From 06d198918c48ef1090f42746396d26d5f2e882be Mon Sep 17 00:00:00 2001
From: Jean-Noël Rouvignac <jean-noel.rouvignac@forgerock.com>
Date: Wed, 01 Jun 2016 09:51:51 +0000
Subject: [PATCH] OPENDJ-3004 Migrate DITStructureRule

---
 opendj-server-legacy/src/main/java/org/opends/server/core/DirectoryServer.java                                      |   28 
 opendj-server-legacy/src/main/java/org/opends/server/schema/DITStructureRuleSyntax.java                             |  982 ------------------------------
 opendj-server-legacy/src/main/java/org/opends/server/types/Schema.java                                              |  304 ++++----
 opendj-server-legacy/src/main/java/org/opends/server/core/SchemaConfigManager.java                                  |   41 -
 opendj-server-legacy/src/test/java/org/opends/server/backends/SchemaBackendTestCase.java                            |   90 ++
 opendj-server-legacy/src/main/java/org/opends/server/extensions/GoverningStructureRuleVirtualAttributeProvider.java |   14 
 opendj-server-legacy/src/messages/org/opends/messages/schema.properties                                             |    2 
 opendj-core/src/main/java/org/forgerock/opendj/ldap/schema/DITStructureRule.java                                    |    9 
 /dev/null                                                                                                           |  166 -----
 opendj-server-legacy/src/main/java/org/opends/server/backends/SchemaBackend.java                                    |  166 ----
 opendj-server-legacy/src/main/java/org/opends/server/types/Entry.java                                               |   41 
 opendj-server-legacy/src/main/java/org/opends/server/types/DirectoryConfig.java                                     |   17 
 opendj-core/src/test/java/org/forgerock/opendj/ldap/schema/DITStructureRuleTestCase.java                            |    7 
 13 files changed, 308 insertions(+), 1,559 deletions(-)

diff --git a/opendj-core/src/main/java/org/forgerock/opendj/ldap/schema/DITStructureRule.java b/opendj-core/src/main/java/org/forgerock/opendj/ldap/schema/DITStructureRule.java
index 51b24ce..1bc3df5 100644
--- a/opendj-core/src/main/java/org/forgerock/opendj/ldap/schema/DITStructureRule.java
+++ b/opendj-core/src/main/java/org/forgerock/opendj/ldap/schema/DITStructureRule.java
@@ -14,7 +14,6 @@
  * Copyright 2009 Sun Microsystems, Inc.
  * Portions copyright 2015-2016 ForgeRock AS.
  */
-
 package org.forgerock.opendj.ldap.schema;
 
 import static java.util.Arrays.*;
@@ -51,7 +50,7 @@
         private final Set<Integer> superiorRuleIDs = new LinkedHashSet<>();
 
         Builder(final DITStructureRule structureRule, final SchemaBuilder builder) {
-            super(builder);
+            super(builder, structureRule);
             this.ruleID = structureRule.ruleID;
             this.names.addAll(structureRule.names);
             this.isObsolete = structureRule.isObsolete;
@@ -252,7 +251,6 @@
             this.superiorRuleIDs.addAll(superiorRuleIDs);
             return this;
         }
-
     }
 
     /** The rule ID for this DIT structure rule. */
@@ -460,9 +458,8 @@
 
     boolean validate(final Schema schema, final List<DITStructureRule> invalidSchemaElements,
             final List<LocalizableMessage> warnings) {
-        // Avoid validating this schema element more than once. This may occur
-        // if
-        // multiple rules specify the same superior.
+        // Avoid validating this schema element more than once.
+        // This may occur if multiple rules specify the same superior.
         if (!needsValidating) {
             return isValid;
         }
diff --git a/opendj-core/src/test/java/org/forgerock/opendj/ldap/schema/DITStructureRuleTestCase.java b/opendj-core/src/test/java/org/forgerock/opendj/ldap/schema/DITStructureRuleTestCase.java
index 933f3d2..c20322c 100644
--- a/opendj-core/src/test/java/org/forgerock/opendj/ldap/schema/DITStructureRuleTestCase.java
+++ b/opendj-core/src/test/java/org/forgerock/opendj/ldap/schema/DITStructureRuleTestCase.java
@@ -11,10 +11,11 @@
  * Header, with the fields enclosed by brackets [] replaced by your own identifying
  * information: "Portions Copyright [year] [name of copyright owner]".
  *
- * Copyright 2015 ForgeRock AS.
+ * Copyright 2015-2016 ForgeRock AS.
  */
 package org.forgerock.opendj.ldap.schema;
 
+import static java.util.Arrays.*;
 import static java.util.Collections.*;
 
 import static org.fest.assertions.Assertions.*;
@@ -75,6 +76,7 @@
                 .names("DIT structure rule test")
                 .nameForm(NAME_FORM_TEST_OID)
                 .description("My DIT structure rule")
+                .extraProperties("X-SCHEMA-FILE", "99-user.ldif")
                 .addToSchema()
                 .toSchema();
 
@@ -93,8 +95,9 @@
         assertThat(srCopy.getRuleID()).isEqualTo(43);
         assertThat(srCopy.getNames()).containsOnly("DIT structure rule test", "DIT structure rule test - copy");
         assertThat(srCopy.getNameForm().getOID()).isEqualTo(NAME_FORM_TEST_OID);
-        assertThat(srCopy.getDescription()).isEmpty();
+        assertThat(srCopy.getDescription()).isEqualTo("My DIT structure rule");
         assertThat(srCopy.isObsolete()).isFalse();
+        assertThat(srCopy.getExtraProperties()).includes(entry("X-SCHEMA-FILE", asList("99-user.ldif")));
     }
 
     @Test(expectedExceptions = ConflictingSchemaElementException.class)
diff --git a/opendj-server-legacy/src/main/java/org/opends/server/backends/SchemaBackend.java b/opendj-server-legacy/src/main/java/org/opends/server/backends/SchemaBackend.java
index 09a44bd..b41e289 100644
--- a/opendj-server-legacy/src/main/java/org/opends/server/backends/SchemaBackend.java
+++ b/opendj-server-legacy/src/main/java/org/opends/server/backends/SchemaBackend.java
@@ -63,6 +63,7 @@
 import org.forgerock.opendj.ldap.schema.AttributeType;
 import org.forgerock.opendj.ldap.schema.CoreSchema;
 import org.forgerock.opendj.ldap.schema.DITContentRule;
+import org.forgerock.opendj.ldap.schema.DITStructureRule;
 import org.forgerock.opendj.ldap.schema.MatchingRule;
 import org.forgerock.opendj.ldap.schema.MatchingRuleUse;
 import org.forgerock.opendj.ldap.schema.NameForm;
@@ -82,7 +83,6 @@
 import org.opends.server.core.SearchOperation;
 import org.opends.server.core.ServerContext;
 import org.opends.server.schema.AttributeTypeSyntax;
-import org.opends.server.schema.DITStructureRuleSyntax;
 import org.opends.server.schema.GeneralizedTimeSyntax;
 import org.opends.server.schema.ServerSchemaElement;
 import org.opends.server.schema.SomeSchemaElement;
@@ -91,7 +91,6 @@
 import org.opends.server.types.Attributes;
 import org.opends.server.types.BackupConfig;
 import org.opends.server.types.BackupDirectory;
-import org.opends.server.types.DITStructureRule;
 import org.opends.server.types.DirectoryException;
 import org.opends.server.types.Entry;
 import org.opends.server.types.ExistingFileBehavior;
@@ -581,7 +580,7 @@
         operationalAttrs, nameFormsType, includeSchemaFile, false, true);
     buildSchemaAttribute(schema.getDITContentRules(), userAttrs,
         operationalAttrs, ditContentRulesType, includeSchemaFile, false, true);
-    buildSchemaAttribute(schema.getDITStructureRulesByID().values(), userAttrs,
+    buildSchemaAttribute(schema.getDITStructureRules(), userAttrs,
         operationalAttrs, ditStructureRulesType, includeSchemaFile, false, true);
     buildSchemaAttribute(schema.getMatchingRuleUses(), userAttrs,
         operationalAttrs, matchingRuleUsesType, includeSchemaFile, false, true);
@@ -782,21 +781,7 @@
           {
             for (ByteString v : a)
             {
-              DITStructureRule dsr;
-              try
-              {
-                dsr = DITStructureRuleSyntax.decodeDITStructureRule(v, newSchema, false);
-              }
-              catch (DirectoryException de)
-              {
-                logger.traceException(de);
-
-                LocalizableMessage message = ERR_SCHEMA_MODIFY_CANNOT_DECODE_DSR.get(
-                    v, de.getMessageObject());
-                throw new DirectoryException(
-                    ResultCode.INVALID_ATTRIBUTE_SYNTAX, message, de);
-              }
-
+              DITStructureRule dsr = newSchema.parseDITStructureRule(v.toString());
               addDITStructureRule(dsr, newSchema, modifiedSchemaFiles);
             }
           }
@@ -878,23 +863,8 @@
           {
             for (ByteString v : a)
             {
-              DITStructureRule dsr;
-              try
-              {
-                dsr = DITStructureRuleSyntax.decodeDITStructureRule(v, newSchema, false);
-              }
-              catch (DirectoryException de)
-              {
-                logger.traceException(de);
-
-                LocalizableMessage message = ERR_SCHEMA_MODIFY_CANNOT_DECODE_DSR.get(
-                    v, de.getMessageObject());
-                throw new DirectoryException(
-                    ResultCode.INVALID_ATTRIBUTE_SYNTAX, message, de);
-              }
-
-              removeDITStructureRule(dsr, newSchema, mods, pos,
-                  modifiedSchemaFiles);
+              DITStructureRule dsr = newSchema.parseDITStructureRule(v.toString());
+              removeDITStructureRule(dsr, newSchema, mods, pos, modifiedSchemaFiles);
             }
           }
           else if (at.equals(matchingRuleUsesType))
@@ -1116,17 +1086,6 @@
     }
   }
 
-  private void addNewSchemaElement(Set<String> modifiedSchemaFiles, SchemaElement elem)
-  {
-    String schemaFile = getSchemaFile(elem);
-    if (schemaFile == null || schemaFile.length() == 0)
-    {
-      schemaFile = FILE_USER_SCHEMA_ELEMENTS;
-      setSchemaFile(elem, schemaFile);
-    }
-    modifiedSchemaFiles.add(schemaFile);
-  }
-
   /**
    * Update list of modified files and return the schema file to use for the
    * added element (may be null).
@@ -1139,32 +1098,6 @@
     return schemaFile == null ? finalFile : null;
   }
 
-  private <T extends SchemaElement> void replaceExistingSchemaElement(
-      Set<String> modifiedSchemaFiles, T newElem, T existingElem)
-  {
-    String newSchemaFile = getSchemaFile(newElem);
-    String oldSchemaFile = getSchemaFile(existingElem);
-    if (newSchemaFile == null || newSchemaFile.length() == 0)
-    {
-      if (oldSchemaFile == null || oldSchemaFile.length() == 0)
-      {
-        oldSchemaFile = FILE_USER_SCHEMA_ELEMENTS;
-      }
-
-      setSchemaFile(newElem, oldSchemaFile);
-      modifiedSchemaFiles.add(oldSchemaFile);
-    }
-    else if (oldSchemaFile == null || oldSchemaFile.equals(newSchemaFile))
-    {
-      modifiedSchemaFiles.add(newSchemaFile);
-    }
-    else
-    {
-      modifiedSchemaFiles.add(newSchemaFile);
-      modifiedSchemaFiles.add(oldSchemaFile);
-    }
-  }
-
   /**
    * Update list of modified files and return the schema file to use for the new
    * element (may be null).
@@ -1459,7 +1392,7 @@
         String oid;
         try
         {
-          oid = schema.parseOID(v.toString(), ResultCode.INVALID_ATTRIBUTE_SYNTAX, ERR_PARSING_OBJECTCLASS_OID);
+          oid = Schema.parseOID(v.toString(), ERR_PARSING_OBJECTCLASS_OID);
         }
         catch (DirectoryException de)
         {
@@ -1679,15 +1612,15 @@
     }
 
     // Make sure that the name form isn't referenced by any DIT structure rule.
-    DITStructureRule dsr = schema.getDITStructureRule(removeNF);
-    if (dsr != null)
+    Collection<DITStructureRule> ditRules = schema.getDITStructureRules(removeNF);
+    if (!ditRules.isEmpty())
     {
       LocalizableMessage message = ERR_SCHEMA_MODIFY_REMOVE_NF_IN_DSR.get(
-          removeNF.getNameOrOID(), dsr.getNameOrRuleID());
+          removeNF.getNameOrOID(), ditRules.iterator().next().getNameOrRuleID());
       throw new DirectoryException(ResultCode.UNWILLING_TO_PERFORM, message);
     }
 
-    // If we've gotten here, then it's OK to remove the name form from the schema.
+    // Now remove the name form from the schema.
     schema.deregisterNameForm(removeNF);
     String schemaFile = getSchemaFile(removeNF);
     if (schemaFile != null)
@@ -1886,13 +1819,14 @@
     // check the rule ID and all of the names, which means that it's possible
     // there could be more than one match (although if there is, then we'll
     // refuse the operation).
-    DITStructureRule existingDSR =
-         schema.getDITStructureRule(ditStructureRule.getRuleID());
-    //Boolean to check if the new rule is in use or not.
-    boolean inUse = false;
-    for (DITStructureRule dsr : schema.getDITStructureRulesByID().values())
+    final org.forgerock.opendj.ldap.schema.Schema schemaNG = schema.getSchemaNG();
+    final Integer ruleID = ditStructureRule.getRuleID();
+    DITStructureRule existingDSR = schemaNG.hasDITStructureRule(ruleID) ? schemaNG.getDITStructureRule(ruleID) : null;
+
+    boolean newRuleIsInUse = false;
+    for (DITStructureRule dsr : schema.getDITStructureRules())
     {
-      for (String name : ditStructureRule.getNames().keySet())
+      for (String name : ditStructureRule.getNames())
       {
         if (dsr.hasName(name))
         {
@@ -1906,12 +1840,12 @@
             throw new DirectoryException(ResultCode.UNWILLING_TO_PERFORM,
                                          message);
           }
-          inUse = true;
+          newRuleIsInUse = true;
         }
       }
     }
 
-    if(existingDSR != null && !inUse)
+    if (existingDSR != null && !newRuleIsInUse)
     {
       //We have an existing DSR with the same rule id but we couldn't find
       //any existing rules sharing this name. It means that it is a
@@ -1920,35 +1854,12 @@
       LocalizableMessage message = ERR_SCHEMA_MODIFY_RULEID_CONFLICTS_FOR_ADD_DSR.
                 get(ditStructureRule.getNameOrRuleID(),
                     existingDSR.getNameOrRuleID());
-      throw new DirectoryException(ResultCode.UNWILLING_TO_PERFORM,
-                                         message);
-    }
-
-    // Get the name form for the new DIT structure rule and see if there's
-    // already an existing rule that is associated with that name form.  If
-    // there is, then it will only be acceptable if it's the DIT structure rule
-    // that we are replacing (in which case we really do want to use the "!="
-    // operator).
-    NameForm nameForm = ditStructureRule.getNameForm();
-    DITStructureRule existingRuleForNameForm =
-         schema.getDITStructureRule(nameForm);
-    if (existingRuleForNameForm != null &&
-        existingRuleForNameForm != existingDSR)
-    {
-      LocalizableMessage message = ERR_SCHEMA_MODIFY_NAME_FORM_CONFLICT_FOR_ADD_DSR.
-          get(ditStructureRule.getNameOrRuleID(), nameForm.getNameOrOID(),
-              existingRuleForNameForm.getNameOrRuleID());
       throw new DirectoryException(ResultCode.UNWILLING_TO_PERFORM, message);
     }
 
     // Make sure that the new DIT structure rule doesn't reference an undefined
     // name form or superior DIT structure rule.
-    if (! schema.hasNameForm(nameForm.getOID()))
-    {
-      LocalizableMessage message = ERR_SCHEMA_MODIFY_DSR_UNDEFINED_NAME_FORM.get(
-          ditStructureRule.getNameOrRuleID(), nameForm.getNameOrOID());
-      throw new DirectoryException(ResultCode.UNWILLING_TO_PERFORM, message);
-    }
+    NameForm nameForm = ditStructureRule.getNameForm();
     if (nameForm.isObsolete())
     {
       LocalizableMessage message = ERR_SCHEMA_MODIFY_DSR_OBSOLETE_NAME_FORM.get(
@@ -1972,16 +1883,16 @@
     // Otherwise, we're replacing an existing one.
     if (existingDSR == null)
     {
-      schema.registerDITStructureRule(ditStructureRule, false);
-      addNewSchemaElement(modifiedSchemaFiles, ditStructureRule);
+      String schemaFile = addNewSchemaElement(modifiedSchemaFiles, new ServerSchemaElement(ditStructureRule));
+      schema.registerDITStructureRule(ditStructureRule, schemaFile, false);
     }
     else
     {
       schema.deregisterDITStructureRule(existingDSR);
-      schema.registerDITStructureRule(ditStructureRule, false);
+      String schemaFile = replaceExistingSchemaElement(
+          modifiedSchemaFiles, new ServerSchemaElement(ditStructureRule), new ServerSchemaElement(existingDSR));
+      schema.registerDITStructureRule(ditStructureRule, schemaFile, false);
       schema.rebuildDependentElements(existingDSR);
-      replaceExistingSchemaElement(modifiedSchemaFiles, ditStructureRule,
-          existingDSR);
     }
   }
 
@@ -2045,21 +1956,7 @@
 
       for (ByteString v : a)
       {
-        DITStructureRule dsr;
-        try
-        {
-          dsr = DITStructureRuleSyntax.decodeDITStructureRule(v, schema, true);
-        }
-        catch (DirectoryException de)
-        {
-          logger.traceException(de);
-
-          LocalizableMessage message = ERR_SCHEMA_MODIFY_CANNOT_DECODE_DSR.get(
-              v, de.getMessageObject());
-          throw new DirectoryException(
-                         ResultCode.INVALID_ATTRIBUTE_SYNTAX, message, de);
-        }
-
+        DITStructureRule dsr = schema.parseDITStructureRule(v.toString());
         if (ditStructureRule.getRuleID() == dsr.getRuleID())
         {
           // We found a match where the DIT structure rule is added back later,
@@ -2071,7 +1968,7 @@
 
     // Make sure that the DIT structure rule isn't the superior for any other
     // DIT structure rule.
-    for (DITStructureRule dsr : schema.getDITStructureRulesByID().values())
+    for (DITStructureRule dsr : schema.getDITStructureRules())
     {
       if (dsr.getSuperiorRules().contains(removeDSR))
       {
@@ -2240,9 +2137,7 @@
   private void addLdapSyntaxDescription(final String definition, Schema schema, Set<String> modifiedSchemaFiles)
           throws DirectoryException
   {
-    // Check if there is an existing syntax with this oid.
-    String oid =
-        Schema.parseOID(definition, ResultCode.INVALID_ATTRIBUTE_SYNTAX, ERR_PARSING_LDAP_SYNTAX_OID);
+    String oid = Schema.parseOID(definition, ERR_PARSING_LDAP_SYNTAX_OID);
 
     // We allow only unimplemented syntaxes to be substituted.
     if (schema.hasSyntax(oid))
@@ -2296,8 +2191,7 @@
      * part of the ldapsyntaxes attribute. A virtual value is not searched and
      * hence never deleted.
      */
-    String oid =
-        Schema.parseOID(definition, ResultCode.INVALID_ATTRIBUTE_SYNTAX, ERR_PARSING_LDAP_SYNTAX_OID);
+    String oid = Schema.parseOID(definition, ERR_PARSING_LDAP_SYNTAX_OID);
 
     LDAPSyntaxDescription removeLSD = schema.getLdapSyntaxDescription(oid);
     if (removeLSD == null)
@@ -2472,7 +2366,7 @@
     // the same file are written before the subordinate rules.
     Set<DITStructureRule> addedDSRs = new HashSet<>();
     values = new LinkedHashSet<>();
-    for (DITStructureRule dsr : schema.getDITStructureRulesByID().values())
+    for (DITStructureRule dsr : schema.getDITStructureRules())
     {
       if (schemaFile.equals(getSchemaFile(dsr)))
       {
diff --git a/opendj-server-legacy/src/main/java/org/opends/server/core/DirectoryServer.java b/opendj-server-legacy/src/main/java/org/opends/server/core/DirectoryServer.java
index e4d2023..987ed28 100644
--- a/opendj-server-legacy/src/main/java/org/opends/server/core/DirectoryServer.java
+++ b/opendj-server-legacy/src/main/java/org/opends/server/core/DirectoryServer.java
@@ -72,6 +72,7 @@
 import org.forgerock.opendj.ldap.schema.AttributeType;
 import org.forgerock.opendj.ldap.schema.CoreSchema;
 import org.forgerock.opendj.ldap.schema.DITContentRule;
+import org.forgerock.opendj.ldap.schema.DITStructureRule;
 import org.forgerock.opendj.ldap.schema.MatchingRule;
 import org.forgerock.opendj.ldap.schema.MatchingRuleUse;
 import org.forgerock.opendj.ldap.schema.NameForm;
@@ -150,7 +151,6 @@
 import org.opends.server.types.BackupConfig;
 import org.opends.server.types.Control;
 import org.opends.server.types.CryptoManager;
-import org.opends.server.types.DITStructureRule;
 import org.opends.server.types.DirectoryEnvironmentConfig;
 import org.opends.server.types.DirectoryException;
 import org.opends.server.types.Entry;
@@ -2631,32 +2631,6 @@
   }
 
   /**
-   * Retrieves the DIT structure rule associated with the provided name form.
-   *
-   * @param  nameForm  The name form for which to retrieve the associated DIT
-   *                   structure rule.
-   *
-   * @return  The requested DIT structure rule, or {@code null} if no such
-   *          rule is defined.
-   */
-  public static DITStructureRule getDITStructureRule(NameForm nameForm)
-  {
-    return directoryServer.schema.getDITStructureRule(nameForm);
-  }
-
-  /**
-   * Deregisters the provided DIT structure rule with the Directory Server.
-   *
-   * @param  ditStructureRule  The DIT structure rule to deregister with the
-   *                           server.
-   */
-  public static void deregisterDITStructureRule(DITStructureRule
-                                                     ditStructureRule)
-  {
-    directoryServer.schema.deregisterDITStructureRule(ditStructureRule);
-  }
-
-  /**
    * Retrieves the name forms associated with the specified objectclass.
    *
    * @param  objectClass  The objectclass for which to retrieve the associated
diff --git a/opendj-server-legacy/src/main/java/org/opends/server/core/SchemaConfigManager.java b/opendj-server-legacy/src/main/java/org/opends/server/core/SchemaConfigManager.java
index 2aa47ba..7cd5858 100644
--- a/opendj-server-legacy/src/main/java/org/opends/server/core/SchemaConfigManager.java
+++ b/opendj-server-legacy/src/main/java/org/opends/server/core/SchemaConfigManager.java
@@ -32,9 +32,7 @@
 import org.forgerock.opendj.ldap.schema.AttributeType;
 import org.forgerock.opendj.ldap.schema.CoreSchema;
 import org.forgerock.opendj.ldap.schema.Syntax;
-import org.opends.server.schema.DITStructureRuleSyntax;
 import org.opends.server.types.Attribute;
-import org.opends.server.types.DITStructureRule;
 import org.opends.server.types.DirectoryException;
 import org.opends.server.types.Entry;
 import org.opends.server.types.InitializationException;
@@ -47,8 +45,6 @@
 import static org.opends.messages.ConfigMessages.*;
 import static org.opends.server.config.ConfigConstants.*;
 import static org.opends.server.schema.SchemaConstants.*;
-import static org.opends.server.types.CommonSchemaElements.*;
-import static org.opends.server.util.ServerConstants.*;
 import static org.opends.server.util.StaticUtils.*;
 
 /**
@@ -720,9 +716,10 @@
           // Register it with the schema.  We will allow duplicates, with the
           // later definition overriding any earlier definition, but we want
           // to trap them and log a warning.
+          String definition = v.toString();
           try
           {
-            schema.registerNameForm(v.toString(), schemaFile, failOnError);
+            schema.registerNameForm(definition, schemaFile, failOnError);
           }
           catch (DirectoryException de)
           {
@@ -732,7 +729,7 @@
 
             try
             {
-              schema.registerNameForm(v.toString(), schemaFile, true);
+              schema.registerNameForm(definition, schemaFile, true);
             }
             catch (Exception e)
             {
@@ -803,39 +800,13 @@
       {
         for (ByteString v : a)
         {
-          // Parse the DIT content rule.
-          DITStructureRule dsr;
-          try
-          {
-            dsr = DITStructureRuleSyntax.decodeDITStructureRule(v, schema, false);
-            dsr.getExtraProperties().remove(SCHEMA_PROPERTY_FILENAME);
-            setSchemaFile(dsr, schemaFile);
-          }
-          catch (DirectoryException de)
-          {
-            logger.traceException(de);
-
-            LocalizableMessage message = WARN_CONFIG_SCHEMA_CANNOT_PARSE_DSR.get(
-                    schemaFile, de.getMessageObject());
-            reportError(failOnError, de, message);
-            continue;
-          }
-          catch (Exception e)
-          {
-            logger.traceException(e);
-
-            LocalizableMessage message = WARN_CONFIG_SCHEMA_CANNOT_PARSE_DSR.get(
-                    schemaFile, v + ":  " + getExceptionMessage(e));
-            reportError(failOnError, e, message);
-            continue;
-          }
-
           // Register it with the schema.  We will allow duplicates, with the
           // later definition overriding any earlier definition, but we want
           // to trap them and log a warning.
+          String definition = v.toString();
           try
           {
-            schema.registerDITStructureRule(dsr, failOnError);
+            schema.registerDITStructureRule(definition, schemaFile, failOnError);
           }
           catch (DirectoryException de)
           {
@@ -845,7 +816,7 @@
 
             try
             {
-              schema.registerDITStructureRule(dsr, true);
+              schema.registerDITStructureRule(definition, schemaFile, true);
             }
             catch (Exception e)
             {
diff --git a/opendj-server-legacy/src/main/java/org/opends/server/extensions/GoverningStructureRuleVirtualAttributeProvider.java b/opendj-server-legacy/src/main/java/org/opends/server/extensions/GoverningStructureRuleVirtualAttributeProvider.java
index 5e32702..4ad0d88 100644
--- a/opendj-server-legacy/src/main/java/org/opends/server/extensions/GoverningStructureRuleVirtualAttributeProvider.java
+++ b/opendj-server-legacy/src/main/java/org/opends/server/extensions/GoverningStructureRuleVirtualAttributeProvider.java
@@ -26,7 +26,9 @@
 import org.forgerock.opendj.ldap.RDN;
 import org.forgerock.opendj.ldap.ResultCode;
 import org.forgerock.opendj.ldap.schema.AttributeType;
+import org.forgerock.opendj.ldap.schema.DITStructureRule;
 import org.forgerock.opendj.ldap.schema.NameForm;
+import org.forgerock.opendj.ldap.schema.ObjectClass;
 import org.forgerock.opendj.server.config.server.GoverningStructureRuleVirtualAttributeCfg;
 import org.opends.server.api.VirtualAttributeProvider;
 import org.opends.server.core.DirectoryServer;
@@ -34,9 +36,8 @@
 import org.opends.server.types.AcceptRejectWarn;
 import org.opends.server.types.Attribute;
 import org.opends.server.types.Attributes;
-import org.opends.server.types.DITStructureRule;
 import org.opends.server.types.Entry;
-import org.forgerock.opendj.ldap.schema.ObjectClass;
+import org.opends.server.types.Schema;
 import org.opends.server.types.VirtualAttributeRule;
 
 import static org.opends.messages.ExtensionMessages.*;
@@ -177,7 +178,8 @@
     if (oc == null) {
       return null;
     }
-    Collection<NameForm> listForms = DirectoryServer.getNameForm(oc);
+    Schema schema = DirectoryServer.getSchema();
+    Collection<NameForm> listForms = schema.getNameForm(oc);
     NameForm nameForm = null;
     DITStructureRule ditRule = null;
     //We iterate over all the nameforms while creating the entry and
@@ -203,7 +205,11 @@
       }
       if (nameForm != null && !obsolete)
       {
-        ditRule = DirectoryServer.getDITStructureRule(nameForm);
+        Collection<DITStructureRule> ditRules = schema.getDITStructureRules(nameForm);
+        if (!ditRules.isEmpty())
+        {
+          ditRule = ditRules.iterator().next();
+        }
       }
     }
     return ditRule;
diff --git a/opendj-server-legacy/src/main/java/org/opends/server/schema/DITStructureRuleSyntax.java b/opendj-server-legacy/src/main/java/org/opends/server/schema/DITStructureRuleSyntax.java
index ecf7fa5..700a807 100644
--- a/opendj-server-legacy/src/main/java/org/opends/server/schema/DITStructureRuleSyntax.java
+++ b/opendj-server-legacy/src/main/java/org/opends/server/schema/DITStructureRuleSyntax.java
@@ -15,26 +15,11 @@
  * Portions Copyright 2011-2016 ForgeRock AS.
  */
 package org.opends.server.schema;
-import static org.opends.messages.SchemaMessages.*;
 import static org.opends.server.schema.SchemaConstants.*;
-import static org.opends.server.util.StaticUtils.*;
 
-import java.util.LinkedHashMap;
-import java.util.LinkedHashSet;
-import java.util.LinkedList;
-import java.util.List;
-
-import org.forgerock.i18n.LocalizableMessage;
-import org.forgerock.opendj.ldap.ByteSequence;
-import org.forgerock.opendj.ldap.ResultCode;
-import org.forgerock.opendj.ldap.schema.NameForm;
 import org.forgerock.opendj.ldap.schema.Syntax;
 import org.forgerock.opendj.server.config.server.AttributeSyntaxCfg;
 import org.opends.server.api.AttributeSyntax;
-import org.opends.server.core.DirectoryServer;
-import org.opends.server.types.DITStructureRule;
-import org.opends.server.types.DirectoryException;
-import org.opends.server.types.Schema;
 
 /**
  * This class implements the DIT structure rule description syntax, which is
@@ -44,7 +29,6 @@
 public class DITStructureRuleSyntax
        extends AttributeSyntax<AttributeSyntaxCfg>
 {
-
   /**
    * Creates a new instance of this syntax.  Note that the only thing that
    * should be done here is to invoke the default constructor for the
@@ -56,993 +40,27 @@
     super();
   }
 
-  /** {@inheritDoc} */
   @Override
   public Syntax getSDKSyntax(org.forgerock.opendj.ldap.schema.Schema schema)
   {
     return schema.getSyntax(SchemaConstants.SYNTAX_DIT_STRUCTURE_RULE_OID);
   }
 
-  /** {@inheritDoc} */
   @Override
   public String getName()
   {
     return SYNTAX_DIT_STRUCTURE_RULE_NAME;
   }
 
-  /** {@inheritDoc} */
   @Override
   public String getOID()
   {
     return SYNTAX_DIT_STRUCTURE_RULE_OID;
   }
 
-  /** {@inheritDoc} */
   @Override
   public String getDescription()
   {
     return SYNTAX_DIT_STRUCTURE_RULE_DESCRIPTION;
   }
-
-  /**
-   * Decodes the contents of the provided ASN.1 octet string as a DIT structure
-   * rule definition according to the rules of this syntax.  Note that the
-   * provided octet string value does not need to be normalized (and in fact, it
-   * should not be in order to allow the desired capitalization to be
-   * preserved).
-   *
-   * @param  value                 The ASN.1 octet string containing the value
-   *                               to decode (it does not need to be
-   *                               normalized).
-   * @param  schema                The schema to use to resolve references to
-   *                               other schema elements.
-   * @param  allowUnknownElements  Indicates whether to allow values that
-   *                               reference a name form and/or superior rules
-   *                               which are not defined in the server schema.
-   *                               This should only be true when called by
-   *                               {@code valueIsAcceptable}.
-   *
-   * @return  The decoded DIT structure rule definition.
-   *
-   * @throws  DirectoryException  If the provided value cannot be decoded as an
-   *                              DIT structure rule definition.
-   */
-  public static DITStructureRule decodeDITStructureRule(ByteSequence value,
-                                      Schema schema,
-                                      boolean allowUnknownElements)
-         throws DirectoryException
-  {
-    // Get string representations of the provided value using the provided form
-    // and with all lowercase characters.
-    String valueStr = value.toString();
-    String lowerStr = toLowerCase(valueStr);
-
-
-    // We'll do this a character at a time.  First, skip over any leading
-    // whitespace.
-    int pos    = 0;
-    int length = valueStr.length();
-    while (pos < length && valueStr.charAt(pos) == ' ')
-    {
-      pos++;
-    }
-
-    if (pos >= length)
-    {
-      // This means that the value was empty or contained only whitespace.  That
-      // is illegal.
-      LocalizableMessage message = ERR_ATTR_SYNTAX_DSR_EMPTY_VALUE.get();
-      throw new DirectoryException(
-              ResultCode.INVALID_ATTRIBUTE_SYNTAX, message);
-    }
-
-
-    // The next character must be an open parenthesis.  If it is not, then that
-    // is an error.
-    char c = valueStr.charAt(pos++);
-    if (c != '(')
-    {
-      LocalizableMessage message = ERR_ATTR_SYNTAX_DSR_EXPECTED_OPEN_PARENTHESIS.get(
-          valueStr, pos-1, c);
-      throw new DirectoryException(ResultCode.INVALID_ATTRIBUTE_SYNTAX, message);
-    }
-
-
-    // Skip over any spaces immediately following the opening parenthesis.
-    while (pos < length && ((c = valueStr.charAt(pos)) == ' '))
-    {
-      pos++;
-    }
-
-    if (pos >= length)
-    {
-      // This means that the end of the value was reached before we could find
-      // the OID.  Ths is illegal.
-      LocalizableMessage message = ERR_ATTR_SYNTAX_DSR_TRUNCATED_VALUE.get(valueStr);
-      throw new DirectoryException(
-              ResultCode.INVALID_ATTRIBUTE_SYNTAX, message);
-    }
-
-
-    // The next set of characters must be the rule ID, which is an integer.
-    int ruleIDStartPos = pos;
-    while (pos < length && ((c = valueStr.charAt(pos++)) != ' '))
-    {
-      if (! isDigit(c))
-      {
-        LocalizableMessage message = ERR_ATTR_SYNTAX_DSR_ILLEGAL_CHAR_IN_RULE_ID.get(
-            valueStr, c, pos-1);
-        throw new DirectoryException(ResultCode.INVALID_ATTRIBUTE_SYNTAX,
-                                     message);
-      }
-    }
-
-    // If we're at the end of the value, then it isn't a valid DIT structure
-    // rule description.  Otherwise, parse out the rule ID.
-    int ruleID;
-    if (pos >= length)
-    {
-      LocalizableMessage message = ERR_ATTR_SYNTAX_DSR_TRUNCATED_VALUE.get(valueStr);
-      throw new DirectoryException(
-              ResultCode.INVALID_ATTRIBUTE_SYNTAX, message);
-    }
-    else
-    {
-      ruleID = Integer.parseInt(valueStr.substring(ruleIDStartPos, pos-1));
-    }
-
-
-    // Skip over the space(s) after the rule ID.
-    while (pos < length && ((c = valueStr.charAt(pos)) == ' '))
-    {
-      pos++;
-    }
-
-    if (pos >= length)
-    {
-      // This means that the end of the value was reached before we could find
-      // the rule ID.  Ths is illegal.
-      LocalizableMessage message = ERR_ATTR_SYNTAX_DSR_TRUNCATED_VALUE.get(valueStr);
-      throw new DirectoryException(
-              ResultCode.INVALID_ATTRIBUTE_SYNTAX, message);
-    }
-
-
-    // At this point, we should have a pretty specific syntax that describes
-    // what may come next, but some of the components are optional and it would
-    // be pretty easy to put something in the wrong order, so we will be very
-    // flexible about what we can accept.  Just look at the next token, figure
-    // out what it is and how to treat what comes after it, then repeat until
-    // we get to the end of the value.  But before we start, set default values
-    // for everything else we might need to know.
-    LinkedHashMap<String,String> names = new LinkedHashMap<>();
-    String description = null;
-    boolean isObsolete = false;
-    NameForm nameForm = null;
-    boolean nameFormGiven = false;
-    LinkedHashSet<DITStructureRule> superiorRules = null;
-    LinkedHashMap<String,List<String>> extraProperties = new LinkedHashMap<>();
-
-
-    while (true)
-    {
-      StringBuilder tokenNameBuffer = new StringBuilder();
-      pos = readTokenName(valueStr, tokenNameBuffer, pos);
-      String tokenName = tokenNameBuffer.toString();
-      String lowerTokenName = toLowerCase(tokenName);
-      if (tokenName.equals(")"))
-      {
-        // We must be at the end of the value.  If not, then that's a problem.
-        if (pos < length)
-        {
-          LocalizableMessage message = ERR_ATTR_SYNTAX_DSR_UNEXPECTED_CLOSE_PARENTHESIS.
-              get(valueStr, pos-1);
-          throw new DirectoryException(ResultCode.INVALID_ATTRIBUTE_SYNTAX,
-                                       message);
-        }
-
-        break;
-      }
-      else if (lowerTokenName.equals("name"))
-      {
-        // This specifies the set of names for the DIT structure rule.  It may
-        // be a single name in single quotes, or it may be an open parenthesis
-        // followed by one or more names in single quotes separated by spaces.
-        c = valueStr.charAt(pos++);
-        if (c == '\'')
-        {
-          StringBuilder userBuffer  = new StringBuilder();
-          StringBuilder lowerBuffer = new StringBuilder();
-          pos = readQuotedString(valueStr, lowerStr, userBuffer, lowerBuffer, pos-1);
-          names.put(lowerBuffer.toString(), userBuffer.toString());
-        }
-        else if (c == '(')
-        {
-          StringBuilder userBuffer  = new StringBuilder();
-          StringBuilder lowerBuffer = new StringBuilder();
-          pos = readQuotedString(valueStr, lowerStr, userBuffer, lowerBuffer,
-                                 pos);
-          names.put(lowerBuffer.toString(), userBuffer.toString());
-
-
-          while (true)
-          {
-            if (valueStr.charAt(pos) == ')')
-            {
-              // Skip over any spaces after the parenthesis.
-              pos++;
-              while (pos < length && ((c = valueStr.charAt(pos)) == ' '))
-              {
-                pos++;
-              }
-
-              break;
-            }
-            else
-            {
-              userBuffer  = new StringBuilder();
-              lowerBuffer = new StringBuilder();
-
-              pos = readQuotedString(valueStr, lowerStr, userBuffer,
-                                     lowerBuffer, pos);
-              names.put(lowerBuffer.toString(), userBuffer.toString());
-            }
-          }
-        }
-        else
-        {
-          // This is an illegal character.
-          LocalizableMessage message =
-              ERR_ATTR_SYNTAX_DSR_ILLEGAL_CHAR.get(valueStr, c, pos-1);
-          throw new DirectoryException(ResultCode.INVALID_ATTRIBUTE_SYNTAX, message);
-        }
-      }
-      else if (lowerTokenName.equals("desc"))
-      {
-        // This specifies the description for the DIT structure rule.  It is an
-        // arbitrary string of characters enclosed in single quotes.
-        StringBuilder descriptionBuffer = new StringBuilder();
-        pos = readQuotedString(valueStr, descriptionBuffer, pos);
-        description = descriptionBuffer.toString();
-      }
-      else if (lowerTokenName.equals("obsolete"))
-      {
-        // This indicates whether the DIT structure rule should be considered
-        // obsolete.  We do not need to do any more parsing for this token.
-        isObsolete = true;
-      }
-      else if (lowerTokenName.equals("form"))
-      {
-        // This should be the OID of the associated name form.
-        StringBuilder woidBuffer = new StringBuilder();
-        pos = readWOID(lowerStr, woidBuffer, pos);
-
-        nameFormGiven = true;
-
-        String nameOrOid = woidBuffer.toString();
-        if (!schema.hasNameForm(nameOrOid) && !allowUnknownElements)
-        {
-          throw new DirectoryException(ResultCode.INVALID_ATTRIBUTE_SYNTAX,
-              ERR_ATTR_SYNTAX_DSR_UNKNOWN_NAME_FORM.get(valueStr, woidBuffer));
-        }
-        nameForm = schema.getNameForm(nameOrOid);
-      }
-      else if (lowerTokenName.equals("sup"))
-      {
-        LinkedList<DITStructureRule> superiorList = new LinkedList<>();
-
-        // This specifies the set of superior rule IDs (which are integers) for
-        // this DIT structure rule.  It may be a single rule ID or a set of
-        // rule IDs enclosed in parentheses and separated by spaces.
-        c = valueStr.charAt(pos++);
-        if (c == '(')
-        {
-          while (true)
-          {
-            // Skip over any leading spaces.
-            while (pos < length && ((c = valueStr.charAt(pos)) == ' '))
-            {
-              pos++;
-            }
-
-            if (pos >= length)
-            {
-              LocalizableMessage message =
-                  ERR_ATTR_SYNTAX_DSR_TRUNCATED_VALUE.get(lowerStr);
-              throw new DirectoryException(ResultCode.INVALID_ATTRIBUTE_SYNTAX,
-                                           message);
-            }
-
-            // Read the next integer value.
-            ruleIDStartPos = pos;
-            while (pos < length && ((c = valueStr.charAt(pos++)) != ' '))
-            {
-              if (! isDigit(c))
-              {
-                LocalizableMessage message = ERR_ATTR_SYNTAX_DSR_ILLEGAL_CHAR_IN_RULE_ID.
-                    get(valueStr, c, pos-1);
-                throw new DirectoryException(
-                               ResultCode.INVALID_ATTRIBUTE_SYNTAX, message);
-              }
-            }
-
-            // If we're at the end of the value, then it isn't a valid DIT
-            // structure rule description.  Otherwise, parse out the rule ID.
-            int supRuleID;
-            if (pos >= length)
-            {
-              LocalizableMessage message =
-                  ERR_ATTR_SYNTAX_DSR_TRUNCATED_VALUE.get(valueStr);
-              throw new DirectoryException(ResultCode.INVALID_ATTRIBUTE_SYNTAX,
-                                           message);
-            }
-            else
-            {
-              supRuleID =
-                   Integer.parseInt(valueStr.substring(ruleIDStartPos, pos-1));
-            }
-
-
-            // Get the DIT structure rule with the specified rule ID.
-            DITStructureRule superiorRule =
-                 schema.getDITStructureRule(supRuleID);
-            if (superiorRule == null)
-            {
-              if (! allowUnknownElements)
-              {
-                LocalizableMessage message = ERR_ATTR_SYNTAX_DSR_UNKNOWN_RULE_ID.get(
-                    valueStr, supRuleID);
-                throw new DirectoryException(
-                               ResultCode.INVALID_ATTRIBUTE_SYNTAX, message);
-              }
-            }
-            else
-            {
-              superiorList.add(superiorRule);
-            }
-
-
-            // Skip over any trailing spaces.
-            while (pos < length && ((c = valueStr.charAt(pos)) == ' '))
-            {
-              pos++;
-            }
-
-            if (pos >= length)
-            {
-              LocalizableMessage message =
-                  ERR_ATTR_SYNTAX_DSR_TRUNCATED_VALUE.get(lowerStr);
-              throw new DirectoryException(ResultCode.INVALID_ATTRIBUTE_SYNTAX,
-                                           message);
-            }
-
-
-            // If the next character is a closing parenthesis, then read any
-            // spaces after it and break out of the loop.
-            if (c == ')')
-            {
-              pos++;
-              while (pos < length && ((c = valueStr.charAt(pos)) == ' '))
-              {
-                pos++;
-              }
-
-              if (pos >= length)
-              {
-                LocalizableMessage message =
-                    ERR_ATTR_SYNTAX_DSR_TRUNCATED_VALUE.get(lowerStr);
-                throw new DirectoryException(
-                               ResultCode.INVALID_ATTRIBUTE_SYNTAX, message);
-              }
-
-              break;
-            }
-          }
-        }
-        else
-        {
-          if (pos >= length)
-          {
-            LocalizableMessage message = ERR_ATTR_SYNTAX_DSR_TRUNCATED_VALUE.get(lowerStr);
-            throw new DirectoryException(ResultCode.INVALID_ATTRIBUTE_SYNTAX,
-                                         message);
-          }
-
-          // Read the next integer value.
-          ruleIDStartPos = pos - 1;
-          while (pos < length && ((c = valueStr.charAt(pos++)) != ' '))
-          {
-            if (! isDigit(c))
-            {
-              LocalizableMessage message = ERR_ATTR_SYNTAX_DSR_ILLEGAL_CHAR_IN_RULE_ID.get(valueStr, c, pos-1);
-              throw new DirectoryException(ResultCode.INVALID_ATTRIBUTE_SYNTAX,
-                                           message);
-            }
-          }
-
-          // If we're at the end of the value, then it isn't a valid DIT
-          // structure rule description.  Otherwise, parse out the rule ID.
-          int supRuleID;
-          if (pos >= length)
-          {
-            LocalizableMessage message = ERR_ATTR_SYNTAX_DSR_TRUNCATED_VALUE.get(valueStr);
-            throw new DirectoryException(ResultCode.INVALID_ATTRIBUTE_SYNTAX,
-                                         message);
-          }
-          else
-          {
-            supRuleID =
-                 Integer.parseInt(valueStr.substring(ruleIDStartPos, pos-1));
-          }
-
-
-          // Get the DIT structure rule with the specified rule ID.
-          DITStructureRule superiorRule = schema.getDITStructureRule(supRuleID);
-          if (superiorRule == null)
-          {
-            if (! allowUnknownElements)
-            {
-              LocalizableMessage message =
-                  ERR_ATTR_SYNTAX_DSR_UNKNOWN_RULE_ID.get(valueStr, supRuleID);
-              throw new DirectoryException(ResultCode.INVALID_ATTRIBUTE_SYNTAX,
-                                           message);
-            }
-          }
-          else
-          {
-            superiorList.add(superiorRule);
-          }
-
-
-          // Skip over any trailing spaces.
-          while (pos < length && ((c = valueStr.charAt(pos)) == ' '))
-          {
-            pos++;
-          }
-
-          if (pos >= length)
-          {
-            LocalizableMessage message = ERR_ATTR_SYNTAX_DSR_TRUNCATED_VALUE.get(lowerStr);
-            throw new DirectoryException(ResultCode.INVALID_ATTRIBUTE_SYNTAX,
-                                         message);
-          }
-        }
-
-        superiorRules = new LinkedHashSet<>(superiorList);
-      }
-      else
-      {
-        // This must be a non-standard property and it must be followed by
-        // either a single value in single quotes or an open parenthesis
-        // followed by one or more values in single quotes separated by spaces
-        // followed by a close parenthesis.
-        LinkedList<String> valueList = new LinkedList<>();
-        pos = readExtraParameterValues(valueStr, valueList, pos);
-        extraProperties.put(tokenName, valueList);
-      }
-    }
-
-
-    if (nameForm == null && !nameFormGiven)
-    {
-      LocalizableMessage message = ERR_ATTR_SYNTAX_DSR_NO_NAME_FORM.get(valueStr);
-      throw new DirectoryException(
-              ResultCode.INVALID_ATTRIBUTE_SYNTAX, message);
-    }
-
-
-    return new DITStructureRule(value.toString(), names, ruleID, description,
-                                isObsolete, nameForm, superiorRules,
-                                extraProperties);
-  }
-
-  /**
-   * Reads the next token name from the DIT content rule definition, skipping
-   * over any leading or trailing spaces, and appends it to the provided buffer.
-   *
-   * @param  valueStr   The string representation of the DIT content rule
-   *                    definition.
-   * @param  tokenName  The buffer into which the token name will be written.
-   * @param  startPos   The position in the provided string at which to start
-   *                    reading the token name.
-   *
-   * @return  The position of the first character that is not part of the token
-   *          name or one of the trailing spaces after it.
-   *
-   * @throws  DirectoryException  If a problem is encountered while reading the
-   *                              token name.
-   */
-  private static int readTokenName(String valueStr, StringBuilder tokenName,
-                                   int startPos)
-          throws DirectoryException
-  {
-    // Skip over any spaces at the beginning of the value.
-    char c = '\u0000';
-    int  length = valueStr.length();
-    while (startPos < length && ((c = valueStr.charAt(startPos)) == ' '))
-    {
-      startPos++;
-    }
-
-    if (startPos >= length)
-    {
-      LocalizableMessage message = ERR_ATTR_SYNTAX_DSR_TRUNCATED_VALUE.get(valueStr);
-      throw new DirectoryException(
-              ResultCode.INVALID_ATTRIBUTE_SYNTAX, message);
-    }
-
-
-    // Read until we find the next space.
-    while (startPos < length && ((c = valueStr.charAt(startPos++)) != ' '))
-    {
-      tokenName.append(c);
-    }
-
-
-    // Skip over any trailing spaces after the value.
-    while (startPos < length && ((c = valueStr.charAt(startPos)) == ' '))
-    {
-      startPos++;
-    }
-
-
-    // Return the position of the first non-space character after the token.
-    return startPos;
-  }
-
-  /**
-   * Reads the value of a string enclosed in single quotes, skipping over the
-   * quotes and any leading or trailing spaces, and appending the string to the
-   * provided buffer.
-   *
-   * @param  valueStr     The user-provided representation of the DIT content
-   *                      rule definition.
-   * @param  valueBuffer  The buffer into which the user-provided representation
-   *                      of the value will be placed.
-   * @param  startPos     The position in the provided string at which to start
-   *                      reading the quoted string.
-   *
-   * @return  The position of the first character that is not part of the quoted
-   *          string or one of the trailing spaces after it.
-   *
-   * @throws  DirectoryException  If a problem is encountered while reading the
-   *                              quoted string.
-   */
-  private static int readQuotedString(String valueStr,
-                                      StringBuilder valueBuffer, int startPos)
-          throws DirectoryException
-  {
-    // Skip over any spaces at the beginning of the value.
-    char c = '\u0000';
-    int  length = valueStr.length();
-    while (startPos < length && ((c = valueStr.charAt(startPos)) == ' '))
-    {
-      startPos++;
-    }
-
-    if (startPos >= length)
-    {
-      LocalizableMessage message = ERR_ATTR_SYNTAX_DSR_TRUNCATED_VALUE.get(valueStr);
-      throw new DirectoryException(
-              ResultCode.INVALID_ATTRIBUTE_SYNTAX, message);
-    }
-
-
-    // The next character must be a single quote.
-    if (c != '\'')
-    {
-      LocalizableMessage message =
-          ERR_ATTR_SYNTAX_DSR_EXPECTED_QUOTE_AT_POS.get(valueStr, startPos, c);
-      throw new DirectoryException(
-              ResultCode.INVALID_ATTRIBUTE_SYNTAX, message);
-    }
-
-
-    // Read until we find the closing quote.
-    startPos++;
-    while (startPos < length && ((c = valueStr.charAt(startPos)) != '\''))
-    {
-      valueBuffer.append(c);
-      startPos++;
-    }
-
-
-    // Skip over any trailing spaces after the value.
-    startPos++;
-    while (startPos < length && ((c = valueStr.charAt(startPos)) == ' '))
-    {
-      startPos++;
-    }
-
-
-    // If we're at the end of the value, then that's illegal.
-    if (startPos >= length)
-    {
-      LocalizableMessage message = ERR_ATTR_SYNTAX_DSR_TRUNCATED_VALUE.get(valueStr);
-      throw new DirectoryException(
-              ResultCode.INVALID_ATTRIBUTE_SYNTAX, message);
-    }
-
-
-    // Return the position of the first non-space character after the token.
-    return startPos;
-  }
-
-  /**
-   * Reads the value of a string enclosed in single quotes, skipping over the
-   * quotes and any leading or trailing spaces, and appending the string to the
-   * provided buffer.
-   *
-   * @param  valueStr     The user-provided representation of the DIT content
-   *                      rule definition.
-   * @param  lowerStr     The all-lowercase representation of the DIT content
-   *                      rule definition.
-   * @param  userBuffer   The buffer into which the user-provided representation
-   *                      of the value will be placed.
-   * @param  lowerBuffer  The buffer into which the all-lowercase representation
-   *                      of the value will be placed.
-   * @param  startPos     The position in the provided string at which to start
-   *                      reading the quoted string.
-   *
-   * @return  The position of the first character that is not part of the quoted
-   *          string or one of the trailing spaces after it.
-   *
-   * @throws  DirectoryException  If a problem is encountered while reading the
-   *                              quoted string.
-   */
-  private static int readQuotedString(String valueStr, String lowerStr,
-                                      StringBuilder userBuffer,
-                                      StringBuilder lowerBuffer, int startPos)
-          throws DirectoryException
-  {
-    // Skip over any spaces at the beginning of the value.
-    char c = '\u0000';
-    int  length = lowerStr.length();
-    while (startPos < length && ((c = lowerStr.charAt(startPos)) == ' '))
-    {
-      startPos++;
-    }
-
-    if (startPos >= length)
-    {
-      LocalizableMessage message = ERR_ATTR_SYNTAX_DSR_TRUNCATED_VALUE.get(lowerStr);
-      throw new DirectoryException(
-              ResultCode.INVALID_ATTRIBUTE_SYNTAX, message);
-    }
-
-
-    // The next character must be a single quote.
-    if (c != '\'')
-    {
-      LocalizableMessage message =
-          ERR_ATTR_SYNTAX_DSR_EXPECTED_QUOTE_AT_POS.get(valueStr, startPos, c);
-      throw new DirectoryException(
-              ResultCode.INVALID_ATTRIBUTE_SYNTAX, message);
-    }
-
-
-    // Read until we find the closing quote.
-    startPos++;
-    while (startPos < length && ((c = lowerStr.charAt(startPos)) != '\''))
-    {
-      lowerBuffer.append(c);
-      userBuffer.append(valueStr.charAt(startPos));
-      startPos++;
-    }
-
-
-    // Skip over any trailing spaces after the value.
-    startPos++;
-    while (startPos < length && ((c = lowerStr.charAt(startPos)) == ' '))
-    {
-      startPos++;
-    }
-
-
-    // If we're at the end of the value, then that's illegal.
-    if (startPos >= length)
-    {
-      LocalizableMessage message = ERR_ATTR_SYNTAX_DSR_TRUNCATED_VALUE.get(lowerStr);
-      throw new DirectoryException(
-              ResultCode.INVALID_ATTRIBUTE_SYNTAX, message);
-    }
-
-
-    // Return the position of the first non-space character after the token.
-    return startPos;
-  }
-
-  /**
-   * Reads an attributeType/objectclass description or numeric OID from the
-   * provided string, skipping over any leading or trailing spaces, and
-   * appending the value to the provided buffer.
-   *
-   * @param  lowerStr    The string from which the name or OID is to be read.
-   * @param  woidBuffer  The buffer into which the name or OID should be
-   *                     appended.
-   * @param  startPos    The position at which to start reading.
-   *
-   * @return  The position of the first character after the name or OID that is
-   *          not a space.
-   *
-   * @throws  DirectoryException  If a problem is encountered while reading the
-   *                              name or OID.
-   */
-  private static int readWOID(String lowerStr, StringBuilder woidBuffer,
-                              int startPos)
-          throws DirectoryException
-  {
-    // Skip over any spaces at the beginning of the value.
-    char c = '\u0000';
-    int  length = lowerStr.length();
-    while (startPos < length && ((c = lowerStr.charAt(startPos)) == ' '))
-    {
-      startPos++;
-    }
-
-    if (startPos >= length)
-    {
-      LocalizableMessage message = ERR_ATTR_SYNTAX_DSR_TRUNCATED_VALUE.get(lowerStr);
-      throw new DirectoryException(
-              ResultCode.INVALID_ATTRIBUTE_SYNTAX, message);
-    }
-
-
-    // The next character must be either numeric (for an OID) or alphabetic (for
-    // an attribute type/objectclass description).
-    if (isDigit(c))
-    {
-      // This must be a numeric OID.  In that case, we will accept only digits
-      // and periods, but not consecutive periods.
-      boolean lastWasPeriod = false;
-      while (startPos < length && ((c = lowerStr.charAt(startPos++)) != ' '))
-      {
-        if (c == '.')
-        {
-          if (lastWasPeriod)
-          {
-            LocalizableMessage message = ERR_ATTR_SYNTAX_DSR_DOUBLE_PERIOD_IN_NUMERIC_OID.
-                get(lowerStr, startPos-1);
-            throw new DirectoryException(ResultCode.INVALID_ATTRIBUTE_SYNTAX,
-                                         message);
-          }
-          else
-          {
-            woidBuffer.append(c);
-            lastWasPeriod = true;
-          }
-        }
-        else if (! isDigit(c))
-        {
-          // Technically, this must be an illegal character.  However, it is
-          // possible that someone just got sloppy and did not include a space
-          // between the name/OID and a closing parenthesis.  In that case,
-          // we'll assume it's the end of the value.  What's more, we'll have
-          // to prematurely return to nasty side effects from stripping off
-          // additional characters.
-          if (c == ')')
-          {
-            return startPos-1;
-          }
-
-          // This must have been an illegal character.
-          LocalizableMessage message = ERR_ATTR_SYNTAX_DSR_ILLEGAL_CHAR_IN_NUMERIC_OID.get(lowerStr, c, startPos-1);
-          throw new DirectoryException(ResultCode.INVALID_ATTRIBUTE_SYNTAX, message);
-        }
-        else
-        {
-          woidBuffer.append(c);
-          lastWasPeriod = false;
-        }
-      }
-    }
-    else if (isAlpha(c))
-    {
-      // This must be an attribute type/objectclass description.  In this case,
-      // we will only accept alphabetic characters, numeric digits, and the
-      // hyphen.
-      while (startPos < length && ((c = lowerStr.charAt(startPos++)) != ' '))
-      {
-        if (isAlpha(c) || isDigit(c) || c == '-' ||
-            (c == '_' && DirectoryServer.allowAttributeNameExceptions()))
-        {
-          woidBuffer.append(c);
-        }
-        else
-        {
-          // Technically, this must be an illegal character.  However, it is
-          // possible that someone just got sloppy and did not include a space
-          // between the name/OID and a closing parenthesis.  In that case,
-          // we'll assume it's the end of the value.  What's more, we'll have
-          // to prematurely return to nasty side effects from stripping off
-          // additional characters.
-          if (c == ')')
-          {
-            return startPos-1;
-          }
-
-          // This must have been an illegal character.
-          LocalizableMessage message = ERR_ATTR_SYNTAX_DSR_ILLEGAL_CHAR_IN_STRING_OID.get(lowerStr, c, startPos-1);
-          throw new DirectoryException(ResultCode.INVALID_ATTRIBUTE_SYNTAX, message);
-        }
-      }
-    }
-    else
-    {
-      LocalizableMessage message = ERR_ATTR_SYNTAX_DSR_ILLEGAL_CHAR.get(lowerStr, c, startPos);
-      throw new DirectoryException(ResultCode.INVALID_ATTRIBUTE_SYNTAX, message);
-    }
-
-
-    // Skip over any trailing spaces after the value.
-    while (startPos < length && ((c = lowerStr.charAt(startPos)) == ' '))
-    {
-      startPos++;
-    }
-
-
-    // If we're at the end of the value, then that's illegal.
-    if (startPos >= length)
-    {
-      LocalizableMessage message = ERR_ATTR_SYNTAX_DSR_TRUNCATED_VALUE.get(lowerStr);
-      throw new DirectoryException(
-              ResultCode.INVALID_ATTRIBUTE_SYNTAX, message);
-    }
-
-
-    // Return the position of the first non-space character after the token.
-    return startPos;
-  }
-
-  /**
-   * Reads the value for an "extra" parameter.  It will handle a single unquoted
-   * word (which is technically illegal, but we'll allow it), a single quoted
-   * string, or an open parenthesis followed by a space-delimited set of quoted
-   * strings or unquoted words followed by a close parenthesis.
-   *
-   * @param  valueStr   The string containing the information to be read.
-   * @param  valueList  The list of "extra" parameter values read so far.
-   * @param  startPos   The position in the value string at which to start
-   *                    reading.
-   *
-   * @return  The "extra" parameter value that was read.
-   *
-   * @throws  DirectoryException  If a problem occurs while attempting to read
-   *                              the value.
-   */
-  private static int readExtraParameterValues(String valueStr,
-                          List<String> valueList, int startPos)
-          throws DirectoryException
-  {
-    // Skip over any leading spaces.
-    int length = valueStr.length();
-    char c = '\u0000';
-    while (startPos < length && ((c = valueStr.charAt(startPos)) == ' '))
-    {
-      startPos++;
-    }
-
-    if (startPos >= length)
-    {
-      LocalizableMessage message =
-          ERR_ATTR_SYNTAX_DSR_TRUNCATED_VALUE.get(valueStr);
-      throw new DirectoryException(
-              ResultCode.INVALID_ATTRIBUTE_SYNTAX, message);
-    }
-
-
-    // Look at the next character.  If it is a quote, then parse until the next
-    // quote and end.  If it is an open parenthesis, then parse individual
-    // values until the close parenthesis and end.  Otherwise, parse until the
-    // next space and end.
-    if (c == '\'')
-    {
-      // Parse until the closing quote.
-      StringBuilder valueBuffer = new StringBuilder();
-      startPos++;
-      while (startPos < length && ((c = valueStr.charAt(startPos)) != '\''))
-      {
-        valueBuffer.append(c);
-        startPos++;
-      }
-      startPos++;
-      valueList.add(valueBuffer.toString());
-    }
-    else if (c == '(')
-    {
-      startPos++;
-      // We're expecting a list of values. Quoted, space separated.
-      while (true)
-      {
-        // Skip over any leading spaces;
-        while (startPos < length && ((c = valueStr.charAt(startPos)) == ' '))
-        {
-          startPos++;
-        }
-
-        if (startPos >= length)
-        {
-          LocalizableMessage message =
-              ERR_ATTR_SYNTAX_DSR_TRUNCATED_VALUE.get(valueStr);
-          throw new DirectoryException(ResultCode.INVALID_ATTRIBUTE_SYNTAX,
-                                       message);
-        }
-
-        if (c == ')')
-        {
-          // This is the end of the list.
-          startPos++;
-          break;
-        }
-        else if (c == '(')
-        {
-          // This is an illegal character.
-          LocalizableMessage message = ERR_ATTR_SYNTAX_DSR_ILLEGAL_CHAR.get(valueStr, c, startPos);
-          throw new DirectoryException(ResultCode.INVALID_ATTRIBUTE_SYNTAX, message);
-        }
-        else if (c == '\'')
-        {
-          // We have a quoted string
-          StringBuilder valueBuffer = new StringBuilder();
-          startPos++;
-          while (startPos < length && ((c = valueStr.charAt(startPos)) != '\''))
-          {
-            valueBuffer.append(c);
-            startPos++;
-          }
-
-          valueList.add(valueBuffer.toString());
-          startPos++;
-        }
-        else
-        {
-          //Consider unquoted string
-          StringBuilder valueBuffer = new StringBuilder();
-          while (startPos < length && ((c = valueStr.charAt(startPos)) != ' '))
-          {
-            valueBuffer.append(c);
-            startPos++;
-          }
-
-          valueList.add(valueBuffer.toString());
-        }
-
-        if (startPos >= length)
-        {
-          LocalizableMessage message =
-              ERR_ATTR_SYNTAX_DSR_TRUNCATED_VALUE.get(valueStr);
-          throw new DirectoryException(ResultCode.INVALID_ATTRIBUTE_SYNTAX, message);
-        }
-      }
-    }
-    else
-    {
-      // Parse until the next space.
-      StringBuilder valueBuffer = new StringBuilder();
-      while (startPos < length && ((c = valueStr.charAt(startPos)) != ' '))
-      {
-        valueBuffer.append(c);
-        startPos++;
-      }
-
-      valueList.add(valueBuffer.toString());
-    }
-
-    // Skip over any trailing spaces.
-    while (startPos < length && valueStr.charAt(startPos) == ' ')
-    {
-      startPos++;
-    }
-
-    if (startPos >= length)
-    {
-      LocalizableMessage message =
-          ERR_ATTR_SYNTAX_DSR_TRUNCATED_VALUE.get(valueStr);
-      throw new DirectoryException(
-              ResultCode.INVALID_ATTRIBUTE_SYNTAX, message);
-    }
-
-    return startPos;
-  }
 }
-
diff --git a/opendj-server-legacy/src/main/java/org/opends/server/types/DITStructureRule.java b/opendj-server-legacy/src/main/java/org/opends/server/types/DITStructureRule.java
deleted file mode 100644
index f4c7609..0000000
--- a/opendj-server-legacy/src/main/java/org/opends/server/types/DITStructureRule.java
+++ /dev/null
@@ -1,382 +0,0 @@
-/*
- * The contents of this file are subject to the terms of the Common Development and
- * Distribution License (the License). You may not use this file except in compliance with the
- * License.
- *
- * You can obtain a copy of the License at legal/CDDLv1.0.txt. See the License for the
- * specific language governing permission and limitations under the License.
- *
- * When distributing Covered Software, include this CDDL Header Notice in each file and include
- * the License file at legal/CDDLv1.0.txt. If applicable, add the following below the CDDL
- * Header, with the fields enclosed by brackets [] replaced by your own identifying
- * information: "Portions Copyright [year] [name of copyright owner]".
- *
- * Copyright 2006-2008 Sun Microsystems, Inc.
- * Portions Copyright 2013-2016 ForgeRock AS.
- */
-package org.opends.server.types;
-
-import java.util.LinkedHashMap;
-import java.util.LinkedHashSet;
-import java.util.List;
-import java.util.Map;
-import java.util.Set;
-
-import org.forgerock.i18n.slf4j.LocalizedLogger;
-import org.forgerock.opendj.ldap.schema.NameForm;
-import org.forgerock.opendj.ldap.schema.ObjectClass;
-import org.forgerock.opendj.ldap.schema.SchemaElement;
-
-import static org.forgerock.util.Reject.*;
-import static org.opends.server.util.ServerConstants.*;
-
-/**
- * This class defines a DIT structure rule, which is used to indicate
- * the types of children that entries may have.
- */
-@org.opends.server.types.PublicAPI(
-     stability=org.opends.server.types.StabilityLevel.UNCOMMITTED,
-     mayInstantiate=false,
-     mayExtend=false,
-     mayInvoke=true)
-public final class DITStructureRule implements SchemaElement
-{
-  private static final LocalizedLogger logger = LocalizedLogger.getLoggerForThisClass();
-
-  /** Indicates whether this DIT structure rule is declared "obsolete". */
-  private final boolean isObsolete;
-
-  /** The rule ID for this DIT structure rule. */
-  private final int ruleID;
-
-  /** The name form for this DIT structure rule. */
-  private final NameForm nameForm;
-
-  /**
-   * The set of additional name-value pairs associated with this DIT
-   * structure rule.
-   */
-  private final Map<String,List<String>> extraProperties;
-
-  /**
-   * The set of names for this DIT structure rule, in a mapping
-   * between the all-lowercase form and the user-defined form.
-   */
-  private final Map<String,String> names;
-
-  /** The set of superior DIT structure rules. */
-  private final Set<DITStructureRule> superiorRules;
-
-  /** The definition string for this DIT structure rule. */
-  private final String definition;
-
-  /** The description for this DIT structure rule. */
-  private final String description;
-
-
-
-  /**
-   * Creates a new DIT structure rule with the provided information.
-   *
-   * @param  definition       The definition string used to create
-   *                          this DIT structure rule.  It must not be
-   *                          {@code null}.
-   * @param  names            The set of names for this DIT structure
-   *                          rule, mapping the lowercase names to the
-   *                          user-defined values.
-   * @param  ruleID           The rule ID for this DIT structure rule.
-   * @param  description      The description for this DIT structure
-   *                          rule.
-   * @param  isObsolete       Indicates whether this DIT structure
-   *                          rule is declared "obsolete".
-   * @param  nameForm         The name form for this DIT structure
-   *                          rule.
-   * @param  superiorRules    References to the superior rules for
-   *                          this DIT structure rule.
-   * @param  extraProperties  The set of "extra" properties associated
-   *                          with this DIT structure rules.
-   */
-  public DITStructureRule(String definition, Map<String,String> names,
-                          int ruleID, String description,
-                          boolean isObsolete, NameForm nameForm,
-                          Set<DITStructureRule> superiorRules,
-                          Map<String,List<String>> extraProperties)
-  {
-    ifNull(definition);
-
-    this.ruleID      = ruleID;
-    this.description = description;
-    this.isObsolete  = isObsolete;
-    this.nameForm    = nameForm;
-
-    int schemaFilePos = definition.indexOf(SCHEMA_PROPERTY_FILENAME);
-    if (schemaFilePos > 0)
-    {
-      String defStr;
-      try
-      {
-        int firstQuotePos = definition.indexOf('\'', schemaFilePos);
-        int secondQuotePos = definition.indexOf('\'',
-                                                firstQuotePos+1);
-
-        defStr = definition.substring(0, schemaFilePos).trim() + " " +
-                 definition.substring(secondQuotePos+1).trim();
-      }
-      catch (Exception e)
-      {
-        logger.traceException(e);
-
-        defStr = definition;
-      }
-
-      this.definition = defStr;
-    }
-    else
-    {
-      this.definition = definition;
-    }
-
-    if (names == null || names.isEmpty())
-    {
-      this.names = new LinkedHashMap<>(0);
-    }
-    else
-    {
-      this.names = new LinkedHashMap<>(names);
-    }
-
-    if (superiorRules == null || superiorRules.isEmpty())
-    {
-      this.superiorRules = new LinkedHashSet<>(0);
-    }
-    else
-    {
-      this.superiorRules = new LinkedHashSet<>(superiorRules);
-    }
-
-    if (extraProperties == null || extraProperties.isEmpty())
-    {
-      this.extraProperties = new LinkedHashMap<>(0);
-    }
-    else
-    {
-      this.extraProperties = new LinkedHashMap<>(extraProperties);
-    }
-  }
-
-
-
-  /**
-   * Retrieves the set of names that may be used to reference this DIT
-   * structure rule.  The returned mapping will be between an all
-   * lower-case form of the name and a name in the user-defined form
-   * (which may include mixed capitalization).
-   *
-   * @return  The set of names that may be used to reference this DIT
-   *          structure rule.
-   */
-  public Map<String,String> getNames()
-  {
-    return names;
-  }
-
-
-
-  /**
-   * Indicates whether this DIT structure rule has the specified name.
-   *
-   * @param  lowerName  The lowercase name for which to make the
-   *                    determination.
-   *
-   * @return  {@code true} if the specified name is assigned to this
-   *          DIT structure rule, or {@code false} if not.
-   */
-  public boolean hasName(String lowerName)
-  {
-    return names.containsKey(lowerName);
-  }
-
-
-
-  /**
-   * Retrieves the rule ID for this DIT structure rule.
-   *
-   * @return  The rule ID for this DIT structure rule.
-   */
-  public int getRuleID()
-  {
-    return ruleID;
-  }
-
-
-
-  /**
-   * Retrieves the name or rule ID for this DIT structure rule.  If it
-   * has one or more names, then the primary name will be returned.
-   * If it does not have any names, then the rule ID will be returned.
-   *
-   * @return  The name or rule ID for this DIT structure rule.
-   */
-  public String getNameOrRuleID()
-  {
-    if (names.isEmpty())
-    {
-      return String.valueOf(ruleID);
-    }
-    else
-    {
-      return names.values().iterator().next();
-    }
-  }
-
-
-
-  /**
-   * Retrieves the description for this DIT structure rule.
-   *
-   * @return  The description for this DIT structure rule.
-   */
-  @Override
-  public String getDescription()
-  {
-    return description;
-  }
-
-
-
-  /**
-   * Retrieves the name form for this DIT structure rule.
-   *
-   * @return  The name form for this DIT structure rule.
-   */
-  public NameForm getNameForm()
-  {
-    return nameForm;
-  }
-
-
-
-  /**
-   * Retrieves the structural objectclass for the name form with which
-   * this DIT structure rule is associated.
-   *
-   * @return  The structural objectclass for the name form with which
-   *          this DIT structure rule is associated.
-   */
-  public ObjectClass getStructuralClass()
-  {
-    return nameForm.getStructuralClass();
-  }
-
-
-
-  /**
-   * Retrieves the set of superior rules for this DIT structure rule.
-   *
-   * @return  The set of superior rules for this DIT structure rule.
-   */
-  public Set<DITStructureRule> getSuperiorRules()
-  {
-    return superiorRules;
-  }
-
-
-
-  /**
-   * Indicates whether this DIT structure rule has one or more
-   * superior rules.
-   *
-   * @return  {@code true} if this DIT structure rule has one or more
-   *          superior rules, or {@code false} if not.
-   */
-  boolean hasSuperiorRules()
-  {
-    return superiorRules != null && !superiorRules.isEmpty();
-  }
-
-
-
-  /**
-   * Indicates whether this DIT structure rule is declared "obsolete".
-   *
-   * @return  {@code true} if this DIT structure rule is declared
-   *          "obsolete", or {@code false} if not.
-   */
-  public boolean isObsolete()
-  {
-    return isObsolete;
-  }
-
-
-
-  /**
-   * Retrieves a mapping between the names of any extra non-standard
-   * properties that may be associated with this DIT structure rule
-   * and the value for that property.
-   *
-   * @return  A mapping between the names of any extra non-standard
-   *          properties that may be associated with this DIT
-   *          structure rule and the value for that property.
-   */
-  @Override
-  public Map<String,List<String>> getExtraProperties()
-  {
-    return extraProperties;
-  }
-
-
-
-  /**
-   * Indicates whether the provided object is equal to this DIT
-   * structure rule.  The object will be considered equal if it is a
-   * DIT structure rule with the same OID as the current type.
-   *
-   * @param  o  The object for which to make the determination.
-   *
-   * @return  {@code true} if the provided object is equal to this
-   *          attribute, or {@code false} if not.
-   */
-  @Override
-  public boolean equals(Object o)
-  {
-    if (this == o)
-    {
-      return true;
-    }
-    if (!(o instanceof DITStructureRule))
-    {
-      return false;
-    }
-    return ruleID == ((DITStructureRule) o).ruleID;
-  }
-
-
-
-  /**
-   * Retrieves the hash code for this DIT structure rule.  It will be
-   * equal to the rule ID.
-   *
-   * @return  The hash code for this DIT structure rule.
-   */
-  @Override
-  public int hashCode()
-  {
-    return ruleID;
-  }
-
-
-
-  /**
-   * Retrieves the string representation of this attribute type in the
-   * form specified in RFC 2252.
-   *
-   * @return  The string representation of this attribute type in the
-   *          form specified in RFC 2252.
-   */
-  @Override
-  public String toString()
-  {
-    return definition;
-  }
-
-}
diff --git a/opendj-server-legacy/src/main/java/org/opends/server/types/DirectoryConfig.java b/opendj-server-legacy/src/main/java/org/opends/server/types/DirectoryConfig.java
index d8e4ef5..17cc2eb 100644
--- a/opendj-server-legacy/src/main/java/org/opends/server/types/DirectoryConfig.java
+++ b/opendj-server-legacy/src/main/java/org/opends/server/types/DirectoryConfig.java
@@ -24,6 +24,7 @@
 import org.forgerock.opendj.ldap.ResultCode;
 import org.forgerock.opendj.ldap.schema.AttributeType;
 import org.forgerock.opendj.ldap.schema.DITContentRule;
+import org.forgerock.opendj.ldap.schema.DITStructureRule;
 import org.forgerock.opendj.ldap.schema.MatchingRule;
 import org.forgerock.opendj.ldap.schema.MatchingRuleUse;
 import org.forgerock.opendj.ldap.schema.NameForm;
@@ -382,22 +383,6 @@
   }
 
   /**
-   * Retrieves the DIT structure rule associated with the provided
-   * name form.
-   *
-   * @param  nameForm  The name form for which to retrieve the
-   *                   associated DIT structure rule.
-   *
-   * @return  The requested DIT structure rule, or <CODE>null</CODE>
-   *          if no such rule is defined.
-   */
-  public static DITStructureRule
-       getDITStructureRule(NameForm nameForm)
-  {
-    return DirectoryServer.getDITStructureRule(nameForm);
-  }
-
-  /**
    * Retrieves the collection of name forms associated with the specified
    * structural objectclass.
    *
diff --git a/opendj-server-legacy/src/main/java/org/opends/server/types/Entry.java b/opendj-server-legacy/src/main/java/org/opends/server/types/Entry.java
index 80a07e9..7850eb3 100644
--- a/opendj-server-legacy/src/main/java/org/opends/server/types/Entry.java
+++ b/opendj-server-legacy/src/main/java/org/opends/server/types/Entry.java
@@ -47,6 +47,7 @@
 import org.forgerock.opendj.ldap.SearchScope;
 import org.forgerock.opendj.ldap.schema.AttributeType;
 import org.forgerock.opendj.ldap.schema.DITContentRule;
+import org.forgerock.opendj.ldap.schema.DITStructureRule;
 import org.forgerock.opendj.ldap.schema.MatchingRule;
 import org.forgerock.opendj.ldap.schema.NameForm;
 import org.forgerock.opendj.ldap.schema.ObjectClass;
@@ -1652,10 +1653,13 @@
 
         if (validateStructureRules && nameForm != null)
         {
-          ditStructureRule = DirectoryServer.getDITStructureRule(nameForm);
-          if (ditStructureRule != null && ditStructureRule.isObsolete())
+          for (DITStructureRule ditRule : DirectoryServer.getSchema().getDITStructureRules(nameForm))
           {
-            ditStructureRule = null;
+            if (!ditRule.isObsolete())
+            {
+              ditStructureRule = ditRule;
+              break;
+            }
           }
         }
       }
@@ -2002,7 +2006,7 @@
   {
     // If there is a DIT structure rule for this entry, then make sure
     // that the entry is in compliance with it.
-    if (ditStructureRule != null && ditStructureRule.hasSuperiorRules())
+    if (ditStructureRule != null && !ditStructureRule.getSuperiorRules().isEmpty())
     {
       if (parentProvided)
       {
@@ -2166,23 +2170,22 @@
           {
             for(NameForm parentNF : allNFs)
             {
-              if (parentNF != null && !parentNF.isObsolete())
+              if (!parentNF.isObsolete())
               {
-                DITStructureRule parentDSR =
-                     DirectoryServer.getDITStructureRule(parentNF);
-                if (parentDSR != null && !parentDSR.isObsolete())
+                for (DITStructureRule parentDSR : DirectoryServer.getSchema().getDITStructureRules(parentNF))
                 {
-                  LocalizableMessage message =
-                       ERR_ENTRY_SCHEMA_VIOLATES_PARENT_DSR.get(dn, parentEntry.getName());
-
-                  if (structuralPolicy == AcceptRejectWarn.REJECT)
+                  if (!parentDSR.isObsolete())
                   {
-                    invalidReason.append(message);
-                    return false;
-                  }
-                  else if (structuralPolicy == AcceptRejectWarn.WARN)
-                  {
-                    logger.error(message);
+                    LocalizableMessage message = ERR_ENTRY_SCHEMA_VIOLATES_PARENT_DSR.get(dn, parentEntry.getName());
+                    if (structuralPolicy == AcceptRejectWarn.REJECT)
+                    {
+                      invalidReason.append(message);
+                      return false;
+                    }
+                    else if (structuralPolicy == AcceptRejectWarn.WARN)
+                    {
+                      logger.error(message);
+                    }
                   }
                 }
               }
@@ -2242,7 +2245,7 @@
     boolean matchFound = false;
     for (DITStructureRule dsr2 : dsr.getSuperiorRules())
     {
-      if (dsr2.getStructuralClass().equals(oc))
+      if (dsr2.getNameForm().getStructuralClass().equals(oc))
       {
         matchFound = true;
       }
diff --git a/opendj-server-legacy/src/main/java/org/opends/server/types/Schema.java b/opendj-server-legacy/src/main/java/org/opends/server/types/Schema.java
index 65e707d..b971960 100644
--- a/opendj-server-legacy/src/main/java/org/opends/server/types/Schema.java
+++ b/opendj-server-legacy/src/main/java/org/opends/server/types/Schema.java
@@ -50,6 +50,7 @@
 import org.forgerock.opendj.ldap.schema.ConflictingSchemaElementException;
 import org.forgerock.opendj.ldap.schema.CoreSchema;
 import org.forgerock.opendj.ldap.schema.DITContentRule;
+import org.forgerock.opendj.ldap.schema.DITStructureRule;
 import org.forgerock.opendj.ldap.schema.MatchingRule;
 import org.forgerock.opendj.ldap.schema.MatchingRuleUse;
 import org.forgerock.opendj.ldap.schema.MatchingRuleUse.Builder;
@@ -63,16 +64,13 @@
 import org.forgerock.util.Utils;
 import org.opends.server.core.DirectoryServer;
 import org.opends.server.core.SchemaConfigManager;
-import org.opends.server.schema.DITStructureRuleSyntax;
 import org.opends.server.util.Base64;
 import org.opends.server.util.ServerConstants;
-import org.opends.server.util.StaticUtils;
 
 import static org.opends.messages.BackendMessages.*;
 import static org.opends.messages.CoreMessages.*;
 import static org.opends.messages.SchemaMessages.*;
 import static org.opends.server.config.ConfigConstants.*;
-import static org.opends.server.types.CommonSchemaElements.*;
 import static org.opends.server.util.CollectionUtils.*;
 import static org.opends.server.util.ServerConstants.*;
 import static org.opends.server.util.StaticUtils.*;
@@ -110,20 +108,6 @@
   private Map<AttributeType, List<AttributeType>> subordinateTypes;
 
   /**
-   * The set of DIT structure rules for this schema, mapped between the name
-   * form for the definition and the DIT structure rule itself.
-   */
-  private ConcurrentHashMap<Integer,DITStructureRule>
-               ditStructureRulesByID;
-
-  /**
-   * The set of DIT structure rules for this schema, mapped between the name
-   * form for the definition and the DIT structure rule itself.
-   */
-  private ConcurrentHashMap<NameForm,DITStructureRule>
-               ditStructureRulesByNameForm;
-
-  /**
    * The set of ldap syntax descriptions for this schema, mapped the OID and the
    * ldap syntax description itself.
    */
@@ -168,8 +152,6 @@
   {
     switchSchema(schemaNG);
 
-    ditStructureRulesByID = new ConcurrentHashMap<Integer,DITStructureRule>();
-    ditStructureRulesByNameForm = new ConcurrentHashMap<NameForm,DITStructureRule>();
     ldapSyntaxDescriptions = new ConcurrentHashMap<String,LDAPSyntaxDescription>();
     subordinateTypes = new ConcurrentHashMap<AttributeType,List<AttributeType>>();
 
@@ -405,6 +387,36 @@
   }
 
   /**
+   * Parses a DIT structure rule from its provided definition.
+   *
+   * @param definition
+   *          The definition of the DIT structure rule
+   * @return the DIT structure rule
+   * @throws DirectoryException
+   *           If an error occurs
+   */
+  public DITStructureRule parseDITStructureRule(String definition) throws DirectoryException
+  {
+    try
+    {
+      SchemaBuilder builder = new SchemaBuilder(schemaNG);
+      builder.addDITStructureRule(definition, true);
+      org.forgerock.opendj.ldap.schema.Schema newSchema = builder.toSchema();
+      rejectSchemaWithWarnings(newSchema);
+      return newSchema.getDITStructureRule(parseRuleID(definition));
+    }
+    catch (UnknownSchemaElementException e)
+    {
+      LocalizableMessage msg = ERR_NAME_FORM_CANNOT_REGISTER.get(definition);
+      throw new DirectoryException(ResultCode.UNWILLING_TO_PERFORM, msg, e);
+    }
+    catch (LocalizedIllegalArgumentException e)
+    {
+      throw new DirectoryException(ResultCode.INVALID_ATTRIBUTE_SYNTAX, e.getMessageObject(), e);
+    }
+  }
+
+  /**
    * Registers a list of attribute types from their provided definitions.
    * <p>
    * This method allows to do only one schema change for multiple definitions,
@@ -595,27 +607,33 @@
    */
   public String parseObjectClassOID(String definition) throws DirectoryException
   {
-    return parseOID(definition, ResultCode.INVALID_ATTRIBUTE_SYNTAX, ERR_PARSING_OBJECTCLASS_OID);
+    return parseOID(definition, ERR_PARSING_OBJECTCLASS_OID);
   }
 
   private String parseAttributeTypeOID(String definition) throws DirectoryException
   {
-    return parseOID(definition, ResultCode.INVALID_ATTRIBUTE_SYNTAX, ERR_PARSING_ATTRIBUTE_TYPE_OID);
+    return parseOID(definition, ERR_PARSING_ATTRIBUTE_TYPE_OID);
   }
 
   private String parseMatchingRuleUseOID(String definition) throws DirectoryException
   {
-    return parseOID(definition, ResultCode.INVALID_ATTRIBUTE_SYNTAX, ERR_PARSING_MATCHING_RULE_USE_OID);
+    return parseOID(definition, ERR_PARSING_MATCHING_RULE_USE_OID);
   }
 
   private String parseNameFormOID(String definition) throws DirectoryException
   {
-    return parseOID(definition, ResultCode.INVALID_ATTRIBUTE_SYNTAX, ERR_PARSING_NAME_FORM_OID);
+    return parseOID(definition, ERR_PARSING_NAME_FORM_OID);
   }
 
   private String parseDITContentRuleOID(String definition) throws DirectoryException
   {
-    return parseOID(definition, ResultCode.INVALID_ATTRIBUTE_SYNTAX, ERR_PARSING_DIT_CONTENT_RULE_OID);
+    return parseOID(definition, ERR_PARSING_DIT_CONTENT_RULE_OID);
+  }
+
+  private int parseRuleID(String definition) throws DirectoryException
+  {
+    // Reuse code of parseOID, even though this is not an OID
+    return Integer.parseInt(parseOID(definition, ERR_PARSING_DIT_STRUCTURE_RULE_RULEID));
   }
 
   /**
@@ -626,14 +644,12 @@
    *
    * @param definition
    *          The definition of a schema element, assumed to be valid
-   * @param parsingErrorResultCode the result code to use if a problem occurs while parsing the definition
    * @param parsingErrorMsg the message to use if a problem occurs while parsing the definition
    * @return the OID, which is never {@code null}
    * @throws DirectoryException
    *           If a problem occurs while parsing the definition
    */
-  public static String parseOID(String definition, ResultCode parsingErrorResultCode, Arg1<Object> parsingErrorMsg)
-      throws DirectoryException
+  public static String parseOID(String definition, Arg1<Object> parsingErrorMsg) throws DirectoryException
   {
     try
     {
@@ -661,7 +677,7 @@
     }
     catch (IndexOutOfBoundsException e)
     {
-      throw new DirectoryException(parsingErrorResultCode, parsingErrorMsg.get(definition), e);
+      throw new DirectoryException(ResultCode.INVALID_ATTRIBUTE_SYNTAX, parsingErrorMsg.get(definition), e);
     }
   }
 
@@ -1608,39 +1624,16 @@
 
 
   /**
-   * Retrieves the DIT structure rule definitions for this schema, as
-   * a mapping between the rule ID for the rule and the DIT structure
-   * rule itself.  Each DIT structure rule should only be present
-   * once, since its only key is its rule ID.  The contents of the
-   * returned mapping must not be altered.
+   * Retrieves the DIT structure rule definitions for this schema.
+   * The contents of the returned mapping must not be altered.
    *
-   * @return  The DIT structure rule definitions for this schema.
+   * @return The DIT structure rule definitions for this schema.
    */
-  public ConcurrentHashMap<Integer,DITStructureRule>
-              getDITStructureRulesByID()
+  public Collection<DITStructureRule> getDITStructureRules()
   {
-    return ditStructureRulesByID;
+    return schemaNG.getDITStuctureRules();
   }
 
-
-
-  /**
-   * Retrieves the DIT structure rule definitions for this schema, as
-   * a mapping between the name form for the rule and the DIT
-   * structure rule itself.  Each DIT structure rule should only be
-   * present once, since its only key is its name form.  The contents
-   * of the returned mapping must not be altered.
-   *
-   * @return  The DIT structure rule definitions for this schema.
-   */
-  public ConcurrentHashMap<NameForm,DITStructureRule>
-              getDITStructureRulesByNameForm()
-  {
-    return ditStructureRulesByNameForm;
-  }
-
-
-
   /**
    * Retrieves the DIT structure rule definition with the provided
    * rule ID.
@@ -1654,106 +1647,123 @@
    */
   public DITStructureRule getDITStructureRule(int ruleID)
   {
-    return ditStructureRulesByID.get(ruleID);
+    return schemaNG.getDITStructureRule(ruleID);
+  }
+
+  /**
+   * Retrieves the DIT structure rule definitions for the provided name form.
+   *
+   * @param nameForm
+   *          The name form for the DIT structure rule to retrieve.
+   * @return The requested DIT structure rules, or {@code null} if no DIT structure rule is
+   *         registered with the provided name form.
+   */
+  public Collection<DITStructureRule> getDITStructureRules(NameForm nameForm)
+  {
+    return schemaNG.getDITStructureRules(nameForm);
   }
 
 
 
   /**
-   * Retrieves the DIT structure rule definition for the provided name
-   * form.
+   * Registers the provided DIT structure rule definition with this schema.
    *
-   * @param  nameForm  The name form for the DIT structure rule to
-   *                   retrieve.
-   *
-   * @return  The requested DIT structure rule, or <CODE>null</CODE>
-   *          if no DIT structure rule is registered with the provided
-   *          name form.
+   * @param ditStructureRule
+   *          The DIT structure rule to register.
+   * @param schemaFile
+   *          The schema file where this definition belongs, maybe {@code null}
+   * @param overwriteExisting
+   *          Indicates whether to overwrite an existing mapping if there are any conflicts (i.e.,
+   *          another DIT structure rule with the same name form).
+   * @throws DirectoryException
+   *           If a conflict is encountered and the {@code overwriteExisting} flag is set to
+   *           {@code false}
    */
-  public DITStructureRule getDITStructureRule(NameForm nameForm)
+  public void registerDITStructureRule(DITStructureRule ditStructureRule, String schemaFile, boolean overwriteExisting)
+      throws DirectoryException
   {
-    return ditStructureRulesByNameForm.get(nameForm);
-  }
-
-
-
-  /**
-   * Registers the provided DIT structure rule definition with this
-   * schema.
-   *
-   * @param  ditStructureRule   The DIT structure rule to register.
-   * @param  overwriteExisting  Indicates whether to overwrite an
-   *                            existing mapping if there are any
-   *                            conflicts (i.e., another DIT structure
-   *                            rule with the same name form).
-   *
-   * @throws  DirectoryException  If a conflict is encountered and the
-   *                              <CODE>overwriteExisting</CODE> flag
-   *                              is set to <CODE>false</CODE>
-   */
-  public void registerDITStructureRule(
-                   DITStructureRule ditStructureRule,
-                   boolean overwriteExisting)
-         throws DirectoryException
-  {
-    synchronized (ditStructureRulesByNameForm)
+    exclusiveLock.lock();
+    try
     {
-      NameForm nameForm = ditStructureRule.getNameForm();
-      int      ruleID   = ditStructureRule.getRuleID();
-
-      if (! overwriteExisting)
+      SchemaBuilder builder = new SchemaBuilder(schemaNG);
+      DITStructureRule.Builder dsrBuilder = builder.buildDITStructureRule(ditStructureRule);
+      if (schemaFile != null)
       {
-        if (ditStructureRulesByNameForm.containsKey(nameForm))
-        {
-          DITStructureRule conflictingRule =
-               ditStructureRulesByNameForm.get(nameForm);
-
-          LocalizableMessage message =
-              ERR_SCHEMA_CONFLICTING_DIT_STRUCTURE_RULE_NAME_FORM.
-                get(ditStructureRule.getNameOrRuleID(),
-                    nameForm.getNameOrOID(),
-                    conflictingRule.getNameOrRuleID());
-          throw new DirectoryException(
-                         ResultCode.CONSTRAINT_VIOLATION, message);
-        }
-
-        if (ditStructureRulesByID.containsKey(ruleID))
-        {
-          DITStructureRule conflictingRule =
-               ditStructureRulesByID.get(ruleID);
-
-          LocalizableMessage message =
-              ERR_SCHEMA_CONFLICTING_DIT_STRUCTURE_RULE_ID.
-                get(ditStructureRule.getNameOrRuleID(), ruleID,
-                    conflictingRule.getNameOrRuleID());
-          throw new DirectoryException(
-                         ResultCode.CONSTRAINT_VIOLATION, message);
-        }
+        dsrBuilder.removeExtraProperty(SCHEMA_PROPERTY_FILENAME)
+                  .extraProperties(SCHEMA_PROPERTY_FILENAME, schemaFile);
       }
-
-      ditStructureRulesByNameForm.put(nameForm, ditStructureRule);
-      ditStructureRulesByID.put(ruleID, ditStructureRule);
+      if (overwriteExisting)
+      {
+        dsrBuilder.addToSchemaOverwrite();
+      }
+      else
+      {
+        dsrBuilder.addToSchema();
+      }
+      switchSchema(builder.toSchema());
+    }
+    catch (LocalizedIllegalArgumentException e)
+    {
+      throw new DirectoryException(ResultCode.CONSTRAINT_VIOLATION, e.getMessageObject(), e);
+    }
+    finally
+    {
+      exclusiveLock.unlock();
     }
   }
 
-
+  /**
+   * Registers the provided DIT structure rule definition with this schema.
+   *
+   * @param definition
+   *          The definition of the DIT structure rule to register.
+   * @param schemaFile
+   *          The schema file where this definition belongs, maybe {@code null}
+   * @param overwriteExisting
+   *          Indicates whether to overwrite an existing mapping if there are any conflicts
+   *          (i.e., another DIT structure rule with the same name form).
+   * @throws DirectoryException
+   *           If a conflict is encountered and the {@code overwriteExisting} flag is set to
+   *           {@code false}
+   */
+  public void registerDITStructureRule(String definition, String schemaFile, boolean overwriteExisting)
+      throws DirectoryException
+  {
+    exclusiveLock.lock();
+    try
+    {
+      String definitionWithFile = getDefinitionWithSchemaFile(definition, schemaFile);
+      switchSchema(new SchemaBuilder(schemaNG)
+          .addDITStructureRule(definitionWithFile, overwriteExisting)
+          .toSchema());
+    }
+    finally
+    {
+      exclusiveLock.unlock();
+    }
+  }
 
   /**
-   * Deregisters the provided DIT structure rule definition with this
-   * schema.
+   * Deregisters the provided DIT structure rule definition with this schema.
    *
-   * @param  ditStructureRule  The DIT structure rule to deregister
-   *                           with this schema.
+   * @param ditStructureRule
+   *          The DIT structure rule to deregister with this schema.
+   * @throws DirectoryException
+   *           If an error occurs.
    */
   public void deregisterDITStructureRule(
-                   DITStructureRule ditStructureRule)
+      DITStructureRule ditStructureRule) throws DirectoryException
   {
-    synchronized (ditStructureRulesByNameForm)
+    exclusiveLock.lock();
+    try
     {
-      ditStructureRulesByNameForm.remove(
-           ditStructureRule.getNameForm(), ditStructureRule);
-      ditStructureRulesByID.remove(ditStructureRule.getRuleID(),
-                                   ditStructureRule);
+      SchemaBuilder builder = new SchemaBuilder(schemaNG);
+      builder.removeDITStructureRule(ditStructureRule.getRuleID());
+      switchSchema(builder.toSchema());
+    }
+    finally
+    {
+      exclusiveLock.unlock();
     }
   }
 
@@ -2205,16 +2215,6 @@
     return values != null && ! values.isEmpty() ? values.get(0) : null;
   }
 
-  private DITStructureRule recreateFromDefinition(DITStructureRule dsr)
-      throws DirectoryException
-  {
-    ByteString value = ByteString.valueOfUtf8(dsr.toString());
-    DITStructureRule copy =
-        DITStructureRuleSyntax.decodeDITStructureRule(value, this, false);
-    setSchemaFile(copy, getSchemaFile(dsr));
-    return copy;
-  }
-
   /**
    * Creates a new {@link Schema} object that is a duplicate of this one. It elements may be added
    * and removed from the duplicate without impacting this version.
@@ -2235,8 +2235,6 @@
     }
 
     dupSchema.subordinateTypes.putAll(subordinateTypes);
-    dupSchema.ditStructureRulesByID.putAll(ditStructureRulesByID);
-    dupSchema.ditStructureRulesByNameForm.putAll(ditStructureRulesByNameForm);
     dupSchema.ldapSyntaxDescriptions.putAll(ldapSyntaxDescriptions);
     dupSchema.oldestModificationTime   = oldestModificationTime;
     dupSchema.youngestModificationTime = youngestModificationTime;
@@ -2665,18 +2663,6 @@
       schemaNG = null;
     }
 
-    if (ditStructureRulesByID != null)
-    {
-      ditStructureRulesByID.clear();
-      ditStructureRulesByID = null;
-    }
-
-    if (ditStructureRulesByNameForm != null)
-    {
-      ditStructureRulesByNameForm.clear();
-      ditStructureRulesByNameForm = null;
-    }
-
     if (subordinateTypes != null)
     {
       subordinateTypes.clear();
diff --git a/opendj-server-legacy/src/messages/org/opends/messages/schema.properties b/opendj-server-legacy/src/messages/org/opends/messages/schema.properties
index 82122c0..aaecac3 100644
--- a/opendj-server-legacy/src/messages/org/opends/messages/schema.properties
+++ b/opendj-server-legacy/src/messages/org/opends/messages/schema.properties
@@ -518,3 +518,5 @@
  of name form: '%s'
 ERR_PARSING_DIT_CONTENT_RULE_OID_351=Unable to parse the OID from the provided definition \
  of DIT content rule: '%s'
+ERR_PARSING_DIT_STRUCTURE_RULE_RULEID_352=Unable to parse the rule ID \
+ from the provided definition of DIT structure rule: '%s' 
diff --git a/opendj-server-legacy/src/test/java/org/opends/server/backends/SchemaBackendTestCase.java b/opendj-server-legacy/src/test/java/org/opends/server/backends/SchemaBackendTestCase.java
index 245c348..ee55c0a 100644
--- a/opendj-server-legacy/src/test/java/org/opends/server/backends/SchemaBackendTestCase.java
+++ b/opendj-server-legacy/src/test/java/org/opends/server/backends/SchemaBackendTestCase.java
@@ -46,6 +46,7 @@
 import org.forgerock.opendj.ldap.schema.ObjectClass;
 import org.forgerock.opendj.ldap.schema.Schema;
 import org.forgerock.opendj.ldap.schema.SchemaBuilder;
+import org.forgerock.opendj.ldap.schema.UnknownSchemaElementException;
 import org.forgerock.util.Utils;
 import org.opends.server.TestCaseUtils;
 import org.opends.server.core.AddOperation;
@@ -3181,8 +3182,7 @@
    * @throws  Exception  If an unexpected problem occurs.
    */
   @Test
-  public void testAddDITStructureRuleSuccessful()
-         throws Exception
+  public void testAddDITStructureRuleSuccessful() throws Exception
   {
     String ldif = toLdif(
          "dn: cn=schema",
@@ -3207,13 +3207,49 @@
     int ruleID = 999001;
     assertSchemaHasDITStructureRule(ruleID, false);
 
-    runModify(argsNotPermissive(), ldif, System.err, SUCCESS);
-    assertSchemaHasDITStructureRule(ruleID, true);
+    try
+    {
+      runModify(argsNotPermissive(), ldif, System.err, SUCCESS);
+      assertSchemaHasDITStructureRule(ruleID, true);
+    }
+    finally
+    {
+      // delete in reverse order
+      String ldif2 = toLdif(
+           "dn: cn=schema",
+           "changetype: modify",
+           "delete: ditStructureRules",
+           "ditStructureRules: ( 999001 " +
+                "NAME 'testAddDITStructureRuleSuccessful' " +
+                "FORM testAddDITStructureRuleSuccessfulNF " +
+                "X-ORIGIN 'SchemaBackendTestCase' )",
+          "-",
+          "delete: nameForms",
+          "nameForms: ( testaddditstructurerulesuccessfulnf-oid " +
+               "NAME 'testAddDITStructureRuleSuccessfulNF' " +
+               "OC testAddDITStructureRuleSuccessfulOC MUST cn " +
+               "X-ORIGIN 'SchemaBackendTestCase' )",
+           "-",
+           "delete: objectClasses",
+           "objectClasses:  ( testaddditstructurerulesuccessfuloc-oid " +
+                "NAME 'testAddDITStructureRuleSuccessfulOC' SUP top " +
+                "STRUCTURAL MUST cn X-ORIGIN 'SchemaBackendTestCase')");
+      runModify(argsNotPermissive(), ldif2, System.err, SUCCESS);
+      assertSchemaHasDITStructureRule(ruleID, false);
+    }
   }
 
   private void assertSchemaHasDITStructureRule(int ruleID, boolean expected)
   {
-    assertEquals(DirectoryServer.getSchema().getDITStructureRulesByID().containsKey(ruleID), expected);
+    try
+    {
+      DirectoryServer.getSchema().getDITStructureRule(ruleID);
+      assertTrue(expected, "Expected to find a DITStructureRule with ruleID " + ruleID);
+    }
+    catch (UnknownSchemaElementException e)
+    {
+      assertFalse(expected, e.getMessage());
+    }
   }
 
   /**
@@ -3383,7 +3419,7 @@
     int ruleID = 999004;
     assertSchemaHasDITStructureRule(ruleID, false);
 
-    runModify(argsNotPermissive(), ldif, INVALID_ATTRIBUTE_SYNTAX);
+    runModify(argsNotPermissive(), ldif, CONSTRAINT_VIOLATION);
     assertSchemaHasDITStructureRule(ruleID, false);
   }
 
@@ -3420,11 +3456,51 @@
     int ruleID = 999005;
     assertSchemaHasDITStructureRule(ruleID, false);
 
-    runModify(argsNotPermissive(), ldif, INVALID_ATTRIBUTE_SYNTAX);
+    runModify(argsNotPermissive(), ldif, CONSTRAINT_VIOLATION);
     assertSchemaHasDITStructureRule(ruleID, false);
   }
 
   /**
+   * Tests the addition of a new DITContentRule with a conflicting rule identifier.
+   *
+   * @throws Exception
+   *           If an unexpected problem occurs.
+   */
+  @Test
+  public void testAddDITStructureRuleConflictingRuleID() throws Exception
+  {
+    String ldif = toLdif(
+        "dn: cn=schema",
+        "changetype: modify",
+        "add: nameForms",
+        "nameForms: ( 1.3.6.1.1.10.15.100 NAME 'domainNameForm' OC domain MUST ( dc ) )",
+        "-",
+        "add: dITStructureRules",
+        "dITStructureRules: ( 1 NAME 'dummyStructureRule' FORM domainNameForm )");
+    runModify(argsNotPermissive(), ldif, ATTRIBUTE_OR_VALUE_EXISTS);
+  }
+
+  /**
+   * Tests the addition of a new DITContentRule with a conflicting rule identifier.
+   *
+   * @throws Exception
+   *           If an unexpected problem occurs.
+   */
+  @Test
+  public void testAddDITStructureRuleConflictingRuleIDWithPermissiveControl() throws Exception
+  {
+    String ldif = toLdif(
+        "dn: cn=schema",
+        "changetype: modify",
+        "add: nameForms",
+        "nameForms: ( 1.3.6.1.1.10.15.100 NAME 'domainNameForm' OC domain MUST ( dc ) )",
+        "-",
+        "add: dITStructureRules",
+        "dITStructureRules: ( 1 NAME 'dummyStructureRule' FORM domainNameForm )");
+    runModify(argsPermissive(), ldif, UNWILLING_TO_PERFORM);
+  }
+
+  /**
    * Tests the behavior of the schema backend when attempting to add a new
    * DIT structure rule that references a name form which is OBSOLETE.
    *
diff --git a/opendj-server-legacy/src/test/java/org/opends/server/types/DITStructureRuleTestCase.java b/opendj-server-legacy/src/test/java/org/opends/server/types/DITStructureRuleTestCase.java
deleted file mode 100644
index 4089ff3..0000000
--- a/opendj-server-legacy/src/test/java/org/opends/server/types/DITStructureRuleTestCase.java
+++ /dev/null
@@ -1,166 +0,0 @@
-/*
- * The contents of this file are subject to the terms of the Common Development and
- * Distribution License (the License). You may not use this file except in compliance with the
- * License.
- *
- * You can obtain a copy of the License at legal/CDDLv1.0.txt. See the License for the
- * specific language governing permission and limitations under the License.
- *
- * When distributing Covered Software, include this CDDL Header Notice in each file and include
- * the License file at legal/CDDLv1.0.txt. If applicable, add the following below the CDDL
- * Header, with the fields enclosed by brackets [] replaced by your own identifying
- * information: "Portions Copyright [year] [name of copyright owner]".
- *
- * Copyright 2009 Sun Microsystems, Inc.
- * Portions Copyright 2014-2015 ForgeRock AS.
- */
-package org.opends.server.types;
-
-import static org.testng.Assert.*;
-
-import org.opends.server.TestCaseUtils;
-import org.opends.server.tools.LDAPModify;
-import org.testng.annotations.BeforeClass;
-import org.testng.annotations.Test;
-
-
-
-/**
- * This class provides a set of test cases for DIT Structure Rules
- */
-public class DITStructureRuleTestCase
-       extends TypesTestCase
-{
-
-
-
-  /**
-   * Ensures that the Directory Server is running.
-   *
-   * @throws  Exception  If an unexpected problem occurs.
-   */
-  @BeforeClass
-  public void startServer()
-         throws Exception
-  {
-    TestCaseUtils.startServer();
-  }
-
-
-
-  /**
-   * Tests the addition of a new DITContentRule with a conflicting
-   * rule identifier.
-   *
-   * @throws  Exception  If an unexpected problem occurs.
-   */
-  @Test
-  public void testInvalidDITStructureRule()
-         throws Exception
-  {
-    String filePath = TestCaseUtils.createTempFile(
-      "dn: cn=schema",
-      "changetype: modify",
-      "add: nameForms",
-      "nameForms: ( 1.3.6.1.1.10.15.100 NAME 'domainNameForm' OC domain MUST ( dc ) )",
-      "-",
-      "add: dITStructureRules",
-      "dITStructureRules: ( 1 NAME 'domainStructureRule' FORM domainNameForm )"
-      );
-    String[] args = new String []
-    {
-      "-h", "127.0.0.1",
-      "-p", String.valueOf(TestCaseUtils.getServerLdapPort()),
-      "-D", "cn=directory manager",
-      "-w", "password",
-      "-J", "1.2.840.113556.1.4.1413",
-      "-a",
-      "-f", filePath
-    };
-    int err = LDAPModify.mainModify(args, false, null,null);
-    //Shouldn't perform this operation.
-    assertEquals(err, 53);
-  }
-
-
-
-  /**
-   * Tests the addition of new DITStructureRules with unique rule ids.
-   *
-   * @throws  Exception  If an unexpected problem occurs.
-   */
-  @Test(dependsOnMethods = {"org.opends.server.types."+
-  "DITStructureRuleTestCase.testInvalidDITStructureRule"})
-  public void testValidDITStructureRules()
-         throws Exception
-  {
-    String filePath = TestCaseUtils.createTempFile(
-      "dn: cn=schema",
-      "changetype: modify",
-      "add: nameForms",
-      "nameForms: ( 1.3.6.1.1.10.15.11 NAME 'domainNameForm' OC domain MUST ( dc ) )",
-      "nameForms: ( 1.3.6.1.1.10.15.12 NAME 'organizationalUnitNameForm' OC organizationalUnit MUST ( ou ) )",
-      "nameForms: ( 1.3.6.1.1.10.15.13 NAME 'inetOrgPersonNameForm' OC inetOrgPerson MUST ( uid ) )",
-      "nameForms: ( 1.3.6.1.1.10.15.14 NAME 'groupOfNamesNameForm' OC groupOfNames MUST ( cn ) )",
-      "-",
-      "add: dITStructureRules",
-      "dITStructureRules: ( 11 NAME 'domainStructureRule' FORM domainNameForm )",
-      "dITStructureRules: ( 12 NAME 'organizationalUnitStructureRule' FORM organizationalUnitNameForm SUP 1 )",
-      "dITStructureRules: ( 13 NAME 'inetOrgPersonStructureRule' FORM inetOrgPersonNameForm SUP 2 )",
-      "dITStructureRules: ( 14 NAME 'groupOfNamesStructureRule' FORM groupOfNamesNameForm SUP 2 )"
-      );
-    String[] args = new String []
-    {
-      "-h", "127.0.0.1",
-      "-p", String.valueOf(TestCaseUtils.getServerLdapPort()),
-      "-D","cn=directory manager",
-      "-w","password",
-      "-a",
-      "-f", filePath
-    };
-    int err = LDAPModify.mainModify(args, false, null,null);
-    //Should add the above entries.
-    assertEquals(err,0);
-  }
-
-
-
-  /**
-   * Cleans up the DITStructureRules.
-   *
-   * @throws  Exception  If an unexpected problem occurs.
-   */
-  @Test(dependsOnMethods = {"org.opends.server.types."+
-  "DITStructureRuleTestCase.testValidDITStructureRules"})
-  public void cleanUpDITStructureRules()
-         throws Exception
-  {
-    String filePath = TestCaseUtils.createTempFile(
-      "dn: cn=schema",
-      "changetype: modify",
-      "delete: dITStructureRules",
-      "dITStructureRules: ( 11 NAME 'domainStructureRule' FORM domainNameForm )",
-      "dITStructureRules: ( 12 NAME 'organizationalUnitStructureRule' FORM organizationalUnitNameForm SUP 1 )",
-      "dITStructureRules: ( 13 NAME 'inetOrgPersonStructureRule' FORM inetOrgPersonNameForm SUP 2 )",
-      "dITStructureRules: ( 14 NAME 'groupOfNamesStructureRule' FORM groupOfNamesNameForm SUP 2 )",
-      "-",
-      "delete: nameForms",
-      "nameForms: ( 1.3.6.1.1.10.15.11 NAME 'domainNameForm' OC domain MUST ( dc ) )",
-      "nameForms: ( 1.3.6.1.1.10.15.12 NAME 'organizationalUnitNameForm' OC organizationalUnit MUST ( ou ) )",
-      "nameForms: ( 1.3.6.1.1.10.15.13 NAME 'inetOrgPersonNameForm' OC inetOrgPerson MUST ( uid ) )",
-      "nameForms: ( 1.3.6.1.1.10.15.14 NAME 'groupOfNamesNameForm' OC groupOfNames MUST ( cn ) )"
-      );
-    String[] args = new String []
-    {
-      "-h", "127.0.0.1",
-      "-p", String.valueOf(TestCaseUtils.getServerLdapPort()),
-      "-D","cn=directory manager",
-      "-w","password",
-      "-a",
-      "-f", filePath
-    };
-    int err = LDAPModify.mainModify(args, false, null,null);
-    //Should delete the above entries.
-    assertEquals(err,0);
-  }
-}

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