/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License, Version 1.0 only
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* (the "License"). You may not use this file except in compliance
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* with the License.
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*
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* You can obtain a copy of the license at legal-notices/CDDLv1_0.txt
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* or http://forgerock.org/license/CDDLv1.0.html.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at legal-notices/CDDLv1_0.txt.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information:
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* Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*
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*
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* Copyright 2009 Sun Microsystems, Inc.
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* Portions copyright 2011 ForgeRock AS
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*/
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package org.forgerock.opendj.ldap.schema;
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import static com.forgerock.opendj.util.StaticUtils.toLowerCase;
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import static com.forgerock.opendj.ldap.CoreMessages.*;
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import static org.forgerock.opendj.ldap.schema.SchemaConstants.EMR_OCTET_STRING_OID;
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import static org.forgerock.opendj.ldap.schema.SchemaConstants.OMR_OCTET_STRING_OID;
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import static org.forgerock.opendj.ldap.schema.SchemaConstants.SYNTAX_ENHANCED_GUIDE_NAME;
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import org.forgerock.i18n.LocalizableMessageBuilder;
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import org.forgerock.opendj.ldap.ByteSequence;
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import org.forgerock.opendj.ldap.DecodeException;
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import com.forgerock.opendj.util.SubstringReader;
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/**
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* This class implements the enhanced guide attribute syntax, which may be used
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* to provide criteria for generating search filters for entries of a given
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* objectclass.
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*/
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final class EnhancedGuideSyntaxImpl extends AbstractSyntaxImpl {
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@Override
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public String getEqualityMatchingRule() {
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return EMR_OCTET_STRING_OID;
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}
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public String getName() {
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return SYNTAX_ENHANCED_GUIDE_NAME;
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}
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@Override
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public String getOrderingMatchingRule() {
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return OMR_OCTET_STRING_OID;
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}
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public boolean isHumanReadable() {
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return true;
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}
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/**
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* Indicates whether the provided value is acceptable for use in an
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* attribute with this syntax. If it is not, then the reason may be appended
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* to the provided buffer.
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*
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* @param schema
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* The schema in which this syntax is defined.
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* @param value
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* The value for which to make the determination.
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* @param invalidReason
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* The buffer to which the invalid reason should be appended.
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* @return <CODE>true</CODE> if the provided value is acceptable for use
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* with this syntax, or <CODE>false</CODE> if not.
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*/
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public boolean valueIsAcceptable(final Schema schema, final ByteSequence value,
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final LocalizableMessageBuilder invalidReason) {
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// Get a lowercase string version of the provided value.
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final String valueStr = toLowerCase(value.toString());
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// Find the position of the first octothorpe. It should denote the
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// end of the objectclass.
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final int sharpPos = valueStr.indexOf('#');
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if (sharpPos < 0) {
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invalidReason.append(ERR_ATTR_SYNTAX_ENHANCEDGUIDE_NO_SHARP1.get(valueStr));
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return false;
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}
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// Get the objectclass and see if it is a valid name or OID.
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final String ocName = valueStr.substring(0, sharpPos).trim();
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final int ocLength = ocName.length();
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if (ocLength == 0) {
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invalidReason.append(ERR_ATTR_SYNTAX_ENHANCEDGUIDE_NO_OC1.get(valueStr));
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return false;
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}
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try {
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SchemaUtils.readOID(new SubstringReader(ocName.substring(ocLength)), schema
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.allowMalformedNamesAndOptions());
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} catch (final DecodeException de) {
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invalidReason.append(de.getMessageObject());
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return false;
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}
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// Find the last octothorpe and make sure it is followed by a valid
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// scope.
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final int lastSharpPos = valueStr.lastIndexOf('#');
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if (lastSharpPos == sharpPos) {
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invalidReason.append(ERR_ATTR_SYNTAX_ENHANCEDGUIDE_NO_FINAL_SHARP.get(valueStr));
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return false;
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}
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final String scopeStr = valueStr.substring(lastSharpPos + 1).trim();
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if (!(scopeStr.equals("baseobject") || scopeStr.equals("onelevel")
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|| scopeStr.equals("wholesubtree") || scopeStr.equals("subordinatesubtree"))) {
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if (scopeStr.length() == 0) {
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invalidReason.append(ERR_ATTR_SYNTAX_ENHANCEDGUIDE_NO_SCOPE.get(valueStr));
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} else {
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invalidReason.append(ERR_ATTR_SYNTAX_ENHANCEDGUIDE_INVALID_SCOPE.get(valueStr,
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scopeStr));
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}
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return false;
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}
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// Everything between the two octothorpes must be the criteria. Make
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// sure it is valid.
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final String criteria = valueStr.substring(sharpPos + 1, lastSharpPos).trim();
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final int criteriaLength = criteria.length();
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if (criteriaLength == 0) {
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invalidReason.append(ERR_ATTR_SYNTAX_ENHANCEDGUIDE_NO_CRITERIA.get(valueStr));
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return false;
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}
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return GuideSyntaxImpl.criteriaIsValid(schema, criteria, valueStr, invalidReason);
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}
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}
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