/*
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* The contents of this file are subject to the terms of the Common Development and
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* Distribution License (the License). You may not use this file except in compliance with the
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* License.
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*
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* You can obtain a copy of the License at legal/CDDLv1.0.txt. See the License for the
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* specific language governing permission and limitations under the License.
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*
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* When distributing Covered Software, include this CDDL Header Notice in each file and include
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* the License file at legal/CDDLv1.0.txt. If applicable, add the following below the CDDL
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* Header, with the fields enclosed by brackets [] replaced by your own identifying
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* information: "Portions Copyright [year] [name of copyright owner]".
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*
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* Copyright 2009-2010 Sun Microsystems, Inc.
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* Portions Copyright 2013-2016 ForgeRock AS.
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*/
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package org.opends.server.replication.plugin;
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import java.util.ArrayList;
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import java.util.TreeSet;
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import java.util.concurrent.atomic.AtomicBoolean;
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import org.forgerock.opendj.ldap.ResultCode;
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import org.opends.server.TestCaseUtils;
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import org.forgerock.opendj.server.config.meta.ReplicationDomainCfgDefn.IsolationPolicy;
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import org.opends.server.core.DirectoryServer;
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import org.opends.server.core.ModifyDNOperation;
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import org.opends.server.replication.ReplicationTestCase;
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import org.opends.server.replication.common.CSN;
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import org.opends.server.replication.common.CSNGenerator;
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import org.opends.server.replication.protocol.AddMsg;
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import org.opends.server.replication.protocol.DeleteMsg;
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import org.opends.server.replication.protocol.LDAPUpdateMsg;
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import org.opends.server.replication.protocol.ModifyDNMsg;
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import org.opends.server.replication.protocol.UpdateMsg;
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import org.opends.server.types.Attribute;
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import org.forgerock.opendj.ldap.DN;
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import org.opends.server.types.Entry;
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import org.forgerock.opendj.ldap.RDN;
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import org.testng.annotations.AfterMethod;
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import org.testng.annotations.BeforeMethod;
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import org.testng.annotations.Test;
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import static org.assertj.core.api.Assertions.*;
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import static org.opends.server.TestCaseUtils.*;
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import static org.opends.server.core.DirectoryServer.*;
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import static org.opends.server.protocols.internal.InternalClientConnection.*;
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import static org.testng.Assert.*;
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/** Test the naming conflict resolution code. */
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@SuppressWarnings("javadoc")
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public class NamingConflictTest extends ReplicationTestCase
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{
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private static final AtomicBoolean SHUTDOWN = new AtomicBoolean(false);
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private DN baseDN;
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private LDAPReplicationDomain domain;
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private CSNGenerator gen;
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private TestSynchronousReplayQueue queue;
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@BeforeMethod
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public void setUpLocal() throws Exception
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{
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baseDN = DN.valueOf(TEST_ROOT_DN_STRING);
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TestCaseUtils.initializeTestBackend(true);
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queue = new TestSynchronousReplayQueue();
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final DomainFakeCfg conf = new DomainFakeCfg(baseDN, 1, new TreeSet<String>());
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conf.setIsolationPolicy(IsolationPolicy.ACCEPT_ALL_UPDATES);
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domain = MultimasterReplication.createNewDomain(conf, queue);
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domain.start();
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gen = new CSNGenerator(201, 0);
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}
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@AfterMethod
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public void tearDown() throws Exception
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{
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MultimasterReplication.deleteDomain(baseDN);
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}
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/**
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* Test for issue 3402 : test, that a modrdn that is older than an other
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* modrdn but that is applied later is ignored.
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*
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* In this test, the local server act both as an LDAP server and
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* a replicationServer that are inter-connected.
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*
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* The test creates an other session to the replicationServer using
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* directly the ReplicationBroker API.
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* It then uses this session to simulate conflicts and therefore
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* test the naming conflict resolution code.
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*/
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@Test
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public void simultaneousModrdnConflict() throws Exception
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{
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String parentUUID = getEntryUUID(baseDN);
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Entry entry = createAndAddEntry("simultaneousModrdnConflict");
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String entryUUID = getEntryUUID(entry.getName());
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// generate two consecutive CSN that will be used in backward order
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CSN csn1 = gen.newCSN();
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CSN csn2 = gen.newCSN();
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replayMsg(modDnMsg(entry, entryUUID, parentUUID, csn2, "uid=simultaneous2"));
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// This MODIFY DN uses an older DN and should therefore be cancelled at replay time.
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replayMsg(modDnMsg(entry, entryUUID, parentUUID, csn1, "uid=simulatneouswrong"));
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// Expect the conflict resolution
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assertFalse(entryExists(entry.getName()), "The modDN conflict was not resolved as expected.");
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}
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private ModifyDNMsg modDnMsg(Entry entry, String entryUUID, String parentUUID, CSN csn, String newRDN)
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throws Exception
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{
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return new ModifyDNMsg(entry.getName(), csn, entryUUID, parentUUID, false, TEST_ROOT_DN_STRING, newRDN);
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}
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/**
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* Test that when a previous conflict is resolved because
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* a delete operation has removed one of the conflicting entries
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* the other conflicting entry is correctly renamed to its original name.
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*/
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@Test
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public void conflictCleaningDelete() throws Exception
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{
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Entry entry = createAndAddEntry("conflictCleaningDelete");
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// Add the first entry
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String parentUUID = getEntryUUID(baseDN);
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CSN csn1 = gen.newCSN();
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// Now try to add the same entry with same DN but a different
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// unique ID though the replication
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replayMsg(addMsg(entry, csn1, parentUUID, "c9cb8c3c-615a-4122-865d-50323aaaed48"));
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// Now delete the first entry that was added at the beginning
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TestCaseUtils.deleteEntry(entry.getName());
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// Expect the conflict resolution : the second entry should now
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// have been renamed with the original DN.
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Entry resultEntry = DirectoryServer.getEntry(entry.getName());
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assertNotNull(resultEntry, "The conflict was not cleared");
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assertEquals(getEntryUUID(resultEntry.getName()),
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"c9cb8c3c-615a-4122-865d-50323aaaed48",
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"The wrong entry has been renamed");
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assertThat(resultEntry.getAttribute(LDAPReplicationDomain.DS_SYNC_CONFLICT)).isEmpty();
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}
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private AddMsg addMsg(Entry entry, CSN csn, String parentUUID, String childUUID)
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{
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return new AddMsg(csn,
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entry.getName(),
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childUUID, parentUUID,
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entry.getObjectClasses(), entry.getUserAttributes(),
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null);
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}
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/**
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* Test that when a previous conflict is resolved because
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* a MODDN operation has removed one of the conflicting entries
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* the other conflicting entry is correctly renamed to its original name.
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*/
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@Test
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public void conflictCleaningMODDN() throws Exception
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{
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Entry entry = createAndAddEntry("conflictCleaningDelete");
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String parentUUID = getEntryUUID(baseDN);
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CSN csn1 = gen.newCSN();
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// Now try to add the same entry with same DN but a different
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// unique ID though the replication
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replayMsg(addMsg(entry, csn1, parentUUID, "c9cb8c3c-615a-4122-865d-50323aaaed48"));
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// Now delete the first entry that was added at the beginning
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ModifyDNOperation modDNOperation =
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getRootConnection().processModifyDN(entry.getName(), RDN.valueOf("cn=foo"), false);
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assertEquals(modDNOperation.getResultCode(), ResultCode.SUCCESS);
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// Expect the conflict resolution : the second entry should now
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// have been renamed with the original DN.
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Entry resultEntry = DirectoryServer.getEntry(entry.getName());
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assertNotNull(resultEntry, "The conflict was not cleared");
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assertEquals(getEntryUUID(resultEntry.getName()),
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"c9cb8c3c-615a-4122-865d-50323aaaed48",
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"The wrong entry has been renamed");
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assertThat(resultEntry.getAttribute(LDAPReplicationDomain.DS_SYNC_CONFLICT)).isEmpty();
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}
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private Entry createAndAddEntry(String commonName) throws Exception
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{
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Entry entry = TestCaseUtils.entryFromLdifString(
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"dn: cn=" + commonName + ", " + TEST_ROOT_DN_STRING + "\n"
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+ "objectClass: top\n"
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+ "objectClass: person\n"
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+ "objectClass: organizationalPerson\n"
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+ "objectClass: inetOrgPerson\n"
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+ "uid: user.1\n"
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+ "description: This is the description for Aaccf Amar.\n"
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+ "st: NC\n"
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+ "postalAddress: Aaccf Amar$17984 Thirteenth Street"
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+ "$Rockford, NC 85762\n"
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+ "mail: user.1@example.com\n"
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+ "cn: Aaccf Amar\n"
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+ "l: Rockford\n"
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+ "street: 17984 Thirteenth Street\n"
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+ "employeeNumber: 1\n"
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+ "sn: Amar\n"
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+ "givenName: Aaccf\n"
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+ "postalCode: 85762\n"
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+ "userPassword: password\n"
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+ "initials: AA\n");
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TestCaseUtils.addEntry(entry);
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return entry;
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}
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/**
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* Tests for issue 3891
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* S1 S2
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* ADD uid=xx,ou=parent,... [SUBTREE] DEL ou=parent, ...
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*
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* 1/ removeParentConflict1 (on S1)
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* - t1(csn1) ADD uid=xx,ou=parent,...
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* - t2(csn2) replay SUBTREE DEL ou=parent, ....
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* => No conflict : expect the parent entry & subtree to be deleted
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*
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* 2/ removeParentConflict2 (on S1)
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* - t1(csn1) ADD uid=xx,ou=parent,...
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* - replay t2(csn2) DEL ou=parent, ....
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* => Conflict and no automatic resolution: expect
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* - the child entry to be renamed under root entry
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* - the parent entry to be deleted
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*
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* 3/ removeParentConflict3 (on S2)
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* - t2(csn2) DEL or SUBTREE DEL ou=parent, ....
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* - t1(csn1) replay ADD uid=xx,ou=parent,...
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* => Conflict and no automatic resolution: expect
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* - the child entry to be renamed under root entry
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*
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*/
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@Test
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public void removeParentConflict1() throws Exception
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{
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Entry parentEntry = createParentEntry();
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Entry childEntry = createChildEntry();
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TestCaseUtils.addEntry(parentEntry);
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TestCaseUtils.addEntry(childEntry);
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String parentUUID = getEntryUUID(parentEntry.getName());
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CSN csn2 = gen.newCSN();
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DeleteMsg delMsg = new DeleteMsg(parentEntry.getName(), csn2, parentUUID);
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delMsg.setSubtreeDelete(true);
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replayMsg(delMsg);
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// Expect the subtree to be deleted and no conflict entry created
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assertFalse(entryExists(parentEntry.getName()), "DEL subtree on parent was not processed as expected.");
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assertFalse(entryExists(parentEntry.getName()), "DEL subtree on parent was not processed as expected.");
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}
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@Test
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public void removeParentConflict2() throws Exception
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{
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Entry parentEntry = createParentEntry();
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Entry childEntry = createChildEntry();
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TestCaseUtils.addEntry(parentEntry);
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TestCaseUtils.addEntry(childEntry);
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String parentUUID = getEntryUUID(parentEntry.getName());
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String childUUID = getEntryUUID(childEntry.getName());
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CSN csn2 = gen.newCSN();
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DeleteMsg delMsg = new DeleteMsg(parentEntry.getName(), csn2, parentUUID);
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// NOT SUBTREE
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replayMsg(delMsg);
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// Expect the parent entry to be deleted
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assertFalse(entryExists(parentEntry.getName()), "Parent entry expected to be deleted : " + parentEntry.getName());
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// Expect the child entry to be moved as conflict entry under the root
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// entry of the suffix
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DN childDN = DN.valueOf("entryuuid=" + childUUID + "+cn=child,o=test");
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assertTrue(entryExists(childDN), "Child entry conflict exist with DN=" + childDN);
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}
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@Test
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public void removeParentConflict3() throws Exception
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{
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Entry parentEntry = createParentEntry();
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Entry childEntry = createChildEntry();
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TestCaseUtils.addEntry(parentEntry);
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String parentUUID = getEntryUUID(parentEntry.getName());
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TestCaseUtils.deleteEntry(parentEntry);
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CSN csn1 = gen.newCSN();
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// Create and publish an update message to add the child entry.
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String childUUID = "44444444-4444-4444-4444-444444444444";
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AddMsg addMsg = new AddMsg(
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csn1,
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childEntry.getName(),
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childUUID,
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parentUUID,
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childEntry.getObjectClassAttribute(),
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childEntry.getAttributes(),
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new ArrayList<Attribute>());
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// Put the message in the replay queue
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replayMsg(addMsg);
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// Expect the parent entry to be deleted
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assertFalse(entryExists(parentEntry.getName()), "Parent entry exists ");
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// Expect the child entry to be moved as conflict entry under the root
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// entry of the suffix
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DN childDN = DN.valueOf("entryuuid=" + childUUID + "+cn=child,o=test");
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assertTrue(entryExists(childDN), "Child entry conflict exist with DN=" + childDN);
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}
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private Entry createParentEntry() throws Exception
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{
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return TestCaseUtils.entryFromLdifString(
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"dn: ou=rpConflict, "+ TEST_ROOT_DN_STRING + "\n"
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+ "objectClass: top\n"
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+ "objectClass: organizationalUnit\n");
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}
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private Entry createChildEntry() throws Exception
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{
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return TestCaseUtils.entryFromLdifString(
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"dn: cn=child, ou=rpConflict,"+ TEST_ROOT_DN_STRING + "\n"
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+ "objectClass: top\n"
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+ "objectClass: person\n"
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+ "objectClass: organizationalPerson\n"
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+ "objectClass: inetOrgPerson\n"
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+ "uid: user.1\n"
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+ "description: This is the description for Aaccf Amar.\n"
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+ "st: NC\n"
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+ "postalAddress: Aaccf Amar$17984 Thirteenth Street"
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+ "$Rockford, NC 85762\n"
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+ "mail: user.1@example.com\n"
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+ "cn: Aaccf Amar\n"
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+ "l: Rockford\n"
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+ "street: 17984 Thirteenth Street\n"
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+ "employeeNumber: 1\n"
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+ "sn: Amar\n"
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+ "givenName: Aaccf\n"
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+ "postalCode: 85762\n"
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+ "userPassword: password\n"
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+ "initials: AA\n");
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}
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private void replayMsg(UpdateMsg updateMsg) throws InterruptedException
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{
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domain.processUpdate(updateMsg);
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LDAPUpdateMsg ldapUpdate = queue.take().getUpdateMessage();
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domain.markInProgress(ldapUpdate);
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domain.replay(ldapUpdate, SHUTDOWN);
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}
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}
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