/*
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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
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* trunk/opends/resource/legal-notices/OpenDS.LICENSE
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* or https://OpenDS.dev.java.net/OpenDS.LICENSE.
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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
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* trunk/opends/resource/legal-notices/OpenDS.LICENSE. If applicable,
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* add the following below this CDDL HEADER, with the fields enclosed
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* by brackets "[]" replaced with your own identifying 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 2008-2009 Sun Microsystems, Inc.
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*/
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package org.opends.server.workflowelement.ndb;
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import com.mysql.cluster.ndbj.NdbOperation;
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import java.util.List;
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import org.opends.messages.Message;
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import org.opends.server.api.Backend;
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import org.opends.server.api.ChangeNotificationListener;
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import org.opends.server.api.plugin.PluginResult;
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import org.opends.server.backends.ndb.AbstractTransaction;
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import org.opends.server.backends.ndb.BackendImpl;
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import org.opends.server.core.AccessControlConfigManager;
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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.core.PluginConfigManager;
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import org.opends.server.loggers.debug.DebugTracer;
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import org.opends.server.types.CanceledOperationException;
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import org.opends.server.types.DebugLogLevel;
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import org.opends.server.types.DirectoryException;
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import org.opends.server.types.DN;
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import org.opends.server.types.Modification;
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import org.opends.server.types.ResultCode;
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import org.opends.server.types.operation.PostOperationModifyDNOperation;
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import org.opends.server.types.operation.PostResponseModifyDNOperation;
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import org.opends.server.types.operation.PreOperationModifyDNOperation;
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import org.opends.server.types.operation.PostSynchronizationModifyDNOperation;
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import
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org.opends.server.workflowelement.localbackend.LocalBackendModifyDNOperation;
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import
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org.opends.server.workflowelement.localbackend.LocalBackendWorkflowElement;
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import static org.opends.messages.CoreMessages.*;
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import static org.opends.server.loggers.ErrorLogger.*;
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import static org.opends.server.loggers.debug.DebugLogger.*;
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import static org.opends.server.util.StaticUtils.*;
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/**
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* This class defines an operation used to move an entry in a NDB backend
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* of the Directory Server.
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*/
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public class NDBModifyDNOperation
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extends LocalBackendModifyDNOperation
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implements PreOperationModifyDNOperation,
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PostOperationModifyDNOperation,
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PostResponseModifyDNOperation,
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PostSynchronizationModifyDNOperation
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{
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/**
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* The tracer object for the debug logger.
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*/
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private static final DebugTracer TRACER = getTracer();
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/**
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* Creates a new operation that may be used to move an entry in a
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* NDB backend of the Directory Server.
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*
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* @param operation The operation to enhance.
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*/
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public NDBModifyDNOperation (ModifyDNOperation operation)
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{
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super(operation);
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NDBWorkflowElement.attachLocalOperation (operation, this);
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}
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/**
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* Process this modify DN operation in a NDB backend.
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*
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* @param wfe The local backend work-flow element.
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*
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* @throws CanceledOperationException if this operation should be
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* cancelled
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*/
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@Override
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public void processLocalModifyDN(final LocalBackendWorkflowElement wfe)
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throws CanceledOperationException {
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boolean executePostOpPlugins = false;
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this.backend = wfe.getBackend();
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BackendImpl ndbBackend = (BackendImpl) backend;
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clientConnection = getClientConnection();
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// Get the plugin config manager that will be used for invoking plugins.
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PluginConfigManager pluginConfigManager =
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DirectoryServer.getPluginConfigManager();
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// Check for a request to cancel this operation.
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checkIfCanceled(false);
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// Create a labeled block of code that we can break out of if a problem is
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// detected.
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modifyDNProcessing:
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{
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// Process the entry DN, newRDN, and newSuperior elements from their raw
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// forms as provided by the client to the forms required for the rest of
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// the modify DN processing.
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entryDN = getEntryDN();
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newRDN = getNewRDN();
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if (newRDN == null)
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{
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break modifyDNProcessing;
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}
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DN newSuperior = getNewSuperior();
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if ((newSuperior == null) &&
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(getRawNewSuperior() != null))
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{
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break modifyDNProcessing;
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}
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// Construct the new DN to use for the entry.
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DN parentDN;
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if (newSuperior == null)
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{
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parentDN = entryDN.getParentDNInSuffix();
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}
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else
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{
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if(newSuperior.isDescendantOf(entryDN))
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{
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setResultCode(ResultCode.UNWILLING_TO_PERFORM);
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appendErrorMessage(ERR_MODDN_NEW_SUPERIOR_IN_SUBTREE.get(
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String.valueOf(entryDN), String.valueOf(newSuperior)));
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break modifyDNProcessing;
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}
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parentDN = newSuperior;
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}
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if ((parentDN == null) || parentDN.isNullDN())
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{
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setResultCode(ResultCode.UNWILLING_TO_PERFORM);
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appendErrorMessage(ERR_MODDN_NO_PARENT.get(String.valueOf(entryDN)));
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break modifyDNProcessing;
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}
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DN newDN = parentDN.concat(newRDN);
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// Get the backend for the current entry, and the backend for the new
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// entry. If either is null, or if they are different, then fail.
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Backend currentBackend = backend;
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if (currentBackend == null)
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{
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setResultCode(ResultCode.NO_SUCH_OBJECT);
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appendErrorMessage(ERR_MODDN_NO_BACKEND_FOR_CURRENT_ENTRY.get(
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String.valueOf(entryDN)));
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break modifyDNProcessing;
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}
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Backend newBackend = DirectoryServer.getBackend(newDN);
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if (newBackend == null)
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{
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setResultCode(ResultCode.NO_SUCH_OBJECT);
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appendErrorMessage(ERR_MODDN_NO_BACKEND_FOR_NEW_ENTRY.get(
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String.valueOf(entryDN),
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String.valueOf(newDN)));
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break modifyDNProcessing;
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}
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else if (! currentBackend.equals(newBackend))
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{
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setResultCode(ResultCode.UNWILLING_TO_PERFORM);
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appendErrorMessage(ERR_MODDN_DIFFERENT_BACKENDS.get(
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String.valueOf(entryDN),
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String.valueOf(newDN)));
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break modifyDNProcessing;
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}
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// Check for a request to cancel this operation.
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checkIfCanceled(false);
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AbstractTransaction txn =
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new AbstractTransaction(ndbBackend.getRootContainer());
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try
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{
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// Get the current entry from the appropriate backend. If it doesn't
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// exist, then fail.
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try
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{
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currentEntry = ndbBackend.getEntryNoCommit(entryDN, txn,
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NdbOperation.LockMode.LM_Exclusive);
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}
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catch (DirectoryException de)
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{
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if (debugEnabled())
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{
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TRACER.debugCaught(DebugLogLevel.ERROR, de);
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}
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setResponseData(de);
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break modifyDNProcessing;
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}
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if (getOriginalEntry() == null)
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{
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// See if one of the entry's ancestors exists.
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parentDN = entryDN.getParentDNInSuffix();
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while (parentDN != null)
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{
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try
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{
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if (DirectoryServer.entryExists(parentDN))
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{
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setMatchedDN(parentDN);
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break;
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}
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}
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catch (Exception e)
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{
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if (debugEnabled())
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{
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TRACER.debugCaught(DebugLogLevel.ERROR, e);
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}
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break;
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}
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parentDN = parentDN.getParentDNInSuffix();
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}
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setResultCode(ResultCode.NO_SUCH_OBJECT);
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appendErrorMessage(ERR_MODDN_NO_CURRENT_ENTRY.get(
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String.valueOf(entryDN)));
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break modifyDNProcessing;
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}
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if(!handleConflictResolution()) {
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break modifyDNProcessing;
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}
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// Check to see if there are any controls in the request. If so, then
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// see if there is any special processing required.
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try
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{
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handleRequestControls();
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}
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catch (DirectoryException de)
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{
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if (debugEnabled())
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{
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TRACER.debugCaught(DebugLogLevel.ERROR, de);
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}
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setResponseData(de);
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break modifyDNProcessing;
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}
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// Check to see if the client has permission to perform the
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// modify DN.
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// FIXME: for now assume that this will check all permission
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// pertinent to the operation. This includes proxy authorization
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// and any other controls specified.
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// FIXME: earlier checks to see if the entry or new superior
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// already exists may have already exposed sensitive information
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// to the client.
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try
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{
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if (!AccessControlConfigManager.getInstance()
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.getAccessControlHandler().isAllowed(this))
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{
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setResultCode(ResultCode.INSUFFICIENT_ACCESS_RIGHTS);
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appendErrorMessage(ERR_MODDN_AUTHZ_INSUFFICIENT_ACCESS_RIGHTS
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.get(String.valueOf(entryDN)));
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break modifyDNProcessing;
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}
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}
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catch (DirectoryException e)
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{
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setResultCode(e.getResultCode());
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appendErrorMessage(e.getMessageObject());
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break modifyDNProcessing;
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}
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// Duplicate the entry and set its new DN. Also, create an empty list
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// to hold the attribute-level modifications.
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newEntry = currentEntry.duplicate(false);
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newEntry.setDN(newDN);
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// init the modifications
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addModification(null);
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List<Modification> modifications = this.getModifications();
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// Apply any changes to the entry based on the change in its RDN. Also,
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// perform schema checking on the updated entry.
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try
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{
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applyRDNChanges(modifications);
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}
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catch (DirectoryException de)
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{
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if (debugEnabled())
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{
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TRACER.debugCaught(DebugLogLevel.ERROR, de);
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}
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setResponseData(de);
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break modifyDNProcessing;
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}
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// Check for a request to cancel this operation.
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checkIfCanceled(false);
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// Get a count of the current number of modifications. The
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// pre-operation plugins may alter this list, and we need to be able to
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// identify which changes were made after they're done.
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int modCount = modifications.size();
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// If the operation is not a synchronization operation,
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// Invoke the pre-operation modify DN plugins.
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if (! isSynchronizationOperation())
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{
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executePostOpPlugins = true;
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PluginResult.PreOperation preOpResult =
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pluginConfigManager.invokePreOperationModifyDNPlugins(this);
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if (!preOpResult.continueProcessing())
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{
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setResultCode(preOpResult.getResultCode());
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appendErrorMessage(preOpResult.getErrorMessage());
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setMatchedDN(preOpResult.getMatchedDN());
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setReferralURLs(preOpResult.getReferralURLs());
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break modifyDNProcessing;
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}
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}
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// Check to see if any of the pre-operation plugins made any changes to
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// the entry. If so, then apply them.
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if (modifications.size() > modCount)
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{
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try
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{
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applyPreOpModifications(modifications, modCount);
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}
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catch (DirectoryException de)
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{
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if (debugEnabled())
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{
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TRACER.debugCaught(DebugLogLevel.ERROR, de);
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}
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setResponseData(de);
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break modifyDNProcessing;
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}
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}
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// Actually perform the modify DN operation.
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// This should include taking
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// care of any synchronization that might be needed.
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try
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{
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// If it is not a private backend, then check to see if the server or
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// backend is operating in read-only mode.
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if (! currentBackend.isPrivateBackend())
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{
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switch (DirectoryServer.getWritabilityMode())
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{
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case DISABLED:
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setResultCode(ResultCode.UNWILLING_TO_PERFORM);
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appendErrorMessage(ERR_MODDN_SERVER_READONLY.get(
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String.valueOf(entryDN)));
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break modifyDNProcessing;
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case INTERNAL_ONLY:
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if (! (isInternalOperation() || isSynchronizationOperation()))
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{
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setResultCode(ResultCode.UNWILLING_TO_PERFORM);
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appendErrorMessage(ERR_MODDN_SERVER_READONLY.get(
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String.valueOf(entryDN)));
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break modifyDNProcessing;
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}
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}
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switch (currentBackend.getWritabilityMode())
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{
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case DISABLED:
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setResultCode(ResultCode.UNWILLING_TO_PERFORM);
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appendErrorMessage(ERR_MODDN_BACKEND_READONLY.get(
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String.valueOf(entryDN)));
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break modifyDNProcessing;
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case INTERNAL_ONLY:
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if (! (isInternalOperation() || isSynchronizationOperation()))
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{
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setResultCode(ResultCode.UNWILLING_TO_PERFORM);
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appendErrorMessage(ERR_MODDN_BACKEND_READONLY.get(
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String.valueOf(entryDN)));
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break modifyDNProcessing;
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}
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}
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}
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if (noOp)
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{
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appendErrorMessage(INFO_MODDN_NOOP.get());
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setResultCode(ResultCode.NO_OPERATION);
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}
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else
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{
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if(!processPreOperation()) {
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break modifyDNProcessing;
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}
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ndbBackend.renameEntry(entryDN, newEntry, this, txn);
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}
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// Attach the pre-read and/or post-read controls to the response if
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// appropriate.
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processReadEntryControls();
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if (! noOp)
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{
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setResultCode(ResultCode.SUCCESS);
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}
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}
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catch (DirectoryException de)
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{
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if (debugEnabled())
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{
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TRACER.debugCaught(DebugLogLevel.ERROR, de);
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}
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setResponseData(de);
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break modifyDNProcessing;
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}
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}
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finally
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{
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processSynchPostOperationPlugins();
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try {
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txn.close();
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} catch (Exception ex) {
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if (debugEnabled()) {
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TRACER.debugCaught(DebugLogLevel.ERROR, ex);
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}
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}
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}
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}
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// Invoke the post-operation or post-synchronization modify DN plugins.
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if (isSynchronizationOperation())
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{
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if (getResultCode() == ResultCode.SUCCESS)
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{
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pluginConfigManager.invokePostSynchronizationModifyDNPlugins(this);
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}
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}
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else if (executePostOpPlugins)
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{
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PluginResult.PostOperation postOpResult =
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pluginConfigManager.invokePostOperationModifyDNPlugins(this);
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if (!postOpResult.continueProcessing())
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{
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setResultCode(postOpResult.getResultCode());
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appendErrorMessage(postOpResult.getErrorMessage());
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setMatchedDN(postOpResult.getMatchedDN());
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setReferralURLs(postOpResult.getReferralURLs());
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return;
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}
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}
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// Register a post-response call-back which will notify persistent
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// searches and change listeners.
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if (getResultCode() == ResultCode.SUCCESS)
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{
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registerPostResponseCallback(new Runnable()
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{
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public void run()
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{
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// Notify change listeners.
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for (ChangeNotificationListener changeListener : DirectoryServer
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.getChangeNotificationListeners())
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{
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try
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{
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changeListener.handleModifyDNOperation(
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NDBModifyDNOperation.this, currentEntry, newEntry);
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}
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catch (Exception e)
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{
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if (debugEnabled())
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{
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TRACER.debugCaught(DebugLogLevel.ERROR, e);
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}
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Message message = ERR_MODDN_ERROR_NOTIFYING_CHANGE_LISTENER
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.get(getExceptionMessage(e));
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logError(message);
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}
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}
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}
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});
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}
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}
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}
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