/*
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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 2006-2009 Sun Microsystems, Inc.
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*/
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package org.opends.server.tasks;
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import org.opends.messages.Message;
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import org.opends.messages.TaskMessages;
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import org.opends.server.backends.task.Task;
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import org.opends.server.backends.task.TaskState;
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import org.opends.server.backends.jeb.RebuildConfig;
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import org.opends.server.backends.jeb.BackendImpl;
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import org.opends.server.types.Attribute;
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import org.opends.server.types.AttributeType;
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import org.opends.server.types.DN;
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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.Entry;
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import org.opends.server.types.Operation;
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import org.opends.server.types.Privilege;
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import org.opends.server.types.ResultCode;
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import org.opends.server.core.DirectoryServer;
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import org.opends.server.core.LockFileManager;
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import org.opends.server.api.ClientConnection;
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import org.opends.server.api.Backend;
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import static org.opends.server.core.DirectoryServer.getAttributeType;
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import static org.opends.server.util.StaticUtils.*;
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import static org.opends.server.loggers.debug.DebugLogger.*;
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import org.opends.server.loggers.debug.DebugTracer;
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import static org.opends.messages.TaskMessages.*;
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import static org.opends.messages.ToolMessages.*;
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import static org.opends.server.config.ConfigConstants.*;
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import java.util.List;
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import java.util.ArrayList;
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/**
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* This class provides an implementation of a Directory Server task that can
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* be used to rebuild indexes in the JEB backend..
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*/
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public class RebuildTask extends Task
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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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String baseDN = null;
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ArrayList<String> indexes = null;
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private String tmpDirectory = null;
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private boolean rebuildAll = false;
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/**
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* {@inheritDoc}
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*/
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public Message getDisplayName() {
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return TaskMessages.INFO_TASK_REBUILD_NAME.get();
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}
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/**
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* {@inheritDoc}
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*/
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@Override public void initializeTask() throws DirectoryException
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{
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// If the client connection is available, then make sure the associated
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// client has the INDEX_REBUILD privilege.
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Operation operation = getOperation();
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if (operation != null)
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{
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ClientConnection clientConnection = operation.getClientConnection();
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if (! clientConnection.hasPrivilege(Privilege.LDIF_IMPORT, operation))
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{
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Message message = ERR_TASK_INDEXREBUILD_INSUFFICIENT_PRIVILEGES.get();
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throw new DirectoryException(ResultCode.INSUFFICIENT_ACCESS_RIGHTS,
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message);
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}
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}
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Entry taskEntry = getTaskEntry();
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AttributeType typeBaseDN;
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AttributeType typeIndex;
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AttributeType typeTmpDirectory;
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typeBaseDN =
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getAttributeType(ATTR_REBUILD_BASE_DN, true);
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typeIndex =
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getAttributeType(ATTR_REBUILD_INDEX, true);
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typeTmpDirectory =
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getAttributeType(ATTR_REBUILD_TMP_DIRECTORY, true);
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List<Attribute> attrList;
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attrList = taskEntry.getAttribute(typeBaseDN);
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baseDN = TaskUtils.getSingleValueString(attrList);
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attrList = taskEntry.getAttribute(typeIndex);
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indexes = TaskUtils.getMultiValueString(attrList);
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if(isRebuildAll(indexes))
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{
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if(indexes.size() != 1)
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{
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Message msg = ERR_TASK_INDEXREBUILD_ALL_ERROR.get();
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throw new DirectoryException(ResultCode.UNWILLING_TO_PERFORM, msg);
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}
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rebuildAll = true;
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indexes.clear();
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}
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attrList = taskEntry.getAttribute(typeTmpDirectory);
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tmpDirectory = TaskUtils.getSingleValueString(attrList);
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}
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private boolean isRebuildAll(List<String> indexList)
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{
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for(String s : indexList)
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{
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if(s.equalsIgnoreCase(REBUILD_ALL))
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{
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return true;
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}
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}
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return false;
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}
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/**
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* {@inheritDoc}
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*/
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protected TaskState runTask()
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{
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RebuildConfig rebuildConfig = new RebuildConfig();
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try
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{
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rebuildConfig.setBaseDN(DN.decode(baseDN));
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}
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catch(DirectoryException de)
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{
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Message message =
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ERR_CANNOT_DECODE_BASE_DN.get(baseDN, de.getMessageObject());
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logError(message);
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return TaskState.STOPPED_BY_ERROR;
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}
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for(String index : indexes)
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{
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rebuildConfig.addRebuildIndex(index);
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}
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Backend backend =
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DirectoryServer.getBackendWithBaseDN(rebuildConfig.getBaseDN());
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if(backend == null)
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{
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Message message = ERR_NO_BACKENDS_FOR_BASE.get(baseDN);
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logError(message);
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return TaskState.STOPPED_BY_ERROR;
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}
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if (!(backend instanceof BackendImpl))
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{
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Message message = ERR_REBUILDINDEX_WRONG_BACKEND_TYPE.get();
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logError(message);
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return TaskState.STOPPED_BY_ERROR;
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}
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// Acquire a shared lock for the backend if we are rebuilding attribute
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// indexes only. If we are rebuilding one or more system indexes, we have
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// to aquire exclusive lock.
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String lockFile = LockFileManager.getBackendLockFileName(backend);
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StringBuilder failureReason = new StringBuilder();
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// Disable the backend.
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try
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{
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TaskUtils.disableBackend(backend.getBackendID());
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}
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catch (DirectoryException 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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logError(e.getMessageObject());
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return TaskState.STOPPED_BY_ERROR;
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}
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try
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{
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if(! LockFileManager.acquireExclusiveLock(lockFile, failureReason))
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{
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Message message = ERR_REBUILDINDEX_CANNOT_EXCLUSIVE_LOCK_BACKEND.get(
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backend.getBackendID(), String.valueOf(failureReason));
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logError(message);
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return TaskState.STOPPED_BY_ERROR;
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}
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}
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catch (Exception e)
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{
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Message message = ERR_REBUILDINDEX_CANNOT_EXCLUSIVE_LOCK_BACKEND.get(
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backend.getBackendID(), getExceptionMessage(e));
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logError(message);
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return TaskState.STOPPED_BY_ERROR;
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}
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if(tmpDirectory == null)
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{
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tmpDirectory = "import-tmp";
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}
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rebuildConfig.setTmpDirectory(tmpDirectory);
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rebuildConfig.setRebuildAll(rebuildAll);
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TaskState returnCode = TaskState.COMPLETED_SUCCESSFULLY;
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// Launch the rebuild process.
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try
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{
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BackendImpl jebBackend = (BackendImpl)backend;
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jebBackend.rebuildBackend(rebuildConfig);
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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 =
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ERR_REBUILDINDEX_ERROR_DURING_REBUILD.get(e.getMessage());
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logError(message);
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returnCode = TaskState.STOPPED_BY_ERROR;
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}
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// Release the lock on the backend.
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finally
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{
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try
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{
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lockFile = LockFileManager.getBackendLockFileName(backend);
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failureReason = new StringBuilder();
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if (! LockFileManager.releaseLock(lockFile, failureReason))
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{
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Message message = WARN_REBUILDINDEX_CANNOT_UNLOCK_BACKEND.get(
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backend.getBackendID(), String.valueOf(failureReason));
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logError(message);
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returnCode = TaskState.COMPLETED_WITH_ERRORS;
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}
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}
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catch (Throwable t)
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{
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Message message = WARN_REBUILDINDEX_CANNOT_UNLOCK_BACKEND.get(
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backend.getBackendID(), getExceptionMessage(t));
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logError(message);
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returnCode = TaskState.COMPLETED_WITH_ERRORS;
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}
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}
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if(returnCode == TaskState.COMPLETED_SUCCESSFULLY)
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{
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// Enable the backend.
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try
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{
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TaskUtils.enableBackend(backend.getBackendID());
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}
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catch (DirectoryException 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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logError(e.getMessageObject());
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returnCode = TaskState.STOPPED_BY_ERROR;
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}
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}
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return returnCode;
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}
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}
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