/*
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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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* 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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* 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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* Portions Copyright 2006-2007 Sun Microsystems, Inc.
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*/
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package org.opends.server.backends.jeb;
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import org.opends.messages.Message;
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import java.io.IOException;
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import java.io.File;
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import java.util.concurrent.atomic.AtomicInteger;
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import java.io.FileInputStream;
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import java.io.FilenameFilter;
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import java.util.*;
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import java.util.zip.Adler32;
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import java.util.zip.CheckedInputStream;
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import com.sleepycat.je.DatabaseException;
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import com.sleepycat.je.EnvironmentConfig;
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import com.sleepycat.je.RunRecoveryException;
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import org.opends.server.admin.std.server.MonitorProviderCfg;
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import org.opends.server.api.Backend;
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import org.opends.server.api.MonitorProvider;
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import org.opends.server.api.AlertGenerator;
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import org.opends.server.config.ConfigException;
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import org.opends.server.core.AddOperation;
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import org.opends.server.core.DeleteOperation;
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import org.opends.server.core.DirectoryServer;
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import org.opends.server.core.ModifyOperation;
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import org.opends.server.core.ModifyDNOperation;
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import org.opends.server.core.SearchOperation;
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import org.opends.server.util.LDIFException;
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import org.opends.server.util.Validator;
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import static org.opends.server.util.StaticUtils.*;
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import static org.opends.messages.BackendMessages.*;
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import static org.opends.messages.JebMessages.*;
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import static org.opends.server.loggers.ErrorLogger.logError;
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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 org.opends.server.types.*;
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import static org.opends.server.util.ServerConstants.*;
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import org.opends.server.admin.std.server.JEBackendCfg;
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import org.opends.server.admin.Configuration;
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import org.opends.server.admin.server.ConfigurationChangeListener;
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/**
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* This is an implementation of a Directory Server Backend which stores entries
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* locally in a Berkeley DB JE database.
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*/
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public class BackendImpl
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extends Backend
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implements ConfigurationChangeListener<JEBackendCfg>, AlertGenerator
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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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* The fully-qualified name of this class.
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*/
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private static final String CLASS_NAME =
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"org.opends.server.backends.jeb.BackendImpl";
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/**
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* The configuration of this JE backend.
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*/
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private JEBackendCfg cfg;
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/**
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* The root JE container to use for this backend.
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*/
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private RootContainer rootContainer;
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/**
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* A count of the total operation threads currently in the backend.
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*/
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private AtomicInteger threadTotalCount = new AtomicInteger(0);
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/**
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* A count of the write operation threads currently in the backend.
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*/
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private AtomicInteger threadWriteCount = new AtomicInteger(0);
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/**
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* A list of monitor providers created for this backend instance.
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*/
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private ArrayList<MonitorProvider> monitorProviders =
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new ArrayList<MonitorProvider>();
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/**
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* The controls supported by this backend.
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*/
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private static HashSet<String> supportedControls;
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static
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{
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// Set our supported controls.
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supportedControls = new HashSet<String>();
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supportedControls.add(OID_SUBTREE_DELETE_CONTROL);
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supportedControls.add(OID_PAGED_RESULTS_CONTROL);
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supportedControls.add(OID_MANAGE_DSAIT_CONTROL);
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supportedControls.add(OID_SERVER_SIDE_SORT_REQUEST_CONTROL);
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supportedControls.add(OID_VLV_REQUEST_CONTROL);
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}
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/**
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* Begin a Backend API method that reads the database.
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*/
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private void readerBegin()
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{
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threadTotalCount.getAndIncrement();
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}
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/**
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* End a Backend API method that reads the database.
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*/
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private void readerEnd()
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{
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threadTotalCount.getAndDecrement();
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}
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/**
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* Begin a Backend API method that writes the database.
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*/
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private void writerBegin()
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{
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threadTotalCount.getAndIncrement();
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threadWriteCount.getAndIncrement();
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}
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/**
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* End a Backend API method that writes the database.
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*/
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private void writerEnd()
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{
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threadWriteCount.getAndDecrement();
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threadTotalCount.getAndDecrement();
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}
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/**
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* Wait until there are no more threads accessing the database. It is assumed
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* that new threads have been prevented from entering the database at the time
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* this method is called.
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*/
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private void waitUntilQuiescent()
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{
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while (threadTotalCount.get() > 0)
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{
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// Still have threads in the database so sleep a little
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try
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{
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Thread.sleep(500);
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}
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catch (InterruptedException 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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}
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}
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}
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/**
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* This method will attempt to checksum the current JE db environment by
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* computing the Adler-32 checksum on the latest JE log file available.
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*
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* @return The checksum of JE db environment or zero if checksum failed.
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*/
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private long checksumDbEnv() {
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File backendDirectory = getFileForPath(cfg.getBackendDirectory());
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List<File> jdbFiles = new ArrayList<File>();
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if(backendDirectory.isDirectory())
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{
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jdbFiles =
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Arrays.asList(backendDirectory.listFiles(new FilenameFilter() {
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public boolean accept(File dir, String name) {
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return name.endsWith(".jdb");
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}
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}));
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}
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if ( !jdbFiles.isEmpty() ) {
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Collections.sort(jdbFiles, Collections.reverseOrder());
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FileInputStream fis = null;
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try {
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fis = new FileInputStream(jdbFiles.get(0).toString());
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CheckedInputStream cis = new CheckedInputStream(fis, new Adler32());
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byte[] tempBuf = new byte[8192];
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while (cis.read(tempBuf) >= 0) {
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}
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return cis.getChecksum().getValue();
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} catch (Exception e) {
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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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} finally {
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if (fis != null) {
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try {
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fis.close();
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} catch (Exception e) {
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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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}
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}
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}
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}
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return 0;
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}
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/**
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* This method constructs a container name from a base DN. Only alphanumeric
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* characters are preserved, all other characters are replaced with an
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* underscore.
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*
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* @param dn The base DN.
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* @return The container name for the base DN.
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*/
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public static String getContainerName(DN dn)
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{
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String normStr = dn.toNormalizedString();
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StringBuilder builder = new StringBuilder(normStr.length());
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for (int i = 0; i < normStr.length(); i++)
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{
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char ch = normStr.charAt(i);
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if (Character.isLetterOrDigit(ch))
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{
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builder.append(ch);
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}
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else
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{
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builder.append('_');
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}
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}
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return builder.toString();
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}
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/**
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* {@inheritDoc}
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*/
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public void configureBackend(Configuration cfg)
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throws ConfigException
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{
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Validator.ensureNotNull(cfg);
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Validator.ensureTrue(cfg instanceof JEBackendCfg);
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this.cfg = (JEBackendCfg)cfg;
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}
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/**
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* {@inheritDoc}
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*/
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public void initializeBackend()
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throws ConfigException, InitializationException
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{
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// Checksum this db environment and register its offline state id/checksum.
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DirectoryServer.registerOfflineBackendStateID(this.getBackendID(),
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checksumDbEnv());
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if(rootContainer == null)
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{
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EnvironmentConfig envConfig =
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ConfigurableEnvironment.parseConfigEntry(cfg);
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rootContainer = initializeRootContainer(envConfig);
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}
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// Preload the database cache.
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rootContainer.preload(cfg.getBackendPreloadTimeLimit());
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try
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{
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// Log an informational message about the number of entries.
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Message message = NOTE_JEB_BACKEND_STARTED.get(
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cfg.getBackendId(), rootContainer.getEntryCount());
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logError(message);
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}
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catch(DatabaseException databaseException)
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{
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if (debugEnabled())
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{
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TRACER.debugCaught(DebugLogLevel.ERROR, databaseException);
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}
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Message message =
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WARN_JEB_GET_ENTRY_COUNT_FAILED.get(databaseException.getMessage());
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throw new InitializationException(
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message, databaseException);
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}
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for (DN dn : cfg.getBackendBaseDN())
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{
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try
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{
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DirectoryServer.registerBaseDN(dn, this, false);
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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_BACKEND_CANNOT_REGISTER_BASEDN.get(
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String.valueOf(dn), String.valueOf(e));
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throw new InitializationException(message, e);
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}
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}
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// Register a monitor provider for the environment.
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MonitorProvider<? extends MonitorProviderCfg> monitorProvider =
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rootContainer.getMonitorProvider();
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monitorProviders.add(monitorProvider);
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DirectoryServer.registerMonitorProvider(monitorProvider);
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//Register as an AlertGenerator.
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DirectoryServer.registerAlertGenerator(this);
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// Register this backend as a change listener.
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cfg.addJEChangeListener(this);
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}
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/**
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* Performs any necessary work to finalize this backend, including closing any
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* underlying databases or connections and deregistering any suffixes that it
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* manages with the Directory Server. This may be called during the Directory
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* Server shutdown process or if a backend is disabled with the server online.
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* It must not return until the backend is closed. <BR><BR> This method may
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* not throw any exceptions. If any problems are encountered, then they may
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* be logged but the closure should progress as completely as possible.
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*/
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public void finalizeBackend()
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{
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// Deregister as a change listener.
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cfg.removeJEChangeListener(this);
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// Deregister our base DNs.
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for (DN dn : rootContainer.getBaseDNs())
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{
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try
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{
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DirectoryServer.deregisterBaseDN(dn);
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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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}
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}
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// Deregister our monitor providers.
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for (MonitorProvider monitor : monitorProviders)
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{
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DirectoryServer.deregisterMonitorProvider(
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monitor.getMonitorInstanceName().toLowerCase());
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}
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monitorProviders = new ArrayList<MonitorProvider>();
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// We presume the server will prevent more operations coming into this
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// backend, but there may be existing operations already in the
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// backend. We need to wait for them to finish.
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waitUntilQuiescent();
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// Close the database.
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try
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{
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rootContainer.close();
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rootContainer = null;
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}
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catch (DatabaseException 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_JEB_DATABASE_EXCEPTION.get(e.getMessage());
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logError(message);
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}
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// Checksum this db environment and register its offline state id/checksum.
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DirectoryServer.registerOfflineBackendStateID(this.getBackendID(),
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checksumDbEnv());
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//Deregister the alert generator.
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DirectoryServer.deregisterAlertGenerator(this);
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// Make sure the thread counts are zero for next initialization.
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threadTotalCount.set(0);
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threadWriteCount.set(0);
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}
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/**
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* Indicates whether the data associated with this backend may be considered
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* local (i.e., in a repository managed by the Directory Server) rather than
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* remote (i.e., in an external repository accessed by the Directory Server
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* but managed through some other means).
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*
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* @return <CODE>true</CODE> if the data associated with this backend may be
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* considered local, or <CODE>false</CODE> if it is remote.
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*/
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public boolean isLocal()
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{
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return true;
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}
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/**
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* Indicates whether this backend provides a mechanism to export the data it
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* contains to an LDIF file.
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*
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* @return <CODE>true</CODE> if this backend provides an LDIF export
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* mechanism, or <CODE>false</CODE> if not.
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*/
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public boolean supportsLDIFExport()
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{
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return true;
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}
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/**
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* Indicates whether this backend provides a mechanism to import its data from
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* an LDIF file.
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*
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* @return <CODE>true</CODE> if this backend provides an LDIF import
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* mechanism, or <CODE>false</CODE> if not.
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*/
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public boolean supportsLDIFImport()
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{
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return true;
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}
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|
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/**
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* Indicates whether this backend provides a backup mechanism of any kind.
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* This method is used by the backup process when backing up all backends to
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* determine whether this backend is one that should be skipped. It should
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* only return <CODE>true</CODE> for backends that it is not possible to
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* archive directly (e.g., those that don't store their data locally, but
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* rather pass through requests to some other repository).
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*
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* @return <CODE>true</CODE> if this backend provides any kind of backup
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* mechanism, or <CODE>false</CODE> if it does not.
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*/
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public boolean supportsBackup()
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{
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return true;
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}
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|
|
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/**
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* Indicates whether this backend provides a mechanism to perform a backup of
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* its contents in a form that can be restored later, based on the provided
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* configuration.
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*
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* @param backupConfig The configuration of the backup for which to make
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* the determination.
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* @param unsupportedReason A buffer to which a message can be appended
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* explaining why the requested backup is not
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* supported.
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* @return <CODE>true</CODE> if this backend provides a mechanism for
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* performing backups with the provided configuration, or
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* <CODE>false</CODE> if not.
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*/
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public boolean supportsBackup(BackupConfig backupConfig,
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StringBuilder unsupportedReason)
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{
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return true;
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}
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|
|
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/**
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* Indicates whether this backend provides a mechanism to restore a backup.
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*
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* @return <CODE>true</CODE> if this backend provides a mechanism for
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* restoring backups, or <CODE>false</CODE> if not.
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*/
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public boolean supportsRestore()
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{
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return true;
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}
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|
|
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/**
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* Retrieves the OIDs of the features that may be supported by this backend.
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*
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* @return The OIDs of the features that may be supported by this backend.
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*/
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public HashSet<String> getSupportedFeatures()
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{
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return new HashSet<String>(); //NYI
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}
|
|
|
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/**
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* Retrieves the OIDs of the controls that may be supported by this backend.
|
*
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* @return The OIDs of the controls that may be supported by this backend.
|
*/
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public HashSet<String> getSupportedControls()
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{
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return supportedControls;
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}
|
|
|
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/**
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* Retrieves the set of base-level DNs that may be used within this backend.
|
*
|
* @return The set of base-level DNs that may be used within this backend.
|
*/
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public DN[] getBaseDNs()
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{
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Set<DN> dnSet = cfg.getBackendBaseDN();
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DN[] baseDNs = new DN[dnSet.size()];
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return dnSet.toArray(baseDNs);
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}
|
|
|
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/**
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* {@inheritDoc}
|
*/
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public long getEntryCount()
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{
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if (rootContainer != null)
|
{
|
try
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{
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return rootContainer.getEntryCount();
|
}
|
catch (Exception e)
|
{
|
if (debugEnabled())
|
{
|
TRACER.debugCaught(DebugLogLevel.ERROR, e);
|
}
|
}
|
}
|
|
return -1;
|
}
|
|
/**
|
* {@inheritDoc}
|
*/
|
public ConditionResult hasSubordinates(DN entryDN) throws DirectoryException
|
{
|
long ret = numSubordinates(entryDN);
|
if(ret < 0)
|
{
|
return ConditionResult.UNDEFINED;
|
}
|
else if(ret == 0)
|
{
|
return ConditionResult.FALSE;
|
}
|
else
|
{
|
return ConditionResult.TRUE;
|
}
|
}
|
|
/**
|
* {@inheritDoc}
|
*/
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public long numSubordinates(DN entryDN) throws DirectoryException
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{
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EntryContainer ec;
|
if (rootContainer != null)
|
{
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ec = rootContainer.getEntryContainer(entryDN);
|
}
|
else
|
{
|
Message message = ERR_ROOT_CONTAINER_NOT_INITIALIZED.get(getBackendID());
|
throw new DirectoryException(DirectoryServer.getServerErrorResultCode(),
|
message);
|
}
|
|
if(ec == null)
|
{
|
return -1;
|
}
|
|
readerBegin();
|
ec.sharedLock.lock();
|
try
|
{
|
long count = ec.getNumSubordinates(entryDN);
|
if(count == Long.MAX_VALUE)
|
{
|
// The index entry limit has exceeded and there is no count maintained.
|
return -1;
|
}
|
return count;
|
}
|
catch (DatabaseException e)
|
{
|
if (debugEnabled())
|
{
|
TRACER.debugCaught(DebugLogLevel.ERROR, e);
|
}
|
throw createDirectoryException(e);
|
}
|
finally
|
{
|
ec.sharedLock.unlock();
|
readerEnd();
|
}
|
}
|
|
/**
|
* Retrieves the requested entry from this backend. Note that the caller must
|
* hold a read or write lock on the specified DN.
|
*
|
* @param entryDN The distinguished name of the entry to retrieve.
|
* @return The requested entry, or <CODE>null</CODE> if the entry does not
|
* exist.
|
* @throws DirectoryException If a problem occurs while trying to retrieve the
|
* entry.
|
*/
|
public Entry getEntry(DN entryDN) throws DirectoryException
|
{
|
readerBegin();
|
|
EntryContainer ec;
|
if (rootContainer != null)
|
{
|
ec = rootContainer.getEntryContainer(entryDN);
|
}
|
else
|
{
|
Message message = ERR_ROOT_CONTAINER_NOT_INITIALIZED.get(getBackendID());
|
throw new DirectoryException(DirectoryServer.getServerErrorResultCode(),
|
message);
|
}
|
|
ec.sharedLock.lock();
|
Entry entry;
|
try
|
{
|
entry = ec.getEntry(entryDN);
|
}
|
catch (DatabaseException e)
|
{
|
if (debugEnabled())
|
{
|
TRACER.debugCaught(DebugLogLevel.ERROR, e);
|
}
|
throw createDirectoryException(e);
|
}
|
catch (JebException e)
|
{
|
if (debugEnabled())
|
{
|
TRACER.debugCaught(DebugLogLevel.ERROR, e);
|
}
|
throw new DirectoryException(DirectoryServer.getServerErrorResultCode(),
|
e.getMessageObject());
|
}
|
finally
|
{
|
ec.sharedLock.unlock();
|
readerEnd();
|
}
|
|
return entry;
|
}
|
|
|
|
/**
|
* Adds the provided entry to this backend. This method must ensure that the
|
* entry is appropriate for the backend and that no entry already exists with
|
* the same DN.
|
*
|
* @param entry The entry to add to this backend.
|
* @param addOperation The add operation with which the new entry is
|
* associated. This may be <CODE>null</CODE> for adds
|
* performed internally.
|
* @throws DirectoryException If a problem occurs while trying to add the
|
* entry.
|
*/
|
public void addEntry(Entry entry, AddOperation addOperation)
|
throws DirectoryException
|
{
|
writerBegin();
|
DN entryDN = entry.getDN();
|
|
EntryContainer ec;
|
if (rootContainer != null)
|
{
|
ec = rootContainer.getEntryContainer(entryDN);
|
}
|
else
|
{
|
Message message = ERR_ROOT_CONTAINER_NOT_INITIALIZED.get(getBackendID());
|
throw new DirectoryException(DirectoryServer.getServerErrorResultCode(),
|
message);
|
}
|
|
ec.sharedLock.lock();
|
try
|
{
|
ec.addEntry(entry, addOperation);
|
}
|
catch (DatabaseException e)
|
{
|
if (debugEnabled())
|
{
|
TRACER.debugCaught(DebugLogLevel.ERROR, e);
|
}
|
throw createDirectoryException(e);
|
}
|
catch (JebException e)
|
{
|
if (debugEnabled())
|
{
|
TRACER.debugCaught(DebugLogLevel.ERROR, e);
|
}
|
throw new DirectoryException(DirectoryServer.getServerErrorResultCode(),
|
e.getMessageObject());
|
}
|
finally
|
{
|
ec.sharedLock.unlock();
|
writerEnd();
|
}
|
}
|
|
|
|
/**
|
* Removes the specified entry from this backend. This method must ensure
|
* that the entry exists and that it does not have any subordinate entries
|
* (unless the backend supports a subtree delete operation and the client
|
* included the appropriate information in the request).
|
*
|
* @param entryDN The DN of the entry to remove from this backend.
|
* @param deleteOperation The delete operation with which this action is
|
* associated. This may be <CODE>null</CODE> for
|
* deletes performed internally.
|
* @throws DirectoryException If a problem occurs while trying to remove the
|
* entry.
|
*/
|
public void deleteEntry(DN entryDN, DeleteOperation deleteOperation)
|
throws DirectoryException
|
{
|
writerBegin();
|
|
EntryContainer ec;
|
if (rootContainer != null)
|
{
|
ec = rootContainer.getEntryContainer(entryDN);
|
}
|
else
|
{
|
Message message = ERR_ROOT_CONTAINER_NOT_INITIALIZED.get(getBackendID());
|
throw new DirectoryException(DirectoryServer.getServerErrorResultCode(),
|
message);
|
}
|
|
ec.sharedLock.lock();
|
try
|
{
|
ec.deleteEntry(entryDN, deleteOperation);
|
}
|
catch (DatabaseException e)
|
{
|
if (debugEnabled())
|
{
|
TRACER.debugCaught(DebugLogLevel.ERROR, e);
|
}
|
throw createDirectoryException(e);
|
}
|
catch (JebException e)
|
{
|
if (debugEnabled())
|
{
|
TRACER.debugCaught(DebugLogLevel.ERROR, e);
|
}
|
throw new DirectoryException(DirectoryServer.getServerErrorResultCode(),
|
e.getMessageObject());
|
}
|
finally
|
{
|
ec.sharedLock.unlock();
|
writerEnd();
|
}
|
}
|
|
|
|
/**
|
* Replaces the specified entry with the provided entry in this backend. The
|
* backend must ensure that an entry already exists with the same DN as the
|
* provided entry.
|
*
|
* @param entry The new entry to use in place of the existing entry
|
* with the same DN.
|
* @param modifyOperation The modify operation with which this action is
|
* associated. This may be <CODE>null</CODE> for
|
* modifications performed internally.
|
* @throws DirectoryException If a problem occurs while trying to replace the
|
* entry.
|
*/
|
public void replaceEntry(Entry entry, ModifyOperation modifyOperation)
|
throws DirectoryException
|
{
|
writerBegin();
|
|
DN entryDN = entry.getDN();
|
EntryContainer ec;
|
if (rootContainer != null)
|
{
|
ec = rootContainer.getEntryContainer(entryDN);
|
}
|
else
|
{
|
Message message = ERR_ROOT_CONTAINER_NOT_INITIALIZED.get(getBackendID());
|
throw new DirectoryException(DirectoryServer.getServerErrorResultCode(),
|
message);
|
}
|
|
ec.sharedLock.lock();
|
|
try
|
{
|
ec.replaceEntry(entry, modifyOperation);
|
}
|
catch (DatabaseException e)
|
{
|
if (debugEnabled())
|
{
|
TRACER.debugCaught(DebugLogLevel.ERROR, e);
|
}
|
throw createDirectoryException(e);
|
}
|
catch (JebException e)
|
{
|
if (debugEnabled())
|
{
|
TRACER.debugCaught(DebugLogLevel.ERROR, e);
|
}
|
throw new DirectoryException(DirectoryServer.getServerErrorResultCode(),
|
e.getMessageObject());
|
}
|
finally
|
{
|
ec.sharedLock.unlock();
|
writerEnd();
|
}
|
}
|
|
|
|
/**
|
* Moves and/or renames the provided entry in this backend, altering any
|
* subordinate entries as necessary. This must ensure that an entry already
|
* exists with the provided current DN, and that no entry exists with the
|
* target DN of the provided entry. The caller must hold write locks on both
|
* the current DN and the new DN for the entry.
|
*
|
* @param currentDN The current DN of the entry to be replaced.
|
* @param entry The new content to use for the entry.
|
* @param modifyDNOperation The modify DN operation with which this action is
|
* associated. This may be <CODE>null</CODE> for
|
* modify DN operations performed internally.
|
* @throws org.opends.server.types.DirectoryException
|
* If a problem occurs while trying to perform the rename.
|
* @throws org.opends.server.types.CancelledOperationException
|
* If this backend noticed and reacted to a request to cancel or
|
* abandon the modify DN operation.
|
*/
|
public void renameEntry(DN currentDN, Entry entry,
|
ModifyDNOperation modifyDNOperation)
|
throws DirectoryException, CancelledOperationException
|
{
|
writerBegin();
|
|
EntryContainer currentContainer;
|
if (rootContainer != null)
|
{
|
currentContainer = rootContainer.getEntryContainer(currentDN);
|
}
|
else
|
{
|
Message message = ERR_ROOT_CONTAINER_NOT_INITIALIZED.get(getBackendID());
|
throw new DirectoryException(DirectoryServer.getServerErrorResultCode(),
|
message);
|
}
|
|
EntryContainer container = rootContainer.getEntryContainer(entry.getDN());
|
|
if (currentContainer != container)
|
{
|
// FIXME: No reason why we cannot implement a move between containers
|
// since the containers share the same database environment.
|
Message msg = WARN_JEB_FUNCTION_NOT_SUPPORTED.get();
|
throw new DirectoryException(ResultCode.UNWILLING_TO_PERFORM,
|
msg);
|
}
|
try
|
{
|
currentContainer.sharedLock.lock();
|
|
currentContainer.renameEntry(currentDN, entry, modifyDNOperation);
|
}
|
catch (DatabaseException e)
|
{
|
if (debugEnabled())
|
{
|
TRACER.debugCaught(DebugLogLevel.ERROR, e);
|
}
|
throw createDirectoryException(e);
|
}
|
catch (JebException e)
|
{
|
if (debugEnabled())
|
{
|
TRACER.debugCaught(DebugLogLevel.ERROR, e);
|
}
|
throw new DirectoryException(DirectoryServer.getServerErrorResultCode(),
|
e.getMessageObject());
|
}
|
finally
|
{
|
currentContainer.sharedLock.unlock();
|
writerEnd();
|
}
|
}
|
|
|
|
/**
|
* Processes the specified search in this backend. Matching entries should be
|
* provided back to the core server using the
|
* <CODE>SearchOperation.returnEntry</CODE> method.
|
*
|
* @param searchOperation The search operation to be processed.
|
* @throws org.opends.server.types.DirectoryException
|
* If a problem occurs while processing the search.
|
*/
|
public void search(SearchOperation searchOperation)
|
throws DirectoryException
|
{
|
readerBegin();
|
|
EntryContainer ec;
|
if (rootContainer != null)
|
{
|
ec = rootContainer.getEntryContainer(searchOperation.getBaseDN());
|
}
|
else
|
{
|
Message message = ERR_ROOT_CONTAINER_NOT_INITIALIZED.get(getBackendID());
|
throw new DirectoryException(DirectoryServer.getServerErrorResultCode(),
|
message);
|
}
|
ec.sharedLock.lock();
|
|
try
|
{
|
ec.search(searchOperation);
|
}
|
catch (DatabaseException e)
|
{
|
if (debugEnabled())
|
{
|
TRACER.debugCaught(DebugLogLevel.ERROR, e);
|
}
|
throw createDirectoryException(e);
|
}
|
catch (JebException e)
|
{
|
if (debugEnabled())
|
{
|
TRACER.debugCaught(DebugLogLevel.ERROR, e);
|
}
|
Message message = ERR_JEB_DATABASE_EXCEPTION.get(e.getMessage());
|
throw new DirectoryException(DirectoryServer.getServerErrorResultCode(),
|
message);
|
}
|
finally
|
{
|
ec.sharedLock.unlock();
|
readerEnd();
|
}
|
}
|
|
|
|
/**
|
* {@inheritDoc}
|
*/
|
public void exportLDIF(LDIFExportConfig exportConfig)
|
throws DirectoryException
|
{
|
// If the backend already has the root container open, we must use the same
|
// underlying root container
|
boolean openRootContainer = rootContainer == null;
|
|
try
|
{
|
if(openRootContainer)
|
{
|
EnvironmentConfig envConfig =
|
ConfigurableEnvironment.parseConfigEntry(cfg);
|
|
envConfig.setReadOnly(true);
|
envConfig.setAllowCreate(false);
|
envConfig.setTransactional(false);
|
envConfig.setTxnNoSync(false);
|
envConfig.setConfigParam("je.env.isLocking", "true");
|
envConfig.setConfigParam("je.env.runCheckpointer", "true");
|
|
rootContainer = initializeRootContainer(envConfig);
|
}
|
|
|
ExportJob exportJob = new ExportJob(exportConfig);
|
exportJob.exportLDIF(rootContainer);
|
}
|
catch (IOException ioe)
|
{
|
if (debugEnabled())
|
{
|
TRACER.debugCaught(DebugLogLevel.ERROR, ioe);
|
}
|
Message message = ERR_JEB_IO_ERROR.get(ioe.getMessage());
|
throw new DirectoryException(DirectoryServer.getServerErrorResultCode(),
|
message);
|
}
|
catch (JebException je)
|
{
|
if (debugEnabled())
|
{
|
TRACER.debugCaught(DebugLogLevel.ERROR, je);
|
}
|
throw new DirectoryException(DirectoryServer.getServerErrorResultCode(),
|
je.getMessageObject());
|
}
|
catch (DatabaseException de)
|
{
|
if (debugEnabled())
|
{
|
TRACER.debugCaught(DebugLogLevel.ERROR, de);
|
}
|
throw createDirectoryException(de);
|
}
|
catch (LDIFException e)
|
{
|
if (debugEnabled())
|
{
|
TRACER.debugCaught(DebugLogLevel.ERROR, e);
|
}
|
throw new DirectoryException(DirectoryServer.getServerErrorResultCode(),
|
e.getMessageObject());
|
}
|
catch (InitializationException ie)
|
{
|
if (debugEnabled())
|
{
|
TRACER.debugCaught(DebugLogLevel.ERROR, ie);
|
}
|
throw new DirectoryException(DirectoryServer.getServerErrorResultCode(),
|
ie.getMessageObject());
|
}
|
catch (ConfigException ce)
|
{
|
if (debugEnabled())
|
{
|
TRACER.debugCaught(DebugLogLevel.ERROR, ce);
|
}
|
throw new DirectoryException(DirectoryServer.getServerErrorResultCode(),
|
ce.getMessageObject());
|
}
|
finally
|
{
|
//If a root container was opened in this method as read only, close it
|
//to leave the backend in the same state.
|
if (openRootContainer && rootContainer != null)
|
{
|
try
|
{
|
rootContainer.close();
|
rootContainer = null;
|
}
|
catch (DatabaseException e)
|
{
|
if (debugEnabled())
|
{
|
TRACER.debugCaught(DebugLogLevel.ERROR, e);
|
}
|
}
|
}
|
}
|
}
|
|
|
|
/**
|
* {@inheritDoc}
|
*/
|
public LDIFImportResult importLDIF(LDIFImportConfig importConfig)
|
throws DirectoryException
|
{
|
// If the backend already has the root container open, we must use the same
|
// underlying root container
|
boolean openRootContainer = rootContainer == null;
|
|
// If the rootContainer is open, the backend is initialized by something
|
// else.
|
// We can't do import while the backend is online.
|
if(!openRootContainer)
|
{
|
Message message = ERR_JEB_IMPORT_BACKEND_ONLINE.get();
|
throw new DirectoryException(DirectoryServer.getServerErrorResultCode(),
|
message);
|
}
|
|
try
|
{
|
EnvironmentConfig envConfig =
|
ConfigurableEnvironment.parseConfigEntry(cfg);
|
/**
|
envConfig.setConfigParam("je.env.runCleaner", "false");
|
envConfig.setConfigParam("je.log.numBuffers", "2");
|
envConfig.setConfigParam("je.log.bufferSize", "15000000");
|
envConfig.setConfigParam("je.log.totalBufferBytes", "30000000");
|
envConfig.setConfigParam("je.log.fileMax", "100000000");
|
**/
|
|
if (importConfig.appendToExistingData())
|
{
|
envConfig.setReadOnly(false);
|
envConfig.setAllowCreate(true);
|
envConfig.setTransactional(true);
|
envConfig.setTxnNoSync(true);
|
envConfig.setConfigParam("je.env.isLocking", "true");
|
envConfig.setConfigParam("je.env.runCheckpointer", "false");
|
}
|
else if(importConfig.clearBackend() || cfg.getBackendBaseDN().size() <= 1)
|
{
|
// We have the writer lock on the environment, now delete the
|
// environment and re-open it. Only do this when we are
|
// importing to all the base DNs in the backend or if the backend only
|
// have one base DN.
|
|
File backendDirectory = getFileForPath(cfg.getBackendDirectory());
|
EnvManager.removeFiles(backendDirectory.getPath());
|
envConfig.setReadOnly(false);
|
envConfig.setAllowCreate(true);
|
envConfig.setTransactional(false);
|
envConfig.setTxnNoSync(false);
|
envConfig.setConfigParam("je.env.isLocking", "false");
|
envConfig.setConfigParam("je.env.runCheckpointer", "false");
|
}
|
|
rootContainer = initializeRootContainer(envConfig);
|
|
ImportJob importJob = new ImportJob(importConfig);
|
return importJob.importLDIF(rootContainer);
|
}
|
catch (IOException ioe)
|
{
|
if (debugEnabled())
|
{
|
TRACER.debugCaught(DebugLogLevel.ERROR, ioe);
|
}
|
Message message = ERR_JEB_IO_ERROR.get(ioe.getMessage());
|
throw new DirectoryException(DirectoryServer.getServerErrorResultCode(),
|
message);
|
}
|
catch (JebException je)
|
{
|
if (debugEnabled())
|
{
|
TRACER.debugCaught(DebugLogLevel.ERROR, je);
|
}
|
throw new DirectoryException(DirectoryServer.getServerErrorResultCode(),
|
je.getMessageObject());
|
}
|
catch (DatabaseException de)
|
{
|
if (debugEnabled())
|
{
|
TRACER.debugCaught(DebugLogLevel.ERROR, de);
|
}
|
throw createDirectoryException(de);
|
}
|
catch (InitializationException ie)
|
{
|
if (debugEnabled())
|
{
|
TRACER.debugCaught(DebugLogLevel.ERROR, ie);
|
}
|
throw new DirectoryException(DirectoryServer.getServerErrorResultCode(),
|
ie.getMessageObject());
|
}
|
catch (ConfigException ce)
|
{
|
if (debugEnabled())
|
{
|
TRACER.debugCaught(DebugLogLevel.ERROR, ce);
|
}
|
throw new DirectoryException(DirectoryServer.getServerErrorResultCode(),
|
ce.getMessageObject());
|
}
|
finally
|
{
|
// leave the backend in the same state.
|
try
|
{
|
rootContainer.close();
|
rootContainer = null;
|
|
// Sync the environment to disk.
|
if (debugEnabled())
|
{
|
Message message = INFO_JEB_IMPORT_CLOSING_DATABASE.get();
|
TRACER.debugInfo(message.toString());
|
}
|
}
|
catch (DatabaseException de)
|
{
|
if (debugEnabled())
|
{
|
TRACER.debugCaught(DebugLogLevel.ERROR, de);
|
}
|
}
|
}
|
}
|
|
|
|
/**
|
* Verify the integrity of the backend instance.
|
* @param verifyConfig The verify configuration.
|
* @param statEntry Optional entry to save stats into.
|
* @return The error count.
|
* @throws ConfigException If an unrecoverable problem arises during
|
* initialization.
|
* @throws InitializationException If a problem occurs during initialization
|
* that is not related to the server
|
* configuration.
|
* @throws DirectoryException If a Directory Server error occurs.
|
*/
|
public long verifyBackend(VerifyConfig verifyConfig, Entry statEntry)
|
throws InitializationException, ConfigException, DirectoryException
|
{
|
// If the backend already has the root container open, we must use the same
|
// underlying root container
|
boolean openRootContainer = rootContainer == null;
|
long errorCount = 0 ;
|
|
try
|
{
|
if(openRootContainer)
|
{
|
EnvironmentConfig envConfig =
|
ConfigurableEnvironment.parseConfigEntry(cfg);
|
|
envConfig.setReadOnly(true);
|
envConfig.setAllowCreate(false);
|
envConfig.setTransactional(false);
|
envConfig.setTxnNoSync(false);
|
envConfig.setConfigParam("je.env.isLocking", "true");
|
envConfig.setConfigParam("je.env.runCheckpointer", "true");
|
|
rootContainer = initializeRootContainer(envConfig);
|
}
|
|
VerifyJob verifyJob = new VerifyJob(verifyConfig);
|
errorCount = verifyJob.verifyBackend(rootContainer, statEntry);
|
}
|
catch (DatabaseException e)
|
{
|
if (debugEnabled())
|
{
|
TRACER.debugCaught(DebugLogLevel.ERROR, e);
|
}
|
throw createDirectoryException(e);
|
}
|
catch (JebException e)
|
{
|
if (debugEnabled())
|
{
|
TRACER.debugCaught(DebugLogLevel.ERROR, e);
|
}
|
throw new DirectoryException(DirectoryServer.getServerErrorResultCode(),
|
e.getMessageObject());
|
}
|
finally
|
{
|
//If a root container was opened in this method as read only, close it
|
//to leave the backend in the same state.
|
if (openRootContainer && rootContainer != null)
|
{
|
try
|
{
|
rootContainer.close();
|
rootContainer = null;
|
}
|
catch (DatabaseException e)
|
{
|
if (debugEnabled())
|
{
|
TRACER.debugCaught(DebugLogLevel.ERROR, e);
|
}
|
}
|
}
|
}
|
return errorCount;
|
}
|
|
|
/**
|
* Rebuild index(es) in the backend instance. Note that the server will not
|
* explicitly initialize this backend before calling this method.
|
* @param rebuildConfig The rebuild configuration.
|
* @throws ConfigException If an unrecoverable problem arises during
|
* initialization.
|
* @throws InitializationException If a problem occurs during initialization
|
* that is not related to the server
|
* configuration.
|
* @throws DirectoryException If a Directory Server error occurs.
|
*/
|
public void rebuildBackend(RebuildConfig rebuildConfig)
|
throws InitializationException, ConfigException, DirectoryException
|
{
|
// If the backend already has the root container open, we must use the same
|
// underlying root container
|
boolean openRootContainer = rootContainer == null;
|
|
// If the rootContainer is open, the backend is initialized by something
|
// else.
|
// We can't do any rebuild of system indexes while others are using this
|
// backend. Throw error. TODO: Need to make baseDNs disablable.
|
if(!openRootContainer && rebuildConfig.includesSystemIndex())
|
{
|
Message message = ERR_JEB_REBUILD_BACKEND_ONLINE.get();
|
throw new DirectoryException(DirectoryServer.getServerErrorResultCode(),
|
message);
|
}
|
|
try
|
{
|
if (openRootContainer)
|
{
|
EnvironmentConfig envConfig =
|
ConfigurableEnvironment.parseConfigEntry(cfg);
|
|
rootContainer = initializeRootContainer(envConfig);
|
}
|
|
RebuildJob rebuildJob = new RebuildJob(rebuildConfig);
|
rebuildJob.rebuildBackend(rootContainer);
|
}
|
catch (DatabaseException e)
|
{
|
if (debugEnabled())
|
{
|
TRACER.debugCaught(DebugLogLevel.ERROR, e);
|
}
|
throw createDirectoryException(e);
|
}
|
catch (JebException e)
|
{
|
if (debugEnabled())
|
{
|
TRACER.debugCaught(DebugLogLevel.ERROR, e);
|
}
|
throw new DirectoryException(DirectoryServer.getServerErrorResultCode(),
|
e.getMessageObject());
|
}
|
finally
|
{
|
//If a root container was opened in this method as read only, close it
|
//to leave the backend in the same state.
|
if (openRootContainer && rootContainer != null)
|
{
|
try
|
{
|
rootContainer.close();
|
rootContainer = null;
|
}
|
catch (DatabaseException e)
|
{
|
if (debugEnabled())
|
{
|
TRACER.debugCaught(DebugLogLevel.ERROR, e);
|
}
|
}
|
}
|
}
|
}
|
|
|
|
/**
|
* {@inheritDoc}
|
*/
|
public void createBackup(BackupConfig backupConfig)
|
throws DirectoryException
|
{
|
BackupManager backupManager =
|
new BackupManager(getBackendID());
|
backupManager.createBackup(cfg, backupConfig);
|
}
|
|
|
|
/**
|
* {@inheritDoc}
|
*/
|
public void removeBackup(BackupDirectory backupDirectory, String backupID)
|
throws DirectoryException
|
{
|
BackupManager backupManager =
|
new BackupManager(getBackendID());
|
backupManager.removeBackup(backupDirectory, backupID);
|
}
|
|
|
|
/**
|
* {@inheritDoc}
|
*/
|
public void restoreBackup(RestoreConfig restoreConfig)
|
throws DirectoryException
|
{
|
BackupManager backupManager =
|
new BackupManager(getBackendID());
|
backupManager.restoreBackup(cfg, restoreConfig);
|
}
|
|
|
|
/**
|
* {@inheritDoc}
|
*/
|
@Override()
|
public boolean isConfigurationAcceptable(Configuration configuration,
|
List<Message> unacceptableReasons)
|
{
|
JEBackendCfg config = (JEBackendCfg) configuration;
|
return isConfigurationChangeAcceptable(config, unacceptableReasons);
|
}
|
|
|
|
/**
|
* {@inheritDoc}
|
*/
|
public boolean isConfigurationChangeAcceptable(
|
JEBackendCfg cfg,
|
List<Message> unacceptableReasons)
|
{
|
// Make sure that the logging level value is acceptable.
|
String loggingLevel = cfg.getDatabaseLoggingLevel();
|
if (! (loggingLevel.equals("OFF") ||
|
loggingLevel.equals("SEVERE") ||
|
loggingLevel.equals("WARNING") ||
|
loggingLevel.equals("INFORMATION") ||
|
loggingLevel.equals("CONFIG") ||
|
loggingLevel.equals("FINE") ||
|
loggingLevel.equals("FINER") ||
|
loggingLevel.equals("FINEST") ||
|
loggingLevel.equals("OFF")))
|
{
|
|
Message message = ERR_JEB_INVALID_LOGGING_LEVEL.get(
|
String.valueOf(cfg.getDatabaseLoggingLevel()),
|
String.valueOf(cfg.dn()));
|
unacceptableReasons.add(message);
|
return false;
|
}
|
|
return true;
|
}
|
|
|
|
/**
|
* {@inheritDoc}
|
*/
|
public ConfigChangeResult applyConfigurationChange(JEBackendCfg newCfg)
|
{
|
ConfigChangeResult ccr;
|
ResultCode resultCode = ResultCode.SUCCESS;
|
ArrayList<Message> messages = new ArrayList<Message>();
|
|
|
try
|
{
|
if(rootContainer != null)
|
{
|
DN[] baseDNs = new DN[newCfg.getBackendBaseDN().size()];
|
baseDNs = newCfg.getBackendBaseDN().toArray(baseDNs);
|
|
// Check for changes to the base DNs.
|
for (DN baseDN : cfg.getBackendBaseDN())
|
{
|
boolean found = false;
|
for (DN dn : baseDNs)
|
{
|
if (dn.equals(baseDN))
|
{
|
found = true;
|
}
|
}
|
if (!found)
|
{
|
// The base DN was deleted.
|
DirectoryServer.deregisterBaseDN(baseDN);
|
EntryContainer ec =
|
rootContainer.unregisterEntryContainer(baseDN);
|
ec.delete();
|
}
|
}
|
|
for (DN baseDN : baseDNs)
|
{
|
if (!rootContainer.getBaseDNs().contains(baseDN))
|
{
|
try
|
{
|
// The base DN was added.
|
EntryContainer ec =
|
rootContainer.openEntryContainer(baseDN, null);
|
rootContainer.registerEntryContainer(baseDN, ec);
|
DirectoryServer.registerBaseDN(baseDN, this, false);
|
}
|
catch (Exception e)
|
{
|
if (debugEnabled())
|
{
|
TRACER.debugCaught(DebugLogLevel.ERROR, e);
|
}
|
|
resultCode = DirectoryServer.getServerErrorResultCode();
|
|
|
messages.add(ERR_BACKEND_CANNOT_REGISTER_BASEDN.get(
|
String.valueOf(baseDN),
|
String.valueOf(e)));
|
ccr = new ConfigChangeResult(resultCode, false, messages);
|
return ccr;
|
}
|
}
|
}
|
}
|
// Put the new configuration in place.
|
this.cfg = newCfg;
|
}
|
catch (Exception e)
|
{
|
messages.add(Message.raw(stackTraceToSingleLineString(e)));
|
ccr = new ConfigChangeResult(DirectoryServer.getServerErrorResultCode(),
|
false, messages);
|
return ccr;
|
}
|
|
ccr = new ConfigChangeResult(resultCode, false, messages);
|
return ccr;
|
}
|
|
/**
|
* Returns a handle to the JE root container currently used by this backend.
|
* The rootContainer could be NULL if the backend is not initialized.
|
*
|
* @return The RootContainer object currently used by this backend.
|
*/
|
public RootContainer getRootContainer()
|
{
|
return rootContainer;
|
}
|
|
/**
|
* Returns a new read-only handle to the JE root container for this backend.
|
* The caller is responsible for closing the root container after use.
|
*
|
* @return The read-only RootContainer object for this backend.
|
*
|
* @throws ConfigException If an unrecoverable problem arises during
|
* initialization.
|
* @throws InitializationException If a problem occurs during initialization
|
* that is not related to the server
|
* configuration.
|
*/
|
public RootContainer getReadOnlyRootContainer()
|
throws ConfigException, InitializationException
|
{
|
EnvironmentConfig envConfig =
|
ConfigurableEnvironment.parseConfigEntry(cfg);
|
|
envConfig.setReadOnly(true);
|
envConfig.setAllowCreate(false);
|
envConfig.setTransactional(false);
|
envConfig.setTxnNoSync(false);
|
envConfig.setConfigParam("je.env.isLocking", "true");
|
envConfig.setConfigParam("je.env.runCheckpointer", "true");
|
|
return initializeRootContainer(envConfig);
|
}
|
|
/**
|
* Clears all the entries from the backend. This method is for test cases
|
* that use the JE backend.
|
*
|
* @throws ConfigException If an unrecoverable problem arises in the
|
* process of performing the initialization.
|
*
|
* @throws JebException If an error occurs while removing the data.
|
*/
|
public void clearBackend()
|
throws ConfigException, JebException
|
{
|
// Determine the backend database directory.
|
File backendDirectory = getFileForPath(cfg.getBackendDirectory());
|
EnvManager.removeFiles(backendDirectory.getPath());
|
}
|
|
/**
|
* Creates a customized DirectoryException from the DatabaseException thrown
|
* by JE backend.
|
*
|
* @param e The DatabaseException to be converted.
|
* @return DirectoryException created from exception.
|
*/
|
DirectoryException createDirectoryException(DatabaseException e)
|
{
|
ResultCode resultCode = DirectoryServer.getServerErrorResultCode();
|
Message message = null;
|
if(e instanceof RunRecoveryException)
|
{
|
message = NOTE_BACKEND_ENVIRONMENT_UNUSABLE.get(getBackendID());
|
logError(message);
|
DirectoryServer.sendAlertNotification(DirectoryServer.getInstance(),
|
ALERT_TYPE_BACKEND_ENVIRONMENT_UNUSABLE, message);
|
}
|
|
String jeMessage = e.getMessage();
|
if (jeMessage == null)
|
{
|
jeMessage = stackTraceToSingleLineString(e);
|
}
|
message = ERR_JEB_DATABASE_EXCEPTION.get(jeMessage);
|
return new DirectoryException(resultCode, message, e);
|
}
|
|
/**
|
* Retrieves the fully-qualified name of the Java class for this alert
|
* generator implementation.
|
*
|
* @return The fully-qualified name of the Java class for this alert
|
* generator implementation.
|
*/
|
public String getClassName()
|
{
|
return CLASS_NAME;
|
}
|
|
/**
|
* Retrieves information about the set of alerts that this generator may
|
* produce. The map returned should be between the notification type for a
|
* particular notification and the human-readable description for that
|
* notification. This alert generator must not generate any alerts with types
|
* that are not contained in this list.
|
*
|
* @return Information about the set of alerts that this generator may
|
* produce.
|
*/
|
public LinkedHashMap<String,String> getAlerts()
|
{
|
LinkedHashMap<String,String> alerts = new LinkedHashMap<String,String>();
|
|
alerts.put(ALERT_TYPE_BACKEND_ENVIRONMENT_UNUSABLE,
|
ALERT_DESCRIPTION_BACKEND_ENVIRONMENT_UNUSABLE);
|
return alerts;
|
}
|
|
/**
|
* Retrieves the DN of the configuration entry with which this alert generator
|
* is associated.
|
*
|
* @return The DN of the configuration entry with which this alert generator
|
* is associated.
|
*/
|
public DN getComponentEntryDN()
|
{
|
return cfg.dn();
|
}
|
|
private RootContainer initializeRootContainer(EnvironmentConfig envConfig)
|
throws ConfigException, InitializationException
|
{
|
// Open the database environment
|
try
|
{
|
RootContainer rc = new RootContainer(this, cfg);
|
rc.open(envConfig);
|
return rc;
|
}
|
catch (DatabaseException e)
|
{
|
if (debugEnabled())
|
{
|
TRACER.debugCaught(DebugLogLevel.ERROR, e);
|
}
|
Message message = ERR_JEB_OPEN_ENV_FAIL.get(e.getMessage());
|
throw new InitializationException(message, e);
|
}
|
}
|
}
|
