/*
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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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* 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 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.DebugLogLevel;
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import static org.opends.messages.JebMessages.ERR_JEB_CREATE_FAIL;
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import static org.opends.messages.JebMessages.
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ERR_JEB_DIRECTORY_INVALID;
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import static org.opends.messages.JebMessages.ERR_JEB_REMOVE_FAIL;
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import java.io.File;
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import java.io.FilenameFilter;
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/**
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* A singleton class to manage the life-cycle of a JE database environment.
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*/
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public class EnvManager
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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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* A filename filter to match all kinds of JE files.
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*/
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private static final FilenameFilter jeAllFilesFilter;
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static
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{
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// A filename filter to match all kinds of JE files.
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// JE has a com.sleepycat.je.log.JEFileFilter that would be useful
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// here but is not public.
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jeAllFilesFilter = new FilenameFilter()
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{
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public boolean accept(File d, String name)
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{
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return name.endsWith(".jdb") ||
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name.endsWith(".del") ||
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name.equals("je.lck");
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}
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};
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}
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/**
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* Creates the environment home directory, deleting any existing data files
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* if the directory already exists.
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* The environment must not be open.
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*
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* @param homeDir The backend home directory.
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* @throws JebException If an error occurs in the JE backend.
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*/
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public static void createHomeDir(String homeDir)
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throws JebException
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{
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File dir = new File(homeDir);
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if (dir.exists())
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{
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if (!dir.isDirectory())
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{
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Message message = ERR_JEB_DIRECTORY_INVALID.get(homeDir);
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throw new JebException(message);
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}
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removeFiles(homeDir);
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}
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else
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{
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try
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{
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dir.mkdir();
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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_JEB_CREATE_FAIL.get(e.getMessage());
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throw new JebException(message, e);
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}
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}
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}
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/**
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* Deletes all the data files associated with the environment.
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* The environment must not be open.
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*
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* @param homeDir The backend home directory
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* @throws JebException If an error occurs in the JE backend.
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*/
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public static void removeFiles(String homeDir)
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throws JebException
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{
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File dir = new File(homeDir);
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if (!dir.isDirectory())
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{
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Message message = ERR_JEB_DIRECTORY_INVALID.get(homeDir);
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throw new JebException(message);
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}
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try
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{
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File[] jdbFiles = dir.listFiles(jeAllFilesFilter);
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for (File f : jdbFiles)
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{
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f.delete();
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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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Message message = ERR_JEB_REMOVE_FAIL.get(e.getMessage());
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throw new JebException(message, e);
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}
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}
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}
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