001 /* 002 * CDDL HEADER START 003 * 004 * The contents of this file are subject to the terms of the 005 * Common Development and Distribution License, Version 1.0 only 006 * (the "License"). You may not use this file except in compliance 007 * with the License. 008 * 009 * You can obtain a copy of the license at 010 * trunk/opends/resource/legal-notices/OpenDS.LICENSE 011 * or https://OpenDS.dev.java.net/OpenDS.LICENSE. 012 * See the License for the specific language governing permissions 013 * and limitations under the License. 014 * 015 * When distributing Covered Code, include this CDDL HEADER in each 016 * file and include the License file at 017 * trunk/opends/resource/legal-notices/OpenDS.LICENSE. If applicable, 018 * add the following below this CDDL HEADER, with the fields enclosed 019 * by brackets "[]" replaced with your own identifying information: 020 * Portions Copyright [yyyy] [name of copyright owner] 021 * 022 * CDDL HEADER END 023 * 024 * 025 * Copyright 2006-2008 Sun Microsystems, Inc. 026 */ 027 package org.opends.server.backends.jeb; 028 import org.opends.messages.Message; 029 030 import static org.opends.server.loggers.debug.DebugLogger.*; 031 import org.opends.server.loggers.debug.DebugTracer; 032 import org.opends.server.types.DebugLogLevel; 033 import static org.opends.messages.JebMessages.*; 034 035 import java.io.File; 036 import java.io.FilenameFilter; 037 038 /** 039 * A singleton class to manage the life-cycle of a JE database environment. 040 */ 041 public class EnvManager 042 { 043 /** 044 * The tracer object for the debug logger. 045 */ 046 private static final DebugTracer TRACER = getTracer(); 047 048 049 /** 050 * A filename filter to match all kinds of JE files. 051 */ 052 private static final FilenameFilter jeAllFilesFilter; 053 054 static 055 { 056 // A filename filter to match all kinds of JE files. 057 // JE has a com.sleepycat.je.log.JEFileFilter that would be useful 058 // here but is not public. 059 jeAllFilesFilter = new FilenameFilter() 060 { 061 public boolean accept(File d, String name) 062 { 063 return name.endsWith(".jdb") || 064 name.endsWith(".del") || 065 name.equals("je.lck"); 066 } 067 }; 068 } 069 070 /** 071 * Creates the environment home directory, deleting any existing data files 072 * if the directory already exists. 073 * The environment must not be open. 074 * 075 * @param homeDir The backend home directory. 076 * @throws JebException If an error occurs in the JE backend. 077 */ 078 public static void createHomeDir(String homeDir) 079 throws JebException 080 { 081 File dir = new File(homeDir); 082 083 if (dir.exists()) 084 { 085 if (!dir.isDirectory()) 086 { 087 Message message = ERR_JEB_DIRECTORY_INVALID.get(homeDir); 088 throw new JebException(message); 089 } 090 removeFiles(homeDir); 091 } 092 else 093 { 094 try 095 { 096 dir.mkdir(); 097 } 098 catch (Exception e) 099 { 100 if (debugEnabled()) 101 { 102 TRACER.debugCaught(DebugLogLevel.ERROR, e); 103 } 104 Message message = ERR_JEB_CREATE_FAIL.get(e.getMessage()); 105 throw new JebException(message, e); 106 } 107 } 108 } 109 110 /** 111 * Deletes all the data files associated with the environment. 112 * The environment must not be open. 113 * 114 * @param homeDir The backend home directory 115 * @throws JebException If an error occurs in the JE backend or if the 116 * specified home directory does not exist. 117 */ 118 public static void removeFiles(String homeDir) 119 throws JebException 120 { 121 File dir = new File(homeDir); 122 if (!dir.exists()) 123 { 124 Message message = ERR_JEB_DIRECTORY_DOES_NOT_EXIST.get(homeDir); 125 throw new JebException(message); 126 } 127 if (!dir.isDirectory()) 128 { 129 Message message = ERR_JEB_DIRECTORY_INVALID.get(homeDir); 130 throw new JebException(message); 131 } 132 133 try 134 { 135 File[] jdbFiles = dir.listFiles(jeAllFilesFilter); 136 for (File f : jdbFiles) 137 { 138 f.delete(); 139 } 140 } 141 catch (Exception e) 142 { 143 if (debugEnabled()) 144 { 145 TRACER.debugCaught(DebugLogLevel.ERROR, e); 146 } 147 Message message = ERR_JEB_REMOVE_FAIL.get(e.getMessage()); 148 throw new JebException(message, e); 149 } 150 } 151 152 }