/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.jackrabbit.jca;
import javax.jcr.Repository;
import javax.jcr.RepositoryException;
import org.apache.jackrabbit.api.JackrabbitRepository;
import org.apache.jackrabbit.commons.JcrUtils;
import org.apache.jackrabbit.core.RepositoryImpl;
import org.apache.jackrabbit.core.config.RepositoryConfig;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.util.HashMap;
import java.util.Map;
/**
* This class implements the repository manager.
*/
public final class JCARepositoryManager {
/** The config file prefix that signifies the file is to be loaded from the classpath. */
public static final String CLASSPATH_CONFIG_PREFIX = "classpath:";
/**
* Instance of manager.
*/
private static final JCARepositoryManager INSTANCE =
new JCARepositoryManager();
/**
* References.
*/
private final Map<Map<String, String>, Repository> repositories =
new HashMap<Map<String, String>, Repository>();
/**
* Flag indicating that the life cycle
* of the resource is not managed by the
* application server
*/
private boolean autoShutdown = true;
/**
* Construct the manager.
*/
private JCARepositoryManager() {
}
/**
* Create repository.
*
* @param parameters repository parameters
* @return repository instance
*/
public synchronized Repository createRepository(
Map<String, String> parameters) throws RepositoryException {
Repository repository = repositories.get(parameters);
if (repository == null) {
if (parameters.containsKey(JcrUtils.REPOSITORY_URI)) {
repository = JcrUtils.getRepository(parameters);
} else {
repository = createNonTransientRepository(parameters);
}
repositories.put(parameters, repository);
}
return repository;
}
/**
* Creates a non transient Repository
*
* @param parameters
* @return Repository
* @throws RepositoryException
*/
private Repository createNonTransientRepository(
Map<String, String> parameters) throws RepositoryException {
RepositoryConfig config = null;
String configFile = parameters.get(JCAManagedConnectionFactory.CONFIGFILE_KEY);
String homeDir = parameters.get(JCAManagedConnectionFactory.HOMEDIR_KEY);
if (configFile != null && configFile.startsWith(CLASSPATH_CONFIG_PREFIX)) {
ClassLoader cl = Thread.currentThread().getContextClassLoader();
if (cl == null) {
cl = this.getClass().getClassLoader();
}
InputStream configInputStream = cl.getResourceAsStream(
configFile.substring(CLASSPATH_CONFIG_PREFIX.length()));
try {
config = RepositoryConfig.create(configInputStream, homeDir);
} finally {
if (configInputStream != null) {
try {
configInputStream.close();
} catch (IOException e) {
// ignore
}
}
}
} else if (configFile != null) {
config = RepositoryConfig.create(configFile, homeDir);
} else {
config = RepositoryConfig.create(new File(homeDir));
}
return RepositoryImpl.create(config);
}
/**
* Shutdown all the repositories.
*/
public synchronized void shutdown() {
for (Repository repository : repositories.values()) {
if (repository instanceof JackrabbitRepository) {
((JackrabbitRepository) repository).shutdown();
}
}
repositories.clear();
}
/**
* Return the instance.
*/
public static JCARepositoryManager getInstance() {
return INSTANCE;
}
public boolean isAutoShutdown() {
return autoShutdown;
}
public void setAutoShutdown(boolean autoShutdown) {
this.autoShutdown = autoShutdown;
}
/**
* Try to shutdown the repository only if
* {@link JCARepositoryManager#autoShutdown} is true.
*
* @param homeDir The location of the repository.
* @param configFile The path to the repository configuration file.
*/
public synchronized void autoShutdownRepository(
Map<String, String> parameters) {
if (this.isAutoShutdown()) {
Repository repository = repositories.get(parameters);
if (repository instanceof JackrabbitRepository) {
((JackrabbitRepository) repository).shutdown();
}
}
}
}