/**
*
* Copyright 2003-2004 The Apache Software Foundation
*
* Licensed 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.geronimo.kernel.log;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogConfigurationException;
import org.apache.commons.logging.LogFactory;
/**
* @version $Rev: 168245 $ $Date: 2005-05-04 20:48:50 -0600 (Wed, 04 May 2005) $
*/
public class GeronimoLogFactory extends LogFactory {
private final static Object factoryLock = new Object();
// todo this should use weak references
private static final HashMap instancesByClassLoader = new HashMap();
private static LogFactory logFactory = new BootstrapLogFactory();
public GeronimoLogFactory() {
}
public LogFactory getLogFactory() {
synchronized (factoryLock) {
return logFactory;
}
}
public void setLogFactory(LogFactory logFactory) {
// change the log factory
GeronimoLogFactory.logFactory = logFactory;
// update all known logs to use instances of the new factory
Set logs = getInstances();
for (Iterator iterator = logs.iterator(); iterator.hasNext();) {
GeronimoLog log = (GeronimoLog) iterator.next();
log.setLog(logFactory.getInstance(log.getName()));
}
}
public Set getInstances() {
synchronized (factoryLock) {
Set logs = new HashSet();
for (Iterator iterator = instancesByClassLoader.values().iterator(); iterator.hasNext();) {
Map instanceMap = ((Map) iterator.next());
logs.addAll(instanceMap.values());
}
return logs;
}
}
public Log getInstance(Class clazz) throws LogConfigurationException {
synchronized (factoryLock) {
return getInstance(clazz.getName());
}
}
public Log getInstance(String name) throws LogConfigurationException {
synchronized (factoryLock) {
// get the instances for the context classloader
ClassLoader contextClassLoader = Thread.currentThread().getContextClassLoader();
Map instances = (Map) instancesByClassLoader.get(contextClassLoader);
if (instances == null) {
instances = new HashMap();
instancesByClassLoader.put(contextClassLoader, instances);
}
// get the log
Log log = (Log) instances.get(name);
if (log == null) {
log = new GeronimoLog(name, logFactory.getInstance(name));
instances.put(name, log);
}
return log;
}
}
public void release() {
synchronized (factoryLock) {
// TODO rethink this - it works for now
// for (Iterator maps = instancesByClassLoader.values().iterator(); maps.hasNext();) {
// Map instances = (Map) maps.next();
// for (Iterator logs = instances.values().iterator(); logs.hasNext();) {
// GeronimoLog log = (GeronimoLog) logs.next();
// log.setLog(null);
//
// }
// }
instancesByClassLoader.clear();
}
}
public Object getAttribute(String name) {
synchronized (factoryLock) {
return logFactory.getAttribute(name);
}
}
public String[] getAttributeNames() {
synchronized (factoryLock) {
return logFactory.getAttributeNames();
}
}
public void removeAttribute(String name) {
synchronized (factoryLock) {
logFactory.removeAttribute(name);
}
}
public void setAttribute(String name, Object value) {
synchronized (factoryLock) {
logFactory.setAttribute(name, value);
}
}
}