/*
* Copyright 1999,2004-2005 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.catalina.ha.context;
import org.apache.catalina.core.StandardContext;
import org.apache.catalina.LifecycleException;
import org.apache.catalina.ha.CatalinaCluster;
import org.apache.catalina.tribes.tipis.ReplicatedMap;
import org.apache.catalina.tribes.Channel;
import org.apache.catalina.Loader;
import org.apache.catalina.core.ApplicationContext;
import org.apache.catalina.Globals;
import javax.servlet.ServletContext;
import java.util.HashMap;
import org.apache.catalina.tribes.tipis.LazyReplicatedMap;
/**
* @author Filip Hanik
* @version 1.0
*/
public class ReplicatedContext extends StandardContext {
private int mapSendOptions = Channel.SEND_OPTIONS_DEFAULT;
public static org.apache.commons.logging.Log log = org.apache.commons.logging.LogFactory.getLog( ReplicatedContext.class );
protected static long DEFAULT_REPL_TIMEOUT = 15000;//15 seconds
public synchronized void start() throws LifecycleException {
if ( this.started ) return;
try {
CatalinaCluster catclust = (CatalinaCluster)this.getCluster();
if (this.context == null) this.context = new ReplApplContext(this.getBasePath(), this);
if ( catclust != null ) {
ReplicatedMap map = new ReplicatedMap(this,catclust.getChannel(),DEFAULT_REPL_TIMEOUT,
getName(),getClassLoaders());
map.setChannelSendOptions(mapSendOptions);
((ReplApplContext)this.context).setAttributeMap(map);
if (getAltDDName() != null) context.setAttribute(Globals.ALT_DD_ATTR, getAltDDName());
}
super.start();
} catch ( Exception x ) {
log.error("Unable to start ReplicatedContext",x);
throw new LifecycleException("Failed to start ReplicatedContext",x);
}
}
public synchronized void stop() throws LifecycleException
{
ReplicatedMap map = (ReplicatedMap)((ReplApplContext)this.context).getAttributeMap();
if ( map!=null ) {
map.breakdown();
}
if ( !this.started ) return;
try {
} catch ( Exception x ){
log.error("Unable to stop ReplicatedContext",x);
throw new LifecycleException("Failed to stop ReplicatedContext",x);
} finally {
super.stop();
}
}
public void setMapSendOptions(int mapSendOptions) {
this.mapSendOptions = mapSendOptions;
}
public int getMapSendOptions() {
return mapSendOptions;
}
public ClassLoader[] getClassLoaders() {
Loader loader = null;
ClassLoader classLoader = null;
loader = this.getLoader();
if (loader != null) classLoader = loader.getClassLoader();
if ( classLoader == null ) classLoader = Thread.currentThread().getContextClassLoader();
if ( classLoader == Thread.currentThread().getContextClassLoader() ) {
return new ClassLoader[] {classLoader};
} else {
return new ClassLoader[] {classLoader,Thread.currentThread().getContextClassLoader()};
}
}
public ServletContext getServletContext() {
return ((ReplApplContext)context).getFacade();
}
protected static class ReplApplContext extends ApplicationContext {
public ReplApplContext(String basePath, StandardContext context) {
super(basePath,context);
}
protected ServletContext getFacade() {
return super.getFacade();
}
public HashMap getAttributeMap() {
return this.attributes;
}
public void setAttributeMap(HashMap map) {
this.attributes = map;
}
}
}