org.eclipse.jetty.server.handler.HandlerCollection Maven / Gradle / Ivy
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// ========================================================================
// Copyright (c) 2004-2009 Mort Bay Consulting Pty. Ltd.
// ------------------------------------------------------------------------
// All rights reserved. This program and the accompanying materials
// are made available under the terms of the Eclipse Public License v1.0
// and Apache License v2.0 which accompanies this distribution.
// The Eclipse Public License is available at
// http://www.eclipse.org/legal/epl-v10.html
// The Apache License v2.0 is available at
// http://www.opensource.org/licenses/apache2.0.php
// You may elect to redistribute this code under either of these licenses.
// ========================================================================
package org.eclipse.jetty.server.handler;
import java.io.IOException;
import java.util.concurrent.CountDownLatch;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.eclipse.jetty.server.Handler;
import org.eclipse.jetty.server.Request;
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.util.LazyList;
import org.eclipse.jetty.util.MultiException;
/* ------------------------------------------------------------ */
/** A collection of handlers.
*
* The default implementations calls all handlers in list order,
* regardless of the response status or exceptions. Derived implementation
* may alter the order or the conditions of calling the contained
* handlers.
*
*
* @org.apache.xbean.XBean
*/
public class HandlerCollection extends AbstractHandlerContainer
{
private final boolean _mutableWhenRunning;
private volatile Handler[] _handlers;
private boolean _parallelStart=false;
/* ------------------------------------------------------------ */
public HandlerCollection()
{
_mutableWhenRunning=false;
}
/* ------------------------------------------------------------ */
public HandlerCollection(boolean mutableWhenRunning)
{
_mutableWhenRunning=mutableWhenRunning;
}
/* ------------------------------------------------------------ */
/**
* @return Returns the handlers.
*/
public Handler[] getHandlers()
{
return _handlers;
}
/* ------------------------------------------------------------ */
/**
*
* @param handlers The handlers to set.
*/
public void setHandlers(Handler[] handlers)
{
if (!_mutableWhenRunning && isStarted())
throw new IllegalStateException(STARTED);
Handler [] old_handlers = _handlers==null?null:_handlers.clone();
if (getServer()!=null)
getServer().getContainer().update(this, old_handlers, handlers, "handler");
Server server = getServer();
MultiException mex = new MultiException();
for (int i=0;handlers!=null && i0;)
try{_handlers[i].stop();}catch(Throwable e){mex.add(e);}
}
mex.ifExceptionThrow();
}
/* ------------------------------------------------------------ */
@Override
public void setServer(Server server)
{
if (isStarted())
throw new IllegalStateException(STARTED);
Server old_server=getServer();
super.setServer(server);
Handler[] h=getHandlers();
for (int i=0;h!=null && i0 )
setHandlers((Handler[])LazyList.removeFromArray(handlers, handler));
}
/* ------------------------------------------------------------ */
@Override
protected Object expandChildren(Object list, Class byClass)
{
Handler[] handlers = getHandlers();
for (int i=0;handlers!=null && i