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//========================================================================
//$Id: HandlerCollection.java,v 1.5 2005/11/11 22:55:39 gregwilkins Exp $
//Copyright 2004-2005 Mort Bay Consulting Pty. Ltd.
//------------------------------------------------------------------------
//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.mortbay.jetty.handler;

import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.mortbay.jetty.EofException;
import org.mortbay.jetty.Handler;
import org.mortbay.jetty.Server;
import org.mortbay.util.LazyList;
import org.mortbay.util.MultiException;

/* ------------------------------------------------------------ */
/** A collection of handlers.  
 * For each request, all handler are called, regardless of 
 * the response status or exceptions.
 *  
 * @author gregw
 * @org.apache.xbean.XBean
 */
public class HandlerCollection extends AbstractHandlerContainer
{
    private Handler[] _handlers;

    /* ------------------------------------------------------------ */
    public HandlerCollection()
    {
        super();
    }

    /* ------------------------------------------------------------ */
    /**
     * @return Returns the handlers.
     */
    public Handler[] getHandlers()
    {
        return _handlers;
    }
    
    /* ------------------------------------------------------------ */
    /**
     * 
     * @param handlers The handlers to set.
     */
    public void setHandlers(Handler[] handlers)
    {
        Handler [] old_handlers = _handlers==null?null:(Handler[])_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();
    }
    
    /* ------------------------------------------------------------ */
    public void setServer(Server server)
    {
        Server old_server=getServer();
        
        super.setServer(server);

        Handler[] h=getHandlers();
        for (int i=0;h!=null && i0 )
            setHandlers((Handler[])LazyList.removeFromArray(handlers, handler));
    }

    /* ------------------------------------------------------------ */
    protected Object expandChildren(Object list, Class byClass)
    {
        Handler[] handlers = getHandlers();
        for (int i=0;handlers!=null && i