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-rw-r--r--jetty-server/src/main/java/org/eclipse/jetty/server/handler/HandlerCollection.java220
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diff --git a/jetty-server/src/main/java/org/eclipse/jetty/server/handler/HandlerCollection.java b/jetty-server/src/main/java/org/eclipse/jetty/server/handler/HandlerCollection.java
new file mode 100644
index 0000000000..51fefd5fb6
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+++ b/jetty-server/src/main/java/org/eclipse/jetty/server/handler/HandlerCollection.java
@@ -0,0 +1,220 @@
+// ========================================================================
+// 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 javax.servlet.ServletException;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+import org.eclipse.jetty.server.Handler;
+import org.eclipse.jetty.server.Server;
+import org.eclipse.jetty.util.LazyList;
+import org.eclipse.jetty.util.MultiException;
+
+/* ------------------------------------------------------------ */
+/** A collection of handlers.
+ * <p>
+ * For derived HandlerCollections, the order or manner of calling
+ * the contained handlers is not defined. The default implementations
+ * calls all handlers in list order, regardless of
+ * the response status or exceptions.
+ * <p>
+ *
+ *
+ * @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 && i<handlers.length;i++)
+ {
+ if (handlers[i].getServer()!=server)
+ handlers[i].setServer(server);
+ }
+
+ // quasi atomic.... so don't go doing this under load on a SMP system.
+ _handlers = handlers;
+
+ for (int i=0;old_handlers!=null && i<old_handlers.length;i++)
+ {
+ if (old_handlers[i]!=null)
+ {
+ try
+ {
+ if (old_handlers[i].isStarted())
+ old_handlers[i].stop();
+ }
+ catch (Throwable e)
+ {
+ mex.add(e);
+ }
+ }
+ }
+
+ mex.ifExceptionThrowRuntime();
+ }
+
+ /* ------------------------------------------------------------ */
+ /*
+ * @see org.eclipse.jetty.server.server.EventHandler#handle(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
+ */
+ public void handle(String target, HttpServletRequest request, HttpServletResponse response)
+ throws IOException, ServletException
+ {
+ if (_handlers!=null && isStarted())
+ {
+ MultiException mex=null;
+
+ for (int i=0;i<_handlers.length;i++)
+ {
+ try
+ {
+ _handlers[i].handle(target,request, response);
+ }
+ catch(IOException e)
+ {
+ throw e;
+ }
+ catch(RuntimeException e)
+ {
+ throw e;
+ }
+ catch(Exception e)
+ {
+ if (mex==null)
+ mex=new MultiException();
+ mex.add(e);
+ }
+ }
+ if (mex!=null)
+ {
+ if (mex.size()==1)
+ throw new ServletException(mex.getThrowable(0));
+ else
+ throw new ServletException(mex);
+ }
+
+ }
+ }
+
+ /* ------------------------------------------------------------ */
+ /*
+ * @see org.eclipse.jetty.server.server.handler.AbstractHandler#doStart()
+ */
+ protected void doStart() throws Exception
+ {
+ MultiException mex=new MultiException();
+ if (_handlers!=null)
+ {
+ for (int i=0;i<_handlers.length;i++)
+ try{_handlers[i].start();}catch(Throwable e){mex.add(e);}
+ }
+ super.doStart();
+ mex.ifExceptionThrow();
+ }
+
+ /* ------------------------------------------------------------ */
+ /*
+ * @see org.eclipse.jetty.server.server.handler.AbstractHandler#doStop()
+ */
+ protected void doStop() throws Exception
+ {
+ MultiException mex=new MultiException();
+ try { super.doStop(); } catch(Throwable e){mex.add(e);}
+ if (_handlers!=null)
+ {
+ for (int i=_handlers.length;i-->0;)
+ 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 && i<h.length;i++)
+ h[i].setServer(server);
+
+ if (server!=null && server!=old_server)
+ server.getContainer().update(this, null,_handlers, "handler");
+
+ }
+
+ /* ------------------------------------------------------------ */
+ /* Add a handler.
+ * This implementation adds the passed handler to the end of the existing collection of handlers.
+ * @see org.eclipse.jetty.server.server.HandlerContainer#addHandler(org.eclipse.jetty.server.server.Handler)
+ */
+ public void addHandler(Handler handler)
+ {
+ setHandlers((Handler[])LazyList.addToArray(getHandlers(), handler, Handler.class));
+ }
+
+ /* ------------------------------------------------------------ */
+ public void removeHandler(Handler handler)
+ {
+ Handler[] handlers = getHandlers();
+
+ if (handlers!=null && handlers.length>0 )
+ setHandlers((Handler[])LazyList.removeFromArray(handlers, handler));
+ }
+
+ /* ------------------------------------------------------------ */
+ protected Object expandChildren(Object list, Class byClass)
+ {
+ Handler[] handlers = getHandlers();
+ for (int i=0;handlers!=null && i<handlers.length;i++)
+ list=expandHandler(handlers[i], list, byClass);
+ return list;
+ }
+
+
+}

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