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  /*
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
   *
   * Copyright (c) 2007-2010 Oracle and/or its affiliates. All rights reserved.
   *
   * The contents of this file are subject to the terms of either the GNU
   * General Public License Version 2 only ("GPL") or the Common Development
   * and Distribution License("CDDL") (collectively, the "License").  You
   * may not use this file except in compliance with the License.  You can
  * obtain a copy of the License at
  * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
  * or packager/legal/LICENSE.txt.  See the License for the specific
  * language governing permissions and limitations under the License.
  *
  * When distributing the software, include this License Header Notice in each
  * file and include the License file at packager/legal/LICENSE.txt.
  *
  * GPL Classpath Exception:
  * Oracle designates this particular file as subject to the "Classpath"
  * exception as provided by Oracle in the GPL Version 2 section of the License
  * file that accompanied this code.
  *
  * Modifications:
  * If applicable, add the following below the License Header, with the fields
  * enclosed by brackets [] replaced by your own identifying information:
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  *
  * Contributor(s):
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  * only the GPL Version 2, indicate your decision by adding "[Contributor]
  * elects to include this software in this distribution under the [CDDL or GPL
  * Version 2] license."  If you don't indicate a single choice of license, a
  * recipient has the option to distribute your version of this file under
  * either the CDDL, the GPL Version 2 or to extend the choice of license to
  * its licensees as provided above.  However, if you add GPL Version 2 code
  * and therefore, elected the GPL Version 2 license, then the option applies
  * only if the new code is made subject to such option by the copyright
  * holder.
  */
 package com.sun.enterprise.web.connector.grizzly.comet;
 
Default NotificationHandler that uses the same a Grizzly Pipeline to execute the notification process.

Author(s):
Jeanfrancois Arcand
 
 public class DefaultNotificationHandler implements NotificationHandler {
 
     private final static Logger logger = SelectorThread.logger();
    
The com.sun.enterprise.web.connector.grizzly.Pipeline used to execute threaded notification.
 
     protected Pipeline pipeline;
    
true if the caller of CometContext.notify should block when notifying other CometHandler.
 
     protected boolean blockingNotification = false;

    
Set the com.sun.enterprise.web.connector.grizzly.Pipeline used for notifying the CometHandler.
 
     protected void setPipeline(Pipeline pipeline) {
         this. = pipeline;
     }

    
Return true if the invoker of notify() should block when notifying Comet Handlers.
 
     public boolean isBlockingNotification() {
         return ;
     }

    
Set to true if the invoker of notify() should block when notifying Comet Handlers.
 
     public void setBlockingNotification(boolean blockingNotification) {
         this. = blockingNotification;
     }

    
Notify all CometHandler.

Parameters:
cometEvent the CometEvent used to notify CometHandler
iteratorHandlers An iterator over a list of CometHandler
 
     @SuppressWarnings("unchecked")
     public void notify(final CometEvent cometEventfinal Iterator<CometHandleriteratorHandlersthrows IOException {
        if ( ||  == null) {
            notify0(cometEventiteratorHandlers);
        } else {
            .addTask(new TaskBase() {
                public void doTask() throws IOException {
                    notify0(cometEventiteratorHandlers);
                }
            });
        }
    }
    protected void notify0(CometEvent cometEventIterator<CometHandleriteratorHandlers)
            throws IOException {
        CometHandler cometHandler;
        while (iteratorHandlers.hasNext()) {
            cometHandler = iteratorHandlers.next();
            try {
                notify0(cometEventcometHandler);
            } catch (Throwable ex) {
                try {
                    cometEvent.getCometContext().resumeCometHandler(cometHandlertrue);
                } catch (Throwable t) {
                    if (.isLoggable(.)) {
                        .log(."Resume phase failed: "t);
                    }
                }
                .log(."Notification failed: "ex);
            }
        }
    }

    
Notify a single CometHandler.

Parameters:
cometEvent the CometEvent used to notify CometHandler
cometHandler a CometHandler
    @SuppressWarnings("unchecked")
    public void notify(final CometEvent cometEventfinal CometHandler cometHandler)
            throws IOException {
        if ( ||  == null) {
            notify0(cometEventcometHandler);
        } else {
            .addTask(new TaskBase() {
                public void doTask() throws IOException {
                    try {
                        notify0(cometEventcometHandler);
                    } catch (Throwable ex) {
                        try {
                            cometEvent.getCometContext().resumeCometHandler(cometHandlertrue);
                        } catch (Throwable t) {
                            .log(."Resume phase failed: "ex);
                        }
                        .log(."Notification failed: "ex);
                    }
                }
            });
        }
    }

    
Notify a CometHandler. CometEvent.INTERRUPT -> CometHandler.onInterrupt CometEvent.NOTIFY -> CometHandler.onEvent CometEvent.INITIALIZE -> CometHandler.onInitialize CometEvent.TERMINATE -> CometHandler.onTerminate CometEvent.READ -> CometHandler.onEvent CometEvent.WRITE -> CometHandler.onEvent

Parameters:
attachment An object shared amongst CometHandler.
cometHandler The CometHandler to invoke.
    protected void notify0(CometEvent cometEventCometHandler cometHandler)
            throws IOException {
        try {
            switch (cometEvent.getType()) {
                case .:
                    cometHandler.onInterrupt(cometEvent);
                    break;
                case .:
                case .:
                case .:
                    if (cometHandler instanceof DefaultConcurrentCometHandler) {
                        ((DefaultConcurrentCometHandlercometHandler).enqueueEvent(cometEvent);
                        break;
                    }
                    if (cometEvent.getCometContext().isActive(cometHandler)) {
                        synchronized (cometHandler) {
                            cometHandler.onEvent(cometEvent);
                        }
                    }
                    break;
                case .:
                    cometHandler.onInitialize(cometEvent);
                    break;
                case .:
                    synchronized (cometHandler) {
                        cometHandler.onTerminate(cometEvent);
                    }
                    break;
                default:
                    throw new IllegalStateException();
            }
        } catch (Throwable ex) {
            try {
                cometEvent.getCometContext().resumeCometHandler(cometHandler);
            } catch (Throwable t) {
                .log(."Resume phase failed:"t);
            }
            .log(."Notification failed:"ex);
        }
    }
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