Package com.ericsson.ssa.container

Source Code of com.ericsson.ssa.container.ResponseDispatcher

/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright 1997-2009 Sun Microsystems, Inc. All rights reserved.
* Copyright (c) Ericsson AB, 2004-2008. 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.html
* or glassfish/bootstrap/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 glassfish/bootstrap/legal/LICENSE.txt.
* Sun designates this particular file as subject to the "Classpath" exception
* as provided by Sun in the GPL Version 2 section of the License file that
* accompanied this code.  If applicable, add the following below the License
* Header, with the fields enclosed by brackets [] replaced by your own
* identifying information: "Portions Copyrighted [year]
* [name of copyright owner]"
*
* Contributor(s):
*
* If you wish your version of this file to be governed by only the CDDL or
* 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.ericsson.ssa.container;

import com.ericsson.ssa.container.reporter.Reporter;
import com.ericsson.ssa.container.startup.SipMonitoring;
import com.ericsson.ssa.sip.Dispatcher;
import com.ericsson.ssa.sip.SipServletRequestImpl;
import com.ericsson.ssa.sip.SipServletResponseImpl;
import com.ericsson.ssa.utils.ByteBufferPool;

import com.sun.grizzly.SelectorHandler;
import com.sun.grizzly.TCPSelectorHandler;
import com.sun.grizzly.async.AsyncWriteCallbackHandler;

import java.io.IOException;

import java.nio.ByteBuffer;
import java.nio.channels.SelectionKey;


/**
* Common response dispatcher for TCP and TLS.
* @author Adrian Szwej
*
*/
public abstract class ResponseDispatcher implements Dispatcher {
    private final SelectorHandler streamHandler;
    private final SelectionKey key;
    private ByteBufferPool _bbPool;
    private AsyncWriteCallbackHandler _asyncWriteCallbackHandler;

    public ResponseDispatcher(SelectorHandler handler, SelectionKey key, ByteBufferPool bbPool, AsyncWriteCallbackHandler asyncWriteCallbackHandler) {
        streamHandler = handler;
        this.key = key;
        _bbPool = bbPool;
        _asyncWriteCallbackHandler = asyncWriteCallbackHandler;
    }

    public void dispatch(SipServletRequestImpl req) {
        throw new IllegalStateException("Not designed for connection reuse!");
    }

    public void dispatch(SipServletResponseImpl resp) {
        ByteBuffer bb = null;

        try {
            // TODO add a Hash table that makes keeps track if someone is
            // writing and in that case queue.
            resp.toBufferInit();
            bb = _bbPool.acquireBuffer();
            resp.toBuffer(bb);
            bb.flip();


            if (resp.toBufferHasRemaining()) {
                /**
                 *
                 * Synchronize only if the message is more than one bytebuffer.
                 *
                 */
                synchronized (key.channel()) {
                    write(bb, resp);

                    while (resp.toBufferHasRemaining()) {
                        bb = _bbPool.acquireBuffer();
                        resp.toBuffer(bb);
                        bb.flip();
                       
                        write(bb, resp);
                    }
                }
            } else {
                write(bb, resp);
            }
           
            // trigger reporter for network manager
            Reporter reporter = GrizzlyNetworkManager.getInstance().getReporter();
            if (reporter != null) {
                reporter.logOutgoingResponse(Reporter.InterceptionType.LAYER, resp, GrizzlyNetworkManager.class.getSimpleName());
            }

            // SipResponse
            if (SipMonitoring.isEnabled(SipMonitoring.NETWORK_MANAGER)) {
                if (((TCPSelectorHandler)streamHandler).getInet() != null) {
                GrizzlyNetworkManager.getInstance().incrEasSentSipResponses(
                        ((TCPSelectorHandler)streamHandler).getInet().getHostAddress(),
                        ((TCPSelectorHandler)streamHandler).getPort());
                } else {
                 GrizzlyNetworkManager.getInstance().incrEasSentSipResponses(
                         resp.getLocal().getAddress().getHostAddress(), -1);
                }
                GrizzlyNetworkManager.getInstance().incrRespOutStatCodeCounter(resp.getStatus());
            }
        } catch (Exception e) {
            handleIOException(bb, resp);
        }
    }

    protected abstract void write(ByteBuffer bb, SipServletResponseImpl resp)
        throws IOException;

    public SelectorHandler getStreamHandler() {
        return streamHandler;
    }

    public SelectionKey getKey() {
        return key;
    }

    protected AsyncWriteCallbackHandler getWriteCallbackHandler() {
        return _asyncWriteCallbackHandler;
    }
   
    protected void handleIOException(ByteBuffer bb, SipServletResponseImpl resp) {
        _bbPool.releaseBuffer(bb);

        Dispatcher d = resp.popDispatcher();

        if (d != null) {
            d.dispatch(resp);
        }
    }
}
TOP

Related Classes of com.ericsson.ssa.container.ResponseDispatcher

TOP
Copyright © 2018 www.massapi.com. All rights reserved.
All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.