org.mule.transport.http.HttpRequestDispatcherWork.java Source code

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Here is the source code for org.mule.transport.http.HttpRequestDispatcherWork.java

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/*
 * $Id$
 * --------------------------------------------------------------------------------------
 * Copyright (c) MuleSoft, Inc.  All rights reserved.  http://www.mulesoft.com
 *
 * The software in this package is published under the terms of the CPAL v1.0
 * license, a copy of which has been included with this distribution in the
 * LICENSE.txt file.
 */
package org.mule.transport.http;

import org.mule.api.transport.NoReceiverForEndpointException;
import org.mule.transport.http.i18n.HttpMessages;
import org.mule.util.monitor.Expirable;

import java.net.Socket;
import java.util.concurrent.TimeUnit;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

/**
 * Dispatches HttpRequest to the appropriate MessageReceiver
 */
public class HttpRequestDispatcherWork implements Runnable, Expirable {

    private static Log logger = LogFactory.getLog(HttpRequestDispatcherWork.class);

    private HttpServerConnection httpServerConnection;
    private Socket socket;
    private HttpConnector httpConnector;

    public HttpRequestDispatcherWork(HttpConnector httpConnector, Socket socket) {
        if (httpConnector == null) {
            throw new IllegalArgumentException("HttpConnector can not be null");
        }
        if (socket == null) {
            throw new IllegalArgumentException("Socket can not be null");
        }
        this.httpConnector = httpConnector;
        this.socket = socket;
    }

    @Override
    public void run() {
        try {
            long keepAliveTimeout = httpConnector.getKeepAliveTimeout();
            String encoding = httpConnector.getMuleContext().getConfiguration().getDefaultEncoding();
            httpServerConnection = new HttpServerConnection(socket, encoding, httpConnector);
            do {
                try {

                    httpServerConnection.setKeepAlive(false);

                    // Only add a monitor if the timeout has been set
                    if (keepAliveTimeout > 0) {
                        httpConnector.getKeepAliveMonitor().addExpirable(keepAliveTimeout, TimeUnit.MILLISECONDS,
                                this);
                    }

                    RequestLine requestLine = httpServerConnection.getRequestLine();
                    if (requestLine != null) {
                        try {
                            HttpMessageReceiver httpMessageReceiver = httpConnector.lookupReceiver(socket,
                                    requestLine);
                            httpMessageReceiver.processRequest(httpServerConnection);
                        } catch (NoReceiverForEndpointException e) {
                            httpServerConnection.writeFailureResponse(HttpConstants.SC_NOT_FOUND,
                                    HttpMessages.cannotBindToAddress(httpServerConnection.getFullUri()).toString());
                        }
                    }
                } finally {
                    httpConnector.getKeepAliveMonitor().removeExpirable(this);
                    httpServerConnection.reset();
                }
            } while (httpServerConnection.isKeepAlive());
        } catch (HttpMessageReceiver.EmptyRequestException e) {
            logger.debug("Discarding request since content was empty");
        } catch (HttpMessageReceiver.FailureProcessingRequestException e) {
            logger.debug("Closing socket due to failure during request processing");
        } catch (Exception e) {
            httpConnector.getMuleContext().getExceptionListener().handleException(e);
        } finally {
            logger.debug("Closing HTTP connection.");
            if (httpServerConnection != null && httpServerConnection.isOpen()) {
                httpServerConnection.close();
                httpServerConnection = null;
            }
        }
    }

    @Override
    public void expired() {
        if (httpServerConnection.isOpen()) {
            httpServerConnection.close();
        }
    }

}