org.nuclos.common.activemq.NuclosHttpTransportFactory.java Source code

Introduction

Here is the source code for org.nuclos.common.activemq.NuclosHttpTransportFactory.java

Source

//Copyright (C) 2012  Novabit Informationssysteme GmbH
//
//This file is part of Nuclos.
//
//Nuclos is free software: you can redistribute it and/or modify
//it under the terms of the GNU Affero General Public License as published by
//the Free Software Foundation, either version 3 of the License, or
//(at your option) any later version.
//
//Nuclos is distributed in the hope that it will be useful,
//but WITHOUT ANY WARRANTY; without even the implied warranty of
//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//GNU Affero General Public License for more details.
//
//You should have received a copy of the GNU Affero General Public License
//along with Nuclos.  If not, see <http://www.gnu.org/licenses/>.
package org.nuclos.common.activemq;

import java.io.IOException;
import java.net.URI;
import java.net.URISyntaxException;

import org.apache.activemq.transport.Transport;
import org.apache.activemq.transport.http.HttpClientTransport;
import org.apache.activemq.transport.http.HttpTransportFactory;
import org.apache.activemq.wireformat.WireFormat;
import org.apache.http.client.HttpClient;
import org.nuclos.common.http.NuclosHttpClientFactory;

/**
 * A nuclos custom extension to ActiveMQ {@link HttpTransportFactory}.
 * <p>
 * This factory is bound to ActiveMQ scheme 'myhttp' in server and client (i.e.
 * in common). It uses the (apache httpcomponents) HttpClient instance in the 
 * Spring context in the client.
 * </p>
 * @author Thomas Pasch
 */
public class NuclosHttpTransportFactory extends HttpTransportFactory {

    private HttpClient httpClient;

    private NuclosHttpClientFactory factory;

    public NuclosHttpTransportFactory() {
    }

    final HttpClient getHttpClient() {
        if (httpClient == null) {
            // Use a separate HttpClient here because ActiveMQ will
            // always tried to set connection timeout to 30000 (30 seconds).
            // This is now fixed! (tp)         
            // factory = new NuclosHttpClientFactory();
            factory = NuclosHttpClientFactory.getInstance();
            httpClient = factory.getObject();
        }
        return httpClient;
    }

    @Override
    protected Transport createTransport(URI location, WireFormat wf) throws IOException {
        if (location.getScheme().equals("myhttp")) {
            try {
                location = new URI(location.toString().substring(2));
            } catch (URISyntaxException e) {
                throw new IOException(e);
            }
        }
        final HttpClientTransport result = (HttpClientTransport) super.createTransport(location, wf);
        result.setSoTimeout(NuclosHttpClientFactory.SO_TIMEOUT_MILLIS);
        final HttpClient httpClient = getHttpClient();
        result.setReceiveHttpClient(httpClient);
        result.setSendHttpClient(httpClient);
        return result;
    }

    @Override
    public void finalize() {
        if (factory != null) {
            factory.close();
        }
        factory = null;
        httpClient = null;
    }

}