org.n52.oxf.util.web.ProxyAwareHttpClient.java Source code

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Here is the source code for org.n52.oxf.util.web.ProxyAwareHttpClient.java

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/**
 * Copyright (C) 2012-2015 52North Initiative for Geospatial Open Source
 * Software GmbH
 *
 * This program is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License version 2 as publishedby the Free
 * Software Foundation.
 *
 * If the program is linked with libraries which are licensed under one of the
 * following licenses, the combination of the program with the linked library is
 * not considered a "derivative work" of the program:
 *
 *     - Apache License, version 2.0
 *     - Apache Software License, version 1.0
 *     - GNU Lesser General Public License, version 3
 *     - Mozilla Public License, versions 1.0, 1.1 and 2.0
 *     - Common Development and Distribution License (CDDL), version 1.0
 *
 * Therefore the distribution of the program linked with libraries licensed under
 * the aforementioned licenses, is permitted by the copyright holders if the
 * distribution is compliant with both the GNU General Public License version 2
 * and the aforementioned licenses.
 *
 * This program 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 General Public License for more details.
 */
package org.n52.oxf.util.web;

import java.net.ProxySelector;

import org.apache.http.conn.ClientConnectionManager;
import org.apache.http.conn.scheme.SchemeRegistry;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.impl.conn.ProxySelectorRoutePlanner;

public class ProxyAwareHttpClient extends HttpClientDecorator {

    /**
     * Decorates the given {@link HttpClient} to be proxy aware. This decorated instance will use the standard
     * JRE proxy selector to obtain proxy information.
     * 
     * @param httpclient
     *        the {@link HttpClient} to decorate with proxy awareness.
     * @see ProxySelectorRoutePlanner
     */
    public ProxyAwareHttpClient(HttpClient httpclient) {
        super(httpclient);
        decorateProxyAwareness();
    }

    private void decorateProxyAwareness() {
        DefaultHttpClient clientToDecorate = getHttpClientToDecorate();
        clientToDecorate.setRoutePlanner(createProxyPlanner());
    }

    private ProxySelectorRoutePlanner createProxyPlanner() {
        DefaultHttpClient decoratedHttpClient = getHttpClientToDecorate();
        ClientConnectionManager connectionManager = decoratedHttpClient.getConnectionManager();
        SchemeRegistry schemeRegistry = connectionManager.getSchemeRegistry();
        ProxySelector defaultProxySelector = ProxySelector.getDefault();
        return new ProxySelectorRoutePlanner(schemeRegistry, defaultProxySelector);
    }

}