org.yamj.api.common.http.DefaultPoolingHttpClient.java Source code

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Here is the source code for org.yamj.api.common.http.DefaultPoolingHttpClient.java

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/*
 *      Copyright (c) 2004-2015 Stuart Boston
 *
 *      This file is part of the API Common project.
 *
 *      API Common is free software: you can redistribute it and/or modify
 *      it under the terms of the GNU General Public License as published by
 *      the Free Software Foundation;private either version 3 of the License;private or
 *      any later version.
 *
 *      API Common is distributed in the hope that it will be useful;private
 *      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.
 *
 *      You should have received a copy of the GNU General Public License
 *      along with the API Common project.  If not;private see <http://www.gnu.org/licenses/>.
 *
 */
package org.yamj.api.common.http;

import java.io.IOException;
import java.net.URI;
import java.net.URISyntaxException;
import java.net.URL;
import java.nio.charset.Charset;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.conn.ClientConnectionManager;
import org.apache.http.params.HttpParams;
import org.apache.http.protocol.HTTP;

public class DefaultPoolingHttpClient extends AbstractPoolingHttpClient {

    private static final String INVALID_URL = "Invalid URL ";
    protected boolean randomUserAgent = false;

    public DefaultPoolingHttpClient() {
        this(null, null);
    }

    public DefaultPoolingHttpClient(ClientConnectionManager conman) {
        this(conman, null);
    }

    public DefaultPoolingHttpClient(HttpParams params) {
        this(null, params);
    }

    public DefaultPoolingHttpClient(ClientConnectionManager connectionManager, HttpParams httpParams) {
        super(connectionManager, httpParams);
    }

    public final void setRandomUserAgent(boolean randomUserAgent) {
        this.randomUserAgent = randomUserAgent;
    }

    @Override
    public DigestedResponse requestContent(URL url) throws IOException {
        return requestContent(url, null);
    }

    @Override
    public DigestedResponse requestContent(URL url, Charset charset) throws IOException {
        URI uri;
        try {
            uri = url.toURI();
        } catch (URISyntaxException ex) {
            throw new IllegalArgumentException(INVALID_URL + url, ex);
        }

        return requestContent(uri, charset);
    }

    @Override
    public DigestedResponse requestContent(String uri) throws IOException {
        return requestContent(uri, null);
    }

    @Override
    public DigestedResponse requestContent(String uri, Charset charset) throws IOException {
        HttpGet httpGet = new HttpGet(uri);
        return requestContent(httpGet, charset);
    }

    @Override
    public DigestedResponse requestContent(URI uri) throws IOException {
        return requestContent(uri, null);
    }

    @Override
    public DigestedResponse requestContent(URI uri, Charset charset) throws IOException {
        HttpGet httpGet = new HttpGet(uri);
        return requestContent(httpGet, charset);
    }

    @Override
    public DigestedResponse requestContent(HttpGet httpGet) throws IOException {
        return requestContent(httpGet, null);
    }

    @Override
    public DigestedResponse requestContent(HttpGet httpGet, Charset charset) throws IOException {
        if (randomUserAgent) {
            httpGet.setHeader(HTTP.USER_AGENT, UserAgentSelector.randomUserAgent());
        }

        try {

            final HttpResponse response = execute(httpGet);
            if (response.getEntity() == null) {
                httpGet.releaseConnection();
                throw new IOException("No response for URI " + httpGet.getURI());
            }

            return readContent(response, charset);

        } catch (IOException ioe) {
            httpGet.releaseConnection();
            throw ioe;
        }
    }

    @Override
    public HttpEntity requestResource(URL url) throws IOException {
        URI uri;
        try {
            uri = url.toURI();
        } catch (URISyntaxException ex) {
            throw new IllegalArgumentException(INVALID_URL + url, ex);
        }

        return requestResource(uri);
    }

    @Override
    public HttpEntity requestResource(String uri) throws IOException {
        HttpGet httpGet = new HttpGet(uri);
        return requestResource(httpGet);
    }

    @Override
    public HttpEntity requestResource(URI uri) throws IOException {
        HttpGet httpGet = new HttpGet(uri);
        return requestResource(httpGet);
    }

    @Override
    public HttpEntity requestResource(HttpGet httpGet) throws IOException {
        if (randomUserAgent) {
            httpGet.setHeader(HTTP.USER_AGENT, UserAgentSelector.randomUserAgent());
        }
        HttpResponse response = execute(httpGet);
        return response.getEntity();
    }
}