fr.eoit.util.DownloadUtil.java Source code

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Here is the source code for fr.eoit.util.DownloadUtil.java

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/**
 * Copyright (C) 2012 Picon software
 *
 * This program 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; either version 2 of the License, or
 * (at your option) any later version.
 *
 * 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.
    
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
package fr.eoit.util;

import android.content.Context;
import fr.eo.exception.DownloadException;
import fr.eo.xml.util.UrlDownloader;
import org.apache.http.Header;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.IOException;
import java.io.InputStream;
import java.util.zip.GZIPInputStream;

/**
 * @author picon.software
 *
 */
public final class DownloadUtil implements UrlDownloader {

    private static final Logger LOGGER = LoggerFactory.getLogger(DownloadUtil.class);

    @Override
    public InputStream urlToInputStream(Context context, String url) throws DownloadException {
        try {
            HttpClient httpclient = new DefaultHttpClient();
            //HttpHost proxy = new HttpHost("httppxlyon1.srv.volvo.com", 8080);
            //httpclient.getParams().setParameter(ConnRoutePNames.DEFAULT_PROXY, proxy);

            HttpGet httpget = new HttpGet(url);
            httpget.addHeader("Accept-Encoding", "gzip");

            HttpResponse response;

            response = httpclient.execute(httpget);
            LOGGER.debug(response.getStatusLine().toString());

            HttpEntity entity = response.getEntity();

            if (entity != null) {

                InputStream instream = entity.getContent();
                Header contentEncoding = response.getFirstHeader("Content-Encoding");
                if (contentEncoding != null && contentEncoding.getValue().equalsIgnoreCase("gzip")) {
                    LOGGER.debug("Accepting gzip for url : " + url);
                    instream = new GZIPInputStream(instream);
                }

                return instream;
            }
        } catch (ClientProtocolException e) {
            throw new DownloadException(e);
        } catch (IOException e) {
            throw new DownloadException(e);
        }

        return null;
    }
}