de.catma.document.source.contenthandler.HttpResponseHandler.java Source code

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Here is the source code for de.catma.document.source.contenthandler.HttpResponseHandler.java

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/*   
 *   CATMA Computer Aided Text Markup and Analysis
 *   
 *   Copyright (C) 2009-2013  University Of Hamburg
 *
 *   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 3 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, see <http://www.gnu.org/licenses/>.
 */
package de.catma.document.source.contenthandler;

import java.io.IOException;

import org.apache.http.Header;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.StatusLine;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpResponseException;
import org.apache.http.client.ResponseHandler;
import org.apache.http.util.EntityUtils;

public class HttpResponseHandler implements ResponseHandler<byte[]> {

    private String encoding = null;
    private String contentType;

    public byte[] handleResponse(HttpResponse response) throws ClientProtocolException, IOException {
        Header[] headers = response.getHeaders("Content-Type");
        if (headers.length > 0) {
            contentType = headers[0].getValue();
        }
        // TODO: Content-Encoding, hanle compressed content

        StatusLine statusLine = response.getStatusLine();
        HttpEntity entity = response.getEntity();
        if (statusLine.getStatusCode() >= 300) {
            try {
                EntityUtils.toByteArray(entity);
            } catch (IOException notOfInterest) {
            }
            throw new HttpResponseException(statusLine.getStatusCode(), statusLine.getReasonPhrase());
        }
        return entity == null ? null : EntityUtils.toByteArray(entity);
    }

    public String getEncoding() {
        return encoding;
    }

    public String getContentType() {
        return contentType;
    }
}