com.twinsoft.convertigo.beans.transactions.HttpTransaction.java Source code

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Here is the source code for com.twinsoft.convertigo.beans.transactions.HttpTransaction.java

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/*
 * Copyright (c) 2001-2011 Convertigo SA.
 *
 * This program 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.
 *
 * 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/>.
 *
 * $URL$
 * $Author$
 * $Revision$
 * $Date$
 */

package com.twinsoft.convertigo.beans.transactions;

import java.io.UnsupportedEncodingException;

import org.apache.commons.codec.binary.Base64;
import org.w3c.dom.CDATASection;
import org.w3c.dom.Element;

import com.twinsoft.convertigo.beans.connectors.HttpConnector;
import com.twinsoft.convertigo.engine.Engine;
import com.twinsoft.convertigo.engine.EngineStatistics;

public class HttpTransaction extends AbstractHttpTransaction {

    private static final long serialVersionUID = -3501999011297702027L;

    private static int HTTP_DATA_ENCODING_STRING = 0;
    private static int HTTP_DATA_ENCODING_BASE64 = 1;

    private int dataEncoding = HTTP_DATA_ENCODING_STRING;

    public int getDataEncoding() {
        return dataEncoding;
    }

    public void setDataEncoding(int dataEncoding) {
        this.dataEncoding = dataEncoding;
    }

    public HttpTransaction() {
        super();
    }

    @Override
    public void makeDocument(byte[] httpData) throws Exception {
        String t = context.statistics.start(EngineStatistics.GENERATE_DOM);

        try {
            String stringData = "";

            if (httpData == null || httpData.length == 0) {
                // nothing to do
            } else if (dataEncoding == HTTP_DATA_ENCODING_STRING) {
                String charset = ((HttpConnector) parent).getCharset();

                if (charset == null) {
                    charset = "ascii";
                }
                try {
                    stringData = new String(httpData, charset);
                } catch (UnsupportedEncodingException e) {
                    Engine.logBeans.warn(
                            "(HttpTransaction) Unsupported Encoding to decode the response, use ascii instead", e);
                    stringData = new String(httpData, "ascii");
                }
            } else if (dataEncoding == HTTP_DATA_ENCODING_BASE64) {
                stringData = Base64.encodeBase64String(httpData);
            } else {
                throw new IllegalArgumentException("Unknown data encoding: " + dataEncoding);
            }

            CDATASection cdata = context.outputDocument.createCDATASection(stringData); // remove TextCodec.UTF8Encode for #453
            Element outputDocumentRootElement = context.outputDocument.getDocumentElement();
            outputDocumentRootElement.appendChild(cdata);
        } finally {
            context.statistics.stop(t);
        }
    }
}