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xSocket http extension
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/*
 *  Copyright (c) xsocket.org, 2006 - 2008. All rights reserved.
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License as published by the Free Software Foundation; either
 *  version 2.1 of the License, or (at your option) any later version.
 *
 *  This library 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
 *  Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * Please refer to the LGPL license at: http://www.gnu.org/copyleft/lesser.txt
 * The latest copy of this software may be found on http://www.xsocket.org/
 */
package org.xsocket.connection.http.client;

import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.net.URISyntaxException;
import java.net.URLEncoder;
import java.nio.channels.FileChannel;
import java.util.logging.Level;
import java.util.logging.Logger;

import org.xsocket.connection.http.HttpRequest;
import org.xsocket.connection.http.HttpRequestHeader;



/**
 * POST request
 * 
 * @author [email protected]
 */
public final class PostRequest extends HttpRequest  {
	
	private static final Logger LOG = Logger.getLogger(PostRequest.class.getName());
	
	
	
	/**
	 * constructor 
	 * 
	 * @param uri   the uri 
	 */
	public PostRequest(String uri) throws URISyntaxException {
		super(new HttpRequestHeader("POST", uri));
	}
	


	/**
	 * constructor 
	 * 
	 * @param uri          the uri
	 * @param contentType  the content type 
	 * @param dataSource   the body 
	 * @throws IOException if an error occurs by reading the body 
	 */
	public PostRequest(String uri, String contentType, FileChannel dataSource) throws IOException, URISyntaxException {
		super("POST", uri, contentType, dataSource);
	}

	
	/**
	 * constructor 
	 * 
	 * @param uri           the uri
	 * @param contentType   the content type
	 * @param body          the body 
	 */
	public PostRequest(String uri, String contentType, String body) throws IOException, URISyntaxException {
		super("POST", uri, contentType, body);
	}

	
	
	/**
	 * constructor
	 *  
	 * @param uri             the uri 
	 * @param formParameters  the FORM parameter
	 */
	public PostRequest(String uri, String[] formParameters) throws IOException, URISyntaxException {
		super(new HttpRequestHeader("POST", uri));
		setContentType("application/x-www-form-urlencoded; charset=utf-8");
		
		StringBuilder sb = new StringBuilder();
		for (String param : formParameters) {
			try {
				String[] kvp = param.split("=");
				sb.append(URLEncoder.encode(kvp[0], "UTF-8") + "=" + URLEncoder.encode(kvp[1], "UTF-8") + "&");
			} catch (UnsupportedEncodingException usec) {
				if (LOG.isLoggable(Level.FINE)) {
					LOG.fine("error occured by encoding param " + param + " " + usec.toString());
				}
			}
		}
		
		String body = sb.toString();
		if (body.length() > 0) {
			body = body.substring(0, body.length() - 1);
		}
	
		setBodyDataSource(body);
	}
}