/**
 *  Copyright (C) 2007 KRONK Ltd.
 *
 *  This program 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 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 Lesser General Public License for more details.
 *
 *  The full text of the license is available at http://www.gnu.org/copyleft/lesser.html
 */
package net.kronkltd.oxf.processor.generator;


import org.apache.log4j.Logger;
import org.orbeon.oxf.common.OXFException;
import org.orbeon.oxf.pipeline.api.ExternalContext;
import org.orbeon.oxf.processor.ProcessorImpl;
import org.orbeon.oxf.processor.ProcessorInputOutputInfo;
import org.orbeon.oxf.processor.ProcessorOutput;
import org.orbeon.oxf.util.LoggerFactory;
import org.orbeon.oxf.xml.XMLUtils;
import org.xml.sax.ContentHandler;

import java.util.*;

public class CookieGenerator extends ProcessorImpl
{
	static Logger logger = LoggerFactory.createLogger(CookieGenerator.class);
	
	public CookieGenerator() {
		addOutputInfo(new ProcessorInputOutputInfo(OUTPUT_DATA));
	}
	
	public ProcessorOutput createOutput(String name) {
        ProcessorOutput output = new ProcessorImpl.ProcessorOutputImpl(getClass(), name) {
            public void readImpl(org.orbeon.oxf.pipeline.api.PipelineContext context, final ContentHandler contentHandler) {
                try {
                    ExternalContext externalContext = (ExternalContext) context.getAttribute(org.orbeon.oxf.pipeline.api.PipelineContext.EXTERNAL_CONTEXT);
                    ExternalContext.Request request = externalContext.getRequest();
                    Map headers = request.getHeaderMap();
                    String cookieString = (String) headers.get("cookie");
                    
                    contentHandler.startDocument();
                    contentHandler.startElement("", "cookies", "cookies", XMLUtils.EMPTY_ATTRIBUTES);
                                        
                    if (cookieString != null) {
	                    String[] cookies = cookieString.split(";");
	                    
	                    for(int i=0; i < cookies.length; i++) {
	                    	String cookie = cookies[i];
	                    	String[] parts = cookie.split("=", 2);
	                    	char[] key = parts[0].trim().toCharArray();
	                    	char[] value = parts[1].trim().toCharArray();
	                    	
	                    	contentHandler.startElement("", "cookie", "cookie", XMLUtils.EMPTY_ATTRIBUTES);
	                    	
	                    	contentHandler.startElement("", "name", "name", XMLUtils.EMPTY_ATTRIBUTES);
	                    	contentHandler.characters(key, 0, key.length);
	                    	contentHandler.endElement("", "name", "name");
	                    	
	                    	contentHandler.startElement("", "value", "value", XMLUtils.EMPTY_ATTRIBUTES);
	                    	contentHandler.characters(value, 0, value.length);
	                    	contentHandler.endElement("", "value", "value");
	                    	
	                    	contentHandler.endElement("", "cookie", "cookie");
	                    }
                    }
                    
                    contentHandler.endElement("", "cookies", "cookies");
                    contentHandler.endDocument();

                } catch (Exception e) {
                    throw new OXFException(e);
                }
            }

        };
        addOutput(OUTPUT_DATA, output);
        return output;
	}
}