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Open source implementation of the AS2 standard for signed encrypted and compressed document transfer

There is a newer version: 2.10.1

/**
 * 
 */
package org.openas2.cmd.processor;

import java.io.CharArrayWriter;
import java.io.IOException;
import java.io.StringReader;

import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;

import org.xml.sax.Attributes;
import org.xml.sax.ContentHandler;
import org.xml.sax.EntityResolver;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;

/**
 * used to parse  commands from the socket command processor
 * message format 
 *   <command userid="abc" pasword="xyz"> the actual command </command>
 * 
 * @author joseph mcverry
 *
 */

public class SocketCommandParser extends DefaultHandler
		implements
			EntityResolver,
			ContentHandler {

	SAXParser parser;
	private String userid;
	private String password;
	private String commandText;

	/**     simple string processor    */
	protected CharArrayWriter contents = new CharArrayWriter();

	/** construct the factory with a xml parser
	 * @throws Exception an xml parser exception 
	 */

	public SocketCommandParser() throws Exception {
		SAXParserFactory spf = SAXParserFactory.newInstance();
		parser = spf.newSAXParser();

	}

	public void parse(String inLine) throws SAXException, IOException {
		userid = "";
		password = "";
		commandText = "";
		contents.reset();

		StringReader sr = new StringReader(inLine);
		parser.parse(new InputSource(sr), this);
	}

	/**
	 * Method handles #PCDATA
	 * @param ch array
	 * @param start position in array where next has been placed
	 * @param length int
	 *
	 *
	 */
	public void characters(char ch[], int start, int length) {

		contents.write(ch, start, length);

	}

	public void startElement(String uri, String localName, String qName,
			Attributes attributes) throws SAXException {

		if (qName.equals("command")) {
			userid = attributes.getValue("id");
			password = attributes.getValue("password");
		}
	}

	public String getCommandText() {
		return commandText;
	}

	public String getPassword() {
		return password;
	}

	public String getUserid() {
		return userid;
	}

	public void endElement(String uri, String localName, String qName) throws SAXException {
		if (qName.equals("command")) {
			this.commandText = contents.toString();
		}
		else contents.flush();
	}

}