/*
 * JBoss, Home of Professional Open Source
 * Copyright 2005, JBoss Inc., and individual contributors as indicated
 * by the @authors tag. See the copyright.txt in the distribution for a
 * full listing of individual contributors.
 *
 * This 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 software 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 software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */
package org.jbpm.jpdl.internal.activity;

import org.hibernate.LockMode;
import org.jbpm.jpdl.internal.xml.JpdlParser;
import org.jbpm.pvm.internal.xml.Parse;
import org.w3c.dom.Element;


/**
 * @author Tom Baeyens
 */
public class JoinBinding extends JpdlBinding {
  
  private static final String MULTIPLICITY = "multiplicity";
  
  private static final String LOCKMODE = "lockmode";

  public JoinBinding() {
    super("join");
  }

  public Object parseJpdl(Element element, Parse parse, JpdlParser parser) {
    JoinActivity joinActivity = new JoinActivity();
                            
    if (element.hasAttribute(MULTIPLICITY)) {
      String multiplicictyText = element.getAttribute(MULTIPLICITY);
      try {
        int multiplicity = Integer.parseInt(multiplicictyText);
        joinActivity.setMultiplicity(multiplicity);
      } catch (NumberFormatException e) {
        parse.addProblem(MULTIPLICITY + " " + multiplicictyText + " is not a valid integer", element);
      }
    }

    if (element.hasAttribute(LOCKMODE)) {
      String lockModeText = element.getAttribute(LOCKMODE);
      LockMode lockMode = LockMode.parse(lockModeText.toUpperCase());
      if (lockMode==null) {
        parse.addProblem(LOCKMODE + " " + lockModeText + " is not a valid lock mode", element);
      } else {
        joinActivity.setLockMode(lockMode);
      }
    }

    return joinActivity;
  }

}