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/*
 * 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.context.exe.matcher;

import org.hibernate.SessionFactory;
import org.hibernate.metadata.ClassMetadata;
import org.hibernate.proxy.HibernateProxy;
import org.hibernate.type.StandardBasicTypes;
import org.jbpm.JbpmContext;
import org.jbpm.context.exe.JbpmTypeMatcher;

public class HibernateLongIdMatcher implements JbpmTypeMatcher {

  private static final long serialVersionUID = 1L;

  public boolean matches(Object value) {
    JbpmContext jbpmContext = JbpmContext.getCurrentJbpmContext();
    if (jbpmContext != null) {
      Class valueClass = value.getClass();
      if (value instanceof HibernateProxy) {
        valueClass = valueClass.getSuperclass();
      }
      SessionFactory sessionFactory = jbpmContext.getSessionFactory();
      if (sessionFactory != null) {  	  
        ClassMetadata classMetadata = sessionFactory.getClassMetadata(valueClass);
        return classMetadata != null
          && classMetadata.getIdentifierType() == StandardBasicTypes.LONG;
      }
    }
    return false;
  }

}