org.jbpm.context.exe.matcher.HibernateStringIdMatcher.java Source code

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Here is the source code for org.jbpm.context.exe.matcher.HibernateStringIdMatcher.java

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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.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.hibernate.SessionFactory;
import org.hibernate.metadata.ClassMetadata;
import org.hibernate.proxy.HibernateProxy;
import org.hibernate.type.StringType;
import org.jbpm.JbpmContext;
import org.jbpm.context.exe.JbpmTypeMatcher;

public class HibernateStringIdMatcher implements JbpmTypeMatcher {

    private static final long serialVersionUID = 1L;

    public boolean matches(Object value) {
        boolean matches = false;
        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);
                matches = ((classMetadata != null)
                        && (classMetadata.getIdentifierType().getClass() == StringType.class));
            }
        } else {
            log.debug("no current context so valueClass cannot be stored as a string-id-ref to a hibernate object");
            matches = false;
        }
        return matches;
    }

    private static Log log = LogFactory.getLog(HibernateStringIdMatcher.class);
}