com.idega.jbpm.context.exe.matcher.HibernateStringIdMatcher.java Source code

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Here is the source code for com.idega.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 com.idega.jbpm.context.exe.matcher;

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.JbpmException;
import org.jbpm.context.exe.JbpmTypeMatcher;
import org.springframework.beans.factory.annotation.Autowired;

import com.idega.jbpm.BPMContext;
import com.idega.jbpm.JbpmCallback;
import com.idega.util.expression.ELUtil;

/**
 * copied from jbpm. changes: idega-like resolving of jbpmContext session
 * factory resolved from ctx.getSession, than directly from
 * ctx.getSessionFactory
 * 
 */
public class HibernateStringIdMatcher implements JbpmTypeMatcher {

    private static final long serialVersionUID = 9098106085272332225L;
    @Autowired
    private BPMContext bpmContext;

    public boolean matches(final Object value) {

        Boolean res = getBpmContext().execute(new JbpmCallback() {

            public Object doInJbpm(JbpmContext context) throws JbpmException {
                @SuppressWarnings("unchecked")
                Class valueClass = value.getClass();
                if (value instanceof HibernateProxy) {
                    valueClass = valueClass.getSuperclass();
                }

                boolean matches = false;

                SessionFactory sessionFactory = context.getSession().getSessionFactory();

                if (sessionFactory != null) {
                    ClassMetadata classMetadata = sessionFactory.getClassMetadata(valueClass);
                    matches = ((classMetadata != null)
                            && (classMetadata.getIdentifierType().getClass() == StringType.class));
                }
                return matches;
            }
        });

        return res;
    }

    BPMContext getBpmContext() {

        if (bpmContext == null)
            ELUtil.getInstance().autowire(this);

        return bpmContext;
    }
}