ProcessInstanceInfoDao.java

/*
 * #%L
 * Processiva Business Processes Platform
 * %%
 * Copyright (C) 2012 Cohesiva
 * %%
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * This program 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 General Public License for more details.
 * 
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 * #L%
 */
package com.cohesiva.processes.db.jbpm;

import java.math.BigInteger;
import java.util.ArrayList;
import java.util.List;

import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import javax.persistence.EntityTransaction;
import javax.persistence.PersistenceUnit;
import javax.persistence.Query;

import org.jbpm.persistence.processinstance.ProcessInstanceInfo;
import org.springframework.stereotype.Repository;
import org.springframework.transaction.annotation.Transactional;

@Repository
public class ProcessInstanceInfoDao {
	@PersistenceUnit(unitName = "jbpmWebAppPU")
	private EntityManagerFactory emf;

	@Transactional
	public List<ProcessInstanceInfo> getRunningInstances(String processId) {
		EntityManager em = emf.createEntityManager();

		EntityTransaction tx = em.getTransaction();
		tx.begin();

		Query query = em.createNativeQuery(
				"Select * from processinstanceinfo where processid = '"
						+ processId + "'", ProcessInstanceInfo.class);

		List<ProcessInstanceInfo> list = query.getResultList();

		tx.commit();

		return list;
	}

	@Transactional
	public List<ProcessInstanceInfo> getRunningInstances() {
		EntityManager em = emf.createEntityManager();

		EntityTransaction tx = em.getTransaction();
		tx.begin();

		Query query = em.createNativeQuery("Select * from processinstanceinfo",
				ProcessInstanceInfo.class);

		List<ProcessInstanceInfo> list = query.getResultList();

		tx.commit();

		return list;
	}

	@Transactional
	public List<Long> getRunningInstancesIds() {
		EntityManager em = emf.createEntityManager();

		EntityTransaction tx = em.getTransaction();
		tx.begin();

		Query query = em
				.createNativeQuery("Select instanceid from processinstanceinfo");

		List<BigInteger> list = query.getResultList();

		List<Long> result = new ArrayList<Long>();

		for (BigInteger bigInt : list) {
			result.add(bigInt.longValue());
		}

		tx.commit();

		return result;
	}
}