KaleoDefinitionModelListener.java

/**
 * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
 *
 * This library 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 library 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.
 */

package com.liferay.portal.workflow.kaleo.internal.model.listener;

import com.liferay.portal.kernel.exception.ModelListenerException;
import com.liferay.portal.kernel.messaging.Message;
import com.liferay.portal.kernel.messaging.MessageBusUtil;
import com.liferay.portal.kernel.model.BaseModelListener;
import com.liferay.portal.kernel.model.ModelListener;
import com.liferay.portal.kernel.service.ServiceContext;
import com.liferay.portal.kernel.service.ServiceContextThreadLocal;
import com.liferay.portal.kernel.transaction.TransactionCommitCallbackUtil;
import com.liferay.portal.workflow.kaleo.model.KaleoDefinition;

import java.util.concurrent.Callable;

import org.osgi.service.component.annotations.Component;

/**
 * @author Kenneth Chang
 */
@Component(immediate = true, service = ModelListener.class)
public class KaleoDefinitionModelListener
	extends BaseModelListener<KaleoDefinition> {

	@Override
	public void onAfterCreate(final KaleoDefinition kaleoDefinition)
		throws ModelListenerException {

		TransactionCommitCallbackUtil.registerCallback(
			new Callable<Void>() {

				@Override
				public Void call() throws Exception {
					Message message = new Message();

					message.put("command", "create");
					message.put("name", kaleoDefinition.getName());
					message.put(
						"serviceContext", getServiceContext(kaleoDefinition));
					message.put("version", kaleoDefinition.getVersion());

					MessageBusUtil.sendMessage(
						"liferay/kaleo_definition", message);

					return null;
				}

			});
	}

	@Override
	public void onAfterRemove(final KaleoDefinition kaleoDefinition)
		throws ModelListenerException {

		if (kaleoDefinition == null) {
			return;
		}

		TransactionCommitCallbackUtil.registerCallback(
			new Callable<Void>() {

				@Override
				public Void call() throws Exception {
					try {
						Message message = new Message();

						message.put("command", "delete");
						message.put("name", kaleoDefinition.getName());
						message.put(
							"serviceContext",
							getServiceContext(kaleoDefinition));
						message.put("version", kaleoDefinition.getVersion());

						MessageBusUtil.sendMessage(
							"liferay/kaleo_definition", message);
					}
					catch (Exception e) {
						throw new ModelListenerException(e);
					}

					return null;
				}

			});
	}

	protected ServiceContext getServiceContext(
		KaleoDefinition kaleoDefinition) {

		ServiceContext serviceContext =
			ServiceContextThreadLocal.getServiceContext();

		if (serviceContext == null) {
			serviceContext = new ServiceContext();

			serviceContext.setCompanyId(kaleoDefinition.getCompanyId());
			serviceContext.setUserId(kaleoDefinition.getUserId());
		}

		return serviceContext;
	}

}