org.arrow.service.listener.ConditionStartEventApplicationListener.java Source code

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Here is the source code for org.arrow.service.listener.ConditionStartEventApplicationListener.java

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/*
 * Copyright 2014 Christian Weber
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.arrow.service.listener;

import java.util.Map;

import org.arrow.runtime.api.StartEventSpecification;
import org.arrow.runtime.execution.service.data.StartEventRepository;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationListener;
import org.springframework.stereotype.Component;
import org.springframework.transaction.annotation.Transactional;
import org.arrow.model.event.startevent.impl.ConditionalStartEvent;
import org.arrow.runtime.message.event.ConditionApplicationEvent;
import org.arrow.runtime.RuntimeService;

/**
 * {@link ApplicationListener} used to start {@link ConditionalStartEvent}
 * instances.
 * 
 * @author christian.weber
 * @since 1.0.0
 */
@Component
public class ConditionStartEventApplicationListener implements ApplicationListener<ConditionApplicationEvent> {

    @Autowired
    private ApplicationContext context;

    /**
     * {@inheritDoc}
     */
    @Override
    @Transactional
    public void onApplicationEvent(ConditionApplicationEvent event) {

        ConditionApplicationEvent.ConditionHolder holder = event.getSource();

        // due to cycle reference
        StartEventRepository startEventRepository = context.getBean(StartEventRepository.class);
        RuntimeService runtimeService = context.getBean(RuntimeService.class);

        Iterable<? extends StartEventSpecification> events;
        events = startEventRepository.findAllConditionalStartEvents(holder.getBeanName());

        Map<String, Object> variables = holder.getContext().getVariables();
        for (StartEventSpecification startEvent : events) {
            runtimeService.startProcessByStartEvent(startEvent, variables);
        }
    }

}