/*
* Copyright 1999-2015 dangdang.com.
* <p>
* 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.
* </p>
*/
package com.dangdang.ddframe.job.lite.internal.instance;
import com.dangdang.ddframe.job.lite.internal.listener.AbstractJobListener;
import com.dangdang.ddframe.job.lite.internal.listener.AbstractListenerManager;
import com.dangdang.ddframe.job.lite.internal.schedule.JobRegistry;
import com.dangdang.ddframe.job.reg.base.CoordinatorRegistryCenter;
import org.apache.curator.framework.recipes.cache.TreeCacheEvent.Type;
/**
* 作业触发监听管理器.
*
* @author zhangliang
*/
public final class TriggerListenerManager extends AbstractListenerManager {
private final String jobName;
private final InstanceNode instanceNode;
private final InstanceService instanceService;
public TriggerListenerManager(final CoordinatorRegistryCenter regCenter, final String jobName) {
super(regCenter, jobName);
this.jobName = jobName;
instanceNode = new InstanceNode(jobName);
instanceService = new InstanceService(regCenter, jobName);
}
@Override
public void start() {
addDataListener(new JobTriggerStatusJobListener());
}
class JobTriggerStatusJobListener extends AbstractJobListener {
@Override
protected void dataChanged(final String path, final Type eventType, final String data) {
if (!InstanceOperation.TRIGGER.name().equals(data) || !instanceNode.isLocalInstancePath(path) || Type.NODE_UPDATED != eventType) {
return;
}
instanceService.clearTriggerFlag();
if (!JobRegistry.getInstance().isShutdown(jobName) && !JobRegistry.getInstance().isJobRunning(jobName)) {
// TODO 目前是作业运行时不能触发, 未来改为堆积式触发
JobRegistry.getInstance().getJobScheduleController(jobName).triggerJob();
}
}
}
}