package com.thinkbiganalytics.scheduler;
/*-
* #%L
* thinkbig-scheduler-quartz
* %%
* Copyright (C) 2017 ThinkBig Analytics
* %%
* 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.
* #L%
*/
import com.thinkbiganalytics.cluster.ClusterMessage;
import com.thinkbiganalytics.cluster.ClusterService;
import com.thinkbiganalytics.cluster.ClusterServiceMessageReceiver;
import javax.annotation.PostConstruct;
import javax.inject.Inject;
/**
* Receive Quartz Schedule messages from other kylo nodes
*/
public class QuartzClusterMessageReceiver implements ClusterServiceMessageReceiver {
@Inject
JobScheduler scheduler;
@Inject
QuartzClusterMessageSender quartzClusterMessageSender;
@Inject
ClusterService clusterService;
@PostConstruct
private void init(){
clusterService.subscribe(this);
}
private boolean accepts(ClusterMessage msg){
boolean accept = false;
try {
QuartzClusterMessage.QUARTZ_CLUSTER_MESSAGE_TYPE.valueOf(msg.getType());
accept = true;
}catch (IllegalArgumentException e){
}
return accept;
}
@Override
public void onMessageReceived(String from, ClusterMessage message) {
if(accepts(message)){
try {
quartzClusterMessageSender.setShouldSend(false);
QuartzClusterMessage.QUARTZ_CLUSTER_MESSAGE_TYPE type = QuartzClusterMessage.QUARTZ_CLUSTER_MESSAGE_TYPE.valueOf(message.getType());
switch (type) {
case QTZ_SCHEDULER_PAUSED:
scheduler.pauseScheduler();
break;
case QTZ_SCHEDULER_RESUMED:
scheduler.startScheduler();
break;
case QTZ_JOB_PAUSED:
scheduler.pauseTriggersOnJob((JobIdentifier) message.getMessage());
break;
case QTZ_JOB_RESUMED:
scheduler.resumeTriggersOnJob((JobIdentifier) message.getMessage());
break;
default:
break;
}
}catch (JobSchedulerException e) {
}
finally {
quartzClusterMessageSender.setShouldSend(true);
}
}
}
}