/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.oozie.event.messaging;
import org.apache.hadoop.util.ReflectionUtils;
import org.apache.oozie.client.event.SLAEvent;
import org.apache.oozie.client.event.message.CoordinatorActionMessage;
import org.apache.oozie.client.event.message.WorkflowJobMessage;
import org.apache.oozie.client.event.message.SLAMessage;
import org.apache.oozie.event.CoordinatorActionEvent;
import org.apache.oozie.event.WorkflowJobEvent;
import org.apache.oozie.service.Services;
/**
* Factory for constructing messages and retrieving the serializer
*/
public class MessageFactory {
public static final String OOZIE_MESSAGE_FORMAT = Services.get().getConf().get("message.format", "json");
public static final String OOZIE_MESSAGE_SERIALIZE = "oozie.jms.serialize.";
private static class MessageSerializerHolder {
private static String messageSerializerInstance = Services
.get()
.getConf()
.get(OOZIE_MESSAGE_SERIALIZE + OOZIE_MESSAGE_FORMAT,
"org.apache.oozie.event.messaging.JSONMessageSerializer");
public static final MessageSerializer INSTANCE;
static {
try {
INSTANCE = (MessageSerializer) ReflectionUtils.newInstance(Class.forName(messageSerializerInstance),
null);
}
catch (ClassNotFoundException cnfe) {
throw new IllegalStateException("Could not construct the serializer ", cnfe);
}
}
}
/**
* Gets the configured serializer
*
* @return
*/
public static MessageSerializer getMessageSerializer() {
return MessageSerializerHolder.INSTANCE;
}
/**
* Constructs and returns the workflow job message for workflow job event
*
* @param wfJobEvent the workflow job event
* @return
*/
public static WorkflowJobMessage createWorkflowJobMessage(WorkflowJobEvent wfJobEvent) {
WorkflowJobMessage wfJobMessage = new WorkflowJobMessage(wfJobEvent.getEventStatus(), wfJobEvent.getId(),
wfJobEvent.getParentId(), wfJobEvent.getStartTime(), wfJobEvent.getEndTime(), wfJobEvent.getStatus(),
wfJobEvent.getUser(), wfJobEvent.getAppName(), wfJobEvent.getErrorCode(), wfJobEvent.getErrorMessage());
return wfJobMessage;
}
/**
* Constructs and returns the coordinator action message for coordinator
* action event
*
* @param coordActionEvent the coordinator action event
* @return
*/
public static CoordinatorActionMessage createCoordinatorActionMessage(CoordinatorActionEvent coordActionEvent) {
CoordinatorActionMessage coordActionMessage = new CoordinatorActionMessage(coordActionEvent.getEventStatus(),
coordActionEvent.getId(), coordActionEvent.getParentId(), coordActionEvent.getStartTime(),
coordActionEvent.getEndTime(), coordActionEvent.getNominalTime(), coordActionEvent.getStatus(),
coordActionEvent.getUser(), coordActionEvent.getAppName(), coordActionEvent.getMissingDeps(),
coordActionEvent.getErrorCode(), coordActionEvent.getErrorMessage());
return coordActionMessage;
}
/**
* Constructs and returns SLA notification message
* @param event SLA event
* @return
*/
public static SLAMessage createSLAMessage(SLAEvent event) {
SLAMessage slaMessage = new SLAMessage(event.getEventStatus(), event.getSLAStatus(), event.getAppType(),
event.getAppName(), event.getUser(), event.getId(), event.getParentId(), event.getNominalTime(),
event.getExpectedStart(), event.getActualStart(), event.getExpectedEnd(), event.getActualEnd(),
event.getExpectedDuration(), event.getActualDuration(), event.getNotificationMsg(), event.getUpstreamApps());
return slaMessage;
}
}