// 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 com.cloud.event;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
import javax.annotation.PostConstruct;
import javax.inject.Inject;
import org.apache.log4j.Logger;
import org.springframework.beans.factory.NoSuchBeanDefinitionException;
import org.springframework.stereotype.Component;
import org.apache.cloudstack.framework.events.EventBus;
import org.apache.cloudstack.framework.events.EventBusException;
import com.cloud.dc.DataCenterVO;
import com.cloud.dc.HostPodVO;
import com.cloud.dc.dao.DataCenterDao;
import com.cloud.dc.dao.HostPodDao;
import com.cloud.server.ManagementService;
import com.cloud.utils.component.ComponentContext;
@Component
public class AlertGenerator {
private static final Logger s_logger = Logger.getLogger(AlertGenerator.class);
private static DataCenterDao s_dcDao;
private static HostPodDao s_podDao;
protected static EventBus s_eventBus = null;
@Inject
DataCenterDao dcDao;
@Inject
HostPodDao podDao;
public AlertGenerator() {
}
@PostConstruct
void init() {
s_dcDao = dcDao;
s_podDao = podDao;
}
public static void publishAlertOnEventBus(String alertType, long dataCenterId, Long podId, String subject, String body) {
try {
s_eventBus = ComponentContext.getComponent(EventBus.class);
} catch (NoSuchBeanDefinitionException nbe) {
return; // no provider is configured to provide events bus, so just return
}
org.apache.cloudstack.framework.events.Event event =
new org.apache.cloudstack.framework.events.Event(ManagementService.Name, EventCategory.ALERT_EVENT.getName(), alertType, null, null);
Map<String, String> eventDescription = new HashMap<String, String>();
DataCenterVO dc = s_dcDao.findById(dataCenterId);
HostPodVO pod = s_podDao.findById(podId);
eventDescription.put("event", alertType);
if (dc != null) {
eventDescription.put("dataCenterId", dc.getUuid());
} else {
eventDescription.put("dataCenterId", null);
}
if (pod != null) {
eventDescription.put("podId", pod.getUuid());
} else {
eventDescription.put("podId", null);
}
eventDescription.put("subject", subject);
eventDescription.put("body", body);
String eventDate = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss Z").format(new Date());
eventDescription.put("eventDateTime", eventDate);
event.setDescription(eventDescription);
try {
s_eventBus.publish(event);
} catch (EventBusException e) {
s_logger.warn("Failed to publish alert on the the event bus.");
}
}
}