/**
* 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.camel.component.nagios;
import java.util.EventObject;
import com.googlecode.jsendnsca.core.Level;
import com.googlecode.jsendnsca.core.MessagePayload;
import com.googlecode.jsendnsca.core.NagiosPassiveCheckSender;
import com.googlecode.jsendnsca.core.NagiosSettings;
import org.apache.camel.management.EventNotifierSupport;
import org.apache.camel.management.event.CamelContextStartupFailureEvent;
import org.apache.camel.management.event.CamelContextStopFailureEvent;
import org.apache.camel.management.event.ExchangeFailedEvent;
import org.apache.camel.management.event.ExchangeFailureHandledEvent;
import org.apache.camel.management.event.ExchangeRedeliveryEvent;
import org.apache.camel.management.event.ServiceStartupFailureEvent;
import org.apache.camel.management.event.ServiceStopFailureEvent;
/**
* An {@link org.apache.camel.spi.EventNotifier} which sends alters to Nagios.
*
* @version $Revision: 962513 $
*/
public class NagiosEventNotifier extends EventNotifierSupport {
private NagiosSettings nagiosSettings;
private NagiosConfiguration configuration;
private NagiosPassiveCheckSender sender;
private String serviceName = "Camel";
private String hostName = "localhost";
public void notify(EventObject eventObject) throws Exception {
// create message payload to send
String message = eventObject.toString();
Level level = determineLevel(eventObject);
MessagePayload payload = new MessagePayload(getHostName(), level.ordinal(), getServiceName(), message);
if (log.isInfoEnabled()) {
log.info("Sending notification to Nagios: " + payload.getMessage());
}
sender.send(payload);
if (log.isTraceEnabled()) {
log.trace("Sending notification done");
}
}
public boolean isEnabled(EventObject eventObject) {
return true;
}
protected Level determineLevel(EventObject eventObject) {
// failures is considered critical
if (eventObject instanceof ExchangeFailedEvent
|| eventObject instanceof CamelContextStartupFailureEvent
|| eventObject instanceof CamelContextStopFailureEvent
|| eventObject instanceof ServiceStartupFailureEvent
|| eventObject instanceof ServiceStopFailureEvent) {
return Level.CRITICAL;
}
// the failure was handled so its just a warning
// and warn when a redelivery attempt is done
if (eventObject instanceof ExchangeFailureHandledEvent
|| eventObject instanceof ExchangeRedeliveryEvent) {
return Level.WARNING;
}
// default to OK
return Level.OK;
}
public NagiosConfiguration getConfiguration() {
if (configuration == null) {
configuration = new NagiosConfiguration();
}
return configuration;
}
public void setConfiguration(NagiosConfiguration configuration) {
this.configuration = configuration;
}
public NagiosSettings getNagiosSettings() {
return nagiosSettings;
}
public void setNagiosSettings(NagiosSettings nagiosSettings) {
this.nagiosSettings = nagiosSettings;
}
public String getServiceName() {
return serviceName;
}
public void setServiceName(String serviceName) {
this.serviceName = serviceName;
}
public String getHostName() {
return hostName;
}
public void setHostName(String hostName) {
this.hostName = hostName;
}
@Override
protected void doStart() throws Exception {
if (nagiosSettings == null) {
nagiosSettings = configuration.getNagiosSettings();
}
sender = new NagiosPassiveCheckSender(nagiosSettings);
log.info("Using " + configuration);
}
@Override
protected void doStop() throws Exception {
sender = null;
}
}