org.apache.camel.component.quartz2.CamelJob Maven / Gradle / Ivy
/**
* 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.quartz2;
import java.util.Collection;
import org.apache.camel.CamelContext;
import org.apache.camel.CamelExchangeException;
import org.apache.camel.DelegateEndpoint;
import org.apache.camel.Endpoint;
import org.apache.camel.Exchange;
import org.apache.camel.Route;
import org.quartz.Job;
import org.quartz.JobDetail;
import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;
import org.quartz.JobKey;
import org.quartz.SchedulerContext;
import org.quartz.SchedulerException;
import org.quartz.TriggerKey;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* This is a Quartz Job that is scheduled by QuartzEndpoint's Consumer and will call it to
* produce a QuartzMessage sending to a route.
*
*/
public class CamelJob implements Job {
private static final Logger LOG = LoggerFactory.getLogger(CamelJob.class);
@Override
public void execute(JobExecutionContext context) throws JobExecutionException {
Exchange exchange = null;
try {
if (LOG.isDebugEnabled()) {
LOG.debug("Running CamelJob jobExecutionContext={}", context);
}
CamelContext camelContext = getCamelContext(context);
QuartzEndpoint endpoint = lookupQuartzEndpoint(camelContext, context);
exchange = endpoint.createExchange();
exchange.setIn(new QuartzMessage(exchange, context));
endpoint.getConsumerLoadBalancer().process(exchange);
if (exchange.getException() != null) {
throw new JobExecutionException(exchange.getException());
}
} catch (Exception e) {
if (exchange != null) {
LOG.error(CamelExchangeException.createExceptionMessage("Error processing exchange", exchange, e));
} else {
LOG.error("Failed to execute CamelJob.", e);
}
// and rethrow to let quartz handle it
if (e instanceof JobExecutionException) {
throw (JobExecutionException) e;
}
throw new JobExecutionException(e);
}
}
protected CamelContext getCamelContext(JobExecutionContext context) throws JobExecutionException {
SchedulerContext schedulerContext = getSchedulerContext(context);
String camelContextName = context.getMergedJobDataMap().getString(QuartzConstants.QUARTZ_CAMEL_CONTEXT_NAME);
CamelContext result = (CamelContext)schedulerContext.get(QuartzConstants.QUARTZ_CAMEL_CONTEXT + "-" + camelContextName);
if (result == null) {
throw new JobExecutionException("No CamelContext could be found with name: " + camelContextName);
}
return result;
}
protected SchedulerContext getSchedulerContext(JobExecutionContext context) throws JobExecutionException {
try {
return context.getScheduler().getContext();
} catch (SchedulerException e) {
throw new JobExecutionException("Failed to obtain scheduler context for job " + context.getJobDetail().getKey());
}
}
protected QuartzEndpoint lookupQuartzEndpoint(CamelContext camelContext, JobExecutionContext quartzContext) throws JobExecutionException {
TriggerKey triggerKey = quartzContext.getTrigger().getKey();
JobDetail jobDetail = quartzContext.getJobDetail();
JobKey jobKey = jobDetail.getKey();
if (LOG.isDebugEnabled()) {
LOG.debug("Looking up existing QuartzEndpoint with triggerKey={}", triggerKey);
}
// check all active routes for the quartz endpoint this task matches
// as we prefer to use the existing endpoint from the routes
for (Route route : camelContext.getRoutes()) {
Endpoint endpoint = route.getEndpoint();
if (endpoint instanceof DelegateEndpoint) {
endpoint = ((DelegateEndpoint)endpoint).getEndpoint();
}
if (endpoint instanceof QuartzEndpoint) {
QuartzEndpoint quartzEndpoint = (QuartzEndpoint) endpoint;
TriggerKey checkTriggerKey = quartzEndpoint.getTriggerKey();
if (LOG.isTraceEnabled()) {
LOG.trace("Checking route endpoint={} with checkTriggerKey={}", quartzEndpoint, checkTriggerKey);
}
if (triggerKey.equals(checkTriggerKey)
|| (jobDetail.requestsRecovery() && jobKey.getGroup().equals(checkTriggerKey.getGroup()) && jobKey.getName().equals(checkTriggerKey.getName()))) {
return quartzEndpoint;
}
}
}
// fallback and lookup existing from registry (eg maybe a @Consume POJO with a quartz endpoint, and thus not from a route)
String endpointUri = quartzContext.getMergedJobDataMap().getString(QuartzConstants.QUARTZ_ENDPOINT_URI);
QuartzEndpoint result = null;
// Even though the same camelContext.getEndpoint call, but if/else display different log.
if (camelContext.hasEndpoint(endpointUri) != null) {
if (LOG.isDebugEnabled()) {
LOG.debug("Getting Endpoint from camelContext.");
}
result = camelContext.getEndpoint(endpointUri, QuartzEndpoint.class);
} else if ((result = searchForEndpointMatch(camelContext, endpointUri)) != null) {
if (LOG.isDebugEnabled()) {
LOG.debug("Found match for endpoint URI = " + endpointUri + " by searching endpoint list.");
}
} else {
LOG.warn("Cannot find existing QuartzEndpoint with uri: {}. Creating new endpoint instance.", endpointUri);
result = camelContext.getEndpoint(endpointUri, QuartzEndpoint.class);
}
if (result == null) {
throw new JobExecutionException("No QuartzEndpoint could be found with endpointUri: " + endpointUri);
}
return result;
}
protected QuartzEndpoint searchForEndpointMatch(CamelContext camelContext, String endpointUri) {
Collection endpoints = camelContext.getEndpoints();
for (Endpoint endpoint : endpoints) {
if (endpointUri.equals(endpoint.getEndpointUri())) {
return (QuartzEndpoint) endpoint;
}
}
return null;
}
}