/**
* 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.management;
import org.apache.camel.AsyncCallback;
import org.apache.camel.Exchange;
import org.apache.camel.api.management.PerformanceCounter;
import org.apache.camel.management.mbean.ManagedPerformanceCounter;
import org.apache.camel.processor.DelegateAsyncProcessor;
import org.apache.camel.util.StopWatch;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* JMX enabled processor that uses the {@link org.apache.camel.management.mbean.ManagedCounter} for instrumenting
* processing of exchanges.
*
* @version
*/
public class InstrumentationProcessor extends DelegateAsyncProcessor {
private static final transient Logger LOG = LoggerFactory.getLogger(InstrumentationProcessor.class);
private PerformanceCounter counter;
private String type;
public InstrumentationProcessor() {
}
public InstrumentationProcessor(PerformanceCounter counter) {
this.counter = counter;
}
@Override
public String toString() {
return "Instrumentation" + (type != null ? ":" + type : "") + "[" + processor + "]";
}
public void setCounter(Object counter) {
ManagedPerformanceCounter mpc = null;
if (counter instanceof ManagedPerformanceCounter) {
mpc = (ManagedPerformanceCounter) counter;
}
if (this.counter instanceof DelegatePerformanceCounter) {
((DelegatePerformanceCounter) this.counter).setCounter(mpc);
} else if (mpc != null) {
this.counter = mpc;
} else if (counter instanceof PerformanceCounter) {
this.counter = (PerformanceCounter) counter;
}
}
@Override
public boolean process(final Exchange exchange, final AsyncCallback callback) {
// only record time if stats is enabled
final StopWatch watch = (counter != null && counter.isStatisticsEnabled()) ? new StopWatch() : null;
return super.process(exchange, new AsyncCallback() {
public void done(boolean doneSync) {
try {
// record end time
if (watch != null) {
recordTime(exchange, watch.stop());
}
} finally {
// and let the original callback know we are done as well
callback.done(doneSync);
}
}
@Override
public String toString() {
return InstrumentationProcessor.this.toString();
}
});
}
protected void recordTime(Exchange exchange, long duration) {
if (LOG.isTraceEnabled()) {
LOG.trace("{}Recording duration: {} millis for exchange: {}", new Object[]{type != null ? type + ": " : "", duration, exchange});
}
if (!exchange.isFailed() && exchange.getException() == null) {
counter.completedExchange(exchange, duration);
} else {
counter.failedExchange(exchange);
}
}
public String getType() {
return type;
}
public void setType(String type) {
this.type = type;
}
}