/**
* 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.metrics.counter;
import com.codahale.metrics.Counter;
import com.codahale.metrics.MetricRegistry;
import org.apache.camel.Exchange;
import org.apache.camel.Message;
import org.apache.camel.component.metrics.AbstractMetricsProducer;
import static org.apache.camel.component.metrics.MetricsConstants.HEADER_COUNTER_DECREMENT;
import static org.apache.camel.component.metrics.MetricsConstants.HEADER_COUNTER_INCREMENT;
public class CounterProducer extends AbstractMetricsProducer<CounterEndpoint> {
public CounterProducer(CounterEndpoint endpoint) {
super(endpoint);
}
@Override
protected void doProcess(Exchange exchange, CounterEndpoint endpoint, MetricRegistry registry, String metricsName) throws Exception {
Message in = exchange.getIn();
Counter counter = registry.counter(metricsName);
Long increment = endpoint.getIncrement();
Long decrement = endpoint.getDecrement();
Long finalIncrement = getLongHeader(in, HEADER_COUNTER_INCREMENT, increment);
Long finalDecrement = getLongHeader(in, HEADER_COUNTER_DECREMENT, decrement);
if (finalIncrement != null) {
counter.inc(finalIncrement);
} else if (finalDecrement != null) {
counter.dec(finalDecrement);
} else {
counter.inc();
}
}
}