org.apache.camel.processor.loadbalancer.WeightedRoundRobinLoadBalancer 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.processor.loadbalancer;
import java.util.List;
import org.apache.camel.AsyncProcessor;
import org.apache.camel.Exchange;
public class WeightedRoundRobinLoadBalancer extends WeightedLoadBalancer {
int counter = -1;
public WeightedRoundRobinLoadBalancer(List distributionRatios) {
super(distributionRatios);
}
@Override
protected synchronized AsyncProcessor chooseProcessor(AsyncProcessor[] processors, Exchange exchange) {
int counter = this.counter;
List ratios = getRatios();
while (true) {
if (++counter >= ratios.size()) {
counter = 0;
}
DistributionRatio ratio = ratios.get(counter);
if (ratio.decrement()) {
this.counter = lastIndex = counter;
decrementSum();
return processors[counter];
}
}
}
protected void reset() {
super.reset();
counter = -1;
}
}