org.apache.camel.processor.loadbalancer.RandomLoadBalancer 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 java.util.Random;
import org.apache.camel.Exchange;
import org.apache.camel.Processor;
/**
* Implements the random load balancing policy
*
* @version
*/
public class RandomLoadBalancer extends QueueLoadBalancer {
private static final Random RANDOM = new Random();
private transient int index;
protected synchronized Processor chooseProcessor(List processors, Exchange exchange) {
int size = processors.size();
if (size == 0) {
return null;
} else if (size == 1) {
// there is only 1
return processors.get(0);
}
// pick a random
index = RANDOM.nextInt(size);
return processors.get(index);
}
public int getLastChosenProcessorIndex() {
return index;
}
public String toString() {
return "RandomLoadBalancer";
}
}