org.fusesource.fabric.camel.DefaultLoadBalancerFactory Maven / Gradle / Ivy

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/**
 * Copyright (C) FuseSource, Inc.
 * http://fusesource.com
 *
 * Licensed 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.fusesource.fabric.camel;

import org.apache.camel.AsyncCallback;
import org.apache.camel.Exchange;
import org.apache.camel.Processor;
import org.apache.camel.processor.loadbalancer.LoadBalancer;
import org.apache.camel.processor.loadbalancer.RandomLoadBalancer;

import java.util.List;

public class DefaultLoadBalancerFactory implements LoadBalancerFactory {

    public LoadBalancer createLoadBalancer() {
        return new RandomLoadBalancer() {
            @Override
            public boolean process(Exchange exchange, AsyncCallback callback) {
                List list = getProcessors();
                if (!list.isEmpty()) {
                    return super.process(exchange, callback);
                } else {
                    throw new IllegalStateException("No processors found.");
                }
            }
        };
    }
}