NIWSRoundRobinRule.java

/*
*
* Copyright 2013 Netflix, Inc.
*
* 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 com.netflix.niws.client;

import com.netflix.loadbalancer.BaseLoadBalancer;
import com.netflix.loadbalancer.RoundRobinRule;
import com.netflix.loadbalancer.Server;

/**
 * This class essentially contains the RoundRobinRule class defined in the loadbalancer package
 * @author stonse
 *
 */
public class NIWSRoundRobinRule extends AbstractNIWSLoadBalancerRule{

    RoundRobinRule rule = new RoundRobinRule();
    
    @Override
    public void initWithNiwsConfig(
            IClientConfig clientConfig) {
       rule = new RoundRobinRule();        
    }

    @Override
    public Server choose(BaseLoadBalancer lb, Object key) {       
        if (rule!=null){
            return rule.choose(lb, key);
        }else{
            throw new IllegalArgumentException("This class has not been initialized with the RoundRobinRule class");
        }
    }

}