com.jaemon.dingtalk.multi.algorithm.RoundRobinHandler Maven / Gradle / Ivy
/*
* Copyright ©2015-2020 Jaemon. All Rights Reserved.
*
* 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.jaemon.dingtalk.multi.algorithm;
import com.jaemon.dingtalk.dinger.DingerConfig;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.List;
/**
* 轮询算法
*
* @author Jaemon
* @since 3.0
*/
public class RoundRobinHandler implements AlgorithmHandler {
private static final Logger log = LoggerFactory.getLogger(RoundRobinHandler.class);
/** 索引值 */
private volatile int index = DEFAULT_INDEX;
@Override
public DingerConfig handler(List dingerConfigs, DingerConfig defaultDingerConfig) {
int size = dingerConfigs.size();
int idx = index;
synchronized (this) {
index++;
index = index >= size ? DEFAULT_INDEX : index;
if (log.isDebugEnabled()) {
log.debug("#{}# 当前使用第{}个机器人", algorithmId(), idx);
}
// System.out.println(String.format("#%s# 当前使用第%d个机器人", algorithmId(), idx));
}
return dingerConfigs.get(idx);
}
}