ForeverFirstSelector.java

/*
 * Copyright 2017, OpenSkywalking Organization 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.
 *
 * Project repository: https://github.com/OpenSkywalking/skywalking
 */

package org.skywalking.apm.collector.stream.worker.selector;

import java.util.List;
import org.skywalking.apm.collector.stream.worker.WorkerRef;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * @author pengys5
 */
public class ForeverFirstSelector implements WorkerSelector<WorkerRef> {

    private final Logger logger = LoggerFactory.getLogger(ForeverFirstSelector.class);

    @Override public WorkerRef select(List<WorkerRef> members, Object message) {
        logger.debug("member size: {}", members.size());
        return members.get(0);
    }
}