com.baidu.fsg.uid.worker.DisposableWorkerIdAssigner Maven / Gradle / Ivy

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/*
 * Copyright (c) 2017 Baidu, Inc. All Rights Reserve.
 *
 * 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.baidu.fsg.uid.worker;

import com.baidu.fsg.uid.utils.DockerUtils;
import com.baidu.fsg.uid.utils.NetUtils;
import com.baidu.fsg.uid.worker.dao.WorkerNodeDAO;
import com.baidu.fsg.uid.worker.entity.WorkerNodeEntity;
import org.apache.commons.lang3.RandomUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.transaction.annotation.Transactional;

import javax.annotation.Resource;

public class DisposableWorkerIdAssigner implements WorkerIdAssigner {
    private static final Logger LOGGER = LoggerFactory.getLogger(DisposableWorkerIdAssigner.class);

    @Resource
    private WorkerNodeDAO workerNodeDAO;

    @Transactional
    public long assignWorkerId() {
        // build worker node entity
        WorkerNodeEntity workerNodeEntity = buildWorkerNode();

        // add worker node for new (ignore the same IP + PORT)
        workerNodeDAO.addWorkerNode(workerNodeEntity);
        LOGGER.info("Add worker node:" + workerNodeEntity);

        return workerNodeEntity.getId();
    }

    private WorkerNodeEntity buildWorkerNode() {
        WorkerNodeEntity workerNodeEntity = new WorkerNodeEntity();
        if (DockerUtils.isDocker()) {
            workerNodeEntity.setType(WorkerNodeType.CONTAINER.value());
            workerNodeEntity.setHostName(DockerUtils.getDockerHost());
            workerNodeEntity.setPort(DockerUtils.getDockerPort());

        } else {
            workerNodeEntity.setType(WorkerNodeType.ACTUAL.value());
            workerNodeEntity.setHostName(NetUtils.getLocalAddress());
            workerNodeEntity.setPort(System.currentTimeMillis() + "-" + RandomUtils.nextInt(0, 100000));
        }

        return workerNodeEntity;
    }

}