/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.apache.shardingsphere.elasticjob.cloud.scheduler;

import lombok.AccessLevel;
import lombok.NoArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.apache.curator.framework.CuratorFramework;
import org.apache.shardingsphere.elasticjob.cloud.scheduler.env.BootstrapEnvironment;
import org.apache.shardingsphere.elasticjob.cloud.scheduler.ha.HANode;
import org.apache.shardingsphere.elasticjob.cloud.scheduler.ha.SchedulerElectionCandidate;
import org.apache.shardingsphere.elasticjob.reg.base.CoordinatorRegistryCenter;
import org.apache.shardingsphere.elasticjob.reg.zookeeper.ZookeeperElectionService;
import org.apache.shardingsphere.elasticjob.reg.zookeeper.ZookeeperRegistryCenter;

import java.util.concurrent.CountDownLatch;

/**
 * Mesos bootstrap.
 */
@NoArgsConstructor(access = AccessLevel.PRIVATE)
@Slf4j
public final class Bootstrap {
    
    /**
     * Startup server.
     * 
     * @param args arguments
     * @throws InterruptedException thread interrupted exception
     */
    // CHECKSTYLE:OFF
    public static void main(final String[] args) throws InterruptedException {
        // CHECKSTYLE:ON
        CoordinatorRegistryCenter regCenter = new ZookeeperRegistryCenter(BootstrapEnvironment.getINSTANCE().getZookeeperConfiguration());
        regCenter.init();
        final ZookeeperElectionService electionService = new ZookeeperElectionService(
                BootstrapEnvironment.getINSTANCE().getFrameworkHostPort(), (CuratorFramework) regCenter.getRawClient(), HANode.ELECTION_NODE, new SchedulerElectionCandidate(regCenter));
        electionService.start();
        final CountDownLatch latch = new CountDownLatch(1);
        latch.await();
        Runtime.getRuntime().addShutdownHook(new Thread("shutdown-hook") {
            
            @Override
            public void run() {
                electionService.stop();
                latch.countDown();
            }
        });
    }
}