/*
 * 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.flink.runtime.dispatcher.runner;

import org.apache.flink.runtime.dispatcher.DispatcherFactory;
import org.apache.flink.runtime.dispatcher.PartialDispatcherServices;
import org.apache.flink.runtime.jobmanager.JobPersistenceComponentFactory;
import org.apache.flink.runtime.leaderelection.LeaderElection;
import org.apache.flink.runtime.rpc.FatalErrorHandler;
import org.apache.flink.runtime.rpc.RpcService;

import java.util.concurrent.Executor;

/**
 * {@link DispatcherRunnerFactory} implementation which creates {@link DefaultDispatcherRunner}
 * instances.
 */
public class DefaultDispatcherRunnerFactory implements DispatcherRunnerFactory {
    private final DispatcherLeaderProcessFactoryFactory dispatcherLeaderProcessFactoryFactory;

    public DefaultDispatcherRunnerFactory(
            DispatcherLeaderProcessFactoryFactory dispatcherLeaderProcessFactoryFactory) {
        this.dispatcherLeaderProcessFactoryFactory = dispatcherLeaderProcessFactoryFactory;
    }

    @Override
    public DispatcherRunner createDispatcherRunner(
            LeaderElection leaderElection,
            FatalErrorHandler fatalErrorHandler,
            JobPersistenceComponentFactory jobPersistenceComponentFactory,
            Executor ioExecutor,
            RpcService rpcService,
            PartialDispatcherServices partialDispatcherServices)
            throws Exception {

        final DispatcherLeaderProcessFactory dispatcherLeaderProcessFactory =
                dispatcherLeaderProcessFactoryFactory.createFactory(
                        jobPersistenceComponentFactory,
                        ioExecutor,
                        rpcService,
                        partialDispatcherServices,
                        fatalErrorHandler);

        return DefaultDispatcherRunner.create(
                leaderElection, fatalErrorHandler, dispatcherLeaderProcessFactory);
    }

    public static DefaultDispatcherRunnerFactory createSessionRunner(
            DispatcherFactory dispatcherFactory) {
        return new DefaultDispatcherRunnerFactory(
                SessionDispatcherLeaderProcessFactoryFactory.create(dispatcherFactory));
    }
}
