/**
 * 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
 * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p>
 * 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.hadoop.ozone.container.common;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.io.retry.RetryPolicies;
import org.apache.hadoop.ipc.ProtobufRpcEngine;
import org.apache.hadoop.ipc.RPC;
import org.apache.hadoop.net.NetUtils;
import org.apache.hadoop.ozone.container.common.statemachine
    .EndpointStateMachine;
import org.apache.hadoop.ozone.protocolPB
    .StorageContainerDatanodeProtocolClientSideTranslatorPB;
import org.apache.hadoop.ozone.protocolPB.StorageContainerDatanodeProtocolPB;
import org.apache.hadoop.security.UserGroupInformation;

import java.net.InetSocketAddress;

/**
 * Helper utility to test containers.
 */
public final class ContainerTestUtils {

  private ContainerTestUtils() {
  }

  /**
   * Creates an Endpoint class for testing purpose.
   *
   * @param conf - Conf
   * @param address - InetAddres
   * @param rpcTimeout - rpcTimeOut
   * @return EndPoint
   * @throws Exception
   */
  public static EndpointStateMachine createEndpoint(Configuration conf,
      InetSocketAddress address, int rpcTimeout) throws Exception {
    RPC.setProtocolEngine(conf, StorageContainerDatanodeProtocolPB.class,
        ProtobufRpcEngine.class);
    long version =
        RPC.getProtocolVersion(StorageContainerDatanodeProtocolPB.class);

    StorageContainerDatanodeProtocolPB rpcProxy = RPC.getProtocolProxy(
        StorageContainerDatanodeProtocolPB.class, version,
        address, UserGroupInformation.getCurrentUser(), conf,
        NetUtils.getDefaultSocketFactory(conf), rpcTimeout,
        RetryPolicies.TRY_ONCE_THEN_FAIL).getProxy();

    StorageContainerDatanodeProtocolClientSideTranslatorPB rpcClient =
        new StorageContainerDatanodeProtocolClientSideTranslatorPB(rpcProxy);
    return new EndpointStateMachine(address, rpcClient, conf);
  }
}