/**
 * 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.om;

import org.apache.hadoop.ozone.client.protocol.ClientProtocol;
import org.apache.hadoop.ozone.client.rpc.RpcClient;
import org.apache.hadoop.ozone.om.ha.HadoopRpcOMFailoverProxyProvider;
import org.apache.hadoop.ozone.om.protocolPB.Hadoop3OmTransport;
import org.apache.hadoop.ozone.om.protocolPB.OzoneManagerProtocolClientSideTranslatorPB;

/**
 * Test utility to get the FailoverProxyProvider with cast.
 */
public final class OmFailoverProxyUtil {

  private OmFailoverProxyUtil() {
  }

  /**
   * Get FailoverProxyProvider from RpcClient / ClientProtocol.
   */
  public static HadoopRpcOMFailoverProxyProvider getFailoverProxyProvider(
      ClientProtocol clientProtocol) {

    OzoneManagerProtocolClientSideTranslatorPB ozoneManagerClient =
        (OzoneManagerProtocolClientSideTranslatorPB)
            ((RpcClient) clientProtocol).getOzoneManagerClient();
    
    Hadoop3OmTransport transport =
        (Hadoop3OmTransport) ozoneManagerClient.getTransport();
    return transport.getOmFailoverProxyProvider();
  }
}
