001    /**
002     * Licensed to the Apache Software Foundation (ASF) under one
003     * or more contributor license agreements.  See the NOTICE file
004     * distributed with this work for additional information
005     * regarding copyright ownership.  The ASF licenses this file
006     * to you under the Apache License, Version 2.0 (the
007     * "License"); you may not use this file except in compliance
008     * with the License.  You may obtain a copy of the License at
009     *
010     *     http://www.apache.org/licenses/LICENSE-2.0
011     *
012     * Unless required by applicable law or agreed to in writing, software
013     * distributed under the License is distributed on an "AS IS" BASIS,
014     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015     * See the License for the specific language governing permissions and
016     * limitations under the License.
017     */
018    package org.apache.hadoop.ha.protocolPB;
019    
020    import org.apache.hadoop.classification.InterfaceAudience;
021    import org.apache.hadoop.classification.InterfaceStability;
022    import org.apache.hadoop.fs.CommonConfigurationKeys;
023    import org.apache.hadoop.ha.proto.HAServiceProtocolProtos.HAServiceProtocolService;
024    import org.apache.hadoop.ipc.ProtocolInfo;
025    import org.apache.hadoop.ipc.VersionedProtocol;
026    import org.apache.hadoop.security.KerberosInfo;
027    
028    @KerberosInfo(
029        serverPrincipal=CommonConfigurationKeys.HADOOP_SECURITY_SERVICE_USER_NAME_KEY)
030    @ProtocolInfo(protocolName = "org.apache.hadoop.ha.HAServiceProtocol", 
031        protocolVersion = 1)
032    @InterfaceAudience.Public
033    @InterfaceStability.Evolving
034    public interface HAServiceProtocolPB extends
035        HAServiceProtocolService.BlockingInterface, VersionedProtocol {
036      /**
037       * If any methods need annotation, it can be added here
038       */
039    }