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
019package org.apache.hadoop.yarn.security.client;
020
021import java.lang.annotation.Annotation;
022
023import org.apache.hadoop.classification.InterfaceAudience.Public;
024import org.apache.hadoop.classification.InterfaceStability.Stable;
025import org.apache.hadoop.conf.Configuration;
026import org.apache.hadoop.security.KerberosInfo;
027import org.apache.hadoop.security.SecurityInfo;
028import org.apache.hadoop.security.token.TokenIdentifier;
029import org.apache.hadoop.security.token.TokenInfo;
030import org.apache.hadoop.security.token.TokenSelector;
031import org.apache.hadoop.yarn.api.ApplicationClientProtocolPB;
032import org.apache.hadoop.yarn.conf.YarnConfiguration;
033
034@Public
035@Stable
036public class ClientRMSecurityInfo extends SecurityInfo {
037
038  @Override
039  public KerberosInfo getKerberosInfo(Class<?> protocol, Configuration conf) {
040    if (!protocol
041        .equals(ApplicationClientProtocolPB.class)) {
042      return null;
043    }
044    return new KerberosInfo() {
045
046      @Override
047      public Class<? extends Annotation> annotationType() {
048        return null;
049      }
050
051      @Override
052      public String serverPrincipal() {
053        return YarnConfiguration.RM_PRINCIPAL;
054      }
055
056      @Override
057      public String clientPrincipal() {
058        return null;
059      }
060    };
061  }
062
063  @Override
064  public TokenInfo getTokenInfo(Class<?> protocol, Configuration conf) {
065    if (!protocol
066        .equals(ApplicationClientProtocolPB.class)) {
067      return null;
068    }
069    return new TokenInfo() {
070
071      @Override
072      public Class<? extends Annotation> annotationType() {
073        return null;
074      }
075
076      @Override
077      public Class<? extends TokenSelector<? extends TokenIdentifier>>
078          value() {
079        return RMDelegationTokenSelector.class;
080      }
081    };
082  }
083}