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;
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.ContainerManagementProtocolPB;
032
033@Public
034@Stable
035public class ContainerManagerSecurityInfo extends SecurityInfo {
036
037  @Override
038  public KerberosInfo getKerberosInfo(Class<?> protocol, Configuration conf) {
039    return null;
040  }
041
042  @Override
043  public TokenInfo getTokenInfo(Class<?> protocol, Configuration conf) {
044    if (!protocol
045        .equals(ContainerManagementProtocolPB.class)) {
046      return null;
047    }
048    return new TokenInfo() {
049
050      @Override
051      public Class<? extends Annotation> annotationType() {
052        return null;
053      }
054
055      @Override
056      public Class<? extends TokenSelector<? extends TokenIdentifier>>
057          value() {
058        return NMTokenSelector.class;
059      }
060    };
061
062  }
063
064}