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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *     http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing, software
13   * distributed under the License is distributed on an "AS IS" BASIS,
14   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15   * See the License for the specific language governing permissions and
16   * limitations under the License.
17   */
18  
19  package org.apache.hadoop.hbase.security;
20  
21  import java.lang.annotation.ElementType;
22  import java.lang.annotation.Retention;
23  import java.lang.annotation.RetentionPolicy;
24  import java.lang.annotation.Target;
25  
26  /**
27   * Indicates Kerberos related information to be used for authorizing connections
28   * over a given RPC protocol interface.
29   */
30  @Retention(RetentionPolicy.RUNTIME)
31  @Target(ElementType.TYPE)
32  public @interface KerberosInfo {
33    /** Key for getting server's Kerberos principal name from Configuration */
34    String serverPrincipal();
35    String clientPrincipal() default "";
36  }