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    1   /**
    2    * Licensed to the Apache Software Foundation (ASF) under one or more
    3    * contributor license agreements.  See the NOTICE file distributed with
    4    * this work for additional information regarding copyright ownership.
    5    * The ASF licenses this file to You under the Apache License, Version 2.0
    6    * (the "License"); you may not use this file except in compliance with
    7    * the License.  You may obtain a copy of the License at
    8    *
    9    *     http://www.apache.org/licenses/LICENSE-2.0
   10    *
   11    *  Unless required by applicable law or agreed to in writing, software
   12    *  distributed under the License is distributed on an "AS IS" BASIS,
   13    *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   14    *  See the License for the specific language governing permissions and
   15    *  limitations under the License.
   16    */
   17   package org.apache.openejb.core.security.jaas;
   18   
   19   import org.apache.openejb.spi.CallerPrincipal;
   20   
   21   import java.security.Principal;
   22   
   23   /**
   24    * @version $Rev: 762564 $ $Date: 2009-04-06 16:29:54 -0700 (Mon, 06 Apr 2009) $
   25    */
   26   @CallerPrincipal
   27   public class UserPrincipal implements Principal {
   28   
   29       private final String name;
   30       private transient int hash;
   31   
   32       public UserPrincipal(String name) {
   33           if (name == null) throw new IllegalArgumentException("name cannot be null");
   34           this.name = name;
   35       }
   36   
   37       public String getName() {
   38           return name;
   39       }
   40   
   41       public boolean equals(Object o) {
   42           if (this == o) return true;
   43           if (o == null || getClass() != o.getClass()) return false;
   44   
   45           final UserPrincipal that = (UserPrincipal) o;
   46   
   47           if (!name.equals(that.name)) return false;
   48   
   49           return true;
   50       }
   51   
   52       public int hashCode() {
   53           if (hash == 0) {
   54               hash = name.hashCode();
   55           }
   56           return hash;
   57       }
   58   
   59       public String toString() {
   60           return name;
   61       }
   62   }

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