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/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*/
package org.apache.qpid.server.security.auth.sasl;
import java.security.Principal;
import java.security.acl.Group;
import java.util.Enumeration;
/**
* Immutable representation of a user group. In Qpid, groups do <b>not</b> know
* about their membership, and therefore the {@link #addMember(Principal)}
* methods etc throw {@link UnsupportedOperationException}.
*
*/
public class GroupPrincipal implements Group
{
/** Name of the group */
private final String _groupName;
public GroupPrincipal(final String groupName)
{
_groupName = groupName;
}
public String getName()
{
return _groupName;
}
public boolean addMember(Principal user)
{
throw new UnsupportedOperationException("Not supported");
}
public boolean removeMember(Principal user)
{
throw new UnsupportedOperationException("Not supported");
}
public boolean isMember(Principal member)
{
throw new UnsupportedOperationException("Not supported");
}
public Enumeration<? extends Principal> members()
{
throw new UnsupportedOperationException("Not supported");
}
/**
* @see java.lang.Object#hashCode()
*/
public int hashCode()
{
final int prime = 37;
return prime * _groupName.hashCode();
}
/**
* @see java.lang.Object#equals(java.lang.Object)
*/
public boolean equals(Object obj)
{
if (this == obj)
{
return true;
}
else
{
if (obj instanceof GroupPrincipal)
{
GroupPrincipal other = (GroupPrincipal) obj;
return _groupName.equals(other._groupName);
}
else
{
return false;
}
}
}
}
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