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, 013 * software distributed under the License is distributed on an 014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 015 * KIND, either express or implied. See the License for the 016 * specific language governing permissions and limitations 017 * under the License. 018 * 019 */ 020package org.apache.directory.server.core.api.interceptor.context; 021 022 023import org.apache.directory.api.ldap.model.name.Dn; 024import org.apache.directory.server.core.api.CoreSession; 025import org.apache.directory.server.i18n.I18n; 026 027 028/** 029 * An EmptySuffix context used for Interceptors. It contains no data, and mask 030 * the Dn in AbstractOperationContext 031 * 032 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> 033 */ 034public abstract class EmptyOperationContext extends AbstractOperationContext 035{ 036 /** 037 * Creates a new instance of EmptyOperationContext. 038 * 039 * @param session The session to use 040 */ 041 public EmptyOperationContext( CoreSession session ) 042 { 043 super( session, Dn.EMPTY_DN ); 044 } 045 046 047 /** 048 * Set the context Dn 049 * 050 * @param dn The Dn to set 051 */ 052 @Override 053 public void setDn( Dn dn ) 054 { 055 if ( dn.equals( Dn.EMPTY_DN ) ) 056 { 057 return; 058 } 059 060 throw new UnsupportedOperationException( I18n.err( I18n.ERR_324 ) ); 061 } 062 063 064 /** 065 * @see Object#toString() 066 */ 067 public String toString() 068 { 069 return "EmptyOperationContext"; 070 } 071}