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 */ 020 021 package org.apache.directory.shared.ldap.util; 022 023 024 import java.util.Arrays; 025 import java.util.Collections; 026 import java.util.LinkedList; 027 import java.util.List; 028 029 import org.apache.directory.shared.i18n.I18n; 030 031 032 public abstract class AbstractSimpleComponentsMonitor implements ComponentsMonitor 033 { 034 private List<String> components; 035 036 037 public AbstractSimpleComponentsMonitor(String[] components) 038 { 039 // register components 040 this.components = new LinkedList<String>( Arrays.asList( components ) ); 041 } 042 043 044 public ComponentsMonitor useComponent( String component ) throws IllegalArgumentException 045 { 046 if ( !components.remove( component ) ) 047 { 048 throw new IllegalArgumentException( I18n.err( I18n.ERR_04336, component ) ); 049 } 050 051 return this; 052 } 053 054 055 public boolean allComponentsUsed() 056 { 057 return components.isEmpty(); 058 } 059 060 061 public List<String> getRemainingComponents() 062 { 063 return Collections.unmodifiableList( components ); 064 } 065 066 067 public abstract boolean finalStateValid(); 068 }