| /* |
| * Copyright 2003-2007 the original author or authors. |
| * |
| * Licensed 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.codehaus.groovy.control; |
| |
| import java.util.HashSet; |
| import java.util.Iterator; |
| import java.util.Set; |
| |
| /** |
| * An agent that can be used to defer cleanup operations to |
| * a later time. Users much implement the HasCleanup interface. |
| * |
| * @author <a href="mailto:cpoirier@dreaming.org">Chris Poirier</a> |
| * |
| * @version $Id$ |
| */ |
| |
| public class Janitor implements HasCleanup |
| { |
| private final Set pending = new HashSet(); // All objects pending cleanup |
| |
| public void register( HasCleanup object ) |
| { |
| pending.add( object ); |
| } |
| |
| public void cleanup() |
| { |
| Iterator iterator = pending.iterator(); |
| while( iterator.hasNext() ) |
| { |
| HasCleanup object = (HasCleanup)iterator.next(); |
| |
| try { object.cleanup(); } catch( Exception e ) { |
| // Ignore |
| } |
| } |
| |
| pending.clear(); |
| } |
| } |
| |
| |
| |
| |