| /* |
| * 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.tools.ant.types.resources.selectors; |
| |
| import org.apache.tools.ant.types.Resource; |
| |
| /** |
| * Not ResourceSelector. |
| * @since Ant 1.7 |
| */ |
| public class Not implements ResourceSelector { |
| |
| private ResourceSelector sel; |
| |
| /** |
| * Default constructor. |
| */ |
| public Not() { |
| } |
| |
| /** |
| * Convenience constructor. |
| * @param s the ResourceSelector to negate. |
| */ |
| public Not(ResourceSelector s) { |
| add(s); |
| } |
| |
| /** |
| * Set the ResourceSelector. |
| * @param s the ResourceSelector to negate. |
| * @throws IllegalStateException if already set. |
| */ |
| public void add(ResourceSelector s) { |
| if (sel != null) { |
| throw new IllegalStateException( |
| "The Not ResourceSelector accepts a single nested ResourceSelector"); |
| } |
| sel = s; |
| } |
| |
| /** |
| * Return true if this Resource is selected. |
| * @param r the Resource to check. |
| * @return whether the Resource was selected. |
| */ |
| public boolean isSelected(Resource r) { |
| return !(sel.isSelected(r)); |
| } |
| |
| } |