| /* |
| * 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 |
| * |
| * https://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.taskdefs.condition; |
| |
| import org.apache.tools.ant.BuildException; |
| import org.apache.tools.ant.ProjectComponent; |
| |
| /** |
| * Condition that tests whether a given string evals to false |
| * |
| * @since Ant 1.5 |
| */ |
| public class IsFalse extends ProjectComponent implements Condition { |
| /** |
| * what we eval |
| */ |
| private Boolean value = null; |
| |
| /** |
| * set the value to be tested; let ant eval it to true/false |
| * @param value the value to test |
| */ |
| public void setValue(boolean value) { |
| this.value = value ? Boolean.TRUE : Boolean.FALSE; |
| } |
| |
| /** |
| * @return the inverted value; |
| * @throws BuildException if someone forgot to spec a value |
| */ |
| public boolean eval() throws BuildException { |
| if (value == null) { |
| throw new BuildException("Nothing to test for falsehood"); |
| } |
| return !value; |
| } |
| |
| } |
| |