diff options
Diffstat (limited to 'framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/taskdefs/condition/ResourceExists.java')
-rw-r--r-- | framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/taskdefs/condition/ResourceExists.java | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/taskdefs/condition/ResourceExists.java b/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/taskdefs/condition/ResourceExists.java new file mode 100644 index 00000000..feda65b2 --- /dev/null +++ b/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/taskdefs/condition/ResourceExists.java @@ -0,0 +1,56 @@ +/* + * 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.taskdefs.condition; + +import org.apache.tools.ant.BuildException; +import org.apache.tools.ant.ProjectComponent; +import org.apache.tools.ant.types.Resource; + +/** + * Condition that checks whether a given resource exists. + * + * @since Ant 1.8.0 + */ +public class ResourceExists extends ProjectComponent implements Condition { + private Resource resource; + + /** + * The resource to test. + */ + public void add(Resource r) { + if (resource != null) { + throw new BuildException("only one resource can be tested"); + } + resource = r; + } + + /** + * Argument validation. + */ + protected void validate() throws BuildException { + if (resource == null) { + throw new BuildException("resource is required"); + } + } + + public boolean eval() throws BuildException { + validate(); + return resource.isExists(); + } +} |