content: /*
   *  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 java.io.File;
  
  import org.apache.tools.ant.BuildException;
  import org.apache.tools.ant.types.selectors.AbstractSelectorContainer;
  import org.apache.tools.ant.types.selectors.FileSelector;
  import org.apache.tools.ant.util.FileUtils;
  
  /**
   * This is a condition that checks to see if a file passes an embedded selector.
   */
  public class IsFileSelected extends AbstractSelectorContainer implements Condition {
  
      private static final FileUtils FILE_UTILS = FileUtils.getFileUtils();
  
      private File file;
      private File baseDir;
  
      /**
       * The file to check.
       * @param file the file to check if if passes the embedded selector.
       */
      public void setFile(File file) {
          this.file = file;
      }
  
      /**
       * The base directory to use.
       * @param baseDir the base directory to use, if null use the project's
       *                basedir.
       */
      public void setBaseDir(File baseDir) {
          this.baseDir = baseDir;
      }
  
      /**
       * validate the parameters.
       */
      public void validate() {
          if (selectorCount() != 1) {
              throw new BuildException("Only one selector allowed");
          }
          super.validate();
      }
  
      /**
       * Evaluate the selector with the file.
       * @return true if the file is selected by the embedded selector.
       */
      public boolean eval() {
          if (file == null) {
              throw new BuildException("file attribute not set");
          }
          validate();
          File myBaseDir = baseDir;
          if (myBaseDir == null) {
              myBaseDir = getProject().getBaseDir();
          }
  
          FileSelector f = getSelectors(getProject())[0];
          return f.isSelected(
              myBaseDir, FILE_UTILS.removeLeadingPath(myBaseDir, file), file);
      }
  }
  