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.types.resources.selectors;
  
  import org.apache.tools.ant.BuildException;
  import org.apache.tools.ant.types.EnumeratedAttribute;
  import org.apache.tools.ant.types.Resource;
  
  /**
   * Type file/dir ResourceSelector.
   * @since Ant 1.7
   */
  public class Type implements ResourceSelector {
  
      private static final String FILE_ATTR = "file";
      private static final String DIR_ATTR = "dir";
      private static final String ANY_ATTR = "any";
  
      /** Static file type selector. */
      public static final Type FILE = new Type(new FileDir(FILE_ATTR));
  
      /** Static dir type selector. */
      public static final Type DIR = new Type(new FileDir(DIR_ATTR));
  
      /** Static any type selector. Since Ant 1.8. */
      public static final Type ANY = new Type(new FileDir(ANY_ATTR));
  
      /**
       * Implements the type attribute.
       */
      public static class FileDir extends EnumeratedAttribute {
          private static final String[] VALUES = new String[] {FILE_ATTR, DIR_ATTR, ANY_ATTR};
  
          /**
           * Default constructor.
           */
          public FileDir() {
          }
  
          /**
           * Convenience constructor.
           * @param value the String EnumeratedAttribute value.
           */
          public FileDir(final String value) {
              setValue(value);
          }
  
          /**
           * Return the possible values.
           * @return a String array.
           */
          @Override
          public String[] getValues() {
              return VALUES;
          }
      }
  
      private FileDir type = null;
  
      /**
       * Default constructor.
       */
      public Type() {
      }
  
      /**
       * Convenience constructor.
       * @param fd the FileDir type.
       */
      public Type(final FileDir fd) {
          setType(fd);
      }
  
      /**
       * Set type; file|dir.
       * @param fd a FileDir object.
       */
      public void setType(final FileDir fd) {
          type = fd;
      }
  
      /**
       * Return true if this Resource is selected.
       * @param r the Resource to check.
       * @return whether the Resource was selected.
       */
      public boolean isSelected(final Resource r) {
          if (type == null) {
              throw new BuildException("The type attribute is required.");
          }
          final int i = type.getIndex();
          return i == 2 || (r.isDirectory() ? i == 1 : i == 0);
      }
  
  }
  