java/src/main/com/google/apphosting/utils/config/GenerationDirectory.java

   1 // Copyright 2009 Google Inc. All Rights Reserved.
   2
   3 package com.google.apphosting.utils.config;
   4
   5 import java.io.File;
   6
   7 /**
   8  * Utility class to establish the location of generated files, given an
   9  * application base directory.
  10  *
  11  *
  12  */
  13 public class GenerationDirectory {
  14
  15   /**
  16    * The directory in which files are generated. The directory
  17    * is relative to the WEB-INF folder of the current application.
  18    */
  19   public static final String GENERATED_DIR_PROPERTY = "appengine.generated.dir";
  20
  21   /** The default value for {@code GENERATED_DIR_PROPERTY}. */
  22   private static final String GENERATED_DIR_DEFAULT = "appengine-generated";
  23
  24   /**
  25    * Returns the generation directory for the current application.
  26    *
  27    * @param dir location of the application.  The default generation directory
  28    *    will be inside this, if not overridden via the system property
  29    *    {#link GENERATED_DIR_PROPERTY}.
  30    * @return pathname to generated file directory.  The directory may
  31    *    or may not have been created.
  32    */
  33   public static File getGenerationDirectory(File dir) {
  34     return new File(System.getProperty(GENERATED_DIR_PROPERTY,
  35             new File(new File(dir, "WEB-INF"), GENERATED_DIR_DEFAULT).getPath()));
  36   }
  37
  38   private GenerationDirectory() {
  39   }
  40
  41 }