Changeset 5711

Timestamp:

2003-10-23T10:44:45+13:00 (21 years ago)

Author:

jmt12

Message:

Added a new method for determining if a certain file describes a descendant of a certain folder as a String. This is useful for determining if a origin file comes from the collection a new collection was based on

File:

• trunk/gli/src/org/greenstone/gatherer/util/Utility.java (modified) (1 diff)

trunk/gli/src/org/greenstone/gatherer/util/Utility.java

@@ -708 +708 @@
     }
 
+   /** Determines if the given file is a descendant of the folder described.
+    * @param pos_parent the possible parent folder as a String
+    * @param child the child File which we are checking
+    * @return true if the child is a descendant of the pos_parent, false otherwise
+    */
+   static public boolean isParentFolderOf(String pos_parent, File child) {
+      while(child != null) {
+     if(pos_parent.equals(child.getAbsolutePath())) {
+        return true;
+     }
+     // Just keep looping checking each of childs parent folders. Not a brilliantly efficient algorithm, but it should still be pretty fast compared to the algorithm for merging elements.
+     child = child.getParentFile();
+      }
+      return false;
+   }
+   
     /** Method to determine if the host system is Microsoft Windows based.
      * @return A <i>boolean</i> which is <i>true</i> if the platform is Windows, <i>false</i> otherwise.