[Pig Wiki] Update of "PigStorageWithInputPath" by daijy

[Apache Wiki <wi...@apache.org>]

Dear Wiki user,

You have subscribed to a wiki page or wiki category on "Pig Wiki" for change notification.

The "PigStorageWithInputPath" page has been changed by daijy:
http://wiki.apache.org/pig/PigStorageWithInputPath?action=diff&rev1=1&rev2=2

+ This page has been moved to [[https://cwiki.apache.org/confluence/display/PIG/Pig+Tips|Confluence]]
- = Use Case =
- When you want to load a globbing, but want to know which file you are working on during the loading. Eg, 
  
- {{{
- A = load '*.txt' using PigStorageWithInputPath();
- }}}
- 
- You want to know which exact file you are loading in your getNext().
- 
- = Solution =
- Here is a code snip to get the file name:
- 
- {{{
- public class PigStorageWithInputPath extends PigStorage {
-     Path path = null;
- 
-     @Override
-     public void prepareToRead(RecordReader reader, PigSplit split) {
-         super.prepareToRead(reader, split);
-         path = ((FileSplit)split.getWrappedSplit()).getPath();
-     }
- 
-     @Override
-     public Tuple getNext() throws IOException {
-         Tuple myTuple = super.getNext();
-         if (myTuple != null)
-             myTuple.append(path.toString());
-         return myTuple;
-     }
- }
- 
- }}}
-