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Posted to commits@mahout.apache.org by sr...@apache.org on 2010/03/30 19:03:56 UTC
svn commit: r929193 -
/lucene/mahout/trunk/core/src/main/java/org/apache/mahout/cf/taste/hadoop/item/RecommenderMapper.java
Author: srowen
Date: Tue Mar 30 17:03:56 2010
New Revision: 929193
URL: http://svn.apache.org/viewvc?rev=929193&view=rev
Log:
MAHOUT-353: first step, avoid an NPE but may still be some issue here
Modified:
lucene/mahout/trunk/core/src/main/java/org/apache/mahout/cf/taste/hadoop/item/RecommenderMapper.java
Modified: lucene/mahout/trunk/core/src/main/java/org/apache/mahout/cf/taste/hadoop/item/RecommenderMapper.java
URL: http://svn.apache.org/viewvc/lucene/mahout/trunk/core/src/main/java/org/apache/mahout/cf/taste/hadoop/item/RecommenderMapper.java?rev=929193&r1=929192&r2=929193&view=diff
==============================================================================
--- lucene/mahout/trunk/core/src/main/java/org/apache/mahout/cf/taste/hadoop/item/RecommenderMapper.java (original)
+++ lucene/mahout/trunk/core/src/main/java/org/apache/mahout/cf/taste/hadoop/item/RecommenderMapper.java Tue Mar 30 17:03:56 2010
@@ -164,12 +164,16 @@ public final class RecommenderMapper ext
@Override
public Vector get(IntWritable key) throws TasteException {
- Vector value;
+ VectorWritable writable;
try {
- value = map.get(key, columnVector).get();
+ writable = map.get(key, columnVector);
} catch (IOException ioe) {
throw new TasteException(ioe);
}
+ if (writable == null) {
+ return null;
+ }
+ Vector value = writable.get();
if (value == null) {
return null;
}