sanha commented on a change in pull request #1: [NEMO-26] Implement
SourceLocationAwareSchedulingPolicy
URL: https://github.com/apache/incubator-nemo/pull/1#discussion_r172720282
##########
File path:
compiler/frontend/beam/src/main/java/edu/snu/nemo/compiler/frontend/beam/source/BeamBoundedSourceVertex.java
##########
@@ -94,5 +98,18 @@ public String propertiesToJSON() {
}
return elements;
}
+
+ @Override
+ public List<String> getLocations() throws Exception {
+ if (boundedSource instanceof
HadoopInputFormatIO.HadoopInputFormatBoundedSource) {
+ final Field inputSplitField =
boundedSource.getClass().getDeclaredField("inputSplit");
+ inputSplitField.setAccessible(true);
+ final InputSplit inputSplit = ((HadoopInputFormatIO.SerializableSplit)
inputSplitField
+ .get(boundedSource)).getSplit();
+ return Arrays.asList(inputSplit.getLocations());
+ } else {
+ throw new UnsupportedOperationException();
Review comment:
`return Collections.emptyList();` ?
(Because the default method return it.)
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