sanha commented on a change in pull request #193: [NEMO-338] SkewSamplingPass
URL: https://github.com/apache/incubator-nemo/pull/193#discussion_r257171773
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File path: common/src/main/java/org/apache/nemo/common/Util.java
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@@ -51,4 +59,90 @@ public static boolean checkEqualityOfIntPredicates(final
IntPredicate firstPredi
return true;
}
+ /**
+ * @param edgeToClone to copy execution properties from.
+ * @param newSrc of the new edge.
+ * @param newDst of the new edge.
+ * @return the new edge.
+ */
+ public static IREdge cloneEdge(final IREdge edgeToClone,
+ final IRVertex newSrc,
+ final IRVertex newDst) {
+ return cloneEdge(
+ edgeToClone.getPropertyValue(CommunicationPatternProperty.class).get(),
edgeToClone, newSrc, newDst);
+ }
+
+ /**
+ * Creates a new edge with several execution properties same as the given
edge.
+ * The copied execution properties include those minimally required for
execution, such as encoder/decoders.
+ *
+ * @param commPattern to use.
+ * @param edgeToClone to copy execution properties from.
+ * @param newSrc of the new edge.
+ * @param newDst of the new edge.
+ * @return the new edge.
+ */
+ public static IREdge cloneEdge(final CommunicationPatternProperty.Value
commPattern,
+ final IREdge edgeToClone,
+ final IRVertex newSrc,
+ final IRVertex newDst) {
+ final IREdge clone = new IREdge(commPattern, newSrc, newDst);
+
+ if (edgeToClone.getPropertySnapshot().containsKey(EncoderProperty.class)) {
+
clone.setProperty(edgeToClone.getPropertySnapshot().get(EncoderProperty.class));
+ } else {
+
clone.setProperty(EncoderProperty.of(edgeToClone.getPropertyValue(EncoderProperty.class).get()));
+ }
+
+ if (edgeToClone.getPropertySnapshot().containsKey(DecoderProperty.class)) {
+
clone.setProperty(edgeToClone.getPropertySnapshot().get(DecoderProperty.class));
+ } else {
+
clone.setProperty(DecoderProperty.of(edgeToClone.getPropertyValue(DecoderProperty.class).get()));
+ }
+
+
edgeToClone.getPropertyValue(AdditionalOutputTagProperty.class).ifPresent(tag
-> {
+ clone.setProperty(AdditionalOutputTagProperty.of(tag));
+ });
+
+ edgeToClone.getPropertyValue(PartitionerProperty.class).ifPresent(p -> {
+ if (p.right() == PartitionerProperty.NUM_EQUAL_TO_DST_PARALLELISM) {
Review comment:
Is this code needed? The result will be the same without this if clause.
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