Github user rmetzger commented on a diff in the pull request:
https://github.com/apache/flink/pull/334#discussion_r23503540
--- Diff:
flink-addons/flink-streaming/flink-streaming-core/src/main/java/org/apache/flink/streaming/api/StreamGraph.java
---
@@ -536,4 +549,79 @@ public long getIterationTimeout(String vertexName) {
return iterationTimeouts.get(vertexName);
}
+ public String getOperatorName(String vertexName) {
+ return operatorNames.get(vertexName);
+ }
+
+ @Override
+ public String getStreamingPlanAsJSON() {
+
+ try {
+ JSONObject json = new JSONObject();
+ JSONArray nodes = new JSONArray();
+
+ json.put("nodes", nodes);
+
+ for (String id : operatorNames.keySet()) {
+ JSONObject node = new JSONObject();
+ nodes.put(node);
+
+ node.put("id", Integer.valueOf(id));
+ node.put("type", getOperatorName(id));
+
+ if (sources.contains(id)) {
+ node.put("pact", "Data Source");
+ } else {
+ node.put("pact", "Data Stream");
+ }
+
+ node.put("contents", getOperatorName(id) + " at
"
+ +
getInvokable(id).getUserFunction().getClass().getSimpleName());
+ node.put("parallelism", getParallelism(id));
+
+ int numIn = getInEdges(id).size();
+ if (numIn > 0) {
+
+ JSONArray inputs = new JSONArray();
+ node.put("predecessors", inputs);
+
+ for (int i = 0; i < numIn; i++) {
+
+ String inID =
getInEdges(id).get(i);
+
+ JSONObject input = new
JSONObject();
+ inputs.put(input);
+
+ input.put("id",
Integer.valueOf(inID));
+ input.put("ship_strategy",
getOutPartitioner(inID, id).getStrategy());
+ if (i == 0) {
+ input.put("side",
"first");
+ } else if (i == 1) {
+ input.put("side",
"second");
+ }
+ }
+ }
+
+ }
+ return json.toString();
+ } catch (Exception e) {
--- End diff --
maybe we should at least LOG.debug() the exception?
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