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From rmetzger <...@git.apache.org>
Subject [GitHub] flink pull request #2350: [FLINK-4329] Fix Streaming File Source Timestamps/...
Date Thu, 18 Aug 2016 12:28:22 GMT
Github user rmetzger commented on a diff in the pull request:

    --- Diff: flink-streaming-java/src/main/java/org/apache/flink/streaming/api/operators/StreamSource.java
    @@ -146,16 +146,24 @@ void checkAsyncException() {
     		private final Output<StreamRecord<T>> output;
     		private final StreamRecord<T> reuse;
    -		public NonTimestampContext(StreamSource<?, ?> owner, Object lockingObject, Output<StreamRecord<T>>
output) {
    -			this.owner = owner;
    +		public NonTimestampContext(AbstractStreamOperator<T> owner, Object lockingObject,
Output<StreamRecord<T>> output) {
     			this.lockingObject = lockingObject;
     			this.output = output;
     			this.reuse = new StreamRecord<T>(null);
    +			// if it is a source, then we cast and cache it
    +			// here so that we do not have to do it in every collect(),
    +			// collectWithTimestamp() and emitWatermark()
    +			this.owner = (owner instanceof StreamSource) ?
    +				(StreamSource) owner : null;
    --- End diff --
    This looks a bit hacky. How about you add an interface `AsyncException` or so, that all
classes the `NonTimestampContext` are using can use.

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