Github user zentol commented on a diff in the pull request:
https://github.com/apache/flink/pull/1903#discussion_r61064993
--- Diff:
flink-core/src/main/java/org/apache/flink/api/common/operators/GenericDataSourceBase.java
---
@@ -210,10 +210,12 @@ public void accept(Visitor<Operator<?>> visitor) {
protected List<OUT> executeOnCollections(RuntimeContext ctx,
ExecutionConfig executionConfig) throws Exception {
@SuppressWarnings("unchecked")
InputFormat<OUT, InputSplit> inputFormat = (InputFormat<OUT,
InputSplit>) this.formatWrapper.getUserCodeObject();
+ //open the input format
--- End diff --
this comment seems out-dated with the differentiation of configure() and
openInputFormat()
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