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https://issues.apache.org/jira/browse/FLINK-9850?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16581013#comment-16581013
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ASF GitHub Bot commented on FLINK-9850:
---------------------------------------
yanghua commented on a change in pull request #6367: [FLINK-9850] Add a string
to the print method to identify output for DataStream
URL: https://github.com/apache/flink/pull/6367#discussion_r210253268
##########
File path:
flink-streaming-java/src/test/java/org/apache/flink/streaming/util/MockRuntimeContext.java
##########
@@ -0,0 +1,95 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.flink.streaming.util;
+
+import org.apache.flink.api.common.ExecutionConfig;
+import org.apache.flink.metrics.MetricGroup;
+import org.apache.flink.metrics.groups.UnregisteredMetricsGroup;
+import org.apache.flink.runtime.jobgraph.OperatorID;
+import org.apache.flink.runtime.memory.MemoryManager;
+import org.apache.flink.runtime.operators.testutils.MockEnvironmentBuilder;
+import org.apache.flink.streaming.api.operators.AbstractStreamOperator;
+import org.apache.flink.streaming.api.operators.StreamingRuntimeContext;
+
+import java.util.Collections;
+
+/**
+ * Simple test runtime context for stream operators.
+ */
+public class MockRuntimeContext extends StreamingRuntimeContext {
Review comment:
This is based on your previous suggestion. Before your PR was merged, I
forgot to delete it. Sorry, it will be deleted.
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> Add a string to the print method to identify output for DataStream
> ------------------------------------------------------------------
>
> Key: FLINK-9850
> URL: https://issues.apache.org/jira/browse/FLINK-9850
> Project: Flink
> Issue Type: New Feature
> Components: DataStream API
> Reporter: Hequn Cheng
> Assignee: vinoyang
> Priority: Major
> Labels: pull-request-available
>
> The output of the print method of {[DataSet}} allows the user to supply a
> String to identify the output(see
> [FLINK-1486|https://issues.apache.org/jira/browse/FLINK-1486]). But
> {[DataStream}} doesn't support now. It is valuable to add this feature for
> {{DataStream}}
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