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https://issues.apache.org/jira/browse/FLINK-2720?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15952909#comment-15952909
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ASF GitHub Bot commented on FLINK-2720:
---------------------------------------
Github user mjsax commented on a diff in the pull request:
https://github.com/apache/flink/pull/3615#discussion_r109326550
--- Diff:
flink-contrib/flink-storm/src/main/java/org/apache/flink/storm/metric/CounterMetricAdapter.java
---
@@ -0,0 +1,94 @@
+/*
+ * 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.storm.metric;
+
+import org.apache.flink.metrics.Counter;
+import org.apache.flink.metrics.Metric;
+
+import backtype.storm.metric.api.CountMetric;
+import backtype.storm.metric.api.IMetric;
+
+/**
+ * An adapter to compose the counter metric between flink counter and
storm counter metric.
+ *
+ * @since Mar 5, 2017
+ *
+ */
+public class CounterMetricAdapter extends CountMetric implements IMetric,
Counter, IMetricAdapter<CountMetric> {
--- End diff --
Why does this class inherit from `Counter`? I seems to be sufficient that
it as a member `Counter`.
> Add Storm-CountMetric in flink-stormcompatibility
> -------------------------------------------------
>
> Key: FLINK-2720
> URL: https://issues.apache.org/jira/browse/FLINK-2720
> Project: Flink
> Issue Type: New Feature
> Components: Storm Compatibility
> Reporter: Huang Wei
> Assignee: Matthias J. Sax
> Fix For: 1.0.0
>
> Original Estimate: 168h
> Remaining Estimate: 168h
>
> Add the CountMetric for the first step of storm metrics:
> 1.Do a wrapper FlinkCountMetric for CountMetric
> 2.push the RuntimeContext in FlinkTopologyContext to use `addAccumulator`
> method for registering the metric.
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