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https://issues.apache.org/jira/browse/STORM-1268?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15196954#comment-15196954
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ASF GitHub Bot commented on STORM-1268:
---------------------------------------

Github user abhishekagarwal87 commented on a diff in the pull request:

    https://github.com/apache/storm/pull/1218#discussion_r56292345
  
    --- Diff: 
storm-core/src/jvm/org/apache/storm/daemon/metrics/BuiltinMetricsUtil.java ---
    @@ -0,0 +1,77 @@
    +/**
    + * 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.storm.daemon.metrics;
    +
    +import java.util.HashMap;
    +import java.util.Map;
    +import org.apache.storm.Config;
    +import org.apache.storm.metric.api.IMetric;
    +import org.apache.storm.metric.api.IStatefulObject;
    +import org.apache.storm.metric.api.StateMetric;
    +import org.apache.storm.stats.BoltExecutorStats;
    +import org.apache.storm.stats.SpoutExecutorStats;
    +import org.apache.storm.stats.StatsUtil;
    +import org.apache.storm.task.TopologyContext;
    +
    +public class BuiltinMetricsUtil {
    +    public static BuiltinMetrics mkData(String type, Object stats) {
    +        if (StatsUtil.SPOUT.equals(type)) {
    +            return new BuiltinSpoutMetrics((SpoutExecutorStats) stats);
    +        }
    +        return new BuiltinBoltMetrics((BoltExecutorStats) stats);
    --- End diff --
    
    just to be safer, can you also check that type is equal to Bolt in the else 
block


> port backtype.storm.daemon.builtin-metrics to java
> --------------------------------------------------
>
>                 Key: STORM-1268
>                 URL: https://issues.apache.org/jira/browse/STORM-1268
>             Project: Apache Storm
>          Issue Type: New Feature
>          Components: storm-core
>            Reporter: Robert Joseph Evans
>            Assignee: Cody
>              Labels: java-migration, jstorm-merger
>
> Built-in metrics



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