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From Gvain <...@git.apache.org>
Subject [GitHub] incubator-storm pull request: STORM-312 : add storm monitor tools ...
Date Tue, 08 Jul 2014 03:43:01 GMT
Github user Gvain commented on a diff in the pull request:

    https://github.com/apache/incubator-storm/pull/117#discussion_r14635548
  
    --- Diff: storm-core/src/jvm/backtype/storm/utils/Monitor.java ---
    @@ -0,0 +1,211 @@
    +/**
    + * 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 backtype.storm.utils;
    +
    +import backtype.storm.generated.*;
    +
    +import java.util.HashSet;
    +import java.util.List;
    +import java.util.Map;
    +
    +public class Monitor {
    +    private static final String WATCH_TRANSFERRED = "transferred";
    +    private static final String WATCH_EMITTED = "emitted";
    +
    +    private int _interval = 4;
    +    private String _topology;
    +    private String _component;
    +    private String _stream;
    +    private String _watch;
    +
    +    private static class MetricsState {
    --- End diff --
    
    Yes , the MerticState and Poller class are not well fits for Java. I will change them
to better fits for Java. 
    But I don't quite see what concurrency features we really needs here.


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