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From paul-rogers <...@git.apache.org>
Subject [GitHub] drill pull request #482: DRILL-4604: Generate warning on Web UI if drillbits...
Date Fri, 04 Nov 2016 15:51:02 GMT
Github user paul-rogers commented on a diff in the pull request:

    https://github.com/apache/drill/pull/482#discussion_r86567189
  
    --- Diff: exec/java-exec/src/main/java/org/apache/drill/exec/server/rest/DrillRoot.java
---
    @@ -55,44 +59,89 @@ public Viewable getStats() {
       @GET
       @Path("/stats.json")
       @Produces(MediaType.APPLICATION_JSON)
    -  public List<Stat> getStatsJSON() {
    -    List<Stat> stats = Lists.newLinkedList();
    -    stats.add(new Stat("Number of Drill Bits", work.getContext().getBits().size()));
    -    int number = 0;
    -    for (CoordinationProtos.DrillbitEndpoint bit : work.getContext().getBits()) {
    -      String initialized = bit.isInitialized() ? " initialized" : " not initialized";
    -      stats.add(new Stat("Bit #" + number, bit.getAddress() + initialized));
    -      ++number;
    +  public Stats getStatsJSON() {
    +    final String version = work.getContext().getOptionManager().getOption(ExecConstants.CLUSTER_VERSION).string_val;
    +
    +    final Map<String, Object> props = Maps.newLinkedHashMap();
    +    props.put("Cluster Version", version);
    +    props.put("Number of Drillbits", work.getContext().getBits().size());
    --- End diff --
    
    "Number of Drillbits" looks like a user-visible string. Not clear how these properties
are used. In general, property keys should be internal. Then, if this is for the UI, the UI
template should contain the user-visible label. We generally do not want user-visible strings
to appear in the body of Java code.
    
    Seems this is for the REST API. So the properties appear as JSON properties? Best to use
names that are valid identifiers: "clusterVersion", "drillbitCount", etc.


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