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From arina-ielchiieva <...@git.apache.org>
Subject [GitHub] drill pull request #482: DRILL-4604: Generate warning on Web UI if drillbits...
Date Thu, 24 Nov 2016 17:22:06 GMT
Github user arina-ielchiieva commented on a diff in the pull request:

    https://github.com/apache/drill/pull/482#discussion_r89306479
  
    --- 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());
    +    CoordinationProtos.DrillbitEndpoint currentEndpoint = work.getContext().getEndpoint();
    +    final String address = currentEndpoint.getAddress();
    +    props.put("Data Port Address", address + ":" + currentEndpoint.getDataPort());
    +    props.put("User Port Address", address + ":" + currentEndpoint.getUserPort());
    +    props.put("Control Port Address", address + ":" + currentEndpoint.getControlPort());
    +    props.put("Maximum Direct Memory", DrillConfig.getMaxDirectMemory());
    +
    +    return new Stats(props, collectDrillbits(version));
    +  }
    +
    +  private Collection<DrillbitInfo> collectDrillbits(String version) {
    +    Set<DrillbitInfo> drillbits = Sets.newTreeSet();
    +    for (CoordinationProtos.DrillbitEndpoint endpoint : work.getContext().getBits())
{
    +      boolean versionMatch = version.equals(endpoint.getVersion());
    +      DrillbitInfo drillbit = new DrillbitInfo(endpoint.getAddress(), endpoint.isInitialized(),
endpoint.getVersion(), versionMatch);
    +      drillbits.add(drillbit);
         }
    -    stats.add(new Stat("Data Port Address", work.getContext().getEndpoint().getAddress()
+
    -      ":" + work.getContext().getEndpoint().getDataPort()));
    -    stats.add(new Stat("User Port Address", work.getContext().getEndpoint().getAddress()
+
    -      ":" + work.getContext().getEndpoint().getUserPort()));
    -    stats.add(new Stat("Control Port Address", work.getContext().getEndpoint().getAddress()
+
    -      ":" + work.getContext().getEndpoint().getControlPort()));
    -    stats.add(new Stat("Maximum Direct Memory", DrillConfig.getMaxDirectMemory()));
    -
    -    return stats;
    +    return drillbits;
       }
     
       @XmlRootElement
    -  public class Stat {
    -    private String name;
    -    private Object value;
    +  public static class Stats {
    +    private final Map<String, Object> props;
    +    private final Collection<DrillbitInfo> drillbits;
     
         @JsonCreator
    -    public Stat(String name, Object value) {
    -      this.name = name;
    -      this.value = value;
    +    public Stats(Map<String, Object> props, Collection<DrillbitInfo> drillbits)
{
    +      this.props = props;
    +      this.drillbits = drillbits;
    +    }
    +
    +    public Map<String, Object> getProps() {
    +      return props;
         }
     
    -    public String getName() {
    -      return name;
    +    public Collection<DrillbitInfo> getDrillbits() {
    +      return drillbits;
         }
    +  }
    +
    +  public static class DrillbitInfo implements Comparable<DrillbitInfo> {
    +    private final String address;
    +    private final boolean initialized;
    +    private final String version;
    +    private final boolean versionMatch;
     
    -    public Object getValue() {
    -      return value;
    +    @JsonCreator
    +    public DrillbitInfo(String address, boolean initialized, String version, boolean
versionMatch) {
    +      this.address = address;
    +      this.initialized = initialized;
    +      this.version = version;
    +      this.versionMatch = versionMatch;
         }
     
    +    public String getAddress() {
    +      return address;
    +    }
    +
    +    public String isInitialized() {
    +      return initialized ? "initialized" : "not initialized";
    +    }
    +
    +    public String getVersion() {
    +      return version;
    +    }
    +
    +    public boolean isVersionMatch() {
    +      return versionMatch;
    +    }
    +
    +    @Override
    +    public int compareTo(DrillbitInfo o) {
    --- End diff --
    
    We store all drillbits in Set, we need compareTo method so they are displayed sorted.
First we display current drillbit, then all drillbits with version match and then all drillbits
with version mismatch. I'll add appropriate comments.


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