[Hawkular-commits] [hawkular/hawkular-metrics] 933ec5: [HWKMETRICS-523] Add tag exists and not exists exp...

[Stefan Negrea]

  Branch: refs/heads/HWKMETRICS-523_2
  Home:   https://github.com/hawkular/hawkular-metrics
  Commit: 933ec5c33bddb5919ea8461f66a227625bf20920
      https://github.com/hawkular/hawkular-metrics/commit/933ec5c33bddb5919ea8461f66a227625bf20920
  Author: Stefan Negrea <snegrea at redhat.com>
  Date:   2017-01-24 (Tue, 24 Jan 2017)

  Changed paths:
    M core/metrics-core-service/src/main/antlr4/org/hawkular/metrics/core/service/tags/parser/TagQuery.g4
    M core/metrics-core-service/src/main/java/org/hawkular/metrics/core/service/tags/ExpressionTagQueryParser.java
    M core/metrics-core-service/src/main/java/org/hawkular/metrics/core/service/tags/parser/TagQueryBaseListener.java
    M core/metrics-core-service/src/main/java/org/hawkular/metrics/core/service/tags/parser/TagQueryBaseVisitor.java
    M core/metrics-core-service/src/main/java/org/hawkular/metrics/core/service/tags/parser/TagQueryListener.java
    M core/metrics-core-service/src/main/java/org/hawkular/metrics/core/service/tags/parser/TagQueryParser.java
    M core/metrics-core-service/src/main/java/org/hawkular/metrics/core/service/tags/parser/TagQueryVisitor.java
    A core/metrics-core-service/src/main/java/org/hawkular/metrics/core/service/transformers/MetricIdFromMetricIndexRowTransformer.java
    M core/metrics-core-service/src/test/java/org/hawkular/metrics/core/service/metrics/ExpressionTagQueryITest.java

  Log Message:
  -----------
  [HWKMETRICS-523] Add tag exists and not exists expression syntax and resolution.

Also, avoid complex set operations by using just the distinct operator on the observable set.