qa/src/test/resources/test-app-with-enrichers-slightly-simpler.yaml

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# example showing how enrichers can be set 
#
name: test-app-with-enrichers
description: Testing many enrichers
services:
- type: org.apache.brooklyn.entity.group.DynamicCluster
  id: cluster
  initialSize: 3
  location: localhost
  memberSpec:
    $brooklyn:entitySpec:
      type: org.apache.brooklyn.core.test.entity.TestEntity
      brooklyn.enrichers:
      - type: org.apache.brooklyn.enricher.stock.Transformer
        # transform "ip" (which we expect a feed, not shown here, to set) to a URL;
        # you can curl an address string to the sensors/ip endpoint an entity to trigger these enrichers 
        brooklyn.config:
          enricher.sourceSensor: $brooklyn:sensor("ip")
          enricher.targetSensor: $brooklyn:sensor("url")
          enricher.targetValue: $brooklyn:formatString("http://%s/", $brooklyn:attributeWhenReady("ip"))
      - type: org.apache.brooklyn.enricher.stock.Propagator
        # use propagator to duplicate one sensor as another, giving the supplied sensor mapping;
        # the other use of Propagator is where you specify a producer (using $brooklyn:entity(...) as below)
        # from which to take sensors; in that mode you can specify `propagate` as a list of sensors whose names are unchanged,
        # instead of (or in addition to) this map 
        brooklyn.config:
          producer: $brooklyn:component("this", "ignored")
          sensorMapping:
            $brooklyn:sensor("url"): $brooklyn:sensor("org.apache.brooklyn.core.entity.Attributes", "main.uri")
  brooklyn.enrichers:
  - type: org.apache.brooklyn.enricher.stock.Aggregator
    # aggregate `url` sensors from children into a list
    brooklyn.config:
      enricher.sourceSensor: $brooklyn:sensor("url")
      enricher.targetSensor: $brooklyn:sensor("urls.list")
      enricher.aggregating.fromMembers: true
  - type: org.apache.brooklyn.enricher.stock.Joiner
    # create a string from that list, for use e.g. in bash scripts
    brooklyn.config:
      enricher.sourceSensor: $brooklyn:sensor("urls.list")
      enricher.targetSensor: $brooklyn:sensor("urls.list.comma_separated.max_2")
      maximum: 2
      # TODO infer uniqueTag, name etc
      uniqueTag: urls.list.comma_separated.max_2
  - type: org.apache.brooklyn.enricher.stock.Joiner
    # pick one uri as the main one to use
    brooklyn.config:
      enricher.sourceSensor: $brooklyn:sensor("urls.list")
      enricher.targetSensor: $brooklyn:sensor("org.apache.brooklyn.core.entity.Attributes", "main.uri")
      quote: false
      maximum: 1
brooklyn.enrichers:
- type: org.apache.brooklyn.enricher.stock.Propagator
  # if nothing specified for `propagating` or `sensorMapping` then 
  # Propagator will do all but the usual lifecycle defaults, handy at the root!
  brooklyn.config:
    producer: $brooklyn:entity("cluster")
    propagatingAll: true