@Override
public void onManagementBecomingMaster() {
// Enricher attribute setup. A way of automatically discovering these (but avoiding
// averaging things like HTTP port and response codes) would be neat.
List<? extends List<? extends AttributeSensor<? extends Number>>> summingEnricherSetup =
ImmutableList.of(
ImmutableList.of(REQUEST_COUNT, REQUEST_COUNT),
ImmutableList.of(ERROR_COUNT, ERROR_COUNT),
ImmutableList.of(REQUESTS_PER_SECOND_LAST, REQUESTS_PER_SECOND_LAST),
ImmutableList.of(REQUESTS_PER_SECOND_IN_WINDOW, REQUESTS_PER_SECOND_IN_WINDOW),
ImmutableList.of(TOTAL_PROCESSING_TIME, TOTAL_PROCESSING_TIME));
List<? extends List<? extends AttributeSensor<? extends Number>>> averagingEnricherSetup =
ImmutableList.of(
ImmutableList.of(REQUEST_COUNT, REQUEST_COUNT_PER_NODE),
ImmutableList.of(ERROR_COUNT, ERROR_COUNT_PER_NODE),
ImmutableList.of(REQUESTS_PER_SECOND_LAST, REQUESTS_PER_SECOND_LAST_PER_NODE),
ImmutableList.of(REQUESTS_PER_SECOND_IN_WINDOW, REQUESTS_PER_SECOND_IN_WINDOW_PER_NODE),
ImmutableList.of(TOTAL_PROCESSING_TIME, TOTAL_PROCESSING_TIME_PER_NODE));
for (List<? extends AttributeSensor<? extends Number>> es : summingEnricherSetup) {
AttributeSensor<? extends Number> t = es.get(0);
AttributeSensor<? extends Number> total = es.get(1);
enrichers()
.add(
Enrichers.builder()
.aggregating(t)
.publishing(total)
.fromMembers()
.computingSum()
.build());
}
for (List<? extends AttributeSensor<? extends Number>> es : averagingEnricherSetup) {
@SuppressWarnings("unchecked")
AttributeSensor<Number> t = (AttributeSensor<Number>) es.get(0);
@SuppressWarnings("unchecked")
AttributeSensor<Double> average = (AttributeSensor<Double>) es.get(1);
// TODO This needs to respond to changes in FABRIC_SIZE as well, to recalculate
enrichers()
.add(
Enrichers.builder()
.transforming(t)
.publishing(average)
.computing(
new Function<Number, Double>() {
@Override
public Double apply(@Nullable Number input) {
Integer size = getAttribute(DynamicWebAppFabric.FABRIC_SIZE);
return (size != null && input != null)
? (input.doubleValue() / size)
: null;
}
})
.build());
}
}
@Test
public void testAggregatingMembersEnricher() throws Exception {
origApp.start(ImmutableList.of(origLoc));
origCluster.resize(2);
origApp.addEnricher(
Enrichers.builder()
.aggregating(METRIC1)
.from(origCluster)
.fromMembers()
.computing(StringFunctions.joiner(","))
.publishing(METRIC2)
.build());
TestApplication newApp = rebind();
DynamicCluster newCluster =
(DynamicCluster)
Iterables.find(newApp.getChildren(), Predicates.instanceOf(DynamicCluster.class));
int i = 1;
for (Entity member : newCluster.getMembers()) {
((EntityInternal) member).setAttribute(METRIC1, "myval" + (i++));
}
EntityTestUtils.assertAttributeEventually(
newApp,
METRIC2,
Predicates.or(Predicates.equalTo("myval1,myval2"), Predicates.equalTo("myval2,myval1")));
}
@Test
public void testPropagatingEnricher() throws Exception {
origApp.addEnricher(Enrichers.builder().propagating(METRIC1).from(origEntity).build());
TestApplication newApp = rebind();
TestEntity newEntity =
(TestEntity) Iterables.find(newApp.getChildren(), Predicates.instanceOf(TestEntity.class));
newEntity.setAttribute(METRIC1, "myval");
EntityTestUtils.assertAttributeEqualsEventually(newApp, METRIC1, "myval");
}
@Override
public void init() {
super.init();
ConfigToAttributes.apply(this, MESOS_SLAVE_ID);
EnricherSpec<?> serviceUp =
Enrichers.builder()
.propagating(ImmutableMap.of(SLAVE_ACTIVE, SERVICE_UP))
.from(this)
.build();
enrichers().add(serviceUp);
}
@SuppressWarnings("unchecked")
@Test
public void testCombiningEnricher() throws Exception {
origApp.addEnricher(
Enrichers.builder()
.combining(METRIC1, METRIC2)
.from(origEntity)
.computing(StringFunctions.joiner(","))
.publishing(METRIC2)
.build());
TestApplication newApp = rebind();
TestEntity newEntity =
(TestEntity) Iterables.find(newApp.getChildren(), Predicates.instanceOf(TestEntity.class));
newEntity.setAttribute(METRIC1, "myval");
newEntity.setAttribute(METRIC2, "myval2");
EntityTestUtils.assertAttributeEventually(
newApp,
METRIC2,
Predicates.or(Predicates.equalTo("myval,myval2"), Predicates.equalTo("myval2,myval")));
}