Github user neykov commented on a diff in the pull request:
https://github.com/apache/brooklyn-server/pull/295#discussion_r74423357
--- Diff:
core/src/main/java/org/apache/brooklyn/entity/stock/ConditionalEntityImpl.java
---
@@ -19,25 +19,72 @@
package org.apache.brooklyn.entity.stock;
import java.util.Collection;
+import java.util.Set;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
import org.apache.brooklyn.api.entity.Entity;
import org.apache.brooklyn.api.entity.EntitySpec;
import org.apache.brooklyn.api.location.Location;
+import org.apache.brooklyn.api.sensor.AttributeSensor;
+import org.apache.brooklyn.core.entity.Attributes;
+import org.apache.brooklyn.core.entity.Entities;
+import org.apache.brooklyn.core.entity.lifecycle.Lifecycle;
+import org.apache.brooklyn.core.entity.lifecycle.ServiceStateLogic;
+import org.apache.brooklyn.core.entity.trait.Startable;
+import org.apache.brooklyn.core.location.Locations;
+import org.apache.brooklyn.enricher.stock.Enrichers;
+import org.apache.brooklyn.util.collections.MutableSet;
+import org.apache.brooklyn.util.exceptions.Exceptions;
public class ConditionalEntityImpl extends BasicStartableImpl implements
ConditionalEntity {
+ private static final Logger LOG =
LoggerFactory.getLogger(BasicStartableImpl.class);
+
@Override
public void start(Collection<? extends Location> locations) {
- Entity child = sensors().get(CONDITIONAL_ENTITY);
- EntitySpec<?> spec = config().get(CONDITIONAL_ENTITY_SPEC);
- Boolean create = config().get(CREATE_CONDITIONAL_ENTITY);
-
- // Child not yet created; Entity spec is present; Create flag is
true
- if (child == null && spec != null && Boolean.TRUE.equals(create)) {
- Entity created = addChild(EntitySpec.create(spec));
- sensors().set(CONDITIONAL_ENTITY, created);
+ try {
+ ServiceStateLogic.setExpectedState(this, Lifecycle.STARTING);
+
+ Entity child = sensors().get(CONDITIONAL_ENTITY);
+ EntitySpec<?> spec = config().get(CONDITIONAL_ENTITY_SPEC);
+ Boolean create = config().get(CREATE_CONDITIONAL_ENTITY);
+ Boolean propagate =
config().get(PROPAGATE_CONDITIONAL_ENTITY_SENSORS);
+ Set<AttributeSensor<?>> sensors =
MutableSet.copyOf(config().get(CONDITIONAL_ENTITY_SENSOR_LIST));
+
+ addLocations(locations);
+ locations = Locations.getLocationsCheckingAncestors(locations,
this);
+ LOG.info("Starting entity "+this+" at "+locations);
+
+ // Child not yet created; Entity spec is present; Create flag
is true
+ if (child == null && spec != null &&
Boolean.TRUE.equals(create)) {
+ child = addChild(EntitySpec.create(spec));
+ sensors().set(CONDITIONAL_ENTITY, child);
+
+ // Add enrichers for sensor propagateion
+
enrichers().add(Enrichers.builder().propagating(Startable.SERVICE_UP).from(child).build());
+ if (Boolean.TRUE.equals(propagate)) {
+ if (sensors.isEmpty()) {
+
enrichers().add(Enrichers.builder().propagatingAllButUsualAnd().from(child).build());
+ } else {
+
enrichers().add(Enrichers.builder().propagating(sensors).from(child).build());
+ }
+ }
+ }
+
+ // Start child if create flag is set; otherwise just set
service.isUp
+ if (Boolean.TRUE.equals(create)) {
+ Entities.invokeEffectorWithArgs(this, child,
Startable.START, locations).getUnchecked();
+ } else {
+ sensors().set(Attributes.SERVICE_UP, true);
--- End diff --
Similar to the previous comment on `SERVICE_UP` propagation you could
control the sensor value by adding/removing values in the `notUp` map.
`AbstractApplication` is a good example of the approach.
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