-
Notifications
You must be signed in to change notification settings - Fork 93
/
BasicStartableImpl.java
107 lines (95 loc) · 4.44 KB
/
BasicStartableImpl.java
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.brooklyn.entity.stock;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import org.apache.brooklyn.api.entity.Entity;
import org.apache.brooklyn.api.location.Location;
import org.apache.brooklyn.api.mgmt.Task;
import org.apache.brooklyn.core.entity.AbstractEntity;
import org.apache.brooklyn.core.entity.Attributes;
import org.apache.brooklyn.core.entity.Entities;
import org.apache.brooklyn.core.entity.EntityPredicates;
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.entity.trait.StartableMethods;
import org.apache.brooklyn.core.location.Locations;
import org.apache.brooklyn.util.exceptions.Exceptions;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.google.common.base.Predicates;
import com.google.common.collect.Iterables;
import com.google.common.collect.Lists;
public class BasicStartableImpl extends AbstractEntity implements BasicStartable {
private static final Logger log = LoggerFactory.getLogger(BasicStartableImpl.class);
@Override
public void start(Collection<? extends Location> locations) {
try {
ServiceStateLogic.setExpectedState(this, Lifecycle.STARTING);
addLocations(locations);
locations = Locations.getLocationsCheckingAncestors(locations, this);
log.info("Starting entity "+this+" at "+locations);
// essentially does StartableMethods.start(this, locations),
// but optionally filters locations for each child
Locations.LocationsFilter filter = getConfig(LOCATIONS_FILTER);
Iterable<Entity> startables = filterStartableManagedEntities(getChildren());
if (!Iterables.isEmpty(startables)) {
List<Task<?>> tasks = Lists.newArrayListWithCapacity(Iterables.size(startables));
for (final Entity entity : startables) {
Collection<? extends Location> l2 = locations;
if (filter != null) {
l2 = filter.filterForContext(new ArrayList<Location>(locations), entity);
log.debug("Child " + entity + " of " + this + " being started in filtered location list: " + l2);
}
tasks.add(Entities.invokeEffectorWithArgs(this, entity, Startable.START, l2));
}
for (Task<?> t : tasks) {
t.getUnchecked();
}
}
sensors().set(Attributes.SERVICE_UP, true);
ServiceStateLogic.setExpectedState(this, Lifecycle.RUNNING);
} catch (Throwable t) {
ServiceStateLogic.setExpectedState(this, Lifecycle.ON_FIRE);
throw Exceptions.propagate(t);
}
}
@Override
public void stop() {
ServiceStateLogic.setExpectedState(this, Lifecycle.STOPPING);
sensors().set(SERVICE_UP, false);
try {
StartableMethods.stop(this);
ServiceStateLogic.setExpectedState(this, Lifecycle.STOPPED);
} catch (Exception e) {
ServiceStateLogic.setExpectedState(this, Lifecycle.ON_FIRE);
throw Exceptions.propagate(e);
}
}
@Override
public void restart() {
StartableMethods.restart(this);
}
// TODO make public in StartableMethods
private static Iterable<Entity> filterStartableManagedEntities(Iterable<Entity> contenders) {
return Iterables.filter(contenders, Predicates.and(Predicates.instanceOf(Startable.class), EntityPredicates.isManaged()));
}
}