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
108
109
110
111
112
113
114
115
116
117
118
119
120
121
|
// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.service.model;
import com.yahoo.config.model.api.ApplicationInfo;
import com.yahoo.config.provision.ApplicationId;
import com.yahoo.config.provision.Zone;
import com.yahoo.jdisc.Metric;
import com.yahoo.jdisc.Timer;
import com.yahoo.vespa.applicationmodel.ApplicationInstance;
import com.yahoo.vespa.applicationmodel.ApplicationInstanceReference;
import com.yahoo.vespa.applicationmodel.HostName;
import com.yahoo.vespa.applicationmodel.ServiceInstance;
import com.yahoo.vespa.service.duper.DuperModelManager;
import com.yahoo.vespa.service.manager.MonitorManager;
import com.yahoo.vespa.service.manager.UnionMonitorManager;
import com.yahoo.vespa.service.monitor.ServiceHostListener;
import com.yahoo.vespa.service.monitor.ServiceModel;
import com.yahoo.vespa.service.monitor.ServiceMonitor;
import com.yahoo.vespa.service.monitor.ServiceStatusProvider;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import java.util.Set;
/**
* An uncached supplier of ServiceModel based on the DuperModel and MonitorManager.
*
* @author hakonhall
*/
public class ServiceModelProvider implements ServiceMonitor {
private final ServiceMonitorMetrics metrics;
private final DuperModelManager duperModelManager;
private final ModelGenerator modelGenerator;
private final ServiceStatusProvider serviceStatusProvider;
public ServiceModelProvider(DuperModelManager duperModelManager,
UnionMonitorManager monitorManager,
Metric metric,
Timer timer,
Zone zone) {
this(monitorManager,
new ServiceMonitorMetrics(metric, timer),
duperModelManager,
new ModelGenerator(zone)
);
}
ServiceModelProvider(MonitorManager monitorManager,
ServiceMonitorMetrics metrics,
DuperModelManager duperModelManager,
ModelGenerator modelGenerator) {
this.serviceStatusProvider = monitorManager;
this.metrics = metrics;
this.duperModelManager = duperModelManager;
this.modelGenerator = modelGenerator;
duperModelManager.registerListener(monitorManager);
}
@Override
public ServiceModel getServiceModelSnapshot() {
try (LatencyMeasurement measurement = metrics.startServiceModelSnapshotLatencyMeasurement()) {
return modelGenerator.toServiceModel(duperModelManager.getApplicationInfos(), serviceStatusProvider);
}
}
@Override
public Set<ApplicationInstanceReference> getAllApplicationInstanceReferences() {
return modelGenerator.toApplicationInstanceReferenceSet(duperModelManager.getApplicationInfos());
}
@Override
public Optional<ApplicationInstance> getApplication(HostName hostname) {
Optional<ApplicationInfo> applicationInfo = getApplicationInfo(hostname);
if (applicationInfo.isEmpty()) {
return Optional.empty();
}
return Optional.of(modelGenerator.toApplicationInstance(applicationInfo.get(), serviceStatusProvider));
}
@Override
public Optional<ApplicationInstance> getApplication(ApplicationInstanceReference reference) {
return getApplicationInfo(reference)
.map(applicationInfo -> modelGenerator.toApplicationInstance(applicationInfo, serviceStatusProvider));
}
@Override
public Optional<ApplicationInstance> getApplicationNarrowedTo(HostName hostname) {
Optional<ApplicationInfo> applicationInfo = getApplicationInfo(hostname);
if (applicationInfo.isEmpty()) {
return Optional.empty();
}
return Optional.of(modelGenerator.toApplicationNarrowedToHost(
applicationInfo.get(), hostname, serviceStatusProvider));
}
@Override
public Map<HostName, List<ServiceInstance>> getServicesByHostname() {
return getServiceModelSnapshot().getServiceInstancesByHostName();
}
@Override
public void registerListener(ServiceHostListener listener) {
var duperModelListener = ServiceHostListenerAdapter.asDuperModelListener(listener, modelGenerator);
duperModelManager.registerListener(duperModelListener);
}
private Optional<ApplicationInfo> getApplicationInfo(ApplicationInstanceReference reference) {
ApplicationId applicationId = ApplicationInstanceGenerator.toApplicationId(reference);
return duperModelManager.getApplicationInfo(applicationId);
}
private Optional<ApplicationInfo> getApplicationInfo(HostName hostname) {
// The duper model uses HostName from config.provision, which is more natural than applicationmodel.
var configProvisionHostname = com.yahoo.config.provision.HostName.from(hostname.s());
return duperModelManager.getApplicationInfo(configProvisionHostname);
}
}
|
