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
|
// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.hosted.provision.applications;
import com.yahoo.config.provision.ClusterResources;
import java.time.Duration;
import java.time.Instant;
import java.util.Objects;
import java.util.Optional;
/**
* A recording of a change in resources for an application cluster
*
* @author bratseth
*/
public class ScalingEvent {
private final ClusterResources from, to;
private final long generation;
private final Instant at;
private final Optional<Instant> completion;
/** Do not use */
public ScalingEvent(ClusterResources from,
ClusterResources to,
long generation,
Instant at,
Optional<Instant> completion) {
this.from = from;
this.to = to;
this.generation = generation;
this.at = at;
this.completion = completion;
}
/** Returns the resources we changed from */
public ClusterResources from() { return from; }
/** Returns the resources we changed to */
public ClusterResources to() { return to; }
/** Returns the application config generation resulting from this deployment */
public long generation() { return generation; }
/** Returns the time of this deployment */
public Instant at() { return at; }
/** Returns the instant this completed, or empty if it is not yet complete as far as we know */
public Optional<Instant> completion() { return completion; }
/** Returns the time this event took to completion, or empty if it's not yet complete */
public Optional<Duration> duration() {
if (completion.isEmpty()) return Optional.empty();
return Optional.of(Duration.between(at, completion.get()));
}
public ScalingEvent withCompletion(Instant completion) {
return new ScalingEvent(from, to, generation, at, Optional.of(completion));
}
@Override
public int hashCode() { return Objects.hash(from, to, generation, at); }
@Override
public boolean equals(Object o) {
if (o == this) return true;
if ( ! (o instanceof ScalingEvent other)) return true;
if ( other.generation != this.generation) return false;
if ( ! other.at.equals(this.at)) return false;
if ( ! other.from.equals(this.from)) return false;
if ( ! other.to.equals(this.to)) return false;
if ( ! other.completion.equals(this.completion)) return false;
return true;
}
@Override
public String toString() {
return "scaling event from " + from + " to " + to + ", generation " + generation + " at " + at +
(completion.isPresent() ? " completed " + completion.get() : "");
}
public static ScalingEvent create(ClusterResources from, ClusterResources to, long generation, Instant at) {
return new ScalingEvent(from, to, generation, at, Optional.empty());
}
}
|
