blob: 994bfc0fc3fce02275a70c2529acf09dddbf907e (
plain) (
blame)
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
|
// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.jdisc.application;
import com.google.inject.Inject;
import com.google.inject.Provider;
import com.yahoo.jdisc.Metric;
import java.util.Map;
/**
* @author Simon Thoresen Hult
*/
class MetricImpl implements Metric {
private final LocalConsumer consumer;
@Inject
public MetricImpl(Provider<MetricConsumer> provider) {
consumer = new LocalConsumer(provider);
}
@Override
public void set(String key, Number val, Context ctx) {
MetricConsumer consumer = currentConsumer();
if (consumer != null) {
consumer.set(key, val, ctx);
}
}
@Override
public void add(String key, Number val, Context ctx) {
MetricConsumer consumer = currentConsumer();
if (consumer != null) {
consumer.add(key, val, ctx);
}
}
@Override
public Context createContext(Map<String, ?> keys) {
MetricConsumer consumer = currentConsumer();
if (consumer == null) {
return null;
}
return consumer.createContext(keys);
}
private MetricConsumer currentConsumer() {
return Thread.currentThread() instanceof ContainerThread thread ? thread.consumer() : consumer.get();
}
private static class LocalConsumer extends ThreadLocal<MetricConsumer> {
final Provider<MetricConsumer> factory;
LocalConsumer(Provider<MetricConsumer> factory) {
this.factory = factory;
}
@Override
protected MetricConsumer initialValue() {
return factory.get();
}
}
}
|