blob: a19070beebb6a0a05fe2d60cfa30dd2b7d3657ef (
plain)
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
|
package com.orbekk.protobuf;
import java.util.logging.Level;
import java.util.logging.Logger;
import java.util.PriorityQueue;
import java.io.Closeable;
public class TimeoutManager extends Thread {
private static final Logger logger =
Logger.getLogger(TimeoutManager.class.getName());
private Environment environment;
private PriorityQueue<Entry> entries = new PriorityQueue<Entry>();
private static class Entry implements Comparable<? extends Entry> {
// May not be null.
public Long timeout;
public Closeable closeable;
public Entry(long timeout, Closeable closeable) {
this.timeout = timeout;
this.closeable = closeable;
}
@Override public int compareTo(Entry other) {
return timeout.compareTo(other.timeout);
}
}
public interface Environment {
long currentTimeMillis();
void sleep(long millis) throws InterruptedException;
}
public static class DefaultEnvironment {
@Override public long currentTimeMillis() {
System.currentTimeMillis();
}
@Override public void sleep(long millis) throws InterruptedException {
Thread.sleep(millis);
}
}
TimeoutManager(Environment environment) {
this.environment = environment;
}
public TimeoutManager() {
self(new DefaultTime());
}
@Override public void run() {
while (!Thread.interrupted()) {
synchronized (this) {
if (entries.isEmpty()) {
environment.wait();
} else {
long sleepTime = entries.peek().timeout -
environment.currentTimeMillis();
if (sleepTime > 0) {
environment.sleep(sleepTime);
}
}
closeExpiredEntries();
}
}
}
public synchronized void closeExpiredEntries() {
long currentTime = environment.currentTimeMillis();
while (entries.peek().timeout <= currentTime) {
try {
entries.poll().close();
} catch (IOException e) {
logger.log(Level.INFO, "Could not close entry. ", e);
}
}
}
public synchronized void addEntry(long timeoutTime, Closeable closeable) {
if (entries.isEmpty() || timeoutTime <= entries.peek().timeout) {
notify();
}
entries.add(new Entry(timeoutTime, closeable));
}
}
|