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comparison src/org/dancres/blitz/disk/BackoffGenerator.java @ 0:3dc0c5604566

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Initial checkin of blitz 2.0 fcs - no installer yet.
author Dan Creswell <dan.creswell@gmail.com>
date Sat, 21 Mar 2009 11:00:06 +0000
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-1:000000000000 0:3dc0c5604566
1 package org.dancres.blitz.disk;
2
3 import java.util.Random;
4
5 import java.util.logging.Level;
6
7 import net.jini.config.ConfigurationException;
8
9 import org.dancres.blitz.config.ConfigurationFactory;
10
11 public class BackoffGenerator {
12 private static final String LOAD_BACKOFF = "loadBackoff";
13
14 private static int BACKOFF_BASE;
15 private static int BACKOFF_JITTER;
16
17 static {
18 try {
19 int[] myBackoff =
20 (int[]) ConfigurationFactory.getEntry(LOAD_BACKOFF,
21 int[].class,
22 new int[]{50, 50});
23
24 BACKOFF_BASE = myBackoff[0];
25 BACKOFF_JITTER = myBackoff[1];
26 } catch (ConfigurationException aCE) {
27 RetryingUpdate.theLogger.log(Level.SEVERE,
28 "Failed to load backoff config", aCE);
29 }
30 }
31
32 private static Random theBackoffGenerator = new Random();
33
34 public static void pause() {
35 try {
36 Thread.sleep((long) (BACKOFF_BASE +
37 theBackoffGenerator.nextInt(BACKOFF_JITTER)));
38 } catch (InterruptedException anIE) {
39 }
40 }
41 }