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comparison examples/entrysizer/TestSizer.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 package entrysizer;
2
3 import net.jini.core.entry.Entry;
4
5 import org.dancres.blitz.mangler.EntrySizer;
6
7 /**
8 This class demonstrates how to use the Blitz EntrySizer which can be
9 used to give an approximate size for an Entry once it's marshalled and
10 ready for storage in the Blitz backend. This is useful for sizing heap,
11 caches and disk storage (for a persistent or time-barrier-persistent
12 Blitz).
13 */
14 public class TestSizer {
15 public static void main(String args[]) {
16 try {
17 /*
18 Create an EntrySizer instance (EntrySizer is stateless)
19 */
20 EntrySizer mySizer = new EntrySizer();
21
22 /*
23 Create some example Entry's
24 */
25 Entry[] myEntrys = new Entry[] {new DummyEntry("a"),
26 new DummyEntry("abcdefgh"),
27 new DummyEntry(null)};
28
29 /*
30 For each example, get a size estimate from the Sizer.
31 */
32 for (int i = 0; i < myEntrys.length; i++) {
33 System.out.println("Size of: " + myEntrys[i] + " = " +
34 mySizer.computeSize(myEntrys[i]));
35 }
36 } catch (Exception anE) {
37 System.err.println("Whoops, didn't work");
38 anE.printStackTrace(System.err);
39 }
40 }
41 }