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1
4 package com.tcsimulator;
5
6 import com.tc.object.config.ConfigVisitor;
7 import com.tc.object.config.DSOClientConfigHelper;
8 import com.tc.object.config.TransparencyClassSpec;
9 import com.tc.simulator.app.GlobalIdGenerator;
10
11 import java.util.ArrayList  ;
12 import java.util.List ;
13
14 public class DistributedGlobalIdGenerator implements GlobalIdGenerator {
15
16 private final List currentId = new ArrayList ();
17
18 public long nextId() {
19 synchronized (currentId) {
20 Long newId;
21 if (currentId.size() == 0) {
22 newId = new Long (0);
23 currentId.add(newId);
24 } else {
25 Long id = (Long ) currentId.get(0);
26 newId = new Long (id.longValue() + 1);
27 currentId.set(0, newId);
28 }
29 return newId.longValue();
30 }
31 }
32
33 public static void visitL1DSOConfig(ConfigVisitor visitor, DSOClientConfigHelper cfg) {
34 String classname = DistributedGlobalIdGenerator.class.getName();
35 TransparencyClassSpec spec = cfg.getOrCreateSpec(classname);
36 spec.addRoot("DistributedGlobalIdGeneratorcurrentId", classname + ".currentId");
37 cfg.addWriteAutolock("long " + classname + ".nextId()");
38 }
39
40 public static void visitDSOApplicationConfig(com.tc.object.config.ConfigVisitor visitor,
41 com.tc.object.config.DSOApplicationConfig config) {
42 String classname = DistributedGlobalIdGenerator.class.getName();
43 config.addIncludePattern(classname);
44 config.addRoot("DistributedGlobalIdGeneratorcurrentId", classname + ".currentId");
45 config.addWriteAutolock("* " + classname + ".*(..)");
46 }
47
48 }
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