blob: 0d54a3bcdd63c3e201b7b39b3aa223e149dfce1c (
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
65
66
67
68
69
70
71
72
|
/*******************************************************************************
* Copyright (c) 2004 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*
*******************************************************************************/
package org.eclipse.wst.sse.core;
import org.eclipse.core.runtime.Platform;
import org.eclipse.wst.sse.core.internal.SSECorePlugin;
import org.eclipse.wst.sse.core.internal.model.ModelManagerImpl;
import org.eclipse.wst.sse.core.internal.provisional.IModelManager;
import org.osgi.framework.Bundle;
/**
* Class to allow access to ModelManager. Not intended to be subclassed.
*
* @since 1.5 org.eclipse.wst.sse.core
*/
final public class StructuredModelManager {
/**
* Do not allow instances to be created.
*/
private StructuredModelManager() {
super();
}
/**
* Provides access to the instance of IModelManager. Returns null if model
* manager can not be created or is not valid (such as, when workbench is
* shutting down).
*
* @return IModelManager - returns the one model manager for structured
* model
*/
public static IModelManager getModelManager() {
boolean isReady = false;
IModelManager modelManager = null;
while (!isReady) {
Bundle localBundle = Platform.getBundle(SSECorePlugin.ID);
int state = localBundle.getState();
if (state == Bundle.ACTIVE) {
isReady = true;
// getInstance is a synchronized static method.
modelManager = ModelManagerImpl.getInstance();
}
else if (state == Bundle.STARTING) {
try {
Thread.sleep(100);
}
catch (InterruptedException e) {
// ignore, just loop again
}
}
else if (state == Bundle.STOPPING || state == Bundle.UNINSTALLED) {
isReady = true;
modelManager = null;
}
else {
// not sure about other states, 'resolved', 'installed'
isReady = true;
modelManager = null;
}
}
return modelManager;
}
}
|
