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
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
|
/****************************************************************************
* Copyright (c) 2004 Composent, Inc. and others.
*
* This program and the accompanying materials are made
* available under the terms of the Eclipse Public License 2.0
* which is available at https://www.eclipse.org/legal/epl-2.0/
*
* Contributors:
* Composent, Inc. - initial API and implementation
*
* SPDX-License-Identifier: EPL-2.0
*****************************************************************************/
package org.eclipse.ecf.provider.generic;
import java.io.Serializable;
import java.security.AccessController;
import java.security.PrivilegedAction;
import org.eclipse.ecf.core.events.ContainerConnectedEvent;
import org.eclipse.ecf.core.events.ContainerDisconnectedEvent;
import org.eclipse.ecf.core.identity.ID;
import org.eclipse.ecf.core.sharedobject.ISharedObject;
import org.eclipse.ecf.core.sharedobject.SharedObjectInitException;
import org.eclipse.ecf.core.sharedobject.events.*;
import org.eclipse.ecf.core.sharedobject.util.QueueEnqueueImpl;
import org.eclipse.ecf.core.sharedobject.util.SimpleFIFOQueue;
import org.eclipse.ecf.core.util.Event;
import org.eclipse.ecf.core.util.Trace;
import org.eclipse.ecf.internal.provider.ECFProviderDebugOptions;
import org.eclipse.ecf.internal.provider.ProviderPlugin;
import org.eclipse.ecf.provider.generic.gmm.Member;
public class SOWrapper {
protected ISharedObject sharedObject;
private SOConfig sharedObjectConfig;
ID sharedObjectID;
private SOContainer container;
private ID containerID;
private Thread thread;
SimpleFIFOQueue queue;
protected SOWrapper(SOContainer.LoadingSharedObject obj, SOContainer cont) {
sharedObjectID = obj.getID();
sharedObject = obj;
container = cont;
containerID = cont.getID();
sharedObjectConfig = null;
thread = null;
queue = new SimpleFIFOQueue();
}
public SOWrapper(SOConfig aConfig, ISharedObject obj, SOContainer cont) {
sharedObjectConfig = aConfig;
sharedObjectID = sharedObjectConfig.getSharedObjectID();
sharedObject = obj;
container = cont;
containerID = cont.getID();
thread = null;
queue = new SimpleFIFOQueue();
}
protected void init() throws SharedObjectInitException {
debug("init()"); //$NON-NLS-1$
sharedObjectConfig.makeActive(new QueueEnqueueImpl(queue));
sharedObject.init(sharedObjectConfig);
}
protected ID getObjID() {
return sharedObjectConfig.getSharedObjectID();
}
protected ID getHomeID() {
return sharedObjectConfig.getHomeContainerID();
}
protected SOConfig getConfig() {
return sharedObjectConfig;
}
protected void activated() {
thread = (Thread) AccessController.doPrivileged(new PrivilegedAction() {
public Object run() {
Thread aThread = getThread();
return aThread;
}
});
// Notify container and listeners
container.notifySharedObjectActivated(sharedObjectID);
// Start thread
thread.start();
// Send message
send(new SharedObjectActivatedEvent(containerID, sharedObjectID));
}
protected void deactivated() {
container.notifySharedObjectDeactivated(sharedObjectID);
send(new SharedObjectDeactivatedEvent(containerID, sharedObjectID));
destroyed();
}
protected void destroyed() {
if (!queue.isStopped()) {
if (thread != null)
queue.enqueue(new DisposeEvent());
queue.close();
}
}
protected void otherChanged(ID otherID, boolean activated) {
if (activated && thread != null) {
send(new SharedObjectActivatedEvent(containerID, otherID));
} else {
send(new SharedObjectDeactivatedEvent(containerID, otherID));
}
}
protected void memberChanged(Member m, boolean add) {
if (thread != null) {
if (add) {
send(new ContainerConnectedEvent(containerID, m.getID()));
} else {
send(new ContainerDisconnectedEvent(containerID, m.getID()));
}
}
}
protected Thread getThread() {
return container.getNewSharedObjectThread(sharedObjectID, new Runnable() {
public void run() {
debug("runner(" + sharedObjectID + ")"); //$NON-NLS-1$ //$NON-NLS-2$
Event evt = null;
for (;;) {
if (Thread.currentThread().isInterrupted())
break;
evt = (Event) queue.dequeue();
if (Thread.currentThread().isInterrupted() || evt == null)
break;
try {
if (evt instanceof ProcEvent) {
SOWrapper.this.svc(((ProcEvent) evt).getEvent());
} else if (evt instanceof DisposeEvent) {
SOWrapper.this.doDestroy();
} else {
SOWrapper.this.svc(evt);
}
} catch (Throwable t) {
handleRuntimeException(t);
}
}
if (Thread.currentThread().isInterrupted()) {
debug("runner(" + sharedObjectID //$NON-NLS-1$
+ ") terminating interrupted"); //$NON-NLS-1$
} else {
debug("runner(" + sharedObjectID //$NON-NLS-1$
+ ") terminating normally"); //$NON-NLS-1$
}
}
});
}
private void send(Event evt) {
queue.enqueue(new ProcEvent(evt));
}
public static class ProcEvent implements Event {
Event theEvent = null;
public ProcEvent(Event event) {
theEvent = event;
}
Event getEvent() {
return theEvent;
}
}
protected static class DisposeEvent implements Event {
DisposeEvent() {
//
}
}
protected void svc(Event evt) {
sharedObject.handleEvent(evt);
}
protected void doDestroy() {
sharedObject.dispose(containerID);
// make config inactive
sharedObjectConfig.makeInactive();
}
protected void deliverSharedObjectMessage(ID fromID, Serializable data) {
send(new RemoteSharedObjectEvent(getObjID(), fromID, data));
}
protected void deliverCreateResponse(ID fromID, ContainerMessage.CreateResponseMessage resp) {
send(new RemoteSharedObjectCreateResponseEvent(resp.getSharedObjectID(), fromID, resp.getSequence(), resp.getException()));
}
public void deliverEvent(Event evt) {
send(evt);
}
protected void destroySelf() {
debug("destroySelf()"); //$NON-NLS-1$
send(new DisposeEvent());
}
public String toString() {
StringBuffer sb = new StringBuffer();
sb.append("SharedObjectWrapper[").append(getObjID()).append("]"); //$NON-NLS-1$ //$NON-NLS-2$
return sb.toString();
}
protected void debug(String msg) {
Trace.trace(ProviderPlugin.PLUGIN_ID, ECFProviderDebugOptions.SHAREDOBJECTWRAPPER, msg + ":oID=" + sharedObjectID + ":cID=" + container.getID()); //$NON-NLS-1$ //$NON-NLS-2$
}
protected void traceStack(String msg, Throwable e) {
Trace.catching(ProviderPlugin.PLUGIN_ID, ECFProviderDebugOptions.EXCEPTIONS_CATCHING, SOContainerGMM.class, container.getID() + ":" + msg, e); //$NON-NLS-1$
}
protected void handleRuntimeException(Throwable except) {
except.printStackTrace(System.err);
traceStack("runner:handleRuntimeException(" + sharedObjectID.getName() + ")", //$NON-NLS-1$ //$NON-NLS-2$
except);
}
protected ISharedObject getSharedObject() {
return sharedObject;
}
public SimpleFIFOQueue getQueue() {
return queue;
}
}
|
