blob: 60926969a7eb0f20988cea90bd63b4c130ebbf61 (
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
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
|
/*******************************************************************************
* Copyright (c) 2014 Wind River Systems, Inc.
* 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:
* Markus Schorn - initial API and implementation
*******************************************************************************/
package org.eclipse.tcf.te.tcf.remote.core.operation;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.OperationCanceledException;
import org.eclipse.core.runtime.Status;
import org.eclipse.core.runtime.SubMonitor;
import org.eclipse.tcf.protocol.Protocol;
import org.eclipse.tcf.te.tcf.remote.core.activator.CoreBundleActivator;
public abstract class TCFOperation <R> {
private IStatus fError;
private R fResult;
private boolean fDone;
protected final boolean shallAbort(IStatus status) {
synchronized (this) {
if (fDone)
return true;
if (!status.isOK()) {
setError(status);
return true;
}
return false;
}
}
protected final boolean shallAbort(Throwable error) {
synchronized (this) {
if (fDone)
return true;
if (error != null) {
setError(error);
return true;
}
return false;
}
}
protected final void setError(Throwable error) {
setError(createStatus(error.getMessage(), error));
}
protected final Status createStatus(String msg, Throwable error) {
return new Status(IStatus.ERROR, CoreBundleActivator.getUniqueIdentifier(), msg, error);
}
protected final void setError(IStatus error) {
synchronized (this) {
fError = error;
fDone = true;
notifyAll();
}
}
protected void setResult(R result) {
synchronized (this) {
fResult = result;
fDone = true;
notifyAll();
}
}
protected R waitForResult(SubMonitor sm) throws CoreException, InterruptedException, OperationCanceledException {
synchronized (this) {
while (!fDone) {
if (sm.isCanceled()) {
fDone = true;
throw new OperationCanceledException();
}
wait(1000);
}
if (fError != null) {
throw new CoreException(fError);
}
return fResult;
}
}
public final R execute(SubMonitor sm) throws CoreException, OperationCanceledException {
Protocol.invokeLater(new Runnable() {
@Override
public void run() {
doExecute();
}
});
try {
return waitForResult(sm);
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
throw new OperationCanceledException();
}
}
protected abstract void doExecute();
}
|
