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
238
239
|
/****************************************************************************
* Copyright (c) 2008 Composent, Inc. 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:
* Composent, Inc. - initial API and implementation
*****************************************************************************/
package org.eclipse.ecf.internal.examples.remoteservices.client;
import java.util.Arrays;
import org.eclipse.ecf.core.ContainerConnectException;
import org.eclipse.ecf.core.ContainerCreateException;
import org.eclipse.ecf.core.IContainer;
import org.eclipse.ecf.core.identity.ID;
import org.eclipse.ecf.core.util.IAsyncResult;
import org.eclipse.ecf.discovery.ui.views.AbstractRemoteServiceAccessHandler;
import org.eclipse.ecf.examples.remoteservices.common.IRemoteEnvironmentInfo;
import org.eclipse.ecf.remoteservice.IRemoteCall;
import org.eclipse.ecf.remoteservice.IRemoteCallListener;
import org.eclipse.ecf.remoteservice.IRemoteService;
import org.eclipse.ecf.remoteservice.IRemoteServiceContainerAdapter;
import org.eclipse.ecf.remoteservice.IRemoteServiceReference;
import org.eclipse.ecf.remoteservice.events.IRemoteCallCompleteEvent;
import org.eclipse.ecf.remoteservice.events.IRemoteCallEvent;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.action.ActionContributionItem;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.action.IContributionItem;
import org.eclipse.jface.dialogs.InputDialog;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.window.Window;
import org.eclipse.osgi.util.NLS;
import org.eclipse.swt.widgets.Display;
public class RemoteEnvironmentInfoServiceAccessHandler extends AbstractRemoteServiceAccessHandler {
public RemoteEnvironmentInfoServiceAccessHandler() {
}
protected IContributionItem[] getContributionsForMatchingService() {
// If singleton not already set, create a new container (of type specified in serviceInfo
// and set the singleton to it. If we can't create it for whatever reason, we have no
// contribution
if (Activator.getDefault().getContainer() == null) {
try {
final IContainer c = createContainer();
final IRemoteServiceContainerAdapter adapter = (IRemoteServiceContainerAdapter) c.getAdapter(IRemoteServiceContainerAdapter.class);
if (adapter == null)
return EMPTY_CONTRIBUTION;
Activator.getDefault().setContainer(c);
} catch (final ContainerCreateException e) {
return EMPTY_CONTRIBUTION;
}
}
// The container is now not null
final IContainer container = Activator.getDefault().getContainer();
// not connected already...so setup contribution that allows connect
final String ns = getConnectNamespace();
final String id = getConnectID();
// If there is no connect namespace or connect id specified, then we have no contribution
if (container == null || ns == null || id == null)
return EMPTY_CONTRIBUTION;
// Create a new connect id from namespace and id
ID connectTargetID = null;
try {
connectTargetID = createID(ns, id);
} catch (final Exception e) {
return EMPTY_CONTRIBUTION;
}
final ID connectedID = container.getConnectedID();
// If the container is not already connected
if (connectedID != null) {
// If we're already connected, and connected to the *wrong* remote, then disconnect
if (!connectedID.equals(connectTargetID)) {
container.disconnect();
// Otherwise we're already connected to the correct container, and we get the normal contributions
} else
return getConnectedContributions(container);
}
// Otherwise we need to connect so we create a contribution to allow the user to connect
// Now we get the contribution to make connection to correct connectTargetID
final ID cTargetID = connectTargetID;
final IAction action = new Action() {
public void run() {
try {
// Then we connect
connectContainer(container, cTargetID, null);
} catch (ContainerConnectException e) {
showException(e);
}
}
};
action.setText(NLS.bind("Connect to {0}", connectTargetID.getName()));
return new IContributionItem[] {new ActionContributionItem(action)};
}
protected IContributionItem[] getContributionItemsForService(final IRemoteServiceContainerAdapter adapter) {
final String className = getRemoteServiceClass();
if (className == null)
return NOT_AVAILABLE_CONTRIBUTION;
else if (className.equals(IRemoteEnvironmentInfo.class.getName()))
return getContributionItemsForRemoteEnvironmentService(adapter);
else
return NOT_AVAILABLE_CONTRIBUTION;
}
protected IRemoteCall createRemoteCall() {
final InputDialog input = new InputDialog(null, "Get property", "Enter property key", "user.name", null);
input.setBlockOnOpen(true);
final Object[] params = new Object[1];
if (input.open() == Window.OK) {
params[0] = input.getValue();
return new IRemoteCall() {
public String getMethod() {
return "getProperty";
}
public Object[] getParameters() {
return params;
}
public long getTimeout() {
return 30000;
}
};
} else
return null;
}
private void showResult(final String serviceInterface, final IRemoteCall remoteCall, final Object result) {
final Object display = (result != null && result.getClass().isArray()) ? Arrays.asList((Object[]) result) : result;
final Object[] bindings = new Object[] {serviceInterface, remoteCall.getMethod(), Arrays.asList(remoteCall.getParameters()), display};
Display.getDefault().asyncExec(new Runnable() {
public void run() {
MessageDialog.openInformation(null, "Received Response", NLS.bind("Service: {0}\n\nMethod: {1}\nParameters: {2}\n\nResult: {3}", bindings));
}
});
}
private void showException(final Throwable t) {
Display.getDefault().asyncExec(new Runnable() {
public void run() {
MessageDialog.openInformation(null, "Received Exception", NLS.bind("Exception: {0}", t.getLocalizedMessage()));
}
});
}
private IContributionItem createContributionItem(final IRemoteService remoteService, final int invokeMode) {
final IAction action = new Action() {
public void run() {
try {
final IRemoteCall remoteCall = createRemoteCall();
if (remoteCall != null) {
switch (invokeMode) {
// callSynch
case 0 :
// Actually call
Object result = remoteService.callSynch(remoteCall);
// Show result
showResult(IRemoteEnvironmentInfo.class.getName(), remoteCall, result);
break;
// callAsynch (listener)
case 1 :
// Actually call
remoteService.callAsynch(remoteCall, new IRemoteCallListener() {
public void handleEvent(IRemoteCallEvent event) {
if (event instanceof IRemoteCallCompleteEvent) {
IRemoteCallCompleteEvent complete = (IRemoteCallCompleteEvent) event;
if (complete.hadException()) {
showException(complete.getException());
} else
showResult(IRemoteEnvironmentInfo.class.getName(), remoteCall, complete.getResponse());
}
}
});
break;
// callAsynch (future)
case 2 :
// Actually call
IAsyncResult asyncResult = remoteService.callAsynch(remoteCall);
// Show result
showResult(IRemoteEnvironmentInfo.class.getName(), remoteCall, asyncResult.get());
break;
// proxy
case 3 :
IRemoteEnvironmentInfo proxy = (IRemoteEnvironmentInfo) remoteService.getProxy();
// Actually call
Object proxyResult = proxy.getProperty((String) remoteCall.getParameters()[0]);
showResult(IRemoteEnvironmentInfo.class.getName(), remoteCall, proxyResult);
break;
}
}
} catch (Exception e) {
MessageDialog.openError(null, "Invoke Exception", e.getLocalizedMessage());
}
}
};
// Set menu item text
switch (invokeMode) {
case 0 :
action.setText("getProperty (s)");
break;
case 1 :
action.setText("getProperty (a)");
break;
case 2 :
action.setText("getProperty (f)");
break;
case 3 :
action.setText("getProperty (p)");
break;
}
return new ActionContributionItem(action);
}
/**
* @param adapter
* @return
*/
private IContributionItem[] getContributionItemsForRemoteEnvironmentService(final IRemoteServiceContainerAdapter adapter) {
try {
final IRemoteServiceReference[] references = getRemoteServiceReferences(adapter);
if (references == null)
return NOT_AVAILABLE_CONTRIBUTION;
final IRemoteService remoteService = adapter.getRemoteService(references[0]);
return new IContributionItem[] {createContributionItem(remoteService, 0), createContributionItem(remoteService, 1), createContributionItem(remoteService, 2), createContributionItem(remoteService, 3)};
} catch (final Exception e1) {
return NOT_AVAILABLE_CONTRIBUTION;
}
}
}
|
