@Override
protected void execute(final DataRequestMonitor<FormattedValueDMData> rm) {
DsfSession session = DsfSession.getSession(frame.getSessionId());
IExpressions expressions = dsfServicesTracker.getService(IExpressions.class);
if (expressions == null) {
rm.setStatus(
DsfUIPlugin.newErrorStatus(
IDsfStatusConstants.REQUEST_FAILED, "No expression service", null)); // $NON-NLS-1$
rm.done();
return;
}
IExpressionDMContext expressionDMC = expressions.createExpression(frame, expression);
FormattedValueDMContext formattedValueContext =
expressions.getFormattedValueContext(expressionDMC, getHoverFormat());
expressions.getFormattedExpressionValue(
formattedValueContext,
new DataRequestMonitor<FormattedValueDMData>(session.getExecutor(), rm) {
@Override
protected void handleSuccess() {
rm.setData(getData());
rm.done();
}
@Override
protected void handleFailure() {
rm.done();
}
});
}
public IRegisterDMData readRegister(Object element) {
/*
* Get the DMC and the session. If element is not an register DMC, or
* session is stale, then bail out.
*/
IRegisterDMContext dmc = getRegisterDMC(element);
if (dmc == null) return null;
DsfSession session = DsfSession.getSession(dmc.getSessionId());
if (session == null) return null;
/*
* Create the query to request the value from service. Note: no need to
* guard agains RejectedExecutionException, because
* DsfSession.getSession() above would only return an active session.
*/
GetRegisterValueQuery query = new GetRegisterValueQuery(dmc);
session.getExecutor().execute(query);
/*
* Now we have the data, go and get it. Since the call is completed now
* the ".get()" will not suspend it will immediately return with the
* data.
*/
try {
return query.get();
} catch (InterruptedException e) {
assert false;
return null;
} catch (ExecutionException e) {
return null;
}
}
@Override
protected String evaluateExpression(String expression) {
IFrameDMContext frame = getFrame();
if (frame == null) {
return null;
}
String sessionId = frame.getSessionId();
DsfServicesTracker dsfServicesTracker =
new DsfServicesTracker(DsfUIPlugin.getBundleContext(), sessionId);
try {
GetExpressionValueQuery query =
new GetExpressionValueQuery(frame, expression, dsfServicesTracker);
DsfSession session = DsfSession.getSession(sessionId);
if (session != null) {
session.getExecutor().execute(query);
try {
FormattedValueDMData data = query.get();
if (data != null) return data.getFormattedValue();
} catch (Exception e) {
}
}
} finally {
dsfServicesTracker.dispose();
}
return null;
}
@Override
public boolean canMoveToLine(final String fileName, final int lineNumber) {
DsfSession session = DsfSession.getSession(fContext.getSessionId());
if (session != null && session.isActive()) {
try {
Query<Boolean> query =
new Query<Boolean>() {
@Override
protected void execute(DataRequestMonitor<Boolean> rm) {
DsfServicesTracker tracker =
new DsfServicesTracker(DsfUIPlugin.getBundleContext(), fContext.getSessionId());
IRunControl2 runControl = tracker.getService(IRunControl2.class);
if (runControl != null) {
runControl.canMoveToLine(fContext, fileName, lineNumber, false, rm);
} else {
rm.setData(false);
rm.done();
}
tracker.dispose();
}
};
session.getExecutor().execute(query);
return query.get();
} catch (RejectedExecutionException e) {
} catch (InterruptedException e) {
} catch (ExecutionException e) {
}
}
return false;
}
@Override
public void moveToLine(final String fileName, final int lineNumber) throws DebugException {
DsfSession session = DsfSession.getSession(fContext.getSessionId());
if (session != null && session.isActive()) {
Throwable exception = null;
try {
Query<Object> query =
new Query<Object>() {
@Override
protected void execute(final DataRequestMonitor<Object> rm) {
DsfServicesTracker tracker =
new DsfServicesTracker(DsfUIPlugin.getBundleContext(), fContext.getSessionId());
IRunControl2 runControl = tracker.getService(IRunControl2.class);
if (runControl != null) {
runControl.moveToLine(fContext, fileName, lineNumber, false, rm);
} else {
rm.setStatus(
new Status(
IStatus.ERROR,
DsfUIPlugin.PLUGIN_ID,
IDsfStatusConstants.NOT_SUPPORTED,
"IRunControl2 service not available",
null)); //$NON-NLS-1$
rm.done();
}
tracker.dispose();
}
};
session.getExecutor().execute(query);
query.get();
} catch (RejectedExecutionException e) {
exception = e;
} catch (InterruptedException e) {
exception = e;
} catch (ExecutionException e) {
exception = e;
}
if (exception != null) {
throw new DebugException(
new Status(
IStatus.ERROR,
DsfUIPlugin.PLUGIN_ID,
DebugException.REQUEST_FAILED,
"Failed executing move to line",
exception)); //$NON-NLS-1$
}
} else {
throw new DebugException(
new Status(
IStatus.ERROR,
DsfUIPlugin.PLUGIN_ID,
DebugException.REQUEST_FAILED,
"Debug session is not active",
null)); //$NON-NLS-1$
}
}
/*
* @see org.eclipse.jface.text.ITextHoverExtension2#getHoverInfo2(org.eclipse.jface.text.ITextViewer, org.eclipse.jface.text.IRegion)
*/
public Object getHoverInfo2(ITextViewer textViewer, IRegion hoverRegion) {
final String simpleInfo = getHoverInfo(textViewer, hoverRegion);
if (!useExpressionExplorer() || simpleInfo == null) {
return simpleInfo;
}
// improved version using ExpressionInformationControlCreator
// see also getHoverControlCreator()
final String text;
text = getExpressionText(textViewer, hoverRegion);
if (text != null && text.length() > 0) {
final IFrameDMContext frameDmc = getFrame();
if (frameDmc != null) {
final DsfSession dsfSession = DsfSession.getSession(frameDmc.getSessionId());
if (dsfSession != null) {
Callable<IExpressionDMContext> callable =
new Callable<IExpressionDMContext>() {
public IExpressionDMContext call() throws Exception {
DsfServicesTracker tracker =
new DsfServicesTracker(
DsfUIPlugin.getBundleContext(), frameDmc.getSessionId());
try {
IExpressions expressions = tracker.getService(IExpressions.class);
if (expressions != null) {
return expressions.createExpression(frameDmc, text);
}
return null;
} finally {
tracker.dispose();
}
}
};
try {
return dsfSession.getExecutor().submit(callable).get();
} catch (InterruptedException e) {
} catch (ExecutionException e) {
}
}
}
}
return null;
}
public String getFormattedBitFieldValue(Object element, String formatId) {
/*
* Get the DMC and the session. If element is not an register DMC, or
* session is stale, then bail out.
*/
IFormattedDataDMContext dmc = null;
if (element instanceof IDMVMContext) {
IDMContext vmcdmc = ((IDMVMContext) element).getDMContext();
IBitFieldDMContext bitfielddmc =
DMContexts.getAncestorOfType(vmcdmc, IBitFieldDMContext.class);
dmc = DMContexts.getAncestorOfType(bitfielddmc, IFormattedDataDMContext.class);
}
if (dmc == null) return null;
DsfSession session = DsfSession.getSession(dmc.getSessionId());
if (session == null) return null;
/*
* Create the query to write the value to the service. Note: no need to
* guard agains RejectedExecutionException, because
* DsfSession.getSession() above would only return an active session.
*/
GetFormattedValueValueQuery query = new GetFormattedValueValueQuery(dmc, formatId);
session.getExecutor().execute(query);
/*
* Now we have the data, go and get it. Since the call is completed now
* the ".get()" will not suspend it will immediately return with the
* data.
*/
try {
return query.get();
} catch (InterruptedException e) {
assert false;
return null;
} catch (ExecutionException e) {
return null;
}
}
public void writeBitField(Object element, String value, String formatId) {
/*
* Get the DMC and the session. If element is not an register DMC, or
* session is stale, then bail out.
*/
IBitFieldDMContext dmc = getBitFieldDMC(element);
if (dmc == null) return;
DsfSession session = DsfSession.getSession(dmc.getSessionId());
if (session == null) return;
/*
* Create the query to write the value to the service. Note: no need to
* guard agains RejectedExecutionException, because
* DsfSession.getSession() above would only return an active session.
*/
SetBitFieldValueQuery query = new SetBitFieldValueQuery(dmc, value, formatId);
session.getExecutor().execute(query);
/*
* Now we have the data, go and get it. Since the call is completed now
* the ".get()" will not suspend it will immediately return with the
* data.
*/
try {
/*
* Return value is irrelevant, any error would come through with an
* exception.
*/
query.get();
} catch (InterruptedException e) {
assert false;
} catch (ExecutionException e) {
assert false;
/*
* View must be shutting down, no need to show erro dialog.
*/
}
}
@Override
protected void execute(final DataRequestMonitor<V> rm) {
/*
* We're in another dispatch, so we must guard against executor
* shutdown again.
*/
final DsfSession session = DsfSession.getSession(fDmc.getSessionId());
if (session == null) {
rm.setStatus(
new Status(
IStatus.ERROR,
DsfUIPlugin.PLUGIN_ID,
IDsfStatusConstants.INVALID_STATE,
"Debug session already shut down.",
null)); //$NON-NLS-1$
rm.done();
return;
}
/*
* Guard against a disposed service
*/
IRegisters service = getService();
if (service == null) {
rm.setStatus(
new Status(
IStatus.ERROR,
DsfUIPlugin.PLUGIN_ID,
IDsfStatusConstants.INVALID_STATE,
"Service unavailable",
null)); //$NON-NLS-1$
rm.done();
return;
}
doExecute(service, rm);
}
public IBitFieldDMData getBitFieldDMData(Object element) {
IBitFieldDMContext dmc = null;
if (element instanceof IDMVMContext) {
dmc =
DMContexts.getAncestorOfType(
((IDMVMContext) element).getDMContext(), IBitFieldDMContext.class);
}
if (dmc != null) {
DsfSession session = DsfSession.getSession(dmc.getSessionId());
if (session != null) {
GetBitFieldQuery query = new GetBitFieldQuery(dmc);
session.getExecutor().execute(query);
try {
return query.get();
} catch (InterruptedException e) {
} catch (ExecutionException e) {
}
}
}
return null;
}
