@Override
protected void prepareOperation() throws CoreException, CommonException {
if (inputLoc == null) {
throw LangCore.createCoreException(
"Could not determine filesystem path from editor input", null);
}
}
public static boolean runAndHandle(
IRunnableContext runnableContext,
IRunnableWithProgress op,
boolean isCancellable,
String errorTitle) {
try {
runnableContext.run(true, isCancellable, op);
return true;
} catch (InvocationTargetException e) {
Throwable targetException = e.getTargetException();
if (targetException instanceof OperationCanceledException) {
return false;
}
CoreException ce;
if (targetException instanceof CoreException) {
ce = (CoreException) e.getTargetException();
} else {
ce = LangCore.createCoreException("Internal error: ", targetException);
}
UIOperationExceptionHandler.handleOperationStatus(errorTitle, ce);
return false;
} catch (InterruptedException e) {
return false;
}
}
public ExternalProcessResult runEngineTool(
ProcessBuilder pb, String clientInput, ICancelMonitor cm)
throws CoreException, OperationCancellation {
try {
return new RunEngineClientOperation(pb, cm).runProcess(clientInput);
} catch (CommonException ce) {
throw LangCore.createCoreException(ce);
}
}
@Override
protected Indexable<ICompletionProposal> computeProposals(
SourceOperationContext context, int offset, TimeoutProgressMonitor pm)
throws CoreException, CommonException, OperationCancellation, OperationSoftFailure {
IEditorPart editor = context.getEditor_nonNull();
Location fileLoc = context.getEditorInputLocation();
IDocument document = context.getDocument();
String prefix = lastWord(document, offset);
GoUIPlugin.prepareGocodeManager_inUI();
IPath gocodePath = GocodeServerManager.getGocodePath();
if (gocodePath == null) {
throw LangCore.createCoreException("Error: gocode path not provided.", null);
}
IProject project = getProjectFor(editor);
GoEnvironment goEnvironment = GoProjectEnvironment.getGoEnvironment(project);
// TODO: we should run this operation outside the UI thread.
GocodeCompletionOperation client =
new GocodeCompletionOperation(
getEngineToolRunner(pm), goEnvironment, gocodePath.toOSString());
ExternalProcessResult processResult =
client.execute(fileLoc.toPathString(), document.get(), offset);
String stdout = processResult.getStdOutBytes().toString(StringUtil.UTF8);
List<String> completions =
new ArrayList2<>(GocodeCompletionOperation.LINE_SPLITTER.split(stdout));
ArrayList2<ICompletionProposal> results = new ArrayList2<>();
for (String completionEntry : completions) {
handleResult(offset, /*codeContext,*/ results, prefix, completionEntry);
}
return results;
}