@SuppressWarnings("unchecked")
public Object execute(ExecutionEvent event) throws ExecutionException {
final MessageConsole b3Console = BeeLangConsoleUtils.getBeeLangConsole();
final PrintStream b3ConsoleOutputStream = BeeLangConsoleUtils.getConsoleOutputStream(b3Console);
try {
b3ConsoleOutputStream.println("Running the main function...");
EvaluationContext ctx = (EvaluationContext) event.getApplicationContext();
List<ContentOutlineNode> nodes = (List<ContentOutlineNode>) ctx.getDefaultVariable();
ContentOutlineNode node = nodes.get(0);
Object result =
node.getEObjectHandle()
.readOnly(
new IUnitOfWork<Object, EObject>() {
// @Override
public Object exec(EObject state) throws Exception {
B3BuildEngine engine =
new B3BuildEngine(new ExecuteHandlerModule(b3ConsoleOutputStream));
try {
engine.defineBeeModel((BeeModel) state);
} catch (Throwable e) {
PrintStream b3ConsoleErrorStream =
BeeLangConsoleUtils.getConsoleErrorStream(b3Console);
try {
e.printStackTrace();
b3ConsoleErrorStream.println(
"Loading failed with error: "
+ e.getClass().getName().toString()
+ " : "
+ e.getMessage());
if (e.getCause() != null) {
b3ConsoleErrorStream.println("Caused by: " + e.getCause().getMessage());
return null;
}
} finally {
b3ConsoleErrorStream.close();
}
}
// get the resolution scope (in case a resolution is to be performed)
//
SharedScope resolutionScope = null;
// If resolving, run a resolution
if (isPerformResolve()) {
resolutionScope =
engine.getInjector().getInstance(B3BuildConstants.KEY_RESOLUTION_SCOPE);
resolutionScope.enter(); // !remember to call exit()
IStatus status = engine.resolveAllUnits();
if (!status.isOK()) {
PrintStream b3ConsoleErrorStream =
BeeLangConsoleUtils.getConsoleErrorStream(b3Console);
try {
// TODO: Better error reporting on failed resolution
b3ConsoleErrorStream.println("Resolution Failed with non OK status :");
b3ConsoleErrorStream.println(status.toString());
} finally {
b3ConsoleErrorStream.close();
// if(resolutionScope != null) // in case the error has to do with
// resolution scope
// resolutionScope.exit();
// resolutionScope = null;
}
}
}
// find a function called main (use the first found) and call it with a
// List<Object> argv
IFunction main = null;
for (IFunction f : ((BeeModel) state).getFunctions()) {
if ("main".equals(f.getName())) {
main = f;
}
}
if (main == null) return null;
final List<Object> argv = new ArrayList<Object>();
argv.add(engine);
try {
engine.callFunction(
// return engine.getContext().callFunction(
"main", new Object[] {argv}, new Type[] {List.class});
} catch (B3BackendException exprException) {
exprException.printStackTrace();
BExpression expr = exprException.getExpression();
int lineNumber = BeeLangUtils.getLineNumber(expr);
PrintStream b3ConsoleErrorStream =
BeeLangConsoleUtils.getConsoleErrorStream(b3Console);
try {
b3ConsoleErrorStream.println(exprException.getMessage());
b3ConsoleErrorStream.println(
" at "
+ BeeLangUtils.closestNamedElement(expr)
+ "("
+ exprException.getLocationString()
+ ":"
+ lineNumber
+ ").");
if (exprException.getCause() != null) {
b3ConsoleErrorStream.println(
"Caused by: "
+ ((exprException.getCause().getMessage() == null)
? exprException.getCause().getClass().getName()
: exprException.getCause().getMessage()));
}
} finally {
b3ConsoleErrorStream.close();
}
} catch (Throwable e) {
// Just print some errors
e.printStackTrace();
PrintStream b3ConsoleErrorStream =
BeeLangConsoleUtils.getConsoleErrorStream(b3Console);
try {
b3ConsoleErrorStream.println(e.getMessage());
} finally {
b3ConsoleErrorStream.close();
}
} finally {
if (resolutionScope != null) resolutionScope.exit();
resolutionScope = null;
}
return null;
}
});
b3ConsoleOutputStream.println("Result = " + (result == null ? "null" : result.toString()));
return null;
} finally {
b3ConsoleOutputStream.close();
}
}
