/** Try and stop the current kdb query. */
public void cancelExecution() {
try {
kdbClient.interruptQuery();
} catch (Exception e) {
logger.log(Level.WARNING, "Interrupt failed", e);
}
}
/** Pass a string to kdb for evaluation. */
public void evaluate(SimpleEvaluationObject obj, String code) {
try {
kdbProcess.getErrorHandler().reset(obj);
kdbProcess.getOutputHandler().reset(obj);
Object result = kdbClient.execute(code);
obj.finished(convert(result));
} catch (Exception e) {
obj.error(e);
}
kdbProcess.getErrorHandler().reset(null);
kdbProcess.getOutputHandler().reset(null);
}
/** So long, farewell. */
public void exit() {
try {
kdbClient.close();
} catch (IOException e) {
//
}
kdbProcess.interrupt();
try {
kdbProcess.join(5000);
} catch (InterruptedException e) {
//
}
}
/** Autocomplete a kdb expression. */
public List<String> autocomplete(String code, int caretPosition) {
if (code.isEmpty()) return null;
// Go back build the longest name string we can.
int s = caretPosition - 1;
while ((s >= 0) && isQName(code.charAt(s))) {
--s;
}
try {
return Arrays.asList(
(String[]) kdbClient.execute(".bk.ac[\"" + code.substring(s + 1, caretPosition) + "\"]"));
} catch (Exception ex) {
return null;
}
}