@Override
public IJObject access(IVisitablePointable pointable, IObjectPool<IJObject, IAType> objectPool)
throws HyracksDataException {
IJObject jObject = objectPool.allocate(BuiltinType.ASTRING);
try {
byte byteArray[] = pointable.getByteArray();
int len = pointable.getLength() - 3;
int off = pointable.getStartOffset() + 3;
baaos.reset();
if (off >= 0 && off <= byteArray.length && len >= 0 && off + len - byteArray.length <= 0) {
baaos.write(byteArray, off, len);
((JString) jObject).setValue(JObjectUtil.getNormalizedString(baaos.toString("UTF-8")));
} else {
((JString) jObject).setValue("");
}
} catch (IOException e) {
e.printStackTrace();
}
return jObject;
}
@Override
public void evaluate(IFunctionHelper functionHelper) throws Exception {
list.clear();
JRecord inputRecord = (JRecord) functionHelper.getArgument(0);
JString id = (JString) inputRecord.getValueByName("id");
JString text = (JString) inputRecord.getValueByName("text");
String[] tokens = text.getValue().split(" ");
for (String tk : tokens) {
if (tk.startsWith("#")) {
JString newField = (JString) functionHelper.getObject(JTypeTag.STRING);
newField.setValue(tk);
list.add(newField);
}
}
JRecord result = (JRecord) functionHelper.getResultObject();
result.setField("id", id);
result.setField("username", inputRecord.getValueByName("username"));
result.setField("location", inputRecord.getValueByName("location"));
result.setField("text", text);
result.setField("timestamp", inputRecord.getValueByName("timestamp"));
result.setField("topics", list);
functionHelper.setResult(result);
}