public void reset() throws HyracksDataException {
try {
jRecord.reset();
} catch (AlgebricksException e) {
throw new HyracksDataException(e);
}
openFields.clear();
}
@Override
public JRecord access(
ARecordVisitablePointable pointable,
IObjectPool<IJObject, IAType> objectPool,
ARecordType recordType,
JObjectPointableVisitor pointableVisitor)
throws HyracksDataException {
try {
jRecord.reset();
} catch (AlgebricksException e) {
throw new HyracksDataException(e);
}
ARecordVisitablePointable recordPointable = (ARecordVisitablePointable) pointable;
List<IVisitablePointable> fieldPointables = recordPointable.getFieldValues();
List<IVisitablePointable> fieldTypeTags = recordPointable.getFieldTypeTags();
List<IVisitablePointable> fieldNames = recordPointable.getFieldNames();
int index = 0;
boolean closedPart = true;
try {
IJObject fieldObject = null;
for (IVisitablePointable fieldPointable : fieldPointables) {
closedPart = index < recordType.getFieldTypes().length;
IVisitablePointable tt = fieldTypeTags.get(index);
IAType fieldType = closedPart ? recordType.getFieldTypes()[index] : null;
ATypeTag typeTag =
EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(
tt.getByteArray()[tt.getStartOffset()]);
IVisitablePointable fieldName = fieldNames.get(index);
typeInfo.reset(fieldType, typeTag);
switch (typeTag) {
case RECORD:
fieldObject =
pointableVisitor.visit((ARecordVisitablePointable) fieldPointable, typeInfo);
break;
case ORDEREDLIST:
case UNORDEREDLIST:
if (fieldPointable instanceof AFlatValuePointable) {
// value is null
fieldObject = null;
} else {
fieldObject =
pointableVisitor.visit((AListVisitablePointable) fieldPointable, typeInfo);
}
break;
case ANY:
break;
default:
fieldObject = pointableVisitor.visit((AFlatValuePointable) fieldPointable, typeInfo);
}
if (closedPart) {
jObjects[index] = fieldObject;
} else {
byte[] b = fieldName.getByteArray();
int s = fieldName.getStartOffset();
int l = fieldName.getLength();
String v =
AStringSerializerDeserializer.INSTANCE
.deserialize(new DataInputStream(new ByteArrayInputStream(b, s + 1, l - 1)))
.getStringValue();
openFields.put(v, fieldObject);
}
index++;
fieldObject = null;
}
} catch (Exception e) {
e.printStackTrace();
throw new HyracksDataException(e);
}
return jRecord;
}
@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);
}