@Override
public void endStream() throws Exception {
if (_metaTuple != null) {
componentContext.pushDataComponentToOutput(OUT_META_TUPLE, _metaTuple);
componentContext.pushDataComponentToOutput(OUT_TUPLES, _tuples.build());
} else console.warning("Nothing to push - the stream did not contain any tuples");
_tuples = null;
}
@Override
public void executeCallBack(ComponentContext cc) throws Exception {
if (_tuples == null) throw new ComponentExecutionException("Start stream marker not received!");
Strings inputMeta = (Strings) cc.getDataComponentFromInput(IN_META_TUPLE);
Object input = cc.getDataComponentFromInput(IN_TUPLES);
Strings[] tuples;
if (input instanceof StringsArray)
tuples = BasicDataTypesTools.stringsArrayToJavaArray((StringsArray) input);
else if (input instanceof Strings) tuples = new Strings[] {(Strings) input};
else
throw new ComponentExecutionException(
"Don't know how to handle input of type: " + input.getClass().getName());
if (_metaTuple != null && !equalMeta(_metaTuple, inputMeta))
throw new ComponentExecutionException("Tuple metadata mismatch!");
_metaTuple = inputMeta;
for (Strings tuple : tuples) _tuples.addValue(tuple);
}
