private static ColumnData findColumnValue(StreamData tupleData, String name) {
for (ColumnData val : tupleData.getColumnList()) {
if (val.getName().equals(name)) {
return val;
}
}
return null;
}
private WebSocketReplyData processPublishRequest(
WebSocketDecodeContext ctx, WebSocketDecoder decoder) throws WebSocketException {
YarchDatabase ydb = YarchDatabase.getInstance(processor.getInstance());
StreamData req = decoder.decodeMessageData(ctx, SchemaArchive.StreamData.MERGE).build();
Stream stream = ydb.getStream(req.getStream());
if (stream == null) {
throw new WebSocketException(
ctx.getRequestId(), "Cannot find stream '" + req.getStream() + "'");
}
TupleDefinition tdef = stream.getDefinition();
List<Object> tupleColumns = new ArrayList<>();
// 'fixed' colums
for (ColumnDefinition cdef : stream.getDefinition().getColumnDefinitions()) {
ColumnData providedField = findColumnValue(req, cdef.getName());
if (providedField == null) continue;
if (!providedField.hasValue()) {
throw new WebSocketException(
ctx.getRequestId(), "No value was provided for column " + cdef.getName());
}
Object column =
makeTupleColumn(ctx, cdef.getName(), providedField.getValue(), cdef.getType());
tupleColumns.add(column);
}
// 'dynamic' columns
for (ColumnData val : req.getColumnList()) {
if (stream.getDefinition().getColumn(val.getName()) == null) {
DataType type = dataTypeFromValue(val.getValue());
tdef.addColumn(val.getName(), type);
Object column = makeTupleColumn(ctx, val.getName(), val.getValue(), type);
tupleColumns.add(column);
}
}
Tuple t = new Tuple(tdef, tupleColumns);
log.info("Emitting tuple {} to {}", t, stream.getName());
stream.emitTuple(t);
return toAckReply(ctx.getRequestId());
}