public LoadNode createLoadNode(StreamSink sinkInfo, Map<String, StreamField> constantFieldMap) {
        if (sinkInfo == null) {
            return null;
        }
        String sinkType = sinkInfo.getSinkType();
        return loadNodeProviderFactory.getLoadNodeProvider(sinkType).createLoadNode(sinkInfo, constantFieldMap);
    }
Create load node from the given sink.
inlong-manager/manager-pojo/src/main/java/org/apache/inlong/manager/pojo/sort/node/NodeFactory.java