public void write()

in src/main/java/com/microsoft/spring/data/gremlin/conversion/source/GremlinSourceEdgeWriter.java [43:83]
36 lines of code
11 McCabe index (conditional complexity)

    public void write(@NonNull Object domain, @NonNull MappingGremlinConverter converter,
                      @NonNull GremlinSource source) throws GremlinInvalidEntityIdFieldException {
        if (!(source instanceof GremlinSourceEdge)) {
            throw new GremlinUnexpectedSourceTypeException("should be the instance of GremlinSourceEdge");
        }

        source.setId(converter.getIdFieldValue(domain));

        final GremlinSourceEdge sourceEdge = (GremlinSourceEdge) source;
        final GremlinPersistentEntity<?> persistentEntity = converter.getPersistentEntity(domain.getClass());
        final ConvertingPropertyAccessor accessor = converter.getPropertyAccessor(domain);

        for (final Field field : FieldUtils.getAllFields(domain.getClass())) {
            final PersistentProperty property = persistentEntity.getPersistentProperty(field.getName());
            if (property == null) {
                continue;
            }

            final Object object = accessor.getProperty(property);

            if (field.getName().equals(Constants.PROPERTY_ID) || field.getAnnotation(Id.class) != null) {
                continue;
            } else if (field.getName().equals(GREMLIN_PROPERTY_CLASSNAME)) {
                throw new GremlinEntityInformationException("Domain Cannot use pre-defined field name: "
                        + GREMLIN_PROPERTY_CLASSNAME);
            } else if (field.getAnnotation(EdgeFrom.class) != null) {
                final Object vertexId = this.getIdValue(object, converter);
                if (vertexId == null) {
                    throw new GremlinInvalidEntityIdFieldException("The vertex id for the from vertex cannot be null!");
                }
                sourceEdge.setVertexIdFrom(vertexId);
            } else if (field.getAnnotation(EdgeTo.class) != null) {
                final Object vertexId = this.getIdValue(object, converter);
                if (vertexId == null) {
                    throw new GremlinInvalidEntityIdFieldException("The vertex id for the to vertex cannot be null!");
                }
                sourceEdge.setVertexIdTo(vertexId);
            }
            source.setProperty(field.getName(), accessor.getProperty(property));
        }
    }