public T read()

in src/main/java/com/microsoft/spring/data/gremlin/conversion/source/GremlinSourceEdgeReader.java [30:62]
24 lines of code
8 McCabe index (conditional complexity)

    public <T extends Object> T read(@NonNull Class<T> domainClass, @NonNull MappingGremlinConverter converter,
                                     @NonNull GremlinSource<T> source) {
        if (!(source instanceof GremlinSourceEdge)) {
            throw new GremlinUnexpectedSourceTypeException("should be instance of GremlinSourceEdge");
        }

        final T domain = GremlinUtils.createInstance(domainClass);
        final ConvertingPropertyAccessor accessor = converter.getPropertyAccessor(domain);
        final GremlinPersistentEntity persistentEntity = converter.getPersistentEntity(domainClass);

        for (final Field field : FieldUtils.getAllFields(domainClass)) {
            final PersistentProperty property = persistentEntity.getPersistentProperty(field.getName());
            if (property == null) {
                continue;
            }
            if (field.getName().equals(PROPERTY_ID) || field.getAnnotation(Id.class) != null) {
                accessor.setProperty(property, super.getGremlinSourceId(source));
                continue;
            } else if (field.getAnnotation(EdgeFrom.class) != null || field.getAnnotation(EdgeTo.class) != null) {
                // We cannot do that here as the gremlin will not tell more information about vertex except Id. After
                // the query of Edge end, we can get the Id of vertex from/to. And then we will do extra 2 query to
                // obtain the 2 vertex and complete the edge.
                //
                // That work will be wrapped in GremlinTemplate insert, and skip the property here.
                continue;
            }

            final Object value = super.readProperty(property, source.getProperties().get(field.getName()));
            accessor.setProperty(property, value);
        }

        return domain;
    }