protected StringBuilder appendArrayItems()

in streams-plugins/streams-plugin-elasticsearch/src/main/java/org/apache/streams/plugins/elasticsearch/StreamsElasticsearchResourceGenerator.java [211:265]
52 lines of code
18 McCabe index (conditional complexity)

  protected StringBuilder appendArrayItems(StringBuilder builder, Schema schema, String fieldId, ObjectNode itemsNode, Character seperator) {
    // not safe to append nothing
    Objects.requireNonNull(builder);
    if ( itemsNode == null ) {
      return builder;
    }
    if ( itemsNode.has("type")) {
      try {
        FieldType itemType = FieldUtil.determineFieldType(itemsNode);
        switch ( itemType ) {
          case OBJECT:
            Schema objectSchema = null;
            URI parentUri = null;
            if ( itemsNode.has("$ref") || itemsNode.has("extends") ) {
              JsonNode refNode = itemsNode.get("$ref");
              JsonNode extendsNode = itemsNode.get("extends");
              if (refNode != null && refNode.isValueNode()) {
                parentUri = URI.create(refNode.asText());
              } else if (extendsNode != null && extendsNode.isObject()) {
                parentUri = URI.create(extendsNode.get("$ref").asText());
              }
              URI absoluteUri;
              if (parentUri.isAbsolute()) {
                absoluteUri = parentUri;
              } else {
                absoluteUri = schema.getUri().resolve(parentUri);
                if (!absoluteUri.isAbsolute() || (absoluteUri.isAbsolute() && !schemaStore.getByUri(absoluteUri).isPresent() )) {
                  absoluteUri = schema.getParentUri().resolve(parentUri);
                }
              }
              if (absoluteUri.isAbsolute()) {
                Optional<Schema> schemaLookup = schemaStore.getByUri(absoluteUri);
                if (schemaLookup.isPresent()) {
                  objectSchema = schemaLookup.get();
                }
              }
            }
            // have to resolve schema here

            builder = appendArrayObject(builder, objectSchema, fieldId, seperator);
            break;
          case ARRAY:
            ObjectNode subArrayItems = (ObjectNode) itemsNode.get("items");
            builder = appendArrayItems(builder, schema, fieldId, subArrayItems, seperator);
            break;
          default:
            builder = appendArrayField(builder, schema, fieldId, itemType, seperator);
        }
      } catch (Exception ex) {
        LOGGER.warn("No item type resolvable for {}", fieldId);
      }
    }
    Objects.requireNonNull(builder);
    return builder;
  }