protected void writeEntity()

in lib/server-core/src/main/java/org/apache/olingo/server/core/serializer/json/ODataJsonSerializer.java [381:449]
67 lines of code
26 McCabe index (conditional complexity)

  protected void writeEntity(final ServiceMetadata metadata, final EdmEntityType entityType, final Entity entity,
      final ContextURL contextURL, final ExpandOption expand, Integer toDepth, 
      final SelectOption select, final boolean onlyReference, Set<String> ancestors, 
      String name, final JsonGenerator json)
      throws IOException, SerializerException, DecoderException {
    boolean cycle = false;
    if (expand != null) {
      if (ancestors == null) {
        ancestors = new HashSet<>();
      }
      cycle = !ancestors.add(getEntityId(entity, entityType, name));
    }
    try {
      json.writeStartObject();
      if (!isODataMetadataNone) {
        // top-level entity
        if (contextURL != null) {
          writeContextURL(contextURL, json);
          writeMetadataETag(metadata, json);
        }
        if (entity.getETag() != null) {
          json.writeStringField(constants.getEtag(), entity.getETag());
        }
        if (entityType.hasStream()) {
          if (entity.getMediaETag() != null) {
            json.writeStringField(constants.getMediaEtag(), entity.getMediaETag());
          }
          if (entity.getMediaContentType() != null) {
            json.writeStringField(constants.getMediaContentType(), entity.getMediaContentType());
          }
          if (entity.getMediaContentSource() != null) {
            json.writeStringField(constants.getMediaReadLink(), entity.getMediaContentSource().toString());
          }
          if (entity.getMediaEditLinks() != null && !entity.getMediaEditLinks().isEmpty()) {
            json.writeStringField(constants.getMediaEditLink(), entity.getMediaEditLinks().get(0).getHref());
          }
        }
      }
      if (cycle || onlyReference) {
        json.writeStringField(constants.getId(), getEntityId(entity, entityType, name));
      } else {
        final EdmEntityType resolvedType = resolveEntityType(metadata, entityType, entity.getType());
        if ((!isODataMetadataNone && !resolvedType.equals(entityType)) || isODataMetadataFull) {
          json.writeStringField(constants.getType(), "#" + entity.getType());
        }
        if ((!isODataMetadataNone && !areKeyPredicateNamesSelected(select, resolvedType)) || isODataMetadataFull) {
          json.writeStringField(constants.getId(), getEntityId(entity, resolvedType, name));
        }
        
        if (isODataMetadataFull) {
          if (entity.getSelfLink() != null) {
            json.writeStringField(constants.getReadLink(), entity.getSelfLink().getHref());
          }
          if (entity.getEditLink() != null) {
            json.writeStringField(constants.getEditLink(), entity.getEditLink().getHref());
          }
        }
        instanceAnnotSerializer.writeInstanceAnnotationsOnEntity(entity.getAnnotations(), json);        
        writeProperties(metadata, resolvedType, entity.getProperties(), select, json, entity, expand);
        writeNavigationProperties(metadata, resolvedType, entity, expand, toDepth, ancestors, name, json);
        writeOperations(entity.getOperations(), json);      
      }
      json.writeEndObject();
    } finally {
      if (expand != null && !cycle && ancestors != null) {
        ancestors.remove(getEntityId(entity, entityType, name));
      }
    }
  }