protected static void appendPropertyValue()

in odata2-lib/odata-core/src/main/java/org/apache/olingo/odata2/core/ep/producer/JsonPropertyEntityProducer.java [70:134]
62 lines of code
22 McCabe index (conditional complexity)

  protected static void appendPropertyValue(final JsonStreamWriter jsonStreamWriter,
                                            final EntityPropertyInfo propertyInfo, final Object value,
                                            boolean validatingFacets,
                                            boolean isDataBasedPropertySerialization) throws IOException, EdmException,
      EntityProviderException {
    if (propertyInfo.isComplex()) {
      if (value == null || value instanceof Map<?, ?>) {
        jsonStreamWriter.beginObject();
        appendPropertyMetadata(jsonStreamWriter, propertyInfo.getType());
        if (value == null && isDataBasedPropertySerialization) {
          jsonStreamWriter.endObject();
          return;
        }
        for (final EntityPropertyInfo childPropertyInfo : ((EntityComplexPropertyInfo) propertyInfo)
            .getPropertyInfos()) {
          final String name = childPropertyInfo.getName();
          if (isDataBasedPropertySerialization && !((Map<?,?>)value).containsKey(name)) {
            continue;
          } 
          jsonStreamWriter.separator();
          jsonStreamWriter.name(name);
          appendPropertyValue(jsonStreamWriter, childPropertyInfo,
              value == null ? null : ((Map<?, ?>) value).get(name), validatingFacets, isDataBasedPropertySerialization);
        }
        jsonStreamWriter.endObject();
      } else {
        throw new EntityProviderProducerException(EntityProviderException.ILLEGAL_ARGUMENT
            .addContent("A complex property must have a Map as data"));
      }
    } else {
      final EdmSimpleType type = (EdmSimpleType) propertyInfo.getType();
      final Object contentValue = value instanceof Map ? ((Map<?, ?>) value).get(propertyInfo.getName()) : value;
      final EdmFacets facets = validatingFacets ? propertyInfo.getFacets(): null;
      String valueAsString = null;
      try {
      valueAsString = type.valueToString(contentValue, EdmLiteralKind.JSON, facets);
      } catch (EdmSimpleTypeException e) {
        throw new EntityProviderProducerException(EdmSimpleTypeException.getMessageReference(
            e.getMessageReference()).updateContent(e.getMessageReference().getContent(), 
                propertyInfo.getName()), e);
      }
      switch (EdmSimpleTypeKind.valueOf(type.getName())) {
      case String:
        jsonStreamWriter.stringValue(valueAsString);
        break;
      case Boolean:
      case Byte:
      case SByte:
      case Int16:
      case Int32:
        jsonStreamWriter.unquotedValue(valueAsString);
        break;
      case DateTime:
      case DateTimeOffset:
        // Although JSON escaping is (and should be) done in the JSON
        // serializer, we backslash-escape the forward slash here explicitly
        // because it is not required to escape it in JSON but in OData.
        jsonStreamWriter.stringValueRaw(valueAsString == null ? null : valueAsString.replace("/", "\\/"));
        break;
      default:
        jsonStreamWriter.stringValueRaw(valueAsString);
        break;
      }
    }
  }