Esempio n. 1
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      private PrestoContextRules getValueTopicContextRules(PrestoTopic valueTopic) {
        PrestoContext context = rules.getContext();

        PrestoContext subcontext = PrestoContext.createSubContext(context, field, valueTopic);
        PrestoContextRules subrules = presto.getPrestoContextRules(subcontext);
        return subrules;
      }
Esempio n. 2
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      private Object getValue(PrestoTopic valueTopic) {
        PrestoContextRules subrules = getValueTopicContextRules(valueTopic);

        FieldValues fieldValues = presto.getFieldValues(subrules, valueField);

        List<? extends Object> values = fieldValues.getValues();
        return values.isEmpty() ? null : values.get(0);
      }
Esempio n. 3
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    private ValueFieldConfig getValueFieldConfig(PrestoTopic valueTopic, String valueFieldId) {
      String valueTypeId = valueTopic.getTypeId();

      ValueFieldConfig valueFieldConfig = valueFieldConfigCache.get(valueTypeId);
      if (valueFieldConfig == null) {

        PrestoDataProvider dataProvider = presto.getDataProvider();
        PrestoSchemaProvider schemaProvider = presto.getSchemaProvider();
        PrestoType valueType = schemaProvider.getTypeById(valueTypeId);
        PrestoField valueField = valueType.getFieldById(valueFieldId);

        Comparator<Object> valueComparator = null;
        ObjectNode extra = ExtraUtils.getFieldExtraNode(valueField);
        if (extra != null) {
          JsonNode handlerNode = extra.path("valueComparator");
          if (handlerNode.isObject()) {
            FieldValueComparator handler =
                AbstractHandler.getHandler(
                    dataProvider,
                    schemaProvider,
                    FieldValueComparator.class,
                    (ObjectNode) handlerNode);
            if (handler != null) {
              handler.setPresto(presto);
            }
            valueComparator = handler;
          }
        }
        if (valueComparator == null) {
          valueComparator = new FieldComparator(valueField, false);
        }
        valueFieldConfig = new ValueFieldConfig(presto, rules, field, valueField, valueComparator);
        valueFieldConfigCache.put(valueTypeId, valueFieldConfig);
      }
      return valueFieldConfig;
    }