dcaedt_be/src/main/java/org/onap/sdc/dcae/rule/editor/translators/ConditionGroupTranslator.java

   1 package org.onap.sdc.dcae.rule.editor.translators;
   2
   3 import org.onap.sdc.dcae.composition.restmodels.ruleeditor.*;
   4 import org.onap.sdc.dcae.rule.editor.enums.ConditionTypeEnum;
   5 import org.onap.sdc.dcae.rule.editor.enums.OperatorTypeEnum;
   6 import org.onap.sdc.dcae.rule.editor.utils.ValidationUtils;
   7
   8 import java.util.List;
   9 import java.util.Map;
  10 import java.util.stream.Collectors;
  11
  12 public class ConditionGroupTranslator implements IRuleElementTranslator<ConditionGroup> {
  13
  14         private static ConditionGroupTranslator conditionGroupTranslator = new ConditionGroupTranslator();
  15
  16         public static ConditionGroupTranslator getInstance() {
  17                 return conditionGroupTranslator;
  18         }
  19
  20         private ConditionGroupTranslator(){}
  21
  22         public Translation translateToHpJson(ConditionGroup conditionGroup) {
  23                 String clazz = ConditionTypeEnum.getTypeByName(conditionGroup.getType()).getFilterClass();
  24                 FiltersTranslation translation = new FiltersTranslation(clazz, conditionGroup.getChildren().stream()
  25                                 .map(this::getTranslation)
  26                                 .collect(Collectors.toList()));
  27                 flattenNestedFilters(translation, clazz);
  28                 return translation;
  29         }
  30
  31
  32         private IRuleElementTranslator getConditionTranslator(BaseCondition condition){
  33                 return condition instanceof ConditionGroup ? ConditionGroupTranslator.getInstance() :
  34                                 ValidationUtils.validateNotEmpty(OperatorTypeEnum.getTypeByName(((Condition)condition).getOperator()).getModifiedType()) ? FieldConditionTranslator.getInstance() : ConditionTranslator.getInstance();
  35         }
  36
  37         private Translation getTranslation(BaseCondition condition) {
  38                 return getConditionTranslator(condition).translateToHpJson(condition);
  39         }
  40
  41         private void flattenNestedFilters(FiltersTranslation filtersTranslation, String clazz) {
  42                 Map<Boolean, List<Translation>> partitioned = filtersTranslation.filters.stream().collect(Collectors.partitioningBy(f -> clazz.equals(((ProcessorTranslation) f).clazz)));
  43                 filtersTranslation.filters.removeAll(partitioned.get(Boolean.TRUE));
  44                 filtersTranslation.filters.addAll(partitioned.get(Boolean.TRUE).stream().map(f -> ((FiltersTranslation) f).filters).flatMap(List::stream).collect(Collectors.toList()));
  45         }
  46
  47 }