public static T createStringList()

in uimafit-core/src/main/java/org/apache/uima/fit/util/FSCollectionFactory.java [811:844]

• 28 lines of code
• 5 McCabe index (conditional complexity)

  public static <T extends FeatureStructure> T createStringList(CAS aCas,
          Collection<String> aValues) {
    if (aValues == null) {
      return null;
    }

    TypeSystem ts = aCas.getTypeSystem();

    Type emptyType = ts.getType(CAS.TYPE_NAME_EMPTY_STRING_LIST);

    if (aValues.size() == 0) {
      return aCas.createFS(emptyType);
    }

    Type nonEmptyType = ts.getType(CAS.TYPE_NAME_NON_EMPTY_STRING_LIST);
    Feature headFeature = nonEmptyType.getFeatureByBaseName(CAS.FEATURE_BASE_NAME_HEAD);
    Feature tailFeature = nonEmptyType.getFeatureByBaseName(CAS.FEATURE_BASE_NAME_TAIL);

    FeatureStructure head = aCas.createFS(nonEmptyType);
    FeatureStructure list = head;
    Iterator<String> i = aValues.iterator();
    while (i.hasNext()) {
      head.setStringValue(headFeature, i.next());
      if (i.hasNext()) {
        FeatureStructure tail = aCas.createFS(nonEmptyType);
        head.setFeatureValue(tailFeature, tail);
        head = tail;
      } else {
        head.setFeatureValue(tailFeature, aCas.createFS(emptyType));
      }
    }

    return (T) list;
  }