public static ParameterizedType getSuperParameterizedType()

in google-http-client/src/main/java/com/google/api/client/util/Types.java [56:90]

29 lines of code
11 McCabe index (conditional complexity)


  public static ParameterizedType getSuperParameterizedType(Type type, Class<?> superClass) {
    if (type instanceof Class<?> || type instanceof ParameterizedType) {
      outer: while (type != null && type != Object.class) {
        Class<?> rawType;
        if (type instanceof Class<?>) {
          // type is a class
          rawType = (Class<?>) type;
        } else {
          // current is a parameterized type
          ParameterizedType parameterizedType = (ParameterizedType) type;
          rawType = getRawClass(parameterizedType);
          // check if found Collection
          if (rawType == superClass) {
            // return the actual collection parameter
            return parameterizedType;
          }
          if (superClass.isInterface()) {
            for (Type interfaceType : rawType.getGenericInterfaces()) {
              // interface type is class or parameterized type
              Class<?> interfaceClass =
                  interfaceType instanceof Class<?> ? (Class<?>) interfaceType : getRawClass(
                      (ParameterizedType) interfaceType);
              if (superClass.isAssignableFrom(interfaceClass)) {
                type = interfaceType;
                continue outer;
              }
            }
          }
        }
        // move on to the super class
        type = rawType.getGenericSuperclass();
      }
    }
    return null;
  }