Validate method

void Validate()

Validates this time zone definition.

Implementation

void Validate() {
  // The definition must have at least one period, one transition group and one transition,
  // and there must be as many transitions as there are transition groups.
  if (this._periods.length < 1 ||
      this._transitions.length < 1 ||
      this._transitionGroups.length < 1 ||
      this._transitionGroups.length != this._transitions.length) {
    throw new ServiceLocalException(
        "Strings.InvalidOrUnsupportedTimeZoneDefinition");
  }

  // The first transition must be of type TimeZoneTransition.
  if (this._transitions[0].runtimeType != TimeZoneTransition) {
    throw new ServiceLocalException(
        "Strings.InvalidOrUnsupportedTimeZoneDefinition");
  }

  // All transitions must be to transition groups and be either TimeZoneTransition or
  // AbsoluteDateTransition instances.
  for (TimeZoneTransition transition in this._transitions) {
    Type transitionType = transition.runtimeType;

    if (transitionType != TimeZoneTransition &&
        transitionType != AbsoluteDateTransition) {
      throw new ServiceLocalException(
          "Strings.InvalidOrUnsupportedTimeZoneDefinition");
    }

    if (transition.TargetGroup == null) {
      throw new ServiceLocalException(
          "Strings.InvalidOrUnsupportedTimeZoneDefinition");
    }
  }

  // All transition groups must be valid.
  for (TimeZoneTransitionGroup transitionGroup
      in this._transitionGroups.values) {
    transitionGroup.Validate();
  }
}