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// This file contains the definition of the StatsSerializer test utility.
// TODO: some ilk of unit test for this class despite this _being_ part of
// some unit tests.

#ifndef KML_DOM_STATS_SERIALIZER_H__
#define KML_DOM_STATS_SERIALIZER_H__

#include "kml/dom/serializer.h"
#include "kml/dom/kml_ptr.h"

namespace kmlbase {
class Attributes;
}

namespace kmldom {

// This Serializer implementation counts begin and end tags of complex elements
// and a count of all simple elements (fields).
class StatsSerializer : public Serializer {
 public:
  StatsSerializer()
      : begin_count_(0),
        end_count_(0),
        field_count_(0),
        element_count_(0),
        element_group_count_(0),
        content_count_(0) {}
  virtual void BeginById(int type_id, const kmlbase::Attributes& attributes) {
    ++begin_count_;
  }
  virtual void End() {
    ++end_count_;
  }
  virtual void SaveStringFieldById(int type_id, string value) {
    ++field_count_;
  }
  virtual void SaveContent(const string& content, bool maybe_quote) {
    ++content_count_;
  }
  virtual void SaveElement(const ElementPtr& element) {
    ++element_count_;
    Serializer::SaveElement(element);
  }
  virtual void SaveElementGroup(const ElementPtr& element, int group_id) {
    ++element_group_count_;
    SaveElement(element);  // To count elements and recurse.
  }
  int get_begin_count() const {
    return begin_count_;
  }
  int get_end_count() const {
    return end_count_;
  }
  int get_field_count() const {
    return field_count_;
  }
  int get_element_count() const {
    return element_count_;
  }
  int get_element_group_count() const {
    return element_group_count_;
  }

 private:
  int begin_count_;
  int end_count_;
  int field_count_;
  int element_count_;
  int element_group_count_;
  int content_count_;
};

}  // end namespace kmldom

#endif // KML_DOM_STATS_SERIALIZER_H__