1 files changed, 35 insertions, 0 deletions
diff --git a/mocktracer/include/opentracing/mocktracer/json_recorder.h b/mocktracer/include/opentracing/mocktracer/json_recorder.h
new file mode 100644
index 0000000..fa5ef3c
--- /dev/null
+++ b/mocktracer/include/opentracing/mocktracer/json_recorder.h
@@ -0,0 +1,35 @@
+#ifndef OPENTRACING_MOCKTRACER_JSON_RECORDER_H
+#define OPENTRACING_MOCKTRACER_JSON_RECORDER_H
+
+#include <opentracing/mocktracer/recorder.h>
+#include <opentracing/mocktracer/symbols.h>
+#include <iosfwd>
+#include <memory>
+#include <mutex>
+#include <vector>
+
+namespace opentracing {
+BEGIN_OPENTRACING_ABI_NAMESPACE
+namespace mocktracer {
+// JsonRecorder serializes finished spans to a provided std::ostream in a JSON
+// format.
+//
+// See also FromJson.
+class OPENTRACING_MOCK_TRACER_API JsonRecorder : public Recorder {
+ public:
+  explicit JsonRecorder(std::unique_ptr<std::ostream>&& out);
+
+  void RecordSpan(SpanData&& span_data) noexcept override;
+
+  void Close() noexcept override;
+
+ private:
+  std::mutex mutex_;
+  std::unique_ptr<std::ostream> out_;
+  std::vector<SpanData> spans_;
+};
+}  // namespace mocktracer
+END_OPENTRACING_ABI_NAMESPACE
+}  // namespace opentracing
+
+#endif  // OPENTRACING_MOCKTRACER_JSON_RECORDER_H