1 files changed, 46 insertions, 0 deletions
diff --git a/src/rocksdb/trace_replay/trace_record_handler.h b/src/rocksdb/trace_replay/trace_record_handler.h
new file mode 100644
index 000000000..88cf317dd
--- /dev/null
+++ b/src/rocksdb/trace_replay/trace_record_handler.h
@@ -0,0 +1,46 @@
+//  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root directory).
+
+#pragma once
+
+#include <memory>
+#include <unordered_map>
+#include <vector>
+
+#include "rocksdb/db.h"
+#include "rocksdb/options.h"
+#include "rocksdb/status.h"
+#include "rocksdb/system_clock.h"
+#include "rocksdb/trace_record.h"
+
+namespace ROCKSDB_NAMESPACE {
+
+// Handler to execute TraceRecord.
+class TraceExecutionHandler : public TraceRecord::Handler {
+ public:
+  TraceExecutionHandler(DB* db,
+                        const std::vector<ColumnFamilyHandle*>& handles);
+  virtual ~TraceExecutionHandler() override;
+
+  virtual Status Handle(const WriteQueryTraceRecord& record,
+                        std::unique_ptr<TraceRecordResult>* result) override;
+  virtual Status Handle(const GetQueryTraceRecord& record,
+                        std::unique_ptr<TraceRecordResult>* result) override;
+  virtual Status Handle(const IteratorSeekQueryTraceRecord& record,
+                        std::unique_ptr<TraceRecordResult>* result) override;
+  virtual Status Handle(const MultiGetQueryTraceRecord& record,
+                        std::unique_ptr<TraceRecordResult>* result) override;
+
+ private:
+  DB* db_;
+  std::unordered_map<uint32_t, ColumnFamilyHandle*> cf_map_;
+  WriteOptions write_opts_;
+  ReadOptions read_opts_;
+  SystemClock* clock_;
+};
+
+// To do: Handler for trace_analyzer.
+
+}  // namespace ROCKSDB_NAMESPACE