1 files changed, 20 insertions, 0 deletions
diff --git a/chromium/third_party/catapult/tracing/tracing/mre/json_output_formatter.py b/chromium/third_party/catapult/tracing/tracing/mre/json_output_formatter.py
new file mode 100644
index 00000000000..aafc8838de3
--- /dev/null
+++ b/chromium/third_party/catapult/tracing/tracing/mre/json_output_formatter.py
@@ -0,0 +1,20 @@
+# Copyright (c) 2015 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+import json
+
+from tracing.mre import output_formatter
+
+
+class JSONOutputFormatter(output_formatter.OutputFormatter):
+
+  def __init__(self, output_file):
+    # TODO(nduca): Resolve output_file here vs output_stream in base class.
+    super(JSONOutputFormatter, self).__init__(output_file)
+    self.output_file = output_file
+
+  def Format(self, result_list):
+    d = [result.AsDict() for result in result_list]
+    json.dump(d, self.output_file, indent=2)
+    if hasattr(self.output_file, 'flush'):
+      self.output_file.flush()