# Copyright 2014 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.


class TimelineImporter(object):
  """Reads trace data and populates timeline model with what it finds."""
  def __init__(self, model, trace_data):
    self._model = model
    self._trace_data = trace_data

  @staticmethod
  def GetSupportedPart():
    raise NotImplementedError

  def ImportEvents(self):
    """Processes the event data in the wrapper and creates and adds
    new timeline events to the model"""
    raise NotImplementedError

  def FinalizeImport(self):
    """Called after all other importers for the model are run."""
    raise NotImplementedError
