Integrate dynamic charts into autotest frontend.

frontend/croschart/views.py

+# Copyright (c) 2011 The Chromium OS 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 os
+
+import django.http
+from django.shortcuts import render_to_response
+import gviz_api
+import simplejson
+
+from autotest_lib.frontend.croschart import models
+
+
+class ChartException(Exception):
+    pass
+
+
+def CommonPlotChart(boards, netbook, from_build, to_build,
+                    test_name, test_key, width, height, interval=None):
+  try:
+    tpl_gviz_id = '%s-%s' % (test_name, test_key)
+    tpl_gviz_title = test_name
+    tpl_perf_key = test_key
+    tpl_width = width
+    tpl_height = height
+    gviz_data, tpl_job_tags = models.GetChartData(boards, netbook,
+                                                  from_build, to_build,
+                                                  test_name, test_key, interval)
+    if not gviz_data:
+      raise ChartException
+    # Use gviz_api to create efficient data tables.
+    data_table = gviz_api.DataTable({
+        'build': ('string', 'Build'),
+        tpl_perf_key: ('number', tpl_perf_key)})
+    data_table.LoadData(gviz_data)
+    tpl_gviz_js = data_table.ToJSon(['build', tpl_perf_key])
+    tpl_colors = ['red', 'blue', 'green', 'black']
+    return render_to_response('plot_chart.html', locals())
+  except:
+    return render_to_response('plot_unavailable.html', locals())
+
+
+# Responds to restful request.
+def PlotChartFromBuilds(request, boards, netbook, from_build, to_build,
+                        test_name, test_key, width, height):
+  return CommonPlotChart(boards, netbook, from_build, to_build,
+                         test_name, test_key, width, height)
+
+
+def PlotChartInterval(
+    request, boards, netbook, test_name, test_key, width, height):
+  from_build = to_build = None
+  interval = '2 WEEK'
+  return CommonPlotChart(boards, netbook, from_build, to_build,
+                         test_name, test_key, width, height, interval)
+
+
+def CommonFrameCharts(tpl_boards, tpl_netbook, tpl_width, tpl_height):
+  tpl_charts = simplejson.load(open(
+      os.path.join(
+          os.path.abspath(os.path.dirname(__file__)),
+          'croschart_defaults.json')))
+  return render_to_response('charts.html', locals())
+
+
+def FrameChartsBoardNetbook(request, boards, netbook, width, height):
+  return CommonFrameCharts(boards, netbook, width, height)
+
+
+def FrameChartsTestsKeys(request, boards, netbook, from_build, to_build,
+                         test_key_names, width, height):
+  tpl_width = width
+  tpl_height = height
+  tpl_boards = boards
+  tpl_netbook = netbook
+  tpl_from_build = from_build
+  tpl_to_build = to_build
+  tpl_charts = [c.split(',') for c in test_key_names.split('&')]
+  return render_to_response('charts.html', locals())