Websites/webkit-perf.appspot.com/controller.py

#!/usr/bin/env python
# Copyright (C) 2012 Google Inc. All rights reserved.
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import urllib
import webapp2
from google.appengine.api import taskqueue
from google.appengine.ext import db

from json_generators import DashboardJSONGenerator
from json_generators import ManifestJSONGenerator
from models import Branch
from models import DashboardImage
from models import PersistentCache
from models import Platform
from models import Runs
from models import Test
from models import model_from_numeric_id


def schedule_manifest_update():
    taskqueue.add(url='/api/test/update')


class ManifestUpdateHandler(webapp2.RequestHandler):
    def post(self):
        self.response.headers['Content-Type'] = 'text/plain; charset=utf-8'
        PersistentCache.set_cache('manifest', ManifestJSONGenerator().to_json())
        self.response.out.write('OK')


class CachedManifestHandler(webapp2.RequestHandler):
    def get(self):
        self.response.headers['Content-Type'] = 'application/json'
        manifest = PersistentCache.get_cache('manifest')
        if manifest:
            self.response.out.write(manifest)
        else:
            schedule_manifest_update()


def schedule_dashboard_update():
    taskqueue.add(url='/api/test/dashboard/update')


class DashboardUpdateHandler(webapp2.RequestHandler):
    def post(self):
        self.response.headers['Content-Type'] = 'text/plain; charset=utf-8'
        PersistentCache.set_cache('dashboard', DashboardJSONGenerator().to_json())
        self.response.out.write('OK')


class CachedDashboardHandler(webapp2.RequestHandler):
    def get(self):
        self.response.headers['Content-Type'] = 'application/json'
        dashboard = PersistentCache.get_cache('dashboard')
        if dashboard:
            self.response.out.write(dashboard)
        else:
            schedule_dashboard_update()


def schedule_runs_update(test_id, branch_id, platform_id, regenerate_runs=True):
    if regenerate_runs:
        taskqueue.add(url='/api/test/runs/update', params={'id': test_id, 'branchid': branch_id, 'platformid': platform_id})
    taskqueue.add(url='/api/test/runs/chart', params={'id': test_id, 'branchid': branch_id, 'platformid': platform_id,
        'displayDays': 7})


def _get_test_branch_platform_ids(handler):
    try:
        test_id = int(handler.request.get('id', 0))
        branch_id = int(handler.request.get('branchid', 0))
        platform_id = int(handler.request.get('platformid', 0))
        return test_id, branch_id, platform_id
    except TypeError:
        # FIXME: Output an error here
        return 0, 0, 0


class RunsUpdateHandler(webapp2.RequestHandler):
    def post(self):
        self.response.headers['Content-Type'] = 'text/plain; charset=utf-8'
        test_id, branch_id, platform_id = _get_test_branch_platform_ids(self)

        branch = model_from_numeric_id(branch_id, Branch)
        platform = model_from_numeric_id(platform_id, Platform)
        test = model_from_numeric_id(test_id, Test)
        assert branch
        assert platform
        assert test

        Runs.update_or_insert(branch, platform, test)
        self.response.out.write('OK')


class CachedRunsHandler(webapp2.RequestHandler):
    def get(self):
        self.response.headers['Content-Type'] = 'application/json'

        test_id, branch_id, platform_id = _get_test_branch_platform_ids(self)
        runs = Runs.json_by_ids(branch_id, platform_id, test_id)
        if runs:
            self.response.out.write(runs)
        elif model_from_numeric_id(branch_id, Branch) and model_from_numeric_id(platform_id, Platform) and model_from_numeric_id(test_id, Test):
            schedule_runs_update(test_id, branch_id, platform_id)


class RunsChartHandler(webapp2.RequestHandler):
    def post(self):
        x = 0
        self.response.headers['Content-Type'] = 'text/plain; charset=utf-8'
        test_id, branch_id, platform_id = _get_test_branch_platform_ids(self)

        branch = model_from_numeric_id(branch_id, Branch)
        platform = model_from_numeric_id(platform_id, Platform)
        test = model_from_numeric_id(test_id, Test)
        display_days = int(self.request.get('displayDays'))
        assert branch
        assert platform
        assert test
        params = Runs.get_by_objects(branch, platform, test).chart_params(display_days)
        if not params:
            return
        dashboard_chart_file = urllib.urlopen('http://chart.googleapis.com/chart', urllib.urlencode(params))

        DashboardImage.create(branch.id, platform.id, test.id, display_days, dashboard_chart_file.read())


class DashboardImageHandler(webapp2.RequestHandler):
    def get(self, test_id, branch_id, platform_id, display_days):
        try:
            branch_id = int(branch_id)
            platform_id = int(platform_id)
            test_id = int(test_id)
            display_days = int(display_days)
        except ValueError:
            self.response.headers['Content-Type'] = 'text/plain; charset=utf-8'
            self.response.out.write('Failed')

        self.response.headers['Content-Type'] = 'image/png'
        self.response.out.write(DashboardImage.get_image(branch_id, platform_id, test_id, display_days))


def schedule_report_process(log):
    taskqueue.add(url='/api/test/report/process', params={'id': log.key().id()})