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1# Copyright (C) 2010 Google Inc. All rights reserved.
2#
3# Redistribution and use in source and binary forms, with or without
4# modification, are permitted provided that the following conditions are
5# met:
6#
7#     * Redistributions of source code must retain the above copyright
8# notice, this list of conditions and the following disclaimer.
9#     * Redistributions in binary form must reproduce the above
10# copyright notice, this list of conditions and the following disclaimer
11# in the documentation and/or other materials provided with the
12# distribution.
13#     * Neither the name of Google Inc. nor the names of its
14# contributors may be used to endorse or promote products derived from
15# this software without specific prior written permission.
16#
17# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
20# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
21# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
22# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
23# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
27# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28
29import datetime
30import itertools
31
32from google.appengine.ext import webapp
33from google.appengine.ext.webapp import template
34
35from model.queues import Queue
36from model import queuestatus
37
38
39class QueueStatus(webapp.RequestHandler):
40    def _rows_for_work_items(self, queue):
41        queued_items = queue.work_items()
42        active_items = queue.active_work_items()
43        if not queued_items:
44            return []
45        rows = []
46        for item_id in queued_items.item_ids:
47            rows.append({
48                "attachment_id": item_id,
49                "bug_id": 1,
50                "lock_time": active_items and active_items.time_for_item(item_id),
51            })
52        return rows
53
54    def _grouping_key_for_status(self, status):
55        return "%s-%s" % (status.active_patch_id, status.bot_id)
56
57    def _build_status_groups(self, statuses):
58        return [list(group) for key, group in itertools.groupby(statuses, self._grouping_key_for_status)]
59
60    def _fetch_statuses(self, queue, bot_id):
61        statuses = queuestatus.QueueStatus.all()
62        statuses.filter("queue_name =", queue.name())
63        if bot_id:
64            statuses.filter("bot_id =", bot_id)
65        return statuses.order("-date").fetch(15)
66
67    def _fetch_last_message_matching(self, queue, bot_id, message):
68        statuses = queuestatus.QueueStatus.all()
69        statuses.filter("queue_name =", queue.name())
70        if bot_id:
71            statuses.filter("bot_id =", bot_id)
72        statuses.filter("message =", message)
73        return statuses.order("-date").get()
74
75    def _fetch_trailing_days_pass_count(self, queue, bot_id, days):
76        statuses = queuestatus.QueueStatus.all()
77        statuses.filter("queue_name =", queue.name())
78        days_ago = datetime.datetime.now() - datetime.timedelta(days=days)
79        statuses.filter("date >", days_ago)
80        if bot_id:
81            statuses.filter("bot_id =", bot_id)
82        statuses.filter("message =", "Pass")
83        return statuses.count()
84
85    def _page_title(self, queue, bot_id):
86        title = "%s Messages" % queue.display_name()
87        if bot_id:
88            title += " from \"%s\"" % (bot_id)
89        return title
90
91    def get(self, queue_name, bot_id=None):
92        queue_name = queue_name.lower()
93        queue = Queue.queue_with_name(queue_name)
94        if not queue:
95            self.error(404)
96            return
97
98        statuses = self._fetch_statuses(queue, bot_id)
99        template_values = {
100            "page_title": self._page_title(queue, bot_id),
101            "work_item_rows": self._rows_for_work_items(queue),
102            "status_groups": self._build_status_groups(statuses),
103            "bot_id": bot_id,
104            "last_pass": self._fetch_last_message_matching(queue, bot_id, "Pass"),
105            "last_boot": self._fetch_last_message_matching(queue, bot_id, "Starting Queue"),
106            "trailing_month_pass_count": self._fetch_trailing_days_pass_count(queue, bot_id, 30),
107            "trailing_week_pass_count": self._fetch_trailing_days_pass_count(queue, bot_id, 7),
108        }
109        self.response.out.write(template.render("templates/queuestatus.html", template_values))
110