1 files changed, 94 insertions, 0 deletions
diff --git a/Tools/QueueStatusServer/handlers/recentstatus.py b/Tools/QueueStatusServer/handlers/recentstatus.py
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+++ b/Tools/QueueStatusServer/handlers/recentstatus.py
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+# Copyright (C) 2009 Google Inc. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+# 
+#     * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following disclaimer
+# in the documentation and/or other materials provided with the
+# distribution.
+#     * Neither the name of Google Inc. nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+# 
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import datetime
+
+from google.appengine.ext import webapp
+from google.appengine.ext.webapp import template
+
+from model.queues import Queue
+from model.queuestatus import QueueStatus
+from model.workitems import WorkItems
+
+
+class QueueBubble(object):
+    """View support class for recentstatus.html"""
+    def __init__(self, queue):
+        self._queue = queue
+        self._work_items = queue.work_items()
+        self._last_status = QueueStatus.all().filter("queue_name =", queue.name()).order("-date").get()
+
+    # FIXME: name and display_name should be replaced by a .queue() accessor.
+    def name(self):
+        return self._queue.name()
+
+    def display_name(self):
+        return self._queue.display_name()
+
+    def _last_status_date(self):
+        if not self._last_status:
+            return None
+        return self._last_status.date
+
+    def last_heard_from(self):
+        if not self._work_items:
+            return self._last_status_date()
+        return max(self._last_status_date(), self._work_items.date)
+
+    def is_alive(self):
+        if not self.last_heard_from():
+            return False
+        return self.last_heard_from() > (datetime.datetime.now() - datetime.timedelta(minutes=30))
+
+    def status_class(self):
+        if not self.is_alive():
+            return "dead"
+        if self.pending_items_count() > 1:
+            return "behind"
+        return "alive"
+
+    def status_text(self):
+        if not self._work_items:
+            return "Offline"
+        if not self._work_items.item_ids:
+            return "Idle"
+        return self._last_status.message
+
+    def pending_items_count(self):
+        if not self._work_items:
+            return 0
+        return len(self._work_items.item_ids)
+
+
+class QueuesOverview(webapp.RequestHandler):
+
+    def get(self):
+        template_values = {
+            "queues": [QueueBubble(queue) for queue in Queue.all()],
+        }
+        self.response.out.write(template.render("templates/recentstatus.html", template_values))