Task #8887: added create_add_notifications.sql.py to create...

Task #8887: added create_add_notifications.sql.py to create add_notifications.sql. Added two update notifications for resource availability and capacity

.gitattributes

@@ -5042,6 +5042,7 @@ SAS/ResourceAssignment/ResourceAssignmentDatabase/sql/add_notifications.sql -tex
 SAS/ResourceAssignment/ResourceAssignmentDatabase/sql/add_resource_allocation_statics.sql -text
 SAS/ResourceAssignment/ResourceAssignmentDatabase/sql/add_triggers.sql -text
 SAS/ResourceAssignment/ResourceAssignmentDatabase/sql/add_virtual_instrument.sql -text
+SAS/ResourceAssignment/ResourceAssignmentDatabase/sql/create_add_notifications.sql.py -text
 SAS/ResourceAssignment/ResourceAssignmentDatabase/sql/create_add_virtual_instrument.sql.py -text
 SAS/ResourceAssignment/ResourceAssignmentDatabase/sql/create_and_populate_database.sql -text
 SAS/ResourceAssignment/ResourceAssignmentDatabase/sql/create_database.sql -text

SAS/ResourceAssignment/ResourceAssignmentDatabase/sql/add_notifications.sql

---this file was generated by make_radb_postgres_notification_queries() in python module lofar.sas.resourceassignment.database.radbpglistener
+--this file was generated by create_add_notifications.sql.py
+--it creates triggers and functions which fire postgres notify events upon the given table actions
+--these notify events can be listened to implenting a subclass of the PostgresListener in the lofar.common.postgres python module
+--for the radb such a subclass has been made, which listens specifically to the notifications defined below
+--RADBPGListener in module lofar.sas.resourceassignment.database.radbpglistener
+--this RADBPGListener then broadcasts the event on the lofar bus.
+
 
 DROP TRIGGER IF EXISTS TRIGGER_NOTIFY_NOTIFY_task_INSERT_with_task_view ON resource_allocation.task CASCADE;
 DROP FUNCTION IF EXISTS resource_allocation.NOTIFY_task_INSERT_with_task_view();
@@ -153,3 +159,44 @@ CREATE TRIGGER TRIGGER_NOTIFY_NOTIFY_resource_claim_DELETE
 AFTER DELETE ON resource_allocation.resource_claim
 FOR EACH ROW
 EXECUTE PROCEDURE resource_allocation.NOTIFY_resource_claim_DELETE();
+
+
+DROP TRIGGER IF EXISTS TRIGGER_NOTIFY_NOTIFY_resource_availability_UPDATE ON resource_monitoring.resource_availability CASCADE;
+DROP FUNCTION IF EXISTS resource_monitoring.NOTIFY_resource_availability_UPDATE();
+
+
+CREATE OR REPLACE FUNCTION resource_monitoring.NOTIFY_resource_availability_UPDATE()
+RETURNS TRIGGER AS $$
+BEGIN
+PERFORM pg_notify(CAST('resource_availability_update' AS text),
+'{"old":' || row_to_json(OLD)::text || ',"new":' || row_to_json(NEW)::text || '}');
+RETURN NEW;
+END;
+$$ LANGUAGE plpgsql;
+
+
+CREATE TRIGGER TRIGGER_NOTIFY_NOTIFY_resource_availability_UPDATE
+AFTER UPDATE ON resource_monitoring.resource_availability
+FOR EACH ROW
+EXECUTE PROCEDURE resource_monitoring.NOTIFY_resource_availability_UPDATE();
+
+
+DROP TRIGGER IF EXISTS TRIGGER_NOTIFY_NOTIFY_resource_capacity_UPDATE ON resource_monitoring.resource_capacity CASCADE;
+DROP FUNCTION IF EXISTS resource_monitoring.NOTIFY_resource_capacity_UPDATE();
+
+
+CREATE OR REPLACE FUNCTION resource_monitoring.NOTIFY_resource_capacity_UPDATE()
+RETURNS TRIGGER AS $$
+BEGIN
+PERFORM pg_notify(CAST('resource_capacity_update' AS text),
+'{"old":' || row_to_json(OLD)::text || ',"new":' || row_to_json(NEW)::text || '}');
+RETURN NEW;
+END;
+$$ LANGUAGE plpgsql;
+
+
+CREATE TRIGGER TRIGGER_NOTIFY_NOTIFY_resource_capacity_UPDATE
+AFTER UPDATE ON resource_monitoring.resource_capacity
+FOR EACH ROW
+EXECUTE PROCEDURE resource_monitoring.NOTIFY_resource_capacity_UPDATE();
+

SAS/ResourceAssignment/ResourceAssignmentDatabase/sql/create_add_notifications.sql.py

+#!/usr/bin/python
+
+# Copyright (C) 2012-2015  ASTRON (Netherlands Institute for Radio Astronomy)
+# P.O. Box 2, 7990 AA Dwingeloo, The Netherlands
+#
+# This file is part of the LOFAR software suite.
+# The LOFAR software suite is free software: you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as published
+# by the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# The LOFAR software suite is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with the LOFAR software suite. If not, see <http://www.gnu.org/licenses/>.
+
+# $Id: radb.py 33394 2016-01-25 15:53:55Z schaap $
+
+'''
+TODO: documentation
+'''
+import logging
+import psycopg2
+import psycopg2.extras
+
+from lofar.common.postgres import makePostgresNotificationQueries
+
+logger = logging.getLogger(__name__)
+
+if __name__ == '__main__':
+    with open('add_notifications.sql', 'wt') as f:
+        f.write('--this file was generated by create_add_notifications.sql.py\n')
+        f.write('--it creates triggers and functions which fire postgres notify events upon the given table actions\n')
+        f.write('--these notify events can be listened to implenting a subclass of the PostgresListener in the lofar.common.postgres python module\n')
+        f.write('--for the radb such a subclass has been made, which listens specifically to the notifications defined below\n')
+        f.write('--RADBPGListener in module lofar.sas.resourceassignment.database.radbpglistener\n')
+        f.write('--this RADBPGListener then broadcasts the event on the lofar bus.\n')
+        f.write('\n')
+
+        f.writelines(makePostgresNotificationQueries('resource_allocation', 'task', 'INSERT', view_for_row='task_view'))
+        f.writelines(makePostgresNotificationQueries('resource_allocation', 'task', 'UPDATE', view_for_row='task_view'))
+        f.writelines(makePostgresNotificationQueries('resource_allocation', 'task', 'DELETE'))
+        f.writelines(makePostgresNotificationQueries('resource_allocation', 'specification', 'UPDATE', view_for_row='task_view', view_selection_id='specification_id'))
+        f.writelines(makePostgresNotificationQueries('resource_allocation', 'resource_claim', 'INSERT', view_for_row='resource_claim_view'))
+        f.writelines(makePostgresNotificationQueries('resource_allocation', 'resource_claim', 'UPDATE', view_for_row='resource_claim_view'))
+        f.writelines(makePostgresNotificationQueries('resource_allocation', 'resource_claim', 'DELETE'))
+        f.writelines(makePostgresNotificationQueries('resource_monitoring', 'resource_availability', 'UPDATE'))
+        f.writelines(makePostgresNotificationQueries('resource_monitoring', 'resource_capacity', 'UPDATE'))