[utils] Remove outdated scheduler communication bridge

beat/web/utils/scheduler.py

-#!/usr/bin/env python
-# vim: set fileencoding=utf-8 :
-
-###############################################################################
-#                                                                             #
-# Copyright (c) 2016 Idiap Research Institute, http://www.idiap.ch/           #
-# Contact: beat.support@idiap.ch                                              #
-#                                                                             #
-# This file is part of the beat.web module of the BEAT platform.              #
-#                                                                             #
-# Commercial License Usage                                                    #
-# Licensees holding valid commercial BEAT licenses may use this file in       #
-# accordance with the terms contained in a written agreement between you      #
-# and Idiap. For further information contact tto@idiap.ch                     #
-#                                                                             #
-# Alternatively, this file may be used under the terms of the GNU Affero      #
-# Public License version 3 as published by the Free Software and appearing    #
-# in the file LICENSE.AGPL included in the packaging of this file.            #
-# The BEAT platform 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.                                        #
-#                                                                             #
-# You should have received a copy of the GNU Affero Public License along      #
-# with the BEAT platform. If not, see http://www.gnu.org/licenses/.           #
-#                                                                             #
-###############################################################################
-
-from django.conf import settings
-import httplib
-import logging
-import traceback
-import urlparse
-import urllib
-import simplejson as json
-
-
-logger = logging.getLogger(__name__)
-
-
-#----------------------------------------------------------
-
-
-def _connect(url, port):
-    parsed_url = urlparse.urlparse(url)
-
-    host_and_port = parsed_url.netloc.split(':')
-
-    if port is None:
-        if len(host_and_port) == 2:
-            host, port = host_and_port
-        else:
-            host = host_and_port
-            if parsed_url.scheme == 'https':
-                port = 443
-            else:
-                port = 80
-    else:
-        host = host_and_port[0]
-
-    if parsed_url.scheme == 'https':
-        connection = httplib.HTTPSConnection(host, port)
-    else:
-        connection = httplib.HTTPConnection(host, port)
-
-    try:
-        connection.connect()
-    except:
-        logger.error('Failed to establish a connection with the scheduler API, reason: %s' % traceback.format_exc())
-        return None
-
-    return connection
-
-
-#----------------------------------------------------------
-
-
-def _combine_url_parameters(url, params):
-    """Combines the given URL with the parameter dictionary"""
-
-    parsed_url = urlparse.urlparse(url)
-
-    qs = []
-
-    if parsed_url.query:
-        qs.extend([parsed_url.query, '&'])
-
-    qs.append(urllib.urlencode(params, doseq=True))
-
-    return urlparse.urlunparse((
-        parsed_url[0],
-        parsed_url[1],
-        parsed_url[2],
-        parsed_url[3],
-        ''.join(qs),
-        parsed_url[5]
-    ))
-
-
-#----------------------------------------------------------
-
-
-def _sendMessage(url, params=None, data=None, msg_type='PUT'):
-    # Establish the connection
-    connection = _connect(settings.SCHEDULER_ADDRESS, settings.SCHEDULER_PORT)
-    if connection is None:
-        return None
-
-    # Send the request
-    headers = {}
-
-    if data is not None:
-        data = json.dumps(data)
-        headers['Content-Type'] = 'application/json'
-    else:
-        headers['Content-Length'] = 0
-
-    try:
-        if params:
-            full_url = _combine_url_parameters(url, params)
-        else:
-            full_url = url
-
-        connection.request(msg_type, full_url, data, headers)
-        response = connection.getresponse()
-        data = response.read()
-    except:
-        logger.error('Failed to use the Web API, reason: %s' % traceback.format_exc())
-        return None
-    finally:
-        connection.close()
-
-    return (response.status, data)
-
-
-#----------------------------------------------------------
-
-
-def putMessage(url, params=None, data=None):
-    return _sendMessage(url, params=params, data=data, msg_type='PUT')
-
-
-#----------------------------------------------------------
-
-
-def postMessage(url, params=None, data=None):
-    return _sendMessage(url, params=params, data=data, msg_type='POST')
-
-
-#----------------------------------------------------------
-
-
-def getMessage(url, params=None, data=None):
-    return _sendMessage(url, params=params, data=data, msg_type='GET')