Add velib backend

modules/velib/backend.py

@@ -0,0 +1,93 @@
+# -*- coding: utf-8 -*-
+
+# Copyright(C) 2013      dud
+#
+# This file is part of weboob.
+#
+# weboob is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# weboob 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 Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with weboob. If not, see <http://www.gnu.org/licenses/>.
+
+
+from weboob.tools.backend import BaseBackend
+from weboob.capabilities.gauge import ICapGauge, GaugeSensor, Gauge, SensorNotFound
+
+from .browser import VelibBrowser
+
+import re
+
+__all__ = ['VelibBackend']
+
+
+class VelibBackend(BaseBackend, ICapGauge):
+    NAME = 'velib'
+    DESCRIPTION = u'get Vélib\' information'
+    MAINTAINER = u'Herve Werner'
+    EMAIL = 'dud225@hotmail.com'
+    VERSION = '0.g'
+    LICENSE = 'AGPLv3'
+
+    BROWSER = VelibBrowser
+    STORAGE = {'boards' : {}}
+
+
+    def iter_gauges(self, pattern=None):
+        if pattern is None:
+            for gauge in self.browser.get_station_list():
+                yield gauge
+        else:
+            lowpattern = pattern.lower()
+            for gauge in self.browser.get_station_list():
+                if lowpattern in gauge.name.lower() or lowpattern in gauge.city.lower():
+                    yield gauge
+
+    def iter_sensors(self, gauge, pattern=None):
+        if not isinstance(gauge, Gauge):
+            gauge = self._get_gauge_by_id(gauge)
+            if gauge is None:
+                raise SensorNotFound()
+
+        gauge.sensors = self.browser.get_station_infos(gauge)
+        if pattern is None:
+            for sensor in gauge.sensors:
+                yield sensor
+        else:
+            lowpattern = pattern.lower()
+            for sensor in gauge.sensors:
+                if lowpattern in sensor.name.lower():
+                    yield sensor
+
+    def get_last_measure(self, sensor):
+        if not isinstance(sensor, GaugeSensor):
+            sensor = self._get_sensor_by_id(sensor)
+        if sensor is None:
+            raise SensorNotFound()
+        return sensor.lastvalue
+
+    def _get_gauge_by_id(self, id):
+        for gauge in self.browser.get_station_list():
+            if id == gauge.id:
+                return gauge
+        return None
+
+    def _get_sensor_by_id(self, id):
+	reSensorId = re.search ('(\d+)-((bikes|attach|status))', id, re.IGNORECASE)
+	if reSensorId:
+	    gauge = reSensorId.group(1)
+	    pattern = reSensorId.group(2)
+	    sensor_generator = self.iter_sensors(gauge, pattern)
+	    if sensor_generator:
+		return next(sensor_generator)
+	    else:
+       	    	return None
+	else:
+       	    return None