def setUp(self):
self.testOGCQuerier = SurveyQuerierFactory().createQuerier(
SurveyGisServer.OGC)
self.testGeonodeQuerier = SurveyQuerierFactory().createQuerier(
SurveyGisServer.GEONODE)
self.testArcRESTQuerier = SurveyQuerierFactory().createQuerier(
SurveyGisServer.ARCREST)
settings.CELERY_ALWAYS_EAGER = True
def setUp(self):
self.testOGCQuerier = SurveyQuerierFactory().createQuerier(
SurveyGisServer.OGC)
self.testGeonodeQuerier = SurveyQuerierFactory().createQuerier(
SurveyGisServer.GEONODE)
self.testArcRESTQuerier = SurveyQuerierFactory().createQuerier(
SurveyGisServer.ARCREST)
self.liegePolygon = Polygon(
((235745, 147615), (235745, 147616), (235746, 147616),
(235746, 147615), (235745, 147615)))
self.multiPolygonWKT = "MULTIPOLYGON(((235424.935 148687.065,235429.244 148689.993,235429.943 148689.086,235433.273 148691.635,235438.99 148684.223,235443.735 148678.077,235445.516 148679.44,235454.802 148668.44,235453.069 148665.975,235448.739 148659.82,235433.586 148682.192,235429.837 148679.679,235426.711 148684.39,235424.935 148687.065)),((241020.367 152036.194,241024.691 152041.929,241036.183 152032.719,241031.701 152026.956,241020.367 152036.194)))"
with open('imio_survey/test_data/liege.wkt', 'r') as liegeWKTFile:
self.liegeWKT = liegeWKTFile.read().replace('\n', '')
settings.CELERY_ALWAYS_EAGER = True
def _processQuery(self, survey_layer_param, survey_attribute_param,
survey_area_filter):
result = None
if survey_layer_param:
if survey_attribute_param:
try:
survey_layer = SurveyLayer.objects.get(
pk=survey_layer_param)
querier = SurveyQuerierFactory().createQuerier(
survey_layer.gis_server.servertype)
if querier.supportFindAttributeValues():
find_attributes_result = querier.findAttributeValues(
survey_layer.layer_name, survey_attribute_param,
survey_layer.gis_server.url,
survey_layer.gis_server.username,
survey_layer.gis_server.password,
survey_area_filter)
if find_attributes_result:
result = {
'success': True,
'message': "Success",
'result': find_attributes_result
}
else:
result = {
'success': False,
'message': "Error : backend query failed",
'result': None
}
else:
result = {
'success': False,
'message':
"Error : Server Backend for this layer does not support to query values.",
'result': None
}
except ObjectDoesNotExist:
result = {
'success':
False,
'message':
"Error : Provided layer %s does not exist in database"
% (survey_layer_param),
'result':
None
}
else:
result = {
'success': False,
'message':
"Error : Parameter att (SurveyAttributeName) is missing",
'result': None
}
else:
result = {
'success': False,
'message': "Error : Parameter l (SurveyLayer) is missing",
'result': None
}
return result
def queryLayer(layer_pk, wktGeometry, buffer):
geosGeom = fromstr(wktGeometry)
geosGeomBuffer = geosGeom.buffer(buffer)
layer = SurveyLayer.objects.get(pk=layer_pk)
logger.info("Querying layer %s (%s)" %
(layer.description, layer.layer_name))
gis_server = layer.gis_server
query_result = {
'layer_id': layer.id,
'description': layer.description,
'name': layer.layer_name,
'attributes': None,
'success': False,
'message': None
}
try:
querier = SurveyQuerierFactory().createQuerier(gis_server.servertype)
result = querier.identify(geosGeomBuffer, layer.geometry_field_name,
layer.layer_name, gis_server.url,
gis_server.username, gis_server.password)
query_result['attributes'] = result
query_result['success'] = True
except urllib2.HTTPError, error:
query_result['success'] = False
query_result['message'] = "HTTPError : " + str(
error.code) + error.filename
def queryLayer(layer_pk, wktGeometry, buffer):
geosGeom = fromstr(wktGeometry)
geosGeomBuffer = geosGeom.buffer(buffer)
layer = SurveyLayer.objects.get(pk=layer_pk)
logger.info("Querying layer %s" % layer.layer_name)
gis_server = layer.gis_server
querier = SurveyQuerierFactory().createQuerier(gis_server.servertype)
result = querier.identify(geosGeomBuffer, layer.layer_name, gis_server.url)
return {'name': layer.layer_name, 'attributes': result}
def get(self, request, *args, **kwargs):
result = None
survey_layer_param = request.GET.get("l", None) #SurveyLayer
if survey_layer_param:
survey_layer = SurveyLayer.objects.get(pk=survey_layer_param)
querier = SurveyQuerierFactory().createQuerier(
survey_layer.gis_server.servertype)
fields = querier.getFields(survey_layer.layer_name,
survey_layer.gis_server.url,
survey_layer.gis_server.username,
survey_layer.gis_server.password)
result = {'success': True, 'message': "Ok", 'result': fields}
else:
result = {
'success': False,
'message': "Error : Parameter l (SurveyLayer) is missing",
'result': None
}
return HttpResponse(json.dumps(result),
content_type="application/json; charset=utf-8")
