def view_switch(view, args):
"""
General method which implements view logic
:param view: str, view to construct a response for
:param args: view arguments passed along
:return: text response from databayes or error
"""
log.debug('Processing view: "{0}"'.format(view))
log.debug('Processing args: "{0}"'.format(str(args)))
query_param_obj = unpack_query_params(request)
if (not query_param_obj['ok']):
return Response(json.dumps([query_param_obj['message']]),
mimetype='application/json')
# Retrieve a valid queue item
qid = handle_queue_validation()
if qid == -1:
return Response(json.dumps(['Queue is full, try again later.']),
mimetype='application/json')
# Construct command
cmd = ""
if view == 'define_entity':
if 'values' in query_param_obj.keys() and \
'fields' in query_param_obj.keys():
arg_str = get_arg_str(query_param_obj['fields'],
query_param_obj['values'], '_')
else:
arg_str = ""
log.info('Warning: entity has no attributes')
cmd = 'def {0}({1})'.format(args['entity'], arg_str) \
if arg_str else 'def ' + str(args['entity'])
elif view == 'add_relation':
arg_str_1 = get_arg_str(query_param_obj['fields1'], query_param_obj['values1'], '=')
arg_str_2 = get_arg_str(query_param_obj['fields2'], query_param_obj['values2'], '=')
cmd = 'add rel {0}({1}) {2}({3})'.format(args['entity_1'], arg_str_1,
args['entity_2'], arg_str_2)
elif view == 'generate':
pass
elif view == 'list_entity':
cmd = 'lst ent {0}'.format(args['pattern'])
elif view == 'list_relation':
arg_str_1 = get_arg_str(query_param_obj['fields1'], query_param_obj['values1'], '=')
arg_str_2 = get_arg_str(query_param_obj['fields2'], query_param_obj['values2'], '=')
cmd = 'lst rel {0}({1}) {2}({3})'.format(args['entity_1'], arg_str_1,
args['entity_2'], arg_str_2)
elif view == 'remove_entity':
cmd = 'rm ent {0}'.format(args['entity'])
elif view == 'remove_relation':
arg_str_1 = get_arg_str(query_param_obj['fields1'], query_param_obj['values1'], '=')
arg_str_2 = get_arg_str(query_param_obj['fields2'], query_param_obj['values2'], '=')
cmd = 'rm rel {0}({1}) {2}({3})'.format(args['entity_1'], arg_str_1,
args['entity_2'], arg_str_2)
log.info('sending command: "{0}"'.format(cmd))
# Send cmd to databayes daemon
redisio.DataIORedis().connect()
redisio.DataIORedis().write(config.DBY_CMD_QUEUE_PREFIX + qid, cmd)
# check response
rsp = wait_for_response(qid)
if not rsp:
rsp = "Could not find response before max retires expired."
return rsp
def init_views():
for key in route_deco:
log.info('Registering view - {0}'.format(key))
route = route_deco[key]
view_method = view_list[key]
view_list[key] = route(view_method)
args, 'silent') and hasattr(args, 'quiet'):
level = logging.WARNING - ((args.verbose - args.quiet) * 10)
if args.silent:
level = logging.CRITICAL + 1
else:
level = logging.INFO
log_set_level(level)
# Apply routing & auth deco to views
init_views()
if args.vagrant:
host = config.__instance_host_vagrant__
else:
host = config.__instance_host__
log.info('host = ' + host)
app.run(debug=args.debug,
use_reloader=args.reloader,
host=host,
port=config.__instance_port__,)
else:
# Invocation by apache mod_wsgi
# Setup file logger, flask context exceptions will be
# written to the handler
#
from logging import FileHandler, Formatter
log = FileHandler(config.FLASK_LOG)
