def _create_api(self, opts, args):
"""Create an API, as requested by the command."""
options = {}
options['documentroot'] = opts.docroot
options['configfile'] = opts.cfgfile
options['logfile'] = opts.logfile
options = init_options(options)
init_logger(options)
init_codecs(options)
api = API()
if 'options' in self.require_api:
api.options = options
if 'logger' in self.require_api:
api.logger = logging.getLogger('draco2.site')
if 'config' in self.require_api:
api.config = Config._create(api)
if 'loader' in self.require_api:
api.loader = Loader._create(api)
if 'events' in self.require_api:
api.events = EventManager._create(api)
if 'database' in self.require_api:
api.database = DatabaseManager._create(api)
if opts.dsn:
api.database._set_dsn(dsn)
if 'models' in self.require_api:
api.models = ModelManager._create(api)
return api
def handle_request(iface):
"""Handle a request."""
# Acquire the read-write lock. This lock is held by all threads in
# read mode when serving a Draco request. If one of the global Draco
# objects needs to be reloaded, the lock is upgraded to write mode
# by the thread that detected the reload condition. All threads will
# then serialize and the reload can continue.
rwlock.acquire_read()
try:
# Once off initialization. No user code can be run from this, and
# there's no option of recording errors.
initlock.acquire()
try:
global initialized, options
if not initialized:
options = init_options(iface.options())
init_logger(options)
init_codecs(options)
initialized = True
finally:
initlock.release()
# Dispatch the request. Errors are handled from now on.
debug = options.get('debug')
profile = options.get('profile')
logger = logging.getLogger('draco2.core.dispatch')
try:
agent = iface.headers_in().get('user-agent', [''])[0]
logger.debug('Request: %s (%s)' % (iface.uri(), agent))
t1 = time.time()
if profile:
import lsprof
stats = lsprof.profile(dispatch_request, iface)
stats.sort('inlinetime')
io = StringIO()
stats.pprint(top=20, file=io)
logger.debug(io.getvalue())
stats.sort('totaltime')
io = StringIO()
stats.pprint(top=20, file=io)
logger.debug(io.getvalue())
else:
dispatch_request(iface)
t2 = time.time()
logger.debug('Total time spent: %.2f (%s)' % ((t2 - t1), iface.uri()))
return
except HTTPResponse, exc:
status = exc.status
headers = exc.headers
message = http.http_reason_strings[status]
if not hasattr(exc, 'backtrace') or not exc.backtrace:
exc.backtrace = get_backtrace()
errorname = 'error_response_%03d' % status
exception = exc
except (StandardError, DracoError), exc:
status = http.HTTP_INTERNAL_SERVER_ERROR
headers = {}
if not hasattr(exc, 'backtrace') or not exc.backtrace:
exc.backtrace = get_backtrace()
if debug:
message = exc.backtrace
else:
message = http.http_reason_strings[status]
errorname = 'uncaught_exception'
exception = exc
logger.error('A uncaught exception occurred. Backtrace follows.')
logger.error(exc.backtrace)
