def application(environ, start_response):
"""
The wsgi callback
"""
try:
# catch and handle bogus requests (ex. faveicon)
valid = valid_request(environ)
if not valid:
status, response_headers, response_body = create_invalid_return()
start_response(status, response_headers)
return [response_body]
# get the index range and index mode from the query string
id_range, id_mode = range_and_mode(environ)
# get the new unique end index
if id_range and id_mode:
UniqueIndex.database_connect()
index, id_range = update_index(id_range, id_mode)
UniqueIndex.database_close()
if index and id_range:
# create the response with start and end indices
status, response_headers, response_body = create_valid_return(index, id_range)
# send it back to the requestor
start_response(status, response_headers)
return [response_body]
# something bad
status, response_headers, response_body = create_invalid_return()
start_response(status, response_headers)
return [response_body]
except peewee.OperationalError, ex:
peewee_logger = logging.getLogger("peewee")
peewee_logger.setLevel(logging.DEBUG)
peewee_logger.addHandler(logging.StreamHandler())
peewee_logger.warn("OperationalError(%s)", str(ex))
main_logger.info("MYSQL_ENV_MYSQL_DATABASE = %s", os.getenv("MYSQL_ENV_MYSQL_DATABASE"))
main_logger.info("MYSQL_PORT_3306_TCP_ADDR = %s", os.getenv("MYSQL_PORT_3306_TCP_ADDR"))
main_logger.info("MYSQL_PORT_3306_TCP_PORT = %s", os.getenv("MYSQL_PORT_3306_TCP_PORT"))
main_logger.info("MYSQL_ENV_MYSQL_USER = %s", os.getenv("MYSQL_ENV_MYSQL_USER"))
main_logger.info("MYSQL_ENV_MYSQL_PASSWORD = %s", os.getenv("MYSQL_ENV_MYSQL_PASSWORD"))
def try_db_connect(attempts=0):
"""Try connecting to the db"""
try:
UniqueIndex.database_connect()
except peewee.OperationalError, ex:
if attempts < DATABASE_CONNECT_ATTEMPTS:
sleep(DATABASE_WAIT)
attempts += 1
try_db_connect(attempts)
else:
raise ex
try_db_connect()
if not UniqueIndex.table_exists():
UniqueIndex.create_table()
UniqueIndex.database_close()
httpd = make_server("0.0.0.0", 8051, application)
httpd.serve_forever()
if __name__ == "__main__":
main()