def create_app():
"""Creates a new application instance.
Returns:
A configured WSGI application instance.
"""
# Database connectivity variables.
db_type = os.environ.get('UWSOLAR_DB_TYPE', 'sqlite')
db_user = os.environ.get('UWSOLAR_DB_USER', '')
db_password = os.environ.get('UWSOLAR_DB_PASSWORD', '')
db_host = os.environ.get('UWSOLAR_DB_HOST', 'sqlite.db')
db_name = os.environ.get('UWSOLAR_DB_NAME', '')
db_pool_size = os.environ.get('UWSOLAR_DB_POOL_SIZE', 0)
# Solar panel connectivity variables.
panel_metrics_workbook = os.environ.get('UWSOLAR_PANEL_METRICS_WORKBOOK')
panel_metrics_worksheet_name = os.environ.get(
'UWSOLAR_PANEL_METRICS_WORKSHEET_NAME', 'Metrics')
panel_topic_prefix = os.environ.get('UWSOLAR_PANEL_TOPIC_PREFIX')
panel_host = os.environ.get('UWSOLAR_PANEL_HOST')
# Initialize database connection.
db_opts = db_accessor.DatabaseOptions(db_type, db_user, db_password,
db_host, db_name, db_pool_size)
db_con = db_accessor.DatabaseAccessor(db_opts)
# Initialize solar panel connection.
panel_metrics = metrics_builder.build_metrics(
panel_metrics_workbook, panel_metrics_worksheet_name,
panel_topic_prefix)
panel_con = panel_accessor.PanelAccessor(panel_host, panel_metrics)
# Create application instance.
return api_server.ApiServer(db_con, panel_con).app()
def main():
"""Parses command line arguments and initilizes the server."""
args = parse_arguments()
logging.basicConfig(level=logging.getLevelName(args.log_level))
# Initialize database connection.
db_opts = db_accessor.DatabaseOptions(args.db_type, args.db_user,
args.db_password, args.db_host,
args.db_name, args.db_pool_size)
db_con = db_accessor.DatabaseAccessor(db_opts)
# Initialize solar panel connection.
panel_metrics = metrics_builder.build_metrics(
args.panel_metrics_workbook, args.panel_metrics_worksheet_name,
args.panel_topic_prefix)
panel_con = panel_accessor.PanelAccessor(args.panel_host, panel_metrics)
# Initialize and run API server.
app = api_server.ApiServer(db_con, panel_con).app()
bottle.run(app=app, host=args.host, port=args.port, debug=args.debug)