refactor: API now rely on gnpy function without re-implementation

Change-Id: Ib71f62f74eaa9fd87606a977f1f2c830b71668d9

samples/rest_example.py

@@ -0,0 +1,64 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+
+'''
+gnpy.tools.rest_example
+=======================
+
+GNPy as a rest API example
+'''
+
+import logging
+from logging.handlers import RotatingFileHandler
+
+import werkzeug
+from flask_injector import FlaskInjector
+
+from gnpyapi.core import app
+from gnpyapi.core.exception.equipment_error import EquipmentError
+from gnpyapi.core.exception.exception_handler import bad_request_handler, common_error_handler
+from gnpyapi.core.exception.path_computation_error import PathComputationError
+from gnpyapi.core.exception.topology_error import TopologyError
+
+_logger = logging.getLogger(__name__)
+
+
+def _init_logger():
+    handler = RotatingFileHandler('api.log', maxBytes=1024 * 1024, backupCount=5, encoding='utf-8')
+    ch = logging.StreamHandler()
+    logging.basicConfig(level=logging.INFO, handlers=[handler, ch],
+                        format="%(asctime)s %(levelname)s %(name)s(%(lineno)s) [%(threadName)s - %(thread)d] - %("
+                               "message)s")
+
+
+def _init_app():
+    app.register_error_handler(KeyError, bad_request_handler)
+    app.register_error_handler(TypeError, bad_request_handler)
+    app.register_error_handler(ValueError, bad_request_handler)
+    # app.register_error_handler(exceptions.ConfigurationError, bad_request_handler)
+    # app.register_error_handler(exceptions.DisjunctionError, bad_request_handler)
+    # app.register_error_handler(exceptions.EquipmentConfigError, bad_request_handler)
+    # app.register_error_handler(exceptions.NetworkTopologyError, bad_request_handler)
+    # app.register_error_handler(exceptions.ServiceError, bad_request_handler)
+    # app.register_error_handler(exceptions.SpectrumError, bad_request_handler)
+    # app.register_error_handler(exceptions.ParametersError, bad_request_handler)
+    app.register_error_handler(AssertionError, bad_request_handler)
+    # app.register_error_handler(InternalServerError, common_error_handler)
+    app.register_error_handler(TopologyError, bad_request_handler)
+    app.register_error_handler(EquipmentError, bad_request_handler)
+
+    app.register_error_handler(PathComputationError, bad_request_handler)
+    for error_code in werkzeug.exceptions.default_exceptions:
+        app.register_error_handler(error_code, common_error_handler)
+
+
+def main():
+    _init_logger()
+    _init_app()
+    FlaskInjector(app=app)
+
+    app.run(host='0.0.0.0', port=8080)
+
+
+if __name__ == '__main__':
+    main()