.. Copyright 2018 Huawei Technologies Co., Ltd.
SO - Architecture
-===============
+=================
SO Functional View
---------------------
+------------------
.. image:: ../images/SO_Architecture_1.png
**API Handler**
RESTful interface to northbound clients
-
- * Handle service-level and infrastructure (VNF & network) requests
-
+
+* Handle service-level and infrastructure (VNF & network) requests
+
Service-agnostic APIs
* “Service Instantiation API”
* Use SO Catalog to map input requests to BPMN flows
* Dynamic lookup based on service-model + action
* Input data forwarded to BPMN flow
-
+
Track open and completed requests via SO Request DB
Multiple API-H modules may support different APIs
* Request and configure network resources via SDN-C
* Manage cloud resources via PO (OpenStack)
* Update inventory via A&AI
-
+
Perform error handling/rollback
**Resource Adapters**
* Hides the details of complex interfaces (e.g. OpenStack APIs)
* Expose interfaces to BPMN flows as SOAP or REST APIs
* Support synchronous and asynchronous operations
-
+
Provided as part of SO platform for use by all BPMN flows
Use SO Catalog to map resource requests to a recipe/template
* Merge input parameters with templates at run-time
**Data Stores**
-
+
Request DB
* Tracks open and completed requests
-
+
SO Catalog
* SO view of the SDC Catalog
* service and resource models, recipes, and templates
Camunda DB
* Maintain state for BPMN flows
* Supports multiple active engines
-
+
**SDC Distribution Client**
Receive updated service models from SDC
* Event-bus notifications when new models available
* HTTP retrieval of models (TOSCA) and artifacts (Heat)
-
+
Receive distributions as TOSCA models
Populate SO Catalog
Tomcat
MySQL/MariaDB
Openstack Java SDK (“woorea”)
-
-
-
-
-
-
-
-