move cherrypy boilerplate to its own util function

examples/cherry/wsgi.py

@@ -39,6 +39,7 @@
 """
 
 
+import sys
 import logging
 
 from spyne import Application, srpc, ServiceBase, Iterable, UnsignedInteger, \
@@ -47,6 +48,7 @@
 from spyne.protocol.json import JsonDocument
 from spyne.protocol.http import HttpRpc
 from spyne.server.wsgi import WsgiApplication
+from spyne.util.cherry import cherry_graft_and_start
 
 
 class HelloWorldService(ServiceBase):
@@ -93,44 +95,4 @@ def say_hello(name, times):
     # a ZeroMQ (REQ/REP) wrapper.
     wsgi_application = WsgiApplication(application)
 
-    # Use Cherrypy as wsgi server.
-    # Source: https://www.digitalocean.com/community/tutorials/how-to-deploy-python-wsgi-applications-using-a-cherrypy-web-server-behind-nginx
-    import cherrypy
-
-    # Mount the application
-    cherrypy.tree.graft(wsgi_application, "/")
-
-    # Unsubscribe the default server
-    cherrypy.server.unsubscribe()
-
-    # Instantiate a new server object
-    server = cherrypy._cpserver.Server()
-
-    # Configure the server object
-    server.socket_host = "0.0.0.0"
-    server.socket_port = 8080
-    server.thread_pool = 30
-
-    # For SSL Support
-    # server.ssl_module            = 'pyopenssl'
-    # server.ssl_certificate       = 'ssl/certificate.crt'
-    # server.ssl_private_key       = 'ssl/private.key'
-    # server.ssl_certificate_chain = 'ssl/bundle.crt'
-
-    # Subscribe this server
-    server.subscribe()
-
-    # Example for a 2nd server (same steps as above):
-    # Remember to use a different port
-
-    # server2             = cherrypy._cpserver.Server()
-
-    # server2.socket_host = "0.0.0.0"
-    # server2.socket_port = 8081
-    # server2.thread_pool = 30
-    # server2.subscribe()
-
-    # Start the server engine (Option 1 *and* 2)
-
-    cherrypy.engine.start()
-    cherrypy.engine.block()
+    sys.exit(cherry_graft_and_start(wsgi_application))

spyne/util/cherry.py

@@ -0,0 +1,41 @@
+# Use Cherrypy as wsgi server.
+# Source: https://www.digitalocean.com/community/tutorials/how-to-deploy-python-wsgi-applications-using-a-cherrypy-web-server-behind-nginx
+
+import logging
+import cherrypy
+
+
+def cherry_graft_and_start(wsgi_application, host="0.0.0.0", port=8080,
+             num_threads=30, ssl_module=None, cert=None, key=None, cacert=None):
+
+    logging.basicConfig(level=logging.DEBUG)
+    logging.getLogger('spyne.protocol.xml').setLevel(logging.DEBUG)
+
+    # Mount the application
+    cherrypy.tree.graft(wsgi_application, "/")
+
+    # Unsubscribe the default server
+    cherrypy.server.unsubscribe()
+
+    # Instantiate a new server object
+    server = cherrypy._cpserver.Server()
+
+    # Configure the server object
+    server.socket_host = host
+    server.socket_port = port
+    server.thread_pool = num_threads
+
+    # For SSL Support
+    if ssl_module is not None:
+        server.ssl_module            = ssl_module  # eg. 'pyopenssl'
+        server.ssl_certificate       = cert  # eg. 'ssl/certificate.crt'
+        server.ssl_private_key       = key  # eg. 'ssl/private.key'
+        server.ssl_certificate_chain = cacert  # eg. 'ssl/bundle.crt'
+
+    # Subscribe this server
+    server.subscribe()
+
+    # Start the server engine (Option 1 *and* 2)
+    cherrypy.engine.start()
+
+    return cherrypy.engine.block()