Refactor message classes

Message classes allow dynamic attribute access to message fields. Childs
get exposed through a dedicated class by attributes too. Message type
fields and childs have types that get enforces. None type is allowed
too while transitioning.

docs/api/mitel_ommclient2.messages.rst

@@ -20,6 +20,14 @@ mitel\_ommclient2.messages.getppdev module
    :undoc-members:
    :show-inheritance:
 
+mitel\_ommclient2.messages.getppuser module
+-------------------------------------------
+
+.. automodule:: mitel_ommclient2.messages.getppuser
+  :members:
+  :undoc-members:
+  :show-inheritance:
+
 mitel\_ommclient2.messages.open module
 --------------------------------------
 

docs/manual/connection.rst

@@ -15,7 +15,7 @@ to establish a transport to the API.
 
     import mitel_ommclient2
 
-    conn = mitel_ommclient2..connection.Connection("omm.local")
+    conn = mitel_ommclient2.connection.Connection("omm.local")
 
 To actually connect to the OMM, you need to call :func:`mitel_ommclient2.connection.Connection.connect`.
 
@@ -45,8 +45,8 @@ You hand over a Request object and receive a response object.
 
 .. code-block:: python
 
-    >>> request = mitel_ommclient2.messages.Ping()
+    >>> m = mitel_ommclient2.messages.Ping()
-    >>> r = conn.request(request)
+    >>> r = conn.request(m)
     >>> r.name
     'PingResp'
 

docs/manual/messages.rst

@@ -5,14 +5,13 @@ The API consists of three main message types: request, response and event. They
 are represented by :class:`mitel_ommclient2.messages.Request`, :class:`mitel_ommclient2.messages.Response`
 and events aren't supported yet.
 
-There are several subclasses for each messages type, but they are just just overlays
+There are several subclasses for each messages type, which provide a conveinient
-to provide a conveinient interface to message content using attributes.
+interface to message content using attributes.
 
-Each message provides three attributes that define the central interfaces:
+For each message you can access each field directly as class attributes.
-
+There are two special attributes:
-  * name
+  * name: returns the message name
-  * attrs
+  * childs: allowes you to access childs by the child name as class attributes
-  * childs
 
 Using messages
 --------------
@@ -27,27 +26,20 @@ and hand it over to :func:`mitel_ommclient2.client.OMMClient2.request` or
 
     my_time = int(time.time())
 
-    request = mitel_ommclient2.messages.Ping(timeStamp=my_time)
+    m = mitel_ommclient2.messages.Ping()
-    r = c.request(request)
+    m.timeStamp = my_time
+    r = c.request(m)
 
     ping = r.timeStamp - my_time
 
-Crafting your own messages
+A more complex example
---------------------------
+----------------------
 
-It some cases your message class isn't implemented yet. Then you can craft the
+This demonstrates how to access message childs.
-message yourself.
 
 .. code-block:: python
 
-    import time
+    m = messages.GetAccount()
-
+    m.id = id
-    my_time = int(time.time())
+    r = self.connection.request(m)
-
+    return r.childs.account[0]
-    request = mitel_ommclient2.messages.Request("Ping")
-    request.attrs = {
-      "timeStamp": my_time,
-    }
-    r = c.request(request)
-
-    ping = r.attrs["timeStamp"] - my_time

mitel_ommclient2/client.py

@@ -44,7 +44,11 @@ class OMMClient2:
         self.connection.connect()
 
         # Login
-        r = self.connection.request(messages.Open(self._username, self._password, UserDeviceSyncClient=self._ommsync))
+        m = messages.Open()
+        m.username = self._username
+        m.password = self._password
+        m.UserDeviceSyncClient = self._ommsync
+        r = self.connection.request(m)
         r.raise_on_error()
 
     def get_account(self, id):
@@ -54,11 +58,13 @@ class OMMClient2:
             :param id: User id
         """
 
-        r = self.connection.request(messages.GetAccount(id))
+        m = messages.GetAccount()
+        m.id = id
+        r = self.connection.request(m)
         r.raise_on_error()
-        if r.account is None:
+        if r.childs.account is None:
             return None
-        return r.account[0]
+        return r.childs.account[0]
 
     def get_device(self, ppn):
         """
@@ -66,11 +72,14 @@ class OMMClient2:
 
             :param ppn: Device id
         """
-        r = self.connection.request(messages.GetPPDev(ppn))
+
+        m = messages.GetPPDev()
+        m.ppn = ppn
+        r = self.connection.request(m)
         r.raise_on_error()
-        if r.pp is None:
+        if r.childs.pp is None:
             return None
-        return r.pp[0]
+        return r.childs.pp[0]
 
     def get_devices(self):
         """
@@ -78,7 +87,10 @@ class OMMClient2:
         """
         next_ppn = 0
         while True:
-            r = self.connection.request(messages.GetPPDev(next_ppn, maxRecords=20))
+            m = messages.GetPPDev()
+            m.ppn = next_ppn
+            m.maxRecords = 20
+            r = self.connection.request(m)
             try:
                 r.raise_on_error()
             except exceptions.ENoEnt:
@@ -86,7 +98,7 @@ class OMMClient2:
                 break
 
             # Output all found devices
-            for pp in r.pp:
+            for pp in r.childs.pp:
                 yield pp
 
             # Determine next possible ppn
@@ -98,11 +110,13 @@ class OMMClient2:
 
             :param uid: User id
         """
-        r = self.connection.request(messages.GetPPUser(uid))
+        m = messages.GetPPUser()
+        m.uid = uid
+        r = self.connection.request(m)
         r.raise_on_error()
-        if r.user is None:
+        if r.childs.user is None:
             return None
-        return r.user[0]
+        return r.childs.user[0]
 
     def get_users(self):
         """
@@ -110,7 +124,10 @@ class OMMClient2:
         """
         next_uid = 0
         while True:
-            r = self.connection.request(messages.GetPPUser(next_uid, maxRecords=20))
+            m = messages.GetPPUser()
+            m.uid = next_uid
+            m.maxRecords = 20
+            r = self.connection.request(m)
             try:
                 r.raise_on_error()
             except exceptions.ENoEnt:
@@ -118,7 +135,7 @@ class OMMClient2:
                 break
 
             # Output all found devices
-            for user in r.user:
+            for user in r.childs.user:
                 yield user
 
             # Determine next possible ppn

mitel_ommclient2/messages/__init__.py

@@ -5,45 +5,98 @@ from xml.dom.minidom import getDOMImplementation, parseString
 from ..exceptions import exception_classes, OMResponseException
 
 
-class Request:
+class Message:
     """
-        Request message class
+        Base message class
-
-        :param name: Name of the message
-        :param seq: Unique sequence number to associate responses
-
-        Usage::
-            >>> req = Request("Ping")
-    """
-
-    def __init__(self, name, seq=None):
-        self.name = name
-        self.attrs = {}
-        self.childs = {}
-
-        if seq is not None:
-            self.attrs["seq"] = seq
-
-    @property
-    def seq(self):
-        return self.attrs.get("seq")
-
-    @seq.setter
-    def seq(self, seq):
-        self.attrs["seq"] = seq
-
-class Response:
-    """
-        Response message class
 
         :param name: Name of the message
         :param attrs: Message attributes
         :param childs: Message children
     """
-    def __init__(self, name, attrs={}, childs={}):
+
+    # Fields defined by the base type class
+    BASE_FIELDS = {}
+    # Fields defined by subclasses
+    FIELDS = {}
+    # Child types
+    CHILDS = {}
+    # Fields dicts consist of the field name as name and the field type as value
+    # Use None if the field type is unknown, any type is allowed then
+
+
+    class Childs:
+        """
+            Contains message childs
+        """
+
+        CHILDS = {}
+
+        def __init__(self, child_types, child_dict):
+            self.CHILDS = child_types
+            self._child_dict = child_dict
+
+        def __getattr__(self, name):
+            if name in self.CHILDS.keys():
+                return self._child_dict.get(name)
+            else:
+                raise AttributeError()
+
+        def __setattr__(self, name, value):
+            if name in self.CHILDS.keys():
+                if self.CHILDS[name] is not None and type(value) != self.CHILDS[name]:
+                    raise TypeError()
+                self._child_dict[name] = value
+            else:
+                object.__setattr__(self, name, value)
+
+
+    def __init__(self, name=None, attrs={}, childs={}):
         self.name = name
-        self.attrs = attrs
+        if not self.name:
-        self.childs = childs
+            self.name = self.__class__.__name__
+        self._attrs = attrs
+        self._childs = childs
+        self.childs = self.Childs(self.CHILDS, self._childs)
+
+    def __getattr__(self, name):
+        fields = self.FIELDS | self.BASE_FIELDS
+        if name in fields.keys():
+            return self._attrs.get(name)
+        else:
+            raise AttributeError()
+
+    def __setattr__(self, name, value):
+        fields = self.FIELDS | self.BASE_FIELDS
+        if name in fields.keys():
+            if fields[name] is not None and type(value) != fields[name]:
+                raise TypeError()
+            self._attrs[name] = value
+        else:
+            object.__setattr__(self, name, value)
+
+
+class Request(Message):
+    """
+        Request message type class
+    """
+
+    BASE_FIELDS = {
+        "seq": int,
+    }
+
+
+class Response(Message):
+    """
+        Response message type class
+    """
+
+    BASE_FIELDS = {
+        "seq": int,
+        "errCode": None,
+        "info": None,
+        "bad": None,
+        "maxLen": None,
+    }
 
     def raise_on_error(self):
         """
@@ -62,25 +115,17 @@ class Response:
         if self.errCode is not None:
             raise exception_classes.get(self.errCode, OMResponseException)(response=self)
 
-    @property
-    def seq(self):
-        return int(self.attrs.get("seq"))
 
-    @property
+REQUEST_TYPES = {}
-    def errCode(self):
+RESPONSE_TYPES = {}
-        return self.attrs.get("errCode")
 
-    @property
+def request_type(c):
-    def info(self):
+    REQUEST_TYPES[c.__name__] = c
-        return self.attrs.get("info")
+    return c
 
-    @property
+def response_type(c):
-    def bad(self):
+    RESPONSE_TYPES[c.__name__] = c
-        return self.attrs.get("bad")
+    return c
-
-    @property
-    def maxLen(self):
-        return self.attrs.get("maxLen")
 
 from .getaccount import GetAccount, GetAccountResp
 from .getppdev import GetPPDev, GetPPDevResp
@@ -96,11 +141,11 @@ def construct(request):
     message = impl.createDocument(None, request.name, None)
     root = message.documentElement
 
-    for k, v in request.attrs.items():
+    for k, v in request._attrs.items():
         root.setAttribute(str(k), str(v))
 
 
-    for k, v in request.childs.items():
+    for k, v in request._childs.items():
         child = message.createElement(k)
         if v is not None:
             for c_k, c_v in v.items():
@@ -108,18 +153,6 @@ def construct(request):
         root.appendChild(child)
     return root.toxml()
 
-def _response_type_by_name(name):
-    response_types = [
-        GetAccountResp,
-        GetPPDevResp,
-        GetPPUserResp,
-        PingResp,
-    ]
-
-    response_types_dict = {r.__name__: r for r in response_types}
-
-    return response_types_dict.get(name, Response)
-
 def parse(message):
     message = parseString(message)
     root = message.documentElement
@@ -128,8 +161,14 @@ def parse(message):
     attrs = {}
     childs = {}
 
+    response_type = RESPONSE_TYPES.get(name)
+    fields = response_type.FIELDS | response_type.BASE_FIELDS
+
     for i in range(0, root.attributes.length):
         item = root.attributes.item(i)
+        if fields.get(item.name) is not None:
+            attrs[item.name] = fields[item.name](item.value)
+        else:
             attrs[item.name] = item.value
 
     child = root.firstChild
@@ -148,4 +187,4 @@ def parse(message):
         child = child.nextSibling
 
 
-    return _response_type_by_name(name)(name, attrs, childs)
+    return response_type(name, attrs, childs)

mitel_ommclient2/messages/getaccount.py

@@ -1,27 +1,18 @@
 #!/usr/bin/env python3
 
-from . import Request, Response
+from . import Request, Response, request_type, response_type
 
 
+@request_type
 class GetAccount(Request):
-    def __init__(self, id, maxRecords=None, **kwargs):
+    FIELDS = {
-        super().__init__("GetAccount", **kwargs)
+        "id": int,
-
+        "maxRecords": int,
-        self.attrs["id"] = id
+    }
-
-        if maxRecords is not None:
-            self.attrs["maxRecords"] = maxRecords
-
-    @property
-    def id(self):
-        return self.attrs.get("id")
-
-    @property
-    def maxRecords(self):
-        return self.attrs.get("maxRecords")
 
 
+@response_type
 class GetAccountResp(Response):
-    @property
+    CHILDS = {
-    def account(self):
+        "account": None,
-        return self.childs.get("account")
+    }

mitel_ommclient2/messages/getppdev.py

@@ -1,27 +1,18 @@
 #!/usr/bin/env python3
 
-from . import Request, Response
+from . import Request, Response, request_type, response_type
 
 
+@request_type
 class GetPPDev(Request):
-    def __init__(self, ppn, maxRecords=None, **kwargs):
+    FIELDS = {
-        super().__init__("GetPPDev", **kwargs)
+        "ppn": int,
-
+        "maxRecords": int,
-        self.attrs["ppn"] = ppn
+    }
-
-        if maxRecords is not None:
-            self.attrs["maxRecords"] = maxRecords
-
-    @property
-    def ppn(self):
-        return self.attrs.get("ppn")
-
-    @property
-    def maxRecords(self):
-        return self.attrs.get("maxRecords")
 
 
+@response_type
 class GetPPDevResp(Response):
-    @property
+    CHILDS = {
-    def pp(self):
+        "pp": None,
-        return self.childs.get("pp")
+    }

mitel_ommclient2/messages/getppuser.py

@@ -1,27 +1,18 @@
 #!/usr/bin/env python3
 
-from . import Request, Response
+from . import Request, Response, request_type, response_type
 
 
+@request_type
 class GetPPUser(Request):
-    def __init__(self, uid, maxRecords=None, **kwargs):
+    FIELDS = {
-        super().__init__("GetPPUser", **kwargs)
+        "uid": int,
-
+        "maxRecords": int,
-        self.attrs["uid"] = uid
+    }
-
-        if maxRecords is not None:
-            self.attrs["maxRecords"] = maxRecords
-
-    @property
-    def ppn(self):
-        return self.attrs.get("ppn")
-
-    @property
-    def maxRecords(self):
-        return self.attrs.get("maxRecords")
 
 
+@response_type
 class GetPPUserResp(Response):
-    @property
+    CHILDS = {
-    def user(self):
+        "user": None,
-        return self.childs.get("user")
+    }

mitel_ommclient2/messages/open.py

@@ -1,55 +1,23 @@
 #!/usr/bin/env python3
 
-from . import Request, Response
+from . import Request, Response, request_type, response_type
 
 
+@request_type
 class Open(Request):
-    """
+    FIELDS = {
-        Authenticate Message
+        "username": None,
+        "password": None,
+        "UserDeviceSyncClient": None,
+    }
 
-        Needs to be the first message on a new connection.
-
-        :param username: Username
-        :param password: Password
-        :param UserDeviceSyncClient: If True login as OMM-Sync client. Some operations in OMM-Sync mode might lead to destroy DECT paring.
-    """
-    def __init__(self, username, password, UserDeviceSyncClient=False, **kwargs):
-        super().__init__("Open", **kwargs)
-
-        self.attrs["username"] = username
-        self.attrs["password"] = password
-        if UserDeviceSyncClient:
-            self.attrs["UserDeviceSyncClient"] = "true"
-
-    @property
-    def username(self):
-        return self.attrs.get("username")
-
-    @property
-    def password(self):
-        return self.attrs.get("password")
-
-    @property
-    def UserDeviceSyncClient(self):
-        return self.attrs.get("UserDeviceSyncClient")
 
+@response_type
 class OpenResp(Response):
-    @property
+    FIELDS = {
-    def protocolVersion(self):
+        "protocolVersion": None,
-        return self.attrs.get("protocolVersion")
+        "minPPSwVersion1": None,
-
+        "minPPSwVersion2": None,
-    @property
+        "ommStbState": None,
-    def minPPSwVersion1(self):
+        "publicKey": None,
-        return self.attrs.get("minPPSwVersion1")
+    }
-
-    @property
-    def minPPSwVersion2(self):
-        return self.attrs.get("minPPSwVersion2")
-
-    @property
-    def ommStbState(self):
-        return self.attrs.get("ommStbState")
-
-    @property
-    def publicKey(self):
-        return self.attrs.get("publicKey")

mitel_ommclient2/messages/ping.py

@@ -1,20 +1,17 @@
 #!/usr/bin/env python3
 
-from . import Request, Response
+from . import Request, Response, request_type, response_type
 
 
+@request_type
 class Ping(Request):
-    def __init__(self, timeStamp=None, **kwargs):
+    FIELDS = {
-        super().__init__("Ping", **kwargs)
+        "timeStamp": int,
+    }
 
-        if timeStamp is not None:
-            self.attrs["timeStamp"] = timeStamp
-
-    @property
-    def timeStamp(self):
-        return self.attrs.get("timeStamp")
 
+@response_type
 class PingResp(Response):
-    @property
+    FIELDS = {
-    def timeStamp(self):
+        "timeStamp": int,
-        return self.attrs.get("timeStamp")
+    }