From aa5f09efe1aaeb31820c30e7258ef8d09008ba94 Mon Sep 17 00:00:00 2001
From: Mark Huang <mlhuang@cs.princeton.edu>
Date: Tue, 10 Oct 2006 20:24:06 +0000
Subject: [PATCH] interface to network_types table

---
 PLC/Methods/AddNetworkType.py    | 28 ++++++++++++
 PLC/Methods/DeleteNetworkType.py | 31 ++++++++++++++
 PLC/Methods/GetNetworkTypes.py   | 21 +++++++++
 PLC/NetworkTypes.py              | 73 ++++++++++++++++++++++++++++++++
 4 files changed, 153 insertions(+)
 create mode 100644 PLC/Methods/AddNetworkType.py
 create mode 100644 PLC/Methods/DeleteNetworkType.py
 create mode 100644 PLC/Methods/GetNetworkTypes.py
 create mode 100644 PLC/NetworkTypes.py

diff --git a/PLC/Methods/AddNetworkType.py b/PLC/Methods/AddNetworkType.py
new file mode 100644
index 00000000..eb2e7808
--- /dev/null
+++ b/PLC/Methods/AddNetworkType.py
@@ -0,0 +1,28 @@
+from PLC.Faults import *
+from PLC.Method import Method
+from PLC.Parameter import Parameter, Mixed
+from PLC.NetworkTypes import NetworkType, NetworkTypes
+from PLC.Auth import PasswordAuth
+
+class AddNetworkType(Method):
+    """
+    Adds a new network type.
+
+    Returns 1 if successful, faults otherwise.
+    """
+
+    roles = ['admin']
+
+    accepts = [
+        PasswordAuth(),
+        NetworkType.fields['type']
+        ]
+
+    returns = Parameter(int, '1 if successful')
+
+    def call(self, auth, name):
+        network_type = NetworkType(self.api)
+        network_type['type'] = name
+        network_type.sync()
+
+        return 1
diff --git a/PLC/Methods/DeleteNetworkType.py b/PLC/Methods/DeleteNetworkType.py
new file mode 100644
index 00000000..f96d2a55
--- /dev/null
+++ b/PLC/Methods/DeleteNetworkType.py
@@ -0,0 +1,31 @@
+from PLC.Faults import *
+from PLC.Method import Method
+from PLC.Parameter import Parameter, Mixed
+from PLC.NetworkTypes import NetworkType, NetworkTypes
+from PLC.Auth import PasswordAuth
+
+class DeleteNetworkType(Method):
+    """
+    Deletes a network type.
+
+    Returns 1 if successful, faults otherwise.
+    """
+
+    roles = ['admin']
+
+    accepts = [
+        PasswordAuth(),
+        NetworkType.fields['type']
+        ]
+
+    returns = Parameter(int, '1 if successful')
+
+    def call(self, auth, name):
+        network_types = NetworkTypes(self.api, [name])
+        if not network_types:
+            raise PLCInvalidArgument, "No such network type"
+        network_type = network_types.values()[0]
+
+        network_type.delete()
+
+        return 1
diff --git a/PLC/Methods/GetNetworkTypes.py b/PLC/Methods/GetNetworkTypes.py
new file mode 100644
index 00000000..55af009c
--- /dev/null
+++ b/PLC/Methods/GetNetworkTypes.py
@@ -0,0 +1,21 @@
+from PLC.Faults import *
+from PLC.Method import Method
+from PLC.Parameter import Parameter, Mixed
+from PLC.NetworkTypes import NetworkType, NetworkTypes
+from PLC.Auth import PasswordAuth
+
+class GetNetworkTypes(Method):
+    """
+    Returns a list of all valid network types.
+    """
+
+    roles = ['admin', 'pi', 'user', 'tech']
+
+    accepts = [
+        PasswordAuth()
+        ]
+
+    returns = [NetworkType.fields['type']]
+
+    def call(self, auth):
+        return [network_type['type'] for network_type in NetworkTypes(self.api).values()]
diff --git a/PLC/NetworkTypes.py b/PLC/NetworkTypes.py
new file mode 100644
index 00000000..609b16eb
--- /dev/null
+++ b/PLC/NetworkTypes.py
@@ -0,0 +1,73 @@
+#
+# Functions for interacting with the network_types table in the database
+#
+# Mark Huang <mlhuang@cs.princeton.edu>
+# Copyright (C) 2006 The Trustees of Princeton University
+#
+# $Id: NetworkTypes.py,v 1.2 2006/10/06 18:19:41 mlhuang Exp $
+#
+
+from PLC.Faults import *
+from PLC.Parameter import Parameter
+from PLC.Table import Row, Table
+
+class NetworkType(Row):
+    """
+    Representation of a row in the network_types table. To use,
+    instantiate with a dict of values.
+    """
+
+    table_name = 'network_types'
+    primary_key = 'type'
+    fields = {
+        'type': Parameter(str, "Network type", max = 20),
+        }
+
+    def __init__(self, api, fields = {}):
+        Row.__init__(self, fields)
+        self.api = api
+
+    def validate_type(self, name):
+	# Remove leading and trailing spaces
+	name = name.strip()
+
+	# Make sure name is not blank after we removed the spaces
+        if not name:
+            raise PLCInvalidArgument, "Network type must be specified"
+	
+	# Make sure network type does not alredy exist
+	conflicts = NetworkTypes(self.api, [name])
+        if conflicts:
+            raise PLCInvalidArgument, "Network type name already in use"
+
+	return name
+
+    def delete(self, commit = True):
+        assert 'type' in self
+
+        # Clean up miscellaneous join tables
+        for table in ['nodenetworks', 'network_types']:
+            self.api.db.do("DELETE FROM " + table + \
+                           " WHERE type = %(type)s",
+                           self)
+
+        if commit:
+            self.api.db.commit()
+        
+class NetworkTypes(Table):
+    """
+    Representation of the network_types table in the database.
+    """
+
+    def __init__(self, api, names = None):
+        sql = "SELECT %s FROM network_types" % \
+              ", ".join(NetworkType.fields)
+        
+        if names:
+            # Separate the list into integers and strings
+            sql += " WHERE type IN (%s)" % ", ".join(api.db.quote(names))
+
+        rows = api.db.selectall(sql)
+
+        for row in rows:
+            self[row['type']] = NetworkType(api, row)
-- 
2.47.0