merge changes from HEAD

[plcapi.git] / PLC / Nodes.py

diff --git a/PLC/Nodes.py b/PLC/Nodes.py
index 4a8f89a..4596870 100644 (file)
--- a/PLC/Nodes.py
+++ b/PLC/Nodes.py
@@ -4,7 +4,7 @@
 # Mark Huang <mlhuang@cs.princeton.edu>
 # Copyright (C) 2006 The Trustees of Princeton University
 #
-# $Id: Nodes.py,v 1.17 2006/11/08 17:34:07 thierry Exp $
+# $Id: Nodes.py,v 1.34 2007/07/12 17:55:02 tmack Exp $
 #
 
 from types import StringTypes
@@ -17,6 +17,7 @@ from PLC.Debug import profile
 from PLC.Table import Row, Table
 from PLC.NodeNetworks import NodeNetwork, NodeNetworks
 from PLC.BootStates import BootStates
+#from PLC.Slices import Slice, Slices
 
 def valid_hostname(hostname):
     # 1. Each part begins and ends with a letter or number.
@@ -38,7 +39,7 @@ class Node(Row):
 
     table_name = 'nodes'
     primary_key = 'node_id'
-    join_tables = ['nodegroup_node', 'conf_file_node', 'nodenetworks', 'pcu_node', 'slice_node', 'slice_attribute', 'node_session']
+    join_tables = ['nodegroup_node', 'conf_file_node', 'nodenetworks', 'pcu_node', 'slice_node', 'slice_attribute', 'node_session', 'peer_node', 'node_slice_whitelist']
     fields = {
         'node_id': Parameter(int, "Node identifier"),
         'hostname': Parameter(str, "Fully qualified hostname", max = 255),
@@ -50,6 +51,7 @@ class Node(Row):
         'ssh_rsa_key': Parameter(str, "Last known SSH host key", max = 1024),
         'date_created': Parameter(int, "Date and time when node entry was created", ro = True),
         'last_updated': Parameter(int, "Date and time when node entry was created", ro = True),
+       'last_contact': Parameter(int, "Date and time when node last contacted plc", ro = True), 
         'key': Parameter(str, "(Admin only) Node key", max = 256),
         'session': Parameter(str, "(Admin only) Node session value", max = 256, ro = True),
         'nodenetwork_ids': Parameter([int], "List of network interfaces that this node has"),
@@ -57,27 +59,58 @@ class Node(Row):
         'conf_file_ids': Parameter([int], "List of configuration files specific to this node"),
         # 'root_person_ids': Parameter([int], "(Admin only) List of people who have root access to this node"),
         'slice_ids': Parameter([int], "List of slices on this node"),
+       'slice_ids_whitelist': Parameter([int], "List of slices allowed on this node"),
         'pcu_ids': Parameter([int], "List of PCUs that control this node"),
         'ports': Parameter([int], "List of PCU ports that this node is connected to"),
+        'peer_id': Parameter(int, "Peer to which this node belongs", nullok = True),
+        'peer_node_id': Parameter(int, "Foreign node identifier at peer", nullok = True),
         }
 
+    # for Cache
+    class_key = 'hostname'
+    foreign_fields = ['boot_state','model','version']
+    # forget about these ones, they are read-only anyway
+    # handling them causes Cache to re-sync all over again 
+    # 'date_created','last_updated'
+    foreign_xrefs = [
+       # in this case, we dont need the 'table' but Cache will look it up, so...
+        {'field' : 'site_id' , 'class' : 'Site' , 'table' : 'unused-on-direct-refs' } ,
+       ]
+
     def validate_hostname(self, hostname):
         if not valid_hostname(hostname):
             raise PLCInvalidArgument, "Invalid hostname"
 
         conflicts = Nodes(self.api, [hostname])
-        for node_id, node in conflicts.iteritems():
-            if 'node_id' not in self or self['node_id'] != node_id:
+        for node in conflicts:
+            if 'node_id' not in self or self['node_id'] != node['node_id']:
                 raise PLCInvalidArgument, "Hostname already in use"
 
         return hostname
 
     def validate_boot_state(self, boot_state):
-        if boot_state not in BootStates(self.api):
+        boot_states = [row['boot_state'] for row in BootStates(self.api)]
+        if boot_state not in boot_states:
             raise PLCInvalidArgument, "Invalid boot state"
 
         return boot_state
 
+    validate_date_created = Row.validate_timestamp
+    validate_last_updated = Row.validate_timestamp
+    validate_last_contact = Row.validate_timestamp
+
+    def update_last_contact(self, commit = True):
+       """
+       Update last_contact field with current time
+       """
+       
+       assert 'node_id' in self
+       assert self.table_name
+
+       self.api.db.do("UPDATE %s SET last_contact = CURRENT_TIMESTAMP " % (self.table_name) + \
+                      " where node_id = %d" % ( self['node_id']) )
+       self.sync(commit)
+
     def delete(self, commit = True):
         """
         Delete existing node.
@@ -94,20 +127,21 @@ class Node(Row):
         self['deleted'] = True
         self.sync(commit)
 
+
 class Nodes(Table):
     """
     Representation of row(s) from the nodes table in the
     database.
     """
 
-    def __init__(self, api, node_filter = None):
-        Table.__init__(self, api, Node)
+    def __init__(self, api, node_filter = None, columns = None):
+        Table.__init__(self, api, Node, columns)
 
         sql = "SELECT %s FROM view_nodes WHERE deleted IS False" % \
-              ", ".join(Node.fields)
+              ", ".join(self.columns)
 
         if node_filter is not None:
-            if isinstance(node_filter, list):
+            if isinstance(node_filter, (list, tuple, set)):
                 # Separate the list into integers and strings
                 ints = filter(lambda x: isinstance(x, (int, long)), node_filter)
                 strs = filter(lambda x: isinstance(x, StringTypes), node_filter)