# Mark Huang <mlhuang@cs.princeton.edu>
# Copyright (C) 2006 The Trustees of Princeton University
#
-# $Id: ConfFiles.py,v 1.4 2006/10/10 21:54:20 mlhuang Exp $
+# $Id: ConfFiles.py,v 1.1 2006/10/20 17:44:09 mlhuang Exp $
#
from PLC.Faults import *
from PLC.Parameter import Parameter
from PLC.Table import Row, Table
+from PLC.Nodes import Node, Nodes
+from PLC.NodeGroups import NodeGroup, NodeGroups
class ConfFile(Row):
"""
'nodegroup_ids': Parameter(int, "List of node groups linked to this file", ro = True),
}
+ def add_node(self, node, commit = True):
+ """
+ Add configuration file to node.
+ """
+
+ assert 'conf_file_id' in self
+ assert isinstance(node, Node)
+ assert 'node_id' in node
+
+ conf_file_id = self['pcu_id']
+ node_id = node['node_id']
+
+ if node_id not in self['node_ids']:
+ self.api.db.do("INSERT INTO conf_file_node (conf_file_id, node_id)" \
+ " VALUES(%(conf_file_id)d, %(node_id)d)",
+ locals())
+
+ if commit:
+ self.api.db.commit()
+
+ self['node_ids'].append(node_id)
+ node['conf_file_ids'].append(conf_file_id)
+
+ def remove_node(self, node, commit = True):
+ """
+ Remove configuration file from node.
+ """
+
+ assert 'conf_file_id' in self
+ assert isinstance(node, Node)
+ assert 'node_id' in node
+
+ conf_file_id = self['conf_file_id']
+ node_id = node['node_id']
+
+ if node_id in self['node_ids']:
+ self.api.db.do("DELETE FROM conf_file_node" \
+ " WHERE conf_file_id = %(conf_file_id)d" \
+ " AND node_id = %(node_id)d",
+ locals())
+
+ if commit:
+ self.api.db.commit()
+
+ self['node_ids'].remove(node_id)
+ node['conf_file_ids'].remove(conf_file_id)
+
+ def add_nodegroup(self, nodegroup, commit = True):
+ """
+ Add configuration file to node group.
+ """
+
+ assert 'conf_file_id' in self
+ assert isinstance(nodegroup, NodeGroup)
+ assert 'nodegroup_id' in nodegroup
+
+ conf_file_id = self['pcu_id']
+ nodegroup_id = nodegroup['nodegroup_id']
+
+ if nodegroup_id not in self['nodegroup_ids']:
+ self.api.db.do("INSERT INTO conf_file_nodegroup (conf_file_id, nodegroup_id)" \
+ " VALUES(%(conf_file_id)d, %(nodegroup_id)d)",
+ locals())
+
+ if commit:
+ self.api.db.commit()
+
+ self['nodegroup_ids'].append(nodegroup_id)
+ nodegroup['conf_file_ids'].append(conf_file_id)
+
+ def remove_nodegroup(self, nodegroup, commit = True):
+ """
+ Remove configuration file from node group.
+ """
+
+ assert 'conf_file_id' in self
+ assert isinstance(nodegroup, NodeGroup)
+ assert 'nodegroup_id' in nodegroup
+
+ conf_file_id = self['conf_file_id']
+ nodegroup_id = nodegroup['nodegroup_id']
+
+ if nodegroup_id in self['nodegroup_ids']:
+ self.api.db.do("DELETE FROM conf_file_nodegroup" \
+ " WHERE conf_file_id = %(conf_file_id)d" \
+ " AND nodegroup_id = %(nodegroup_id)d",
+ locals())
+
+ if commit:
+ self.api.db.commit()
+
+ self['nodegroup_ids'].remove(nodegroup_id)
+ nodegroup['conf_file_ids'].remove(conf_file_id)
+
class ConfFiles(Table):
"""
Representation of the conf_files table in the database.