# Mark Huang <mlhuang@cs.princeton.edu>
# Copyright (C) 2006 The Trustees of Princeton University
#
-# $Id: PCUs.py,v 1.1 2006/09/06 15:36:07 mlhuang Exp $
-#
from PLC.Faults import *
from PLC.Parameter import Parameter
+from PLC.Filter import Filter
from PLC.Debug import profile
from PLC.Table import Row, Table
-from PLC.NodeNetworks import valid_ip, NodeNetwork, NodeNetworks
+from PLC.Interfaces import valid_ip, Interface, Interfaces
+from PLC.Nodes import Node, Nodes
class PCU(Row):
"""
table_name = 'pcus'
primary_key = 'pcu_id'
+ join_tables = ['pcu_node']
fields = {
'pcu_id': Parameter(int, "PCU identifier"),
'site_id': Parameter(int, "Identifier of site where PCU is located"),
'hostname': Parameter(str, "PCU hostname", max = 254),
'ip': Parameter(str, "PCU IP address", max = 254),
- 'protocol': Parameter(str, "PCU protocol, e.g. ssh, https, telnet", max = 16),
- 'username': Parameter(str, "PCU username", max = 254),
- 'password': Parameter(str, "PCU username", max = 254),
- 'notes': Parameter(str, "Miscellaneous notes", max = 254),
- 'model': Parameter(str, "PCU model string", max = 32),
- 'node_ids': Parameter([int], "List of nodes that this PCU controls", ro = True),
- 'ports': Parameter([int], "List of the port numbers that each node is connected to", ro = True),
+ 'protocol': Parameter(str, "PCU protocol, e.g. ssh, https, telnet", max = 16, nullok = True),
+ 'username': Parameter(str, "PCU username", max = 254, nullok = True),
+ 'password': Parameter(str, "PCU username", max = 254, nullok = True),
+ 'notes': Parameter(str, "Miscellaneous notes", max = 254, nullok = True),
+ 'model': Parameter(str, "PCU model string", max = 32, nullok = True),
+ 'node_ids': Parameter([int], "List of nodes that this PCU controls"),
+ 'ports': Parameter([int], "List of the port numbers that each node is connected to"),
+ 'last_updated': Parameter(int, "Date and time when node entry was created", ro = True),
}
- def __init__(self, api, fields = {}):
- Row.__init__(self, fields)
- self.api = api
-
def validate_ip(self, ip):
if not valid_ip(ip):
raise PLCInvalidArgument, "Invalid IP address " + ip
return ip
- def delete(self, commit = True):
+ validate_last_updated = Row.validate_timestamp
+
+ def update_timestamp(self, col_name, commit = True):
+ """
+ Update col_name field with current time
+ """
+
+ assert 'pcu_id' in self
+ assert self.table_name
+
+ self.api.db.do("UPDATE %s SET %s = CURRENT_TIMESTAMP " % (self.table_name, col_name) + \
+ " where pcu_id = %d" % (self['pcu_id']) )
+ self.sync(commit)
+
+ def update_last_updated(self, commit = True):
+ self.update_timestamp('last_updated', commit)
+
+ def add_node(self, node, port, commit = True):
"""
- Delete existing PCU.
+ Add node to existing PCU.
"""
assert 'pcu_id' in self
+ assert isinstance(node, Node)
+ assert isinstance(port, (int, long))
+ assert 'node_id' in node
+
+ pcu_id = self['pcu_id']
+ node_id = node['node_id']
+
+ if node_id not in self['node_ids'] and port not in self['ports']:
+ self.api.db.do("INSERT INTO pcu_node (pcu_id, node_id, port)" \
+ " VALUES(%(pcu_id)d, %(node_id)d, %(port)d)",
+ locals())
- # Clean up various join tables
- for table in ['pcu_node', 'pcus']:
- self.api.db.do("DELETE FROM " + table +
- " WHERE pcu_id = %(pcu_id)d",
- self)
+ if commit:
+ self.api.db.commit()
- if commit:
- self.api.db.commit()
+ self['node_ids'].append(node_id)
+ self['ports'].append(port)
+
+ def remove_node(self, node, commit = True):
+ """
+ Remove node from existing PCU.
+ """
+
+ assert 'pcu_id' in self
+ assert isinstance(node, Node)
+ assert 'node_id' in node
+
+ pcu_id = self['pcu_id']
+ node_id = node['node_id']
+
+ if node_id in self['node_ids']:
+ i = self['node_ids'].index(node_id)
+ port = self['ports'][i]
+
+ self.api.db.do("DELETE FROM pcu_node" \
+ " WHERE pcu_id = %(pcu_id)d" \
+ " AND node_id = %(node_id)d",
+ locals())
+
+ if commit:
+ self.api.db.commit()
+
+ self['node_ids'].remove(node_id)
+ self['ports'].remove(port)
class PCUs(Table):
"""
database.
"""
- def __init__(self, api, pcu_ids = None):
- self.api = api
-
- # N.B.: Node IDs returned may be deleted.
- sql = "SELECT %s FROM view_pcus" % \
- ", ".join(PCU.fields)
+ def __init__(self, api, pcu_filter = None, columns = None):
+ Table.__init__(self, api, PCU, columns)
- if pcu_ids:
- sql += " WHERE pcu_id IN (%s)" % ", ".join(map(str, pcu_ids))
+ sql = "SELECT %s FROM view_pcus WHERE True" % \
+ ", ".join(self.columns)
- rows = self.api.db.selectall(sql)
+ if pcu_filter is not None:
+ if isinstance(pcu_filter, (list, tuple, set, int, long)):
+ pcu_filter = Filter(PCU.fields, {'pcu_id': pcu_filter})
+ elif isinstance(pcu_filter, dict):
+ pcu_filter = Filter(PCU.fields, pcu_filter)
+ else:
+ raise PLCInvalidArgument, "Wrong pcu filter %r"%pcu_filter
+ sql += " AND (%s) %s" % pcu_filter.sql(api)
- for row in rows:
- self[row['pcu_id']] = pcu = PCU(api, row)
- for aggregate in ['pcu_ids', 'ports']:
- if not pcu.has_key(aggregate) or pcu[aggregate] is None:
- pcu[aggregate] = []
- else:
- pcu[aggregate] = map(int, pcu[aggregate].split(','))
+ self.selectall(sql)
git://git.onelab.eu / plcapi.git / blobdiff