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rack.py
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rack.py
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#!/usr/bin/python
from math import ceil
class OverlapException:
pass
class OutOfRackException:
pass
class RackFullException:
pass
unitsize = 43.5
class Rack(object):
def __init__(self, name, attr, units):
self._name = name
self.units = units
self.affinity = "bottom"
self._elements = {}
self.__attributes = attr
## size things
self.width = 445
self.height = unitsize * self.units
def addElement(self, position, element):
if position > self.units or position < 0:
raise OutOfRackException
if self._elements.has_key(position):
raise OverlapException
if element.units > 1:
for i in range(position+1, position + element.units):
if i > self.units or i < 0:
raise OutOfRackException
if self._elements.has_key(i):
raise OverlapException
# all ok, place the element
self._elements[position] = element
for i in range(position + 1, position + element.units):
self._elements[i] = None
def visit(self, visitor):
return visitor.visitRack(self)
def _get_network(self):
ports = 0
for e in self._elements.keys():
if self._elements[e] is not None:
ports += self._elements[e].network
return ports
network = property(_get_network)
def _get_units(self):
return self._units
def _set_units(self, value):
self._units = int(value)
units = property(_get_units, _set_units)
def _get_power(self):
n = 0
for e in self._elements.keys():
if self._elements[e] is not None:
n += self._elements[e].power
return n
power = property(_get_power)
def __iadd__(self, o):
if self.affinity == "bottom":
r = range(0, self.units - o.units + 1)
else:
r = range(self.units - o.units, -1, -1)
for pos in r:
if not self._elements.has_key(pos):
try:
for i in range(pos+1, pos + o.units):
if self._elements.has_key(i):
raise OverlapException
except OverlapException:
continue
# all ok, place element
for i in range(pos+1, pos+o.units):
self._elements[i] = None
self._elements[pos] = o
break
if o not in self._elements.values():
raise RackFullException
return self
def update(self, d):
self.__dict__.update(d)
def _get_depth(self):
if self.__attributes.has_key('depth'):
return self.__attributes['depth']
else:
return 0
def _set_depth(self, value):
self.__attributes['depth'] = value
depth = property(_get_depth, _set_depth)
class RackElement(object):
def __init__(self, units=1, name="rack element", network=1, power=1, cliplock=4, image="", notes=""):
self.units = units
self.name = name
self.network = network
self.power = power
self.cliplock = cliplock
self.image = image
self.notes = notes
self._elements = []
print "units on %s is %s" % (self.__class__.__name__, units)
self._baseline = units * unitsize
print "baseline on %s is %s" % (self.__class__.__name__, self._baseline)
# evil hack
self.gap = 0
def addElement(self, element):
self._elements.append(element)
def __iadd__(self, o):
self._elements.append(o)
return self
def visit(self, visitor):
return visitor.visitRackElement(self)
def _get_units(self):
h = 0
for e in self._elements:
if e.height > h:
h = e.height
if self.__class__.__name__[:5] == "Shelf":
h += self._baseline
u = int(ceil(h / unitsize))
if self.__class__.__name__[:5] != "Shelf":
u += self._units
# evil hack
u -= self.gap
return u
def _set_units(self, units):
self._units = int(units)
self._baseline = self._units * unitsize
units = property(_get_units, _set_units)
def _get_network(self):
return self.__network
def _set_network(self, value):
self.__network = int(value)
network = property(_get_network, _set_network)
def _get_power(self):
return self.__power
def _set_power(self, value):
self.__power = int(value)
power = property(_get_power, _set_power)
def visit(self, visitor):
return getattr(visitor, 'visit%s' % (self.__class__.__name__,))(self)
class Rackmount(RackElement):
def __init__(self, units=1, name="rackmount", network=1, power=1, cliplock=4, image="", notes=""):
RackElement.__init__(self, units, name, network, power, cliplock, image, notes)
def visit(self, visitor):
return visitor.visitRackmount(self)
class APC(RackElement):
def __init__(self, units=1, name="APC", network=1, power=1, cliplock=4, image=""):
RackElement.__init__(self, units, name, network, power, cliplock, image)
def visit(self, visitor):
return visitor.visitAPC(self)
class PatchPanel(RackElement):
def __init__(self, units=1, name = "patch panel", network=0, power=0, cliplock=4):
RackElement.__init__(self, units, name, network, power, cliplock)
def visit(self, visitor):
return visitor.visitPatchPanel(self)
class CableManagement(RackElement):
def __init__(self, units=1, name = "cable management", network=0, power=0, cliplock=4):
RackElement.__init__(self, units, name, network, power, cliplock)
def visit(self, visitor):
return visitor.visitCableManagement(self)
class Gap(RackElement):
def __init__(self, units=1, name="gap"):
RackElement.__init__(self, units, name, 0, 0, 0)
self.units = units
def visit(self, visitor):
return visitor.visitGap(self)
def _get_units(self):
return self._units
def _set_units(self, units):
self._units = int(units)
units = property(_get_units, _set_units)
class Switch(RackElement):
def __init__(self, units=1, name="switch", network=1, power=1, cliplock=4, image="", notes=""):
RackElement.__init__(self,
units,
name,
network,
power,
cliplock,
image,
notes)
def visit(self, visitor):
return visitor.visitSwitch(self)
class Shelf(RackElement):
def __init__(self, units=1, name = "shelf", network=0, power=0, cliplock=4, gap=0, notes=""):
RackElement.__init__(self, units, name, network, power, cliplock, notes)
self._baseline = 43.5
self._bottomline = 0
self._bracketunits = 1
# hack to allow us to tell the builder if the elem above it has
# enough space to allow things to go into its space
self.gap = gap
def visit(self, visitor):
return visitor.visitShelf(self)
def _get_network(self):
n = self.__network
for e in self._elements:
n += e.network
return n
def _set_network(self, value):
self.__network = int(value)
network = property(_get_network, _set_network)
def _get_power(self):
n = self.__power
for e in self._elements:
n += e.power
return n
def _set_power(self, value):
self.__power = int(value)
power = property(_get_power, _set_power)
def _get_gap(self):
return self.__gap
def _set_gap(self, value):
self.__gap = int(value)
gap = property(_get_gap, _set_gap)
# def _get_units(self):
# h = 0
# for e in self._elements:
# if e.height > h:
# h = e.height
# h += self._baseline
# u = int(ceil(h/unitsize))
# u -= self.gap
# return u
# def _set_units(self, units):
# pass
# return
class ShelfThin(Shelf):
def __init__(self, units=1, name="Thin Black Shelf", network=0, power=0, cliplock=4, gap=0, notes=""):
Shelf.__init__(self, units, name, network, power, cliplock, gap, notes)
self._baseline=11
self._bottomline=0
self._bracketunits=0.3
class Shelf1RU(Shelf):
def __init__(self, units=1, name = "1RU shelf", network=0, power=0, cliplock=4, gap=0, notes=""):
Shelf.__init__(self, units, name, network, power, cliplock, gap, notes)
self._baseline = 35
self._bottomline = 10
self._bracketunits = 1
def visit(self, visitor):
return visitor.visitShelf1RU(self)
class Shelf2U(Shelf):
def __init__(self, units=2, name = "thin shelf w/ 30kg rating", network=0, power=0, cliplock=0, gap=0, notes=""):
Shelf.__init__(self, units, name, network, power, cliplock, gap, notes)
self._baseline = 0
self._bottomline = -15
self._bracketunits = 2
def visit(self, visitor):
return visitor.visitShelf2U(self)
class Shelf1a(Shelf):
def __init__(self, units=1, name="1U shelf",network=0,power=0,cliplock=0,gap=0, notes=""):
Shelf.__init__(self, units, name, network, power, cliplock, gap, notes)
self._baseline = 28.5
self._bottomline = 10
self._bracketunits = 1
def visit(self, visitor):
return visitor.visitShelf1a(self)
class ShelfElement(object):
def __init__(self, height=0, width=0, name="shelf element", network=1, power=1, cliplock=0, image="", notes=""):
self.width = width
self.height = height
self._name = name
self.network = network
self.power = power
self.cliplock = cliplock
self.image = image
self.notes = notes
def visit(self, visitor):
return visitor.visitShelfElement(self)
def _get_height(self):
return self.__height
def _set_height(self, value):
self.__height = float(value)
height = property(_get_height, _set_height)
def _get_width(self):
return self.__width
def _set_width(self, value):
self.__width = float(value)
width = property(_get_width, _set_width)
def _get_network(self):
return self.__network
def _set_network(self, value):
self.__network = int(value)
network = property(_get_network, _set_network)
def _get_power(self):
return self.__power
def _set_power(self, value):
self.__power = int(value)
power = property(_get_power, _set_power)
class Box(ShelfElement):
def __init__(self, height=0, width=0, name = "box", network=1, power=1, cliplock=0, image="", notes=""):
ShelfElement.__init__(self, height, width, name, network, power, cliplock, image, notes)
def visit(self, visitor):
return visitor.visitBox(self)
class RackArray:
def __init__(self):
self._elements = []
def addElement(self, rack):
self._elements.append(rack)
def visit(self, visitor):
return visitor.visitRackArray(self)
class RackVisitor:
"""Base class for visitors to inherit from"""
def __init__(self):
pass
def visit(self, ast):
pass
def visitRackArray(self, ast):
pass
def visitRack(self, ast):
pass
def visitRackElement(self, ast):
pass
def visitRackmount(self, ast):
pass
def visitPatchPanel(self, ast):
pass
def visitCableManagement(self, ast):
pass
def visitShelf(self, ast):
pass
def visitShelf1RU(self, ast):
pass
def visitShelf2U(self, ast):
pass
def visitShelfElement(self, ast):
pass
def visitBox(self, ast):
pass