037f93ff86
git-svn-id: svn://svn.cy55.de/Zope3/src/loops/trunk@110 fd906abe-77d9-0310-91a1-e0d9ade77398
122 lines
3.7 KiB
Python
122 lines
3.7 KiB
Python
#
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# Copyright (c) 2004 Helmut Merz helmutm@cy55.de
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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"""
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Definition of the Task class.
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$Id$
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"""
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from zope.interface import implements
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from zope.app.container.ordered import OrderedContainer
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from zope.app import zapi
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from resource import Resource
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from interfaces import ITask
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class Task(OrderedContainer):
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implements(ITask)
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title = u''
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def __init__(self):
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OrderedContainer.__init__(self)
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self._subtasks = []
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self._parentTasks = []
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self._resourceAllocs = {}
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# subtasks:
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def getSubtasks(self, taskTypes=None):
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return tuple(self._subtasks)
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def getParentTasks(self, taskTypes=None):
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return tuple(self._parentTasks)
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def assignSubtask(self, task):
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self._subtasks.append(task)
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task._parentTasks.append(self)
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def createSubtask(self, taskType=None, container=None, name=None):
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container = container or zapi.getParent(self)
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task = Task()
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name = name or task._createTaskName(container)
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container[name] = task
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self.assignSubtask(task)
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return task
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def deassignSubtask(self, task):
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self._subtasks.remove(task)
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task._parentTasks.remove(self)
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# resource allocations:
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def getAllocatedResources(self, allocTypes=None, resTypes=None):
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from sets import Set
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allocs = self._resourceAllocs
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res = Set()
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for at in allocTypes or allocs.keys():
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res.union_update(allocs[at])
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if resTypes:
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res = [ r for r in res if r in resTypes ]
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return tuple(res)
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def allocateResource(self, resource, allocType='standard'):
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allocs = self._resourceAllocs
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rList = allocs.get(allocType, [])
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if resource not in rList:
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rList.append(resource)
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allocs[allocType] = rList
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resource._addAllocation(self, allocType)
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def createAndAllocateResource(self, resourceType=None, allocType='standard',
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container=None, name=None):
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container = container or zapi.getParent(self)
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rClass = resourceType or Resource
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resource = rClass()
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name = name or resource._createResourceName(container)
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container[name] = resource
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self.allocateResource(resource, allocType)
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return resource
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def deallocateResource(self, resource, allocTypes=None):
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allocs = self._resourceAllocs
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for at in allocTypes or allocs.keys():
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if resource in allocs[at]:
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allocs[at].remove(resource)
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resource._removeAllocations(self, allocTypes)
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def allocatedUserIds(self):
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return ()
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def getAllocTypes(self, resource):
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return ('standard',)
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def getAllAllocTypes(self):
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return ('standard',)
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# Helper methods:
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def _createTaskName(self, container=None):
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prefix = 'tsk'
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container = container or zapi.getParent(self)
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last = max([ int(n[len(prefix):]) for n in container.keys() ] or [1])
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return prefix + str(last+1)
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