|
|
| ''' |
| Created on ١٩/٠٣/٢٠١٠ |
| |
| @Created by: Muhammad Altabba |
| ''' |
| from ...Controllers.Transducers.StatesGraph import StatesGraph; |
| from ...Controllers.Transducers.State import State; |
| from ...Controllers.Transducers.TransitionCondition import TransitionCondition; |
| from ...Controllers.Transducers.TransitionAction import TransitionAction; |
| from ...Controllers.Transducers.Transition import Transition; |
| from ...Controllers.Transducers.TransitionActions import TransitionActions; |
|
|
|
|
| class TransducersXmlLoader(object): |
| """ |
| # PyUML: Do not remove this line! # XMI_ID:_qzkznY35Ed-gg8GOK1TmhA |
| """ |
| ''' |
| Load Premature Tagging Graph from Xml File into Memory. |
| ''' |
| |
| __xmlFileName = '' |
| StatesGraphs = []; |
|
|
| def __init__(self, xmlFileName): |
| ''' |
| Constructor |
| ''' |
| from xml.dom import minidom; |
| self.__xmlFileName = xmlFileName; |
| xmldoc = minidom.parse(xmlFileName); |
| |
| self.StatesGraphs = []; |
| for xmlrule in xmldoc.getElementsByTagName('Rule'): |
| |
| statesGraph = StatesGraph(); |
| self.StatesGraphs.append(statesGraph); |
| for xmlstate in xmlrule.childNodes: |
| if xmlstate.nodeType != 1: |
| continue; |
| id = xmlstate.attributes['id'].value; |
| state = None; |
| if id not in statesGraph.States.keys(): |
| state = State(id); |
| else: |
| state = statesGraph.States[id]; |
| statesGraph.States[state.Id] = state; |
| if 'isStart' in xmlstate.attributes.keys() and xmlstate.attributes['isStart'].value == 'True': |
| state.IsStart = True; |
| if statesGraph.Start != None: |
| raise Exception('A Graph State can only have one start'); |
| statesGraph.Start = state; |
| if 'isEnd' in xmlstate.attributes.keys() and xmlstate.attributes['isEnd'].value == 'True': |
| state.IsEnd = True; |
| for xmlEndActions in xmlstate.childNodes: |
| if xmlEndActions.nodeType != 1: |
| continue; |
| |
| |
| for xmlStateChildNodes in xmlstate.childNodes: |
| if xmlStateChildNodes.nodeType != 1: |
| continue; |
| if xmlStateChildNodes.nodeName == "Transition": |
| nextStateId = xmlStateChildNodes.attributes['next_state_id'].value; |
| if nextStateId not in statesGraph.States.keys(): |
| nextState = State(nextStateId); |
| statesGraph.States[nextStateId] = nextState; |
| else: |
| nextState = statesGraph.States[nextStateId]; |
| |
| conditionsList = []; |
| actionsList = []; |
| consume = int(xmlStateChildNodes.attributes['consume'].value); |
| |
| |
| |
| transitionActions = None; |
| for xmlConditionsActions in xmlStateChildNodes.childNodes: |
| if xmlConditionsActions.nodeType != 1: |
| continue; |
| if xmlConditionsActions.nodeName == 'Conditions': |
| for xmlCondition in xmlConditionsActions.childNodes: |
| if xmlCondition.nodeType != 1: |
| continue; |
| transitionCondition = TransitionCondition(xmlCondition.attributes['type'].value\ |
| , xmlCondition.attributes['attribute_name'].value\ |
| , xmlCondition.attributes['value'].value); |
| conditionsList.append(transitionCondition); |
| |
| if xmlConditionsActions.nodeName == 'Actions': |
| if(transitionActions!=None): |
| raise Exception('Multiple entries for Actions is not allowed!!!'); |
| |
| for xmlAction in xmlConditionsActions.childNodes: |
| if xmlAction.nodeType != 1: |
| continue; |
| transitionAction = TransitionAction(xmlAction.attributes['attribute_name'].value, \ |
| xmlAction.attributes['type'].value, \ |
| xmlAction.attributes['value'].value, \ |
| int(xmlAction.attributes['on_relative_index'].value)); |
| actionsList.append(transitionAction); |
| |
| transitionActions = TransitionActions(actionsList, []); |
| if(transitionActions == None): |
| transitionActions = TransitionActions([], []); |
| state.Transitions.append(Transition(conditionsList, transitionActions, nextState, consume)); |
|
|
|
|
