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trustmodel.py
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trustmodel.py
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# TRUSTMODEL DATA STRUCTURE
#
#
#
#
# Dictionnaries
agents = {}
types = {}
tags = set()
# Agent
# Agent operating in the trust model.
# They are linked together by relations.
class Agent:
def __init__(self, name):
if name in agents: raise Exception("Agent already declared")
self.name = name
self.relations = []
def declaredAgent(name):
if name in agents: return True
else: return False
def declareAgent(name):
agent = Agent(name)
agents[name] = agent
def getAgent(name):
return agents[name]
# Type
# Types caracterize trust relations.
# Types may have dependencies between them.
class Type:
def __init__(self, name):
if name in types: raise Exception("Type already declared")
self.name = name
self.dependsOf = []
def declaredType(name):
if name in types: return True
else: return False
def declareType(name):
typeT = Type(name)
types[name] = typeT
def getType(name):
return types[name]
def defTag(name):
tags.add(name)
# Relation
# Trust relation between two agent
class Relation:
def __init__(self, truster, trustee, typeT, expr, tags, rec):
self.truster = truster
self.trustee = trustee
self.typeT = typeT
self.expr = expr
self.tags = tags
self.isRecommended = rec