def runTest(self):
"""Test blank"""
prefString= ""
prefs = Properties(prefString)
prefString = "default.name=Bilbo Baggins\nhomepage.feeds=42,24"
prefs = Properties(prefString)
assert cmp('Bilbo Baggins', prefs.get('default.name')) == 0, 'Error retrieving value from key'
assert cmp('', prefs.get('jeff')) == 0, "Missing keys should default to blank string"
prefs.set('Hulk', 'Hogan')
assert cmp('Hogan', prefs.get('Hulk')) == 0, 'Error retrieving set key/value'
stringValue = prefs.convertToPropertiesFile()
#this last test needs to be fixed, can fail if keys are not brought back in same order
assert cmp(prefString + "\nHulk=Hogan", stringValue) == 0, 'Error converting to properties'
prefString = "jeff=1"
prefs = Properties(prefString)
assert cmp('1', prefs.get('jeff')) == 0
assert cmp('1', prefs.pop('jeff')) == 0
try:
prefs.pop('badkey')
unittest.fail('A KeyError exception should have prevented this')
except KeyError:
pass
assert False == prefs.has_key('jeff')
class ResourceBundle(PyWebMvcObject):
"""Extends a L{Properties<properties.Properties>} file to allow for
parameterized substitution and property references (terms). Parameters are in
the form C{{N}} where N is an zero-based index of the paramters to the
getMessage function. Terms take the form C{${resourcekey}} and allow a
resource entry to refer to another resource entry. It is not recommended that
you place parameters in your terms, but it is allowed since parameter
substitution is performed after term expansion. Example::
term.foo=Foo
term.idea=idea
term.modifiedIdea={1} ${term.idea}
message.bar=This is my {0} ${term.foo}.
message.badIdea=This is a {0} ${term.modifiedIdea}.
message.fineIdea=This is a {0} {1}.
message.goodIdea=This is a {0} {1} ${term.idea}.
>>> bundle["term.foo"]
'Foo'
>>> bundle["term.modifiedIdea"]
'{1} idea'
>>> bundle.getMessage("message.bar","Silly")
'This is my Silly Foo.'
>>> bundle.getMessage("message.badIdea","really", "bad")
'This is a really bad idea.'
>>> bundle.getMessage("message.fineIdea","perfectly",
... bundle.getMessage("term.modifiedIdea","fine"))
'This is a perfectly fine idea.'
>>> bundle.getMessage("message.goodIdea","much", "better")
'This is a much better idea.'
"""
def __init__(self, propertiesFile = None):
self.props = Properties()
if propertiesFile:
self.addPropertiesFile(propertiesFile)
def addPropertiesFile(self, propertiesFile):
if isinstance(propertiesFile, types.StringTypes):
self.props.read(propertiesFile)
else:
self.props.load(propertiesFile)
self.resolve_terms()
def addPropertiesFiles(self, propertiesFiles):
for f in propertiesFiles:
self.addPropertiesFile(f)
def resolve_terms(self):
for key in self.props.keys():
self.props[key] = self.replaceTerms(self.props[key])
def has_term(self,msg):
idx = msg.find("${")
if idx < 0:
return False
else:
return msg.find("}",idx) >= 0
def get_term(self,msg,all=False):
tokens = re.split("(\\$\\{|\\})",msg)
startCount = 0
term = ""
terms = []
for token in tokens:
if token == "${":
startCount += 1
if startCount > 1:
term += token
elif token == "}" and startCount > 0:
startCount -= 1
if startCount == 0:
if all:
terms.append(term)
term = ""
else:
return term
else:
term += token
elif startCount > 0:
term += token
if startCount > 0:
raise ValueError("Malformed term found in message resource: "+msg)
if all:
return terms
else:
return None
def replaceTerms(self, msg, paramMap = {}):
terms = self.get_term(msg,all=True)
for term in terms:
origTerm = term
try:
if self.has_term(term):
term = self.replaceTerms(term, paramMap)
if paramMap.has_key(term):
termVal = paramMap[term]
else:
termVal = self.getMessage(term,paramMap)
msg = msg.replace("${"+origTerm+"}",termVal)
except KeyError:
pass
return msg
def keys(self):
return self.props.keys()
def has_key(self, key):
return self.props.has_key(key)
def getItemWithMap(self, key, map = {}):
if self.props.has_key(key):
return self.replaceTerms(self.props[key],map)
else:
raise KeyError(key)
def __getitem__(self, key):
return self.getItemWithMap(key)
def __setitem__(self, key, value):
self.props[key] = value
def getMessageWithMap(self, key, paramList, paramMap):
msg = self.getItemWithMap(key, paramMap)
msg = self.substituteParams(msg, paramList)
return msg
def getMessage(self, key, *args, **kwargs):
return self.getMessageWithMap(key, args, kwargs)
def substituteParams(self, msg, args):
result = msg
i = 0
for arg in args:
parameter = ("{%i}" % (i))
argStr = unicode(arg)
result = result.replace(parameter, argStr)
i = i + 1
return result
def getItemArrayWithMap(self, key, messageParams, paramMap):
arrayResult = []
count = 0
while(True):
#str:ok
arrayKey = key + "." + str(count)
if(not self.props.has_key(arrayKey)): break
item = self.replaceTerms(self.props[arrayKey], paramMap)
item = self.substituteParams(item, messageParams)
arrayResult.append(item)
count += 1
return arrayResult
def getItemArray(self, key, *messageParams, **kwargs):
return self.getItemArrayWithMap(key, messageParams, kwargs)
