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#!/usr/bin/env python 

# 

# LSST Data Management System 

# Copyright 2017 LSST Corporation. 

# 

# This product includes software developed by the 

# LSST Project (http://www.lsst.org/). 

# 

# This program is free software: you can redistribute it and/or modify 

# it under the terms of the GNU General Public License as published by 

# the Free Software Foundation, either version 3 of the License, or 

# (at your option) any later version. 

# 

# This program is distributed in the hope that it will be useful, 

# but WITHOUT ANY WARRANTY; without even the implied warranty of 

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 

# GNU General Public License for more details. 

# 

# You should have received a copy of the LSST License Statement and 

# the GNU General Public License along with this program. If not, 

# see <http://www.lsstcorp.org/LegalNotices/>. 

# 

 

import os 

 

from .. import ButlerLocation 

from .. import Mapper 

from .. import Storage 

from . import TestObject 

 

 

class EmptyTestMapper(Mapper): 

"""Class that can be used as a stub for a mapper.""" 

 

def __init__(self, root=None, parentRegistry=None, repositoryCfg=None, **kwargs): 

self.root = root 

self.kwargs = kwargs 

pass 

 

 

class MapperForTestWriting(Mapper): 

 

def __init__(self, root, **kwargs): 

self.root = root 

self.storage = Storage.makeFromURI(self.root) 

 

def map_foo(self, dataId, write): 

python = TestObject 

persistable = None 

storage = 'PickleStorage' 

fileName = 'filename' 

for key, value in sorted(dataId.items()): 

fileName += '_' + key + str(value) 

fileName += '.txt' 

path = os.path.join(self.root, fileName) 

if not write and not os.path.exists(path): 

return None 

return ButlerLocation(python, persistable, storage, path, dataId, self, self.storage)