d9faed979f
Former-commit-id:77cbd6c1e5[formerlya1d931fd44] [formerly61f269f54c] [formerlyf2fac39428[formerly61f269f54c[formerly d85b989f77196d20eb2d2a21cf4daa13d50474ae]]] Former-commit-id:f2fac39428Former-commit-id: 54140b7733222bbc423315196e9781453b12f896 [formerly72824561cb] Former-commit-id:7fb0b17bd5
82 lines
No EOL
2.8 KiB
Python
82 lines
No EOL
2.8 KiB
Python
##
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# This software was developed and / or modified by Raytheon Company,
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# pursuant to Contract DG133W-05-CQ-1067 with the US Government.
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#
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# U.S. EXPORT CONTROLLED TECHNICAL DATA
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# This software product contains export-restricted data whose
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# export/transfer/disclosure is restricted by U.S. law. Dissemination
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# to non-U.S. persons whether in the United States or abroad requires
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# an export license or other authorization.
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#
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# Contractor Name: Raytheon Company
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# Contractor Address: 6825 Pine Street, Suite 340
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# Mail Stop B8
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# Omaha, NE 68106
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# 402.291.0100
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#
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# See the AWIPS II Master Rights File ("Master Rights File.pdf") for
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# further licensing information.
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##
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#
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# Python import hook (PEP 302) for providing inheritance to derived parameters.
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# This enables an individual to override one of the methods of a derived
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# parameter function while still retaining the base versions of the other
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# methods.
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#
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#
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# SOFTWARE HISTORY
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#
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# Date Ticket# Engineer Description
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# ------------ ---------- ----------- --------------------------
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# 12/20/10 njensen Initial creation
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#
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#
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#
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import os, types, sys, imp, inspect
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class DerivParamImporter:
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def __init__(self, *args):
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# Initialize directories to search for files
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self.searchDirs = args;
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def __buildPath(self, dir, name):
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return dir + os.sep + name + '.py'
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def __isDerivParam(self, name):
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# Check each directory to search instead of base/site/user specifically
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for searchDir in self.searchDirs:
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if os.path.exists(self.__buildPath(searchDir, name)):
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return True
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return False
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def find_module(self, fullname, path=None):
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if path is None:
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if self.__isDerivParam(fullname):
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return self
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return None
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def load_module(self, fullname):
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if sys.modules.has_key(fullname):
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return sys.modules[fullname]
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combined = imp.new_module(fullname)
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i = 0
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for searchDir in self.searchDirs:
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# Add module for each search directory, giving unique name
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self.__addToModule(combined, fullname, searchDir, "localization" + str(i))
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i = i + 1
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sys.modules[fullname] = combined
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return combined
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def __addToModule(self, combined, moduleName, dirPath, level):
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fullpath = self.__buildPath(dirPath, moduleName)
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if os.path.exists(fullpath):
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mod = imp.load_source(level + moduleName, fullpath)
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methods = inspect.getmembers(mod, inspect.isfunction)
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for m in methods:
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combined.__setattr__(m[0], m[1])
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return combined
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