wrapper.py

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import sys, os
from libCatKernel import *

class wrapper():
    def __init__(self, cat, obj, type):
        path=os.path.join(os.environ.get("CATPATH"), obj.dllName(),"python", type)
        if (type=="element"):
            filename=os.path.join(path,obj.type()+".py")
        elif (type=="proc"):
            filename=os.path.join(path,obj.name()+".py")
        self.cat=cat
        #              (dict , source ,  filename , path , error information )
        #              (  0  ,   1    ,     2     ,    3 ,       4        )
        self.modules =  [None,  ""    ,  filename , path ,     None]
        self.ok = self.LoadFromFile()

    def LoadFromFile(self):
        if os.path.isfile(self.modules[2]) :
            file = open(self.modules[2],"rt")
            self.LoadFromSource(file.read())
            file.close()
            return True
        else :
            self.cat.debug("file "+ self.modules[2] + " does not exits. No plot associated to this processus.","wrapper.py")
            return False

    def LoadFromSource(self,source):
        self.modules[1] = source
        self.LoadDict()

    def LoadDict(self):
        source = self.modules[1]
        self.modules[0] = {}
        code = compile(source, "wrap" , "exec")
#        print source
        exec code in self.modules[0]

    def GetFilePath(self):
        return self.modules[3]

    def GetFilename(self):
        return self.modules[2]

    def GetActive(self):
        dict = self.modules[0]
        if dict is None:
            return None
        else:
            return ModuleDictWrapper(dict)


#---------------------------------------------------------------------------

class ModuleDictWrapper:
    """Emulates a module with a dynamically compiled __dict__"""
    def __init__(self, dict):
        self.dict = dict

    def __getattr__(self, name):
        if name in self.dict:
            return self.dict[name]
        else:
            raise AttributeError

#----------------------------------------------------------------------