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PC World 2004 October
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akce
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openoffice
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f_0380
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pythonloader.py
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2004-06-08
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#*************************************************************************
#
# $RCSfile: pythonloader.py,v $
#
# $Revision: 1.2.12.1 $
#
# last change: $Author: vg $ $Date: 2004/01/28 12:16:10 $
#
# The Contents of this file are made available subject to the terms of
# either of the following licenses
#
# - GNU Lesser General Public License Version 2.1
# - Sun Industry Standards Source License Version 1.1
#
# Sun Microsystems Inc., October, 2000
#
# GNU Lesser General Public License Version 2.1
# =============================================
# Copyright 2000 by Sun Microsystems, Inc.
# 901 San Antonio Road, Palo Alto, CA 94303, USA
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License version 2.1, as published by the Free Software Foundation.
#
# This library 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
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
# MA 02111-1307 USA
#
#
# Sun Industry Standards Source License Version 1.1
# =================================================
# The contents of this file are subject to the Sun Industry Standards
# Source License Version 1.1 (the "License"); You may not use this file
# except in compliance with the License. You may obtain a copy of the
# License at http://www.openoffice.org/license.html.
#
# Software provided under this License is provided on an "AS IS" basis,
# WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
# WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
# MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
# See the License for the specific provisions governing your rights and
# obligations concerning the Software.
#
# The Initial Developer of the Original Code is: Ralph Thomas
#
# Copyright: 2000 by Sun Microsystems, Inc.
#
# All Rights Reserved.
#
# Contributor(s): Ralph Thomas, Joerg Budischewski
#
#*************************************************************************
import uno
import unohelper
import imp
import os
from com.sun.star.uno import Exception,RuntimeException
from com.sun.star.loader import XImplementationLoader
from com.sun.star.lang import XServiceInfo
MODULE_PROTOCOL = "vnd.openoffice.pymodule:"
DEBUG = 0
g_supportedServices = "com.sun.star.loader.Python", # referenced by the native C++ loader !
g_implementationName = "org.openoffice.comp.pyuno.Loader" # referenced by the native C++ loader !
def splitUrl( url ):
nColon = url.find( ":" )
if -1 == nColon:
raise RuntimeException( "PythonLoader: No protocol in url " + url )
return url[0:nColon], url[nColon+1:len(url)]
g_loadedComponents = {}
class Loader( XImplementationLoader, XServiceInfo, unohelper.Base ):
def __init__(self, ctx ):
if DEBUG:
print "pythonloader.Loader ctor"
self.ctx = ctx
def getModuleFromUrl( self, url ):
if DEBUG:
print "pythonloader: interpreting url " +url
protocol, dependent = splitUrl( url )
if "vnd.sun.star.expand" == protocol:
exp = self.ctx.getValueByName( "/singletons/com.sun.star.util.theMacroExpander" )
url = exp.expandMacros(dependent)
protocol,dependent = splitUrl( url )
if DEBUG:
print "pythonloader: after expansion " +protocol +":" + dependent
try:
if "file" == protocol:
# remove \..\ sequence, which may be useful e.g. in the build env
url = unohelper.absolutize( url, url )
# did we load the module already ?
mod = g_loadedComponents.get( url )
if not mod:
mod = imp.new_module("uno_component")
# read the file
fileHandle = file( unohelper.fileUrlToSystemPath( url ) )
src = fileHandle.read()
# execute the module
exec src in mod.__dict__
g_loadedComponents[url] = mod
return mod
elif "vnd.openoffice.pymodule" == protocol:
return __import__( dependent )
else:
raise RuntimeException( "PythonLoader: Unknown protocol " +
protocol + " in url " +url, self )
except ImportError, e:
raise RuntimeException( "Couldn't load "+url+ " for reason "+str(e), None)
return None
def activate( self, implementationName, dummy, locationUrl, regKey ):
if DEBUG:
print "pythonloader.Loader.activate"
mod = self.getModuleFromUrl( locationUrl )
implHelper = mod.__dict__.get( "g_ImplementationHelper" , None )
if implHelper == None:
return mod.getComponentFactory( implementationName, self.ctx.ServiceManager, regKey )
else:
return implHelper.getComponentFactory( implementationName,regKey,self.ctx.ServiceManager)
def writeRegistryInfo( self, regKey, dummy, locationUrl ):
if DEBUG:
print "pythonloader.Loader.writeRegistryInfo"
mod = self.getModuleFromUrl( locationUrl )
implHelper = mod.__dict__.get( "g_ImplementationHelper" , None )
if implHelper == None:
return mod.writeRegistryInfo( self.ctx.ServiceManager, regKey )
else:
return implHelper.writeRegistryInfo( regKey, self.ctx.ServiceManager )
def getImplementationName( self ):
return g_implementationName
def supportsService( self, ServiceName ):
return ServiceName in self.serviceNames
def getSupportedServiceNames( self ):
return g_supportedServices