def image_resource(self, image_name):
""" Returns the ImageResource object for the specified **image_name**.
"""
# Get the name of the image file:
volume_name, file_name = split_image_name(image_name)
if self.is_zip_file:
# See if we already have the image file cached in the file system:
cache_file = self._check_cache(file_name)
if cache_file is None:
# If not cached, then create a zip file reference:
ref = ZipFileReference(
resource_factory=resource_manager.resource_factory,
zip_file=self.zip_file,
path=self.path,
volume_name=self.name,
file_name=file_name)
else:
# Otherwise, create a cache file reference:
ref = ImageReference(resource_manager.resource_factory,
filename=cache_file)
else:
# Otherwise, create a normal file reference:
ref = ImageReference(resource_manager.resource_factory,
filename=join(self.path, file_name))
# Create the ImageResource object using the reference (note that the
# ImageResource class will not allow us to specify the reference in the
# constructor):
resource = ImageResource(file_name)
resource._ref = ref
# Return the ImageResource:
return resource
def image_resource ( self, image_name ):
""" Returns the ImageResource object for the specified **image_name**.
"""
# Get the name of the image file:
volume_name, file_name = split_image_name( image_name )
if self.is_zip_file:
# See if we already have the image file cached in the file system:
cache_file = self._check_cache( file_name )
if cache_file is None:
# If not cached, then create a zip file reference:
ref = ZipFileReference(
resource_factory = resource_manager.resource_factory,
zip_file = self.zip_file,
path = self.path,
volume_name = self.name,
file_name = file_name )
else:
# Otherwise, create a cache file reference:
ref = ImageReference( resource_manager.resource_factory,
filename = cache_file )
else:
# Otherwise, create a normal file reference:
ref = ImageReference( resource_manager.resource_factory,
filename = join( self.path, file_name ) )
# Create the ImageResource object using the reference (note that the
# ImageResource class will not allow us to specify the reference in the
# constructor):
resource = ImageResource( file_name )
resource._ref = ref
# Return the ImageResource:
return resource
