def _openimage(filename):
"""
determine which format for a filename
and return appropriate class which can be used for opening the image
"""
lower_filename = filename.lower()
for prefix in URL_PREFIX:
if lower_filename.startswith(prefix):
filename = filename[len(prefix):]
if filename.startswith("//"):
filename = filename[2:]
if URL_PREFIX[prefix]: #process :path[slice,:,:]
if "[" in filename:
filename = filename[:filename.index("[")]
if ":" in filename:
col_split = filename.split(":")
filename = ":".join(col_split[:-1])
try:
imo = fabioimage()
byts = imo._open(filename).read(18)
filetype = do_magic(byts)
if filetype == "marccd" and filename.find("mccd") == -1:
# Cannot see a way around this. Need to find something
# to distinguish mccd from regular tif...
filetype = "tif"
except IOError, error:
logger.error("%s: File probably does not exist", error)
raise error
def _openimage(filename):
"""
determine which format for a filename
and return appropriate class which can be used for opening the image
"""
try:
imo = fabioimage()
byts = imo._open(filename).read(18)
filetype = do_magic(byts)
# print filetype
if filetype == "marccd" and filename.find("mccd") == -1:
# Cannot see a way around this. Need to find something
# to distinguish mccd from regular tif...
filetype = "tif"
#UNUSED filenumber = getnum(filename)
except IOError:
# File probably does not exist
raise
except:
try:
file_obj = deconstruct_filename(filename)
if file_obj == None:
raise Exception
if len(file_obj.format) != 1 and \
type(file_obj.format) != type(["list"]):
# one of OXD/ ADSC - should have got in previous
raise Exception("openimage failed on magic bytes & name guess")
filetype = file_obj.format
#UNUSED filenumber = file_obj.num
except:
#import traceback
#traceback.print_exc()
raise Exception("Fabio could not identify " + filename)
klass_name = "".join(filetype) + 'image'
# print "looking for %s in" % klass_name
# for i in sys.modules:
# if klass_name in i:
# print "%s\t%s" % (i, sys.modules[i])
module = sys.modules.get("fabio." + klass_name, None)
# if hasattr(__init__, klass_name):
# module = getattr(__init__, klass_name)
if module is not None:
if hasattr(module, klass_name):
klass = getattr(module, klass_name)
# print klass
else:
raise Exception("Module %s has no image class" % module)
else:
raise Exception("Filetype not known %s %s" % (filename, klass_name))
obj = klass()
# skip the read for read header
return obj
def _openimage(filename):
"""
determine which format for a filename
and return appropriate class which can be used for opening the image
"""
try:
imo = fabioimage()
byts = imo._open(filename).read(18)
filetype = do_magic(byts)
# print filetype
if filetype == "marccd" and filename.find("mccd") == -1:
# Cannot see a way around this. Need to find something
# to distinguish mccd from regular tif...
filetype = "tif"
#UNUSED filenumber = getnum(filename)
except IOError:
# File probably does not exist
raise
except:
try:
file_obj = deconstruct_filename(filename)
if file_obj == None:
raise Exception
if len(file_obj.format) != 1 and \
type(file_obj.format) != type(["list"]):
# one of OXD/ ADSC - should have got in previous
raise Exception("openimage failed on magic bytes & name guess")
filetype = file_obj.format
#UNUSED filenumber = file_obj.num
except:
#import traceback
#traceback.print_exc()
raise Exception("Fabio could not identify " + filename)
klass_name = "".join(filetype) + 'image'
# print "looking for %s in" % klass_name
# for i in sys.modules:
# if klass_name in i:
# print "%s\t%s" % (i, sys.modules[i])
module = sys.modules.get("fabio." + klass_name, None)
# if hasattr(__init__, klass_name):
# module = getattr(__init__, klass_name)
if module is not None:
if hasattr(module, klass_name):
klass = getattr(module, klass_name)
# print klass
else:
raise Exception("Module %s has no image class" % module)
else:
raise Exception("Filetype not known %s %s" % (filename, klass_name))
obj = klass()
# skip the read for read header
return obj
def _openimage(filename):
"""
determine which format for a filename
and return appropriate class which can be used for opening the image
"""
try:
imo = fabioimage()
byts = imo._open(filename).read(18)
filetype = do_magic(byts)
if filetype == "marccd" and filename.find("mccd") == -1:
# Cannot see a way around this. Need to find something
# to distinguish mccd from regular tif...
filetype = "tif"
except IOError, error:
logger.error("%s: File probably does not exist", error)
raise error
def _openimage(filename):
"""
determine which format for a filename
and return appropriate class which can be used for opening the image
"""
try:
imo = fabioimage()
byts = imo._open(filename).read(18)
filetype = do_magic(byts)
if filetype == "marccd" and filename.find("mccd") == -1:
# Cannot see a way around this. Need to find something
# to distinguish mccd from regular tif...
filetype = "tif"
except IOError, error:
logger.error("%s: File probably does not exist", error)
raise error
