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# (C) Copyright 2005- ECMWF.
#
# This software is licensed under the terms of the Apache Licence Version 2.0
# which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
#
# In applying this licence, ECMWF does not waive the privileges and immunities
# granted to it by virtue of its status as an intergovernmental organisation
# nor does it submit to any jurisdiction.
#
#
# Python implementation: bufr_clone
#
# Description: how to create a new BUFR message by cloning
# an existing message.
#
from __future__ import absolute_import
import traceback
import sys
from eccodes import *
INPUT = '../../data/bufr/syno_1.bufr'
OUTPUT = 'bufr_clone_test_p.clone.bufr'
VERBOSE = 1 # verbose error reporting
def example():
# open BUFR file
fin = open(INPUT, 'rb')
# open output BUFR file
fout = open(OUTPUT, 'wb')
# get handle for message
bufr = codes_bufr_new_from_file(fin)
# create several clones of this message and alter them
# in different ways
for centre in range(0, 3):
# clone the message
clone_id = codes_clone(bufr)
# this is the place where you may wish to modify the clone
codes_set(clone_id, 'bufrHeaderCentre', centre)
# write the cloned message to a file
codes_write(clone_id, fout)
# release the clone's handle
codes_release(clone_id)
# release the source's handle
codes_release(bufr)
fin.close()
fout.close()
def main():
try:
example()
except CodesInternalError as err:
if VERBOSE:
traceback.print_exc(file=sys.stderr)
else:
sys.stderr.write(err.msg + '\n')
return 1
if __name__ == "__main__":
sys.exit(main())
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