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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_copy_data
#
# Description: How to copy all the values in the data section that are present in the same
# position in the data tree and with the same number of values to the output handle.
# In this example we add the WIGOS sequence 301150 to a SYNOP
#
import sys
import traceback
from eccodes import *
VERBOSE = 1 # verbose error reporting
WIGOS_SEQ = 301150
def example(input_filename, output_filename):
f = open(input_filename, "rb")
ibufrin = codes_bufr_new_from_file(f)
f.close()
codes_set(ibufrin, "unpack", 1)
inUE = codes_get_array(ibufrin, "unexpandedDescriptors").tolist()
nsubsets = 2
ibufrout = codes_bufr_new_from_samples("BUFR4")
# Update the unexpandedDescriptors to add the WIGOS data at the beginning
outUE = inUE
outUE.insert(0, WIGOS_SEQ)
codes_set(ibufrout, "masterTablesVersionNumber", 28)
codes_set(ibufrout, "numberOfSubsets", nsubsets)
codes_set_array(ibufrout, "unexpandedDescriptors", outUE)
# Some dummy WIGOS info
for i in range(0, nsubsets):
key = "#{0}#wigosIssuerOfIdentifier".format(i + 1)
codes_set(ibufrout, key, (i + 1) * 3)
# Copy across other data in input
codes_bufr_copy_data(ibufrin, ibufrout)
outfile = open(output_filename, "wb")
codes_write(ibufrout, outfile)
outfile.close()
codes_release(ibufrin)
codes_release(ibufrout)
def main():
if len(sys.argv) < 3:
print("Usage: ", sys.argv[0], " bufr_in bufr_out", file=sys.stderr)
return 1
input_filename = sys.argv[1]
output_filename = sys.argv[2]
try:
example(input_filename, output_filename)
except CodesInternalError as err:
if VERBOSE:
traceback.print_exc(file=sys.stderr)
else:
sys.stderr.write(err.msg + "\n")
return 1
return 0
if __name__ == "__main__":
sys.exit(main())
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