eccodes/examples/F90/bufr_set_keys.f90

67 lines
2.0 KiB
Fortran

! Copyright 2005-2019 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.
!
! FORTRAN 90 implementation: bufr_set_keys
!
! Description: how to set different type of keys in BUFR messages.
!
!
program bufr_set_keys
use eccodes
implicit none
integer :: iret
integer :: infile,outfile
integer :: ibufr
integer :: count=0
integer(kind=4) :: centre, centreNew
! Open input file
call codes_open_file(infile,'../../data/bufr/syno_multi.bufr','r')
! Open output file
call codes_open_file(outfile,'bufr_set_keys_test_f.tmp.bufr','w')
! The first bufr message is loaded from file,
! ibufr is the bufr id to be used in subsequent calls
call codes_bufr_new_from_file(infile,ibufr,iret)
do while (iret/=CODES_END_OF_FILE)
write(*,*) 'message: ',count
! This is the place where you may wish to modify the message
! E.g. we change the centre
! Set centre
centre=222
call codes_set(ibufr,'bufrHeaderCentre',222)
write(*,*) ' set bufrHeaderCentre to:',centre
! Check centre's new value
centreNew=0
call codes_get(ibufr,'bufrHeaderCentre',centreNew)
write(*,*) ' bufrHeaderCentre''s new value:',centreNew
! Write modified message to a file
call codes_write(ibufr,outfile)
! Release the handle
call codes_release(ibufr)
! Next message from source
call codes_bufr_new_from_file(infile,ibufr,iret)
count=count+1
end do
call codes_close_file(infile)
call codes_close_file(outfile)
end program bufr_set_keys