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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.
!
!
! FORTRAN 90 implementation: bufr_keys_iterator
!
!
! Description: how to use keys_iterator functions and the
! codes_bufr_keys_iterator structure to get all the available
! keys in a BUFR message.
!
program bufr_keys_iterator
use eccodes
implicit none
integer :: ifile
integer :: iret
integer :: ibufr
integer :: count=0
character(len=256) :: key
integer :: kiter
call codes_open_file(ifile,'../../data/bufr/syno_1.bufr','r')
! 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(ifile,ibufr,iret)
do while (iret /= CODES_END_OF_FILE)
! Get and print some keys form the BUFR header
write(*,*) 'message: ',count
! We need to instruct ecCodes to expand all the descriptors
! i.e. unpack the data values
call codes_set(ibufr,"unpack",1);
! Create BUFR keys iterator
call codes_bufr_keys_iterator_new(ibufr,kiter,iret)
if (iret .ne. 0) then
write(*,*) 'ERROR: Unable to create BUFR keys iterator'
call exit(1)
end if
! Get first key
call codes_bufr_keys_iterator_next(kiter, iret)
! Loop over keys
do while (iret == CODES_SUCCESS)
! Print key name
call codes_bufr_keys_iterator_get_name(kiter,key)
write(*,*) ' ',trim(key)
! Get next key
call codes_bufr_keys_iterator_next(kiter, iret)
end do
! Delete key iterator
call codes_bufr_keys_iterator_delete(kiter)
! Release the bufr message
call codes_release(ibufr)
! Load the next bufr message
call codes_bufr_new_from_file(ifile,ibufr,iret)
count=count+1
end do
! Close file
call codes_close_file(ifile)
end program bufr_keys_iterator
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