mirror of https://github.com/ecmwf/eccodes.git
82 lines
2.1 KiB
Fortran
82 lines
2.1 KiB
Fortran
!
|
|
!Copyright 2005-2018 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
|