mirror of https://github.com/ecmwf/eccodes.git
85 lines
2.1 KiB
Fortran
85 lines
2.1 KiB
Fortran
!
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!Copyright 2005-2015 ECMWF.
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!
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! This software is licensed under the terms of the Apache Licence Version 2.0
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!which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
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!
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! In applying this licence, ECMWF does not waive the privileges and immunities granted to it by
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! virtue of its status as an intergovernmental organisation nor does it submit to any jurisdiction.
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!
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!
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! FORTRAN 90 implementation: bufr_keys_iterator
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!
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!
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! Description: how to use keys_iterator functions and the
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! codes_keys_iterator structure to get all the available
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! keys in a BUFR message.
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!
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!
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program bufr_keys_iterator
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use eccodes
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implicit none
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integer :: ifile
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integer :: iret
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integer :: ibufr
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integer :: count=0
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character(len=20) :: name_space
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character(len=256) :: key
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integer :: kiter
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call codes_open_file(ifile,'../../data/bufr/syno_1.bufr','r')
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! name_space='' to get all the keys
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name_space='ls'
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! the first bufr message is loaded from file
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! ibufr is the bufr id to be used in subsequent calls
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call codes_bufr_new_from_file(ifile,ibufr,iret)
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do while (iret /= CODES_END_OF_FILE)
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! get and print some keys form the BUFR header
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write(*,*) 'message: ',count
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! create key iterator
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call codes_keys_iterator_new(ibufr,kiter,name_space,iret)
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if (iret .ne. 0) then
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write(*,*) 'ERROR: Unable to create keys iterator'
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call exit(1)
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end if
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! get first key
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call codes_keys_iterator_next(kiter, iret)
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! loop over keys
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do while (iret == CODES_SUCCESS)
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! print key name
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call codes_keys_iterator_get_name(kiter,key)
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write(*,*) ' ',trim(key)
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! get next key
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call codes_keys_iterator_next(kiter, iret)
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end do
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! delete key iterator
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call codes_keys_iterator_delete(kiter)
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! release the bufr message
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call codes_release(ibufr)
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! load the next bufr message
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call codes_bufr_new_from_file(ifile,ibufr,iret)
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count=count+1
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end do
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! close file
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call codes_close_file(ifile)
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end program bufr_keys_iterator
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