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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_keys_iterator
#
# Description: Example on how to use keys_iterator functions and the
#              codes_bufr_keys_iterator structure to get all the available
#              keys in a BUFR message.


import sys
import traceback

from eccodes import *

VERBOSE = 1  # verbose error reporting


def example(INPUT):
    # open bufr file
    f = open(INPUT, "rb")

    cnt = 0
    subset = 0

    # loop for the messages in the file
    while 1:
        # get handle for message
        bufr = codes_bufr_new_from_file(f)
        if bufr is None:
            break

        print("message: %s" % cnt)

 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.

#
# Python implementation: bufr_keys_iterator
#
# Description: Example on how to use keys_iterator functions and the
#       # we need  codes_bufr_keys_iterator structureto instruct ecCodes to getexpand all the available
descriptors
        # i.e. unpack the data values
      keys in a BUFR message.


from __future__ import print_function
import traceback
import sys

from eccodes import *

INPUT = '../../data/bufr/syno_1.bufr'
VERBOSE = 1  # verbose error reporting


def example():
 codes_set(bufr, "unpack", 1)

        # get BUFR key iterator
        iterid = codes_bufr_keys_iterator_new(bufr)

        # loop openover bufrthe filekeys
      f = open(INPUT, 'rb')
while codes_bufr_keys_iterator_next(iterid):
    cnt = 0

    # loop for# theprint messageskey inname
 the file
    while 1:
     keyname =  # get handle for message
codes_bufr_keys_iterator_get_name(iterid)
            if bufrkeyname == codes_bufr_new_from_file(f)
"subsetNumber":
           if bufr is None:
  subset += 1
        break

        print("message  Subset: %s%d" % cntsubset)

        # we need to instruct ecCodes to expand all the descriptors
      else:
   # i.e. unpack the data values
        codes_set(bufr, 'unpack', 1print("  %s" % keyname)

        # getdelete BUFRthe key iterator
        iterid = codes_bufr_keys_iterator_newdelete(bufriterid)

        #cnt loop over the keys
+= 1

        #  while codes_bufr_keys_iterator_next(iterid):delete handle
        codes_release(bufr)

    # printclose keythe namefile
    f.close()


def main():
    try:
      keyname = codes_bufr_keys_iterator_get_name(iterid example(sys.argv[1])
    except CodesInternalError as  err:
    print("   %s" % keyname)
if VERBOSE:
        # delete the key iterator traceback.print_exc(file=sys.stderr)
        codes_bufr_keys_iterator_delete(iterid)

else:
            cntsys.stderr.write(err.msg += 1"\n")

        return  # delete handle1


if __name__ == "__main__":
    sys.exit(main())    codes_release(bufr)

    # close the file
    f.close()


def main():
    try:
        example()
    except CodesInternalError as err:
        if VERBOSE:
            traceback.print_exc(file=sys.stderr)
        else:
            sys.stderr.write(err.msg + '\n')

        return 1


if __name__ == "__main__":
    sys.exit(main())

/*
 * (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.
 */
/*
 * C 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.
 *
 */

#include "eccodes.h"

#define MAX_VAL_LEN 1024

static void usage(const char* prog)
{
    printf("usage: %s infile\n", prog);
    exit(1);
}

int main(int argc, char* argv[])
{
    char* filename = NULL;
    FILE* in       = NULL;

    /* message handle. Required in all the eccodes calls acting on a message.*/
    codes_handle* h = NULL;
    int err = 0, cnt = 0;
    int keyType = 0;
    int subsetNumber = 0;

    char value[MAX_VAL_LEN];
    size_t vlen = MAX_VAL_LEN;
    size_t klen = 0;

    if (argc != 2) usage(argv[0]);

    filename = argv[1];

    in = fopen(filename, "rb");
    if (!in) {
        fprintf(stderr, "Error: unable to open file %s\n", filename);
        return 1;
    }

    /* loop over the messages in the BUFR file */
    while ((h = codes_handle_new_from_file(NULL, in, PRODUCT_BUFR, &err)) != NULL || err != CODES_SUCCESS) {
        codes_bufr_keys_iterator* kiter = NULL;
        if (h == NULL) {
            fprintf(stderr, "Error: unable to create handle for message %d\n", cnt);
            cnt++;
            continue;
        }

        printf("message: %d\n", cnt);

        /* we need to instruct ecCodes to unpack the data values */
        CODES_CHECK(codes_set_long(h, "unpack", 1), 0);