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C This is part of the netCDF package. Copyright 2006-2019 University
C Corporation for Atmospheric Research/Unidata. See COPYRIGHT file
C for conditions of use.
C This program tests netCDF-4 variable functions from fortran.
C Russ Rew, 2009
program ftst_rengrps
implicit none
include "netcdf.inc"
C This is the name of the data file we will create.
character (len = *), parameter :: FILE_NAME = "ftst_rengrps.nc"
C We are writing 2D data, a 6 x 12 grid.
integer, parameter :: MAX_DIMS = 2
integer, parameter :: NX = 6, NY = 12
integer :: chunksizes(MAX_DIMS), chunksizes_in(MAX_DIMS)
integer, parameter :: CACHE_NELEMS = 10000, CACHE_SIZE = 1000000
integer, parameter :: DEFLATE_LEVEL = 4
C We need these ids and other gunk for netcdf.
integer :: ncid, varid1, varid2, dimids(MAX_DIMS)
integer :: x_dimid, y_dimid
integer :: nvars, ngatts, ndims, unlimdimid, file_format
character (len = *), parameter :: VAR1_NAME = "VarName1"
character (len = *), parameter :: VAR2_NAME = "VarName2"
character (len = *), parameter :: GRP1_NAME = "Old_Grp1_name"
character (len = *), parameter :: GRP2_NAME = "Old_Grp2_name"
character (len = *), parameter :: NEW_GRP1_NAME = "new_Grp1_name"
character (len = *), parameter :: NEW_GRP2_NAME = "new_Grp2_name"
character (len = NF_MAX_NAME) :: grp1_full_name
integer :: ilen
C Information read back from the file to check correctness.
integer :: varid1_in, varid2_in
integer :: grpid1, grpid2
integer :: xtype_in, ndims_in, natts_in, dimids_in(MAX_DIMS)
character (len = nf_max_name) :: name_in
print *, ''
print *,'*** Testing netCDF-4 rename groups from Fortran 90.'
C Create the netCDF file.
call check(nf_create(FILE_NAME, NF_NETCDF4, ncid))
C Define the dimensions.
call check(nf_def_dim(ncid, "x", NX, x_dimid))
call check(nf_def_dim(ncid, "y", NY, y_dimid))
dimids = (/ y_dimid, x_dimid /)
C Define some nested groups.
call check(nf_def_grp(ncid, GRP1_NAME, grpid1))
call check(nf_def_grp(grpid1, GRP2_NAME, grpid2))
C Define some variables.
chunksizes = (/ NY, NX /)
call check(nf_def_var(ncid, VAR1_NAME, NF_INT, MAX_DIMS, dimids, &
& varid1))
call check(nf_def_var(grpid1, VAR2_NAME, NF_INT, MAX_DIMS, dimids,&
& varid2))
C Close the file.
call check(nf_close(ncid))
C Reopen the file.
call check(nf_open(FILE_NAME, NF_WRITE, ncid))
C Get the group ids for the newly reopened file.
call check(nf_inq_grp_ncid(ncid, GRP1_NAME, grpid1))
call check(nf_inq_grp_ncid(grpid1, GRP2_NAME, grpid2))
C Check for the groups with full group names.
write(grp1_full_name, '(A,A)') '/', GRP1_NAME
call check(nf_inq_grp_full_ncid(ncid, grp1_full_name, grpid1))
call check(nf_inq_grpname(grpid1, name_in))
if (name_in .ne. GRP1_NAME) stop 61
call check(nf_inq_grpname_full(grpid1, ilen, name_in))
if (name_in .ne. grp1_full_name) stop 62
Call check(nf_rename_grp(grpid1, NEW_GRP1_NAME))
name_in=REPEAT(" ",LEN(name_in))
Call check(nf_inq_grpname(grpid1, name_in))
If (name_in /= NEW_GRP1_NAME) Call check(-1)
C Close the file.
call check(nf_close(ncid))
print *,'*** SUCCESS!'
contains
C This subroutine handles errors by printing an error message and
C exiting with a non-zero status.
subroutine check(errcode)
implicit none
include "netcdf.inc"
integer, intent(in) :: errcode
if(errcode /= NF_NOERR) then
print *, 'Error: ', trim(nf_strerror(errcode))
stop 2
endif
end subroutine check
end program ftst_rengrps
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