Hi,
How do I create a 2 dimensional dataset for strings in Java? I have it
working fine for integers, but once I change the type to
HDF5Constants.H5T_C_S1, the dataset seems to become a 1D array with a size
of the specified Y-dimension. I copied and pasted my code below for anyone
who can point out what I'm doing wrong.
Thanks in advance!
final int RANK = 2;
int filespace_id = -1;
int type_id = -1;
int dcpl_id = -1;
int dataset_id = -1;
Dataset dset = null;
final int DIM_X = 32;
final int DIM_Y = 100;
final int CHUNK_X = 4;
final int CHUNK_Y = 8;
long[] chunk_dims = { CHUNK_X, CHUNK_Y };
long[] dims = { DIM_X, DIM_Y };
final int NDIMS = 2;
// Create dataspace.
try {
filespace_id = H5.H5Screate_simple(RANK, dims, maxdims);
type_id = H5.H5Tcopy(HDF5Constants.H5T_C_S1);
H5.H5Tset_size(type_id, HDF5Constants.H5T_VARIABLE);
}
catch (Exception e) {
e.printStackTrace();
}
// Create the dataset creation property list, add the gzip
compression
// filter.
try {
dcpl_id = H5.H5Pcreate(HDF5Constants.H5P_DATASET_CREATE);
if(dcpl_id >= 0){
H5.H5Pset_deflate(dcpl_id, 9);
// Set the chunk size.
H5.H5Pset_chunk(dcpl_id, NDIMS, chunk_dims);
}
}
catch (Exception e) {
e.printStackTrace();
}
// Create the dataset.
try {
if ((file_id >= 0) && (filespace_id >= 0) && (dcpl_id >= 0))
dataset_id = H5.H5Dcreate(file_id, DATASETNAME,
type_id, filespace_id, HDF5Constants.H5P_DEFAULT,
dcpl_id, HDF5Constants.H5P_DEFAULT);
dset = new H5ScalarDS(file, DATASETNAME, "/");
Group pgroup = (Group) file.get("/");
pgroup.addToMemberList(dset);
}
catch (Exception e) {
e.printStackTrace();
}
// End access to the dataset and release resources used by it.
try {
if (dcpl_id >= 0)
H5.H5Pclose(dcpl_id);
if (type_id >= 0)
H5.H5Tclose(type_id);
if (dataset_id >= 0)
dset.close(dataset_id);
if (filespace_id >= 0)
H5.H5Sclose(filespace_id);
}
catch (Exception e) {
e.printStackTrace();
}
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