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Diffstat (limited to 'java/examples/datatypes/H5Ex_T_ArrayAttribute.java')
| -rw-r--r-- | java/examples/datatypes/H5Ex_T_ArrayAttribute.java | 320 |
1 files changed, 0 insertions, 320 deletions
diff --git a/java/examples/datatypes/H5Ex_T_ArrayAttribute.java b/java/examples/datatypes/H5Ex_T_ArrayAttribute.java deleted file mode 100644 index 45b44c1..0000000 --- a/java/examples/datatypes/H5Ex_T_ArrayAttribute.java +++ /dev/null @@ -1,320 +0,0 @@ -/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * - * Copyright by The HDF Group. * - * All rights reserved. * - * * - * This file is part of HDF5. The full HDF5 copyright notice, including * - * terms governing use, modification, and redistribution, is contained in * - * the COPYING file, which can be found at the root of the source code * - * distribution tree, or in https://www.hdfgroup.org/licenses. * - * If you do not have access to either file, you may request a copy from * - * help@hdfgroup.org. * - * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ - -/************************************************************ - This example shows how to read and write array datatypes - to an attribute. The program first writes integers arrays - of dimension ADIM0xADIM1 to an attribute with a dataspace - of DIM0, then closes the file. Next, it reopens the - file, reads back the data, and outputs it to the screen. - ************************************************************/ - -package examples.datatypes; - -import hdf.hdf5lib.H5; -import hdf.hdf5lib.HDF5Constants; - -public class H5Ex_T_ArrayAttribute { - private static String FILENAME = "H5Ex_T_ArrayAttribute.h5"; - private static String DATASETNAME = "DS1"; - private static String ATTRIBUTENAME = "A1"; - private static final int DIM0 = 4; - private static final int ADIM0 = 3; - private static final int ADIM1 = 5; - private static final int RANK = 1; - private static final int NDIMS = 2; - - private static void CreateDataset() - { - long file_id = HDF5Constants.H5I_INVALID_HID; - long filetype_id = HDF5Constants.H5I_INVALID_HID; - long memtype_id = HDF5Constants.H5I_INVALID_HID; - long dataspace_id = HDF5Constants.H5I_INVALID_HID; - long dataset_id = HDF5Constants.H5I_INVALID_HID; - long attribute_id = HDF5Constants.H5I_INVALID_HID; - long[] dims = {DIM0}; - long[] adims = {ADIM0, ADIM1}; - int[][][] dset_data = new int[DIM0][ADIM0][ADIM1]; - - // Initialize data. indx is the element in the dataspace, jndx and kndx the - // elements within the array datatype. - for (int indx = 0; indx < DIM0; indx++) - for (int jndx = 0; jndx < ADIM0; jndx++) - for (int kndx = 0; kndx < ADIM1; kndx++) - dset_data[indx][jndx][kndx] = indx * jndx - jndx * kndx + indx * kndx; - - // Create a new file using default properties. - try { - file_id = H5.H5Fcreate(FILENAME, HDF5Constants.H5F_ACC_TRUNC, HDF5Constants.H5P_DEFAULT, - HDF5Constants.H5P_DEFAULT); - } - catch (Exception e) { - e.printStackTrace(); - } - - // Create array datatypes for file. - try { - filetype_id = H5.H5Tarray_create(HDF5Constants.H5T_STD_I64LE, NDIMS, adims); - } - catch (Exception e) { - e.printStackTrace(); - } - - // Create array datatypes for memory. - try { - memtype_id = H5.H5Tarray_create(HDF5Constants.H5T_NATIVE_INT, NDIMS, adims); - } - catch (Exception e) { - e.printStackTrace(); - } - - // Create dataset with a scalar dataspace. - try { - dataspace_id = H5.H5Screate(HDF5Constants.H5S_SCALAR); - if (dataspace_id >= 0) { - dataset_id = H5.H5Dcreate(file_id, DATASETNAME, HDF5Constants.H5T_STD_I32LE, dataspace_id, - HDF5Constants.H5P_DEFAULT, HDF5Constants.H5P_DEFAULT, - HDF5Constants.H5P_DEFAULT); - H5.H5Sclose(dataspace_id); - dataspace_id = HDF5Constants.H5I_INVALID_HID; - } - } - catch (Exception e) { - e.printStackTrace(); - } - - // Create dataspace. Setting maximum size to NULL sets the maximum - // size to be the current size. - try { - dataspace_id = H5.H5Screate_simple(RANK, dims, null); - } - catch (Exception e) { - e.printStackTrace(); - } - - // Create the attribute and write the array data to it. - try { - if ((dataset_id >= 0) && (dataspace_id >= 0) && (filetype_id >= 0)) - attribute_id = H5.H5Acreate(dataset_id, ATTRIBUTENAME, filetype_id, dataspace_id, - HDF5Constants.H5P_DEFAULT, HDF5Constants.H5P_DEFAULT); - } - catch (Exception e) { - e.printStackTrace(); - } - - // Write the dataset. - try { - if ((attribute_id >= 0) && (memtype_id >= 0)) - H5.H5Awrite(attribute_id, memtype_id, dset_data); - } - catch (Exception e) { - e.printStackTrace(); - } - - // End access to the dataset and release resources used by it. - try { - if (attribute_id >= 0) - H5.H5Aclose(attribute_id); - } - catch (Exception e) { - e.printStackTrace(); - } - - try { - if (dataset_id >= 0) - H5.H5Dclose(dataset_id); - } - catch (Exception e) { - e.printStackTrace(); - } - - // Terminate access to the data space. - try { - if (dataspace_id >= 0) - H5.H5Sclose(dataspace_id); - } - catch (Exception e) { - e.printStackTrace(); - } - - // Terminate access to the file type. - try { - if (filetype_id >= 0) - H5.H5Tclose(filetype_id); - } - catch (Exception e) { - e.printStackTrace(); - } - - // Terminate access to the mem type. - try { - if (memtype_id >= 0) - H5.H5Tclose(memtype_id); - } - catch (Exception e) { - e.printStackTrace(); - } - - // Close the file. - try { - if (file_id >= 0) - H5.H5Fclose(file_id); - } - catch (Exception e) { - e.printStackTrace(); - } - } - - private static void ReadDataset() - { - long file_id = HDF5Constants.H5I_INVALID_HID; - long filetype_id = HDF5Constants.H5I_INVALID_HID; - long memtype_id = HDF5Constants.H5I_INVALID_HID; - long dataset_id = HDF5Constants.H5I_INVALID_HID; - long attribute_id = HDF5Constants.H5I_INVALID_HID; - long[] dims = {DIM0}; - long[] adims = {ADIM0, ADIM1}; - int[][][] dset_data; - - // Open an existing file. - try { - file_id = H5.H5Fopen(FILENAME, HDF5Constants.H5F_ACC_RDONLY, HDF5Constants.H5P_DEFAULT); - } - catch (Exception e) { - e.printStackTrace(); - } - - // Open an existing dataset. - try { - if (file_id >= 0) - dataset_id = H5.H5Dopen(file_id, DATASETNAME, HDF5Constants.H5P_DEFAULT); - } - catch (Exception e) { - e.printStackTrace(); - } - - try { - if (dataset_id >= 0) - attribute_id = H5.H5Aopen_by_name(dataset_id, ".", ATTRIBUTENAME, HDF5Constants.H5P_DEFAULT, - HDF5Constants.H5P_DEFAULT); - } - catch (Exception e) { - e.printStackTrace(); - } - - // Get the datatype. - try { - if (attribute_id >= 0) - filetype_id = H5.H5Aget_type(attribute_id); - } - catch (Exception e) { - e.printStackTrace(); - } - - // Get the datatype's dimensions. - try { - if (filetype_id >= 0) - H5.H5Tget_array_dims(filetype_id, adims); - } - catch (Exception e) { - e.printStackTrace(); - } - - // Allocate array of pointers to two-dimensional arrays (the - // elements of the dataset. - dset_data = new int[(int)dims[0]][(int)(adims[0])][(int)(adims[1])]; - - // Create array datatypes for memory. - try { - memtype_id = H5.H5Tarray_create(HDF5Constants.H5T_NATIVE_INT, 2, adims); - } - catch (Exception e) { - e.printStackTrace(); - } - - // Read data. - try { - if ((attribute_id >= 0) && (memtype_id >= 0)) - H5.H5Aread(attribute_id, memtype_id, dset_data); - } - catch (Exception e) { - e.printStackTrace(); - } - - // Output the data to the screen. - for (int indx = 0; indx < dims[0]; indx++) { - System.out.println(ATTRIBUTENAME + " [" + indx + "]:"); - for (int jndx = 0; jndx < adims[0]; jndx++) { - System.out.print(" ["); - for (int kndx = 0; kndx < adims[1]; kndx++) - System.out.print(dset_data[indx][jndx][kndx] + " "); - System.out.println("]"); - } - System.out.println(); - } - System.out.println(); - - // End access to the dataset and release resources used by it. - try { - if (attribute_id >= 0) - H5.H5Aclose(attribute_id); - } - catch (Exception e) { - e.printStackTrace(); - } - - try { - if (dataset_id >= 0) - H5.H5Dclose(dataset_id); - } - catch (Exception e) { - e.printStackTrace(); - } - - // Terminate access to the file type. - try { - if (filetype_id >= 0) - H5.H5Tclose(filetype_id); - } - catch (Exception e) { - e.printStackTrace(); - } - - // Terminate access to the mem type. - try { - if (memtype_id >= 0) - H5.H5Tclose(memtype_id); - } - catch (Exception e) { - e.printStackTrace(); - } - - // Close the file. - try { - if (file_id >= 0) - H5.H5Fclose(file_id); - } - catch (Exception e) { - e.printStackTrace(); - } - } - - public static void main(String[] args) - { - H5Ex_T_ArrayAttribute.CreateDataset(); - // Now we begin the read section of this example. Here we assume - // the dataset and array have the same name and rank, but can have - // any size. Therefore we must allocate a new array to read in - // data using malloc(). - H5Ex_T_ArrayAttribute.ReadDataset(); - } -} |