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diff --git a/java/examples/datasets/H5Ex_D_Alloc.java b/java/examples/datasets/H5Ex_D_Alloc.java
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-/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
- * 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 set the space allocation time
- for a dataset. The program first creates two datasets,
- one with the default allocation time (late) and one with
- early allocation time, and displays whether each has been
- allocated and their allocation size. Next, it writes data
- to the datasets, and again displays whether each has been
- allocated and their allocation size.
- ************************************************************/
-package examples.datasets;
-
-import java.util.EnumSet;
-import java.util.HashMap;
-import java.util.Map;
-
-import hdf.hdf5lib.H5;
-import hdf.hdf5lib.HDF5Constants;
-
-public class H5Ex_D_Alloc {
- private static String FILENAME = "H5Ex_D_Alloc.h5";
- private static String DATASETNAME1 = "DS1";
- private static String DATASETNAME2 = "DS2";
- private static final int DIM_X = 4;
- private static final int DIM_Y = 7;
- private static final int FILLVAL = 99;
- private static final int RANK = 2;
-
- // Values for the status of space allocation
- enum H5D_space_status {
- H5D_SPACE_STATUS_ERROR(-1),
- H5D_SPACE_STATUS_NOT_ALLOCATED(0),
- H5D_SPACE_STATUS_PART_ALLOCATED(1),
- H5D_SPACE_STATUS_ALLOCATED(2);
- private static final Map<Integer, H5D_space_status> lookup = new HashMap<Integer, H5D_space_status>();
-
- static
- {
- for (H5D_space_status s : EnumSet.allOf(H5D_space_status.class))
- lookup.put(s.getCode(), s);
- }
-
- private int code;
-
- H5D_space_status(int space_status) { this.code = space_status; }
-
- public int getCode() { return this.code; }
-
- public static H5D_space_status get(int code) { return lookup.get(code); }
- }
-
- private static void allocation()
- {
- long file_id = HDF5Constants.H5I_INVALID_HID;
- long filespace_id = HDF5Constants.H5I_INVALID_HID;
- long dataset_id1 = HDF5Constants.H5I_INVALID_HID;
- long dataset_id2 = HDF5Constants.H5I_INVALID_HID;
- long dcpl_id = HDF5Constants.H5I_INVALID_HID;
- long[] dims = {DIM_X, DIM_Y};
- int[][] dset_data = new int[DIM_X][DIM_Y];
- int space_status = 0;
- long storage_size = 0;
-
- // Initialize the dataset.
- for (int indx = 0; indx < DIM_X; indx++)
- for (int jndx = 0; jndx < DIM_Y; jndx++)
- dset_data[indx][jndx] = FILLVAL;
-
- // Create a 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 dataspace. Setting maximum size to NULL sets the maximum
- // size to be the current size.
- try {
- filespace_id = H5.H5Screate_simple(RANK, dims, null);
- }
- catch (Exception e) {
- e.printStackTrace();
- }
-
- // Create the dataset creation property list, and set the chunk size.
- try {
- dcpl_id = H5.H5Pcreate(HDF5Constants.H5P_DATASET_CREATE);
- }
- catch (Exception e) {
- e.printStackTrace();
- }
-
- // Set the allocation time to "early". This way we can be sure
- // that reading from the dataset immediately after creation will
- // return the fill value.
- try {
- if (dcpl_id >= 0)
- H5.H5Pset_alloc_time(dcpl_id, HDF5Constants.H5D_ALLOC_TIME_EARLY);
- }
- catch (Exception e) {
- e.printStackTrace();
- }
-
- System.out.println("Creating datasets...");
- System.out.println(DATASETNAME1 + " has allocation time H5D_ALLOC_TIME_LATE");
- System.out.println(DATASETNAME2 + " has allocation time H5D_ALLOC_TIME_EARLY");
- System.out.println();
-
- // Create the dataset using the dataset default creation property list.
- try {
- if ((file_id >= 0) && (filespace_id >= 0))
- dataset_id1 = H5.H5Dcreate(file_id, DATASETNAME1, HDF5Constants.H5T_NATIVE_INT, filespace_id,
- HDF5Constants.H5P_DEFAULT, HDF5Constants.H5P_DEFAULT,
- HDF5Constants.H5P_DEFAULT);
- }
- catch (Exception e) {
- e.printStackTrace();
- }
-
- // Create the dataset using the dataset creation property list.
- try {
- if ((file_id >= 0) && (filespace_id >= 0) && (dcpl_id >= 0))
- dataset_id2 = H5.H5Dcreate(file_id, DATASETNAME2, HDF5Constants.H5T_NATIVE_INT, filespace_id,
- HDF5Constants.H5P_DEFAULT, dcpl_id, HDF5Constants.H5P_DEFAULT);
- }
- catch (Exception e) {
- e.printStackTrace();
- }
-
- // Retrieve and print space status and storage size for dset1.
- try {
- if (dataset_id1 >= 0)
- space_status = H5.H5Dget_space_status(dataset_id1);
- }
- catch (Exception e) {
- e.printStackTrace();
- }
- try {
- if (dataset_id1 >= 0)
- storage_size = H5.H5Dget_storage_size(dataset_id1);
- }
- catch (Exception e) {
- e.printStackTrace();
- }
- String the_space = " ";
- if (H5D_space_status.get(space_status) != H5D_space_status.H5D_SPACE_STATUS_ALLOCATED)
- the_space += "not ";
- System.out.println("Space for " + DATASETNAME1 + " has" + the_space + "been allocated.");
- System.out.println("Storage size for " + DATASETNAME1 + " is: " + storage_size + " bytes.");
-
- // Retrieve and print space status and storage size for dset2.
- try {
- if (dataset_id2 >= 0)
- space_status = H5.H5Dget_space_status(dataset_id2);
- }
- catch (Exception e) {
- e.printStackTrace();
- }
- try {
- if (dataset_id2 >= 0)
- storage_size = H5.H5Dget_storage_size(dataset_id2);
- }
- catch (Exception e) {
- e.printStackTrace();
- }
- the_space = " ";
- if (H5D_space_status.get(space_status) != H5D_space_status.H5D_SPACE_STATUS_ALLOCATED)
- the_space += "not ";
- System.out.println("Space for " + DATASETNAME2 + " has" + the_space + "been allocated.");
- System.out.println("Storage size for " + DATASETNAME2 + " is: " + storage_size + " bytes.");
- System.out.println();
-
- System.out.println("Writing data...");
- System.out.println();
-
- // Write the data to the datasets.
- try {
- if (dataset_id1 >= 0)
- H5.H5Dwrite(dataset_id1, HDF5Constants.H5T_NATIVE_INT, HDF5Constants.H5S_ALL,
- HDF5Constants.H5S_ALL, HDF5Constants.H5P_DEFAULT, dset_data[0]);
- }
- catch (Exception e) {
- e.printStackTrace();
- }
- try {
- if (dataset_id2 >= 0)
- H5.H5Dwrite(dataset_id2, HDF5Constants.H5T_NATIVE_INT, HDF5Constants.H5S_ALL,
- HDF5Constants.H5S_ALL, HDF5Constants.H5P_DEFAULT, dset_data[0]);
- }
- catch (Exception e) {
- e.printStackTrace();
- }
-
- // Retrieve and print space status and storage size for dset1.
- try {
- if (dataset_id1 >= 0)
- space_status = H5.H5Dget_space_status(dataset_id1);
- }
- catch (Exception e) {
- e.printStackTrace();
- }
- try {
- if (dataset_id1 >= 0)
- storage_size = H5.H5Dget_storage_size(dataset_id1);
- }
- catch (Exception e) {
- e.printStackTrace();
- }
- the_space = " ";
- if (H5D_space_status.get(space_status) != H5D_space_status.H5D_SPACE_STATUS_ALLOCATED)
- the_space += "not ";
- System.out.println("Space for " + DATASETNAME1 + " has" + the_space + "been allocated.");
- System.out.println("Storage size for " + DATASETNAME1 + " is: " + storage_size + " bytes.");
-
- // Retrieve and print space status and storage size for dset2.
- try {
- if (dataset_id2 >= 0)
- space_status = H5.H5Dget_space_status(dataset_id2);
- }
- catch (Exception e) {
- e.printStackTrace();
- }
- try {
- if (dataset_id2 >= 0)
- storage_size = H5.H5Dget_storage_size(dataset_id2);
- }
- catch (Exception e) {
- e.printStackTrace();
- }
- the_space = " ";
- if (H5D_space_status.get(space_status) != H5D_space_status.H5D_SPACE_STATUS_ALLOCATED)
- the_space += "not ";
- System.out.println("Space for " + DATASETNAME2 + " has" + the_space + "been allocated.");
- System.out.println("Storage size for " + DATASETNAME2 + " is: " + storage_size + " bytes.");
- System.out.println();
-
- // End access to the dataset and release resources used by it.
- try {
- if (dcpl_id >= 0)
- H5.H5Pclose(dcpl_id);
- }
- catch (Exception e) {
- e.printStackTrace();
- }
-
- try {
- if (dataset_id1 >= 0)
- H5.H5Dclose(dataset_id1);
- }
- catch (Exception e) {
- e.printStackTrace();
- }
-
- try {
- if (dataset_id2 >= 0)
- H5.H5Dclose(dataset_id2);
- }
- catch (Exception e) {
- e.printStackTrace();
- }
-
- try {
- if (filespace_id >= 0)
- H5.H5Sclose(filespace_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_D_Alloc.allocation(); }
-}
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