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Diffstat (limited to 'java/examples/datatypes/H5Ex_T_Compound.java')
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diff --git a/java/examples/datatypes/H5Ex_T_Compound.java b/java/examples/datatypes/H5Ex_T_Compound.java deleted file mode 100644 index 7a46bcf..0000000 --- a/java/examples/datatypes/H5Ex_T_Compound.java +++ /dev/null @@ -1,462 +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 compound - datatypes to a dataset. The program first writes - compound structures to a dataset 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 java.nio.ByteBuffer; -import java.nio.ByteOrder; -import java.nio.charset.Charset; -import java.util.ArrayList; -import java.util.Arrays; -import java.util.List; - -import hdf.hdf5lib.H5; -import hdf.hdf5lib.HDF5Constants; - -public class H5Ex_T_Compound { - private static String FILENAME = "H5Ex_T_Compound.h5"; - private static String DATASETNAME = "DS1"; - private static final int DIM0 = 4; - private static final int RANK = 1; - protected static final int INTEGERSIZE = 4; - protected static final int DOUBLESIZE = 8; - protected final static int MAXSTRINGSIZE = 80; - - static class Sensor_Datatype { - static int numberMembers = 4; - static int[] memberDims = {1, 1, 1, 1}; - - static String[] memberNames = {"Serial number", "Location", "Temperature (F)", "Pressure (inHg)"}; - static long[] memberMemTypes = {HDF5Constants.H5T_NATIVE_INT, HDF5Constants.H5T_C_S1, - HDF5Constants.H5T_NATIVE_DOUBLE, HDF5Constants.H5T_NATIVE_DOUBLE}; - static long[] memberFileTypes = {HDF5Constants.H5T_STD_I32BE, HDF5Constants.H5T_C_S1, - HDF5Constants.H5T_IEEE_F64BE, HDF5Constants.H5T_IEEE_F64BE}; - static int[] memberStorage = {INTEGERSIZE, MAXSTRINGSIZE, DOUBLESIZE, DOUBLESIZE}; - - // Data size is the storage size for the members. - static long getTotalDataSize() - { - long data_size = 0; - for (int indx = 0; indx < numberMembers; indx++) - data_size += memberStorage[indx] * memberDims[indx]; - return DIM0 * data_size; - } - - static long getDataSize() - { - long data_size = 0; - for (int indx = 0; indx < numberMembers; indx++) - data_size += memberStorage[indx] * memberDims[indx]; - return data_size; - } - - static int getOffset(int memberItem) - { - int data_offset = 0; - for (int indx = 0; indx < memberItem; indx++) - data_offset += memberStorage[indx]; - return data_offset; - } - } - - static class Sensor { - public int serial_no; - public String location; - public double temperature; - public double pressure; - - Sensor(int serial_no, String location, double temperature, double pressure) - { - this.serial_no = serial_no; - this.location = location; - this.temperature = temperature; - this.pressure = pressure; - } - - Sensor(List data) - { - this.serial_no = (int)data.get(0); - this.location = (String)data.get(1); - this.temperature = (double)data.get(2); - this.pressure = (double)data.get(3); - } - - Sensor(ByteBuffer databuf, int dbposition) { readBuffer(databuf, dbposition); } - - void writeBuffer(ByteBuffer databuf, int dbposition) - { - databuf.putInt(dbposition + Sensor_Datatype.getOffset(0), serial_no); - byte[] temp_str = location.getBytes(Charset.forName("UTF-8")); - int arraylen = (temp_str.length > MAXSTRINGSIZE) ? MAXSTRINGSIZE : temp_str.length; - for (int ndx = 0; ndx < arraylen; ndx++) - databuf.put(dbposition + Sensor_Datatype.getOffset(1) + ndx, temp_str[ndx]); - for (int ndx = arraylen; ndx < MAXSTRINGSIZE; ndx++) - databuf.put(dbposition + Sensor_Datatype.getOffset(1) + arraylen, (byte)0); - databuf.putDouble(dbposition + Sensor_Datatype.getOffset(2), temperature); - databuf.putDouble(dbposition + Sensor_Datatype.getOffset(3), pressure); - } - - void readBuffer(ByteBuffer databuf, int dbposition) - { - this.serial_no = databuf.getInt(dbposition + Sensor_Datatype.getOffset(0)); - ByteBuffer stringbuf = databuf.duplicate(); - stringbuf.position(dbposition + Sensor_Datatype.getOffset(1)); - stringbuf.limit(dbposition + Sensor_Datatype.getOffset(1) + MAXSTRINGSIZE); - byte[] bytearr = new byte[stringbuf.remaining()]; - stringbuf.get(bytearr); - this.location = new String(bytearr, Charset.forName("UTF-8")).trim(); - this.temperature = databuf.getDouble(dbposition + Sensor_Datatype.getOffset(2)); - this.pressure = databuf.getDouble(dbposition + Sensor_Datatype.getOffset(3)); - } - - List get() - { - List data = new ArrayList<>(); - data.add(this.serial_no); - data.add(this.location); - data.add(this.temperature); - data.add(this.pressure); - return data; - } - - void put(List data) - { - this.serial_no = (int)data.get(0); - this.location = (String)data.get(1); - this.temperature = (double)data.get(2); - this.pressure = (double)data.get(3); - } - - @Override - public String toString() - { - return String.format("Serial number : " + serial_no + "%n" - + "Location : " + location + "%n" - + "Temperature (F) : " + temperature + "%n" - + "Pressure (inHg) : " + pressure + "%n"); - } - } - - private static void CreateDataset() - { - long file_id = HDF5Constants.H5I_INVALID_HID; - long strtype_id = HDF5Constants.H5I_INVALID_HID; - long memtype_id = HDF5Constants.H5I_INVALID_HID; - long filetype_id = HDF5Constants.H5I_INVALID_HID; - long dataspace_id = HDF5Constants.H5I_INVALID_HID; - long dataset_id = HDF5Constants.H5I_INVALID_HID; - long[] dims = {DIM0}; - ArrayList[] object_data = new ArrayList[DIM0]; - byte[] dset_data = null; - - // Initialize data. - object_data[0] = (ArrayList) new Sensor(1153, new String("Exterior (static)"), 53.23, 24.57).get(); - object_data[1] = (ArrayList) new Sensor(1184, new String("Intake"), 55.12, 22.95).get(); - object_data[2] = (ArrayList) new Sensor(1027, new String("Intake manifold"), 103.55, 31.23).get(); - object_data[3] = (ArrayList) new Sensor(1313, new String("Exhaust manifold"), 1252.89, 84.11).get(); - - // 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 string datatype. - try { - strtype_id = H5.H5Tcopy(HDF5Constants.H5T_C_S1); - if (strtype_id >= 0) - H5.H5Tset_size(strtype_id, MAXSTRINGSIZE); - } - catch (Exception e) { - e.printStackTrace(); - } - - // Create the compound datatype for memory. - try { - memtype_id = H5.H5Tcreate(HDF5Constants.H5T_COMPOUND, Sensor_Datatype.getDataSize()); - if (memtype_id >= 0) { - for (int indx = 0; indx < Sensor_Datatype.numberMembers; indx++) { - long type_id = Sensor_Datatype.memberMemTypes[indx]; - if (type_id == HDF5Constants.H5T_C_S1) - type_id = strtype_id; - H5.H5Tinsert(memtype_id, Sensor_Datatype.memberNames[indx], - Sensor_Datatype.getOffset(indx), type_id); - } - } - } - catch (Exception e) { - e.printStackTrace(); - } - - // Create the compound datatype for the file. Because the standard - // types we are using for the file may have different sizes than - // the corresponding native types, we must manually calculate the - // offset of each member. - try { - filetype_id = H5.H5Tcreate(HDF5Constants.H5T_COMPOUND, Sensor_Datatype.getDataSize()); - if (filetype_id >= 0) { - for (int indx = 0; indx < Sensor_Datatype.numberMembers; indx++) { - long type_id = Sensor_Datatype.memberFileTypes[indx]; - if (type_id == HDF5Constants.H5T_C_S1) - type_id = strtype_id; - H5.H5Tinsert(filetype_id, Sensor_Datatype.memberNames[indx], - Sensor_Datatype.getOffset(indx), type_id); - } - } - } - 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 dataset. - try { - if ((file_id >= 0) && (dataspace_id >= 0) && (filetype_id >= 0)) - dataset_id = - H5.H5Dcreate(file_id, DATASETNAME, filetype_id, dataspace_id, HDF5Constants.H5P_DEFAULT, - HDF5Constants.H5P_DEFAULT, HDF5Constants.H5P_DEFAULT); - } - catch (Exception e) { - e.printStackTrace(); - } - - // Write the compound data to the dataset. - try { - if ((dataset_id >= 0) && (memtype_id >= 0)) - H5.H5DwriteVL(dataset_id, memtype_id, HDF5Constants.H5S_ALL, HDF5Constants.H5S_ALL, - HDF5Constants.H5P_DEFAULT, (Object[])object_data); - } - catch (Exception e) { - e.printStackTrace(); - } - - // End access to the dataset and release resources used by it. - 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(); - } - - try { - if (strtype_id >= 0) - H5.H5Tclose(strtype_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 strtype_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[] dims = {DIM0}; - Sensor[] object_data2 = new Sensor[(int)dims[0]]; - - // 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(); - } - - // Get dataspace and allocate memory for read buffer. - try { - if (dataset_id >= 0) - dataspace_id = H5.H5Dget_space(dataset_id); - } - catch (Exception e) { - e.printStackTrace(); - } - - try { - if (dataspace_id >= 0) - H5.H5Sget_simple_extent_dims(dataspace_id, dims, null); - } - catch (Exception e) { - e.printStackTrace(); - } - - // Create string datatype. - try { - strtype_id = H5.H5Tcopy(HDF5Constants.H5T_C_S1); - if (strtype_id >= 0) - H5.H5Tset_size(strtype_id, MAXSTRINGSIZE); - } - catch (Exception e) { - e.printStackTrace(); - } - - // Create the compound datatype for memory. - try { - memtype_id = H5.H5Tcreate(HDF5Constants.H5T_COMPOUND, Sensor_Datatype.getDataSize()); - if (memtype_id >= 0) { - for (int indx = 0; indx < Sensor_Datatype.numberMembers; indx++) { - long type_id = Sensor_Datatype.memberMemTypes[indx]; - if (type_id == HDF5Constants.H5T_C_S1) - type_id = strtype_id; - H5.H5Tinsert(memtype_id, Sensor_Datatype.memberNames[indx], - Sensor_Datatype.getOffset(indx), type_id); - } - } - } - catch (Exception e) { - e.printStackTrace(); - } - - ArrayList[] object_data = new ArrayList[(int)dims[0]]; - - // Read data. - try { - if ((dataset_id >= 0) && (memtype_id >= 0)) - H5.H5DreadVL(dataset_id, memtype_id, HDF5Constants.H5S_ALL, HDF5Constants.H5S_ALL, - HDF5Constants.H5P_DEFAULT, (Object[])object_data); - - for (int indx = 0; indx < (int)dims[0]; indx++) { - object_data2[indx] = new Sensor(object_data[indx]); - } - } - catch (Exception e) { - e.printStackTrace(); - } - - // Output the data to the screen. - for (int indx = 0; indx < dims[0]; indx++) { - System.out.println(DATASETNAME + " [" + indx + "]:"); - System.out.println(object_data2[indx].toString()); - } - System.out.println(); - - 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 mem type. - try { - if (memtype_id >= 0) - H5.H5Tclose(memtype_id); - } - catch (Exception e) { - e.printStackTrace(); - } - - try { - if (strtype_id >= 0) - H5.H5Tclose(strtype_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_Compound.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_Compound.ReadDataset(); - } -} |