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-rw-r--r--java/examples/datatypes/H5Ex_T_CompoundAttribute.java95
1 files changed, 55 insertions, 40 deletions
diff --git a/java/examples/datatypes/H5Ex_T_CompoundAttribute.java b/java/examples/datatypes/H5Ex_T_CompoundAttribute.java
index f331a1e..93e15fd 100644
--- a/java/examples/datatypes/H5Ex_T_CompoundAttribute.java
+++ b/java/examples/datatypes/H5Ex_T_CompoundAttribute.java
@@ -23,6 +23,9 @@ 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;
@@ -37,8 +40,6 @@ public class H5Ex_T_CompoundAttribute {
protected static final int DOUBLESIZE = 8;
protected final static int MAXSTRINGSIZE = 80;
- // Using Java Externalization will add a two-byte object header in
- // the stream, which needs to be called out in the datatypes.
static class Sensor_Datatype {
static int numberMembers = 4;
static int[] memberDims = {1, 1, 1, 1};
@@ -90,6 +91,14 @@ public class H5Ex_T_CompoundAttribute {
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)
@@ -118,6 +127,24 @@ public class H5Ex_T_CompoundAttribute {
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()
{
@@ -130,22 +157,22 @@ public class H5Ex_T_CompoundAttribute {
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 attribute_id = HDF5Constants.H5I_INVALID_HID;
- long[] dims = {DIM0};
- Sensor[] object_data = new Sensor[DIM0];
- byte[] dset_data = null;
+ 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 attribute_id = HDF5Constants.H5I_INVALID_HID;
+ long[] dims = {DIM0};
+ ArrayList[] object_data = new ArrayList[DIM0];
+ byte[] dset_data = null;
// Initialize data.
- object_data[0] = new Sensor(1153, new String("Exterior (static)"), 53.23, 24.57);
- object_data[1] = new Sensor(1184, new String("Intake"), 55.12, 22.95);
- object_data[2] = new Sensor(1027, new String("Intake manifold"), 103.55, 31.23);
- object_data[3] = new Sensor(1313, new String("Exhaust manifold"), 1252.89, 84.11);
+ 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 {
@@ -238,15 +265,9 @@ public class H5Ex_T_CompoundAttribute {
}
// Write the compound data.
- dset_data = new byte[(int)dims[0] * (int)Sensor_Datatype.getDataSize()];
- ByteBuffer outBuf = ByteBuffer.wrap(dset_data);
- outBuf.order(ByteOrder.nativeOrder());
- for (int indx = 0; indx < (int)dims[0]; indx++) {
- object_data[indx].writeBuffer(outBuf, indx * (int)Sensor_Datatype.getDataSize());
- }
try {
if ((attribute_id >= 0) && (memtype_id >= 0))
- H5.H5Awrite(attribute_id, memtype_id, dset_data);
+ H5.H5AwriteVL(attribute_id, memtype_id, (Object[])object_data);
}
catch (Exception e) {
e.printStackTrace();
@@ -316,15 +337,14 @@ public class H5Ex_T_CompoundAttribute {
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 attribute_id = HDF5Constants.H5I_INVALID_HID;
- long[] dims = {DIM0};
- Sensor[] object_data2;
- byte[] dset_data;
+ 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 attribute_id = HDF5Constants.H5I_INVALID_HID;
+ long[] dims = {DIM0};
+ Sensor[] object_data2 = new Sensor[(int)dims[0]];
// Open an existing file.
try {
@@ -398,20 +418,15 @@ public class H5Ex_T_CompoundAttribute {
e.printStackTrace();
}
- // allocate memory for read buffer.
- dset_data = new byte[(int)dims[0] * (int)Sensor_Datatype.getDataSize()];
-
- object_data2 = new Sensor[(int)dims[0]];
+ ArrayList[] object_data = new ArrayList[(int)dims[0]];
// Read data.
try {
if ((attribute_id >= 0) && (memtype_id >= 0))
- H5.H5Aread(attribute_id, memtype_id, dset_data);
+ H5.H5AreadVL(attribute_id, memtype_id, (Object[])object_data);
- ByteBuffer inBuf = ByteBuffer.wrap(dset_data);
- inBuf.order(ByteOrder.nativeOrder());
for (int indx = 0; indx < (int)dims[0]; indx++) {
- object_data2[indx] = new Sensor(inBuf, indx * (int)Sensor_Datatype.getDataSize());
+ object_data2[indx] = new Sensor(object_data[indx]);
}
}
catch (Exception e) {
generated by cgit v0.12 at 2024-07-04 22:52:10 (GMT)