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-rw-r--r--java/examples/datasets/H5Ex_D_Checksum.java100
1 files changed, 53 insertions, 47 deletions
diff --git a/java/examples/datasets/H5Ex_D_Checksum.java b/java/examples/datasets/H5Ex_D_Checksum.java
index 781dd68..7b01176 100644
--- a/java/examples/datasets/H5Ex_D_Checksum.java
+++ b/java/examples/datasets/H5Ex_D_Checksum.java
@@ -30,42 +30,46 @@ import hdf.hdf5lib.H5;
import hdf.hdf5lib.HDF5Constants;
public class H5Ex_D_Checksum {
- private static String FILENAME = "H5Ex_D_Checksum.h5";
+ private static String FILENAME = "H5Ex_D_Checksum.h5";
private static String DATASETNAME = "DS1";
- private static final int DIM_X = 32;
- private static final int DIM_Y = 64;
- private static final int CHUNK_X = 4;
- private static final int CHUNK_Y = 8;
- private static final int RANK = 2;
- private static final int NDIMS = 2;
+ private static final int DIM_X = 32;
+ private static final int DIM_Y = 64;
+ private static final int CHUNK_X = 4;
+ private static final int CHUNK_Y = 8;
+ private static final int RANK = 2;
+ private static final int NDIMS = 2;
// Values for the status of space allocation
enum H5Z_filter {
- H5Z_FILTER_ERROR(-1), H5Z_FILTER_NONE(0), H5Z_FILTER_DEFLATE(1), H5Z_FILTER_SHUFFLE(2), H5Z_FILTER_FLETCHER32(3), H5Z_FILTER_SZIP(
- 4), H5Z_FILTER_NBIT(5), H5Z_FILTER_SCALEOFFSET(6), H5Z_FILTER_RESERVED(256), H5Z_FILTER_MAX(65535);
+ H5Z_FILTER_ERROR(-1),
+ H5Z_FILTER_NONE(0),
+ H5Z_FILTER_DEFLATE(1),
+ H5Z_FILTER_SHUFFLE(2),
+ H5Z_FILTER_FLETCHER32(3),
+ H5Z_FILTER_SZIP(4),
+ H5Z_FILTER_NBIT(5),
+ H5Z_FILTER_SCALEOFFSET(6),
+ H5Z_FILTER_RESERVED(256),
+ H5Z_FILTER_MAX(65535);
private static final Map<Integer, H5Z_filter> lookup = new HashMap<Integer, H5Z_filter>();
- static {
+ static
+ {
for (H5Z_filter s : EnumSet.allOf(H5Z_filter.class))
lookup.put(s.getCode(), s);
}
private int code;
- H5Z_filter(int layout_type) {
- this.code = layout_type;
- }
+ H5Z_filter(int layout_type) { this.code = layout_type; }
- public int getCode() {
- return this.code;
- }
+ public int getCode() { return this.code; }
- public static H5Z_filter get(int code) {
- return lookup.get(code);
- }
+ public static H5Z_filter get(int code) { return lookup.get(code); }
}
- private static boolean checkFletcher32Filter() {
+ private static boolean checkFletcher32Filter()
+ {
try {
int available = H5.H5Zfilter_avail(H5Z_filter.H5Z_FILTER_FLETCHER32.getCode());
if (available == 0) {
@@ -79,8 +83,8 @@ public class H5Ex_D_Checksum {
try {
int filter_info = H5.H5Zget_filter_info(HDF5Constants.H5Z_FILTER_FLETCHER32);
- if (((filter_info & HDF5Constants.H5Z_FILTER_CONFIG_ENCODE_ENABLED) == 0)
- || ((filter_info & HDF5Constants.H5Z_FILTER_CONFIG_DECODE_ENABLED) == 0)) {
+ if (((filter_info & HDF5Constants.H5Z_FILTER_CONFIG_ENCODE_ENABLED) == 0) ||
+ ((filter_info & HDF5Constants.H5Z_FILTER_CONFIG_DECODE_ENABLED) == 0)) {
System.out.println("N-Bit filter not available for encoding and decoding.");
return false;
}
@@ -91,13 +95,14 @@ public class H5Ex_D_Checksum {
return true;
}
- private static void writeChecksum() {
- long file_id = HDF5Constants.H5I_INVALID_HID;
+ private static void writeChecksum()
+ {
+ long file_id = HDF5Constants.H5I_INVALID_HID;
long filespace_id = HDF5Constants.H5I_INVALID_HID;
- long dataset_id = HDF5Constants.H5I_INVALID_HID;
- long dcpl_id = HDF5Constants.H5I_INVALID_HID;
- long[] dims = { DIM_X, DIM_Y };
- long[] chunk_dims = { CHUNK_X, CHUNK_Y };
+ long dataset_id = HDF5Constants.H5I_INVALID_HID;
+ long dcpl_id = HDF5Constants.H5I_INVALID_HID;
+ long[] dims = {DIM_X, DIM_Y};
+ long[] chunk_dims = {CHUNK_X, CHUNK_Y};
int[][] dset_data = new int[DIM_X][DIM_Y];
// Initialize data.
@@ -108,7 +113,7 @@ public class H5Ex_D_Checksum {
// Create a new file using default properties.
try {
file_id = H5.H5Fcreate(FILENAME, HDF5Constants.H5F_ACC_TRUNC, HDF5Constants.H5P_DEFAULT,
- HDF5Constants.H5P_DEFAULT);
+ HDF5Constants.H5P_DEFAULT);
}
catch (Exception e) {
e.printStackTrace();
@@ -140,7 +145,7 @@ public class H5Ex_D_Checksum {
try {
if ((file_id >= 0) && (filespace_id >= 0) && (dcpl_id >= 0))
dataset_id = H5.H5Dcreate(file_id, DATASETNAME, HDF5Constants.H5T_STD_I32LE, filespace_id,
- HDF5Constants.H5P_DEFAULT, dcpl_id, HDF5Constants.H5P_DEFAULT);
+ HDF5Constants.H5P_DEFAULT, dcpl_id, HDF5Constants.H5P_DEFAULT);
}
catch (Exception e) {
e.printStackTrace();
@@ -149,8 +154,8 @@ public class H5Ex_D_Checksum {
// Write the data to the dataset.
try {
if (dataset_id >= 0)
- H5.H5Dwrite(dataset_id, HDF5Constants.H5T_NATIVE_INT, HDF5Constants.H5S_ALL, HDF5Constants.H5S_ALL,
- HDF5Constants.H5P_DEFAULT, dset_data);
+ H5.H5Dwrite(dataset_id, HDF5Constants.H5T_NATIVE_INT, HDF5Constants.H5S_ALL,
+ HDF5Constants.H5S_ALL, HDF5Constants.H5P_DEFAULT, dset_data);
}
catch (Exception e) {
e.printStackTrace();
@@ -191,10 +196,11 @@ public class H5Ex_D_Checksum {
}
}
- private static void readChecksum() {
- long file_id = HDF5Constants.H5I_INVALID_HID;
- long dataset_id = HDF5Constants.H5I_INVALID_HID;
- long dcpl_id = HDF5Constants.H5I_INVALID_HID;
+ private static void readChecksum()
+ {
+ long file_id = HDF5Constants.H5I_INVALID_HID;
+ long dataset_id = HDF5Constants.H5I_INVALID_HID;
+ long dcpl_id = HDF5Constants.H5I_INVALID_HID;
int[][] dset_data = new int[DIM_X][DIM_Y];
// Open an existing file.
@@ -228,14 +234,14 @@ public class H5Ex_D_Checksum {
try {
if (dcpl_id >= 0) {
// Java lib requires a valid filter_name object and cd_values
- int[] flags = { 0 };
- long[] cd_nelmts = { 1 };
- int[] cd_values = { 0 };
- String[] filter_name = { "" };
- int[] filter_config = { 0 };
- int filter_type = -1;
- filter_type = H5
- .H5Pget_filter(dcpl_id, 0, flags, cd_nelmts, cd_values, 120, filter_name, filter_config);
+ int[] flags = {0};
+ long[] cd_nelmts = {1};
+ int[] cd_values = {0};
+ String[] filter_name = {""};
+ int[] filter_config = {0};
+ int filter_type = -1;
+ filter_type = H5.H5Pget_filter(dcpl_id, 0, flags, cd_nelmts, cd_values, 120, filter_name,
+ filter_config);
System.out.print("Filter type is: ");
switch (H5Z_filter.get(filter_type)) {
case H5Z_FILTER_DEFLATE:
@@ -264,7 +270,7 @@ public class H5Ex_D_Checksum {
try {
if (dataset_id >= 0) {
int status = H5.H5Dread(dataset_id, HDF5Constants.H5T_NATIVE_INT, HDF5Constants.H5S_ALL,
- HDF5Constants.H5S_ALL, HDF5Constants.H5P_DEFAULT, dset_data);
+ HDF5Constants.H5S_ALL, HDF5Constants.H5P_DEFAULT, dset_data);
// Check if the read was successful. Normally we do not perform
// error checking in these examples for the sake of clarity, but in
// this case we will make an exception because this is how the
@@ -328,7 +334,8 @@ public class H5Ex_D_Checksum {
}
}
- public static void main(String[] args) {
+ public static void main(String[] args)
+ {
// Check if the Fletcher32 filter is available and can be used for
// both encoding and decoding. Normally we do not perform error
// checking in these examples for the sake of clarity, but in this
@@ -340,5 +347,4 @@ public class H5Ex_D_Checksum {
H5Ex_D_Checksum.readChecksum();
}
}
-
}
generated by cgit v0.12 at 2024-07-22 06:36:29 (GMT)