diff options
Diffstat (limited to 'java/examples/datasets/H5Ex_D_UnlimitedGzip.java')
| -rw-r--r-- | java/examples/datasets/H5Ex_D_UnlimitedGzip.java | 138 |
1 files changed, 71 insertions, 67 deletions
diff --git a/java/examples/datasets/H5Ex_D_UnlimitedGzip.java b/java/examples/datasets/H5Ex_D_UnlimitedGzip.java index 675b1ba..e084641 100644 --- a/java/examples/datasets/H5Ex_D_UnlimitedGzip.java +++ b/java/examples/datasets/H5Ex_D_UnlimitedGzip.java @@ -31,47 +31,48 @@ import hdf.hdf5lib.H5; import hdf.hdf5lib.HDF5Constants; public class H5Ex_D_UnlimitedGzip { - private static String FILENAME = "H5Ex_D_UnlimitedGzip.h5"; + private static String FILENAME = "H5Ex_D_UnlimitedGzip.h5"; private static String DATASETNAME = "DS1"; - private static final int DIM_X = 4; - private static final int DIM_Y = 7; - private static final int EDIM_X = 6; - private static final int EDIM_Y = 10; - private static final int CHUNK_X = 4; - private static final int CHUNK_Y = 4; - private static final int RANK = 2; - private static final int NDIMS = 2; + private static final int DIM_X = 4; + private static final int DIM_Y = 7; + private static final int EDIM_X = 6; + private static final int EDIM_Y = 10; + private static final int CHUNK_X = 4; + private static final int CHUNK_Y = 4; + 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(HDF5Constants.H5Z_FILTER_ERROR), H5Z_FILTER_NONE(HDF5Constants.H5Z_FILTER_NONE), H5Z_FILTER_DEFLATE( - HDF5Constants.H5Z_FILTER_DEFLATE), H5Z_FILTER_SHUFFLE(HDF5Constants.H5Z_FILTER_SHUFFLE), H5Z_FILTER_FLETCHER32( - HDF5Constants.H5Z_FILTER_FLETCHER32), H5Z_FILTER_SZIP(HDF5Constants.H5Z_FILTER_SZIP), H5Z_FILTER_NBIT( - HDF5Constants.H5Z_FILTER_NBIT), H5Z_FILTER_SCALEOFFSET(HDF5Constants.H5Z_FILTER_SCALEOFFSET), H5Z_FILTER_RESERVED( - HDF5Constants.H5Z_FILTER_RESERVED), H5Z_FILTER_MAX(HDF5Constants.H5Z_FILTER_MAX); + H5Z_FILTER_ERROR(HDF5Constants.H5Z_FILTER_ERROR), + H5Z_FILTER_NONE(HDF5Constants.H5Z_FILTER_NONE), + H5Z_FILTER_DEFLATE(HDF5Constants.H5Z_FILTER_DEFLATE), + H5Z_FILTER_SHUFFLE(HDF5Constants.H5Z_FILTER_SHUFFLE), + H5Z_FILTER_FLETCHER32(HDF5Constants.H5Z_FILTER_FLETCHER32), + H5Z_FILTER_SZIP(HDF5Constants.H5Z_FILTER_SZIP), + H5Z_FILTER_NBIT(HDF5Constants.H5Z_FILTER_NBIT), + H5Z_FILTER_SCALEOFFSET(HDF5Constants.H5Z_FILTER_SCALEOFFSET), + H5Z_FILTER_RESERVED(HDF5Constants.H5Z_FILTER_RESERVED), + H5Z_FILTER_MAX(HDF5Constants.H5Z_FILTER_MAX); 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 checkGzipFilter() { + private static boolean checkGzipFilter() + { try { int available = H5.H5Zfilter_avail(HDF5Constants.H5Z_FILTER_DEFLATE); if (available == 0) { @@ -85,8 +86,8 @@ public class H5Ex_D_UnlimitedGzip { try { int filter_info = H5.H5Zget_filter_info(HDF5Constants.H5Z_FILTER_DEFLATE); - 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("gzip filter not available for encoding and decoding."); return false; } @@ -97,14 +98,15 @@ public class H5Ex_D_UnlimitedGzip { return true; } - private static void writeUnlimited() { - long file_id = HDF5Constants.H5I_INVALID_HID; - long dcpl_id = HDF5Constants.H5I_INVALID_HID; + private static void writeUnlimited() + { + long file_id = HDF5Constants.H5I_INVALID_HID; + long dcpl_id = HDF5Constants.H5I_INVALID_HID; long dataspace_id = HDF5Constants.H5I_INVALID_HID; - long dataset_id = HDF5Constants.H5I_INVALID_HID; - long[] dims = { DIM_X, DIM_Y }; - long[] chunk_dims = { CHUNK_X, CHUNK_Y }; - long[] maxdims = { HDF5Constants.H5S_UNLIMITED, HDF5Constants.H5S_UNLIMITED }; + long dataset_id = HDF5Constants.H5I_INVALID_HID; + long[] dims = {DIM_X, DIM_Y}; + long[] chunk_dims = {CHUNK_X, CHUNK_Y}; + long[] maxdims = {HDF5Constants.H5S_UNLIMITED, HDF5Constants.H5S_UNLIMITED}; int[][] dset_data = new int[DIM_X][DIM_Y]; // Initialize the dataset. @@ -115,7 +117,7 @@ public class H5Ex_D_UnlimitedGzip { // 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(); @@ -147,7 +149,7 @@ public class H5Ex_D_UnlimitedGzip { try { if ((file_id >= 0) && (dataspace_id >= 0) && (dcpl_id >= 0)) dataset_id = H5.H5Dcreate(file_id, DATASETNAME, HDF5Constants.H5T_STD_I32LE, dataspace_id, - HDF5Constants.H5P_DEFAULT, dcpl_id, HDF5Constants.H5P_DEFAULT); + HDF5Constants.H5P_DEFAULT, dcpl_id, HDF5Constants.H5P_DEFAULT); } catch (Exception e) { e.printStackTrace(); @@ -156,8 +158,8 @@ public class H5Ex_D_UnlimitedGzip { // 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(); @@ -198,14 +200,15 @@ public class H5Ex_D_UnlimitedGzip { } } - private static void extendUnlimited() { - long file_id = HDF5Constants.H5I_INVALID_HID; + private static void extendUnlimited() + { + long file_id = HDF5Constants.H5I_INVALID_HID; long dataspace_id = HDF5Constants.H5I_INVALID_HID; - long dataset_id = HDF5Constants.H5I_INVALID_HID; - long[] dims = { DIM_X, DIM_Y }; - long[] extdims = { EDIM_X, EDIM_Y }; - long[] start = { 0, 0 }; - long[] count = new long[2]; + long dataset_id = HDF5Constants.H5I_INVALID_HID; + long[] dims = {DIM_X, DIM_Y}; + long[] extdims = {EDIM_X, EDIM_Y}; + long[] start = {0, 0}; + long[] count = new long[2]; int[][] dset_data; int[][] extend_dset_data = new int[EDIM_X][EDIM_Y]; @@ -246,13 +249,13 @@ public class H5Ex_D_UnlimitedGzip { } // Allocate array of pointers to rows. - dset_data = new int[(int) dims[0]][(int) dims[1]]; + dset_data = new int[(int)dims[0]][(int)dims[1]]; // Read the data using the default properties. try { if (dataset_id >= 0) - H5.H5Dread(dataset_id, HDF5Constants.H5T_NATIVE_INT, HDF5Constants.H5S_ALL, HDF5Constants.H5S_ALL, - HDF5Constants.H5P_DEFAULT, dset_data); + H5.H5Dread(dataset_id, HDF5Constants.H5T_NATIVE_INT, HDF5Constants.H5S_ALL, + HDF5Constants.H5S_ALL, HDF5Constants.H5P_DEFAULT, dset_data); } catch (Exception e) { e.printStackTrace(); @@ -314,7 +317,7 @@ public class H5Ex_D_UnlimitedGzip { // Write the data to the selected portion of the dataset. if (dataset_id >= 0) H5.H5Dwrite(dataset_id, HDF5Constants.H5T_NATIVE_INT, HDF5Constants.H5S_ALL, dataspace_id, - HDF5Constants.H5P_DEFAULT, extend_dset_data); + HDF5Constants.H5P_DEFAULT, extend_dset_data); } } catch (Exception e) { @@ -348,12 +351,13 @@ public class H5Ex_D_UnlimitedGzip { } } - private static void readUnlimited() { - long file_id = HDF5Constants.H5I_INVALID_HID; + private static void readUnlimited() + { + long file_id = HDF5Constants.H5I_INVALID_HID; long dataspace_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 dataset_id = HDF5Constants.H5I_INVALID_HID; + long dcpl_id = HDF5Constants.H5I_INVALID_HID; + long[] dims = {DIM_X, DIM_Y}; int[][] dset_data; // Open an existing file. @@ -387,14 +391,14 @@ public class H5Ex_D_UnlimitedGzip { 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: @@ -436,13 +440,13 @@ public class H5Ex_D_UnlimitedGzip { e.printStackTrace(); } // Allocate array of pointers to rows. - dset_data = new int[(int) dims[0]][(int) dims[1]]; + dset_data = new int[(int)dims[0]][(int)dims[1]]; // Read the data using the default properties. try { if (dataset_id >= 0) - H5.H5Dread(dataset_id, HDF5Constants.H5T_NATIVE_INT, HDF5Constants.H5S_ALL, HDF5Constants.H5S_ALL, - HDF5Constants.H5P_DEFAULT, dset_data); + H5.H5Dread(dataset_id, HDF5Constants.H5T_NATIVE_INT, HDF5Constants.H5S_ALL, + HDF5Constants.H5S_ALL, HDF5Constants.H5P_DEFAULT, dset_data); } catch (Exception e) { e.printStackTrace(); @@ -485,7 +489,8 @@ public class H5Ex_D_UnlimitedGzip { } } - public static void main(String[] args) { + public static void main(String[] args) + { // Check if gzip compression is available and can be used for both // compression and decompression. Normally we do not perform error // checking in these examples for the sake of clarity, but in this @@ -497,5 +502,4 @@ public class H5Ex_D_UnlimitedGzip { H5Ex_D_UnlimitedGzip.readUnlimited(); } } - } |