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Diffstat (limited to 'doc/html/Tutor/examples/java/CreateGroup.java')
-rw-r--r-- | doc/html/Tutor/examples/java/CreateGroup.java | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/doc/html/Tutor/examples/java/CreateGroup.java b/doc/html/Tutor/examples/java/CreateGroup.java new file mode 100644 index 0000000..48ef4af --- /dev/null +++ b/doc/html/Tutor/examples/java/CreateGroup.java @@ -0,0 +1,139 @@ +/****************************************************************** + * CreateGroup.java (for HDF5 tutorial lesson 8) + * + * -- Creating and closing a group + * (a java conversion from h5_crtgrp.c) + * + ******************************************************************/ + +import ncsa.hdf.hdf5lib.*; +import ncsa.hdf.hdf5lib.exceptions.*; + +public class CreateGroup +{ + public static void main(String []argv) + { + final String FILE = "group.h5"; + int file_id = -1; // file identifier + int group_id = -1; // group identifier + int status = -1; + + // Create a new file using default properties. + file_id = H5Fcreate_wrap (FILE, HDF5Constants.H5F_ACC_TRUNC, + HDF5Constants.H5P_DEFAULT, + HDF5Constants.H5P_DEFAULT); + + // Create a group named "/MyGroup" in the file. + group_id = H5Gcreate_wrap (file_id, "/MyGroup", 0); + + // Close the group. + status = H5Gclose_wrap (group_id); + + // Close the file. + status = H5Fclose_wrap (file_id); + } + + + // Help function for creating a new file + public static int H5Fcreate_wrap (String name, int flags, + int create_id, int access_id) + { + int file_id = -1; // file identifier + try + { + // Create a new file using default file properties. + file_id = H5.H5Fcreate (name, flags, create_id, access_id); + } + catch (HDF5Exception hdf5e) + { + System.out.println + ("CreateGroup.H5Fcreate_wrap() with HDF5Exception: " + + hdf5e.getMessage()); + } + catch (Exception e) + { + System.out.println + ("CreateGroup.H5Fcreate_wrap() with other Exception: " + + e.getMessage()); + } + return file_id; + } + + + // Help function for creating a group named "/MyGroup" in the file. + public static int H5Gcreate_wrap (int loc_id, String name, int size_hint) + { + int group_id = -1; // group identifier + try + { + // Create a group + group_id = H5.H5Gcreate (loc_id, name, size_hint); + + } + catch (HDF5Exception hdf5e) + { + System.out.println + ("CreateGroup.H5Gcreate_wrap() with HDF5Exception: " + + hdf5e.getMessage()); + } + catch (Exception e) + { + System.out.println + ("CreateGroup.H5Gcreate_wrap() with other Exception: " + + e.getMessage()); + } + return group_id; + } + + + // Help function for closing the group + public static int H5Gclose_wrap (int group_id) + { + int status = -1; + + try + { + // Close the group + status = H5.H5Gclose (group_id); + } + catch (HDF5Exception hdf5e) + { + System.out.println + ("CreateGroup.H5Gclose_wrap() with HDF5Exception: " + + hdf5e.getMessage()); + } + catch (Exception e) + { + System.out.println + ("CreateGroup.H5Gclose_wrap() with other exception: " + + e.getMessage()); + } + return status; + } + + + // Help function for terminating access to the file. + public static int H5Fclose_wrap (int file_id) + { + int status = -1; + + try + { + // Terminate access to the file. + status = H5.H5Fclose (file_id); + } + catch (HDF5Exception hdf5e) + { + System.out.println + ("CreateGroup.H5Fclose_wrap() with HDF5Exception: " + + hdf5e.getMessage()); + } + catch (Exception e) + { + System.out.println + ("CreateGroup.H5Fclose_wrap() with other exception: " + + e.getMessage()); + } + return status; + } +} |