[svn-r3621] This commit was manufactured by cvs2svn to create branch 'hdf5_1_4'.

doc/html/Tutor/examples/java/CreateDataset.java

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+/******************************************************************
+ * CreateDataset.java (for HDF5 tutorial lesson 5)
+ *
+ *   -- Creating a HDF5 Dataset
+ *      (a java conversion from h5_crtdat.c)
+ *
+ ******************************************************************/
+
+import ncsa.hdf.hdf5lib.*;
+import ncsa.hdf.hdf5lib.exceptions.*;
+
+public class CreateDataset
+{
+   public static void main(String []argv) 
+   {
+      final String FILE = "dset.h5";
+      int file_id = -1;       // file identifier 
+      int dataset_id = -1;    // dataset identifier
+      int dataspace_id = -1;  // dataspace identifier   
+      long[] dims = new long[2];
+      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 the data space for the dataset.
+      dims[0] = 4;
+      dims[1] = 6;
+      dataspace_id = H5Screate_simple_wrap (2, dims, null);
+      
+      // Create the dataset. 
+      dataset_id = 
+	  H5Dcreate_wrap (file_id, "/dset",
+			  H5.J2C (HDF5CDataTypes.JH5T_STD_I32BE),
+			  dataspace_id, HDF5Constants.H5P_DEFAULT);
+      
+      // End access to the dataset and release resources used by it.
+      status = H5Dclose_wrap (dataset_id);
+      
+      // Terminate access to the data space. 
+      status = H5Sclose_wrap (dataspace_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 
+	     ("CreateDataset.H5Fcreate_wrap() with HDF5Exception: "
+	      + hdf5e.getMessage());
+      }
+      catch (Exception e)
+      {
+	 System.out.println 
+	     ("CreateDataset.H5Fcreate_wrap() with other Exception: " 
+	      + e.getMessage());
+      }
+      return file_id;
+   }  
+
+
+   // Help function for creating a new simple dataspace and opening it
+   // for access
+   public static int H5Screate_simple_wrap (int rank, long dims[],
+					    long maxdims[])
+   {
+      int dataspace_id = -1;  // dataspace identifier   
+        
+      try 
+      {
+	 // Create the data space for the dataset.
+	 dataspace_id = H5.H5Screate_simple (rank, dims, maxdims);
+      }
+      catch (HDF5Exception hdf5e)
+      {
+	 System.out.println 
+	     ("CreateDataset.H5Screate_simple_wrap() with HDF5Exception: "
+	      + hdf5e.getMessage());
+      }
+      catch (Exception e)
+      {
+	 System.out.println 
+	     ("CreateDataset.H5Screate_simple_wrap() with other Exception: "
+	      + e.getMessage());
+      }
+      return dataspace_id;
+   }
+
+
+   // Help function for creating a dataset
+   public static int H5Dcreate_wrap (int loc_id, String name, int type_id, 
+				     int space_id, int create_plist_id)
+   {
+      int dataset_id = -1;  // dataset identifier   
+   
+      try 
+      {
+	 // Create the dataset
+	  dataset_id = H5.H5Dcreate (loc_id, name, type_id, space_id, 
+				     create_plist_id);
+      }
+      catch (HDF5Exception hdf5e)
+      {
+	 System.out.println 
+	     ("CreateDataset.H5Dcreate_wrap() with HDF5Exception: "
+	      + hdf5e.getMessage());
+      }
+      catch (Exception e)
+      {
+	 System.out.println 
+	     ("CreateDataset.H5Dcreate_wrap() with other Exception: "
+	      + e.getMessage());
+      }
+      return dataset_id;
+   }
+
+
+   // Help function for ending access to the dataset and releasing 
+   // resources used by it.
+   public static int H5Dclose_wrap (int dataset_id)
+   {
+      int status = -1;
+      
+      try 
+      {
+	 // End access to the dataset and release resources used by it. 
+	 status = H5.H5Dclose (dataset_id);
+      }
+      catch (HDF5Exception hdf5e)
+      {
+	 System.out.println 
+	     ("CreateDataset.H5Dclose_wrap() with HDF5Exception: " 
+	      + hdf5e.getMessage());
+      }
+      catch (Exception e)
+      {
+	 System.out.println 
+	     ("CreateDataset.H5Dclose_wrap() with other exception: " 
+	      + e.getMessage());
+      }
+      return status;
+   }
+ 
+
+   // Help function for terminating access to the data space. 
+   public static int H5Sclose_wrap (int dataspace_id)
+   {
+      int status = -1;
+      
+      try 
+      {
+	 // Terminate access to the data space. 
+	 status = H5.H5Sclose (dataspace_id);
+      }
+      catch (HDF5Exception hdf5e)
+      {
+	 System.out.println 
+	     ("CreateDataset.H5Sclose_wrap() with HDF5Exception: " 
+	      + hdf5e.getMessage());
+      }
+      catch (Exception e)
+      {
+	 System.out.println 
+	     ("CreateDataset.H5Sclose_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 
+	     ("CreateDataset.H5Fclose_wrap() with HDF5Exception: " 
+	      + hdf5e.getMessage());
+      }
+      catch (Exception e)
+      {
+	 System.out.println 
+	     ("CreateDataset.H5Fclose_wrap() with other exception: " 
+	      + e.getMessage());
+      }
+      return status;
+   }
+}
+