C++ DSetCreatPropList::getId方法代码示例

//--------------------------------------------------------------------------
// Function:	CommonFG::createDataSet
///\brief	Creates a new dataset at this location.
///\param	name  - IN: Name of the dataset to create
///\param	data_type - IN: Datatype of the dataset
///\param	data_space - IN: Dataspace for the dataset
///\param	create_plist - IN: Creation properly list for the dataset
///\return	DataSet instance
///\exception	H5::FileIException or H5::GroupIException
// Programmer	Binh-Minh Ribler - 2000
//--------------------------------------------------------------------------
DataSet CommonFG::createDataSet( const char* name, const DataType& data_type, const DataSpace& data_space, const DSetCreatPropList& create_plist ) const
{
   // Obtain identifiers for C API
   hid_t type_id = data_type.getId();
   hid_t space_id = data_space.getId();
   hid_t create_plist_id = create_plist.getId();

   // Call C routine H5Dcreate2 to create the named dataset
   hid_t dataset_id = H5Dcreate2( getLocId(), name, type_id, space_id, H5P_DEFAULT, create_plist_id, H5P_DEFAULT );

   // If the creation of the dataset failed, throw an exception
   if( dataset_id < 0 )
   {
      throwException("createDataSet", "H5Dcreate2 failed");
   }

   // No failure, create and return the DataSet object
   DataSet dataset( dataset_id );
   return( dataset );
}

//.........这里部分代码省略.........
	/*----------------------------------------------------------------------
	* STEP 6: Test partial I/O by writing to and then reading from a
	* hyperslab of the dataset.  The hyperslab does not line up on chunk
	* boundaries (we know that case already works from above tests).
	*----------------------------------------------------------------------
	*/
	SUBTEST("Compression (partial I/O)");

	const hsize_t	hs_size[2] = {4, 50};
	const hsize_t	hs_offset[2] = {7, 30};
	for (i = 0; i < hs_size[0]; i++) {
	    for (j = 0; j < hs_size[1]; j++) {
		points[hs_offset[0]+i][hs_offset[1]+j] = rand ();
	    }
	}
	space1.selectHyperslab( H5S_SELECT_SET, hs_size, hs_offset );
	dataset->write ((void*)points, PredType::NATIVE_INT, space1, space1, xfer);
	dataset->read ((void*)check, PredType::NATIVE_INT, space1, space1, xfer);

	// Check that the values read are the same as the values written
	for (i=0; i<hs_size[0]; i++) {
	for (j=0; j<hs_size[1]; j++) {
	    if (points[hs_offset[0]+i][hs_offset[1]+j] !=
		check[hs_offset[0]+i][hs_offset[1]+j]) {
		H5_FAILED();
		cerr << "    Read different values than written.\n" << endl;
		cerr << "    At index " << (unsigned long)(hs_offset[0]+i) <<
		   "," << (unsigned long)(hs_offset[1]+j) << endl;

		cerr << "    At original: " << (int)points[hs_offset[0]+i][hs_offset[1]+j] << endl;
		cerr << "    At returned: " << (int)check[hs_offset[0]+i][hs_offset[1]+j] << endl;
		throw Exception("test_compression", "Failed in partial I/O");
	    }
	} // for j
	} // for i

	delete dataset;
	dataset = NULL;

	PASSED();

#else
	SUBTEST("deflate filter");
	SKIPPED();
	cerr << not_supported << endl;
#endif

	/*----------------------------------------------------------------------
	* STEP 7: Register an application-defined compression method and use it
	* to write and then read the dataset.
	*----------------------------------------------------------------------
	*/
	SUBTEST("Compression (app-defined method)");

        if (H5Zregister (H5Z_BOGUS)<0)
		throw Exception("test_compression", "Failed in app-defined method");
	if (H5Pset_filter (dscreatplist.getId(), H5Z_FILTER_BOGUS, 0, 0, NULL)<0)
	    throw Exception("test_compression", "Failed in app-defined method");
	dscreatplist.setFilter (H5Z_FILTER_BOGUS, 0, 0, NULL);

	DataSpace space2 (2, size, NULL);
	dataset = new DataSet (file.createDataSet (DSET_BOGUS_NAME, PredType::NATIVE_INT, space2, dscreatplist));

	dataset->write ((void*)points, PredType::NATIVE_INT, DataSpace::ALL, DataSpace::ALL, xfer);
	dataset->read ((void*)check, PredType::NATIVE_INT, DataSpace::ALL, DataSpace::ALL, xfer);

	// Check that the values read are the same as the values written
	for (i = 0; i < size[0]; i++)
	    for (j = 0; j < size[1]; j++)
	    {
		int status = check_values (i, j, points[i][j], check[i][j]);
		if (status == -1)
		    throw Exception("test_compression", "Failed in app-defined method");
	    }

	PASSED();

	/*----------------------------------------------------------------------
	* Cleanup
	*----------------------------------------------------------------------
	*/
	delete dataset;
	delete [] tconv_buf;
	return 0;
    } // end try

    // catch all dataset, file, space, and plist exceptions
    catch (Exception E)
    {
	cerr << " FAILED" << endl;
	cerr << "    <<<  " << E.getDetailMsg() << "  >>>" << endl << endl;

	// clean up and return with failure
	if (dataset != NULL)
	    delete dataset;
	if (tconv_buf)
	    delete [] tconv_buf;
	return -1;
    }
}   // test_compression