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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright by the Board of Trustees of the University of Illinois. *
* All rights reserved. *
* *
* This file is part of HDF5. The full HDF5 copyright notice, including *
* terms governing use, modification, and redistribution, is contained in *
* the files COPYING and Copyright.html. COPYING can be found at the root *
* of the source code distribution tree; Copyright.html can be found at the *
* root level of an installed copy of the electronic HDF5 document set and *
* is linked from the top-level documents page. It can also be found at *
* http://hdf.ncsa.uiuc.edu/HDF5/doc/Copyright.html. If you do not have *
* access to either file, you may request a copy from hdfhelp@ncsa.uiuc.edu. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
#include <string>
#include "H5Include.h"
#include "H5RefCounter.h"
#include "H5Exception.h"
#include "H5IdComponent.h"
#include "H5Idtemplates.h"
#include "H5PropList.h"
#include "H5Object.h"
#include "H5AbstractDs.h"
#include "H5FaccProp.h"
#include "H5FcreatProp.h"
#include "H5DcreatProp.h"
#include "H5DxferProp.h"
#include "H5DataSpace.h"
#include "H5DataSet.h"
#include "H5CommonFG.h"
#include "H5Group.h"
#include "H5File.h"
#include "H5Alltypes.h"
#ifndef H5_NO_NAMESPACE
namespace H5 {
#endif
// Default constructor
Group::Group() : H5Object() {}
// Copy constructor: makes a copy of the original Group object
Group::Group( const Group& original ) : H5Object( original ) {}
// Get id of the location, which id the group id here; used by CommonFG
// member functions
hid_t Group::getLocId() const
{
return( getId() );
}
// Creates a copy of an existing Group using its id
Group::Group( const hid_t group_id ) : H5Object( group_id ) {}
// Returns the number of objects in the group.
hsize_t Group::getNumObjs() const
{
hsize_t num_objs;
herr_t ret_value = H5Gget_num_objs(id, &num_objs);
if(ret_value < 0)
{
throwException("getNumObjs", "H5Gget_num_objs failed");
}
return (num_objs);
}
// Retrieves the name of an object in a given group by giving index
ssize_t Group::getObjnameByIdx(hsize_t idx, string& name, size_t size) const
{
char* name_C = new char[size];
ssize_t name_len = H5Gget_objname_by_idx(id, idx, name_C, size);
if(name_len < 0)
{
throwException("getObjnameByIdx", "H5Gget_objname_by_idx failed");
}
name = string( name_C );
delete [] name_C;
return (name_len);
}
// Returns the type of an object in a given group by giving index
int Group::getObjTypeByIdx(hsize_t idx) const
{
int obj_type = H5Gget_objtype_by_idx(id, idx);
if (obj_type == H5G_UNKNOWN)
{
throwException("getObjTypeByIdx", "H5Gget_objtype_by_idx failed");
}
return (obj_type);
}
int Group::getObjTypeByIdx(hsize_t idx, string& type_name) const
{
int obj_type = H5Gget_objtype_by_idx(id, idx);
switch (obj_type)
{
case H5G_GROUP: type_name = string("group"); break;
case H5G_DATASET: type_name = string("dataset"); break;
case H5G_TYPE: type_name = string("datatype"); break;
case H5G_UNKNOWN:
default:
{
throwException("getObjTypeByIdx", "H5Gget_objtype_by_idx failed");
}
}
return (obj_type);
}
// Iterates a user's function over the entries of a group.
//int Group::iterateElems( const string& name, int *idx, H5G_iterate_t op , void *op_data )
//{
//return( iterateElems( name.c_str(), idx, op, op_data ));
//}
//int Group::iterateElems( const char* name, int *idx, H5G_iterate_t op , void *op_data )
//{
//int ret_value = H5Giterate( id, name, idx, op, op_data );
//if( ret_value >= 0 )
//return( ret_value );
//else // raise exception when H5Aiterate returns a negative value
//{
//throw GroupIException("Group::iterateElems", "H5Giterate failed");
//}
//}
// Calls the C API H5Gclose to close this group. Used by IdComponent::reset
void Group::p_close() const
{
herr_t ret_value = H5Gclose( id );
if( ret_value < 0 )
{
throw GroupIException(0, "H5Gclose failed");
}
}
// Throw file exception
void Group::throwException(const string& func_name, const string& msg) const
{
string full_name = func_name;
full_name.insert(0, "Group::");
throw GroupIException(full_name, msg);
}
// The destructor of this instance calls IdComponent::reset to
// reset its identifier - no longer true
// Older compilers (baldric) don't support template member functions
// and IdComponent::reset is one; so at this time, the resetId is not
// a member function so it can be template to work around that problem.
Group::~Group()
{
// The group id will be closed properly
try {
resetIdComponent( this ); }
catch (Exception close_error) { // thrown by p_close
throw GroupIException("Group::~Group", close_error.getDetailMsg());
}
}
#ifndef H5_NO_NAMESPACE
} // end namespace
#endif
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