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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright by The HDF Group. *
* 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://hdfgroup.org/HDF5/doc/Copyright.html. If you do not have *
* access to either file, you may request a copy from help@hdfgroup.org. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
#ifdef OLD_HEADER_FILENAME
#include <iostream.h>
#else
#include <iostream>
#endif
#include <string>
#include "H5Include.h"
#include "H5Exception.h"
#include "H5IdComponent.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 "H5Attribute.h"
#include "H5Group.h"
#include "H5File.h"
#include "H5Alltypes.h"
#ifndef H5_NO_NAMESPACE
namespace H5 {
#ifndef H5_NO_STD
using std::cerr;
using std::endl;
#endif // H5_NO_STD
#endif
//--------------------------------------------------------------------------
// Function: Group default constructor
///\brief Default constructor: creates a stub Group.
// Programmer Binh-Minh Ribler - 2000
//--------------------------------------------------------------------------
Group::Group() : H5Object(), id(0) {}
//--------------------------------------------------------------------------
// Function: Group copy constructor
///\brief Copy constructor: makes a copy of the original Group object.
///\param original - IN: Original group to copy
// Programmer Binh-Minh Ribler - 2000
//--------------------------------------------------------------------------
Group::Group(const Group& original) : H5Object(original)
{
id = original.getId();
incRefCount(); // increment number of references to this id
}
//--------------------------------------------------------------------------
// Function: Group::getLocId
///\brief Returns the id of this group.
///\return Id of this group
// Programmer Binh-Minh Ribler - 2000
//--------------------------------------------------------------------------
hid_t Group::getLocId() const
{
return( getId() );
}
//--------------------------------------------------------------------------
// Function: Group overloaded constructor
///\brief Creates a Group object using the id of an existing group.
///\param existing_id - IN: Id of an existing group
// Programmer Binh-Minh Ribler - 2000
//--------------------------------------------------------------------------
Group::Group(const hid_t existing_id) : H5Object()
{
id = existing_id;
}
//--------------------------------------------------------------------------
// Function: Group overload constructor - dereference
///\brief Given a reference, ref, to an hdf5 group, creates a Group object
///\param obj - IN: Specifying location referenced object is in
///\param ref - IN: Reference pointer
///\param ref_type - IN: Reference type - default to H5R_OBJECT
///\exception H5::ReferenceException
///\par Description
/// \c obj can be DataSet, Group, or named DataType, that
/// is a datatype that has been named by DataType::commit.
// Programmer Binh-Minh Ribler - Oct, 2006
//--------------------------------------------------------------------------
Group::Group(const H5Location& loc, const void* ref, H5R_type_t ref_type, const PropList& plist) : H5Object(), id(0)
{
/* H5Location::dereference(loc, ref, ref_type, plist);
*/
id = H5Location::p_dereference(loc.getId(), ref, ref_type, plist, "constructor - by dereference");
}
//--------------------------------------------------------------------------
// Function: Group overload constructor - dereference
///\brief Given a reference, ref, to an hdf5 group, creates a Group object
///\param attr - IN: Specifying location where the referenced object is in
///\param ref - IN: Reference pointer
///\param ref_type - IN: Reference type - default to H5R_OBJECT
///\exception H5::ReferenceException
// Programmer Binh-Minh Ribler - Oct, 2006
//--------------------------------------------------------------------------
Group::Group(const Attribute& attr, const void* ref, H5R_type_t ref_type, const PropList& plist) : H5Object(), id(0)
{
id = H5Location::p_dereference(attr.getId(), ref, ref_type, plist, "constructor - by dereference");
/*
try {
id = p_dereference(attr.getId(), ref, ref_type, plist);
} catch (ReferenceException deref_error) {
throw ReferenceException("Group constructor - located by an Attribute",
deref_error.getDetailMsg());
}
*/
}
//--------------------------------------------------------------------------
// Function: Group::getId
///\brief Get the id of this group
///\return Group identifier
// Modification:
// May 2008 - BMR
// Class hierarchy is revised to address bugzilla 1068. Class
// AbstractDS and Attribute are moved out of H5Object. In
// addition, member IdComponent::id is moved into subclasses, and
// IdComponent::getId now becomes pure virtual function.
// Programmer Binh-Minh Ribler - May, 2008
//--------------------------------------------------------------------------
hid_t Group::getId() const
{
return(id);
}
#ifndef DOXYGEN_SHOULD_SKIP_THIS
//--------------------------------------------------------------------------
// Function: Group::p_setId
///\brief Sets the identifier of this object to a new value.
///
///\exception H5::IdComponentException when the attempt to close the HDF5
/// object fails
// Description:
// The underlaying reference counting in the C library ensures
// that the current valid id of this object is properly closed.
// Then the object's id is reset to the new id.
// Programmer Binh-Minh Ribler - 2000
//--------------------------------------------------------------------------
void Group::p_setId(const hid_t new_id)
{
// handling references to this old id
try {
close();
}
catch (Exception close_error) {
throw GroupIException("Group::p_setId", close_error.getDetailMsg());
}
// reset object's id to the given id
id = new_id;
}
#endif // DOXYGEN_SHOULD_SKIP_THIS
//--------------------------------------------------------------------------
// Function: Group::close
///\brief Closes this group.
///
///\exception H5::GroupIException
// Programmer Binh-Minh Ribler - Mar 9, 2005
//--------------------------------------------------------------------------
void Group::close()
{
if (p_valid_id(id))
{
herr_t ret_value = H5Gclose( id );
if( ret_value < 0 )
{
throw GroupIException("Group::close", "H5Gclose failed");
}
// reset the id
id = 0;
}
}
//--------------------------------------------------------------------------
// Function: Group::throwException
///\brief Throws H5::GroupIException.
///\param func_name - Name of the function where failure occurs
///\param msg - Message describing the failure
///\exception H5::GroupIException
// Description
// This function is used in CommonFG implementation so that
// proper exception can be thrown for file or group. The
// argument func_name is a member of CommonFG and "Group::"
// will be inserted to indicate the function called is an
// implementation of Group.
// Programmer Binh-Minh Ribler - 2000
//--------------------------------------------------------------------------
void Group::throwException(const H5std_string& func_name, const H5std_string& msg) const
{
H5std_string full_name = func_name;
full_name.insert(0, "Group::");
throw GroupIException(full_name, msg);
}
//--------------------------------------------------------------------------
// Function: Group destructor
///\brief Properly terminates access to this group.
// Programmer Binh-Minh Ribler - 2000
// Modification
// - Replaced resetIdComponent() with decRefCount() to use C
// library ID reference counting mechanism - BMR, Feb 20, 2005
// - Replaced decRefCount with close() to let the C library
// handle the reference counting - BMR, Jun 1, 2006
//--------------------------------------------------------------------------
Group::~Group()
{
try {
close();
}
catch (Exception close_error) {
cerr << "Group::~Group - " << close_error.getDetailMsg() << endl;
}
}
#ifndef H5_NO_NAMESPACE
} // end namespace
#endif
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