1 files changed, 168 insertions, 0 deletions
diff --git a/c++/src/H5Object.C b/c++/src/H5Object.C
new file mode 100644
index 0000000..82f7849
--- /dev/null
+++ b/c++/src/H5Object.C
@@ -0,0 +1,168 @@
+#include <string>
+
+#include "H5Include.h"
+#include "H5RefCounter.h"
+#include "H5Exception.h"
+#include "H5IdComponent.h"
+#include "H5Idtemplates.h"
+#include "H5PropList.h"
+#include "H5Object.h"
+#include "H5DataType.h"
+#include "H5DataSpace.h"
+#include "H5AbstractDs.h"
+#include "H5Attribute.h"
+
+#ifndef H5_NO_NAMESPACE
+namespace H5 {
+#endif
+
+// userAttrOpWrpr simply interfaces between the user's function and the
+// C library function H5Aiterate; used to resolve the different prototype 
+// problem.  May be moved to Iterator later.
+extern "C" herr_t userAttrOpWrpr( hid_t loc_id, const char* attr_name, void* op_data )
+{
+   string s_attr_name = string( attr_name );
+   UserData4Aiterate* myData = static_cast <UserData4Aiterate *> (op_data);
+   myData->op( *myData->object, s_attr_name, myData->opData );
+   return 0;
+}
+
+// Default constructor - set id to 0 by default here but may be set
+// to a valid HDF5 id, if any, by a subclass constructor.
+H5Object::H5Object() : IdComponent() {}
+
+// Constructs an object from an existing HDF5 id
+H5Object::H5Object( hid_t object_id ) : IdComponent( object_id ) {}
+
+// Copy constructor: makes a copy of the original H5Object instance
+H5Object::H5Object( const H5Object& original ) : IdComponent( original ) {}
+
+// Creates an attribute for a group, dataset, or named datatype.
+Attribute H5Object::createAttribute( const char* name, const DataType& data_type, const DataSpace& data_space, const PropList& create_plist ) const
+{
+   hid_t type_id = data_type.getId();
+   hid_t space_id = data_space.getId();
+   hid_t plist_id = create_plist.getId();
+   hid_t attr_id = H5Acreate( id, name, type_id, space_id, plist_id );
+
+   // If the attribute id is valid, create and return the Attribute object
+   if( attr_id > 0 )
+   {
+      Attribute attr( attr_id );
+      return( attr );
+   }
+   else
+   {
+      throw AttributeIException();
+   }
+}
+
+// Creates an attribute for a group, dataset, or named datatype.
+Attribute H5Object::createAttribute( const string& name, const DataType& data_type, const DataSpace& data_space, const PropList& create_plist ) const
+{
+   return( createAttribute( name.c_str(), data_type, data_space, create_plist ));
+}
+
+// Opens an attribute given its name; name is given as char*
+Attribute H5Object::openAttribute( const char* name ) const
+{
+   hid_t attr_id = H5Aopen_name( id, name );
+   if( attr_id > 0 )
+   {
+      Attribute attr( attr_id );
+      return( attr );
+   }
+   else
+   {
+      throw AttributeIException();
+   }
+}
+
+// Opens an attribute given its name; name is given as string
+Attribute H5Object::openAttribute( const string& name ) const
+{
+   return( openAttribute( name.c_str()) );
+}
+
+// Opens an attribute given its index.
+Attribute H5Object::openAttribute( unsigned int idx ) const
+{
+   hid_t attr_id = H5Aopen_idx( id, idx );
+   if( attr_id > 0 )
+   {
+      Attribute attr( attr_id );
+      return( attr );
+   }
+   else
+   {
+      throw AttributeIException();
+   }
+}
+
+// Iterates a user's function over all the attributes of the dataset
+int H5Object::iterateAttrs( attr_operator_t user_op, unsigned * idx, void *op_data )
+{
+   // store the user's function and data
+   UserData4Aiterate* userData = new UserData4Aiterate;
+   userData->opData = op_data;
+   userData->idx = idx;
+   userData->op = user_op;
+   userData->object = this;
+
+   // call the C library routine H5Aiterate to iterate the attributes
+   int ret_value = H5Aiterate( id, idx, userAttrOpWrpr, (void *) userData );
+   // release memory
+   delete userData;
+
+   if( ret_value >= 0 )
+      return( ret_value );
+   else  // raise exception when H5Aiterate returns a negative value
+   {
+      throw AttributeIException();
+   }
+}
+
+// Determines the number of attributes attached to 
+int H5Object::getNumAttrs() const
+{
+   int num_attrs = H5Aget_num_attrs( id );
+   if( num_attrs < 0 )
+   {
+      throw AttributeIException();
+   }
+   else
+      return( num_attrs );
+}
+
+// Removes the named attribute from this object.
+void H5Object::removeAttr( const char* name ) const
+{
+   herr_t ret_value = H5Adelete( id, name );
+   if( ret_value < 0 )
+   {
+      throw AttributeIException();
+   }
+}
+void H5Object::removeAttr( const string& name ) const
+{
+   removeAttr( name.c_str() );
+}
+
+// Flushes all buffers associated with a file to disk.
+void H5Object::flush(H5F_scope_t scope ) const
+{
+   herr_t ret_value = H5Fflush( id, scope );
+   if( ret_value < 0 )
+   {
+      throw FileIException();
+   }
+}
+
+// each subclass' destructor calls the template function resetIdComponent()
+// to reset the corresponding IdComponent object and close the HDF5 object
+// where appropriate.
+H5Object::~H5Object() {}
+
+#ifndef H5_NO_NAMESPACE
+} // end namespace
+#endif