mitkNodePredicateFirstLevel.cpp

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/*===================================================================

The Medical Imaging Interaction Toolkit (MITK)

Copyright (c) German Cancer Research Center,
Division of Medical and Biological Informatics.
All rights reserved.

This software is distributed WITHOUT ANY WARRANTY; without
even the implied warranty of MERCHANTABILITY or FITNESS FOR
A PARTICULAR PURPOSE.

See LICENSE.txt or http://www.mitk.org for details.

===================================================================*/

#include "mitkNodePredicateFirstLevel.h"

mitk::NodePredicateFirstLevel::NodePredicateFirstLevel(mitk::DataStorage *ds) : NodePredicateBase(), m_DataStorage(ds)
{
}

mitk::NodePredicateFirstLevel::~NodePredicateFirstLevel()
{
}

bool mitk::NodePredicateFirstLevel::CheckNode(const mitk::DataNode *node) const
{
  if (node == nullptr)
    throw std::invalid_argument("NodePredicateFirstLevel: invalid node");

  if (m_DataStorage.IsNull())
    throw std::invalid_argument("NodePredicateFirstLevel: DataStorage is invalid");

  mitk::DataStorage::SetOfObjects::ConstPointer list = m_DataStorage->GetSources(node, nullptr, true);
  return (list->Size() == 0);
}