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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
/*
* Copyright (c) 2011 University of California, Los Angeles
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation;
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Author: Ilya Moiseenko <iliamo@cs.ucla.edu>
*/
#ifndef _NDN_NAME_COMPONENTS_H_
#define _NDN_NAME_COMPONENTS_H_
#include "ns3/simple-ref-count.h"
#include "ns3/attribute.h"
#include "ns3/attribute-helper.h"
#include <string>
#include <algorithm>
#include <list>
#include "ns3/object.h"
#include <boost/ref.hpp>
namespace ns3 {
class CcnxNameComponents : public SimpleRefCount<CcnxNameComponents>
{
public:
/**
* \brief Creates a prefix with zero components (can be looked as root "/")
*/
CcnxNameComponents ();
// CcnxNameComponents (const std::string &s);
CcnxNameComponents (const std::list<boost::reference_wrapper<const std::string> > &components);
template<class T>
inline void
Add (const T &value);
template<class T>
inline CcnxNameComponents&
operator () (const T &value);
const std::list<std::string> &
GetComponents () const;
/**
* \brief Get subcomponents of the name, starting with first component
* \param num Number of components to return. Valid value is in range [1, GetComponents ().size ()]
*/
std::list<boost::reference_wrapper<const std::string> >
GetSubComponents (size_t num) const;
// virtual uint32_t
// GetSerializedSize (void) const;
// virtual void
// Serialize (Buffer::Iterator start) const;
// virtual uint32_t
// Deserialize (Buffer::Iterator start);
void Print (std::ostream &os) const;
inline size_t
size () const;
inline bool
operator== (const CcnxNameComponents &prefix) const;
inline bool
operator< (const CcnxNameComponents &prefix) const;
private:
std::list<std::string> m_prefix;
typedef std::list<std::string>::iterator iterator;
typedef std::list<std::string>::const_iterator const_iterator;
};
/**
* \brief Print out name components separated by slashes, e.g., /first/second/third
*/
std::ostream &
operator << (std::ostream &os, const CcnxNameComponents &components);
/**
* \brief Read components from input and add them to components. Will read input stream till eof
*
* \todo Check that NS-3 doesn't give unlimited input streams... Otherwise it would be disaster
*
* Substrings separated by slashes will become separate components
*/
std::istream &
operator >> (std::istream &is, CcnxNameComponents &components);
size_t
CcnxNameComponents::size () const
{
return m_prefix.size ();
}
template<class T>
CcnxNameComponents&
CcnxNameComponents::operator () (const T &value)
{
Add (value);
return *this;
}
// template<>
// void
// CcnxNameComponents::Add (const std::string &string)
// {
// m_prefix.push_back (string);
// }
template<class T>
void
CcnxNameComponents::Add (const T &value)
{
std::ostringstream os;
os << value;
m_prefix.push_back (os.str ());
}
bool
CcnxNameComponents::operator== (const CcnxNameComponents &prefix) const
{
if (m_prefix.size () != prefix.m_prefix.size ())
return false;
return std::equal (m_prefix.begin (), m_prefix.end (), prefix.m_prefix.begin ());
}
bool
CcnxNameComponents::operator< (const CcnxNameComponents &prefix) const
{
return std::lexicographical_compare (m_prefix.begin (), m_prefix.end (),
prefix.m_prefix.begin (), prefix.m_prefix.end ());
}
/**
* \class ns3::ComponentsValue
* \brief hold objects of type ns3:CcnxNameComponents
*/
ATTRIBUTE_HELPER_HEADER (CcnxNameComponents);
} // namespace ns3
#endif // _NDN_NAME_COMPONENTS_H_