src/sync-diff-leaf.cc

/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil -*- */
/*
 * Copyright (c) 2012-2014 University of California, Los Angeles
 *
 * This file is part of ChronoSync, synchronization library for distributed realtime
 * applications for NDN.
 *
 * ChronoSync is free software: you can redistribute it and/or modify it under the terms
 * of the GNU General Public License as published by the Free Software Foundation, either
 * version 3 of the License, or (at your option) any later version.
 *
 * ChronoSync 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
 * ChronoSync, e.g., in COPYING.md file.  If not, see <http://www.gnu.org/licenses/>.
 *
 * @author Zhenkai Zhu <http://irl.cs.ucla.edu/~zhenkai/>
 * @author Chaoyi Bian <bcy@pku.edu.cn>
 * @author Alexander Afanasyev <http://lasr.cs.ucla.edu/afanasyev/index.html>
 */

#include "sync-diff-leaf.h"
#include <boost/throw_exception.hpp>
typedef boost::error_info<struct tag_errmsg, std::string> errmsg_info;

using namespace Sync::Error;

namespace Sync {

DiffLeaf::DiffLeaf (NameInfoConstPtr info, const SeqNo &seq)
  : Leaf (info, seq)
  , m_op (UPDATE)
{
}

DiffLeaf::DiffLeaf (NameInfoConstPtr info)
  : Leaf (info, SeqNo (0,0))
  , m_op (REMOVE)
{
}

std::ostream &
operator << (std::ostream &os, Operation op)
{
  switch (op)
    {
    case UPDATE:
      os << "update";
      break;
    case REMOVE:
      os << "remove";
      break;
    }
  return os;
}

std::istream &
operator >> (std::istream &is, Operation &op)
{
  std::string operation;
  is >> operation;
  if (operation == "update")
    op = UPDATE;
  else if (operation == "remove")
    op = REMOVE;
  else
    BOOST_THROW_EXCEPTION (SyncDiffLeafOperationParseError () << errmsg_info (operation));

  return is;
}


}