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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
/**
* Copyright (C) 2013 Regents of the University of California.
* @author: Jeff Thompson <jefft0@remap.ucla.edu>
* See COPYING for copyright and distribution information.
*/
#ifndef NDN_FORWARDING_ENTRY_HPP
#define NDN_FORWARDING_ENTRY_HPP
#include "name.hpp"
#include "forwarding-flags.hpp"
#include "encoding/block.hpp"
namespace ndn {
/**
* An ForwardingEntry holds an action and Name prefix and other fields for an forwarding entry.
*/
class ForwardingEntry {
public:
ForwardingEntry(const std::string& action,
const Name& prefix,
int faceId,
const ForwardingFlags& forwardingFlags,
int freshnessPeriod)
: action_(action)
, prefix_(prefix)
, faceId_(faceId)
, forwardingFlags_(forwardingFlags)
, freshnessPeriod_(freshnessPeriod)
{
}
ForwardingEntry()
: faceId_(-1)
, freshnessPeriod_(-1)
{
}
const std::string&
getAction() const { return action_; }
void
setAction(const std::string& action) { action_ = action; wire_.reset(); }
const Name&
getPrefix() const { return prefix_; }
void
setPrefix(const Name &prefix) { prefix_ = prefix; wire_.reset(); }
int
getFaceId() const { return faceId_; }
void
setFaceId(int faceId) { faceId_ = faceId; wire_.reset(); }
const ForwardingFlags&
getForwardingFlags() const { return forwardingFlags_; }
void
setForwardingFlags(const ForwardingFlags& forwardingFlags) { forwardingFlags_ = forwardingFlags; wire_.reset(); }
int
getFreshnessPeriod() const { return freshnessPeriod_; }
void
setFreshnessPeriod(int freshnessPeriod) { freshnessPeriod_ = freshnessPeriod; wire_.reset(); }
inline const Block&
wireEncode() const;
inline void
wireDecode(const Block &wire);
private:
std::string action_; /**< empty for none. */
Name prefix_;
int faceId_; /**< -1 for none. */
ForwardingFlags forwardingFlags_;
int freshnessPeriod_; /**< -1 for none. */
mutable Block wire_;
};
inline const Block&
ForwardingEntry::wireEncode() const
{
if (wire_.hasWire())
return wire_;
// ForwardingEntry ::= FORWARDING-ENTRY TLV-LENGTH
// Action?
// Name?
// FaceID?
// ForwardingFlags?
// FreshnessPeriod?
wire_ = Block(Tlv::FaceManagement::ForwardingEntry);
// Action
if (!action_.empty())
{
wire_.push_back
(dataBlock(Tlv::FaceManagement::Action, action_.c_str(), action_.size()));
}
// Name
if (!prefix_.empty())
{
wire_.push_back
(prefix_.wireEncode());
}
// FaceID
if (faceId_ >= 0)
{
wire_.push_back
(nonNegativeIntegerBlock(Tlv::FaceManagement::FaceID, faceId_));
}
// ForwardingFlags
wire_.push_back
(forwardingFlags_.wireEncode());
// FreshnessPeriod
if (freshnessPeriod_ >= 0)
{
wire_.push_back
(nonNegativeIntegerBlock(Tlv::FreshnessPeriod, freshnessPeriod_));
}
wire_.encode();
return wire_;
}
inline void
ForwardingEntry::wireDecode(const Block &wire)
{
action_.clear();
prefix_.clear();
faceId_ = -1;
forwardingFlags_ = ForwardingFlags();
freshnessPeriod_ = -1;
wire_ = wire;
wire_.parse();
// ForwardingEntry ::= FORWARDING-ENTRY TLV-LENGTH
// Action?
// Name?
// FaceID?
// ForwardingFlags?
// FreshnessPeriod?
// Action
Block::element_iterator val = wire_.find(Tlv::FaceManagement::Action);
if (val != wire_.getAll().end())
{
action_ = std::string(reinterpret_cast<const char*>(val->value()), val->value_size());
}
// Name
val = wire_.find(Tlv::Name);
if (val != wire_.getAll().end())
{
prefix_.wireDecode(*val);
}
// FaceID
val = wire_.find(Tlv::FaceManagement::FaceID);
if (val != wire_.getAll().end())
{
faceId_ = readNonNegativeInteger(*val);
}
// ForwardingFlags
val = wire_.find(Tlv::FaceManagement::ForwardingFlags);
if (val != wire_.getAll().end())
{
forwardingFlags_.wireDecode(*val);
}
// FreshnessPeriod
val = wire_.find(Tlv::FreshnessPeriod);
if (val != wire_.getAll().end())
{
freshnessPeriod_ = readNonNegativeInteger(*val);
}
}
inline std::ostream&
operator << (std::ostream &os, const ForwardingEntry &entry)
{
os << "ForwardingEntry(";
// Action
if (!entry.getAction().empty())
{
os << "Action:" << entry.getAction() << ", ";
}
// Name
if (!entry.getPrefix().empty())
{
os << "Prefix:" << entry.getPrefix() << ", ";
}
// FaceID
if (entry.getFaceId() >= 0)
{
os << "FaceID:" << entry.getFaceId() << ", ";
}
// ForwardingFlags
os << "ForwardingFlags:" << entry.getForwardingFlags() << ", ";
// FreshnessPeriod
if (entry.getFreshnessPeriod() >= 0)
{
os << "FreshnessPeriod:" << entry.getFreshnessPeriod() << ", ";
}
os << ")";
return os;
}
}
#endif