blob: 19db78f7313f0351ab704b48e2a9892a848557f2 [file] [log] [blame]
/* -*- 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.
*/
#include <ndn-cpp-dev/common.hpp>
#include <ndn-cpp-dev/data.hpp>
using namespace std;
namespace ndn {
const Block&
Data::wireEncode() const
{
if (wire_.hasWire())
return wire_;
// Data ::= DATA-TLV TLV-LENGTH
// Name
// MetaInfo
// Content
// Signature
wire_ = Block(Tlv::Data);
// Name
wire_.push_back(getName().wireEncode());
// MetaInfo
wire_.push_back(getMetaInfo().wireEncode());
// Content
wire_.push_back(getContent());
if (!signature_) {
throw Error("Requested wire format, but data packet has not been signed yet");
}
///////////////
// Signature //
///////////////
// SignatureInfo
wire_.push_back(signature_.getInfo());
// SignatureValue
wire_.push_back(signature_.getValue());
wire_.encode();
return wire_;
}
/**
* Decode the input using a particular wire format and update this Data.
* @param input The input byte array to be decoded.
*/
void
Data::wireDecode(const Block &wire)
{
wire_ = wire;
wire_.parse();
// Data ::= DATA-TLV TLV-LENGTH
// Name
// MetaInfo
// Content
// Signature
// Name
name_.wireDecode(wire_.get(Tlv::Name));
// MetaInfo
metaInfo_.wireDecode(wire_.get(Tlv::MetaInfo));
// Content
content_ = wire_.get(Tlv::Content);
///////////////
// Signature //
///////////////
// SignatureInfo
signature_.setInfo(wire_.get(Tlv::SignatureInfo));
// SignatureValue
signature_.setValue(wire_.get(Tlv::SignatureValue));
}
std::ostream&
operator << (std::ostream &os, const Data &data)
{
os << "Name: " << data.getName() << "\n";
os << "MetaInfo: " << data.getMetaInfo() << "\n";
os << "Content: (size: " << data.getContent().value_size() << ")\n";
os << "Signature: (type: " << data.getSignature().getType() <<
", value_length: "<< data.getSignature().getValue().value_size() << ")";
os << std::endl;
return os;
}
}