コード例 #1
0
ファイル: exclude.cpp プロジェクト: WeiqiJust/NDN-total
void
Exclude::wireDecode(const Block& wire)
{
  clear();

  if (wire.type() != tlv::Exclude)
    throw tlv::Error("Unexpected TLV type when decoding Exclude");

  m_wire = wire;
  m_wire.parse();

  if (m_wire.elements_size() == 0) {
    throw Error("Exclude element cannot be empty");
  }

  // Exclude ::= EXCLUDE-TYPE TLV-LENGTH Any? (NameComponent (Any)?)+
  // Any     ::= ANY-TYPE TLV-LENGTH(=0)

  Block::element_const_iterator i = m_wire.elements_begin();
  if (i->type() == tlv::Any)
    {
      appendExclude(name::Component(), true);
      ++i;
    }

  while (i != m_wire.elements_end())
    {
      if (i->type() != tlv::NameComponent)
        throw Error("Incorrect format of Exclude filter");

      name::Component excludedComponent(i->value(), i->value_size());
      ++i;

      if (i != m_wire.elements_end())
        {
          if (i->type() == tlv::Any)
            {
              appendExclude(excludedComponent, true);
              ++i;
            }
          else
            {
              appendExclude(excludedComponent, false);
            }
        }
      else
        {
          appendExclude(excludedComponent, false);
        }
    }
}
コード例 #2
0
void
Exclude::wireDecode(const Block& wire)
{
  clear();

  if (wire.type() != tlv::Exclude)
    BOOST_THROW_EXCEPTION(tlv::Error("Unexpected TLV type when decoding Exclude"));

  m_wire = wire;
  m_wire.parse();

  if (m_wire.elements_size() == 0) {
    BOOST_THROW_EXCEPTION(Error("Exclude element cannot be empty"));
  }

  // Exclude ::= EXCLUDE-TYPE TLV-LENGTH Any? (NameComponent (Any)?)+
  // Any     ::= ANY-TYPE TLV-LENGTH(=0)

  Block::element_const_iterator i = m_wire.elements_begin();
  if (i->type() == tlv::Any) {
    appendExclude(name::Component(), true);
    ++i;
  }

  while (i != m_wire.elements_end()) {
    name::Component excludedComponent;
    try {
      excludedComponent = name::Component(*i);
    }
    catch (const name::Component::Error&) {
      BOOST_THROW_EXCEPTION(Error("Incorrect format of Exclude filter"));
    }

    ++i;

    if (i != m_wire.elements_end()) {
      if (i->type() == tlv::Any) {
        appendExclude(excludedComponent, true);
        ++i;
      }
      else {
        appendExclude(excludedComponent, false);
      }
    }
    else {
      appendExclude(excludedComponent, false);
    }
  }
}