示例#1
0
void
Decoder::decodeNestedTemplate(
   DataSource & source,
   Messages::ValueMessageBuilder & messageBuilder,
   Messages::FieldIdentityCPtr & identity)
{
  Codecs::PresenceMap pmap(getTemplateRegistry()->presenceMapBits());
  if(this->verboseOut_)
  {
    pmap.setVerbose(verboseOut_);
  }

  static const std::string pmp("PMAP");
  source.beginField(pmp);
  pmap.decode(source);

  static const std::string tid("templateID");
  source.beginField(tid);
  if(pmap.checkNextField())
  {
    template_id_t id;
    FieldInstruction::decodeUnsignedInteger(source, *this, id, tid);
    setTemplateId(id);
  }
  if(verboseOut_)
  {
    (*verboseOut_) << "Nested Template ID: " << getTemplateId() << std::endl;
  }
  Codecs::TemplateCPtr templatePtr;
  if(getTemplateRegistry()->getTemplate(getTemplateId(), templatePtr))
  {
    if(templatePtr->getReset())
    {
      reset(false);
    }
    Messages::ValueMessageBuilder & groupBuilder(
      messageBuilder.startGroup(
        identity,
        templatePtr->getApplicationType(),
        templatePtr->getApplicationTypeNamespace(),
        templatePtr->fieldCount()));

    decodeSegmentBody(source, pmap, templatePtr, groupBuilder);
    messageBuilder.endGroup(identity, groupBuilder);
  }
  else
  {
    std::string error =  "Unknown template ID:";
    error += boost::lexical_cast<std::string>(getTemplateId());
    reportError("[ERR D9]", error);
  }
  return;
}
示例#2
0
void
FieldInstructionGroup::decodeNop(
  Codecs::DataSource & source,
  Codecs::PresenceMap & pmap,
  Codecs::Decoder & decoder,
  Messages::ValueMessageBuilder & messageBuilder) const
{
  bool present = true;

  if(! isMandatory())
  {
    present = pmap.checkNextField();
  }

  if(present)
  {
    if(!segmentBody_)
    {
      decoder.reportFatal("[ERR U08}", "Segment not defined for Group instruction.");
    }
    if(messageBuilder.getApplicationType() != segmentBody_->getApplicationType())
    {
//      std::cout << "Decoding group into new segment: " << segmentBody_->getApplicationType() << std::endl;
      Messages::ValueMessageBuilder & groupBuilder(
        messageBuilder.startGroup(
          identity_,
          segmentBody_->getApplicationType(),
          segmentBody_->getApplicationTypeNamespace(),
          segmentBody_->fieldCount()));

      decoder.decodeGroup(source, segmentBody_, groupBuilder);
      messageBuilder.endGroup(
        identity_,
        groupBuilder);
    }
    else
    {
//      std::cout << "Folding group into parent segment: " << segmentBody_->getApplicationType() << std::endl;
      // Because the application types match,
      // the group fields are decoded directly into to the current
      // field set.  As a result the group "disappears" completely
      // from the application message.  This is a good thing.  Groups
      // are an artifact of the template used to encode the message
      // rather than being an attribute of the actual message being
      // encoded.  In fact, the same message encoded with different
      // templates could be transmitted with different sets of fields
      // in groups.
      decoder.decodeGroup(source, segmentBody_, messageBuilder);
    }
  }
}
void
FieldInstructionStaticTemplateRef::decodeNop(
  Codecs::DataSource & source,
  Codecs::PresenceMap & pmap,
  Codecs::Decoder & decoder,
  Messages::ValueMessageBuilder & messageBuilder) const
{
  TemplateCPtr target;
  if(!decoder.findTemplate(templateName_, templateNamespace_, target))
  {
    decoder.reportFatal("[ERR D9]", "Unknown template name for static templateref.", *identity_);
  }

  if(messageBuilder.getApplicationType() != target->getApplicationType())
  {
    Messages::ValueMessageBuilder & groupBuilder(
      messageBuilder.startGroup(
        identity_,
        target->getApplicationType(),
        target->getApplicationTypeNamespace(),
        target->fieldCount()));

    decoder.decodeSegmentBody(source, pmap, target, groupBuilder);
    messageBuilder.endGroup(
      identity_,
      groupBuilder);

  }
  else
  {
    // Because the application types match,
    // the templateRef fields are decoded directly into to the current
    // field set.  As a result the templateRef "disappears" completely
    // from the application message.  This is a good thing.
    // The same message encoded with different
    // templates could be transmitted with different sets of fields defined
    // by templateRefs, but the underlying application type should not reflect
    // the technique used to encode/decode it.
    decoder.decodeSegmentBody(source, pmap, target, messageBuilder);
  }
}