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
FieldInstructionSequence::decodeNop(
Codecs::DataSource & source,
Codecs::PresenceMap & pmap,
Codecs::Decoder & decoder,
Messages::ValueMessageBuilder & builder) const
{
if(!segment_)
{
decoder.reportFatal("[ERR U07]", "SegmentBody not defined for Sequence instruction.");
}
size_t length = 0;
Codecs::FieldInstructionCPtr lengthInstruction;
Messages::SingleValueBuilder<uint32> lengthSet;
if(segment_->getLengthInstruction(lengthInstruction))
{
source.beginField(lengthInstruction->getIdentity()->name());
lengthInstruction->decode(source, pmap, decoder, lengthSet);
}
else
{
FieldInstructionUInt32 defaultLengthInstruction;
defaultLengthInstruction.setPresence(isMandatory());
defaultLengthInstruction.decode(source, pmap, decoder, lengthSet);
}
if(lengthSet.isSet())
{
length = lengthSet.value();
Messages::ValueMessageBuilder & sequenceBuilder = builder.startSequence(
identity_,
segment_->getApplicationType(),
segment_->getApplicationTypeNamespace(),
segment_->fieldCount(),
lengthSet.identity(),
length);
for(size_t nEntry = 0; nEntry < length; ++nEntry)
{
if(decoder.getLogOut())
{
std::stringstream msg;
msg << "Sequence entry #" << nEntry << " of " << length << std::ends;
decoder.logMessage(msg.str());
}
Messages::ValueMessageBuilder & entrySet(
sequenceBuilder.startSequenceEntry(
segment_->getApplicationType(),
segment_->getApplicationTypeNamespace(),
segment_->fieldCount()));
decoder.decodeGroup(source, segment_, entrySet);
sequenceBuilder.endSequenceEntry(entrySet);
}
builder.endSequence(identity_, sequenceBuilder);
}
}