void
FieldInstructionDecimal::encodeConstant(
Codecs::DataDestination & /*destination*/,
Codecs::PresenceMap & pmap,
Codecs::Encoder & encoder,
const Messages::MessageAccessor & accessor) const
{
if(!isMandatory())
{
// get the value from the application data
Decimal value;
if(accessor.getDecimal(*identity_, ValueType::DECIMAL, value))
{
if(value != typedValue_)
{
encoder.reportFatal("[ERR U10]", "Constant value does not match application data.", *identity_);
}
pmap.setNextField(true);
}
else // not defined by accessor
{
pmap.setNextField(false);
}
}
}
void
FieldInstructionDecimal::encodeDefault(
Codecs::DataDestination & destination,
Codecs::PresenceMap & pmap,
Codecs::Encoder & encoder,
const Messages::MessageAccessor & accessor) const
{
// get the value from the application data
Decimal value;
if(accessor.getDecimal(*identity_, ValueType::DECIMAL, value))
{
if(typedValueIsDefined_ &&
value == typedValue_)
{
pmap.setNextField(false); // not in stream. use default
}
else
{
pmap.setNextField(true); // != default. Send value
if(isMandatory())
{
encodeDecimal(destination, encoder.getWorkingBuffer(), value.getExponent(), value.getMantissa());
}
else
{
encodeNullableDecimal(destination, encoder.getWorkingBuffer(), value.getExponent(), value.getMantissa());
}
}
}
else // not defined by accessor
{
if(isMandatory())
{
encoder.reportFatal("[ERR U01]", "Missing mandatory field.", *identity_);
}
// if there is a default value
// you have to cancel this by sending a null.
if(fieldOp_->hasValue())
{
pmap.setNextField(true);
destination.putByte(nullDecimal);
}
else
{
pmap.setNextField(false);
}
}
}
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
FieldInstructionGroup::encodeNop(
Codecs::DataDestination & destination,
Codecs::PresenceMap & pmap,
Codecs::Encoder & encoder,
const Messages::MessageAccessor & messageAccessor) const
{
if(!segmentBody_)
{
encoder.reportFatal("[ERR U08}", "Segment not defined for Group instruction.");
}
// retrieve the field corresponding to this group
// Note that applications may support merging groups
// by returning true from getGroup but using the same accessor.
const Messages::MessageAccessor * group;
if(messageAccessor.getGroup(*identity_, group))
{
if(! isMandatory())
{
pmap.setNextField(true);
}
encoder.encodeGroup(destination, segmentBody_, *group);
messageAccessor.endGroup(*identity_, group);
}
else
{
if(isMandatory())
{
encoder.reportFatal("[ERR U01]", "Missing mandatory group.");
encoder.encodeGroup(destination, segmentBody_, messageAccessor);
}
else
{
pmap.setNextField(false);
}
}
}
void
FieldInstructionDecimal::decodeConstant(
Codecs::DataSource & /*source*/,
Codecs::PresenceMap & pmap,
Codecs::Decoder & /*decoder*/,
Messages::ValueMessageBuilder & accessor) const
{
PROFILE_POINT("decimal::decodeConstant");
if(isMandatory() || pmap.checkNextField())
{
accessor.addValue(
identity_,
ValueType::DECIMAL,
typedValue_);
}
}
void
FieldInstructionDecimal::decodeDefault(
Codecs::DataSource & source,
Codecs::PresenceMap & pmap,
Codecs::Decoder & decoder,
Messages::ValueMessageBuilder & accessor) const
{
PROFILE_POINT("decimal::decodeDefault");
if(pmap.checkNextField())
{
exponent_t exponent = 0;
decodeSignedInteger(source, decoder, exponent, identity_->name());
if(!isMandatory())
{
if(checkNullInteger(exponent))
{
return;
}
}
mantissa_t mantissa;
decodeSignedInteger(source, decoder, mantissa, identity_->name());
Decimal value(mantissa, exponent);
accessor.addValue(
identity_,
ValueType::DECIMAL,
value);
}
else // field not in stream
{
if(typedValueIsDefined_)
{
accessor.addValue(
identity_,
ValueType::DECIMAL,
typedValue_);
}
else if(isMandatory())
{
decoder.reportFatal("[ERR D5]", "Mandatory default operator with no value.", *identity_);
}
}
}
void
FieldInstructionDecimal::encodeCopy(
Codecs::DataDestination & destination,
Codecs::PresenceMap & pmap,
Codecs::Encoder & encoder,
const Messages::MessageAccessor & accessor) const
{
Decimal previousValue(0,0);
Context::DictionaryStatus previousStatus = fieldOp_->getDictionaryValue(encoder, previousValue);
if(previousStatus == Context::UNDEFINED_VALUE)
{
if(fieldOp_->hasValue())
{
previousValue = typedValue_;
fieldOp_->setDictionaryValue(encoder, previousValue);
// pretend we got the data from the dictionary
previousStatus = Context::OK_VALUE;
}
else
{
// pretend we got a null from the dictionary
fieldOp_->setDictionaryValueNull(encoder);
previousStatus = Context::NULL_VALUE;
}
}
// get the value from the application data
Decimal value;
if(accessor.getDecimal(*identity_, ValueType::DECIMAL, value))
{
if(previousStatus == Context::OK_VALUE && previousValue == value)
{
pmap.setNextField(false); // not in stream, use copy
}
else
{
pmap.setNextField(true);// value in stream
if(isMandatory())
{
encodeDecimal(destination, encoder.getWorkingBuffer(), value.getExponent(), value.getMantissa());
}
else
{
encodeNullableDecimal(destination, encoder.getWorkingBuffer(), value.getExponent(), value.getMantissa());
}
fieldOp_->setDictionaryValue(encoder, value);
}
}
else // not defined by accessor
{
if(isMandatory())
{
encoder.reportFatal("[ERR U01]", "Missing mandatory decimal field.", *identity_);
// if reportFatal returns we're being lax about encoding rules
// let the copy happen.
pmap.setNextField(false);
}
else
{
// Missing optional field. If we have a previous, non-null value
// we need to explicitly null it out. Otherwise just don't send it.
if(previousValue != Context::NULL_VALUE)
{
pmap.setNextField(true);// value in stream
destination.putByte(nullDecimal);
fieldOp_->setDictionaryValueNull(encoder);
}
else
{
pmap.setNextField(false);
}
}
}
}
void
FieldInstructionDecimal::decodeCopy(
Codecs::DataSource & source,
Codecs::PresenceMap & pmap,
Codecs::Decoder & decoder,
Messages::ValueMessageBuilder & accessor) const
{
PROFILE_POINT("decimal::decodeCopy");
exponent_t exponent = 0;
mantissa_t mantissa = 0;
if(pmap.checkNextField())
{
decodeSignedInteger(source, decoder, exponent, identity_->name());
if(isMandatory())
{
decodeSignedInteger(source, decoder, mantissa, identity_->name());
Decimal value(mantissa, exponent, false);
accessor.addValue(
identity_,
ValueType::DECIMAL,
value);
fieldOp_->setDictionaryValue(decoder, value);
}
else
{
// not mandatory means it's nullable
if(checkNullInteger(exponent))
{
fieldOp_->setDictionaryValueNull(decoder);
}
else
{
decodeSignedInteger(source, decoder, mantissa, identity_->name());
Decimal value(mantissa, exponent, false);
accessor.addValue(
identity_,
ValueType::DECIMAL,
value);
fieldOp_->setDictionaryValue(decoder, value);
}
}
}
else // pmap says not present, use copy
{
Decimal value(0,0);
Context::DictionaryStatus previousStatus = fieldOp_->getDictionaryValue(decoder, value);
if(previousStatus == Context::UNDEFINED_VALUE)
{
// value not found in dictionary
// not a problem.. use initial value if it's available
if(fieldOp_->hasValue())
{
accessor.addValue(
identity_,
ValueType::DECIMAL,
typedValue_);
fieldOp_->setDictionaryValue(decoder, typedValue_);
}
else
{
if(isMandatory())
{
decoder.reportFatal("[ERR D5]", "Copy operator missing mandatory Decimal field/no initial value", *identity_);
}
}
}
else if(previousStatus == Context::OK_VALUE)
{
accessor.addValue(
identity_,
ValueType::DECIMAL,
value);
}
//else previous was null so don't put anything in the record
}
}
