You need to build your layer into a .jar file and then put that on Daffodil's
classpath.
If you're use the Daffodil CLI, you can add jars to the CLI classpath by setting
the DAFFODIL_CLASSPATH environment variable, for example:
export DAFFODIL_CLASSPATH="/path/to/custom/checksum/layer.jar"
daffodil parse -s schema.dfdl.xsd ...
If instead you're running TDML tests using SBT, a common technique is to publish
the layer jar to a local repository, then add it as a dependency to the schema
project that uses it. For example, you could do this to publish locally:
cd /layer-project
sbt publishLocal
And add this to your schema project build.sbt file:
libraryDependencies ++= Seq(
"org.example" % "layer-project" % "1.0.0"
)
And then just run "sbt test" from the schema project. SBT will find the locally
published layer and automatically add it to the classpath when running tests.
On 2024-10-25 12:51 PM, Mark Kozak wrote:
Hello folks,
I have a custom checksum calculator I need to run on an entity. I have been
studying the ethernetIP example <https://github.com/DFDLSchemas/ethernetIP> and
the layers documentation <https://daffodil.apache.org/layers>, but am unable to
figure out where to place my scala implementation for it to be found. Is there
some documentation I am missing?
Thanks as always for the support,
Mark
Mark Kozak
Director of Engineering
Adeptus Cyber Solutions
Adeptus-CS.com
