Trait MessageAdapter 

pub trait MessageAdapter<W: Workflow>:
    Send
    + Sync
    + 'static {
    // Required methods
    fn accepts_format_version(&self, fv: &FormatVersion) -> bool;
    fn adapt(
        &self,
        raw: &dyn Any,
        fv: &FormatVersion,
    ) -> Result<W::Command, EngineError>;
}

Translates a parsed EDIFACT message into a domain command for workflow W.

Implement one MessageAdapter per (message type, format version range) combination that your workflow needs to handle. An adapter that handles multiple format versions via internal branching is also valid.

Thread safety

Adapters must be Send + Sync + 'static because they are stored in an AdapterRegistry that is shared across async tasks.

Required Methods

fn accepts_format_version(&self, fv: &FormatVersion) -> bool

Returns true when this adapter can translate messages formatted under fv.

The AdapterRegistry calls this during validation to confirm that every format version declared by the workflow’s WorkflowVersionPolicy is covered.

fn adapt( &self, raw: &dyn Any, fv: &FormatVersion, ) -> Result<W::Command, EngineError>

Translate a raw parsed message into a domain command.

fv is the format version detected from the wire message (e.g. from EdiEnergyMessage::detect_release). Use it to select the correct field mapping when the adapter handles multiple format versions.

Errors

Return EngineError::Workflow when the message is structurally valid but semantically inappropriate for this command (e.g. wrong PID).

Return EngineError::Deserialization when a required field is absent or malformed.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl<W: Workflow, A, D> MessageAdapter<W> for FnAdapter<W, A, D>

where A: Fn(&FormatVersion) -> bool + Send + Sync + 'static, D: Fn(&dyn Any, &FormatVersion) -> Result<W::Command, EngineError> + Send + Sync + 'static,