Channel Adapter Generator

[GenerateChannelAdapter] creates a typed ChannelAdapter<TExternal, TPayload> factory.

[GenerateChannelAdapter(typeof(ErpOrderDocument), typeof(OrderIntegrationMessage), FactoryName = "Create", AdapterName = "erp-orders-adapter")]
public static partial class ErpOrdersAdapter
{
    [ChannelAdapterInbound]
    private static Message<OrderIntegrationMessage> ToMessage(ErpOrderDocument document, MessageContext context)
        => Message<OrderIntegrationMessage>.Create(new(document.ExternalOrderId, decimal.Parse(document.Total)));

    [ChannelAdapterOutbound]
    private static ErpOrderDocument ToExternal(Message<OrderIntegrationMessage> message, MessageContext context)
        => new(message.Payload.OrderId, message.Payload.Total.ToString("0.00"));
}

The generated factory accepts inbound and outbound MessageChannel<TPayload> instances so the adapter can be composed through IServiceCollection.

Diagnostics:

• PKCAD001: host type must be partial.
• PKCAD002: exactly one inbound translator is required.
• PKCAD003: exactly one outbound translator is required.
• PKCAD004: inbound translator signature is invalid.
• PKCAD005: outbound translator signature is invalid.