Implement ForwardResponseToService Sink And All Its Implications

MZS Schema Change:
- Add configuration for ForwardResponseToServiceSink
  (add parameters in mzs:DeliveryRequest/Config)
- Add sink configuration in application.yaml, convert from Spring
  Environment to ConfigType, and merge ConfigTypes.
- Validate sink configuration completeness.

Contract added:
- Add contract mzs2app.wsdl: This contract specifies how
  mzs:DeliveryRequestStatus' and mzs:DeliveryNotifications are
  forwarded to the sender application.
- Implement "ForwardResponseToService" Sink.
- Add and implement MsgResponse.sendToMzsClient() : This is a somewhat
  unfortunate solution because, intuitively, sending should be done by
  it's caller, the "ForwardResponseToService"-sink. However, this
  solution prevents differences between msg:DeliveryRequestStatus and
  msg:DeliveryNotification (and code that needs to handle differences,
  i.e. sending) from sprawling outside of the respective MsgResponse
  derivatives. We move the entire "send" process into MsgResponse to
  prevent a hard-to-maintain "if type == notification then do x else
  to y" construct in ForwardResponseToServiceSink. Otherwise,
  introducing the MsgResponse wrapper was pointless.

2 files changed, 48 insertions, 5 deletions

diff --git a/src/main/java/at/gv/egiz/moazs/backend/ForwardResponseToServiceSink.java b/src/main/java/at/gv/egiz/moazs/backend/ForwardResponseToServiceSink.java
new file mode 100644
index 0000000..4b3c085
--- /dev/null
+++ b/src/main/java/at/gv/egiz/moazs/backend/ForwardResponseToServiceSink.java
@@ -0,0 +1,33 @@
+package at.gv.egiz.moazs.backend;
+
+import at.gv.egiz.moazs.client.ClientFactory;
+import at.gv.egiz.moazs.repository.DeliveryRepository;
+import at.gv.egiz.moazs.scheme.Msg2MzsConverter;
+import at.gv.egiz.moazs.scheme.MsgResponse;
+import at.gv.zustellung.app2mzs.xsd.ClientType;
+import at.gv.zustellung.app2mzs.xsd.Mzs2AppPortType;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Component;
+
+import java.util.concurrent.CompletableFuture;
+
+@Component
+public class ForwardResponseToServiceSink {
+
+    private final ClientFactory factory;
+    private final DeliveryRepository repository;
+    private final Msg2MzsConverter converter;
+
+    @Autowired
+    public ForwardResponseToServiceSink(ClientFactory factory, DeliveryRepository repository, Msg2MzsConverter converter) {
+        this.factory = factory;
+        this.repository = repository;
+        this.converter = converter;
+    }
+
+    public CompletableFuture<Void> send(MsgResponse msgResponse, ClientType params) {
+        var binaryResponse = repository.retrieveBinaryResponse(msgResponse.getResponseID());
+        Mzs2AppPortType client = factory.create(params, Mzs2AppPortType.class);
+        return msgResponse.sendToMzsClient(converter, binaryResponse, client);
+    }
+}
diff --git a/src/main/java/at/gv/egiz/moazs/backend/MsgResponseBackend.java b/src/main/java/at/gv/egiz/moazs/backend/MsgResponseBackend.java
index 59db396..9e3cd36 100644
--- a/src/main/java/at/gv/egiz/moazs/backend/MsgResponseBackend.java
+++ b/src/main/java/at/gv/egiz/moazs/backend/MsgResponseBackend.java
@@ -26,18 +26,22 @@ public class MsgResponseBackend implements Consumer<String> {
 
     private final DeliveryRepository repository;
     private final Consumer<byte[]> signatureVerifier;
-    private final SaveResponseToFileSink saveResponseToFileSink;
+    private final SaveResponseToFileSink saveResponseSink;
     private final LogResponseSink logResponseSink;
+    private final ForwardResponseToServiceSink forwardResponseSink;
 
     @Autowired
     public MsgResponseBackend(DeliveryRepository repository,
                               Consumer<byte[]> signatureVerifier,
                               SaveResponseToFileSink saveResponseToFileSink,
-                              LogResponseSink logResponseSink) {
+                              LogResponseSink logResponseSink,
+                              ForwardResponseToServiceSink forwardResponseSink) {
         this.repository = repository;
         this.signatureVerifier = signatureVerifier;
-        this.saveResponseToFileSink = saveResponseToFileSink;
+        this.saveResponseSink = saveResponseToFileSink;
         this.logResponseSink = logResponseSink;
+        this.forwardResponseSink = forwardResponseSink;
+
     }
 
     /**
@@ -84,13 +88,19 @@ public class MsgResponseBackend implements Consumer<String> {
 
         var sinkParams = getSinkParams(msgResponse);
 
-        if (sinkParams.getSafeResponseToFile().isActive()) {
-            supplyAsync(() -> saveResponseToFileSink.save(msgResponse, sinkParams.getSafeResponseToFile().getPath()));
+        if (sinkParams.getSaveResponseToFile().isActive()) {
+            supplyAsync(() -> saveResponseSink.save(msgResponse, sinkParams.getSaveResponseToFile().getPath()));
         }
 
         if (sinkParams.isLogResponse()) {
             supplyAsync(() -> logResponseSink.log(msgResponse));
         }
+
+        if (sinkParams.getForwardResponseToService().isActive()) {
+            supplyAsync(() -> forwardResponseSink.send(
+                    msgResponse, sinkParams.getForwardResponseToService().getMzsClient()));
+        }
+
     }
 
     private MsgResponseSinksType getSinkParams(MsgResponse msgResponse) {