1 files changed, 45 insertions, 0 deletions
diff --git a/src/main/java/at/gv/egiz/moazs/DeliveryPreprocessor.java b/src/main/java/at/gv/egiz/moazs/DeliveryPreprocessor.java
new file mode 100644
index 0000000..2bb621d
--- /dev/null
+++ b/src/main/java/at/gv/egiz/moazs/DeliveryPreprocessor.java
@@ -0,0 +1,45 @@
+package at.gv.egiz.moazs;
+
+import at.gv.e_government.reference.namespace.zustellung.mzs.app2mzs_.ConfigType;
+import at.gv.e_government.reference.namespace.zustellung.mzs.app2mzs_.ConfigType.ConfigTypeBuilder;
+import at.gv.e_government.reference.namespace.zustellung.mzs.app2mzs_.DeliveryRequestType;
+import at.gv.e_government.reference.namespace.zustellung.mzs.app2mzs_.DeliveryRequestType.DeliveryRequestTypeBuilder;
+import org.springframework.stereotype.Component;
+
+import static at.gv.egiz.moazs.util.NullCoalesce.coalesce;
+
+@Component
+public class DeliveryPreprocessor {
+
+    /**
+     * Validates and augments an incoming {@code request}
+     *
+     * Validates a {@code request} to ensure the availability of all mandatory fields. Where possible, the method
+     * augments the request with values taken from the app's configuration.
+     * @param request
+     * @return validated and augmented request
+     */
+    public DeliveryRequestType preProcess(DeliveryRequestType request) {
+
+        validateRequest(request);
+
+        return new DeliveryRequestTypeBuilder(request)
+                .withConfig(coalesce(request.getConfig(), initDefaultConfig()).get())
+                .build();
+    }
+
+    private void validateRequest(DeliveryRequestType request) {
+        if (request.getMetaData() == null)
+            throw new IllegalArgumentException("Metadata is missing.");
+
+        if (request.getMetaData().getAppDeliveryID() == null)
+            throw new IllegalArgumentException("AppDeliveryID is missing.");
+    }
+
+    private ConfigType initDefaultConfig() {
+        return new ConfigTypeBuilder()
+                .withPerformQueryPersonRequest(false)
+                .build();
+    }
+
+}