Add Redis and InMemory Implementation of DeliveryRequestRepository

- Deployer can choose which implementation to use (by activating
- corresponding profile)
- Add guava dependency
- Extract DeliveryRequestRepository to Interface
- Implement InMemory Repository using guava's cache

1 files changed, 40 insertions, 0 deletions

diff --git a/src/main/java/at/gv/egiz/moazs/InMemoryDeliveryRepository.java b/src/main/java/at/gv/egiz/moazs/InMemoryDeliveryRepository.java
new file mode 100644
index 0000000..aa1e3e9
--- /dev/null
+++ b/src/main/java/at/gv/egiz/moazs/InMemoryDeliveryRepository.java
@@ -0,0 +1,40 @@
+package at.gv.egiz.moazs;
+
+import at.gv.e_government.reference.namespace.zustellung.mzs.app2mzs_.DeliveryRequestType;
+import com.google.common.cache.Cache;
+import com.google.common.cache.CacheBuilder;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.context.annotation.Profile;
+import org.springframework.stereotype.Repository;
+
+import java.util.Optional;
+import java.util.concurrent.TimeUnit;
+
+@Repository
+@Profile("!cluster")
+public class InMemoryDeliveryRepository implements DeliveryRepository {
+
+    private static final Logger logger = LoggerFactory.getLogger(InMemoryDeliveryRepository.class);
+
+    private static final Cache<String, DeliveryRequestType> rep = CacheBuilder.newBuilder()
+            .expireAfterWrite(30, TimeUnit.MINUTES)
+            .build();
+
+    public InMemoryDeliveryRepository() {
+        logger.info("InMemoryDeliveryRepository()");
+    }
+
+    @Override
+    public void add(DeliveryRequestType request) {
+        String key = request.getMetaData().getAppDeliveryID();
+        logger.info("Save DeliveryRequest with AppDeliveryId = {} to Cache.", key);
+        rep.put(key, request);
+    }
+
+    @Override
+    public Optional<DeliveryRequestType> getDeliveryRequest(String appDeliveryID) {
+        DeliveryRequestType deliveryRequestType = rep.getIfPresent(appDeliveryID);
+        return Optional.ofNullable(deliveryRequestType);
+    }
+}