refactor: Refined (simplified) `StorageStrategy`

[demos/kafka/chat] / src / main / java / de / juplo / kafka / chat / backend / ChatBackendConfiguration.java

diff --git a/src/main/java/de/juplo/kafka/chat/backend/ChatBackendConfiguration.java b/src/main/java/de/juplo/kafka/chat/backend/ChatBackendConfiguration.java
index 34036dd..87965ab 100644 (file)
--- a/src/main/java/de/juplo/kafka/chat/backend/ChatBackendConfiguration.java
+++ b/src/main/java/de/juplo/kafka/chat/backend/ChatBackendConfiguration.java
@@ -1,27 +1,54 @@
 package de.juplo.kafka.chat.backend;
 
-import de.juplo.kafka.chat.backend.domain.ChatroomFactory;
-import de.juplo.kafka.chat.backend.persistence.InMemoryChatroomFactory;
-import de.juplo.kafka.chat.backend.persistence.InMemoryPersistenceStrategy;
+import de.juplo.kafka.chat.backend.domain.ChatHome;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import de.juplo.kafka.chat.backend.domain.ChatHomeService;
+import de.juplo.kafka.chat.backend.persistence.inmemory.InMemoryChatHomeService;
+import de.juplo.kafka.chat.backend.persistence.storage.files.FilesStorageStrategy;
+import de.juplo.kafka.chat.backend.persistence.StorageStrategy;
+import de.juplo.kafka.chat.backend.persistence.inmemory.InMemoryChatRoomService;
+import org.springframework.boot.context.properties.EnableConfigurationProperties;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 
+import java.nio.file.Paths;
 import java.time.Clock;
 
 
 @Configuration
+@EnableConfigurationProperties(ChatBackendProperties.class)
 public class ChatBackendConfiguration
 {
   @Bean
-  ChatroomFactory chatroomFactory(InMemoryPersistenceStrategy persistenceStrategy)
+  public ChatHome chatHome(ChatHomeService chatHomeService)
   {
-    return new InMemoryChatroomFactory(persistenceStrategy);
+    return new ChatHome(chatHomeService);
   }
 
   @Bean
-  InMemoryPersistenceStrategy persistenceStrategy()
+  InMemoryChatHomeService chatHomeService(
+      StorageStrategy storageStrategy,
+      Clock clock,
+      ChatBackendProperties properties)
   {
-    return new InMemoryPersistenceStrategy();
+    return new InMemoryChatHomeService(
+        storageStrategy.read(),
+        clock,
+        properties.getChatroomBufferSize());
+  }
+
+  @Bean
+  public StorageStrategy storageStrategy(
+      ChatBackendProperties properties,
+      Clock clock,
+      ObjectMapper mapper)
+  {
+    return new FilesStorageStrategy(
+        Paths.get(properties.getStorageDirectory()),
+        clock,
+        properties.getChatroomBufferSize(),
+        messageFlux -> new InMemoryChatRoomService(messageFlux),
+        mapper);
   }
 
   @Bean