X-Git-Url: https://juplo.de/gitweb/?a=blobdiff_plain;f=src%2Fmain%2Fjava%2Fde%2Fjuplo%2Fkafka%2Fchat%2Fbackend%2Fpersistence%2Finmemory%2FInMemoryServicesConfiguration.java;h=96ef05c26ddebbe0761b2a764002fead64d76396;hb=2095f4c6a102a52f2a15360d1b6355e4990f8f43;hp=94dd5d8a0aa5b39ee437d1f9c190f6b34528914d;hpb=ff98b068a91fc9e60e51bd4a95065633bb8ed2db;p=demos%2Fkafka%2Fchat

diff --git a/src/main/java/de/juplo/kafka/chat/backend/persistence/inmemory/InMemoryServicesConfiguration.java b/src/main/java/de/juplo/kafka/chat/backend/persistence/inmemory/InMemoryServicesConfiguration.java
index 94dd5d8a..96ef05c2 100644
--- a/src/main/java/de/juplo/kafka/chat/backend/persistence/inmemory/InMemoryServicesConfiguration.java
+++ b/src/main/java/de/juplo/kafka/chat/backend/persistence/inmemory/InMemoryServicesConfiguration.java
@@ -1,8 +1,12 @@
 package de.juplo.kafka.chat.backend.persistence.inmemory;
 
 import de.juplo.kafka.chat.backend.ChatBackendProperties;
-import de.juplo.kafka.chat.backend.api.KafkaLikeShardingStrategy;
-import de.juplo.kafka.chat.backend.api.ShardingStrategy;
+import de.juplo.kafka.chat.backend.ChatBackendProperties.ShardingStrategyType;
+import de.juplo.kafka.chat.backend.domain.ShardedChatHome;
+import de.juplo.kafka.chat.backend.persistence.KafkaLikeShardingStrategy;
+import de.juplo.kafka.chat.backend.domain.ShardingStrategy;
+import de.juplo.kafka.chat.backend.domain.ChatHome;
+import de.juplo.kafka.chat.backend.domain.SimpleChatHome;
 import de.juplo.kafka.chat.backend.persistence.StorageStrategy;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
 import org.springframework.context.annotation.Bean;
@@ -20,20 +24,57 @@ import java.time.Clock;
 public class InMemoryServicesConfiguration
 {
   @Bean
-  InMemoryChatHomeService chatHomeService(
+  @ConditionalOnProperty(
+      prefix = "chat.backend.inmemory",
+      name = "sharding-strategy",
+      havingValue = "none",
+      matchIfMissing = true)
+  ChatHome noneShardingChatHome(InMemoryChatHomeService chatHomeService)
+  {
+    return new SimpleChatHome(chatHomeService);
+  }
+
+  @Bean
+  @ConditionalOnProperty(
+      prefix = "chat.backend.inmemory",
+      name = "sharding-strategy",
+      havingValue = "kafkalike")
+  ChatHome kafkalikeShardingChatHome(
       ChatBackendProperties properties,
+      InMemoryChatHomeService chatHomeService,
       StorageStrategy storageStrategy)
   {
-    return new InMemoryChatHomeService(
-        properties.getInmemory().getNumShards(),
-        properties.getInmemory().getOwnedShards(),
-        storageStrategy.read());
+    int numShards = properties.getInmemory().getNumShards();
+    SimpleChatHome[] chatHomes = new SimpleChatHome[numShards];
+    storageStrategy
+        .read()
+        .subscribe(chatRoom ->
+        {
+          int shard = chatRoom.getShard();
+          if (chatHomes[shard] == null)
+            chatHomes[shard] = new SimpleChatHome(chatHomeService, shard);
+        });
+    ShardingStrategy strategy = new KafkaLikeShardingStrategy(numShards);
+    return new ShardedChatHome(chatHomes, strategy);
   }
 
   @Bean
-  InMemoryChatHomeFactory chatHomeFactory(InMemoryChatHomeService service)
+  InMemoryChatHomeService chatHomeService(
+      ChatBackendProperties properties,
+      StorageStrategy storageStrategy)
   {
-    return new InMemoryChatHomeFactory(service);
+    ShardingStrategyType sharding =
+        properties.getInmemory().getShardingStrategy();
+    int numShards = sharding == ShardingStrategyType.none
+        ? 1
+        : properties.getInmemory().getNumShards();
+    int[] ownedShards = sharding == ShardingStrategyType.none
+        ? new int[] { 0 }
+        : properties.getInmemory().getOwnedShards();
+    return new InMemoryChatHomeService(
+        numShards,
+        ownedShards,
+        storageStrategy.read());
   }
 
   @Bean