X-Git-Url: https://juplo.de/gitweb/?a=blobdiff_plain;f=src%2Fmain%2Fjava%2Fde%2Fjuplo%2Fkafka%2Fchat%2Fbackend%2Fpersistence%2Finmemory%2FInMemoryServicesConfiguration.java;h=e40d950f576cd1d8bd6705d043ac222c65d3e1ea;hb=3526be7c01fa286f4253c96fd7f6c35abf3694ef;hp=e21ead5a93ff49c9b856453bc0e93a2786432b80;hpb=9d61871563f4be4850cebca4fad0545d504522c3;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 e21ead5a..e40d950f 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
@@ -1,7 +1,9 @@
 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.domain.ChatHome;
 import de.juplo.kafka.chat.backend.persistence.StorageStrategy;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
 import org.springframework.context.annotation.Bean;
@@ -13,15 +15,38 @@ import java.time.Clock;
 @ConditionalOnProperty(
     prefix = "chat.backend",
     name = "services",
-    havingValue = "in-memory",
+    havingValue = "inmemory",
     matchIfMissing = true)
 @Configuration
 public class InMemoryServicesConfiguration
 {
   @Bean
-  InMemoryChatHomeService chatHomeService(StorageStrategy storageStrategy)
+  ChatHome[] chatHomes(
+      ChatBackendProperties properties,
+      InMemoryChatHomeService chatHomeService,
+      StorageStrategy storageStrategy)
   {
-    return new InMemoryChatHomeService(1, storageStrategy.read());
+    ChatHome[] chatHomes = new ChatHome[properties.getInmemory().getNumShards()];
+    storageStrategy
+        .read()
+        .subscribe(chatRoom ->
+        {
+          int shard = chatRoom.getShard();
+          if (chatHomes[shard] == null)
+            chatHomes[shard] = new ChatHome(chatHomeService, shard);
+        });
+    return chatHomes;
+  }
+
+  @Bean
+  InMemoryChatHomeService chatHomeService(
+      ChatBackendProperties properties,
+      StorageStrategy storageStrategy)
+  {
+    return new InMemoryChatHomeService(
+        properties.getInmemory().getNumShards(),
+        properties.getInmemory().getOwnedShards(),
+        storageStrategy.read());
   }
 
   @Bean
@@ -36,9 +61,25 @@ public class InMemoryServicesConfiguration
         properties.getChatroomBufferSize());
   }
 
+  @ConditionalOnProperty(
+      prefix = "chat.backend.inmemory",
+      name = "sharding-strategy",
+      havingValue = "none",
+      matchIfMissing = true)
   @Bean
-  ShardingStrategy shardingStrategy()
+  ShardingStrategy defaultShardingStrategy()
   {
     return chatRoomId -> 0;
   }
+
+  @ConditionalOnProperty(
+      prefix = "chat.backend.inmemory",
+      name = "sharding-strategy",
+      havingValue = "kafkalike")
+  @Bean
+  ShardingStrategy kafkalikeShardingStrategy(ChatBackendProperties properties)
+  {
+    return new KafkaLikeShardingStrategy(
+        properties.getInmemory().getNumShards());
+  }
 }