X-Git-Url: http://juplo.de/gitweb/?a=blobdiff_plain;f=src%2Fmain%2Fjava%2Fde%2Fjuplo%2Fkafka%2Fchat%2Fbackend%2Fpersistence%2Finmemory%2FInMemoryServicesConfiguration.java;h=175f714056ed1f0d141e7539d9c59a96cfac3959;hb=5c2cfba556815cf32950e8918f99e06299dee015;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..175f7140 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
@@ -1,44 +1,110 @@
 package de.juplo.kafka.chat.backend.persistence.inmemory;
 
 import de.juplo.kafka.chat.backend.ChatBackendProperties;
-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;
 import org.springframework.context.annotation.Configuration;
 
 import java.time.Clock;
+import java.util.stream.IntStream;
 
 
 @ConditionalOnProperty(
     prefix = "chat.backend",
     name = "services",
-    havingValue = "in-memory",
+    havingValue = "inmemory",
     matchIfMissing = true)
 @Configuration
 public class InMemoryServicesConfiguration
 {
   @Bean
-  InMemoryChatHomeService chatHomeService(StorageStrategy storageStrategy)
+  @ConditionalOnProperty(
+      prefix = "chat.backend.inmemory",
+      name = "sharding-strategy",
+      havingValue = "none",
+      matchIfMissing = true)
+  ChatHome noneShardingChatHome(InMemoryChatHomeService chatHomeService)
   {
-    return new InMemoryChatHomeService(1, storageStrategy.read());
+    return new SimpleChatHome(chatHomeService);
+  }
+
+  @Bean
+  @ConditionalOnProperty(
+      prefix = "chat.backend.inmemory",
+      name = "sharding-strategy",
+      havingValue = "kafkalike")
+  ChatHome kafkalikeShardingChatHome(
+      ChatBackendProperties properties,
+      InMemoryChatHomeService chatHomeService)
+  {
+    int numShards = properties.getInmemory().getNumShards();
+    SimpleChatHome[] chatHomes = new SimpleChatHome[numShards];
+    IntStream
+        .of(properties.getInmemory().getOwnedShards())
+        .forEach(shard -> chatHomes[shard] = new SimpleChatHome(chatHomeService, shard));
+    ShardingStrategy strategy = new KafkaLikeShardingStrategy(numShards);
+    return new ShardedChatHome(chatHomes, strategy);
+  }
+
+  @Bean
+  InMemoryChatHomeService chatHomeService(
+      ChatBackendProperties properties,
+      StorageStrategy storageStrategy)
+  {
+    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
   InMemoryChatRoomFactory chatRoomFactory(
+      InMemoryChatHomeService service,
       ShardingStrategy strategy,
       Clock clock,
       ChatBackendProperties properties)
   {
     return new InMemoryChatRoomFactory(
+        service,
         strategy,
         clock,
         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());
+  }
 }