juplo.de Git - demos/kafka/chat/blob - src/test/java/de/juplo/kafka/chat/backend/persistence/InMemoryWithFilesStorageIT.java

   1 package de.juplo.kafka.chat.backend.persistence;
   2
   3 import com.fasterxml.jackson.databind.ObjectMapper;
   4 import com.fasterxml.jackson.databind.SerializationFeature;
   5 import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
   6 import de.juplo.kafka.chat.backend.api.ShardingStrategy;
   7 import de.juplo.kafka.chat.backend.domain.ChatHomeService;
   8 import de.juplo.kafka.chat.backend.domain.ChatRoomFactory;
   9 import de.juplo.kafka.chat.backend.persistence.inmemory.InMemoryChatRoomFactory;
  10 import de.juplo.kafka.chat.backend.persistence.storage.files.FilesStorageStrategy;
  11 import de.juplo.kafka.chat.backend.persistence.inmemory.InMemoryChatHomeService;
  12 import de.juplo.kafka.chat.backend.persistence.inmemory.InMemoryChatRoomService;
  13 import lombok.extern.slf4j.Slf4j;
  14 import org.junit.jupiter.api.BeforeEach;
  15
  16 import java.io.IOException;
  17 import java.nio.file.Files;
  18 import java.nio.file.Path;
  19 import java.nio.file.Paths;
  20 import java.time.Clock;
  21 import java.util.function.Supplier;
  22
  23
  24 @Slf4j
  25 public class InMemoryWithFilesStorageIT extends AbstractStorageStrategyIT
  26 {
  27   final static Path path = Paths.get("target","local-json-files");
  28
  29   final Clock clock;
  30   final ObjectMapper mapper;
  31   final FilesStorageStrategy storageStrategy;
  32
  33
  34   public InMemoryWithFilesStorageIT()
  35   {
  36     clock = Clock.systemDefaultZone();
  37     mapper = new ObjectMapper();
  38     mapper.registerModule(new JavaTimeModule());
  39     mapper.disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS);
  40     storageStrategy = new FilesStorageStrategy(
  41         path,
  42         clock,
  43         8,
  44         messageFlux -> new InMemoryChatRoomService(messageFlux),
  45         mapper);
  46   }
  47
  48
  49   @Override
  50   protected StorageStrategy getStorageStrategy()
  51   {
  52     return storageStrategy;
  53   }
  54
  55   @Override
  56   protected Supplier<ChatHomeService> getChatHomeServiceSupplier()
  57   {
  58     return () -> new InMemoryChatHomeService(1, getStorageStrategy().read());
  59   }
  60
  61   @Override
  62   protected ChatRoomFactory getChatRoomFactory()
  63   {
  64     ShardingStrategy strategy = chatRoomId -> 0;
  65     return new InMemoryChatRoomFactory(strategy, clock, 8);
  66   }
  67
  68   @BeforeEach
  69   void reset() throws Exception
  70   {
  71     if (Files.exists(path))
  72     {
  73       Files
  74           .walk(path)
  75           .forEach(file ->
  76           {
  77             try
  78             {
  79               if (!file.equals(path))
  80               {
  81                 log.debug("Deleting file {}", file);
  82                 Files.delete(file);
  83               }
  84             }
  85             catch (IOException e)
  86             {
  87               throw new RuntimeException(e);
  88             }
  89           });
  90       log.debug("Deleting data-directory {}", path);
  91       Files.delete(path);
  92     }
  93   }
  94 }