configuration file

src/main/java/ru/dmitriymx/minecraft/globalchat/Config.java

@@ -0,0 +1,63 @@
+package ru.dmitriymx.minecraft.globalchat;
+
+import lombok.AllArgsConstructor;
+import org.bukkit.Bukkit;
+import org.bukkit.configuration.file.FileConfiguration;
+import org.bukkit.plugin.java.JavaPlugin;
+
+import java.util.List;
+import java.util.StringJoiner;
+
+@AllArgsConstructor
+class Config {
+
+    private JavaPlugin plugin;
+    private FileConfiguration config;
+
+    String getHosts() {
+        String hosts;
+        List<String> hostList = config.getStringList("kafka.hosts");
+        if (hostList.size() == 0) {
+            Bukkit.getServer().getPluginManager().disablePlugin(plugin);
+            throw new RuntimeException("Empty field 'kafka.hosts'!");
+        } else if (hostList.size() == 1) {
+            hosts = hostList.get(0);
+        } else {
+            StringJoiner sj = new StringJoiner(",");
+            hostList.forEach(sj::add);
+            hosts = sj.toString();
+        }
+
+        return hosts;
+    }
+
+    String getTopic() {
+        String topic = config.getString("kafka.topic");
+        if (topic == null || topic.trim().isEmpty()) {
+            Bukkit.getServer().getPluginManager().disablePlugin(plugin);
+            throw new RuntimeException("Empty field 'kafka.topic'!");
+        }
+
+        return topic;
+    }
+
+    long getDuration() {
+        long duration = config.getLong("kafka.duration");
+        if (duration == 0L) {
+            plugin.getLogger().warning("Field 'kafka.duration' is verry low. Set default value 1000.");
+            duration = 1000L;
+        }
+
+        return duration;
+    }
+
+    String getFormat() {
+        String format = config.getString("message_format");
+        if (format.trim().isEmpty()) {
+            plugin.getLogger().warning("Field 'message_format' is empty. Set default value '{0}: {1}'.");
+            format = "{0}: {1}";
+        }
+
+        return format;
+    }
+}

src/main/java/ru/dmitriymx/minecraft/globalchat/MainPlugin.java

@@ -4,13 +4,17 @@ import org.bukkit.Bukkit;
 import org.bukkit.plugin.java.JavaPlugin;
 import ru.dmitriymx.minecraft.globalchat.mq.KafkaService;
 
+import java.text.MessageFormat;
+
 public class MainPlugin extends JavaPlugin {
 
+    private Config config;
     private KafkaService service;
     private Thread mqThread;
 
     @Override
     public void onEnable() {
+        initConfig();
         initKafkaService();
         getServer().getPluginManager().registerEvents(new ChatListener(service), this);
     }
@@ -20,19 +24,22 @@ public class MainPlugin extends JavaPlugin {
         mqThread.interrupt();
     }
 
+    private void initConfig() {
+        saveDefaultConfig();
+        config = new Config(this, getConfig());
+    }
+
     private void initKafkaService() {
         ClassLoader originalContext = Thread.currentThread().getContextClassLoader();
         Thread.currentThread().setContextClassLoader(null);
-        //FIXME перенести в конфигурацию
-        service = new KafkaService("127.0.0.1:9092", "global-chat", 1000);
+        service = new KafkaService(config.getHosts(), config.getTopic(), config.getDuration());
         Thread.currentThread().setContextClassLoader(originalContext);
 
         mqThread = new Thread(() -> {
             while (!Thread.currentThread().isInterrupted()) {
                 service.get().forEach(messageData -> {
-                    //FIXME формат сообщений должен браться из конфига
-                    Bukkit.getServer().broadcastMessage(String.format(
-                            "%s: %s",
+                    Bukkit.getServer().broadcastMessage(MessageFormat.format(
+                            config.getFormat(),
                             messageData.getPlayerName(),
                             messageData.getMessage()
                     ));

src/main/java/ru/dmitriymx/minecraft/globalchat/mq/KafkaService.java

@@ -59,6 +59,7 @@ public class KafkaService {
                 ChatMessageData data = GSON.fromJson(record.value(), ChatMessageData.class);
                 list.add(data);
             } catch (Exception ignore) {
+                //FIXME
             }
         });
 

src/main/resources/config.yml

@@ -0,0 +1,9 @@
+kafka:
+  hosts: [ '127.0.0.1:9022' ]
+  topic: 'global-chat'
+  duration: 1000
+
+# Global message format.
+# {0} - player name
+# {1} - message
+message_format: '{0}: {1}'