Database connection

build.gradle.kts

@@ -9,7 +9,7 @@ plugins {
 val version = "0.0.1"
 val group = "one.oktw"
 
-val galaxyLibVersion = "dc1e26cd"
+val galaxyLibVersion = "78eec6fa"
 
 repositories {
     mavenCentral()

src/main/kotlin/one/oktw/galaxy/Main.kt

@@ -40,6 +40,7 @@ import one.oktw.galaxy.command.commands.Join
 import one.oktw.galaxy.command.commands.Spawn
 import one.oktw.galaxy.event.EventManager
 import one.oktw.galaxy.event.type.ProxyResponseEvent
+import one.oktw.galaxy.internal.DatabaseManager
 import one.oktw.galaxy.item.event.CustomItemEventHandler
 import one.oktw.galaxy.mixin.interfaces.CustomRecipeManager
 import one.oktw.galaxy.player.Harvest
@@ -55,6 +56,9 @@ class Main : DedicatedServerModInitializer {
         private set
     lateinit var eventManager: EventManager
         private set
+    lateinit var dbManager: DatabaseManager
+        private set
+
 
     companion object {
         val PROXY_IDENTIFIER = Identifier("galaxy", "proxy")
@@ -67,6 +71,7 @@ class Main : DedicatedServerModInitializer {
                 null
             } ?: ProxyAPI.dummyUUID
         }
+        val dbPath = System.getenv("dbPath") ?: ""
     }
 
     override fun onInitializeServer() {
@@ -114,5 +119,10 @@ class Main : DedicatedServerModInitializer {
 
         // server.log("current server id is $selfUID
         println("current server id is $selfUUID")
+
+        dbManager = DatabaseManager(dbPath)
+
+        // server.log("current server id is $selfUID
+        println("database is ready")
     }
 }

src/main/kotlin/one/oktw/galaxy/internal/DatabaseManager.kt

@@ -0,0 +1,48 @@
+/*
+ * OKTW Galaxy Project
+ * Copyright (C) 2018-2021
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published
+ * by the Free Software Foundation, either version 3 of the License, or
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package one.oktw.galaxy.internal
+
+import com.mongodb.ConnectionString
+import com.mongodb.MongoClientSettings
+import com.mongodb.reactivestreams.client.MongoClients
+import org.bson.codecs.configuration.CodecRegistries.fromRegistries
+import org.bson.codecs.pojo.Conventions.*
+import org.bson.codecs.pojo.PojoCodecProvider
+
+class DatabaseManager(dbPath: String) {
+    val database = PojoCodecProvider.builder() // POJO settings
+        .automatic(true)
+        .conventions(listOf(SET_PRIVATE_FIELDS_CONVENTION, ANNOTATION_CONVENTION, CLASS_AND_PROPERTY_CONVENTION))
+        .build()
+        .let {
+            // register codec
+            fromRegistries(
+                MongoClientSettings.getDefaultCodecRegistry()
+            )
+        }
+        .let {
+            // connect settings
+            MongoClientSettings.builder()
+                .codecRegistry(it)
+                .applyConnectionString(ConnectionString(dbPath))
+                .build()
+        }
+        .let(MongoClients::create) // connect
+        .getDatabase(ConnectionString(dbPath).database!!) // get database
+}