Add CommonCore module

2024-08-04 20:37:28 +02:00
parent 11b4fd3b9b
commit 3e6f8c9b91
88 changed files with 6728 additions and 0 deletions
@@ -0,0 +1,83 @@
+/*
+ * This file is a part of the SteamWar software.
+ *
+ * Copyright (C) 2022  SteamWar.de-Serverteam
+ *
+ * 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
+ * (at your option) 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 de.steamwar;
+
+import java.util.*;
+import java.util.function.Function;
+
+public class RandomGenerator {
+
+    private static final Random random = new Random();
+    private static final Map<Class<?>, Function<Class<?>, ?>> generators = new HashMap<>();
+
+    static {
+        generators.put(Integer.class, (clazz) -> random.nextInt());
+        generators.put(int.class, (clazz) -> random.nextInt());
+        generators.put(Double.class, (clazz) -> random.nextDouble());
+        generators.put(double.class, (clazz) -> random.nextInt());
+        generators.put(Boolean.class, (clazz) -> random.nextBoolean());
+        generators.put(boolean.class, (clazz) -> random.nextBoolean());
+        generators.put(Byte.class, (clazz) -> (byte) random.nextInt(127));
+        generators.put(byte.class, (clazz) -> (byte) random.nextInt(127));
+
+        generators.put(List.class, aClass -> {
+            int length = random.nextInt(10);
+            List<Object> list = new ArrayList<>();
+            for (int i = 0; i < length; i++) {
+                list.add(generators.get(Integer.class).apply(Integer.class));
+            }
+
+            return list;
+        });
+
+        generators.put(String.class, aClass -> {
+            int length = random.nextInt(10);
+            StringBuilder builder = new StringBuilder();
+
+            for (int i = 0; i < length; i++) {
+                builder.append(random.nextInt());
+            }
+
+            return builder.toString();
+        });
+
+        generators.put(Map.class, aClass -> {
+            int length = random.nextInt(10);
+            Map<Object, Object> map = new HashMap<>();
+            for (int i = 0; i < length; i++) {
+                map.put(generators.get(Integer.class).apply(Integer.class), generators.get(String.class).apply(String.class));
+            }
+
+            return map;
+        });
+    }
+
+    public static <T> T generateRandom(Class<T> clazz) {
+        if(clazz.isEnum()) {
+            return generateRandomEnum(clazz);
+        } else {
+            return (T) generators.get(clazz).apply(clazz);
+        }
+    }
+
+    public static <T> T generateRandomEnum(Class<T> clazz) {
+        return clazz.getEnumConstants()[random.nextInt(clazz.getEnumConstants().length)];
+    }
+}