Use interfaceSerializer

Signed-off-by: alperozturk <alper_ozturk@proton.me>

app/src/main/java/com/nextcloud/utils/InterfaceSerializer.java

@@ -0,0 +1,56 @@
+/*
+ * Nextcloud Android client application
+ *
+ * @author Alper Ozturk
+ * Copyright (C) 2023 Alper Ozturk
+ * Copyright (C) 2023 Nextcloud GmbH
+ *
+ * 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 com.nextcloud.utils;
+
+import com.google.gson.JsonDeserializationContext;
+import com.google.gson.JsonDeserializer;
+import com.google.gson.JsonElement;
+import com.google.gson.JsonSerializationContext;
+import com.google.gson.JsonSerializer;
+
+import java.lang.reflect.Type;
+
+final public class InterfaceSerializer<T> implements JsonSerializer<T>, JsonDeserializer<T> {
+
+    private final Class<T> implementationClass;
+
+    private InterfaceSerializer(final Class<T> implementationClass) {
+        this.implementationClass = implementationClass;
+    }
+
+    public static <T> InterfaceSerializer<T> interfaceSerializer(final Class<T> implementationClass) {
+        return new InterfaceSerializer<>(implementationClass);
+    }
+
+    @Override
+    public JsonElement serialize(final T value, final Type type, final JsonSerializationContext context) {
+        final Type targetType = value != null
+            ? value.getClass()
+            : type;
+        return context.serialize(value, targetType);
+    }
+
+    @Override
+    public T deserialize(final JsonElement jsonElement, final Type typeOfT, final JsonDeserializationContext context) {
+        return context.deserialize(jsonElement, implementationClass);
+    }
+}