content: /*
   * Copyright (C) 2018 The Android Open Source Project
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package com.android.launcher3.util;
  
  import android.content.Context;
  import android.text.TextUtils;
  import android.util.Log;
  
  import java.lang.reflect.InvocationTargetException;
  
  /**
   * An interface to indicate that a class is dynamically loaded using resource overlay, hence its
   * class name and constructor should be preserved by proguard
   */
  public interface ResourceBasedOverride {
  
      class Overrides {
  
          private static final String TAG = "Overrides";
  
          public static <T extends ResourceBasedOverride> T getObject(
                  Class<T> clazz, Context context, int resId) {
              String className = context.getString(resId);
              if (!TextUtils.isEmpty(className)) {
                  try {
                      Class<?> cls = Class.forName(className);
                      return (T) cls.getDeclaredConstructor(Context.class).newInstance(context);
                  } catch (ClassNotFoundException | InstantiationException | IllegalAccessException
                          | ClassCastException | NoSuchMethodException | InvocationTargetException e) {
                      Log.e(TAG, "Bad overriden class", e);
                  }
              }
  
              try {
                  return clazz.newInstance();
              } catch (InstantiationException|IllegalAccessException e) {
                  throw new RuntimeException(e);
              }
          }
      }
  }
  