content: /*
   * Copyright (C) 2013 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 android.os;
  
  import android.annotation.UnsupportedAppUsage;
  import android.util.MathUtils;
  
  /**
   * Parcelable containing a raw Parcel of data.
   * @hide
   */
  public class ParcelableParcel implements Parcelable {
      final Parcel mParcel;
      final ClassLoader mClassLoader;
  
      @UnsupportedAppUsage
      public ParcelableParcel(ClassLoader loader) {
          mParcel = Parcel.obtain();
          mClassLoader = loader;
      }
  
      public ParcelableParcel(Parcel src, ClassLoader loader) {
          mParcel = Parcel.obtain();
          mClassLoader = loader;
          int size = src.readInt();
          if (size < 0) {
              throw new IllegalArgumentException("Negative size read from parcel");
          }
  
          int pos = src.dataPosition();
          src.setDataPosition(MathUtils.addOrThrow(pos, size));
          mParcel.appendFrom(src, pos, size);
      }
  
      @UnsupportedAppUsage
      public Parcel getParcel() {
          mParcel.setDataPosition(0);
          return mParcel;
      }
  
      @UnsupportedAppUsage
      public ClassLoader getClassLoader() {
          return mClassLoader;
      }
  
      @Override
      public int describeContents() {
          return 0;
      }
  
      @Override
      public void writeToParcel(Parcel dest, int flags) {
          dest.writeInt(mParcel.dataSize());
          dest.appendFrom(mParcel, 0, mParcel.dataSize());
      }
  
      @UnsupportedAppUsage
      public static final Parcelable.ClassLoaderCreator<ParcelableParcel> CREATOR
              = new Parcelable.ClassLoaderCreator<ParcelableParcel>() {
          public ParcelableParcel createFromParcel(Parcel in) {
              return new ParcelableParcel(in, null);
          }
  
          public ParcelableParcel createFromParcel(Parcel in, ClassLoader loader) {
              return new ParcelableParcel(in, loader);
          }
  
          public ParcelableParcel[] newArray(int size) {
              return new ParcelableParcel[size];
          }
      };
  }
  