content: /*
   * Copyright (C) 2015 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;
  
  /**
   * Helper class for reading pooling strings from a Parcel.  It must be used
   * in conjunction with {@link android.os.PooledStringWriter}.  This really needs
   * to be pushed in to Parcel itself, but doing that is...  complicated.
   * @hide
   */
  public class PooledStringReader {
      private final Parcel mIn;
  
      /**
       * The pool of strings we have collected so far.
       */
      private final String[] mPool;
  
      public PooledStringReader(Parcel in) {
          mIn = in;
          final int size = in.readInt();
          mPool = new String[size];
      }
  
      public int getStringCount() {
          return mPool.length;
      }
  
      public String readString() {
          int idx = mIn.readInt();
          if (idx >= 0) {
              return mPool[idx];
          } else {
              idx = (-idx) - 1;
              String str = mIn.readString();
              mPool[idx] = str;
              return str;
          }
      }
  }
  