content: /*
   * Copyright (C) 2014 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.layoutlib.bridge.libcore.io;
  
  import java.nio.ByteBuffer;
  
  import libcore.io.BufferIterator;
  
  /**
   * Provides an implementation of {@link BufferIterator} over a {@link ByteBuffer}.
   */
  public class BridgeBufferIterator extends BufferIterator {
  
      private final long mSize;
      private final ByteBuffer mByteBuffer;
  
      public BridgeBufferIterator(long size, ByteBuffer buffer) {
          mSize = size;
          mByteBuffer = buffer;
      }
  
      @Override
      public void seek(int offset) {
          assert offset <= mSize;
          mByteBuffer.position(offset);
      }
  
      @Override
      public int pos() {
          return mByteBuffer.position();
      }
  
      @Override
      public void skip(int byteCount) {
          int newPosition = mByteBuffer.position() + byteCount;
          assert newPosition <= mSize;
          mByteBuffer.position(newPosition);
      }
  
      @Override
      public void readByteArray(byte[] dst, int dstOffset, int byteCount) {
          assert dst.length >= dstOffset + byteCount;
          mByteBuffer.get(dst, dstOffset, byteCount);
      }
  
      @Override
      public byte readByte() {
          return mByteBuffer.get();
      }
  
      @Override
      public int readInt() {
          return mByteBuffer.getInt();
      }
  
      @Override
      public void readIntArray(int[] dst, int dstOffset, int intCount) {
          while (--intCount >= 0) {
              dst[dstOffset++] = mByteBuffer.getInt();
          }
      }
  
      @Override
      public short readShort() {
          return mByteBuffer.getShort();
      }
  }
  