content: /*
   * Copyright (C) 2016 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.google.android.exoplayer2.ext.cronet;
  
  import static java.lang.Math.min;
  
  import java.io.IOException;
  import java.nio.ByteBuffer;
  import org.chromium.net.UploadDataProvider;
  import org.chromium.net.UploadDataSink;
  
  /** A {@link UploadDataProvider} implementation that provides data from a {@code byte[]}. */
  /* package */ final class ByteArrayUploadDataProvider extends UploadDataProvider {
  
    private final byte[] data;
  
    private int position;
  
    public ByteArrayUploadDataProvider(byte[] data) {
      this.data = data;
    }
  
    @Override
    public long getLength() {
      return data.length;
    }
  
    @Override
    public void read(UploadDataSink uploadDataSink, ByteBuffer byteBuffer) throws IOException {
      int readLength = min(byteBuffer.remaining(), data.length - position);
      byteBuffer.put(data, position, readLength);
      position += readLength;
      uploadDataSink.onReadSucceeded(false);
    }
  
    @Override
    public void rewind(UploadDataSink uploadDataSink) throws IOException {
      position = 0;
      uploadDataSink.onRewindSucceeded();
    }
  }
  