text: /*
   * The MIT License
   *
   * Copyright 2017 Ayesha.
   *
   * Permission is hereby granted, free of charge, to any person obtaining a copy
   * of this software and associated documentation files (the "Software"), to deal
   * in the Software without restriction, including without limitation the rights
   * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   * copies of the Software, and to permit persons to whom the Software is
   * furnished to do so, subject to the following conditions:
   *
   * The above copyright notice and this permission notice shall be included in
   * all copies or substantial portions of the Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
   * THE SOFTWARE.
   */
  package com.github.horrorho.ragingmoose;
  
  import java.io.IOException;
  import java.nio.ByteBuffer;
  import static java.nio.ByteOrder.LITTLE_ENDIAN;
  import java.nio.channels.ReadableByteChannel;
  import javax.annotation.Nonnull;
  import javax.annotation.ParametersAreNonnullByDefault;
  import javax.annotation.WillNotClose;
  import javax.annotation.concurrent.NotThreadSafe;
  
  /**
   *
   * @author Ayesha
   */
  @NotThreadSafe
  @ParametersAreNonnullByDefault
  class RawBlockHeader {
  
      private final ByteBuffer bb = ByteBuffer.allocate(4).order(LITTLE_ENDIAN);
  
      private int nRawBytes;
  
      @Nonnull
      RawBlockHeader load(@WillNotClose ReadableByteChannel ch) throws IOException {
          bb.rewind();
          IO.readFully(ch, bb).flip();
  
          nRawBytes = bb.getInt();
  
          return this;
      }
  
      int nRawBytes() {
          return nRawBytes;
      }
  
      @Override
      public String toString() {
          return "RawBlockHeader{" + "nRawBytes=" + nRawBytes + '}';
      }
  }
  