content: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you 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 org.apache.beam.sdk.coders;
  
  import java.io.EOFException;
  import java.io.IOException;
  import java.io.InputStream;
  import java.io.OutputStream;
  import org.apache.beam.vendor.guava.v32_1_2_jre.com.google.common.io.ByteStreams;
  import org.apache.beam.vendor.guava.v32_1_2_jre.com.google.common.primitives.Longs;
  
  class BitConverters {
    private BitConverters() {}
  
    static long readBigEndianLong(InputStream in) throws IOException {
      byte[] buf = new byte[8];
      ByteStreams.readFully(in, buf);
  
      return Longs.fromByteArray(buf);
    }
  
    static int readBigEndianInt(InputStream in) throws IOException {
      int b1 = in.read();
      int b2 = in.read();
      int b3 = in.read();
      int b4 = in.read();
  
      if ((b1 | b2 | b3 | b4) < 0) {
        throw new EOFException();
      }
  
      return (b1 & 255) << 24 | (b2 & 255) << 16 | (b3 & 255) << 8 | (b4 & 255);
    }
  
    static short readBigEndianShort(InputStream in) throws IOException {
      int b1 = in.read();
      int b2 = in.read();
  
      if ((b1 | b2) < 0) {
        throw new EOFException();
      }
  
      return (short) ((b1 & 255) << 8 | (b2 & 255));
    }
  
    static void writeBigEndianLong(long value, OutputStream out) throws IOException {
      byte[] buf = Longs.toByteArray(value);
      out.write(buf);
    }
  
    static void writeBigEndianInt(int value, OutputStream out) throws IOException {
      out.write((byte) (value >>> 24) & 0xFF);
      out.write((byte) (value >>> 16) & 0xFF);
      out.write((byte) (value >>> 8) & 0xFF);
      out.write((byte) value);
    }
  
    static void writeBigEndianShort(short value, OutputStream out) throws IOException {
      out.write((byte) (value >> 8));
      out.write((byte) value);
    }
  }
  