content: /*
   * Copyright (C) 2017 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.apksig.internal.util;
  
  import java.io.ByteArrayOutputStream;
  import java.io.IOException;
  import java.io.InputStream;
  
  /**
   * Utilities for byte arrays and I/O streams.
   */
  public final class ByteStreams {
      private ByteStreams() {}
  
      /**
       * Returns the data remaining in the provided input stream as a byte array
       */
      public static byte[] toByteArray(InputStream in) throws IOException {
          ByteArrayOutputStream result = new ByteArrayOutputStream();
          byte[] buf = new byte[16384];
          int chunkSize;
          while ((chunkSize = in.read(buf)) != -1) {
              result.write(buf, 0, chunkSize);
          }
          return result.toByteArray();
      }
  }
  