content: /*
   * Copyright (C) 2018 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.server.backup.encryption.chunking;
  
  import java.io.IOException;
  import java.io.OutputStream;
  
  /** Writes data straight to an output stream. */
  public class RawBackupWriter implements BackupWriter {
      private final OutputStream outputStream;
      private long bytesWritten;
  
      /** Constructs a new writer which writes bytes to the given output stream. */
      public RawBackupWriter(OutputStream outputStream) {
          this.outputStream = outputStream;
      }
  
      @Override
      public void writeBytes(byte[] bytes) throws IOException {
          outputStream.write(bytes);
          bytesWritten += bytes.length;
      }
  
      @Override
      public void writeChunk(long start, int length) throws IOException {
          throw new UnsupportedOperationException("RawBackupWriter cannot write existing chunks");
      }
  
      @Override
      public long getBytesWritten() {
          return bytesWritten;
      }
  
      @Override
      public void flush() throws IOException {
          outputStream.flush();
      }
  }
  