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 com.android.apksig.util.DataSink;
  import java.io.IOException;
  import java.nio.ByteBuffer;
  
  /**
   * {@link DataSink} which copies provided input into each of the sinks provided to it.
   */
  public class TeeDataSink implements DataSink {
  
      private final DataSink[] mSinks;
  
      public TeeDataSink(DataSink[] sinks) {
          mSinks = sinks;
      }
  
      @Override
      public void consume(byte[] buf, int offset, int length) throws IOException {
          for (DataSink sink : mSinks) {
              sink.consume(buf, offset, length);
          }
      }
  
      @Override
      public void consume(ByteBuffer buf) throws IOException {
          int originalPosition = buf.position();
          for (int i = 0; i < mSinks.length; i++) {
              if (i > 0) {
                  buf.position(originalPosition);
              }
              mSinks[i].consume(buf);
          }
      }
  }
  