content: /*
   * Copyright (C) 2016 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.BufferOverflowException;
  import java.nio.ByteBuffer;
  
  /**
   * Data sink which stores all received data into the associated {@link ByteBuffer}.
   */
  public class ByteBufferSink implements DataSink {
  
      private final ByteBuffer mBuffer;
  
      public ByteBufferSink(ByteBuffer buffer) {
          mBuffer = buffer;
      }
  
      public ByteBuffer getBuffer() {
          return mBuffer;
      }
  
      @Override
      public void consume(byte[] buf, int offset, int length) throws IOException {
          try {
              mBuffer.put(buf, offset, length);
          } catch (BufferOverflowException e) {
              throw new IOException(
                      "Insufficient space in output buffer for " + length + " bytes", e);
          }
      }
  
      @Override
      public void consume(ByteBuffer buf) throws IOException {
          int length = buf.remaining();
          try {
              mBuffer.put(buf);
          } catch (BufferOverflowException e) {
              throw new IOException(
                      "Insufficient space in output buffer for " + length + " bytes", e);
          }
      }
  }
  