Creating an input or output stream on a ByteBuffer : InputStream « File Input Output « Java

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Java » File Input Output » InputStream 




Creating an input or output stream on a ByteBuffer
      

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.nio.ByteBuffer;

public class Main {
  public static void main(String[] argvthrows Exception {
    ByteBuffer buf = ByteBuffer.allocate(10);
    OutputStream os = new ByteBufferBackedOutputStream(buf);
    InputStream is = new  ByteBufferBackedInputStream(buf);
  }

}
class ByteBufferBackedInputStream extends InputStream{
  
  ByteBuffer buf;
  ByteBufferBackedInputStreamByteBuffer buf){
    this.buf = buf;
  }
  public synchronized int read() throws IOException {
    if (!buf.hasRemaining()) {
      return -1;
    }
    return buf.get();
  }
  public synchronized int read(byte[] bytes, int off, int lenthrows IOException {
    len = Math.min(len, buf.remaining());
    buf.get(bytes, off, len);
    return len;
  }
}
class ByteBufferBackedOutputStream extends OutputStream{
  ByteBuffer buf;
  ByteBufferBackedOutputStreamByteBuffer buf){
    this.buf = buf;
  }
  public synchronized void write(int bthrows IOException {
    buf.put((byteb);
  }

  public synchronized void write(byte[] bytes, int off, int lenthrows IOException {
    buf.put(bytes, off, len);
  }
  
}

   
    
    
    
    
    
  














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11.Deserializes an object from an input stream.
12.Reads at most certain bytes from input stream and returns them as a byte array.
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15.EOLConvertingInputStream: InputStream which converts \r bytes not followed by \n and \n not preceded by \r to \r\n.
16.A line reading wrapper that works with byte streams.
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19.This input stream wrapper closes the base input stream when fully read.
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