package cs522.elind.io;

import java.io.*;

public class MonitorObjectInputStream extends ObjectInputStream
{
  protected ObjectInputStream monitor = null;
  protected long totalRead = 0;
  
  public MonitorObjectInputStream(ObjectInputStream in) throws IOException
  {
    monitor = in;
  }
  
  public long bytesRead()
  {
    return totalRead;
  }
  
  public int read() throws IOException
  {
    int read = monitor.read();
    if(read != -1)
    {
      totalRead += read;
    }
    return read;
  }
  
  public int read(byte[] b) throws IOException
  {
    int read = monitor.read(b);
    if(read != -1)
    {
      totalRead += read;
    }
    return read;
  }
  
  public int read(byte[] b, int off, int len) throws IOException
  {
    int read = monitor.read(b, off, len);
    if(read != -1)
    {
      totalRead += read;
    }
    return read;
  }
  
  public long skip(long n) throws IOException
  {
    long read = monitor.skip(n);
    totalRead += read;
    return read;
  }
  
  public int available() throws IOException
  {
    return monitor.available();
  }
  
  public void close() throws IOException
  {
    monitor.close();
  }
  
  public void mark(int readlimit)
  {
    monitor.mark(readlimit);
  }
  
  public void reset() throws IOException
  {
    monitor.reset();
  }
  
  public boolean markSupported()
  {
    return monitor.markSupported();
  }
}