Reads data off a stream, printing every byte read to System.err : StringReader « File Input Output « Java






  1. Java
  2. File Input Output
  3. StringReader

Reads data off a stream, printing every byte read to System.err

  
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import java.io.IOException;
import java.io.InputStream;

/**
 * Reads data off a stream, printing every byte read to System.err.
 */
public class DebugInputStream extends InputStream {

    /**
     * The input stream being wrapped
     */
    InputStream in = null;

    /**
     * Constructor that takes an InputStream to be wrapped.
     *
     * @param in the InputStream to be wrapped
     */
    public DebugInputStream(InputStream in) {
        this.in = in;
    }

    /**
     * Read a byte off the stream
     *
     * @return the byte read off the stream
     * @throws IOException if an exception is encountered when reading
     */
    public int read() throws IOException {
        int b = in.read();
        System.err.write(b);
        return b;
    }

    /**
     * Close the stream
     *
     * @throws IOException if an exception is encountered when closing
     */
    public void close() throws IOException {
        in.close();
    }
}








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