org.openflow.gui.net
Class CountingDataInputStream

java.lang.Object
  org.openflow.gui.net.CountingDataInputStream

All Implemented Interfaces:

java.io.DataInput

public class CountingDataInputStream
extends java.lang.Object
implements java.io.DataInput

A wrapper around DataInputStream which counts how many bytes have been read. If an IOException occurs, the CountingDataInputStream will lose of bytes read in the case where only some bytes were read before the exception occurred (the count is only updated after a successful operation).

Author:

David Underhill

Constructor Summary

CountingDataInputStream(java.io.InputStream in)
Creates a CountingDataInputStream that uses the specified underlying InputStream.

Method Summary

long	getBytesRead() Returns the number of bytes read from this stream
int	read(byte[] b)
int	read(byte[] b, int off, int len)
boolean	readBoolean()
byte	readByte()
char	readChar()
double	readDouble()
float	readFloat()
void	readFully(byte[] b)
void	readFully(byte[] b, int off, int len)
int	readInt()
java.lang.String	readLine()
long	readLong()
short	readShort()
int	readUnsignedByte()
int	readUnsignedShort()
java.lang.String	readUTF()
int	skipBytes(int n)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

CountingDataInputStream

public CountingDataInputStream(java.io.InputStream in)

Creates a CountingDataInputStream that uses the specified underlying InputStream.

Parameters:

in - the specified input stream

Method Detail

getBytesRead

public long getBytesRead()

Returns the number of bytes read from this stream

read

public final int read(byte[] b)
               throws java.io.IOException

Throws:

java.io.IOException

read

public final int read(byte[] b,
                      int off,
                      int len)
               throws java.io.IOException

Throws:

java.io.IOException

readFully

public final void readFully(byte[] b)
                     throws java.io.IOException

Specified by:

readFully in interface java.io.DataInput

Throws:

java.io.IOException

readFully

public final void readFully(byte[] b,
                            int off,
                            int len)
                     throws java.io.IOException

Specified by:

readFully in interface java.io.DataInput

Throws:

java.io.IOException

skipBytes

public final int skipBytes(int n)
                    throws java.io.IOException

Specified by:

skipBytes in interface java.io.DataInput

Throws:

java.io.IOException

readBoolean

public final boolean readBoolean()
                          throws java.io.IOException

Specified by:

readBoolean in interface java.io.DataInput

Throws:

java.io.IOException

readByte

public final byte readByte()
                    throws java.io.IOException

Specified by:

readByte in interface java.io.DataInput

Throws:

java.io.IOException

readUnsignedByte

public final int readUnsignedByte()
                           throws java.io.IOException

Specified by:

readUnsignedByte in interface java.io.DataInput

Throws:

java.io.IOException

readShort

public final short readShort()
                      throws java.io.IOException

Specified by:

readShort in interface java.io.DataInput

Throws:

java.io.IOException

readUnsignedShort

public final int readUnsignedShort()
                            throws java.io.IOException

Specified by:

readUnsignedShort in interface java.io.DataInput

Throws:

java.io.IOException

readChar

public final char readChar()
                    throws java.io.IOException

Specified by:

readChar in interface java.io.DataInput

Throws:

java.io.IOException

readInt

public final int readInt()
                  throws java.io.IOException

Specified by:

readInt in interface java.io.DataInput

Throws:

java.io.IOException

readLong

public final long readLong()
                    throws java.io.IOException

Specified by:

readLong in interface java.io.DataInput

Throws:

java.io.IOException

readFloat

public final float readFloat()
                      throws java.io.IOException

Specified by:

readFloat in interface java.io.DataInput

Throws:

java.io.IOException

readDouble

public final double readDouble()
                        throws java.io.IOException

Specified by:

readDouble in interface java.io.DataInput

Throws:

java.io.IOException

readLine

public final java.lang.String readLine()
                                throws java.io.IOException

Specified by:

readLine in interface java.io.DataInput

Throws:

java.io.IOException

readUTF

public final java.lang.String readUTF()
                               throws java.io.IOException

Specified by:

readUTF in interface java.io.DataInput

Throws:

java.io.IOException