Class WrappedInputStream

java.lang.Object

java.io.InputStream

java.io.FilterInputStream

cardmanager.impl.networking.WrappedInputStream

All Implemented Interfaces:

Closeable, AutoCloseable

public class WrappedInputStream
extends FilterInputStream

This input stream works in conjunction with the WrappedOutputStream to introduce a protocol for reading arbitrary length data in a uniform way.

Note: See the javadoc for WrappedOutputStream for more information.

See Also:

• WrappedOutputStream

Field Summary

Fields

Modifier and Type	Field	Description
protected boolean	fClosed	To mark that the stream is "closed".
protected DataInputStream	fDataInputStream	Data input stream.
protected int	fPacketCount	Bytes left on input stream for current packet.

Fields inherited from class FilterInputStream

in

Constructor Summary

Constructors

Constructor	Description
WrappedInputStream(InputStream stream)	Constructs a wrapper for the given an input stream.

Method Summary

Modifier and Type	Method	Description
void	close()	Closes the input stream.
int	read()	Reads a single byte.
int	read(byte[] b, int offset, int length)	Reads a block of bytes and returns the total number of bytes read.
long	skip(long n)	Skips the specified number of bytes from the input stream.

Methods inherited from class FilterInputStream

available, mark, markSupported, read, reset

Methods inherited from class InputStream

nullInputStream, readAllBytes, readNBytes, readNBytes, skipNBytes, transferTo

Methods inherited from class Object

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

Field Details

fPacketCount

protected int fPacketCount

Bytes left on input stream for current packet.

fDataInputStream

protected DataInputStream fDataInputStream

Data input stream. This stream is used to input the block sizes from the data stream that are written by the WrappedOutputStream.

Note: The data input stream is only used for reading the byte count for performance reasons. We avoid the method indirection for reading the byte data.

fClosed

protected boolean fClosed

To mark that the stream is "closed".

Constructor Details

WrappedInputStream

public WrappedInputStream(InputStream stream)

Constructs a wrapper for the given an input stream.

Method Details

read

public int read()
         throws IOException

Reads a single byte.

Overrides:

read in class FilterInputStream

Throws:

IOException

read

public int read(byte[] b,
 int offset,
 int length)
         throws IOException

Reads a block of bytes and returns the total number of bytes read.

Overrides:

read in class FilterInputStream

Throws:

IOException

skip

public long skip(long n)
          throws IOException

Skips the specified number of bytes from the input stream.

Overrides:

skip in class FilterInputStream

Throws:

IOException

close

public void close()
           throws IOException

Closes the input stream. This method will search for the end of the wrapped input, positioning the stream at after the end packet.

Note: This method does not close the underlying input stream.

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Overrides:

close in class FilterInputStream

Throws:

IOException