stella.net.vatt

Class VattInputStream

java.lang.Object

java.io.InputStream

java.io.FilterInputStream

java.io.DataInputStream

stella.net.vatt.VattInputStream

All Implemented Interfaces:

Closeable, DataInput, AutoCloseable

public class VattInputStream
extends DataInputStream

This stream represents an input stream that can handle serialisation of VATT Messages (VattMessage). It extends the DataInputStream by a single method that reads a Vatt acknowledge message. It is used only client-side, otherwise a write method for a command message would be needed, too.

Field Summary

Fields inherited from class java.io.FilterInputStream

in

Constructor Summary

Constructors

Constructor and Description
VattInputStream(InputStream in) Wraps a packet input stream on top of a data output stream.

Method Summary

Modifier and Type	Method and Description
VattAcknowledgeMessage	readMessage() Reads a short GREGOR message from the stream.

Methods inherited from class java.io.DataInputStream

read, read, readBoolean, readByte, readChar, readDouble, readFloat, readFully, readFully, readInt, readLine, readLong, readShort, readUnsignedByte, readUnsignedShort, readUTF, readUTF, skipBytes

Methods inherited from class java.io.FilterInputStream

available, close, mark, markSupported, read, reset, skip

Methods inherited from class java.lang.Object

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

Constructor Detail

VattInputStream

public VattInputStream(InputStream in)

Wraps a packet input stream on top of a data output stream. This output stream, in turn, should be wrapp to the socket input stream during data handling.

Method Detail

readMessage

public VattAcknowledgeMessage readMessage()
                                   throws IOException

Reads a short GREGOR message from the stream. The bytes with index numer 46-49 determine the data length to be read. The first four bytes are the total length of the message, only short message reading is currently supported.

Throws:

IOException