org.jivesoftware.smack.xmppstream

Class XMPPInputOutputStream

java.lang.Object

org.jivesoftware.smack.xmppstream.XMPPInputOutputStream

Direct Known Subclasses:

Java7ZlibInputOutputStream

public abstract class XMPPInputOutputStream
extends java.lang.Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	XMPPInputOutputStream.FlushBehavior

Field Summary

Fields

Modifier and Type	Field and Description
protected java.lang.String	compressionMethod
protected static XMPPInputOutputStream.FlushBehavior	flushBehavior

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	XMPPInputOutputStream(java.lang.String compressionMethod)

Method Summary

Methods

Modifier and Type	Method and Description
java.lang.String	getCompressionMethod()
abstract java.io.InputStream	getInputStream(java.io.InputStream inputStream)
abstract ExtendedOutputStream	getOutputStream(ExtendedOutputStream outputStream)
abstract boolean	isSupported()
static void	setFlushBehavior(XMPPInputOutputStream.FlushBehavior flushBehavior) Set the flush behavior.

Methods inherited from class java.lang.Object

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

Field Detail

flushBehavior

protected static XMPPInputOutputStream.FlushBehavior flushBehavior

compressionMethod

protected final java.lang.String compressionMethod

Constructor Detail

XMPPInputOutputStream

protected XMPPInputOutputStream(java.lang.String compressionMethod)

Method Detail

setFlushBehavior

public static void setFlushBehavior(XMPPInputOutputStream.FlushBehavior flushBehavior)

Set the flush behavior. The default is XMPPInputOutputStream.FlushBehavior.FULL_FLUSH which may not achieve the best compression ratio, but provides better security against certain attacks. Only use XMPPInputOutputStream.FlushBehavior.SYNC_FLUSH if you fully understand the implications.

The experimental XMPPInputOutputStream.FlushBehavior.ON_CHANNEL_CHANGE theoretically provides the best trade off between efficiency and security. But the feature is not well tested and doesn't work with all compression implementations.

Parameters:

flushBehavior -

See Also:

Attacks against XMPP when using compression

getCompressionMethod

public java.lang.String getCompressionMethod()

isSupported

public abstract boolean isSupported()

getInputStream

public abstract java.io.InputStream getInputStream(java.io.InputStream inputStream)
                                            throws java.io.IOException

Throws:

java.io.IOException

getOutputStream

public abstract ExtendedOutputStream getOutputStream(ExtendedOutputStream outputStream)
                                              throws java.io.IOException

Throws:

java.io.IOException