Package org.apache.wicket.serialize.java

Class DeflatedJavaSerializer

java.lang.Object

org.apache.wicket.serialize.java.JavaSerializer

org.apache.wicket.serialize.java.DeflatedJavaSerializer

All Implemented Interfaces:

ISerializer

public class DeflatedJavaSerializer
extends JavaSerializer

A JavaSerializer that deflates the outputstream on the fly, reducing page store size by up to a factor 8. Be advised that deflating serialized objects comes at a price of about 2-20ms per page request, depending on the size of the page and the cpu power of the machine.

To use this serializer, put the following code in your application's init:

 getFrameworkSettings().setSerializer(new DeflatedJavaSerializer(getApplicationKey()));
 

Author:

papegaaij

Constructor Summary

Constructors

Constructor	Description
DeflatedJavaSerializer(String applicationKey)	Construct.

Method Summary

Modifier and Type	Method	Description
protected Deflater	createDeflater()	Creates the Deflater.
protected ObjectInputStream	newObjectInputStream(InputStream in)	Gets a new instance of an ObjectInputStream with the provided InputStream.
protected ObjectOutputStream	newObjectOutputStream(OutputStream out)	Gets a new instance of an ObjectOutputStream with the provided OutputStream.

Methods inherited from class org.apache.wicket.serialize.java.JavaSerializer

deserialize, serialize

Methods inherited from class java.lang.Object

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

Constructor Details

DeflatedJavaSerializer

public DeflatedJavaSerializer(String applicationKey)

Construct.

Parameters:

applicationKey -

Method Details

newObjectOutputStream

protected ObjectOutputStream newObjectOutputStream(OutputStream out)
                                            throws IOException

Description copied from class: JavaSerializer

Gets a new instance of an ObjectOutputStream with the provided OutputStream.

Overrides:

newObjectOutputStream in class JavaSerializer

Parameters:

out - The output stream that should be used for the writing

Returns:

a new object output stream instance

Throws:

IOException - if an I/O error occurs while writing stream header

createDeflater

protected Deflater createDeflater()

Creates the Deflater. Override this method to customize the deflater, for example to change the compression level and/or strategy.

Returns:

the Deflater

newObjectInputStream

protected ObjectInputStream newObjectInputStream(InputStream in)
                                          throws IOException

Description copied from class: JavaSerializer

Gets a new instance of an ObjectInputStream with the provided InputStream.

Overrides:

newObjectInputStream in class JavaSerializer

Parameters:

in - The input stream that should be used for the reading

Returns:

a new object input stream instance

Throws:

IOException - if an I/O error occurs while reading stream header