Package org.jgrapes.http

Class ResponseCreationSupport.DefaultMaxAgeCalculator

java.lang.Object

org.jgrapes.http.ResponseCreationSupport.DefaultMaxAgeCalculator

All Implemented Interfaces:

ResponseCreationSupport.MaxAgeCalculator

Enclosing class:

ResponseCreationSupport

public static class ResponseCreationSupport.DefaultMaxAgeCalculator
extends Object
implements ResponseCreationSupport.MaxAgeCalculator

DefaultMaxAgeCalculator provides an implementation that tries to guess a good max age value by looking at the path of the requested resource.

If the path contains the pattern “dash, followed by a number, followed by a dot and a number” it is assumed that the resource is versioned, i.e. its path changes if the resource changes. In this case a max age of one year is returned. In all other cases, a max age value of 60 (one minute) is returned.

Field Summary

Fields

Modifier and Type	Field	Description
static final Pattern	VERSION_PATTERN

Constructor Summary

Constructors

Constructor	Description
DefaultMaxAgeCalculator()

Method Summary

Modifier and Type	Method	Description
int	maxAge(HttpRequest request, MediaType mediaType)	Calculate a max age value for a response using the given request and the media type of the repsonse.

Methods inherited from class java.lang.Object

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

Field Details

VERSION_PATTERN

public static final Pattern VERSION_PATTERN

Constructor Details

DefaultMaxAgeCalculator

public DefaultMaxAgeCalculator()

Method Details

maxAge

public int maxAge(HttpRequest request,
 MediaType mediaType)

Description copied from interface: ResponseCreationSupport.MaxAgeCalculator

Calculate a max age value for a response using the given request and the media type of the repsonse.

Specified by:

maxAge in interface ResponseCreationSupport.MaxAgeCalculator

Parameters:

request - the request, usually only the URI is considered for the calculation

mediaType - the media type of the response

Returns:

the max age value to be used in the response