com.sap.cloud.sdk.cloudplatform.security.servlet

Class HttpCachingHeaderFilter

java.lang.Object

com.sap.cloud.sdk.cloudplatform.security.servlet.HttpCachingHeaderFilter

All Implemented Interfaces:

javax.servlet.Filter

public class HttpCachingHeaderFilter
extends Object
implements javax.servlet.Filter

Activates caching in the ServletResponse, if applicable.

Caching is applicable, if the request URI does not contain a certain json file. If that is the case the response headers for caching are added depending on the previously set response content type. Static files such as stylesheets, scripts, fonts and images are not affected by this filter and will be left with the default caching behavior.

It is recommended to position this filter last in the servlet filter chain.

Field Summary

Fields

Modifier and Type	Field and Description
protected static Set<String>	CACHEABLE_CONTENT_TYPES The constant set of content types which are enabled by default for HTTP caching.

Constructor Summary

Constructors

Constructor and Description
HttpCachingHeaderFilter()

Method Summary

Modifier and Type	Method and Description
void	destroy()
void	doFilter(javax.servlet.ServletRequest request, javax.servlet.ServletResponse response, javax.servlet.FilterChain chain)
void	init(javax.servlet.FilterConfig filterConfig)

Methods inherited from class java.lang.Object

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

Field Detail

CACHEABLE_CONTENT_TYPES

protected static final Set<String> CACHEABLE_CONTENT_TYPES

The constant set of content types which are enabled by default for HTTP caching.

Constructor Detail

HttpCachingHeaderFilter

public HttpCachingHeaderFilter()

Method Detail

init

public void init(javax.servlet.FilterConfig filterConfig)

Specified by:

init in interface javax.servlet.Filter

destroy

public void destroy()

Specified by:

destroy in interface javax.servlet.Filter

doFilter

public void doFilter(javax.servlet.ServletRequest request,
                     javax.servlet.ServletResponse response,
                     javax.servlet.FilterChain chain)
              throws IOException,
                     javax.servlet.ServletException

Specified by:

doFilter in interface javax.servlet.Filter

Throws:

IOException

javax.servlet.ServletException