com.neurosys.seo.ajax.wicket.filters

Class SEOAjaxGenPagesWicketFilter

java.lang.Object

org.apache.wicket.protocol.http.WicketFilter

com.neurosys.filters.SiteWicketFilter

com.neurosys.seo.ajax.wicket.filters.SEOAjaxGenPagesWicketFilter

All Implemented Interfaces:

javax.servlet.Filter

public class SEOAjaxGenPagesWicketFilter
extends SiteWicketFilter

If the Application uses Ajax pages that generate HTML via JavaScript and we want to make the pages also Crawler Friendly as specified in Google specs then we use this filter so that the pages Generated by HTMLPublisherListener can be accessed by the FIlter directly when the Crawler requests for them.

Filter Init Params:

• contentExtractorBeanId - Spring Bean id for the ContentExtractor
• htmlPublisherListenerBeanId - String Bean Id of the HTMLPublisherListener ; used to generate a fresh page & publish if no published version is available

Startup related code. Invoking container, pre-processing classes etc. Before the main application(SiteApplication) kicks in via the framework.

Author:

arjun_dhar

Field Summary

Fields

Modifier and Type	Field and Description
static String	GOOGLE_AJAX_CRAWL_FRAGMENT As per Google specs the crawler will convert all != (Ajax Pages) to URL's with param _escaped_fragment_ and expect the server to render back the pure HTML version.

Fields inherited from class com.neurosys.filters.SiteWicketFilter

SITE_APPLICATION_INSTANCE

Fields inherited from class org.apache.wicket.protocol.http.WicketFilter

APP_FACT_PARAM, FILTER_MAPPING_PARAM, FILTER_PATH_ATTR, IGNORE_PATHS_PARAM

Constructor Summary

Constructors

Constructor and Description
SEOAjaxGenPagesWicketFilter()

Method Summary

Modifier and Type	Method and Description
void	doFilter(javax.servlet.ServletRequest request, javax.servlet.ServletResponse response, javax.servlet.FilterChain chain)
protected Object	getSpringBean(String beanId)
protected void	writeToResponse(String html, javax.servlet.http.HttpServletResponse response) Write the HTML to the Filter Response

Methods inherited from class com.neurosys.filters.SiteWicketFilter

getProvideApplicationRelPathRegEx, init, provideApplication, setAppSettings

Methods inherited from class org.apache.wicket.protocol.http.WicketFilter

createRequestContext, destroy, doGet, getApplicationFactory, getClassLoader, getFilterConfig, getFilterPath, getLastModified, getRelativePath, getWebApplication, isPortletContextAvailable, newWicketFilterPortletContext

Methods inherited from class java.lang.Object

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

Field Detail

GOOGLE_AJAX_CRAWL_FRAGMENT

public static final String GOOGLE_AJAX_CRAWL_FRAGMENT

As per Google specs the crawler will convert all != (Ajax Pages) to URL's with param _escaped_fragment_ and expect the server to render back the pure HTML version.

See Also:

Constant Field Values

Constructor Detail

SEOAjaxGenPagesWicketFilter

public SEOAjaxGenPagesWicketFilter()
                            throws Exception

Throws:

Exception

Method Detail

getSpringBean

protected final Object getSpringBean(String beanId)

writeToResponse

protected void writeToResponse(String html,
                               javax.servlet.http.HttpServletResponse response)
                        throws IOException

Write the HTML to the Filter Response

Parameters:

html - as String

response - as HttpServletResponse

Throws:

IOException

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

Overrides:

doFilter in class SiteWicketFilter

Throws:

IOException

javax.servlet.ServletException