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https://issues.apache.org/jira/browse/WICKET-6194?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15427058#comment-15427058
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Tobias Soloschenko commented on WICKET-6194:
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Hi,
with the last commits I changed the following things:
1. I made some methods protected. The most important method which is protected
now is getPageModificationTime(). The use can override this method to apply
other checks for the page modification date. For example a properties file
which contains the build date - this can be used to check against the
if-modified-since header.
2. applyPageCacheHeader. So that the user can customize the PushHeaderItem
headers
I used a little trick now and I hope this also works for chrome.
I set the expiration date to the "last-modified" date of the file (or what the
user configured) - "Expires" is set to -1 so that the cache entry becomes
invalid immediately. Also I set the max-age to 0 and must-revalidate,
proxy-revalidate. With this options the browser uses the cache but actually
don't cache anything. But what the browser do is to send the
"if-modified-since" date so that the Push API can make use of the browser cache.
Also I changed the SimpleDateFormat to DateTimeFormatter so that there will be
no concurrency issue.
The last thing I added was a bit javadoc.
kind regards
Tobias
> PushBuilder API integration
> ---------------------------
>
> Key: WICKET-6194
> URL: https://issues.apache.org/jira/browse/WICKET-6194
> Project: Wicket
> Issue Type: New Feature
> Affects Versions: 8.0.0-M1
> Reporter: Tobias Soloschenko
> Assignee: Tobias Soloschenko
> Labels: features
> Fix For: 8.0.0-M2
>
>
> Allows to push resources via HeaderItem to the client and make use of the
> http/2 functionality. In the first step this should be an experimental module
> and make use of the server specific APIs until the servlet 4.0 standard is
> finished.
> A reference implementation can be found here:
> https://github.com/klopfdreh/wicket-components-playground/wiki/23.-PushHeaderItem_Servlet4Support
> Working-Branch:
> https://github.com/apache/wicket/tree/WICKET-6194
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