Cache headers plugin example

gistfile1.groovy

withCacheHeaders {
    etag {
        "${content.ident()}:${content.version}".encodeAsSHA1()
    }
    lastModified {
        (content.changedOn ?: content.createdOn)
    }

    generate {
        def activeUser = wcmSecurityService.userName
        request[REQUEST_ATTRIBUTE_USER] = activeUser

        if (content) {
            lastModified (content.changedOn ?: content.createdOn)

            // 1 second caching, better than nothing
            cache validFor: 1, shared:true

            WcmContentController.showContent(this, content)
        } else {
            response.sendError 404, "No content found URI"
            return null
        }
    }
}