XWiki: Developing simple apps quickly

XWiki
Developing simple web applications quickly

Copyright (c) Vincent Massol - 2012
Ocober 2012

Friday, October 12, 12

Agenda
• Architecture
• Developing on XWiki
• Usages
• Pros and cons
• QA


Architecture



XWiki Platform

... for developing (collaborative) web applications


Building an Application

Runtime

Traditional way


Building an Application

Runtime Runtime

XWiki way - Morphing!


Developing on XWiki
a.k.a Morphing XWiki



Extensions



Adding Structure

• Ability to associate arbitrary
data to any wiki page
• Enable structure in the wiki
• Enable Application development
• == Application wiki or Next Gen Wiki
• Application Within Minutes


Classes - Objects



Class Sheets

• A Document with script to display the
content of Object(s) nicely
• Automatic usage if deﬁned in Class
Document
• Can be overridden on a page basis if needed



Skinning & Theming



Skin Extensions
CSS JS

== Grease Monkey Copyright (c) Vincent Massol - 2012


Scripting in Pages (1/2)
{{groovy}}
import groovy.json.*

def url = "https://api.github.com/users/xwiki/repos".toURL().text
def root = new JsonSlurper().parseText(url)

println "|=Project|=Description|=Use Wiki?|=Use Issues?"
root.each() { repo ->
println "|[[${repo.name}>>http://github.com/xwiki/$
{repo.name}]]|${repo.description}|${repo.has_wiki}|$
{repo.has_issues}"
}
{{/groovy}}



Scripting in Pages (2/2)
{{velocity}}
#set ($xwql = "where doc.content like '%welcome%'")
#foreach ($item in $services.query.xwql($xwql).execute())
#if ($request.confirm == "1")
#set ($itemDoc = $xwiki.getDocument($item))
$itemDoc.setContent($itemDoc.getContent().replaceAll(
"welcome", "bienvenue"))
$itemDoc.save("Replaced bienvenue")
* [[$item>>$item]] replaced!
#else
* [[$item>>$item]]
#end
#end

[[Replace "welcome" by "bienvenue">>?confirm=1]]
{{/velocity}}



UI Extensions
Result
Extension Point
{{velocity}}
...
#foreach($uix in $services.uix.getExtensions(
'org.xwiki.platform.panels.Applications'))
#set($params = $uix.getParameters())
* [[image:$params.icon $params.label>>$params.target]]
#end
...
{{/velocity}}

Extension



Wiki Macros



Components
@Role
public interface Macro
{
    List<Block> execute();
}

@Component
@Named("message")
@Singleton
public class MessageMacro implements Macro
{
   @Inject
   private Execution execution;

   @Inject
   @Named("box")
   private Macro boxMacro;

   public List<Block> execute()
   {
      ...
   }
}

META-INF/components.txt
org.xwiki.rendering.internal.macro.message.MessageMacro

+ Wiki Components!


Usages



Multiple Usages



http://www.xwiki.org/xwiki/bin/view/Main/Screenshots


Long tail of Apps
Excel of the
Web

Web’s Swiss
army knife



Pros and Cons



Pros
• Iterative, Need-based development
• Continuous Delivery
• Work collaboratively on creating applications
• Designers can style while devs create logic
• Works from day one, immediate feedbacks
• Open source and community-based


Cons
• Save code in SCM
• ... but SVN Application, Git Application
• Low integration with existing dev tools
• ... but XEclipse
• ... but WebDAV
• Not an ofﬁcial standard


Getting Started
• Download XWiki from xwiki.org
• Ask for a wiki on myxwiki.org
• Non-proﬁt orgs and individuals, no SLA
• Used as a test platform by XWiki devs
• XWiki Cloud
• Free plan (5 users), paid plans
• Contact a company supporting XWiki


Q&A

Me


Vincent Massol
vincent@xwiki.com
skype: vmassol
http://about.me/vmassol

http://xwiki.org
http://xwiki.com



XWiki: Developing simple apps quickly

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