The Apache Cocoon Project

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(No Transcript)
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The Apache Cocoon Project

• The Apache Cocoon Project is the open source
  community project developing Apache Cocoon and
  Cocoon-based application frameworks.
• The Apache Cocoon project currently consists of
  Apache Cocoon itself and the Lenya CMS

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What Is Cocoon

• Web development framework built around the
  concepts of separation of concerns and
  component-based web development.
• Mix and match java components in a pipeline
• interacts with many data sources, including
  filesystems, RDBMS, LDAP, native XML databases,
  SAP systems and network-based data sources.
• It adapts content delivery to the capabilities of
  different devices like HTML, WML, PDF, SVG, and
  RTF, to name just a few

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Separation of content, style, logic and
management functions
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Data Mapping
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Basic Mechanisms
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Pipeline Example XML to html

• ltmappipelinegt
• ltmapmatch pattern"lodges/."gt
• ltmapgenerate src"lodges/1.xml"/gt
• ltmaptransform src"styles/Lxml2htm.xslt"/gt
• ltmapserialize type"xhtml"/gt
• lt/mapmatchgt
• lt/mappipelinegt
• http//www.wl-dev.co.uk/lodges/7990.xml
  http//www.wl-dev.co.uk/lodges/7990.htm
  http//www.wl-dev.co.uk/lodges/7990.html

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Pipeline Example XML to PDF

• ltmapmatch pattern"lodges/.pdf"gt
• ltmapgenerate src"lodges/1.xml"/gt
• ltmaptransform src"styles/2fo.xsl"/gt
• ltmapserialize type"fo2pdf"/gt
• lt/mapmatchgt
• ltmapmatch pattern/.jpg"gt
• ltmapread mime-type"images/jpg
  src1/2.jpg"/gt
• lt/mapmatchgt

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Search Engine ExampleBuild Index

• Uses Apache Lucene - high-performance,
  full-featured text search engine library written
  entirely in Java
• ltmapmatch pattern"buildIndex"gt
• ltmapgenerate src"lucene/doc-files.xsp"
  type"serverpages"/gt
• ltmaptransform src"lucene/stylesheets/files2con
  tent.xsl"/gt
• ltmaptransform type"cinclude"/gt
• ltmaptransform src"lucene/stylesheets/content2l
  ucene.xsl"/gt
• ltmaptransform type"index"/gt
• ltmaptransform src"lucene/stylesheets/lucene2ht
  ml.xsl"/gt
• ltmapserialize/gt
• lt/mapmatchgt

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Search Engine ExampleSearch Index

• ltmapmatch pattern"search.htm"gt
• ltmapgenerate type"search"gt
• ltmapparameter name"index" value"index2"/gt
• lt/mapgenerategt
• ltmaptransform type"log"/gt
• ltmaptransform src"lucene/seachxml2htm.xsl"/gt
• ltmapserialize/gt
• lt/mapmatchgt

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• Java
• Error handling
• Control Flow
• continuations
• CForms (XForms)
• Cache
• Internationalization
• Sendmail Action
• database read write to
• relational database
• Native XML databases

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• function main()
• var random Math.round( Math.random() 9 )
  1
• var hint "No hint for you!"
• var guesses 0
• while (true)
• cocoon.sendPageAndWait("guess.jxt", "random"
  random, "hint" hint,
• "guesses" guesses )
• var guess parseInt( cocoon.request.get("g
  uess") )
• guesses
• if (guess)
• if (guess gt random)
• hint "Nope, lower!"
• else if (guess lt random)
• hint "Nope, higher!"
• else
• break

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Lenya CMS

• Cocoon Based
• Open Source Java/XML Content Management System
• WYSIWYG editors, BXE and Kupu
• Workflow
• Internationalization
• revision control
• site management
• Scheduling
• Search, Lucene

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Links

• http//cocoon.apache.org/2.1/
• http//lucene.apache.org/
• http//lenya.apache.org/

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• Authoring
• Browser-based WYSIWYG Editors - Relax NG
  Schema.
• Pages that are being edited are automatically
  locked for other users
• Each edit of a page creates a new revision. It is
  possible to revert to any previous revision of a
  page.
• Workflow
• A customizable workflow engine that uses an easy
  XML format to define workflows. Standard one- and
  two-stage workflows are included. Users can be
  notified by email about pending approvals.
• Workflow events such as publishing or
  deactivating a page can be scheduled.
• Supports separate authoring, staging and live
  areas. For convenience, the staging area is
  disabled by default.
• All workflow steps are logged, providing an audit
  trail.
• Internationalization
• Pages can be created in multiple languages with
  no impact on your site structure. Lenya
  automatically displays your page in the default
  languge if it is not available in a specific
  language.
• The user interface is currently localized in
  spanish, italian, french, german, english, dutch
  and japanese.
• Layout
• The publications concept allows reuse of the
  information architecture of a site and brings
  modularity to the content level. Different
  publications can share content and business
  logic, and new publications can be created with a
  cloning process.
• Supports XHTMLCSS templating, eliminating the
  need to learn yet another templating language.
  Wherever possible, uses CSS for styling,
  therefore enforcing the separation of content and
  layout.
• The navigation framework automatically creates
  navigation items such as menus, breadcrumb paths
  and tabs. A sitemap can be easily created.
• Produces clean URLs without request parameters
  and is thus optimally accessible for search
  engines.
• There are no restrictions on the nesting of
  templates. You can use any template you have
  defined at any level of your site structure
  thanks to the URI parametrizer.
• Site Management