Open Source CMS, MDD, TDD: Pros and Cons Eclipse Texo, Seam, Alfresco, XForms,

Open Source CMS, MDD, TDD:
Pros and Cons
Eclipse Texo, Seam,
Alfresco, XForms,
Assembla
Real world project highlights
Дмитрий Горячко
Eclipse
Texo
Project
независимый J2EE консультант, основатель команды JazzTeam,
Eclipse committer
17.10.2010
JazzTeam.org Springsite.com Eclipse Foundation
00 Введение
• О чём я расскажу
–
–
–
–
–
–
Eclipse
Tex
o
Project
2/42
Commercial outsourcing + open source
Коротко об enterprise Java CMSs
Презентация Texo Eclipse project
Alfresco introduction and tips
Open Source customization
Project highlights
• Постараюсь, чтобы рассказ был не
сухим и был интересным не только для
java разработчиков
JazzTeam.org Springsite.com Eclipse Foundation
Yageo.com
Eclipse
Tex
o
Project
3/42
• Самый крупный
производитель
деталей для
электроники
• Исторически сайт
создавался
компанией
springsite.com
• Web 2.0 фаза
JazzTeam.org Springsite.com Eclipse Foundation
Yageo.com
Eclipse
Tex
o
Project
4/42
JazzTeam.org Springsite.com Eclipse Foundation
Eclipse
Tex
o
Project
5/42
JazzTeam.org Springsite.com Eclipse Foundation
Как появился заказчик
• Всегда вкладывай в людей, с которыми
работаешь
– Получена рекомендация
• У думающих людей не бывает плохого
опыта
– Экспертиза fits requirements (Epam CMS)
• Мой вопрос к Аркадию Добкину и его ответ про
продуктовые и аутсорсинговые компании
Eclipse
Tex
o
Project
6/42
• Мысль материальна
– Заказчик из мира Open Source
JazzTeam.org Springsite.com Eclipse Foundation
Задачи
Eclipse
Tex
o
Project
7/42
• Integrate enterprise CMS
• Contact management
• Complicated search among all the
products (including competitors)
• E-news, subscribers management
• Products management (batch update too)
• Web statistics
• Support all possible roles, flows (editor,
admin, technical admin)
• All should be friendly-administrated
JazzTeam.org Springsite.com Eclipse Foundation
Let us scrum
Eclipse
Tex
o
Project
8/42
киевское метро
JazzTeam.org Springsite.com Eclipse Foundation
Особенности организации
проекта
Eclipse
Tex
o
Project
9/42
JazzTeam.org Springsite.com Eclipse Foundation
Особенности организации
проекта
• Distributed scrum team
• Customer is Open Source contributor
– Open for architecture changes
– No fear, motivated to new
– Not formal, friendly attitude
• Доверяйте интуиции
Eclipse
Tex
o
Project
10/42
– Первая оплата через 2 месяца после
начала проекта
– Проект на 2 года с большой плотностью
инноваций весь срок
JazzTeam.org Springsite.com Eclipse Foundation
Why not to use Mind Maps for
project documentation
Eclipse
Tex
o
Project
11/42
JazzTeam.org Springsite.com Eclipse Foundation
Why not to use Mind Maps for
project documentation
Eclipse
Tex
o
Project
12/42
JazzTeam.org Springsite.com Eclipse Foundation
Open for architecture changes
• Feel free to customize if need
(coding)
Eclipse
Tex
o
Project
13/42
– Seam
– Alfresco
– Chiba (OS W3C XForms
implementation)
– Hibernate
– Eclipse Texo
• New phase of development (project Teneo)
JazzTeam.org Springsite.com Eclipse Foundation
No fear, motivated to new
• We need apply recursion into XForms
and implement/built in recursive AJAX UI
– let us invest time/money into it and gain
knowledge on this area deeper
– Конечно, позволял заказчик
– 2 человека-месяца (с высокой
квалификацией)
Eclipse
Tex
o
Project
14/42
• Alfresco server debug
• Complicated UI (hundreds of recursive controls,
which are widgets itself)
JazzTeam.org Springsite.com Eclipse Foundation
Recursive XSD widgets (xs:switch)
AJAX based
Eclipse
Tex
o
Project
15/42
JazzTeam.org Springsite.com Eclipse Foundation
Recursive XSD widgets (xs:switch)
AJAX based
Eclipse
Tex
o
Project
16/42
JazzTeam.org Springsite.com Eclipse Foundation
Recursive XSD widgets (xs:switch)
AJAX based
Eclipse
Tex
o
Project
17/42
Jazz Koktebel
JazzTeam.org Springsite.com Eclipse Foundation
Deployment
Eclipse
Tex
o
Project
18/42
JazzTeam.org Springsite.com Eclipse Foundation
01 Технологии
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Alfresco & ECMSs
Texo
Seam
MDD & TDD
Eclipse
Tex
o
Project
19/42
JazzTeam.org Springsite.com Eclipse Foundation
Alfresco notes
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•
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State of art. Wanna grow in Java
– study sources of Alfresco or
Seam
Modularity
All is node and services around
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–
Not only document management
Everything related to node could
be implemented
•
•
Flows, Web Forms and many
other things
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•
Eclipse
Tex
o
Project
20/42
•
•
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Node type
extendable
XSD + XSLT (other templating
language) = XML, HTML, JS,
Java, JSF – anything
Web scripting
The same model as Epam CMS
It is possible to have XSD
describing layout
Крым, Симферополь,
Детский джазовый концерт
JazzTeam.org Springsite.com Eclipse Foundation
Texo Eclipse project presentation
Eclipse
Tex
o
Project
21/42
By springsite.com
JazzTeam.org Springsite.com Eclipse Foundation
Texo Eclipse project presentation
ORM JPA
Hibernate
Eclipse link
XSD
XML
EMF ECore
Java
In memory
Eclipse
Tex
o
Project
22/42
Your own format
TDD
JSON/Rest
GWT UI part
Web Services
Planned
Under development by me
JazzTeam.org Springsite.com Eclipse Foundation
Seam
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Eclipse
Tex
o
Project
23/42
JSF
Creator of Hibernate
Contexts
Interceptors without AoP
Built in IoC
Rather new community
Sometimes it is hard to debug and
investigate what is wrong
• Good community
• State of art (contexts)
JazzTeam.org Springsite.com Eclipse Foundation
Seam
•
Eclipse
Tex
o
Project
24/42
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="
http://jboss.com/products/seam/components
http://jboss.com/products/seam/components-2.1.xsd
http://jboss.com/products/seam/core
http://jboss.com/products/seam/core-2.1.xsd
http://jboss.com/products/seam/persistence
http://jboss.com/products/seam/persistence-2.1.xsd
http://jboss.com/products/seam/transaction
http://jboss.com/products/seam/transaction-2.1.xsd
http://jboss.com/products/seam/security
http://jboss.com/products/seam/security-2.1.xsd
http://jboss.com/products/seam/international
http://jboss.com/products/seam/international-2.1.xsd
http://jboss.com/products/seam/mail
http://jboss.com/products/seam/mail-2.1.xsd
http://jboss.com/products/seam/async
http://jboss.com/products/seam/async-2.1.xsd">
JazzTeam.org Springsite.com Eclipse Foundation
Seam
Eclipse
Tex
o
Project
25/42
• <core:manager conversation-timeout="120000"
concurrent-request-timeout="500"
conversation-id-parameter="cid" />
• <transaction:entity-transaction entitymanager="#{em}" />
• <persistence:entity-manager-factory
name="yageo" />
• <persistence:managed-persistence-context
name="em"
auto-create="true"
entity-manager-factory="#{yageo}" />
• <core:init transaction-managementenabled="false" />
JazzTeam.org Springsite.com Eclipse Foundation
XForms & chiba
Eclipse
Tex
o
Project
26/42
• Server and client
model
• XML
• XSD description of
structured form (even
recursive – if your
framework supports it
)
• http://en.wikipedia.or
g/wiki/XForms
• Not only for internet
• Could be MVC
From http://www.w3.org/MarkUp/Forms/
JazzTeam.org Springsite.com Eclipse Foundation
XForms & chiba
•
<xs:complexType abstract="true" name="PublicationType"><xs:sequence>
<xs:element name="Title" type="xs:string"/>
<xs:element maxOccurs="unbounded" minOccurs="0" name="Author" type="xs:string"/>
</xs:sequence>
</xs:complexType>
•
<xf:instance id="instance_0">
<yageo:Catalogue xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:yageo="http://www.yageocom/cms/article">
<yageo:Publication xsi:nil="true" xsi:type="BookType">
<yageo:Title/>
<yageo:Author alf:prototype="true"/>
<yageo:ISBN/>
<yageo:Publisher/>
</yageo:Publication>
</yageo:Catalogue>
</xf:instance>
•
<xf:bind id="bind_0" xf:maxOccurs="1" xf:minOccurs="1" xf:nodeset="/yageo:Catalogue" xf:readonly="false()"
xf:required="false()">
•
<xf:group id="alfresco-xforms-root-group" xf:appearance="full">
<xf:label id="label_0">Catalogue</xf:label>
•
Eclipse
Tex
o
Project
27/42
<xf:group id="group_1" xf:appearance="repeated">
<xf:trigger id="repeat_1-delete" xf:bind="bind_5">
<xf:label id="label_25">delete selected</xf:label>
<xf:action id="C56">
<xf:delete id="delete_1" xf:at="xf:index('repeat_1')"
xf:nodeset="/yageo:Catalogue/yageo:Publication
[index('repeat_0')]/yageo:Author"/>
JazzTeam.org Springsite.com Eclipse Foundation
02 a little bit jump into project
Eclipse
Tex
o
Project
28/42
В Крыму
JazzTeam.org Springsite.com Eclipse Foundation
Layouts flow
Restart
publish
etc
Html design
divs
ECore
User
Templates
Xslt/freemarket
XSD
Layout
content block
Alfresco
web forms
xml
Required Java
Eclipse
Tex
o
Project
29/42
Texo
ResourceBundle,
Configs,
Even web.xml
JazzTeam.org Springsite.com Eclipse Foundation
Seam JSF
Layouts flow
• Content block позволяют
рассматривать новый функционал
как UI плагины (виджеты).
Автоматически поддержка CMS.
Eclipse
Tex
o
Project
30/42
JazzTeam.org Springsite.com Eclipse Foundation
Project data exchange
Eclipse
Tex
o
Project
31/42
JazzTeam.org Springsite.com Eclipse Foundation
Open Source contribution results
• Eclipse Teneo (only ORM) > Texo
– One more Eclipse member
• Chiba changes contribution
• Tries to discuss XForms standard changes
• Seam forum participating
– Issue with contexts
• Alfresco changes
– Dramatic
• WCM AJAX, layout to manage renditions, others
Eclipse
Tex
o
Project
32/42
– A wish to become commercial committer
– Contribution is sent but particularly ignored
JazzTeam.org Springsite.com Eclipse Foundation
Типы кастомизаций
• IoC, reflexion через файлы настроек
• Скачать сырцы, что-то изменить,
переподложить под сервер
• Сырцов нету
(multivalent.sourceforge.net). Decompile,
adjust, compile
Eclipse
Tex
o
Project
33/42
• Два последних варинта рискованны,
если продукт будет долго развиваться.
JazzTeam.org Springsite.com Eclipse Foundation
Open Source model of project
• vertical model - OOP > reusable
components > frameworks > open
source > usage at next projects
• Motivation
• Convenient way to touch with
partners
Eclipse
Tex
o
Project
34/42
– Ask them to join your OS project and
see what happens
• All that is done for free in minutes, and
results in a week (productivity etc)
JazzTeam.org Springsite.com Eclipse Foundation
Open Source cons (то, что
всплыло на проекте)
Eclipse
Tex
o
Project
35/42
• Weak communities
• Not always user
centric development
• Смешение
технологий – for
handy people
• Нет успокоения (но
и нет старпёрства)
• Customizations,
customizations,
customizations
• Effort on R&D
Из интерьера знаменитой
49 квартиры
JazzTeam.org Springsite.com Eclipse Foundation
Money?
•
•
•
•
•
•
•
Become committer with potential
customer
Long investments
Create popular industry/direction
(что сейчас делается в
проекте Texo)
Конференции, где бывают
заказчики мира Java Open
Source
Independent consulting
Name
A way to start cooperation with
people immediately
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–
Eclipse
Tex
o
Project
36/42
For eclipse – not one month of
contribution
For sourceforge etc.
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•
•
Create user
Add to project
Develop Use Case
Способный customer facer
Могу дать телефон
JazzTeam.org Springsite.com Eclipse Foundation
CMS
• Good to have XSD support
– And recursion
Eclipse
Tex
o
Project
37/42
• Good to become an entry point for all the
management/admin pages
• Good to be node specific
• Good to have web scripting
• finally flows
• And convenient management of renditions
• E-CMS integration should allow to do (web.xml,
configs, bundles, localization) in the way you use
wordpress
JazzTeam.org Springsite.com Eclipse Foundation
Bonus 00: j2ee vs ruby (basing on
mashpit trainings)
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Eclipse
Tex
o
Project
38/42
•
•
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Context handling
Много времени для
вхождения новичкам
Хостинг дешевеет, clouding
Java is up to have closures
Byte code manipulators
Aop, IoC, OSGI
Simple syntax
Proved technology
MVC frameworks: spring,
struts, seam. Tons of views,
TDD
ORM and JPA
Ant, Maven
Good to have compilation
errors
Стенсил во Львове
JazzTeam.org Springsite.com Eclipse Foundation
Bonus 01: расширяемое
программирование in Java
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Eclipse
Tex
o
Project
39/42
•
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Пляшем от полиморфизма
Generics
IoC(spring, self-made, seam, web.xml, context.xml)
Dependency injection (interceptors, chains), AoP (joints)
Patterns
Plugins (self made, OSGI, etc.)
WS-* (service mix, equinox, wsdl, JSON, REST)
Bytes manipulation (create classes on the flight,
interception on the flight – hard to debug)
Polymorphic systems (ruby frontend – java backend)
Class loading art
UI: widgets, web scripting
MDD, TDD, CMS took important role
Built in scripting
JazzTeam.org Springsite.com Eclipse Foundation
Выше показан один из возможных
вариантов развития проекта и
команды. Нет единого рецепта.
Open Source company?
Product based company?
Outsourcing?
Trainings?
I do not know 
Eclipse
Tex
o
Project
40/42
Балкончик без лесенки
JazzTeam.org Springsite.com Eclipse Foundation
Спасибо! Надеюсь, было
интересно и полезно!
Вопросы?
Eclipse
Tex
o
Project
41/42
Презентацию можно найти здесь
jazzteam.org/devcamp10
• Zmicer.harachka@gmail.com
• Zmicer.com
JazzTeam.org Springsite.com Eclipse Foundation
Opportunities
• Вы желаете обучаться или работать на java
• Участвовать в Open Source
• Вам нравятся небольшие Scrum команды
• Вы думаете об удалённой работе
• Хотелось бы поработать за границей, но не
знаете как
• Тренинг повышения эффективности Java
программиста Java Brains Reloading
Eclipse
Tex
o
Project
42/42
Давайте пообщаемся после презентации!
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