主要介绍了在构建企业软件基础平台的过程中对组件化和动态化技术的开发实践，包括大型项目的组件化开发过程、构建过程和装配机制等，主要涉及的技术包括XDoclet、Plug-in机制、WTP的facets机制等，同时还介绍了OSGiR4.2的企业级高级特性及其相关应用。

1. --@sagacity
- -IT
www.ufida.com
www.rayootech.com

2. ‣
‣
‣ WTP Facet XDoclet ANT
‣ OSGi——
‣ Java Bundle

4. “ ”
“
”

8. OSGi

9. ‣ ‣
‣ ‣
‣ ‣
‣ ‣
‣ ‣
‣ ‣
‣ ‣

10. Metadata
Workflow
‣ ‣ RuleEngine
‣ ‣
‣ ‣
‣ ‣
‣ ‣
‣ ‣
‣ ‣
Component Building

11. ‣
‣
‣
‣ ——200
‣
‣
‣
‣ ——

12. ...
ERP
Flex
AJAX
Main FrameWork

13. ...
ERP
Flex
AJAX
Main FrameWork

14. ...
ERP
Here you are!
Flex
AJAX
Main FrameWork

15. ...
Flex AJAX
ERP
GAP-API
Main FrameWork

16. ‣ Eclipse WTP Facets
‣ XDoclet
‣ Ant
‣ OSGi
‣
‣ Servlet
‣

17. Eclipse WTP Facets
‣
‣ WTP Web Tools Platform
‣ WTP
‣
‣ Facets
‣ Facets

18. WTP Faceted
id versions requires conflicts
jst.java 1.3, 1.4, 1.5, 1.6 jst.ear
jst.web 2.2, 2.3, 2.4 jst.java jst.ear, jst.ejb
jst.ear 1.2, 1.3, 1.4, 5.0, 6.0 jst.java
jst.ejb 1.1, 2.0, 2.1, 3.0, 3.1 jst.java jst.ear, jst.java

19. WTP Faceted
id versions requires conflicts
jst.java 1.3, 1.4, 1.5, 1.6 jst.ear
jst.web 2.2, 2.3, 2.4 jst.java jst.ear, jst.ejb
jst.ear 1.2, 1.3, 1.4, 5.0, 6.0 jst.java
jst.ejb 1.1, 2.0, 2.1, 3.0, 3.1 jst.java jst.ear, jst.java

20. Dynamic Web Project

21. Dynamic Web Project
Facets

22. XDoclet & Ant
‣ XDoclet
‣ Merge Point
‣ Ant
‣
‣
‣ Facets Ant XDoclet

23. ‣ build.xml
‣ -MergePoint i18n oid spring include
‣ TotalBuild
‣ Facet

25. TotalBuild

26. TotalBuild

27. TotalBuild
Facets

28. ‣
‣ build.xml clean compile jar distribution
db
merge
resource
‣ ant src
webModule
‣ Distribution

29. Merge
‣ xdt
‣ applicationContext.xdt------------spring
‣ global.xdt---------------------------include global.jsp
‣ web.xdt-----------------------------web.xml
‣ ......
‣ Merge Point
<XDtMerge:merge file="workflow-hbm.data"></XDtMerge:merge>

30. Merge
<value>gap/wf/persistent/db/bo/GapwfProcessinstance.hbm.xml</value>
<value>gap/wf/persistent/db/bo/GapwfActivityinstance.hbm.xml</value>
<value>gap/wf/persistent/db/bo/GapwfActivityinstancepre.hbm.xml</value>
<value>gap/wf/persistent/db/bo/GapwfRevelantdata.hbm.xml</value>
<value>gap/wf/persistent/db/bo/GapwfWorkitem.hbm.xml</value>
<value>gap/wf/persistent/db/bo/GapwfWorkitemdata.hbm.xml</value>
<value>gap/wf/persistent/db/bo/GapwfDynprocessrelation.hbm.xml</value>
db
merge
resource
src
webModule

31. XDoclet <path id="xdoclet.classpath">
<fileset dir="${lib.dir}">
<include name="*.jar"/>
‣ XDoclet classpath </fileset>
<pathelement location="classes"/>
</path>
‣ Ant taskdef
‣ target <taskdef name="xdoclet" classname="xdoclet.DocletTask"
classpathref="xdoclet.classpath" />
<target name="gen-applicationContext.xml">
<xdoclet destdir="${webmodule.dir}/WEB-INF/conf/applicationContext" force='true' mergedir="${merge.dir}">
<fileset dir="${source.dir}" includes="**/*.java" />
<template templateFile="template/applicationContext.xdt" destinationfile="applicationContext.xml" />
</xdoclet>
</target>

32. TotalBuild
‣ Facets
<!-- build.xml-->
<target name="build">
<ant dir="${gap-api}" antfile="build.xml" target="all" />
<ant dir="${venus-frame}" antfile="build.xml" target="all" />
<ant dir="${venus-page}" antfile="build.xml" target="all" />
<ant dir="${venus-log}" antfile="build.xml" target="all" />
......
</target>
<!-- -->
<target name="plugin">
<available file="Templates" type="dir" property="Templates.present" />
<antcall target="clean" />
<move todir="Templates/0. ">
<fileset dir="${gap-api}/dist" />
<fileset dir="${venus-frame}/dist" />
</move>
......
</target>

33. Facet
‣ org.eclipse.ui.newWizards
‣ category wizard

34. ‣ org.eclipse.wst.common.project.facet.core.facets
‣ <category />——Facet
‣ <project-facet />——Facet
‣ <project-facet-version />——Facet
‣ <template />—— Facet
‣ <preset />—— Facet
——
‣ org.eclipse.wst.common.project.facet.ui.images
‣ org.eclipse.wst.common.project.facet.ui.wizard

35. Facet
<!--Facet -->
<project-facet id="gap.mainframe">
<label>0. </label>
<description>GAP </description>
<category>gap.category</category>
</project-facet>
<!-- Facet -->
<project-facet-version facet="gap.mainframe" version="3.7">
<action id="gap.mainframe.install" type="INSTALL">
<delegate class="venus.tools.ide.facet.GAPFacetInstallDelegate"/>
</action>
<constraint>
<requires facet="jst.web" version="[2.4"/>
</constraint>
</project-facet-version>

36. Facet
‣ org.eclipse.wst.common.project.facet.core.IDelegate
‣ GAPFacetInstallDelegate Facet
‣ BuildFacetsDelegate
‣ Facet Facet
‣ Facet
‣ XDoclet classpath
‣ project nature .tomcatplugin
‣

37. ‣
‣
‣
‣
‣

38. ‣
‣ jar
‣ Install Update Remove
‣ Time For:

39. ‣
‣ jar
‣ Time For:Update
Install Remove
‣ Time For:
O Gi

40. OSGi
‣
‣ 2005 R4.0 ——
‣ 2010 3 OSGi 4.2
‣ Bundle

41. update
install refresh
INSTALLED STARTING
resolve update
start
refresh
RESOLVED ACTIVE stop
uninstall uninstall stop
UNINSTALLED STOPPING

42. OSGi
‣ Declarative Services
‣ Framework Launching
‣ Blueprint Blueprint Service
‣ Web Web Application Bundle
‣ JPA JTA JDBC......

43. OSGi
‣ Declarative Services
‣ Framework Launching
‣ Blueprint Blueprint Service
‣ Web Web Application Bundle
‣ JPA JTA JDBC......

44. ‣ Service Component Model
‣ OSGi
‣ xml Component Service
‣
‣ Java POJO OSGi
‣

45. ——
‣ Bundle Manifest
Bundle-ManifestVersion: 2
...
Service-Component: OSGI-INF/component.xml [, ...]*
‣ OSGI-INF/
<?xml version="1.0" encoding="UTF-8"?>
<scr:component name="bookstore-order" xmlns:scr="http://www.osgi.org/xmlns/scr/v1.1.0">
<!-- -->
<implementation class="com.osgi.ds.OrderService"/>
<!-- -->
<service><provide interface="com.osgi.ds.IOrder"/></service>
<!-- -->
<reference interface="com.osgi.ds.ICart" bind="setCart" unbind="unsetCart"
policy="dynamic" cardinality="1..1"/>
</scr:component>

46. ——
‣ Enabled——
‣ Satisfied——
‣ Immediate Component——
‣ Delayed Component——
‣ Factory Component——

47. <=>%42.*%0$1-.*$0%*+$%#(45("$"*%#(")-120&*-("%&.%&%.$09-#$%-"%*+$%.$09-#$%0$1-.*0'%&
*+$%#(45("$"*%#(")-120&*-("7%?+$%.$09-#$%50(5$0*-$.%)(0%*+-.%0$1-.*0&*-("%#(".-.*%()
50(5$0*-$.%&.%/$)-"$/%-"%+), - & .)/0,12), %&)#%("%5&1$ @AB7
?+$%.*&*$%/-&10&4%-.%.+(:"%-"%C-120$%@@D7D7%
—— 3 & 4 ! , ) / 556 7 6 8 9 9 )* & $ % ) / : 1 9 21 " ) " % / : 1 " ( & 4 ! , $ % & 1 "
)(+=,*>+,(
6789:&8;&<3
‣ Enabled—— B&)/0&2
2,-$2.$&C B&)/0&2
D62,-$2.$&C
‣ Satisfied—— +=,*>+,( $.%CA6,0$)E
9.:&?<
!"#$"%&%'()*+&(!,-.&( /&-.010'*2&(3&12*-&4(3$&-*+*-0'*"%(5&
'&B$6C$69
‣ Immediate Component—— !"#$%&#'&()*+&#(&,*'$&(&-#./#0#+12314&4$#+14"*,5(0$*14#.&+12&'#545'&-#.&+05'&#$%&(&#0(&#4
.54-6&'#5'*4,#*$7#$%&4#89:#'%156-#-&0+$*)0$&#$%0$#+12314&4$#+14"*,5(0$*14;#<%*'#0661='#89
!!"#$#2 3(4+5()-./'0/1(1,-
2&4$0$*14'#$1#&0,&(6/#(&+60*2#0+$*)0$&-#+12314&4$#+14"*,5(0$*14';
8%E$'%&**0-62*$%()%&%/$,&'$/%#(45("$"*%-.%*+$%/$,&'-"1%()%#,&..%,(&/-"1%&"/%(6F$#*%#0
‣ Delayed Component——
!"#$%&'(()*+ *+$%&#*-9&*-("%()%&%/$,&'$/%#(45("$"*%#(")-120&*-("%/($.%"(*%(##20%2"*-,%*+$0$%-.%&
,&-./&0'123425&56'1257"#$%.6"25
)(0%&%.$09-#$%(6F$#*7%8%#(45("$"*%-.%&%/$,&'$/%#(45("$"*%:+$"%-*%.5$#-)-$.%&%.$09-#$
*(0'%#(45("$"*%&"/%/($.%"(*%+&9$%*+$%!""#$!%&#%&**0-62*$%()%*+$%'(")(*#*&%$,$4
<1&'(:;&(1
2345674%789
‣ Factory Component—— <=>%42.*%0$1-.*$0%&%.$09-#$%&)*$0%*+$%#(45("$"*%#(")-120&*-("%6$#(4$.%.&*-.)-$/7%?
*+-.%.$09-#$%42.*%,((E%*(%(6.$09$0.%()%*+$%.$09-#$%0$1-.*0'%&.%-)%*+$%#(45("$"*I.%62"
B&-"#&4 B&-"#&4
*$0$/%*+-.%.$09-#$7%?+-.%.*0&*$1'%4&E$.%-*%5(..-6,$%*(%0$1-.*$0%.$09-#$.%:-*+(2*%#0$&*-"
D%40'*4+*&C 40'*4+*&C
)(0%*+$%62"/,$%&"/%,(&/-"1%#,&..$.3%*+$0$6'%&,,(:-"1%0$/2#*-("%-"%-"-*-&,-J&*-("%*-4
4$4(0'%)((*50-"*7
>8?7468>89 D%9&' B&-"#&4
4&12*-& D%40'*4+*&C
K+$"%<=>%0$1-.*$0.%*+$%.$09-#$%("%6$+&,)%()%&%#(45("$"*%#(")-120&*-("3%-*%42.*%&9(
6
9&'
4&12*-&+0-'"1,E(F77%
,(&/%*(%(##20%)0(4%*+$%#(45("$"*L.%62"/,$7%<=>%#&"%$".20$%*+-.%6'%0$1-.*$0-"1%&%-#
4&12*-&
"'G&1H*4&E(6
(6F$#*%:-*+%*+$%C0&4$:(0E%)(0%*+&*%.$09-#$7%M'%0$1-.*$0-"1%&%-#+.!'#/%'&(+0%(6F$#*3%*
&'(:;&(1
(6F$#*%-.%"(*%"$$/$/%2"*-,%*+$%-#+.!'#/%'&(+0%-.%#&,,$/%*(%50(9-/$%*+$%.$09-#$%(6F$#*7%
*+(C,%0#*-E
5-67=8
$0*-$.%)(0%*+-.%0$1-.*0&*-("%#(".-.*%()%*+$%#(45("$"*%50(5$0*-$.%&.%/$)-"$/%-"%+), - & .)/
1&B*%C*%9
@AB7

48. ‣ R4.2 API OSGi
‣ OSGi ——org.osgi.framework.launch.FrameworkFactory
‣ OSGi web listener OSGi
‣
Class<FrameworkFactory> factoryClass = ServiceLoader.load(FrameworkFactory.class);
FrameworkFactory factory = factoryClass.newInstance();
Map<Object, Object> conf;
......//
Framework framework=factory.newFramework(conf);
framework.init();
BundleContext bundleContext = framework.getBundleContext();
......// bundle
framework.start();

49. BluePrint
‣ BluePrint ——Spring Dynamic Modules-->Eclipse Gemini
‣ OSGi dependency injection
‣ OSGi
‣ POJO
‣ OSGI-INF/blueprint/
<?xml version="1.0" encoding="UTF-8"?>
<blueprint xmlns="http://www.osgi.org/xmlns/blueprint/v1.0.0">
...
</blueprint>

50. 3&45"$,67689 :$0;,(%"5)%5"$
5&'(
BluePrint ——Bean
‣ Java 9
‣
',+7/&(1 0,.0&,18
‣ argument, property, scope
‣ className, factoryMethod, factoryComponent
!"!#$#" 45&'(6
!"#$G#%&2&%&$3.'$&$7#&-$/&-&(#'$+,$'#*'#,#-%#2$+-$%"#$$/&.#0&'.1.'.$+-%#'3&
<bean id="order" class="com.osgi.bs.OrderService" init-method="init"
destroy-method="destroy"> 2(3)(#&#'0&'.1.'.<$!&70# CBC<C$.-$*&(# BCI$*'.5+2#,$&-$.5#'5+#9$.3$%"#$'#
<argument value="1"/>
<argument value="2"/>
&-2$%"#$/&.#0&'.1.'.$+-%#'3&6#<$!"#$%&70#$.-0)$*'.5+2#,$&$,1//&')4$%"#$,./
%+.-,$7#%9##-$%"#$2+33#'#-%$3#&%1'#,$&'#$2+,61,,#2$+-$0&%#'$,#6%+.-,<
<property name="Description" value="This is the order"/>
</bean> <01/$,67686 :$0;,=0;04$",3$0%5"$'
:11,;571&).,)<=&/&(1 >8(1'? %&'()*&1'@'1' A&BC,;01;.(
"1 45 "16 !"#$+2$.3$&$%.*$0

51. BluePrint ——
<!-- -->
<service id="orderService" interface="com.osgi.bs.IOrderService" ref="order">
<service-properties>
<entry key="order.discount" value="0.8"/>
</service-properties>
</service>
<!-- -->
OrderService os = new OrderService(1, 2);
os.setDescription( "This is the order" );
Hashtable props = new Hashtable();
props.put("order.discount", "0.8");
bundleContext.registerService(com.osgi.bs.OrderService.class.getName(), os,
props);

52. BluePrint ——
<!--reference -->
<reference id="orderRef" interface="com.osgi.bs.IOrderService" timeout="1000"
availability="optional"/>
<bean id="orderClient" class="...">
<property name="order" ref="orderRef"/>
</bean>
<!--reference-list -->
<reference-list id="orderRefs" interface="com.osgi.bs.IOrderService"
availability="optional">
<reference-listener bind-method="bind" unbind-method="unbind">
<bean class="com.osgi.bs.ReferenceListener"/>
</reference-listener>
</reference-list>

53. BluePrint ——
<!--reference -->
<reference id="orderRef" interface="com.osgi.bs.IOrderService" timeout="1000"
availability="optional"/>
<bean id="orderClient" class="...">
List
<property name="order" ref="orderRef"/>
</bean>
List
<!--reference-list -->
<reference-list id="orderRefs" interface="com.osgi.bs.IOrderService"
availability="optional">
<reference-listener bind-method="bind" unbind-method="unbind">
<bean class="com.osgi.bs.ReferenceListener"/>
</reference-listener>
</reference-list>

54. BluePrint VS
‣
‣
‣ BluePrint Java
‣ R4.0 DS R4.2 BS
‣ DS BS

55. OSGi Web
‣ Web OSGi
✓ Modularity——
✓ Lifecycle—— | | |
✓ Services——

56. OSGi Web
‣
✓ HttpService
✓ Bridged

57. tion we have been using in Toast.
Bridged—In the Bridged approach, the coding and exposure model
same as in Solo, but here the OSGi framework is embedded into a w
OSGi Web
Servlets
‣
JSPs
✓ HttpService
✓ Bridged HTTP
OSGi
Java
Figure 19–1 Solo server-side configuration

58. tion we have been using in Toast.
Bridged—In the Bridged approach, the coding and exposure model
same as in Solo, but here the OSGi framework is embedded into a w
OSGi Web
Servlets
‣
!"#$$%&'()*+,-../00123%0454006%78%972:;0<28=2&:0>4;05?>?00@A>50#! JSPs
✓ HttpService
✓ Bridged 19.2 Embedding the Back End in a Web Application HTTP 323
OSGi
Servlets
Java
JSPs
Figure 19–1 Solo server-side configuration
HTTP
Lite HTTP Bridge
OSGiEquinox
Framework
Application Server
Figure 19–2 Bridged server-side configuration

59. ——WAB
‣ WAB——Web Application Bundle1.0 R4.2
‣ Bundle OSGi Web
‣ Servlet2.5 JSP2.1
Manifest-Version: 1.0
Import-Package: ...
...
Bundle-Version: 1.0
Bundle-Name: orderManager
Bundle-ClassPath: WEB-INF/lib/commons-logging.jar,WEB-INF/
classes
Web-ContextPath: /order
Bundle-ManifestVersion: 2
Bundle-SymbolicName: com.osgi.bs.order

60. Web Bundle Architecture
Web Application
Bundles
Bundles
Deploy Bundle Admin Console Bundle
Application Server/OSGi Runtime
JVM

61. Web Bundle Architecture
Web Application
Bundles
Bundles
Deploy Bundle Admin Console Bundle
Application Server/OSGi Runtime
JVM

62. ‣ Equinox—— OSGi Eclipse
‣ Gemini (Spring DM)—— R4.2
‣ Virgo (Spring DM Server)—— OSGi Application Server
‣ Felix—— OSGi
‣ Nuxeo—— CMS OSGi

63. Questions? Follow me at
twitter.com/sagacity
t.sina.com.cn/n/