Slides form the Java Forum Stuttgart "Warum OSGi?". More Details see http://www.java-forum-stuttgart.de/abstracts.html#D7

1. Warum OSGi
Christian Baranowski

2. Willkommen
• Christian Baranowski
• Software Qualitätssicherung @ SEITENBAU Gmbh Konstanz (DE)
• Custom Software Solutions
• E-Government Solutions
• Identity Management and SSO Solutions
• www.seitenbau.de
• Vorstand OSGi Users' Forum Germany
• Co-lead (mit Jochen Hiller) German Enterprise Working Group.
• OSGi Code Camp

3. OSGi

4. OSGi
Modularity
Modules

5. OSGi
Modularity
Modules Lifecycle

6. OSGi
A
Service
B
Modularity
Modules Lifecycle Services

7. OSGi
A
Service
B
Modularity
Modules Lifecycle Services
Security

8. OSGi
ist

9. ein

10. offener

11. Standard

12. der

13.
A
Service
B
Modularity
Modules Lifecycle Services
Security

14. Warum OSGi?

15. Erweiterbarkeit / Plugins

16. Erweiterbarkeit / Plugins
Firefox Eclipse Maven
Spring Roo Jenkins

17. Bundle
JAR

18. Bundle
Private

19. Packages
JAR

20. Bundle
Private

21. Packages
Exported

22.
Packages
JAR

23. Bundle
Private

24. Packages
Imported

25. Exported

26.
Packages Packages
JAR

27. Modul Level
Funktionen Klassen Packages

28. Modul Level
Funktionen Klassen Packages Bundles

29. Bundles

30. Bundles
A
Provider

31. Bundle

32. Bundles
A
Provider

33. Bundle
Manifest-Version: 1.0
Bundle-ManifestVersion: 2
Bundle-SymbolicName: A
Bundle-Version: 1.0.1
Export-Package:
echo.api;version=1.0.0,
echo.sysout;version=1.0.0

34. Bundles
A B
Provider

35. Bundle Consumer

36. Bundle
Manifest-Version: 1.0
Bundle-ManifestVersion: 2
Bundle-SymbolicName: A
Bundle-Version: 1.0.1
Export-Package:
echo.api;version=1.0.0,
echo.sysout;version=1.0.0

37. Bundles
A B
Provider

38. Bundle Consumer

39. Bundle
Manifest-Version: 1.0 Manifest-Version: 1.0
Bundle-ManifestVersion: 2 Bundle-ManifestVersion: 2
Bundle-SymbolicName: A Bundle-SymbolicName: B
Bundle-Version: 1.0.1 Bundle-Version: 1.0.0
Export-Package: Import-Package:
echo.api;version=1.0.0, echo.api;version=[1.0,2),
echo.sysout;version=1.0.0 echo.sysout;version=[1.0,2)

40. Demo Modularity / Lifecycle
Extender World Desktop
Box
API
Arch
Provisioning

41. OSGi Services

42. OSGi Services
API

43. Bundle
Manifest-Version: 1.0
Bundle-ManifestVersion: 2
Bundle-SymbolicName: api
Bundle-Version: 2.0.0
Export-Package:
echo.api;version=1.0.0

44. OSGi Services
Provider

45. Bundle Service
Manifest-Version: 1.0
Bundle-ManifestVersion: 2
Bundle-SymbolicName: A
Bundle-Version: 1.0.1
API

46. Bundle
Import-Package:
echo.api;version=[1.0,2)
Service-Component:
OSGI-INF/EchoProvider.xml
Manifest-Version: 1.0
Bundle-ManifestVersion: 2
Bundle-SymbolicName: api
Bundle-Version: 2.0.0
Export-Package:
echo.api;version=1.0.0

47. OSGi Services
Provider

48. Bundle Consumer

49. Bundle
Service
Manifest-Version: 1.0 Manifest-Version: 1.0
Bundle-ManifestVersion: 2 Bundle-ManifestVersion: 2
Bundle-SymbolicName: A Bundle-SymbolicName: B
Bundle-Version: 1.0.1 Bundle-Version: 1.0.0
API

50. Bundle Import-Package:
Import-Package:
echo.api;version=[1.0,2) echo.api;version=[1.0,2)
Service-Component: Service-Component:
OSGI-INF/EchoProvider.xml OSGI-INF/EchoClient.xml
Manifest-Version: 1.0
Bundle-ManifestVersion: 2
Bundle-SymbolicName: api
Bundle-Version: 2.0.0
Export-Package:
echo.api;version=1.0.0

51. OSGi Services
Provider

52. Bundle Consumer

53. Bundle
Service
Instance

54. Coupling
Manifest-Version: 1.0 Manifest-Version: 1.0
Bundle-ManifestVersion: 2 Bundle-ManifestVersion: 2
Bundle-SymbolicName: A Bundle-SymbolicName: B
Bundle-Version: 1.0.1 Bundle-Version: 1.0.0
API

55. Bundle Import-Package:
Import-Package:
echo.api;version=[1.0,2) echo.api;version=[1.0,2)
Service-Component: Service-Component:
OSGI-INF/EchoProvider.xml OSGI-INF/EchoClient.xml
Manifest-Version: 1.0
Bundle-ManifestVersion: 2
Bundle-SymbolicName: api
Bundle-Version: 2.0.0
Export-Package:
echo.api;version=1.0.0

56. Service Registry
Provider
Name Value
type api.Echo
- register availavility 5
- unregister
Consumer
Name Value - get
- listen
type api.Echo
availavility 5 Service Registry
... ...

57. OSGi Services Demo
World Desktop
API
Wall
Sensor
Robot
devices

58. OSGi Declarative Services
API

59. Bundle

60. OSGi Declarative Services
Provider

61. Bundle Service
API

62. Bundle
scr:component name=echo.sysout.EchoProvider
implementation class=echo.sysout.EchoProvider/
service
provide interface=echo.api.Echo /
/service
/scr:component

63. OSGi Declarative Services
Provider

64. Bundle Consumer

65. Bundle
Service
API

66. Bundle
scr:component name=echo.consumer.EchoClient
scr:component name=echo.sysout.EchoProvider implementation class=echo.consumer.EchoClient/
implementation class=echo.sysout.EchoProvider/ reference name=Echo
service interface=echo.api.Echo
provide interface=echo.api.Echo / bind=setEcho unbind=unsetEcho /
/service /scr:component
/scr:component

67. DS Annotation
Provider

68. Bundle Consumer

69. Bundle
Service
import org.osgi...annotations.*;
import echo.api.Echo;
@Component
public class EchoClient {
API

70. Bundle
Echo echo;
import org.osgi.service.component.annotations.*;
import echo.api.Echo; @Reference
public void setEcho(Echo echo){
@Component this.echo = echo;
public class EchoProvider implements Echo { }
@Activate public void unsetEcho(Echo echo){
public void activate() { this.echo = null;
}
} }
}

71. Blueprint Services
API

72. Bundle

73. Blueprint Services
Consumer

74. Bundle
core-context.xml
blueprint
bean class=echo.consumer.EchoClient
API

75. Bundle property name=echo ref=echo /
/bean
/blueprint

76. Blueprint Services
Service Consumer

77. Bundle
core-context.xml
blueprint
bean class=echo.consumer.EchoClient
API

78. Bundle property name=echo ref=echo /
/bean
/blueprint
osgi-context.xml
blueprint
reference id=echo
interface=echo.api.Echo/
/blueprint

79. Blueprint Services
Provider

80. Bundle Consumer

81. Bundle
Service
core-context.xml
core-context.xml
blueprint
beans
context:component-scan bean class=echo.consumer.EchoClient
base-package=echo.sysout /
API

82. Bundle property name=echo ref=echo /
Spring

83. Proprietär
/beans /bean
/blueprint
@Component(echo)
public class EchoProvider implements Echo {
@PostConstruct
osgi-context.xml
public void init() { blueprint
}
} reference id=echo
interface=echo.api.Echo/
/blueprint

84. Blueprint Services
Provider

85. Bundle Consumer

86. Bundle
Service
core-context.xml
core-context.xml
blueprint
beans
context:component-scan bean class=echo.consumer.EchoClient
base-package=echo.sysout /
API

87. Bundle property name=echo ref=echo /
Spring

88. Proprietär
/beans /bean
/blueprint
@Component(echo)
public class EchoProvider implements Echo {
@PostConstruct
osgi-context.xml
public void init() { blueprint
}
} reference id=echo
interface=echo.api.Echo/
osgi-context.xml /blueprint
blueprint
service ref=echo
interface=echo.api.Echo /
/blueprint

89. Demo Dynamik mit
OSGi Services

90. Provider
Name Value
type api.Echo
- register availavility 5
- unregister
Consumer
Name Value - get
- listen
type api.Echo
availavility 5 Service Registry
... ...
PojoSR
Pojo Service Registry

91. Remote Services
Host

92. A
API

93. Bundle Provider

94. Bundle

95. Remote Services
Host

96. A
API

97. Bundle Provider

98. Bundle
service.exported.interfaces=*

99. Remote Services
Host

100. A
API

101. Bundle Provider

102. Bundle
service.exported.interfaces=*
Distribution
Provider Impl. (ECF)

103. Remote Services
Host

104. A
API

105. Bundle Provider

106. Bundle
service.exported.interfaces=*
listen
Distribution
Provider Impl. (ECF)

107. Remote Services
Host

108. A
API

109. Bundle Provider

110. Bundle
service.exported.interfaces=*
listen
get
Distribution
Provider Impl. (ECF)

111. Remote Services
Host

112. A
API

113. Bundle Provider

114. Bundle
service.exported.interfaces=*
endpoint
listen
get
Distribution
Provider Impl. (ECF)

115. Remote Services
Host

116. A
API

117. Bundle Provider

118. Bundle
exported

119. service.exported.interfaces=*
endpoint service
listen
get
Distribution
Provider Impl. (ECF)

120. Remote Services
Host

121. A Host

122. B
API

123. Bundle Provider

124. Bundle Consumer

125. Bundle API

126. Bundle
exported

127. service.exported.interfaces=*
endpoint service
listen
get
Distribution
Provider Impl. (ECF)

128. Remote Services
Host

129. A Host

130. B
API

131. Bundle Provider

132. Bundle Consumer

133. Bundle API

134. Bundle
exported

135. service.exported.interfaces=*
endpoint service
listen
get
Distribution
Provider Impl. (ECF)

136. Remote Services
Host

137. A Host

138. B
API

139. Bundle Provider

140. Bundle Consumer

141. Bundle API

142. Bundle
exported

143. service.exported.interfaces=*
endpoint service
listen
register
get
Distribution
Provider Impl. (ECF)

144. Remote Services
Host

145. A Host

146. B
API

147. Bundle Provider

148. Bundle Consumer

149. Bundle API

150. Bundle
exported

151. service.exported.interfaces=*
endpoint service to

152. endpoint
listen
register
get
Distribution
Provider Impl. (ECF)

153. Remote Services
Host

154. A Host

155. B
API

156. Bundle Provider

157. Bundle Consumer

158. Bundle API

159. Bundle
exported

160. imported

161.
service.exported.interfaces=* service
endpoint service to

162. endpoint
listen
register
get
Distribution
Provider Impl. (ECF)

163. Remote Services Demo

164. OSGi Tooling...

165. Bndtools
Import Analysis Repositories OBR Resolving
Instant Builder Semantic Versioning Integrated Testing

166. Warum OSGi?
1. Modules, Extension, Plug-ins,
Plattformen
2. Services, Service Registry, Dynamik
Instance Coupling
3. Einfachere Entwicklung keine Restarts

167. “Warum OSGi?
... because it is a better way to develop
software ... “ - BJ Hargrave, IBM
Peter Kriens, aQute

168. QA
Twitter @tux2323

169. Ressourcen
• OSGi Alliance
http://www.osgi.org/
• OSGi in Action (ISBN 1933988916)
Richard S. Hall, Karl Pauls, Stuart McCulloch, and David Savage
• Why OSGi?
BJ Hargrave (IBM), Peter Kriens (aQute)
http://www.slideshare.net/bjhargrave/why-osgi
• OSGi: Not Easy Enough to Use. Not as Productive as it Should Be,
Rod Johnson
http://www.theserverside.com/news/2240037102/OSGi-Not-Easy-Enough-
to-Use-Not-as-Productive-as-it-Should-Be
• Bndtools
http://bndtools.org/
• OSGi Demo Mars Robot Project
http://code.google.com/a/eclipselabs.org/p/occ/
• PojoSR
http://code.google.com/p/pojosr/