The document discusses OSGi bundles and bundle repositories. It describes how bundles contain capabilities and requirements that are matched by a repository. It provides examples of bundle metadata formats like Bindex XML and capabilities like OSGi identity, content, and wiring. Bundle repositories are used to install, resolve, and manage bundles and their dependencies.

1. OSGi
Bundle Repository

2. foo$

3. foo$ coffee
-bash: /usr/local/bin/coffee: No such file or directory

4. foo$ coffee
-bash: /usr/local/bin/coffee: No such file or directory
foo$ sudo npm -g install coffee-script
/usr/local/bin/coffee -> /usr/../coffee-script/bin/coffee
/usr/local/bin/cake -> /usr/../coffee-script/bin/cake
coffee-script@1.2.0 /usr/local/lib/node_modules/coffee-script

5. foo$ coffee
-bash: /usr/local/bin/coffee: No such file or directory
foo$ sudo npm -g install coffee-script
/usr/local/bin/coffee -> /usr/../coffee-script/bin/coffee
/usr/local/bin/cake -> /usr/../coffee-script/bin/cake
coffee-script@1.2.0 /usr/local/lib/node_modules/coffee-script
foo$ coffee
coffee>

6. Dependencies

7. Huh? NIH????
• maven
• p2
• ivy
• ...

8. Coffee

9. Coffee
B C

10. Coffee
B C

11. Coffee
B C

12. Alternative Universe
• Additional Namespace
• Self inflicted pain!
• Managed by humans
• We’re bad in this!
• Hides the real dependencies

13. Java package
package com.example; dependency
import com.foo.*;
import aQute.bnd.annotations.*
@Component
public FooImpl implements Foo {
@Reference
void setBla(Bla bla) {
…
}
}

15. Extend
Bundle
er

18. Coffee
B C
Requirement Namespace Capability

19. Coffee
B C
Requirement Namespace Capability

20. Coffee
B C
Requirement Namespace Capability

21. Provide-Capability:
osgi.contract;
osgi.contract=java.ee;
version=1.6,
foo.screen;
width=400;
height=400,
bar.xslt;
bar.xslt=footransform;
url=/foo/transform.xsl

22. Require-Capability:
osgi.contract;
filter:=”(osgi.contract=java.ee)
(&(version>=1.6)(!(version>=1.7)))”,
foo.screen;
filter:=”(&(width>=300)(height>=300))”,
bar.xslt;
filter:=”(bar.xslt=footransform)”,

23. osgi.wiring.*
• Packages (osgi.wiring.package)
• Require Bundle (osgi.wiring.bundle)
• Fragments (osgi.wiring.host)

24. Repository
Repo

25. XML - bindex
<repository name='OSGi Repository'
increment='13582741'
xmlns='http://www.osgi.org/xmlns/repository/v1.0.0'>
<resource location='resources/org.osgi.test.cases.tracker-3.0.0.jar'
sourceLocation='resources/org.osgi.test.cases.tracker-3.0.0-src.jar'>
<capability namespace='osgi.identity'>
<attribute value='org.apache.commons.pool' name='osgi.identity' />
<attribute value='1.5.6' name='version' type='Version' />
<attribute value='osgi.bundle' name='type'/>
</capability>
<capability namespace='osgi.content'>
<attribute value='org.apache.commons.pool-1.5.6.jar' name='osgi.content'/>
<attribute value='Copyright (c) OSGi Alliance (2000, 2011). All Rights Reserved.' name='copyright' />
<attribute value='Common Object Pooling Library' name='description' />
<attribute value='http://commons.apache.org/pool' name='documentation'/>
<attribute value='http://commons.apache.org/pool/api-1.5.6' name='javadoc'/>
<attribute value='http://www.opensource.org/licenses/Apache-2.0' name='license' />
<attribute value='Apache Commons Pool' name='name'/>
<attribute value='http://svn.apache.org/repos/asf/commons/proper/pool/trunk' name='scm'/>
<attribute value='4405' name='size' type='Long' />
<!-- Dynamically generated: <attribute value='...' name='source'/> -->
</capability>
<capability namespace='osgi.wiring.bundle'>
<attribute value='org.apache.commons.pool' name='osgi.wiring.bundle'/>
<attribute value='1' name='manifest.version'/>
<attribute value='1.5.6' name='version' type='Version'/>
</capability>
<capability namespace='osgi.wiring.package'>
<attribute value='org.apache.commons.pool' name='osgi.wiring.package' />
<attribute value='1.5.6' name='version' type='Version'/>
<attribute name="a" value="1"/>
<attribute name="b" value="1"/>
<attribute name="c" value="1"/>
<directive name="mandatory" value="a,b,c"/>
</capability>
<capability namespace='osgi.wiring.package'>
<attribute value='org.apache.commons.pool' name='osgi.wiring.package' />
<attribute value='2.0.6' name='version' type='Version'/>

27. foo$ eclipse
-bash: /usr/local/bin/eclipse: No such file or directory
foo$ sudo obr -g install eclipse
bndtools@1.2.0 /usr/local/lib/node_modules/bndtools
foo$ eclipse

28. foo$ eclipse
-bash: /usr/local/bin/eclipse: No such file or directory
foo$ sudo obr -g install eclipse
bndtools@1.2.0 /usr/local/lib/node_modules/bndtools
foo$ eclipse

29. Q&A