An Epic Split between OSGi Tooling

Eclipse PDE and Bndtools

created by Peter Kirschner for EclipseCon Europe 2014

Seminarräume 1 - 3 - Wednesday, October 29, 2014 - 10:30 to 11:05
copyright for Epic Split Theme is with Volvo Trucks
printable version

### About Me ![](images/PeterKirschner.jpg "Peter Kirschner") * name: Peter Kirschner * profession: IT software engineer * email: peter@kirschners.de * twitter: [@peterkir](http://twitter.com/peterkir) * github: https://github.com/peterkir/ece2014

Motivation
Comparison PDE to Bndtools
Development Setup & Update
Programming
Conclusion

### Motivation * PDE pain points * Why bnd/Bndtools

### PDE pain points * [dependency management is difficult](https://bugs.eclipse.org/bugs/show_bug.cgi?id=73957) * target horror * configuration complex * reloading is not fail safe * launch configurations * what the hell has PDE loaded in the runtime * where do these runtime settings come from

Why Bndtools

automated import package analysis including versioning
powerful OSGi bundle repository management
instant Jar bundle creation
annotation based Declarative Service implementation

### Comparison of PDE and Bndtools * Project Layouts * IDE Bundle Handling

Project Layouts

single/multiple bundles
from one project

build path on
eclipse project level

### IDE Bundle Handling * PDE * creates "virtual bundles" for execution Launches * PDE build/export required to create concrete jar files * Bndtools * creates physical jar file inside generated folder * launches execute this jar file inside runtime

### Concurrent areas - Mixed-Mode * Project Build Path * Project Interdependencies * PDE depends on BND * BND depends on PDE * Compiler Settings

### Project Build Path * PDE * projects share a common target * high complexity selecting import-packages * Bndtools * configured for each project * reduces number of import-package * **bnd projects have a precise import-package scope**

### PDE depends on BND * OSGi dev with PDE target * BND creates generated/bundle.jar * p2 publisher generates p2 repo from bnd jar files * include p2 repo in target and reload it

### BND depends on PDE * BND project depending on PDE bundle * PDE feature export/build creating p2 repo * obr repo indexing * reference and refresh cnf * **Luckily we don't required this**

Synchronize Compile Settings

PDE compilation on target

<target_prj>/workspace.target
<pde_prj>/.classpath
<pde_prj>/.settings/org.eclipse.jdt.core.prefs
<pde_prj>/META-INF/MANIFEST.MF -> Bundle-RequiredExecutionEnvironment
<pde_prj>/build.properties -> jre.compilation.profile

Bndtools

<cnf_prj>/ext/repositories.bnd
<bnd_prj>/.classpath
<bnd_prj>/.settings/org.eclipse.jdt.core.prefs
<bnd_prj>/bnd.bnd

Synchronize PDE and bnd compilation via import of JDT settings

### Development setup * Initial Dev Setup * Updating Setup or Target * Mixed-Mode Helpers

### Initial Dev Setup * Eclipse SDK to create/update -> **bootstrap IDE** * install **IDEfix** (eclipse + Bndtools + ...) * mirror required repos locally * **IDEfix** with eval workspace * adapt Bndtools cnf * **IDEfix** product workspace * use custom cnf and develop product

### Update Dev Setup * **bootstrap IDE** * mirror new bndversion and install new IDEfix * mirror and index new target repositories * launch **IDEfix** with an new eval workspace * eval bnd updates on cnf * launch **IDEfix** with new product workspace * compare and configure cnf * import your projects

### Mixed-Mode Helpers * p2 repository mirroring with OBR indexing * IDE bootstrap scripts mirror, install, launch templates * bnd2pde -> p2 publishing and PDE target creation * [PDE TargetReloader Plug-in](https://github.com/MKeck/pde.targetreloader)

### Development * Mixed-Mode * Coding

### Mixed-Mode * After modifications on bnd bundles 1. bnd2pde build 2. target reload required 3. validation via view "TargetPlatform State" * Debugging source code editor is showing read-only bnd target bundles * editing impossible (uncommon behaviour) * open the appropriate source type with Ctrl+Shift+T and CamelCase notation

Coding

with Bndtools can leverage

the Joy of OSGi

### Conclusion * Our Migration Progress * Migration Digest

Our Migration Progress

### Migration Digest * Mixed-Mode is hard -> try to migrate fast * Defaults are not ideal for Enterprise Environments * Bndtools Windows Committers wanted - Windows is special * Work is more comprehensible * Benefits for us exceeded the tooling problems ** Migration is feasible, but is not for free!**

# ??? * contact [me](#/aboutme) for more information * example source on [github](https://github.com/peterkir/ece2014) * example project is work in progress

### Credits for * my suffering colleagues for their * valuable feedback * and patience in adopting new technologies * Peter Kriens, Neil Bartlett, BJ Hargrave * and all other bnd/Bndtools/bindex commiter and contributors * [REVEAL.JS](http://lab.hakim.se/reveal-js/) - HTML presentations by Hakim El Hattab

Volvo Trucks - Making of ...

short version (1:16mn) - commercial spot only

### BND and Bndtools resources * [BND](http://www.aqute.biz/Bnd/Bnd) * [Usergroup](https://groups.google.com/forum/#!forum/Bndtools-users) * [Source on Github](https://github.com/Bndtools/bnd) * [Continuous Builds from Cloudbees](https://Bndtools.ci.cloudbees.com/) * [website](http://Bndtools.org/) * [bug reports/source code on GitHub](https://github.com/Bndtools) * [continuous build on cloudbees](https://Bndtools.ci.cloudbees.com/job/Bndtools.master/) * [usergroup in GoogleGroups](https://groups.google.com/forum/#!forum/Bndtools-users)

### standard references * [OSGi specifications](http://www.osgi.org/Specifications/HomePage) * [LDAP search filter syntax](http://tools.ietf.org/search/rfc4515) * [Semantic Versioning 2.0.0](http://semver.org/)