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Understanding and extending p2 for fun and profit

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Pascal Rapicault
Pascal Rapicault

In a tutorial style, this detailed presentation covers all the major aspects of p2. It ranges from the simple usage of product delivery to an in-depth presentation of the p2 concepts.

Technology
1 of 126
Using p2 for fun and profit Pascal Rapicault* Ian Bull** Andrew Niefer* Jeff McAffer** * IBM Rational ** EclipseSource
Provision what – where Engineers Users Test Automated Builds Test source code open source licensed software in-house built applications tools runtimes
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Wide range of requirements
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],p2 is about installing!
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Trends in Eclipse
How does p2 help? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
From Install to Service ,[object Object],[object Object],[object Object],[object Object],p2 offers a continuum from initial installation to serviceability
p2 in wild ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Outline ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
What is RCP? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
What is a Product? ,[object Object],[object Object],[object Object],[object Object],[object Object]
Creating a feature based product ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Creating a feature based product ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Creating a feature based product ,[object Object]
Creating a feature for our plug-in ,[object Object],[object Object]
A feature for the p2 parts ,[object Object],[object Object]
Creating the product file ,[object Object],[object Object],[object Object],[object Object]
Launching the product (from within eclipse)
The running product In self-hosting mode, the application being launched is not p2-enabled, as such the p2 dialogs can not be brought up. We can only update if we have a profile. This problem will unlikely be addressed in 3.5.
Publishing the application to a repository
The result of the export ,[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
One construct to rule them all Decouple decision making from the actual content Everything is an IU Everything is installable It is also referred to as “metadata” IU (id, ver)
Anatomy of an IU Provided Capabilities Required Capabilities Properties Artifact reference Actions Class: IInstallableUnit IU (id, ver)
Anatomy of an IU, more ,[object Object],[object Object],[object Object],[object Object]
Anatomy of an IU, requirements / capabilities ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Separation of concerns ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Metadata Artifacts
Artifacts ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Repositories ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Metadata Repository ,[object Object],[object Object],[object Object],[object Object],[object Object]
Built-in metadata repositories ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Artifact Repository ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Artifact Repository ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Id + version == unique content ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[1] Andrew’s short talk.
Built-in artifact repositories ,[object Object],[object Object],[object Object]
p2 Architecture Metadata Artifacts Runtimes Profiles OS Eclipse Engine Eclipse Classic Eclipse for C++ Other Director Repositories Touchpoints
The Director Application ,[object Object],[object Object],[object Object],[object Object],http://wiki.eclipse.org/Equinox_p2_director_application
Running the director ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
p2 in Action Transports Http/Https File system Volume Director Profiles Runtimes Provisioning operation requested Metadata fetched and constraints analyzed IU install, uninstall, update operations Artifact availability and mirroring Mirroring Data transfer IUs configured into runtimes Profile updated Repositories p2 Update Site Engine Eclipse/OSGi Native/OS
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
A p2-enabled application ,[object Object],[object Object]
What is being run ,[object Object]
Layout of an installation Configuration area p2 data area Artifact repository index. This allows the plug-ins to be served to other instances.
Configuration data detailed ,[object Object],[object Object],[object Object],Configuration area Simple configurator data
p2 data area Download cache, where non-eclipse pieces are mirrored before being installed. Profile registry Storage for the profile Lock file created when the profile is being modified Current and previous state of the system MailApp.profile
Profile and profile registry ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Management modes and profile registry ,[object Object],[object Object],[object Object],[object Object],[object Object]
Changing a profile ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Creating an update ,[object Object]
Version Numbers ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Installing the update
Installing the update ,[object Object],[object Object]
After the update and restart
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Creating a new plug-in to install ,[object Object]
Create a feature to deliver our plug-ins ,[object Object]
Exporting the feature ,[object Object],[object Object]
The publisher ,[object Object],[object Object],[object Object],[object Object],[object Object]
Features and Bundles Publisher ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],This will generate metadata for the plug-ins and features found in source. Note that PDE has an option to do it automatically.
Installing the newly created extension
 
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Example: Building with p2
Slicing repositories ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],<p2.mirror source= &quot;${Eclipse.Repo-3.5M6}&quot; destination= &quot;${p2Repo}&quot; > <slicingOptions followStrict= &quot;true&quot; /> <iu id= &quot;org.eclipse.equinox.p2.user.ui.feature.group&quot; /> <iu id= &quot;org.eclipse.ecf&quot; /> <iu id= &quot;org.eclipse.ecf.filetransfer&quot; /> .... <iu id= &quot;org.apache.ant&quot; /> <iu id= &quot;org.eclipse.core.runtime.compatibility.registry&quot; /> </p2.mirror> ,[object Object],[org.eclipse.pde.build.examples.rcp.cloud.releng/buildProduct.xml createP2Repo]
Transforming repositories ,[object Object],[object Object],[object Object],[object Object],<p2.repo2runnable destination= &quot;${transformedRepoLocation}&quot; > <source dir= &quot;${repoBaseLocation}/&quot; includes= &quot;*&quot; /> </p2.repo2runnable> ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[org.eclipse.pde.build/scripts/genericTargets.xml transformRepos]
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Publishing metadata ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[org.eclipse.pde.build.examples.rcp.cloud.releng/buildDirectory/assemble.org.eclipse.pde.build.container.feature.win32.win32.x86.xml]
Publishing Products ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Running the Director ,[object Object],[object Object],<java jar= &quot;${equinoxLauncherJar}&quot; fork= &quot;true&quot; failonerror= &quot;true&quot; > <arg line= &quot;-application org.eclipse.equinox.p2.director.app.application&quot; /> <arg line= &quot;-nosplash&quot; /> <arg line= &quot;--launcher.suppressErrors&quot; /> <arg line= &quot;-consoleLog&quot; /> <arg line= &quot;-flavor ${p2.flavor}&quot; /> <arg line= &quot;-installIU ${p2.director.iu}&quot; /> <arg line= &quot;-version ${p2.director.version}&quot; /> <arg line= &quot;-p2.os ${os}&quot; /> <arg line= &quot;-p2.ws ${ws}&quot; /> <arg line= &quot;-p2.arch ${arch}&quot; /> <arg line= &quot;-roaming&quot; /> <arg line= &quot;-profile ${p2.director.profile}&quot; /> <arg line= &quot;${p2.director.extraArgs}&quot; /> <arg line= &quot;-metadataRepository&quot; /> <arg value= &quot;${p2.repo}&quot; /> <arg line= &quot;-artifactRepository&quot; /> <arg value= &quot;${p2.repo}&quot; /> <arg line= &quot;-destination&quot; /> <arg value= &quot;${p2.director.installPath}&quot; /> <arg line= &quot;-bundlepool&quot; /> <arg value= &quot;${p2.director.bundlepool}&quot; /> <jvmarg value= &quot;-Declipse.p2.data.area=${p2.director.dataArea}&quot; /> <jvmarg line= &quot;${p2.director.extraVMArgs}&quot; /> </java> [org.eclipse.pde.build/scripts/genericTargets.xml runDirector]
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Categorizing repository content ,[object Object]
Creating the category
Categorizing our feature
 
UpdateSite Publisher ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],When using the category.xml, use the org.eclipse.equinox.p2.publisher.CategoryPublisher
 
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Installable Unit Fragments ,[object Object],[object Object],[object Object],[object Object],[object Object],Class: IInstallableUnitFragment
Installable Unit Patches ,[object Object],[object Object],[object Object],[object Object],[object Object],Note: In 3.5 the feature patch editor only exposes some of those capabilities. See also http://aniefer.blogspot.com/2009/06/patching-features-with-p2.html
Installable Units ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Understanding the metadata generated ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],<provided namespace='osgi.bundle' name='org.apache.commons.codec' version='1.3.0'/> <provided namespace='java.package' name='org.apache.commons.codec' version='1.3.0'/> <provided namespace='java.package' name='org.apache.commons.codec.binary' version='1.3.0'/> <provided namespace='java.package' name='org.apache.commons.codec.digest' version='1.3.0'/> <provided namespace='java.package' name='org.apache.commons.codec.language' version='1.3.0'/> <provided namespace='java.package' name='org.apache.commons.codec.net' version='1.3.0'/> <provided namespace='org.eclipse.equinox.p2.eclipse.type' name='bundle' version='1.0.0'/>
Understanding the metadata generated ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],<provided namespace='osgi.fragment' name='org.eclipse.swt' version='3.5.0.v3536b'/> <provided namespace='osgi.bundle' name='org.eclipse.swt.win32.win32.x86' version='3.5.0.v3536b'/> It is important to remember that this is only the metadata generated by the applications provided as part of the publisher, but the metadata is generic and is yours to extend.
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Plug-ins map ECF Eclipse touchpoint Native touchpoint Tooling OSGi Update site repository engine Metadata Director Repository UI … …
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Core plug-ins ( 1 /2)
Core plug-ins (2/2) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[1] - Ant task - http://wiki.eclipse.org/Equinox/p2_Ant_Tasks
Transport related plug-ins ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Eclipse management ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[1] – Actions defined by eclipse touchpoint - http://wiki.eclipse.org/Equinox/p2/Engine/Touchpoint_Instructions
Native support ,[object Object],[object Object],[1] – Actions defined by native touchpoint - http://wiki.eclipse.org/Equinox/p2/Engine/Touchpoint_Instructions
UI plug-ins ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Repositories implementation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Misc management bundles ,[object Object],[object Object],[object Object],[object Object],[object Object],[1] – Director application doc - http://wiki.eclipse.org/Equinox_p2_director_application
Tooling plug-ins ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[1] - Ant task - http://wiki.eclipse.org/Equinox/p2_Ant_Tasks
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Tweaking the p2 UI for your audience ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Add a p2 Preference Page ,[object Object],[object Object],[object Object],[object Object]
Adding Automated Updates and other p2 Preferences ,[object Object]
Remove automatic updates ,[object Object],[object Object],[object Object],[object Object]
Customizing the UI ,[object Object],[object Object],[object Object],[object Object],[object Object]
Example – Control the Update ,[object Object],[object Object],[object Object],[object Object]
Example – Control the Update
The controlled mode ,[object Object],[object Object]
Granularity of what is visible ,[object Object],[object Object],[object Object],[object Object],[object Object]
Granularity of what is visible
Updating on Startup ,[object Object]
UI code snippets ,[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Queryable / Query ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Profile ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Planning a profile change ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Engine ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Engine flowchart
Touchpoint / actions ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Engine and actions put together
Artifact processor ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Canonical JBDiff Artifact Repository Pack200 Pack200 Processor Artifact processor, illustrated
References ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Thank you
F.A.Q.
Bundle Pooling ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Installing just a plug-in ,[object Object],[object Object],[object Object]
Boot sequence ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Missing requirements ,[object Object],[object Object],[object Object],[object Object]

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Understanding and extending p2 for fun and profit

  • 1. Using p2 for fun and profit Pascal Rapicault* Ian Bull** Andrew Niefer* Jeff McAffer** * IBM Rational ** EclipseSource
  • 2. Provision what – where Engineers Users Test Automated Builds Test source code open source licensed software in-house built applications tools runtimes
  • 3.
  • 4.
  • 5.
  • 6.
  • 7.
  • 8.
  • 9.
  • 10.
  • 11.
  • 12.
  • 13.
  • 14.
  • 15.
  • 16.
  • 17.
  • 18.
  • 19. Launching the product (from within eclipse)
  • 20. The running product In self-hosting mode, the application being launched is not p2-enabled, as such the p2 dialogs can not be brought up. We can only update if we have a profile. This problem will unlikely be addressed in 3.5.
  • 21. Publishing the application to a repository
  • 22.
  • 23.
  • 24. One construct to rule them all Decouple decision making from the actual content Everything is an IU Everything is installable It is also referred to as “metadata” IU (id, ver)
  • 25. Anatomy of an IU Provided Capabilities Required Capabilities Properties Artifact reference Actions Class: IInstallableUnit IU (id, ver)
  • 26.
  • 27.
  • 28.
  • 29.
  • 30.
  • 31.
  • 32.
  • 33.
  • 34.
  • 35.
  • 36.
  • 37. p2 Architecture Metadata Artifacts Runtimes Profiles OS Eclipse Engine Eclipse Classic Eclipse for C++ Other Director Repositories Touchpoints
  • 38.
  • 39.
  • 40. p2 in Action Transports Http/Https File system Volume Director Profiles Runtimes Provisioning operation requested Metadata fetched and constraints analyzed IU install, uninstall, update operations Artifact availability and mirroring Mirroring Data transfer IUs configured into runtimes Profile updated Repositories p2 Update Site Engine Eclipse/OSGi Native/OS
  • 41.
  • 42.
  • 43.
  • 44. Layout of an installation Configuration area p2 data area Artifact repository index. This allows the plug-ins to be served to other instances.
  • 45.
  • 46. p2 data area Download cache, where non-eclipse pieces are mirrored before being installed. Profile registry Storage for the profile Lock file created when the profile is being modified Current and previous state of the system MailApp.profile
  • 47.
  • 48.
  • 49.
  • 50.
  • 51.
  • 52.
  • 54.
  • 55. After the update and restart
  • 56.
  • 57.
  • 58.
  • 59.
  • 60.
  • 61.
  • 62. Installing the newly created extension
  • 63.  
  • 64.
  • 65.
  • 66.
  • 67.
  • 68.
  • 69.
  • 70.
  • 71.
  • 72.
  • 73.
  • 76.  
  • 77.
  • 78.  
  • 79.
  • 80.
  • 81.
  • 82.
  • 83.
  • 84.
  • 85.
  • 86.
  • 87. Plug-ins map ECF Eclipse touchpoint Native touchpoint Tooling OSGi Update site repository engine Metadata Director Repository UI … …
  • 88.
  • 89.
  • 90.
  • 91.
  • 92.
  • 93.
  • 94.
  • 95.
  • 96.
  • 97.
  • 98.
  • 99.
  • 100.
  • 101.
  • 102.
  • 103.
  • 104. Example – Control the Update
  • 105.
  • 106.
  • 107. Granularity of what is visible
  • 108.
  • 109.
  • 110.
  • 111.
  • 112.
  • 113.
  • 114.
  • 116.
  • 117. Engine and actions put together
  • 118.
  • 119. Canonical JBDiff Artifact Repository Pack200 Pack200 Processor Artifact processor, illustrated
  • 120.
  • 122. F.A.Q.
  • 123.
  • 124.
  • 125.
  • 126.

Editor's Notes

  1. HENRIK What does it mean to “provision Eclipse in the Entrprise” – it could mean anything from provisioning source code and pre-built components to developers to automatic and policy driven installation of in-house built applications based to servers, desktop machines and small handheld device.
  2. HENRIK Eclipse and Equinox is used for many purposes – and users has expressed a wide variety of requirements – requirements that often are direct conflict.
  3. JEFF
  4. JEFF
  5. JEFF
  6. `