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Re: [platform-dev] Using WeavingHook in eclipse
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WeavingHooks require a good knowledge of how OSGi works as they have
several constraints and implications.
I can only recommend to start with an absolute minimal example (aka Hook
with system.out), lazy loading is NOT sufficient for making WeavingHooks
work, dependencies should be cut down to the absolute minimum as you
won't be able to (reliable) weave any class you depend on!
So the very first steps should include:
- create a bundle with only osgi+weaving requirements as PACKAGE(!) imports
- make sure your bundle is startet AS EARLY as possible
- do not use DS or any other abstraction laver but register your
WeavinHook with an Activator
- make sure you are able to debug resolving/startup issues
If all that is done, you can try to enhance your bundle to do the actual
tasks.
Am 25.10.20 um 18:22 schrieb Gayan Perera:
I tried adding the correct dependencies, but i couldn't find the bundles
in bundle dependencies, i searched in update site and orbit as well, but
i could only find the source bundles. But for some reason the classes
seems to be resolved for compilation.
Where can i get the correct bundles ? I'm using 4.18 Ibuild and 4.17
release as my PDE target runtimes.
Gayan.
On Sun, Oct 25, 2020 at 6:17 PM Dirk Fauth <dirk.fauth@xxxxxxxxxxxxxx
<mailto:dirk.fauth@xxxxxxxxxxxxxx>> wrote:
Well your bundle requirement looks very wrong since you require the
source bundles that IMHO are not part of the runtime and of course
you should never require sources! That is why your bundle does not
start.
Gayan Perera <gayanper@xxxxxxxxx <mailto:gayanper@xxxxxxxxx>>
schrieb am So., 25. Okt. 2020, 18:13:
Hi Dirk,
Yes PDE annotation are enabled.
The xml generated inside OSGI-INF looks like this
*<?xml version="1.0" encoding="UTF-8"?>*
*<**scr:component**xmlns:scr=*/"http://www.osgi.org/xmlns/scr/v1.1.0
<http://www.osgi.org/xmlns/scr/v1.1.0>"/*immediate=*/"true"/*name=*/"org.gap.eclipse.plugins.eclipseiconpacks.core.IconPackWeavingHook"/*>*
*<service>*
*<provide**interface=*/"org.osgi.framework.hooks.weaving.WeavingHook"/*/>*
*</service>*
*<implementation**class=*/"org.gap.eclipse.plugins.eclipseiconpacks.core.IconPackWeavingHook"/*/>*
*</scr:component>*
My build.properties looks like this
source.. = src/main/java/
output.. = target/classes/
bin.includes = plugin.xml,\
META-INF/,\
.,\
icons/,\
OSGI-INF/
Manifest looks like this
*Manifest-Version**:*/1.0/
*Bundle-ManifestVersion**:*/2/
*Bundle-Name**:*/eclipse-icon-packs Core Plugin/
*Bundle-SymbolicName**:*/eclipse-icon-packs.core;//singleton/*:=*/true/
*Bundle-Version**:*/0.0.1.qualifier/
*Bundle-Activator**:*/org.gap.eclipse.plugins.eclipseiconpacks.core.Activator/
*Require-Bundle**:*/org.eclipse.core.runtime,/
/ org.eclipse.osgi.services,/
/ org.eclipse.equinox.region.source,/
/ org.eclipse.equinox.weaving.hook.source/
*Bundle-RequiredExecutionEnvironment**:*/JavaSE-1.8/
*Bundle-ActivationPolicy**:*/lazy/
*Service-Component**:*/OSGI-INF/org.gap.eclipse.plugins.eclipseiconpacks.core.IconPackWeavingHook.xml/
*Export-Package**:*/org.gap.eclipse.plugins.eclipseiconpacks.core/
/
/
Gayan
On Sun, Oct 25, 2020 at 6:02 PM Dirk Fauth
<dirk.fauth@xxxxxxxxxxxxxx <mailto:dirk.fauth@xxxxxxxxxxxxxx>>
wrote:
Do you have pde ds annotations enabled? Because then the
bundle activation policy should be lazy by default. And also
the @Component annotation is processed correctly.
Gayan Perera <gayanper@xxxxxxxxx
<mailto:gayanper@xxxxxxxxx>> schrieb am So., 25. Okt. 2020,
17:59:
Hi Wim,
No the bundle is not getting started, i thought exposing
the service descriptor should start the bundle. But its
not getting started, i put a break point in
BundleActivator start method to see. It doesn't get hit.
Gayan.
On Sun, Oct 25, 2020 at 4:49 PM Wim Jongman
<wim.jongman@xxxxxxxxx <mailto:wim.jongman@xxxxxxxxx>>
wrote:
Hi,
Is the bundle started?
Cheers,
Wim
On Sun, Oct 25, 2020 at 1:58 PM Gayan Perera
<gayanper@xxxxxxxxx <mailto:gayanper@xxxxxxxxx>> wrote:
Hi,
I’m trying to register a weavinghook using
services descriptors. I annotated my weavinghook
class with component annotation and inhave the
osgi folder with the service descriptor xml in
place. The osgi folder is included in
build.properties as well. But the weavinghook is
not getting called. Can someone guide me how to
get this working.
My endgoal is to weave ImageDescriptor class to
support override bundle images.
Best regards,
Gayan.
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