Nabble - Apache Felix - Users

Re: Bundle resolve policy in Felix

2009-11-26T08:00:55Z

On 11/26/09 6:02, Guo Du wrote:

> On Thu, Nov 26, 2009 at 2:49 AM, Ivan<xhhsld@...> wrote:
>
>> Hi,
>> While trying the Felix as the OSGI runtime, I have some questions about
>> the resolve policy, please help to give some comments, thanks !
>> 1. Can an import connection be wired to an installed (not resolved)
>>
> No
> Bundle status will be changes to resolved automatically from installed
> when it's export package was used by any of the bundles including it's
> activator. So no bundle will export package while in installed status.
>
>
>> that " Bundle B resolved, Bundle A resloved". I wonder when the resolve
>> action will occured ? Will Felix check whether all the installed bundle
>>
> When one of bundle.start() was called.
>
>
>> could be resolved once a new bundle is installed or resolved ?
>>
> Felix only automatically start bundle if it's exported package was
> requested by other starting bundle.
>

It will automatically resolve, not start.

-> richard

> -Guo
>
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>

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Re: Bundle resolve policy in Felix

2009-11-26T07:59:49Z

On 11/25/09 21:49, Ivan wrote:
> Hi,
> While trying the Felix as the OSGI runtime, I have some questions about
> the resolve policy, please help to give some comments, thanks !
> 1. Can an import connection be wired to an installed (not resolved)
> bundle ? I found there is description in the spec 3.7, which says "A
> resolved exporter must be preferred over an unresolved exporter.". So does
> it mean that the answer is yes ?
>

All bundles must be resolved to have wires and to have wires to them.
The spec is just saying you should prefer already resolved bundles over
bundles that you must yet resolve.

> 2. I have a bunlde A and bundle B, bundle A needs to import some packages
> from bundle B. But my installation order is that first A, then B. From the
> log messages, I could see after installing A, FelixDispatchQueue said that
> bunldle A is in the installed state. Then I install B, the messages showed
> that " Bundle B resolved, Bundle A resloved". I wonder when the resolve
> action will occured ? Will Felix check whether all the installed bundle
> could be resolved once a new bundle is installed or resolved ?
>

Felix does not try to resolve bundles automatically, it only resolves
them on demand. Typically this is when you try to start a bundle, which
will resolve that bundle plus the bundles on which it depends transitively.

> 3. Related to question 2, if I have ten bundles and I am sure that each
> bundle could find export packages from other nine bundles. But I do not
> install them according to their dependency relations. Then, will the logic
> below work correctly ? In my tests, it seems that they could work correctly.
> String[] locations = {......};
> Bundle[] bundles = new Bundles[locations.length];
> for(int i=0;i<locations.length;i++) {
> bundles[i] = bundleContext.installBundle(locations[i]);
> }
> for(Bundle b : bundles) {
> b.start();
> }
>

Yes. For example, if all of your bundles are installed and started, on a
subsequent restart of the framework, it will first reinstall all bundles
in one pass, then start them in another pass, which ensures dependencies
can be satisfied.

The above code does the same thing.

-> richard

> Ivan
>
>

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Re: maven-bundle-plugin: strange failure during release:prepare...

2009-11-26T07:05:13Z

I've submitted a patch to FELIX-1847 [1]

For us the resolution of the issue (at least in the subversion trunk) is
quite essential as none of the work a rounds can be applied, without the
patch we cannot do multi-module builds, and adding the Service-Component
directive to the config (in the parent) is not an option as the non scr
project will then fail.

Cheers,
reto

1. https://issues.apache.org/jira/secure/ManageAttachments.jspa?id=12439947

Patrick Forhan said the following on 10/01/2009 11:32 PM:

> So, the fix is to do one of the following:
> - revert to 1.4.3
> - add a <Service-Component>OSGI-INF/serviceComponents.xml</Service-Component>
> to force a non-duplicated reference.
>
> Neither one is great, but I'm at least working again.
>
> Pat.
>
>

--
Reto Bachmann-Gmür
trialox.org
Tel: +41445005015

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Re: Bundle resolve policy in Felix

2009-11-26T06:43:24Z

On Thu, Nov 26, 2009 at 2:04 PM, Ivan <xhhsld@...> wrote:
> 2009/11/26 Guo Du <mrduguo@...>
> So I suppose the word "start" here means that its status would be
> "resolved", not "active". Right ?
Yes. bundle.start() will end up with resolved for fragment bundle,
otherwise will be always active.

-Guo

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Re: Bundle resolve policy in Felix

2009-11-26T06:04:22Z

2009/11/26 Guo Du <mrduguo@...>

> On Thu, Nov 26, 2009 at 1:28 PM, Ivan <xhhsld@...> wrote:
> > But what does "A resolved exporter must be preferred over an unresolved
> > exporter." mean ? :-(
> It means if both bound A(installed) and B(resolved) export package P
> for same version V, framework will get the P from B and leave A in
> installed status.
>
> > In the doc, it says that the framework will try to resolve the bundle
> once
> > it is installed, and it will also try to resolve the bundle in installed
> It's not clear to say "framework will try to resolve the bundle once
> it is installed".
> This resolve may means parse the bundle header. But it's definite not
> to put the bundle in resolved status after installed.
>
> > As the spec says, the classloader for the bundle could be created once
> it
> > is resolved, so why does the framework need to start the bundle if its
> > export packages are wired to other bundles ? Is it the expected behavior
> by
> > the spec ?
> Yes. Start the bundle to resolved status is the way to mark bundle as
> IN USE. The flow are:
> Resolved -> Create classloader -> Load class for others bundles
>
> So no start/resolved, no class available to be consumed.
>

So I suppose the word "start" here means that its status would be
"resolved", not "active". Right ?
Many thanks !

> -Guo
>
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--
Ivan

Re: Bundle resolve policy in Felix

2009-11-26T05:52:48Z

On Thu, Nov 26, 2009 at 1:28 PM, Ivan <xhhsld@...> wrote:
> But what does "A resolved exporter must be preferred over an unresolved
> exporter." mean ? :-(
It means if both bound A(installed) and B(resolved) export package P
for same version V, framework will get the P from B and leave A in
installed status.

> In the doc, it says that the framework will try to resolve the bundle once
> it is installed, and it will also try to resolve the bundle in installed
It's not clear to say "framework will try to resolve the bundle once
it is installed".
This resolve may means parse the bundle header. But it's definite not
to put the bundle in resolved status after installed.

> As the spec says, the classloader for the bundle could be created once it
> is resolved, so why does the framework need to start the bundle if its
> export packages are wired to other bundles ? Is it the expected behavior by
> the spec ?
Yes. Start the bundle to resolved status is the way to mark bundle as
IN USE. The flow are:
Resolved -> Create classloader -> Load class for others bundles

So no start/resolved, no class available to be consumed.

-Guo

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Re: Bundle resolve policy in Felix

2009-11-26T05:28:23Z

Thanks for your response, please help to check my comments.

2009/11/26 Guo Du <mrduguo@...>

> On Thu, Nov 26, 2009 at 2:49 AM, Ivan <xhhsld@...> wrote:
> > Hi,
> > While trying the Felix as the OSGI runtime, I have some questions
> about
> > the resolve policy, please help to give some comments, thanks !
> > 1. Can an import connection be wired to an installed (not resolved)
> No
> Bundle status will be changes to resolved automatically from installed
> when it's export package was used by any of the bundles including it's
> activator. So no bundle will export package while in installed status.
>

So wire connection could only be established to those resolved bundles.
right ?
But what does "A resolved exporter must be preferred over an unresolved
exporter." mean ? :-(
In the doc, it says that the framework will try to resolve the bundle once
it is installed, and it will also try to resolve the bundle in installed
status if start method is called.
For Felix, Are there any other chances that the resolve process will be
fired ?

>
> > that " Bundle B resolved, Bundle A resloved". I wonder when the resolve
> > action will occured ? Will Felix check whether all the installed bundle
> When one of bundle.start() was called.
>
> > could be resolved once a new bundle is installed or resolved ?
> Felix only automatically start bundle if it's exported package was
> requested by other starting bundle.
>

As the spec says, the classloader for the bundle could be created once it
is resolved, so why does the framework need to start the bundle if its
export packages are wired to other bundles ? Is it the expected behavior by
the spec ?

>
> -Guo
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@...
> For additional commands, e-mail: users-help@...
>
>

--
Ivan

Re: Bundle Threads

2009-11-26T04:51:37Z

On Thu, Nov 26, 2009 at 12:31 PM, chihi asma <chihi_asma@...> wrote:
> In lunix, when I want to see system process, I type "ps", among thoses processes there is java ones, (I'm executing felix) so to which bundle belong those java process?
Some background reading:
http://java.sun.com/docs/books/tutorial/essential/concurrency/procthread.html

The answer is there is no bundle/thread map to process. Thread may
running by some osgi bundle, all bundle/threads are inside the java
process.

-Guo

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Re: Bundle Threads

2009-11-26T04:31:09Z

In lunix, when I want to see system process, I type "ps", among thoses processes there is java ones, (I'm executing felix) so to which bundle belong those java process?
Thanks

--- En date de : Jeu 26.11.09, Guo Du <mrduguo@...> a écrit :

De: Guo Du <mrduguo@...>
Objet: Re: Bundle Threads
À: users@...
Date: Jeudi 26 Novembre 2009, 12h09

On Thu, Nov 26, 2009 at 10:44 AM, chihi asma <chihi_asma@...> wrote:
> Can anyone tell me please how can I know how much a bundle executes threads when it starts?
> When I type "ps" command in my linux console I see multiple threads related to the JVM.
Where you typed "ps"?

It doesn't matter where you type "ps" in LINUX shell or FELIX shell,
there is nothing related to threads. What exact threads you mean:
operation system process, osig bundle or java thread?

-Guo

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Re: Bundle Threads

2009-11-26T03:09:23Z

On Thu, Nov 26, 2009 at 10:44 AM, chihi asma <chihi_asma@...> wrote:
> Can anyone tell me please how can I know how much a bundle executes threads when it starts?
> When I type "ps" command in my linux console I see multiple threads related to the JVM.
Where you typed "ps"?

It doesn't matter where you type "ps" in LINUX shell or FELIX shell,
there is nothing related to threads. What exact threads you mean:
operation system process, osig bundle or java thread?

-Guo

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Re: Bundle resolve policy in Felix

2009-11-26T03:02:31Z

On Thu, Nov 26, 2009 at 2:49 AM, Ivan <xhhsld@...> wrote:
> Hi,
> While trying the Felix as the OSGI runtime, I have some questions about
> the resolve policy, please help to give some comments, thanks !
> 1. Can an import connection be wired to an installed (not resolved)
No
Bundle status will be changes to resolved automatically from installed
when it's export package was used by any of the bundles including it's
activator. So no bundle will export package while in installed status.

> that " Bundle B resolved, Bundle A resloved". I wonder when the resolve
> action will occured ? Will Felix check whether all the installed bundle
When one of bundle.start() was called.

> could be resolved once a new bundle is installed or resolved ?
Felix only automatically start bundle if it's exported package was
requested by other starting bundle.

-Guo

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Bundle Threads

2009-11-26T02:44:15Z

Hi,

Can anyone tell me please how can I know how much a bundle executes threads when it starts?
When I type "ps" command in my linux console I see multiple threads related to the JVM.
How can I know each thread belongs to each bundle.
Thanks in advance for your help.

Asma

Bundle resolve policy in Felix

2009-11-25T18:49:17Z

Hi,
While trying the Felix as the OSGI runtime, I have some questions about
the resolve policy, please help to give some comments, thanks !
1. Can an import connection be wired to an installed (not resolved)
bundle ? I found there is description in the spec 3.7, which says "A
resolved exporter must be preferred over an unresolved exporter.". So does
it mean that the answer is yes ?
2. I have a bunlde A and bundle B, bundle A needs to import some packages
from bundle B. But my installation order is that first A, then B. From the
log messages, I could see after installing A, FelixDispatchQueue said that
bunldle A is in the installed state. Then I install B, the messages showed
that " Bundle B resolved, Bundle A resloved". I wonder when the resolve
action will occured ? Will Felix check whether all the installed bundle
could be resolved once a new bundle is installed or resolved ?
3. Related to question 2, if I have ten bundles and I am sure that each
bundle could find export packages from other nine bundles. But I do not
install them according to their dependency relations. Then, will the logic
below work correctly ? In my tests, it seems that they could work correctly.
String[] locations = {......};
Bundle[] bundles = new Bundles[locations.length];
for(int i=0;i<locations.length;i++) {
bundles[i] = bundleContext.installBundle(locations[i]);
}
for(Bundle b : bundles) {
b.start();
}
Ivan

Anyone seen ConcurrentModificationException in karaf?

2009-11-25T09:07:58Z

java.util.ConcurrentModificationException

at java.util.HashMap$HashIterator.nextEntry(HashMap.java:793)

at java.util.HashMap$EntryIterator.next(HashMap.java:834)

at java.util.HashMap$EntryIterator.next(HashMap.java:832)

at
org.apache.felix.karaf.features.internal.FeaturesServiceImpl.saveMap(Fea
turesServiceImpl.java:534)

at
org.apache.felix.karaf.features.internal.FeaturesServiceImpl.saveState(F
eaturesServiceImpl.java:485)

at
org.apache.felix.karaf.features.internal.FeaturesServiceImpl$1.run(Featu
resServiceImpl.java:428)

Re: JPA and OSGi

2009-11-25T06:38:01Z

I agree with Ben, the Dynamic Java stuff is a good option.
You could also take a look at EclipseLink. It's what I use
in my projects.

http://www.eclipse.org/eclipselink/

Best,
Andreas

On Nov 25, 2009, at 9:32 AM, Ben Coughlan wrote:

> Hi Craig,
>
> Have a look at Dynamic Java's JPA bundle:
> http://dynamicjava.org/projects/dynamic-jpa
>
> I've had some success with it in the past and it works some of the power of OSGi into JPA.
>
> Valery does a really good job providing examples and it's well worth having a look at some his other projects on the site.
>
> Regards,
> Ben Coughlan
>
> On 26/11/2009, at 1:21 AM, Craig Ricciuto wrote:
>
>> Hi. I've been trying for the past couple of days to get any kind of simple
>> example project working that uses JPA in an OSGi bundle being built with
>> Maven 2.
>>
>> I've tried searching to my hearts content. I've even searched this mailing
>> list and any similar questions were answered with links I've already looked
>> at. The main two links I see the most being:
>> http://lsd.luminis.nl/jpa-persistence-in-osgi-with-openjpa/
>> http://lsd.luminis.nl/persistence-in-osgi-with-openjpa-part-2/
>>
>> Now I know these are good resources but I'm still new to using OSGi and
>> those links don't use Maven but instead Ant, which I've never used before
>> except to try to build the projects that are linked on those two pages. Is
>> there anyone on here that could show me a Maven example using JPA in an OSGi
>> bundle (I'm using the Apache Felix Maven Bundle plugin to build the bundle).
>>
>> Craig
>

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Re: JPA and OSGi

2009-11-25T06:32:54Z

Hi Craig,

Have a look at Dynamic Java's JPA bundle:
http://dynamicjava.org/projects/dynamic-jpa

I've had some success with it in the past and it works some of the power of OSGi into JPA.

Valery does a really good job providing examples and it's well worth having a look at some his other projects on the site.

Regards,
Ben Coughlan

On 26/11/2009, at 1:21 AM, Craig Ricciuto wrote:

> Hi. I've been trying for the past couple of days to get any kind of simple
> example project working that uses JPA in an OSGi bundle being built with
> Maven 2.
>
> I've tried searching to my hearts content. I've even searched this mailing
> list and any similar questions were answered with links I've already looked
> at. The main two links I see the most being:
> http://lsd.luminis.nl/jpa-persistence-in-osgi-with-openjpa/
> http://lsd.luminis.nl/persistence-in-osgi-with-openjpa-part-2/
>
> Now I know these are good resources but I'm still new to using OSGi and
> those links don't use Maven but instead Ant, which I've never used before
> except to try to build the projects that are linked on those two pages. Is
> there anyone on here that could show me a Maven example using JPA in an OSGi
> bundle (I'm using the Apache Felix Maven Bundle plugin to build the bundle).
>
> Craig

JPA and OSGi

2009-11-25T06:21:41Z

Hi. I've been trying for the past couple of days to get any kind of simple
example project working that uses JPA in an OSGi bundle being built with
Maven 2.

I've tried searching to my hearts content. I've even searched this mailing
list and any similar questions were answered with links I've already looked
at. The main two links I see the most being:
http://lsd.luminis.nl/jpa-persistence-in-osgi-with-openjpa/
http://lsd.luminis.nl/persistence-in-osgi-with-openjpa-part-2/

Now I know these are good resources but I'm still new to using OSGi and
those links don't use Maven but instead Ant, which I've never used before
except to try to build the projects that are linked on those two pages. Is
there anyone on here that could show me a Maven example using JPA in an OSGi
bundle (I'm using the Apache Felix Maven Bundle plugin to build the bundle).

Craig

Re: Resource Management

2009-11-24T15:27:53Z

>
> I guess the closest thing to that would be
> http://www.osgi.org/Research/HomePag<http://www.osgi.org/Research/HomePage>
>

I see my wish has come true!

=o)

RE: Resource Management

2009-11-24T15:25:59Z

> Date: Tue, 24 Nov 2009 21:10:23 -0200
> Subject: Re: Resource Management
> From: rodrigo.madera@...
> To: users@...
>
> On Tue, Nov 24, 2009 at 12:55 PM, Kiev Gama <kievgama@...> wrote:
>
> >
> > Hello,
> >
> > You do not have such fine grained control with bundles very easily.
> > This master's thesis may interest you:
> > "Resource monitoring and visualization of OSGi-based software components"
> > http://www.vtt.fi/inf/pdf/publications/2008/P685.pdf
> >
> >
> Excellent paper indeed.
>
> I wish there was a central wiki page with references to such academic works
> related to OSGi.
>

I guess the closest thing to that would be http://www.osgi.org/Research/HomePage

Kiev

> Regards,
> Madera

_________________________________________________________________
Windows Live: Keep your friends up to date with what you do online.
http://www.microsoft.com/middleeast/windows/windowslive/see-it-in-action/social-network-basics.aspx?ocid=PID23461::T:WLMTAGL:ON:WL:en-xm:SI_SB_1:092010

Re: Resource Management

2009-11-24T15:10:23Z

On Tue, Nov 24, 2009 at 12:55 PM, Kiev Gama <kievgama@...> wrote:

>
> Hello,
>
> You do not have such fine grained control with bundles very easily.
> This master's thesis may interest you:
> "Resource monitoring and visualization of OSGi-based software components"
> http://www.vtt.fi/inf/pdf/publications/2008/P685.pdf
>
>
Excellent paper indeed.

I wish there was a central wiki page with references to such academic works
related to OSGi.

Regards,
Madera

Re: Passing information (java parameters) to Felix

2009-11-24T11:57:39Z

On 11/24/09 14:09, André Lage wrote:

> Hello!
>
> I've tried to run a bundle on Felix with no success. This bundle needs
> to tell Java some details about it. For instance, as a simple Java
> class, I run it like this:
>
> java \
> -cp "$SAGA_CLASSPATH:$CLASSPATH" \
>
> -Djava.endorsed.dirs=$JAVA_SAGA_LOCATION/lib/adaptors/GridsamAdaptor/endorsed:$JAVA_SAGA_LOCATION/lib/endorsed
> \
> -Dlog4j.configuration="file:$JAVA_SAGA_LOCATION/log4j.properties" \
> -Dsaga.factory="eu.xtreemos.xosaga.bootstrap.MetaFactory" \
> -Dsaga.location="$JAVA_SAGA_LOCATION" \
> MyClassIWannaRun
>
> In Felix, I don't know how to "put" this information. I've tried to
> add it in the config.properties file further packages but it didn't
> solve the issue. I've also done a bunch of bundles from all jars that
> my app/bundle needs by using the bnd tool
> (http://www.aqute.biz/Code/Bnd).
>
> So that's what *I think* it is happening. I have no classpath problems
> since the libs are now bundles that export their packages. However, I
> don't tell Felix about the configuration I need (java.endorsed.dirs,
> log4j.configuration, saga.factory and saga.location).
>
> Finally, I had the "great" idea of running Felix as follows:
>
> java \
> -cp "$SAGA_CLASSPATH:$CLASSPATH" \
>
> -Djava.endorsed.dirs=$JAVA_SAGA_LOCATION/lib/adaptors/GridsamAdaptor/endorsed:$JAVA_SAGA_LOCATION/lib/endorsed
> \
> -Dlog4j.configuration="file:$JAVA_SAGA_LOCATION/log4j.properties" \
> -Dsaga.factory="eu.xtreemos.xosaga.bootstrap.MetaFactory" \
> -Dsaga.location="$JAVA_SAGA_LOCATION" \
> -jar bin/felix.jar
>
> Even though Felix runs, I think it ignores those parameters --
> actually Felix behaves the same with or without those parameters.

If you use "-jar" then "-cp" is ignored. If you want to set the class
path, then you will need to do something like:

java -cp felix.jar;stuff.jar org.apache.felix.main.Main

This should start the framework with the specified class path.

> Does anybody have any idea of how to tell Felix about those parameters?

Felix would never do anything with the "-D" arguments, since they are
used by the JVM to set system properties. The above command should set
them correctly, though, so your bundles should be able to see them using
System.getProperty().

You can also set system properties in conf/system.properties as a
convenience.

-> richard

>
>
> Thanks in advance,
>
>
> André Lage.
>
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Passing information (java parameters) to Felix

2009-11-24T11:09:52Z

Hello!

I've tried to run a bundle on Felix with no success. This bundle needs
to tell Java some details about it. For instance, as a simple Java
class, I run it like this:

java \
-cp "$SAGA_CLASSPATH:$CLASSPATH" \

-Djava.endorsed.dirs=$JAVA_SAGA_LOCATION/lib/adaptors/GridsamAdaptor/endorsed:$JAVA_SAGA_LOCATION/lib/endorsed
\
-Dlog4j.configuration="file:$JAVA_SAGA_LOCATION/log4j.properties" \
-Dsaga.factory="eu.xtreemos.xosaga.bootstrap.MetaFactory" \
-Dsaga.location="$JAVA_SAGA_LOCATION" \
MyClassIWannaRun

In Felix, I don't know how to "put" this information. I've tried to add
it in the config.properties file further packages but it didn't solve
the issue. I've also done a bunch of bundles from all jars that my
app/bundle needs by using the bnd tool (http://www.aqute.biz/Code/Bnd).

So that's what *I think* it is happening. I have no classpath problems
since the libs are now bundles that export their packages. However, I
don't tell Felix about the configuration I need (java.endorsed.dirs,
log4j.configuration, saga.factory and saga.location).

Finally, I had the "great" idea of running Felix as follows:

java \
-cp "$SAGA_CLASSPATH:$CLASSPATH" \

-Djava.endorsed.dirs=$JAVA_SAGA_LOCATION/lib/adaptors/GridsamAdaptor/endorsed:$JAVA_SAGA_LOCATION/lib/endorsed
\
-Dlog4j.configuration="file:$JAVA_SAGA_LOCATION/log4j.properties" \
-Dsaga.factory="eu.xtreemos.xosaga.bootstrap.MetaFactory" \
-Dsaga.location="$JAVA_SAGA_LOCATION" \
-jar bin/felix.jar

Even though Felix runs, I think it ignores those parameters -- actually
Felix behaves the same with or without those parameters.

Does anybody have any idea of how to tell Felix about those parameters?

Thanks in advance,

André Lage.

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Re: Execution environment problems

2009-11-24T09:04:03Z

I believe the issue is that you need to manually set in the
configuration properties which EE the Felix framework is running on,
since it doesn't do any sort of auto-detection.

-> richard

On 11/24/09 11:59, Nick Wilson wrote:

> I'm doing some experiments with an embedded Felix container running
> under different execution environments. Running under Java 5
> (jdk1.5.0_12) I tried to install a bundle with a required execution
> environment set to "JavaSE-1.6" in the hope that it would fail.
>
> The following exception was logged:
>
> WARNING: org.osgi.framework.BundleException: Unable to cache bundle:
> null
> at
> org.apache.felix.framework.Felix.installBundle(Felix.java:2321)
> at
> org.apache.felix.framework.Felix.installBundle(Felix.java:2277)
> at
> org.apache.felix.framework.BundleContextImpl.installBundle(BundleContext
> Impl.java:130)
> ...
>
> Caused by: java.lang.NullPointerException
> at
> org.apache.felix.framework.cache.BundleArchive.initialize(BundleArchive.
> java:874)
> at
> org.apache.felix.framework.cache.BundleArchive.<init>(BundleArchive.java
> :144)
> at
> org.apache.felix.framework.cache.BundleCache.create(BundleCache.java:176
> )
> at
> org.apache.felix.framework.Felix.installBundle(Felix.java:2317)
> ... 32 more
>
> However, that exception was then eaten, installBundle didn't throw
> anything, so my code then carried on running. The Bundle object is
> returned and has the state Bundle.INSTALLED. It is also listed in a call
> to felix.getBundleContext().getBundles(). Any attempt to use it rightly
> results in:
>
> java.lang.UnsupportedClassVersionError: Bad version number in .class
> file
>
> It looks to me like the install is succeeding where it should realy
> fail.
>
> Nick
>
>
>
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> For additional commands, e-mail: users-help@...
>
>

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Execution environment problems

2009-11-24T08:59:48Z

I'm doing some experiments with an embedded Felix container running
under different execution environments. Running under Java 5
(jdk1.5.0_12) I tried to install a bundle with a required execution
environment set to "JavaSE-1.6" in the hope that it would fail.

The following exception was logged:

WARNING: org.osgi.framework.BundleException: Unable to cache bundle:
null
at
org.apache.felix.framework.Felix.installBundle(Felix.java:2321)
at
org.apache.felix.framework.Felix.installBundle(Felix.java:2277)
at
org.apache.felix.framework.BundleContextImpl.installBundle(BundleContext
Impl.java:130)
...

Caused by: java.lang.NullPointerException
at
org.apache.felix.framework.cache.BundleArchive.initialize(BundleArchive.
java:874)
at
org.apache.felix.framework.cache.BundleArchive.<init>(BundleArchive.java
:144)
at
org.apache.felix.framework.cache.BundleCache.create(BundleCache.java:176
)
at
org.apache.felix.framework.Felix.installBundle(Felix.java:2317)
... 32 more

However, that exception was then eaten, installBundle didn't throw
anything, so my code then carried on running. The Bundle object is
returned and has the state Bundle.INSTALLED. It is also listed in a call
to felix.getBundleContext().getBundles(). Any attempt to use it rightly
results in:

java.lang.UnsupportedClassVersionError: Bad version number in .class
file

It looks to me like the install is succeeding where it should realy
fail.

Nick

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RE: Resource Management

2009-11-24T07:35:58Z

Thanks a lot, that seems very interesting.

Best Regards,
Asma Chihi

--- En date de : Mar 24.11.09, Kiev Gama <kievgama@...> a écrit :

De: Kiev Gama <kievgama@...>
Objet: RE: Resource Management
À: users@...
Date: Mardi 24 Novembre 2009, 15h55

Hello,

You do not have such fine grained control with bundles very easily.
This master's thesis may interest you:
"Resource monitoring and visualization of OSGi-based software components"
http://www.vtt.fi/inf/pdf/publications/2008/P685.pdf

Regards,
Kiev Gama

> Date: Tue, 24 Nov 2009 09:48:04 +0000
> From: chihi_asma@...
> Subject: Resource Management
> To: users@...
>
> Hi,
>
> I want to know if there is any bundle which implements a resource management mecanism such as CPU time usage, memory consumption??
> Thanks in advance
>
> Asma
>
>
>
>

_________________________________________________________________
Windows Live: Make it easier for your friends to see what you’re up to on Facebook.
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RE: Resource Management

2009-11-24T06:55:55Z

Hello,

You do not have such fine grained control with bundles very easily.
This master's thesis may interest you:
"Resource monitoring and visualization of OSGi-based software components"
http://www.vtt.fi/inf/pdf/publications/2008/P685.pdf

Regards,
Kiev Gama

Re: The source code of the base driver felix

2009-11-24T02:30:41Z

Hello,

you can find the sources of the modifies Cybergarage stack (CyberDomo)
in maven central repository
http://repo1.maven.org/maven2/it/cnr/isti/domoware/cyberdomo/upnp-stack/1.8.0/.

Best regards,
francesco

abidi imen ha scritto:

> I have this code source but i can't compile it,
> Please haw I can compile it ? and i want to know if the source code of the
> stack Cybergarage modified by felix is available.
> Thanks in advance
>
> 2009/11/24 abidi imen <abidi.imen85@...>
>
>
>> yes I'm refering to the UPnP Base Driver, sorry
>> Thanks a lot
>>
>> 2009/11/24 peter lawrey <peter.lawrey@...>
>>
>> All the source for Felix is documented here
>>
>>> http://felix.apache.org/site/source-code.html
>>>
>>> Are you referring to the UPnP Base Driver?
>>>
>>> -----Original Message-----
>>> From: abidi imen [mailto:abidi.imen85@...]
>>> Sent: 24 November 2009 08:19
>>> To: users@...
>>> Subject: The source code of the base driver felix
>>>
>>> Hello,
>>> Please, I want to compile the Base Driver so I need his source code,
>>> is any one who can give me it?
>>> Thanks in advance.
>>>
>>> ---------------------------------------------------------------------
>>> To unsubscribe, e-mail: users-unsubscribe@...
>>> For additional commands, e-mail: users-help@...
>>>
>>>
>>>
>
>

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Resource Management

2009-11-24T01:48:04Z

Hi,

I want to know if there is any bundle which implements a resource management mecanism such as CPU time usage, memory consumption??
Thanks in advance

Asma

Re: The source code of the base driver felix

2009-11-24T01:06:57Z

I have this code source but i can't compile it,
Please haw I can compile it ? and i want to know if the source code of the
stack Cybergarage modified by felix is available.
Thanks in advance

2009/11/24 abidi imen <abidi.imen85@...>

> yes I'm refering to the UPnP Base Driver, sorry
> Thanks a lot
>
> 2009/11/24 peter lawrey <peter.lawrey@...>
>
> All the source for Felix is documented here
>> http://felix.apache.org/site/source-code.html
>>
>> Are you referring to the UPnP Base Driver?
>>
>> -----Original Message-----
>> From: abidi imen [mailto:abidi.imen85@...]
>> Sent: 24 November 2009 08:19
>> To: users@...
>> Subject: The source code of the base driver felix
>>
>> Hello,
>> Please, I want to compile the Base Driver so I need his source code,
>> is any one who can give me it?
>> Thanks in advance.
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: users-unsubscribe@...
>> For additional commands, e-mail: users-help@...
>>
>>
>

Re: The source code of the base driver felix

2009-11-24T00:58:52Z

yes I'm refering to the UPnP Base Driver, sorry
Thanks a lot

2009/11/24 peter lawrey <peter.lawrey@...>

> All the source for Felix is documented here
> http://felix.apache.org/site/source-code.html
>
> Are you referring to the UPnP Base Driver?
>
> -----Original Message-----
> From: abidi imen [mailto:abidi.imen85@...]
> Sent: 24 November 2009 08:19
> To: users@...
> Subject: The source code of the base driver felix
>
> Hello,
> Please, I want to compile the Base Driver so I need his source code,
> is any one who can give me it?
> Thanks in advance.
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@...
> For additional commands, e-mail: users-help@...
>
>

RE: The source code of the base driver felix

2009-11-24T00:38:21Z

All the source for Felix is documented here
http://felix.apache.org/site/source-code.html

Are you referring to the UPnP Base Driver?

-----Original Message-----
From: abidi imen [mailto:abidi.imen85@...]
Sent: 24 November 2009 08:19
To: users@...
Subject: The source code of the base driver felix

Hello,
Please, I want to compile the Base Driver so I need his source code,
is any one who can give me it?
Thanks in advance.

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The source code of the base driver felix

2009-11-24T00:18:51Z

Hello,
Please, I want to compile the Base Driver so I need his source code,
is any one who can give me it?
Thanks in advance.

RE: fileinstall

2009-11-23T16:02:17Z

Let me clarify... the fileinstall instance is removed, but not the bundles / instances that it was monitoring.

This may simply be something I would have to add as an option if I wanted the ability to install/deploy and uninstall/undeploy groups of bundles together with one cfg file monitored by another fileinstall instance.

- Joel

-----Original Message-----
From: Joel Schuster [mailto:joels@...]
Sent: Monday, November 23, 2009 4:45 PM
To: users@...
Subject: fileinstall

I have a fileinstall cfg file that points to another directory with more file install cfg files:

org.apache.felix.fileinstall-config.cfg

felix.fileinstall.poll=2000
felix.fileinstall.dir=config
felix.fileinstall.debug=1
felix.fileinstall.filter=.*\\.cfg
felix.fileinstall.bundles.new.start=true

like this one:

org.apache.felix.fileinstall-dosgi.cfg

felix.fileinstall.poll=2000
felix.fileinstall.dir=lib/dosgi
felix.fileinstall.debug=1
felix.fileinstall.filter=.*\\.jar
felix.fileinstall.bundles.new.start=true

which works great on startup. The config directory is monitored and the cfg files loaded and used, in this case dosgi is started. However, the when the cfg files are deleted from the monitored directory the bundles are not un-deployed.

Is this a known bug with file installer?

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fileinstall

2009-11-23T15:44:48Z

I have a fileinstall cfg file that points to another directory with more file install cfg files:

org.apache.felix.fileinstall-config.cfg

felix.fileinstall.poll=2000
felix.fileinstall.dir=config
felix.fileinstall.debug=1
felix.fileinstall.filter=.*\\.cfg
felix.fileinstall.bundles.new.start=true

like this one:

org.apache.felix.fileinstall-dosgi.cfg

felix.fileinstall.poll=2000
felix.fileinstall.dir=lib/dosgi
felix.fileinstall.debug=1
felix.fileinstall.filter=.*\\.jar
felix.fileinstall.bundles.new.start=true

which works great on startup. The config directory is monitored and the cfg files loaded and used, in this case dosgi is started. However, the when the cfg files are deleted from the monitored directory the bundles are not un-deployed.

Is this a known bug with file installer?

Re: Integrate log4j

2009-11-23T04:38:22Z

1) On the ps command I see all bundles are installed and active:
-> ps
START LEVEL 1
   ID   State         Level Name
[   0] [Active     ] [    0] System Bundle (2.0.1)
[   1] [Resolved   ] [    1] HelloWorld Plug-in (1.0.0)
[   2] [Active     ] [    1] Apache Commons Logging Plug-in (1.1.1.v200904062255)
[   3] [Active     ] [    1] Apache Felix Bundle Repository (1.4.2)
[   4] [Active     ] [    1] Apache Felix Shell Service (1.4.1)
[   5] [Active     ] [    1] Apache Felix Shell TUI (1.4.1)
[   6] [Active     ] [    1] Apache Jakarta log4j Plug-in (1.2.15.v200910021404)

2) I have downloaded the log4j bundle from Orbit Download
3) how can I check is my log4j bundle exports the classes I need?
In the jar archive I see that all the classes are there...

Thank you,
Laura C.

--- On Thu, 11/19/09, Filippo Diotalevi <filippo.diotalevi@...> wrote:

On Thu, Nov 19, 2009 at 2:33 PM, Cobarzan Laura <clsimona@...> wrote:
> Hello,
>
> I have a simple Hello World project that uses the log4j library. What is strange is that the log4j bundle is installed and started without any problems, but it through errors saying that it cannot find the needed class (from log4j) library.
> Did anyone faced already this problem?

Hi,
it's difficult to say what's going wrong in your case, since log4j
works well in any OSGi environment.

A few questions to get started:
1) can you open the console and type "ps" ? The command displays the
list of installed bundles. Is the log4j bundle installed and active?
2) where did you get the log4j bundle? Is it really an OSGi bundle or
just the normal Java library?
3) can you check with the console if your log4j bundle export the
"org/apache/log4j" package?

Regards,
--
Filippo Diotalevi

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