Re: Enforcing mandatory components for an application
On Tue, Oct 12, 2021 at 11:59 PM Neil Bartlett wrote: > ...But you are building a closed > world with a well-defined set of bundles. As the application assembler you > know that there will never be another bundle to come along and save the day... In such cases, I think having a PERMANENT_FAILURE state for services would be useful, and that's where you would decide to give up. I don't think there's such a concept for OSGI services, if I had to implement that I would probably implement my own "failed services registry" where services can indicate that they're hopelessly dead. Each service can then decide on their own when that happens, probably based on service-specific timeouts. -Bertrand - To unsubscribe, e-mail: users-unsubscr...@felix.apache.org For additional commands, e-mail: users-h...@felix.apache.org
Re: Automatically update bundles
Hi, On Mon, Aug 4, 2014 at 5:34 PM, Tim McIver wrote: > ...I've begun writing code that gets the symbolic > name of any installed plugin, then uses this to get all Resources with a > given symbolic name from the external OBR. Next, I would see if any of > these Resources are a more recent version of what's installed. Finally, > I need the framework to use these newer bundles instead of the old > ones... The Sling installer might help. I'm not sure if anyone uses it outside of Sling at the moment, but AFAIK the core is independent from Sling. See http://sling.apache.org/documentation/bundles/osgi-installer.html and you're welcome to ask on the Sling users list [1] for more details. -Bertrand [1] http://sling.apache.org/project-information.html#mailing-lists - To unsubscribe, e-mail: users-unsubscr...@felix.apache.org For additional commands, e-mail: users-h...@felix.apache.org
Re: How to use a service immediately after its activation?
Hi Peter,
Thanks for the detailed explanation!
On Sun, Mar 23, 2014 at 4:57 PM, Peter Kriens wrote:
> ...The beauty of it all is that with DS you can override the reference target
> filters. So in the case you cannot change the client,
> you set the Foo.target configuration property to the desired filter...
I guess that's where I'm missing a bit, so assuming you have
@Service(property="state=migrated")
public class FooMigrator implements Foo {
...as in your example
}
You seem to imply that I can configure DS so that a client that has:
@Reference
void setFoo(Foo f) { this.f=f; }
Without any state filter actually gets the Foo service that has
state=migrated instead of the one that has no state property.
If that's correct, how is that setup?
-Bertrand
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Re: How to use a service immediately after its activation?
Hi Peter, On Thu, Mar 20, 2014 at 4:32 PM, Peter Kriens wrote: > ...The migrator depends on the raw service and registers a delegate service > after it has > migrated the database. You can easily make a pipeline like this. A simple > service property > will do the trick. In DS it is easy to use the target filter (that can be set > by config admin > so you code is ignorant of the fact) to manage the pipeline. > > db -> migrator -> client ... Looks very cool, I agree. But how do you hide the raw db service from existing clients that currently get it via an @Reference annotation with no specific filter? My understanding is that a DS client that does not specify a filter will get the first service that provides the corresponding interface, so as soon as the raw db is available, those clients will see it. I'm probably missing something...by "can be set by config admin" do you mean that I can setup a default filter so that clients with no filter only see the delegate service that the migrator registers, because that delegate will have something like a visibleTo=allClients service property? > ...In general you make things surprisingly complex once you step outside the > standard service dependency model Absolutely agree, so if your suggestion works without any changes to existing clients that's fantastic. -Bertrand - To unsubscribe, e-mail: users-unsubscr...@felix.apache.org For additional commands, e-mail: users-h...@felix.apache.org
Re: How to use a service immediately after its activation?
Hi, On Tue, Mar 18, 2014 at 10:22 PM, Neil Bartlett wrote: > ...Whatever you're trying to do in your special listener, wouldn't it be > better done inside the same bundle as the service?... You're right, and this is similar to what Bruce suggests - the bundle's initialization code can look for initializer services using a whiteboard pattern, and call them before making the actual service available. To answer Marcel's question about the use case, the app in question is Sling-based and uses a content repository service. When upgrading the app you might need to make some changes to the content before the new version of the app starts working with the content repository. So yes, making this part of the content repository service design makes absolute sense. David B's hooks suggestion also looks interesting, as a generic way of talking to services early in the setup phase. Thanks everybody for the pointers! -Bertrand - To unsubscribe, e-mail: users-unsubscr...@felix.apache.org For additional commands, e-mail: users-h...@felix.apache.org
Re: How to use a service immediately after its activation?
Hi, On Tue, Mar 18, 2014 at 7:24 PM, David Jencks wrote: > ...If you have a DS component with a reference to your desired service, with > a bind method, > the bind method will be called at some point when the desired service is > available, > whether the service or your component starts first... Ah yes, of course...this makes me realize that what I'm actually looking for is a way for my code to interact with the service before DS components even see it, if that's possible. So it looks like my core question is whether the framework or DS provide a "service is about to be made available" hook - is there such a thing? Barring that I guess my best option is to use a specific start level to run my piece of code in the appropriate startup phase. -Bertrand - To unsubscribe, e-mail: users-unsubscr...@felix.apache.org For additional commands, e-mail: users-h...@felix.apache.org
How to use a service immediately after its activation?
Hi, I'd like to interact with a given service as soon as it is created, ideally before other clients use it. Is it safe to use a service in the ServiceListener.serviceChanged(ServiceReference R) method, grabbing it from R? I suppose there's no way to prioritize a given ServiceListener, but at least my code would run as soon as the service becomes available. Or is there a better way? -Bertrand
Re: OSGi Bundle Repository (How to host them on a server)?
On Tue, Dec 3, 2013 at 12:03 AM, Elliot Huntington wrote: > http://stackoverflow.com/questions/20337818/osgi-bundle-repositories-how-to-host-them-on-a-server This sounds like Apache ACE, http://ace.apache.org/ -Bertrand - To unsubscribe, e-mail: users-unsubscr...@felix.apache.org For additional commands, e-mail: users-h...@felix.apache.org
Re: declarative Services
Hi, On Sat, Jun 1, 2013 at 12:10 AM, bokie wrote: > I'm quite comfortable with OSGi and Felix but have I've never used > Declarative Services. I've started reading up on the topic and started to > ask my self some questions... I'm going to shamelessly plug my small example app at https://github.com/bdelacretaz/OSGi-for-mere-mortals - I think it demonstrates how DS simplifies OSGi, including ConfigurationAdmin. The Dependency Manager is totally invisible to the programmer in that example, and that's a good thing IMO. Apache Sling is also extensively based on DS, and we're very happy with the results - if you want concrete examples you could have a look as well (but that's a fairly large codebase). -Bertrand - To unsubscribe, e-mail: users-unsubscr...@felix.apache.org For additional commands, e-mail: users-h...@felix.apache.org
Re: Safe to retain references to OSGi bundles?
On Thu, Apr 18, 2013 at 3:24 PM, Robert Munteanu wrote: > ...The reason I need to hold on to the bundle is to load classes using that > its classloader > at a later point in time... Can't you do that using getClass().getClassLoader() on a class that's inside that bundle? I *think* keeping references to Bundle objects is fine if you track them with a BundleTracker, but that sounds somewhat complicated. -Bertrand - To unsubscribe, e-mail: users-unsubscr...@felix.apache.org For additional commands, e-mail: users-h...@felix.apache.org
Re: Shutdown deadlock on OS X while doing AWT stuff
Hi,
On Tue, Mar 5, 2013 at 2:15 PM, Dan Gravell
wrote:
> ...Stopping the
> bundles has the effect of calling:
>
> @Deactivate def shutdown() {
> awt.SystemTray.getSystemTray.getTrayIcons.foreach(systemTray.remove);
> ...
It's been a long time since I did any AWT...shouldn't that be called
with EventQueue.invokeAndWait(...) to avoid trouble with the AWT
events queue thread?
-Bertrand
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Re: Permission to translate your page at http://felix.apache.org/
Hi, On Thu, Feb 28, 2013 at 7:36 PM, Anja Skrba wrote: > ...I would be grateful if you could allow me to translate your writing into > Serbo-Croatian language, that is used in all Former Yugoslav Republics and > to post it on my website... >From the foundation's point of view, this is cool as long as your website makes it clear that it is not associated with or endorsed by the Apache Software Foundation - http://www.apache.org/foundation/marks/ has some more info. As long as you keep to true facts such as "this is my own translation of the Apache Felix documentation" as opposed to "this is the Serbo-Croatian documentation of Apache Felix", and link to the original documentation, you're fine, and it's a great way to spread the word! -Bertrand - To unsubscribe, e-mail: users-unsubscr...@felix.apache.org For additional commands, e-mail: users-h...@felix.apache.org
Re: Configuration Admin service example?
Hi, On Tue, Apr 26, 2011 at 4:46 PM, Cristiano Gavião wrote: > ...I found maven-scr-plugin annotation very interesting and easy... > > Now I'm trying figuring out how I could inject properties from a config file > on the service using DS... The Felix file installer ( http://felix.apache.org/site/apache-felix-file-install.html ) does this. -Bertrand - To unsubscribe, e-mail: users-unsubscr...@felix.apache.org For additional commands, e-mail: users-h...@felix.apache.org
Re: Configuration Admin service example?
Hi, On Tue, Apr 26, 2011 at 12:03 AM, Cristiano Gavião wrote: > I would like to use Configuration Admin Service with Declared Service. > But I > couldn't find yet a updated tutorial with a good example If your goal is to create Declarative Services that have configuration parameters, the maven-scr-plugin [1] makes things very easy. See [2] for an example which uses a number of @Property annotations for configurable parameters. -Bertrand [1] http://felix.apache.org/site/apache-felix-maven-scr-plugin.html [2] http://svn.apache.org/repos/asf/sling/trunk/bundles/engine/src/main/java/org/apache/sling/engine/impl/SlingMainServlet.java - To unsubscribe, e-mail: users-unsubscr...@felix.apache.org For additional commands, e-mail: users-h...@felix.apache.org
Re: Alternative to Tycho using Felix
Hi Benoît, 2011/4/14 Benoît Thiébault : > ...I am currently working on a project that is managed by Maven as a > multi-modules project, each module representing an OSGi bundle. What I would > like to do is to automatically generate a distributable packaging of the > project for each targeted platform. In this packaging, I would like to have > one executable (in the form of a sh scripton Linux for instance) that would > launch felix for instance, install and start all the required bundles. > > Is there such a tool ? What are the best practices to package OSGi > applications ?... We have something like that in Sling - our maven-launchpad-plugin [1] takes a list of bundles, gets them from a Maven repository and can produce a runnable jar, a war file and a karaf descriptor. It doesn't produce a Linux script for example, but turning an executable jar into that is not too hard. See [2] for a concrete example, and ask on us...@sling.apache.org for more info. -Bertrand [1] http://sling.apache.org/site/maven-launchpad-plugin.html [2] http://svn.apache.org/repos/asf/sling/trunk/launchpad/builder - To unsubscribe, e-mail: users-unsubscr...@felix.apache.org For additional commands, e-mail: users-h...@felix.apache.org
Re: Unable to acquire global lock for resolve
Hi, On Wed, Sep 29, 2010 at 6:59 PM, wrote: > ...Error executing command: Could not start bundle > mvn:org.dom4j/com.springsource.org.dom4j/1.6.1 in feature(s): > Unresolved constraint in bundle com.springsource.org.dom4j [59]. Unable to > acquire global lock for resolve I've had a similar problem in some new Sling integration tests, details in SLING-2009 In my case the integration tests are adding and starting bundles via the webconsole's http interface, shortly after starting up the framework - might indicate a conflict between the webconsole and other Sling modules calling framework operations. -Bertrand - To unsubscribe, e-mail: users-unsubscr...@felix.apache.org For additional commands, e-mail: users-h...@felix.apache.org
Re: pax exam and felix
On Sun, Feb 27, 2011 at 7:04 PM, teemu kanstren wrote: > I have been trying to learn to use Pax Exam with Felix but without much > success... FWIW we do use Pax Exam with Felix in Sling, see for example http://svn.apache.org/repos/asf/sling/trunk/installer/it but that might not use the very latest versions of those tools. -Bertrand - To unsubscribe, e-mail: users-unsubscr...@felix.apache.org For additional commands, e-mail: users-h...@felix.apache.org
Re: JUnit in Felix OSGI
Hi, On Thu, Jan 27, 2011 at 9:06 PM, teemu kanstren wrote: >... -integration with the environment (Felix, external bundles) using a > programmatic setup of Felix and programmatic control of Felix/access to > bundlecontext, etc That's where pax exam would help you - we're using it in Sling, you can see an example at http://svn.apache.org/repos/asf/sling/trunk/installer/it -Bertrand - To unsubscribe, e-mail: users-unsubscr...@felix.apache.org For additional commands, e-mail: users-h...@felix.apache.org
Re: Swing-based OSGi management console
Hi, On Thu, Dec 2, 2010 at 1:45 PM, Daniel Faber wrote: > ...for a Swing-based desktop application with embedded OSGi framework I'm > looking for an OSGi management console. Something similar to the Felix > Web Console, but with Swing GUI instead of web interface. Are you aware > of such a project?... There's http://www.knopflerfish.org/desktop.html but I have no idea if and how well it works with Felix. -Bertrand - To unsubscribe, e-mail: users-unsubscr...@felix.apache.org For additional commands, e-mail: users-h...@felix.apache.org
Re: [ANN] Felix R4.2 certification
On Tue, Oct 26, 2010 at 3:54 PM, Richard S. Hall wrote: > On 10/26/10 9:36, Bertrand Delacretaz wrote: >> >> On Tue, Oct 26, 2010 at 3:17 PM, Richard S. Hall >> wrote: >>> >>> ...With sponsorship from Oracle, version 3.0.x of the Felix Framework and >>> version 1.4.x of the Framework Security Provider have been certified R4.2 >>> compliant... >> >> Very cool, but can you elaborate on the kind of sponsorship? > > In order for a framework to be certified compliant, an OSGi member company > must submit CT results and pay to have them certified by the OSGi Alliance. > Oracle sponsored Felix framework certification since it is used in > GlassFish Cool, thanks very much for clarifying! -Bertrand - To unsubscribe, e-mail: users-unsubscr...@felix.apache.org For additional commands, e-mail: users-h...@felix.apache.org
Re: [ANN] Felix R4.2 certification
On Tue, Oct 26, 2010 at 3:17 PM, Richard S. Hall wrote: > ...With sponsorship from Oracle, version 3.0.x of the Felix Framework and > version 1.4.x of the Framework Security Provider have been certified R4.2 > compliant... Very cool, but can you elaborate on the kind of sponsorship? With all the noises about Oracle and Java these days, it might be good to be more specific. Thanks, -Bertrand - To unsubscribe, e-mail: users-unsubscr...@felix.apache.org For additional commands, e-mail: users-h...@felix.apache.org
Re: PermGen Space and creating executable jars that require no special arguments
Hi Reto,
On Mon, Sep 13, 2010 at 10:51 AM, Reto Bachmann-Gmuer
wrote:
> ...clerezza always fails to be started without setting
> "-XX:MaxPermSize=128m". I'm wondering if there are ways to either
> reduce PermGen usage or otherwise make the jar executable without any
> special argument (as with a simple double click), starting a new
> forked vm from the executable jar with the option seems a bit awkward
I needed to set JVM arguments for executable jars in a $work project
and haven't found a better way than forking.
To minimize the ugliness of that, my jar only forks if started by
double-clicking it, in which case you don't have a console, detected
using
boolean noUnixConsole = System.getenv("TERM") == null;
boolean noWindowsConsole = System.getenv("PROMPT") == null;
noConsole = noUnixConsole && noWindowsConsole;
And if running on a console I use "-fork" to mean "fork and run with
same JVM params as if jar was double-clicked".
You then have to make sure both processes exit if one of them does or
is killed, IIRC this caused some trouble under Windows.
Far from ideal - if someone has found a better way please share it!
-Bertrand
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Re: Managing large Karaf projects with multiple bundles
On Fri, Aug 6, 2010 at 1:13 PM, Felix Meschberger wrote: > On 06.08.2010 12:41, Charles Moulliard wrote: >> If you don't want to use bundle start level, which solution do you use when >> you would like to start service or bundles in a specific order ? > > Point about the start level is, that it is more like an administrative > measure: A system administratore may for whatever reason decide to > assign whatever start levels to whatever bundles IMO a good reason is to emulate the unix run levels, where for example level 1 is "single user", so just a management console, level 5 is "web server active", level 10 is "application active" etc. - as you say, for system maintenance and testing purposes. Although start levels can be used to define bundles start order, I don't think they were meant for that - as Felix says the start order should be irrelevant. -Bertrand - To unsubscribe, e-mail: users-unsubscr...@felix.apache.org For additional commands, e-mail: users-h...@felix.apache.org
Re: Managing large Karaf projects with multiple bundles
Hi, On Thu, Aug 5, 2010 at 5:06 PM, wrote: > My project has about 130 different bundles, which appear to need to be > deployed in a specific > order because of thier dependencies Relying on bundles start order sounds bad, OSGi best practices should help avoid that. Using start levels can help you define the order in which your bundles start, but that will make management of your system much more complex than it should be. -Bertrand - To unsubscribe, e-mail: users-unsubscr...@felix.apache.org For additional commands, e-mail: users-h...@felix.apache.org
Re: Custom resolver
On Mon, Jul 26, 2010 at 9:28 AM, Sander de Groot wrote: > ...ACE looks promising, I'm going to take a look. > However, whats bothering me is that I didn't found this (these kind of) > product while searching on google. > It seems to me that I'm searching for the wrong keywords, mm, better > rephrase them OSGi's lingo is unusual sometimes, maybe due to its origins in embedded systems and (AFAIK) telecoms. I don't think I ever heard the word "provisioning" before starting to work with OSGi ;-) -Bertrand - To unsubscribe, e-mail: users-unsubscr...@felix.apache.org For additional commands, e-mail: users-h...@felix.apache.org
Re: Custom resolver
Hi, On Thu, Jul 22, 2010 at 10:33 AM, Sander de Groot wrote: > ...My context is as follows: I've a cluster of servers (OSGi) and I want to > deploy a new application to each of these servers. These new applications > however sometimes have dependencies which are not installed on the (OSGi) > server in question. In these cases I want the server to handle the missing > dependencies by looking in a central repository. If the dependency is found > then it should be installed if not: throw the unresolved dependencies > exception ACE might be helpful for this, http://incubator.apache.org/ace/ -Bertrand - To unsubscribe, e-mail: users-unsubscr...@felix.apache.org For additional commands, e-mail: users-h...@felix.apache.org
Re: How to check if a bundle is already installed?
On Wed, Apr 14, 2010 at 5:00 AM, Mahammad Nasir wrote: > > Thanks, I think this will solve my problem wherever I have symbolic name. I > have some places I have only bundle physical name. Is there any otherways to > check based on physical name?... The bundle filename you mean? There's Bundle.getLocation() but that does not change if the bundle is updated after being installed, see http://www.osgi.org/javadoc/r4v42/org/osgi/framework/Bundle.html#getLocation() - so you usually cannot rely on that. The Bundle-SymbolicName/Version combo is the only stable identifier AFAIK. -Bertrand - To unsubscribe, e-mail: users-unsubscr...@felix.apache.org For additional commands, e-mail: users-h...@felix.apache.org
Re: How to check if a bundle is already installed?
Hi,
On Tue, Apr 13, 2010 at 11:27 AM, Mahammad Nasir
wrote:
> ...How can i check if a bundle is already installed? i dint find any api to
> check if it is already installed...
you can do something like
String bundleSymbolicName = ...
Bundle[] bundles = bundleContext.getBundles();
for (Bundle bundle : bundles) {
if (bundleSymbolicName.equals(bundle.getSymbolicName())) {
return bundle;
}
}
-Bertrand
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Re: Webconsole hanging
Hi, On Fri, Feb 26, 2010 at 11:30 PM, John E. Conlon wrote: >> ka...@root> start 3 ... >> ka...@root> start 37 ... > After that I WAS able to connect to the webconsole. > > Start levels? Start levels shouldn't make a difference AFAIK, the console should work if started before or after the jetty bundle...looks like something's wrong between those two bundles, or maybe something else is registering a servlet on the same path as the web console, and getting in the way? -Bertrand - To unsubscribe, e-mail: users-unsubscr...@felix.apache.org For additional commands, e-mail: users-h...@felix.apache.org
Re: Webconsole hanging
Hi, On Fri, Feb 26, 2010 at 2:25 AM, John E. Conlon wrote: > Have been experiencing an intermittent hanging problem when I try to connect > to a felix web console. By hanging I mean - connecting to the url produces a > blank webpage - no errors just a blank page. Sometimes it works and other > times not (its around a 50% failure rate.) When I make a connection to a > newly started framework's webconsole and I get a hang the only thing I can > do is to restart the framework. (I am using Karaf with felix)... Could it be that your system is stuck in a loop like FELIX-1967 ? I've seen similar symptoms when experiencing that problem, the console appears to be stuck because it's waiting on locks that are held for a very long time due to Resolver.findConsistentClassSpace running in circles. If that's the case, thread dumps every few seconds would show that method active at various stages, and CPU usage would be high. -Bertrand - To unsubscribe, e-mail: users-unsubscr...@felix.apache.org For additional commands, e-mail: users-h...@felix.apache.org
Re: Default web app integration behavior
Hi, On Fri, Oct 9, 2009 at 2:01 PM, Edelson, Justin wrote: > ...I can look at creating some patches against Sling that do the following:... > * Add SNAPSHOT version support (i.e. always upgrade SNAPSHOTs)... Sling's OSGi installer module (similar to fileinstall, but using bundles from a JCR repository [1]) does this, and note that there's a small gotcha: always updating snapshots can slow down startup significantly if you have many bundles, which is suboptimal for testing. That module solves the problem by storing the modification dates of the snapshots, and not upgrading bundles if those dates don't change. -Bertrand [1] http://sling.apache.org/site/jcr-installer-jcrjcrinstall-and-osgiinstaller.html - To unsubscribe, e-mail: users-unsubscr...@felix.apache.org For additional commands, e-mail: users-h...@felix.apache.org
Re: Felix 2.0.0 download link broken
Hi, On Tue, Sep 29, 2009 at 3:09 PM, Sahoo wrote: > http://cwiki.apache.org/confluence/display/FELIX/%5Bpreferred%5D/felix/felix-framework-2.0.0.zip > is broken. Just noticed that as well, it's the mirror selection script that's not called apparently. Using http://www.apache.org/dyn/closer.cgi/felix/ will allow you to select a mirror, and you can then navigate down manually. -Bertrand - To unsubscribe, e-mail: users-unsubscr...@felix.apache.org For additional commands, e-mail: users-h...@felix.apache.org
Re: Felix inside web container
Hi Vinicius, On Fri, Jan 9, 2009 at 7:12 PM, Vinicius Carvalho wrote: > Bertrand Sling is amazing,... Thanks! > ...One thing we really would like is to use some framework to help on the > development, I guess I'm just too lazy now that I've used Spring and Seam, > and all the stuff they do for us (Transaction demarcation, Open Session in > View, different scopes for beans) and I really wish I could use spring dm > also... I don't have experience mixing Spring DM with Sling, but [1] reports getting that to work. > ...I've got some great guidance from a user (really sorry, do not have the > message now, otherwise I would name him) about GWT integration, which is > another thing we would like to use There is a GWT extension for Sling at [2], maybe that helps. > ...I'm feeling like McGyver, if only I had a bubble gum, a paper clip and a > pencil ... I know...paradox of choice ;-) -Bertrand [1] http://dev.day.com/microsling/content/blogs/main/slingspringspling.html [2] http://svn.apache.org/repos/asf/incubator/sling/trunk/extensions/gwt/ - To unsubscribe, e-mail: users-unsubscr...@felix.apache.org For additional commands, e-mail: users-h...@felix.apache.org
Re: Felix inside web container
Hi, On Tue, Jan 6, 2009 at 1:28 PM, Vinicius Carvalho wrote: > ...I was imagining putting the Felix inside a servlet context, much like > Spring > app do. And my servlets would consume services provided by the Felix, I > would create some special servlets front ends to install bundles, list them, > update, and the application would only consume the services Apache Sling does something similar, you can have a look at the code under [1] to see how Felix is started. Sling allows you to register servlets using SCR annotations, see [2] for example, loading a bundle that contains that JsonQueryServlet is enough to have it process URLs ending in ".query.json". See http://incubator.apache.org/sling for general info about Sling. -Bertrand [1] http://svn.apache.org/repos/asf/incubator/sling/trunk/launchpad/base/src/main/java/org/apache/sling/launcher [2] http://svn.apache.org/repos/asf/incubator/sling/trunk/servlets/get/src/main/java/org/apache/sling/servlets/get/JsonQueryServlet.java - To unsubscribe, e-mail: users-unsubscr...@felix.apache.org For additional commands, e-mail: users-h...@felix.apache.org
Re: Error in fwk JarContent class: "Unable to open JAR file"
On Tue, Dec 9, 2008 at 4:01 PM, Richard S. Hall <[EMAIL PROTECTED]> wrote: > One quick question, are you running on Windows? Not me - I've seen the "java.util.zip.ZipException: error in opening zip file" error on macosx while working on jcrinstall. -Bertrand - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Error in fwk JarContent class: "Unable to open JAR file"
Hi, On Mon, Dec 8, 2008 at 9:33 AM, Pierre De Rop <[EMAIL PROTECTED]> wrote: >... I am testing hot deployment on our app server (with Felix 1.4.0) and I > discovered that, after a couple of bundle updates, > then I end up with the following fwk exception: > > -> ERROR: JarContent: Unable to open JAR file. (java.util.zip.ZipException: > error in opening zip file) > java.util.zip.ZipException: error in opening zip file... I remember seeing this error while working on the Sling jcrinstall module [1], which can do lots of bundle installs/replacements in batches. I didn't track that down precisely as there were other problems, but what I found out is that bundle uninstall/install/update actions seem to cause race conditions sometimes, when services managed by SCR are being stopped or started at the same time. In our case, using start levels seems to help, although in theory it should not be required: for now, the best solution that I have found is to (automatically, see [2]) bring the OSGi start level down before doing such bundle updates, and raising it again when done. Note that we're still using org.apache.felix.framework 1.0.4 in Sling, but the problems that you describe look similar to what I've seen. -Bertrand [1] http://svn.apache.org/repos/asf/incubator/sling/trunk/extensions/jcrinstall/ [2] https://issues.apache.org/jira/browse/SLING-747 - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: JMX UI for felix shell service
Hi Didier, On Thu, Dec 4, 2008 at 8:30 AM, Didier Donsez <[EMAIL PROTECTED]> wrote: > ...I have a license issue to solve for the plugin part: the JConsolePlugin > API is "GPL Classpath Exception" (like the OpenJDK and Glassfish) and I > don't know if it is compatible with the ASL2 FYI, the place to ask would be [EMAIL PROTECTED], and/or create an issue at https://issues.apache.org/jira/browse/LEGAL. When resolved, such cases are added to the list of resolved license issues at http://www.apache.org/legal/resolved.html HTH, -Bertrand - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Questions about building a web-application with OSGi
Hi, I'm not an OSGi expert but a Sling committer, and we use OSGi in web applications extensively there, so I'll try. On Wed, Sep 17, 2008 at 2:04 AM, Joachim Rohde <[EMAIL PROTECTED]> wrote: > ...But first let me explain what I have in mind: I want to build a > web-application that can be modularized via plugins Pretty much what Sling does, so you might want to have a look at that as an example. > ...Is it just a matter of taste to let the webserver be started by the OSGi > framework or the OSGi framework be started by a web-application or are there > some advantages / disadvantegs that I don't see yet?... I'd say it depends on your environment - a webapp is convenient if you're in a webapp container environment, whereas for standalone, runnable jar stuff you might not need a webapp container and the former might be easier. Sling demonstrates both, in its launchpad/app and launchpad/webapp modules. > ...After further investigating I stumpled upon Spring-DM... Cannot help you on the Spring parts, except maybe this blog post from a colleague about using Spring in Sling: http://dev.day.com/microsling/content/blogs/main/slingspringspling.html > ...And then there is Apache Sling, which is also using Felix. But honestly I > am > not quite sure, if I really got the idea of Sling and if it could be of any > use for me. Can it?... Sling is a web framework that is built out of OSGi bundles, and uses a Java Content Repository for content/data storage. As I said it might be useful as an example, or you might build your application on it if working with JCR suits your needs. Hope this helps, although I'm obviously based towards Sling. -Bertrand - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: OSGI Tools question
On Thu, Sep 11, 2008 at 10:20 AM, Peter Kriens <[EMAIL PROTECTED]> wrote: > ...Overall, trying to use maven + Eclipse is a bit of a mess... I agree, trying use the supposedly cool features of the current Eclipse/Maven plugins did not work well for me either. I went to back to working in a less integrated way, that still allows me to take full advantage of both Maven and Eclipse: -Define everything in the Maven pom (see [1] for a simple example of a small pom-based bundle) -Use mvn eclipse:eclipse to generate the Eclipse project files -Don't do any compilation or building in Eclipse, and use remote debugging instead of doing it in Eclipse This gives me all the advantages of Eclipse for code writing and debugging, and my Eclipse setups are throwaway, which is very useful if you're working on several machines or in a team. -Bertrand [1] http://svn.apache.org/repos/asf/incubator/sling/trunk/samples/webloader/service/ - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Wait for services to be fully registered?
On Wed, Jun 11, 2008 at 3:31 PM, jaredmac <[EMAIL PROTECTED]> wrote: > ...So even if I change my client to respond to bind() and unbind() methods, > and > dynamically register/unregister these menu items, then the UI will work > correctly (with menu items coming and going, I suppose), but the unit tests > still fail. I want to avoid that I was confronted with the same problem when writing the integration tests for Sling [1], and my (pragmatic) solution is, when the integration tests start, to run some initial tests repeatedly until the results show a stable state, or a timer expires. In the case of Sling, those initial tests execute some simple high-level operations that only work if all services required to run the integration tests are present. That's a somewhat brute-force way of finding out about the state of our system, but it is simple to understand and debug, and works for us. We are planning to integrate this "system readyness testing" into the platform, see SLING-490. -Bertrand [1] http://svn.eu.apache.org/repos/asf/incubator/sling/trunk/launchpad/webapp [2] See waitForSlingStartup() method in http://svn.eu.apache.org/repos/asf/incubator/sling/trunk/commons/testing/src/main/java/org/apache/sling/commons/testing/integration/HttpTestBase.java - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
[OT] Re: AW: AW: AW: AW: AW: AW: AW: AW: AW: AW:...
Hi Daniel, On Fri, Jul 25, 2008 at 8:58 PM, Daniel Felsing <[EMAIL PROTECTED]> wrote: > Hiho,... I assume it's your mailer that adds the multiple AW: prefixes to the subject line, if that's the case it would be nice if you could fix that - my felix inbox looks really funny today ;-) Thanks, -Bertrand - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Declarative Services with maven-bundle-plugin
On 9/19/07, Rodrigo Madera <[EMAIL PROTECTED]> wrote: > ...In a normal Eclipse project I would > add this to the manifest and all would be solved: > > Import-Package: org.eclipse.osgi.framework.console;version="1.0.0" Use the statement of maven-bundle-plugin, see http://felix.apache.org/site/maven-bundle-plugin-bnd.html -Bertrand - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Embedding and *hiding* Felix inside a jar?
Hi Felix, On 9/15/07, Felix Meschberger <[EMAIL PROTECTED]> wrote: > Let me see, whether I understand it correctly... You do, your description matches what I'm trying to do. > ...Probably, you will setup a class loader in whose parent is the class > loader loading the hammer.jar. This private classloader, will know the > Felix framework (and osgi) libraries, which you load in the Hammer Exactly. > ... the > private class loader must be able to be setup from jar files embedded in > jar files, which is AFAIK not possible with the standard URLClassLoader... That's what I found out as well. http://one-jar.sourceforge.net/ uses a JarClassLoader which demonstrates one way to solve this. > ...You might want to have a look at the ClassWorlds project for a solution > to this problem... Cool, thanks for the pointer. Classworlds looks very interesting, and the uberjar plugin could help as well. -Bertrand - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Embedding and *hiding* Felix inside a jar?
On 9/15/07, Richard S. Hall <[EMAIL PROTECTED]> wrote:
> Perhaps I don't understand exactly what you are asking, but doesn't the
> example application basically do what you want?
>
> http://cwiki.apache.org/FELIX/apache-felix-application-demonstration.html...
>From the functional side of things yes, but what I'm after is some
form of shielding classloader that completely hides the fact that
Felix is used to run my tool.
Hopefully the example below is clearer:
// hammer.jar is in the classpath
// hammerl.jar embeds the Felix runtime, and a number of
// OSGi bundles, used internally
// Hammer comes from hammer.jar
Hammer h = HammerFactory.createHammer();
// This must fail: Felix classes, and classes found in mytool.jar
// except the Hammer interfaces, must be "invisible"
Class.forName("org.apache.felix.framework.Felix");
> ...Perhaps you also wish to make the bundle JAR files embedded into this
> single JAR file too? This should be fairly easy, just embed them as
> resources and then use getResource() to get a resource URL to them and
> use that URL to install them into your Felix instance...
Yes, that shouldn't be too hard, the problem lies more in the
classloader isolation described above.
Thanks for your reply - hope this clarifies what I'm after!
-Bertrand
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Embedding and *hiding* Felix inside a jar?
Hi,
For an upcoming project I'd like to use Felix to manage third-party
dependencies internally, while hiding this completely from the users
of the resulting tool, which would be delivered as a single jar file.
If for example my library has this interface:
package tunes.looney.hammer;
public interface Hammer {
HammerResult process(HammerInput hi)
throws HammerException;
}
My jar would only expose this interface and the supporting
tunes.looney.hammer.* classes to the outside world, yet use Felix
internally to manage a set of bundles to implement it.
This would not require the user of the jar to have an OSGi runtime, so
that the jar can be seen as a simple tool with no dependencies.
Has anyone done something similar?
I'm not an expert in classloaders, but I assume an isolating
classloader, which uses jars embedded inside the main jar for the
Felix and third-party stuff, would do the job (with some fun problems
to solve along the way, most probably).
This also sounds a lot like what servlet containers are doing, of course.
Thanks for any advice or pointers to existing such tools,
-Bertrand
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Re: Declarative Services with maven-bundle-plugin
Hi Rodrigo, On 9/15/07, Rodrigo Madera <[EMAIL PROTECTED]> wrote: >... I'm trying to develop a Declarative Service using the maven-bundle-plugin, > but I can't find documentation on it The docs are at http://felix.apache.org/site/maven-bundle-plugin-bnd.html , but to create Declarative Services you should also have a look at the maven-scr-plugin, see http://felix.apache.org/site/maven-scr-plugin.html -Bertrand - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
