Hi Hogler, thank you for your reply! Basically I wanted to use Java-based extension because we already have some implementation of required functionality in Java, so it would be cool to have at least one example of working OSGi bundle.
Actually, I think that I've found a workaround and I'm going to create required converter using SPARQLMotion and XSL transformer. Anyway, thank you very much for help! Best regards, Oleksandr Mandryk On Thursday, February 23, 2017 at 10:02:12 PM UTC+1, Holger Knublauch wrote: > > Ok, I kind-of expected problems like this. OSGI classloader issues are > quite complex and very hard to get right. As a first step I assume you have > added some test log print code to verify that your plugin is called at all? > > My more general preference would be to move away from Java-based > extensions. Could you summarize why Java is needed in your case, or whether > the same results could be achieved through some other means, in particular > JavaScript? > > Thanks, > Holger > > > On 23/02/2017 19:47, Oleksandr Mandryk wrote: > > Hi Hogler, > thank you for the reply. > My plugin.xml looks like this: > > <?xml version="1.0" encoding="UTF-8"?> > <?eclipse version="3.4"?> > <plugin> > <extension > point="org.topbraid.core.pluginActivators"> > <activator > class="com.my.ExportToHIXFunctionPluginActivator"> > </activator> > <function > class="com.my.ExportToHIX" > uri="http://my.com/functions#exportToHIX"; > <http://my.com/functions#exportToHIX>> > </function> > </extension> > > </plugin> > > Generated Bundle Activator: > public class Activator implements BundleActivator { > private BundleContext context; > > @Override > public void start(BundleContext context) throws Exception { > System.out.println("Starting Bundle: ExportToHIX"); > this.context = context; > } > > @Override > public void stop(BundleContext arg0) throws Exception { > System.out.println("Stopping Bundle: ExportToHIX"); > this.context = null; > } > } > > And Function Registration: > import org.apache.jena.sparql.function.FunctionRegistry; > import org.topbraid.core.activator.IPluginActivator; > > public class ExportToHIXFunctionPluginActivator implements > IPluginActivator { > > private static final String EXPORT_TO_HIX_ID = > "http://my.com/functions#exportToHIX"; > <http://my.com/functions#exportToHIX>; > @Override > public void activate() { > FunctionRegistry.get().put(EXPORT_TO_HIX_ID, ExportToHIX.class); > } > } > > Function class: > import org.apache.jena.sparql.expr.NodeValue; > import org.apache.jena.sparql.function.FunctionEnv; > import org.topbraid.spin.arq.AbstractFunction0; > > public class ExportToHIX extends AbstractFunction0 { > > @Override > protected NodeValue exec(FunctionEnv arg0) { > return NodeValue.makeString("Hello World Custom Java Function"); > } > > } > > > Manifest file: > > Manifest-Version: 1.0 > Bundle-ManifestVersion: 2 > Bundle-Name: My Bundle > Bundle-SymbolicName: com.my.functions;singleton:=true > Bundle-Version: 0.0.1 > Bundle-Activator: com.my.functions.Activator > Bundle-RequiredExecutionEnvironment: JavaSE-1.8 > Import-Package: org.osgi.framework;version="1.3.0" > Bundle-Vendor: ME > Require-Bundle: org.eclipse.core.runtime,org.topbraid.lib.jena,org. > topbraid.core,org.topbraid.spin > > I've tried to put ExportToHIXFunctionPluginActivator instead of Activator > to the manifest file, but it didn't help. > > On Thursday, February 23, 2017 at 10:33:15 AM UTC+1, Holger Knublauch > wrote: >> >> Could you share the plugin.xml file? If the function is not registered >> you could also try to register it through a bundle activator. >> >> Holger >> >> >> Sent from my iPad >> >> On 22 Feb 2017, at 23:04, Oleksandr Mandryk <[email protected]> wrote: >> >> Hi, >> >> I've created a test Equinox plugin using this guide: >> TBC > Help > Help Contents > TopBraid Composer > Extending TopBraid Suite >> >> It works fine when I run it using "*Launch an Eclipse application"* in >> TBC. >> >> I would like to use my exposed function in EVN so I've created OSGi >> bundle from this project >> by using maven-jar-plugin plugin: >> <plugin> >> <groupId>org.apache.maven.plugins</groupId> >> <artifactId>maven-jar-plugin</artifactId> >> <version>3.0.2</version> >> <configuration> >> <archive> >> <manifestFile>META-INF/MANIFEST.MF</manifestFile> >> </archive> >> </configuration> >> </plugin> >> >> >> after restarting Tomcat I can see my bundle with the status RESOLVED in >> the EVN's list of OSGi bundles, >> but my function doesn't work in EVN and I've noticed the warning in logs: >> [TopBraid Warning] 2017-02-22T10:50:22+0000 - org.topbraid.eclipsex: >> WARN [http-nio-8080-exec-4] (E_Function.java:89) - URI < >> http://my.com/functions#exportToHIX> has no registered function factory >> >> Could you tell me please what I'm doing wrong? >> >> Thank you. >> >> Best regards, >> Oleksandr Mandryk >> >> -- >> You received this message because you are subscribed to the Google Group >> "TopBraid Suite Users", the topics of which include the TopBraid Suite >> family of products and its base technologies such as SPARQLMotion, SPARQL >> Web Pages and SPIN. >> To post to this group, send email to [email protected] >> --- >> You received this message because you are subscribed to the Google Groups >> "TopBraid Suite Users" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> For more options, visit https://groups.google.com/d/optout. >> >> -- > You received this message because you are subscribed to the Google Group > "TopBraid Suite Users", the topics of which include the TopBraid Suite > family of products and its base technologies such as SPARQLMotion, SPARQL > Web Pages and SPIN. > To post to this group, send email to [email protected] > <javascript:> > --- > You received this message because you are subscribed to the Google Groups > "TopBraid Suite Users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected] <javascript:>. > For more options, visit https://groups.google.com/d/optout. > > > -- You received this message because you are subscribed to the Google Group "TopBraid Suite Users", the topics of which include the TopBraid Suite family of products and its base technologies such as SPARQLMotion, SPARQL Web Pages and SPIN. 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