Hi I have found a work around - I added all the jar files needed in the classpath before I start Tomcat/Trinidad (put them in the lib folder) This is awkward since I don't know which jar files should be added (it's in a configuration file). Also, I have not managed to get the online backup working in Tomcat even when I add all the jar files to the classpath. It works when I run it standalone by just adding the online jar file at runtime, but not from Tomcat because of some classloading issue ?
So, why can't I load the JAR files dynamically like this in Tomcat ? (which is the same as in ruby: require 'myjar.jar') URL url = getURL(jarFile); getRuntime().getJRubyClassLoader().addURL(url); Is there an alternative of loading the jar files dynamically at runtime ? (from http://thinkincode.net/2011/02/09/jruby-class-loader-by-example.html) /Andreas On Thu, Feb 17, 2011 at 9:33 AM, Anders Nawroth <[email protected]> wrote: > Hi! > > This is included as a dependency: > org.apache.servicemix.bundles:org.apache.servicemix.bundles.lucene:jar:3.0.1_2:compile > > That's an OSGi-friendly packaging of Lucene. > > /anders > > On 02/17/2011 09:11 AM, Michael Hunger wrote: >> >> Sorry, didn't see your mail (had Andreas' still open for replying). >> >> It worked, thanks very much. But funnily the lucene jar is not recognized >> as dependency by maven for the server (mvn dependency:copy-dependencies). I >> assume it is added by the server-build project? >> >> Cheers >> >> Michael >> >> Am 17.02.2011 um 08:49 schrieb Mattias Persson: >> >>> It's probably a classpath issue as you say. You added the >>> neo4j-lucene-index-XXX.jar file manually to the classpath, but also make >>> sure the lucene-core-3.0.1.jar is on the classpath. You can also look in >>> the >>> <neo4j-db-directory>/messages.log and see which extensions are loaded >>> tigether with the graph database and which of those failed to load a.s.o. >>> >>> 2011/2/16 Andreas Ronge<[email protected]> >>> >>>> Hi >>>> >>>> When I run my Rails application using Tomcat/Trinidad I get "No index >>>> provider 'lucene' found", see stack trace below >>>> I think I have seen a similar problem on the gremlin email list. >>>> I guess it's because of a class loading issue, or maybe the >>>> META-INF/services files, >>>> or because in JRuby the neo4j jar files are loaded at runtime. >>>> I need some hints where I should start looking. >>>> >>>> I have tried to manually add the neo4j-lucene-index-1.3.M02.jar file >>>> to the classpath without any luck (jruby -J-cp /home/... -S trinidad) >>>> >>>> The problem occurs in neo4j.rb version>= 1.0.0.beta.17 when the new >>>> lucene index framework was introduced. >>>> It works in WEBrick/rails s >>>> >>>> at org.jruby.rack.RackServlet.service(RackServlet.java:56) >>>> at >>>> >>>> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:306) >>>> at >>>> >>>> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) >>>> at >>>> >>>> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:240) >>>> at >>>> >>>> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161) >>>> at >>>> >>>> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164) >>>> at >>>> >>>> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100) >>>> at >>>> >>>> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) >>>> at >>>> >>>> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:380) >>>> at >>>> >>>> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:243) >>>> at >>>> >>>> org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:188) >>>> at >>>> >>>> org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:288) >>>> at >>>> >>>> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) >>>> at >>>> >>>> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) >>>> at java.lang.Thread.run(Thread.java:662) >>>> Caused by: org.jruby.exceptions.RaiseException: Native Exception: >>>> 'class java.lang.IllegalArgumentException'; Message: No index provider >>>> 'lucene' found; StackTrace: java.lang.IllegalArgumentException: No >>>> index provider 'lucene' found >>>> at >>>> >>>> org.neo4j.kernel.IndexManagerImpl.getIndexProvider(IndexManagerImpl.java:71) >>>> at >>>> >>>> org.neo4j.kernel.IndexManagerImpl.findIndexConfig(IndexManagerImpl.java:111) >>>> at >>>> >>>> org.neo4j.kernel.IndexManagerImpl.getOrCreateIndexConfig(IndexManagerImpl.java:173) >>>> at >>>> org.neo4j.kernel.IndexManagerImpl.forNodes(IndexManagerImpl.java:250) >>>> >>>> Caused by: java.lang.IllegalArgumentException: No index provider >>>> 'lucene' >>>> found >>>> at >>>> >>>> org.neo4j.kernel.IndexManagerImpl.getIndexProvider(IndexManagerImpl.java:71) >>>> at >>>> >>>> org.neo4j.kernel.IndexManagerImpl.findIndexConfig(IndexManagerImpl.java:111) >>>> at >>>> >>>> org.neo4j.kernel.IndexManagerImpl.getOrCreateIndexConfig(IndexManagerImpl.java:173) >>>> at >>>> org.neo4j.kernel.IndexManagerImpl.forNodes(IndexManagerImpl.java:250) >>>> >>>> /Andreas >>>> _______________________________________________ >>>> Neo4j mailing list >>>> [email protected] >>>> https://lists.neo4j.org/mailman/listinfo/user >>>> >>> >>> >>> >>> -- >>> Mattias Persson, [[email protected]] >>> Hacker, Neo Technology >>> www.neotechnology.com >>> _______________________________________________ >>> Neo4j mailing list >>> [email protected] >>> https://lists.neo4j.org/mailman/listinfo/user >> >> _______________________________________________ >> Neo4j mailing list >> [email protected] >> https://lists.neo4j.org/mailman/listinfo/user > > -- > You received this message because you are subscribed to the Google Groups > "neo4jrb" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/neo4jrb?hl=en. > > _______________________________________________ Neo4j mailing list [email protected] https://lists.neo4j.org/mailman/listinfo/user
