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[Owldb-users] Fwd: Owldb-users post from dvrmchowdhary@gmail.com requires approval
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From: Joachim K. <joa...@go...> - 2010-01-02 15:28:58
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---------- Forwarded message ---------- From: Joachim Kleb <joa...@go...> Date: 2010/1/2 Subject: Re: [Owldb-users] Owldb-users post from dvr...@gm... approval To: Chowdary DVRM <dvr...@gm...> Hi Chowdary, The "hibernate.cfg.xml"-file is not in included in the system path. Please add the file to the "path"-environment variable. Select the appropriate file included in the subfolders in the /config-folder. Means, use /config/MySql/hibernate.cfg.xml, if you are running a mysql-database. After that you should be able to run the program. Best, Joachim 2009/12/17 Chowdary DVRM <dvr...@gm...> Hi Jaochim, > I get the following error when I try using owldb. > ------------------------------------------------------------- > INFO [main] (?:?) - Loading ontology: jdbc:mysql://localhost/owldb > INFO [main] (Environment.java:560) - Hibernate 3.3.2.GA > INFO [main] (Environment.java:593) - hibernate.properties not found > INFO [main] (Environment.java:771) - Bytecode provider name : javassist > INFO [main] (Environment.java:652) - using JDK 1.4 java.sql.Timestamp > handling > INFO [main] (Configuration.java:1474) - configuring from resource: > /hibernate.cfg.xml > INFO [main] (Configuration.java:1451) - Configuration resource: > /hibernate.cfg.xml > ERROR [main] (?:?) - Initial SessionFactory creation failed. > org.hibernate.HibernateException: /hibernate.cfg.xml not found > at > org.hibernate.util.ConfigHelper.getResourceAsStream(ConfigHelper.java:170) > at > org.hibernate.cfg.Configuration.getConfigurationInputStream(Configuration.java:1453) > at org.hibernate.cfg.Configuration.configure(Configuration.java:1475) > at org.hibernate.cfg.Configuration.configure(Configuration.java:1462) > at de.fraunhofer.iitb.owldb.util.HibernateCfgUtil.<init>(Unknown > Source) > at de.fraunhofer.iitb.owldb.OWLDBOntology.<init>(Unknown Source) > at > de.fraunhofer.iitb.owldb.OWLDBOntologyFactory.createOWLOntology(Unknown > Source) > at > de.fraunhofer.iitb.owldb.OWLDBOntologyFactory.createOWLOntology(Unknown > Source) > at de.fraunhofer.iitb.owldb.OWLDBOntologyManager.createOntology(Unknown > Source) > at de.fraunhofer.iitb.owldb.OWLDBStorer.storeOntology(Unknown Source) > at de.fraunhofer.iitb.owldb.OWLDBStorer.storeOntology(Unknown Source) > at de.fraunhofer.iitb.owldb.OWLDBOntologyManager.saveOntology(Unknown > Source) > at ceti.osu.test.owldb.MyOwlDBTest.storeOntology(MyOwlDBTest.java:24) > at ceti.osu.test.owldb.MyOwlDBTest.main(MyOwlDBTest.java:36) > Exception in thread "main" java.lang.ExceptionInInitializerError > at de.fraunhofer.iitb.owldb.util.HibernateCfgUtil.<init>(Unknown > Source) > at de.fraunhofer.iitb.owldb.OWLDBOntology.<init>(Unknown Source) > at > de.fraunhofer.iitb.owldb.OWLDBOntologyFactory.createOWLOntology(Unknown > Source) > at > de.fraunhofer.iitb.owldb.OWLDBOntologyFactory.createOWLOntology(Unknown > Source) > at de.fraunhofer.iitb.owldb.OWLDBOntologyManager.createOntology(Unknown > Source) > at de.fraunhofer.iitb.owldb.OWLDBStorer.storeOntology(Unknown Source) > at de.fraunhofer.iitb.owldb.OWLDBStorer.storeOntology(Unknown Source) > at de.fraunhofer.iitb.owldb.OWLDBOntologyManager.saveOntology(Unknown > Source) > at ceti.osu.test.owldb.MyOwlDBTest.storeOntology(MyOwlDBTest.java:24) > at ceti.osu.test.owldb.MyOwlDBTest.main(MyOwlDBTest.java:36) > Caused by: org.hibernate.HibernateException: /hibernate.cfg.xml not found > at > org.hibernate.util.ConfigHelper.getResourceAsStream(ConfigHelper.java:170) > at > org.hibernate.cfg.Configuration.getConfigurationInputStream(Configuration.java:1453) > at org.hibernate.cfg.Configuration.configure(Configuration.java:1475) > at org.hibernate.cfg.Configuration.configure(Configuration.java:1462) > ... 10 more > ---------------------------------------- > I am not sure which hibernate.cfg.xml is being looked for. I tried creating > it in my project, but I still doesn't work. > > Thanks, > Chowdary. > > On Tue, Dec 8, 2009 at 12:59 AM, Joachim Kleb <joa...@go... > > wrote: > >> Hi Chowdary, >> >> Sorry for the late reply. Regarding your first question: there is >> currently no generated jar-file >> included. The project repository include two ant-build-files in order to >> build the project and also create the jar-files. >> Therefore use ant (ant.apache.org) and execute "ant build" on the >> command line. >> 2: The java-doc will be also created during the build process. There >> will be a folder "javadoc" including all necessary html-files. >> There are also examples included in the source code explaining how to >> use OWLDB. >> 3: OWLDB make use of the OWL-API (http://owlapi.sourceforge.net/) and >> represents a database-backend for this api. Thus you can use the >> querying and reasoning functionality of the owl-api in order to access >> your ontology stored via the owldb in your database. >> OWLDB uses an hibernate-mapping that allows to map the ontology >> represented by the owlapi in a database. Here we tried to optimise the >> mapping regarding the general requirements of owl. The resulting schema >> is very specific. Reusing projects with already existing database >> schemas and transfering their data to an ontology means to map the data >> between both worlds. That could be done either by a programm focused on >> database transformations or by a programm reading your existing database >> and transfering it to owlapi objects. Subsequently it would be >> automatically stored in a database based on the owldb functionality. >> >> As an alternative you can also use D2R2 >> (http://www4.wiwiss.fu-berlin.de/bizer/d2rq/) in order to map your >> existing db-schema to an ontology, dump it as rdf-ontology and use owldb >> as database-backend for this ontology. >> >> Best, >> Joachim >> >> >> ------------------------------ >> Subject: >> A question on OWLDB >> From: >> Chowdary DVRM <dvr...@gm...> <dvr...@gm...> >> Date: >> Fri, 4 Dec 2009 11:22:48 -0500 >> To: >> owl...@li... >> To: >> owl...@li... Hi, >> I am trying to use OWLDB in my project and I have a few questions which I >> request you to help me with. >> >> 1. I don't see a jar file of the distribution in the svn. Where can I find >> it ? >> 2. Where can I find the javadoc for the api ? >> 3. I would like to know how the ontology(TBox and ABox) stored in a >> realational DB like MySQL can be queried and loaded into a reasoner like >> Pellet using owldb(may be going through owldb's api doc might help). In my >> project, the ontology schema and the existing database schema are a little >> different(with many overlappings) and I would like to query my database >> first to populate the ontology and load it into a reasoner for inferencing >> and store the entailments back into the database. So, basically, I guess I >> am trying to replicate what you have done with OWLdB. It would be great if >> you can comment on such situations where I don't want to stick to a database >> automatically generated from an ontology schema which is what I guess owl db >> does. >> >> Thanks&Regards, >> Chowdary Davuluri, >> M.S. in CS&E, >> The Ohio State University. >> >> >> >> ------------------------------------------------------------------------------ >> Join us December 9, 2009 for the Red Hat Virtual Experience, >> a free event focused on virtualization and cloud computing. >> Attend in-depth sessions from your desk. Your couch. Anywhere. >> http://p.sf.net/sfu/redhat-sfdev2dev >> _______________________________________________ >> Owldb-users mailing list >> >> Owl...@li... >> https://lists.sourceforge.net/lists/listinfo/owldb-users >> >> > |
