On 06/26/2017 07:16 PM, Henrik Schmidt wrote:
Hi Adam,
can you explain why your solution was necessary and it did work without
it for me ?
Best
Henrik
Adam Sanchez schrieb am 23.06.2017 um 13:57:
Hi Hugh,
Finally I found my own solution. I am not very proud but it works at least.
Well, I have to compile RDF4J (https://github.com/eclipse/rdf4j)
including the libraries and the templates provided by Virtuoso
(http://vos.openlinksw.com/owiki/wiki/VOS/VirtSesame2HttpRepository)
The steps I followed are described here.
https://github.com/asanchez75/rdf4j/wiki
The changes were implemented in the branch virtuoso-7.2.4.2
Regards,
Adam
On Thu, Jun 22, 2017 at 11:15 AM, Adam Sanchez <a.sanche...@gmail.com> wrote:
Hi Hugh,
I still got the same error I reported. Just in case, these are the
paths and the versions I am using.
- I have downloaded virt_rdf4j.jar from
https://opldownload.s3.amazonaws.com/uda/virtuoso/rdfproviders/rdf4j/2/virt_rdf4j.jar
and the version is
java -jar
/usr/local/src/apache-tomcat-8.0.39/webapps/rdf4j-server/WEB-INF/lib/virt_rdf4j.jar
OpenLink Virtuoso(TM) Provider for RDF4J(TM) Version 2.1.4 [Build 1.3]
- I have downloaded virt_rdf4j.jar from
https://opldownload.s3.amazonaws.com/uda/virtuoso/jdbc/virtjdbc4_2.jar
and the version is
java -jar
/usr/local/src/apache-tomcat-8.0.39/webapps/rdf4j-workbench/WEB-INF/lib/virtjdbc4_2.jar
OpenLink Virtuoso(TM) Driver for JDBC(TM) Version 4.2 [Build 3.100]
[Sergey]
1)
Your(from link above) virt_rdf4j.jar file is Ok,
If you need the latest sources(Gradle based) and jar, you could download it
from:
http://opldownload.s3.amazonaws.com/uda/virtuoso/7.2/rdfproviders/rdf4j/2/rdf4j_provider.zip
2)
You must place virt_rdf4j.jar and virtjdbc4_2.jar to both web apps to
rdf4j-server and to rdf4j-workbench
/usr/local/src/apache-tomcat-8.0.39/webapps/rdf4j-server/WEB-INF/lib/virt_rdf4j.jar
/usr/local/src/apache-tomcat-8.0.39/webapps/rdf4j-server/WEB-INF/lib/virtjdbc4_2.jar
/usr/local/src/apache-tomcat-8.0.39/webapps/rdf4j-workbench/WEB-INF/lib/virt_rdf4j.jar
/usr/local/src/apache-tomcat-8.0.39/webapps/rdf4j-workbench/WEB-INF/lib/virtjdbc4_2.jar
The virt_rdf4j.jar could not work without virtjdbc4_2.jar
I have tested Virtuoso RDF4J provider with my local Tomcat server and it works
without Nullpointer exceptions.
- I have downloaded create.xsl from
https://opldownload.s3.amazonaws.com/uda/virtuoso/rdfproviders/rdf4j/2/create.xsl
and the path is
/usr/local/src/apache-tomcat-8.0.39/webapps/rdf4j-workbench/transformations/create.xsl
- I have downloaded create-virtuoso.xsl from
https://opldownload.s3.amazonaws.com/uda/virtuoso/rdfproviders/rdf4j/2/create-virtuoso.xsl
and the path is
/usr/local/src/apache-tomcat-8.0.39/webapps/rdf4j-workbench/transformations/create-virtuoso.xsl
- The java version is
java version "1.8.0_73", Java(TM) SE Runtime Environment (build
1.8.0_73-b02), Java HotSpot(TM) 64-Bit Server VM (build 25.73-b02,
mixed mode)
- The Virtuoso version is
Virtuoso Version: 07.20.3217, Build: Jun 22 2017.
I compiled the branch stable/7, latest commit -> 0468195 Merge branch
'hotfix/7.2.4.2' into stable/7
- The RDF4J version is
RDF4J Workbench Version 2.1.6
(http://www.eclipse.org/downloads/download.php?file=/rdf4j/eclipse-rdf4j-2.1.6-sdk.zip)
- The operating system is
Operating System Mac OS X 10.12.5 (x86_64)
- The error message that shows up after I try to create a repository
connected with Virtuoso is
=============================================================================
HTTP Status 500 - java.lang.NullPointerException
type Exception report
message java.lang.NullPointerException
description The server encountered an internal error that prevented it
from fulfilling this request.
exception
javax.servlet.ServletException: java.lang.NullPointerException
org.eclipse.rdf4j.workbench.commands.CreateServlet.doPost(CreateServlet.java:68)
org.eclipse.rdf4j.workbench.base.TransformationServlet.service(TransformationServlet.java:96)
org.eclipse.rdf4j.workbench.base.AbstractServlet.service(AbstractServlet.java:125)
org.eclipse.rdf4j.workbench.proxy.ProxyRepositoryServlet.service(ProxyRepositoryServlet.java:109)
org.eclipse.rdf4j.workbench.proxy.WorkbenchServlet.service(WorkbenchServlet.java:213)
org.eclipse.rdf4j.workbench.proxy.WorkbenchServlet.handleRequest(WorkbenchServlet.java:141)
org.eclipse.rdf4j.workbench.proxy.WorkbenchServlet.service(WorkbenchServlet.java:109)
org.eclipse.rdf4j.workbench.proxy.WorkbenchGateway.service(WorkbenchGateway.java:120)
org.eclipse.rdf4j.workbench.base.AbstractServlet.service(AbstractServlet.java:125)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
org.eclipse.rdf4j.workbench.proxy.CacheFilter.doFilter(CacheFilter.java:62)
org.eclipse.rdf4j.workbench.proxy.CookieCacheControlFilter.doFilter(CookieCacheControlFilter.java:53)
root cause
java.lang.NullPointerException
org.eclipse.rdf4j.workbench.commands.CreateServlet.getConfigTemplate(CreateServlet.java:153)
org.eclipse.rdf4j.workbench.commands.CreateServlet.createRepositoryConfig(CreateServlet.java:120)
org.eclipse.rdf4j.workbench.commands.CreateServlet.doPost(CreateServlet.java:65)
org.eclipse.rdf4j.workbench.base.TransformationServlet.service(TransformationServlet.java:96)
org.eclipse.rdf4j.workbench.base.AbstractServlet.service(AbstractServlet.java:125)
org.eclipse.rdf4j.workbench.proxy.ProxyRepositoryServlet.service(ProxyRepositoryServlet.java:109)
org.eclipse.rdf4j.workbench.proxy.WorkbenchServlet.service(WorkbenchServlet.java:213)
org.eclipse.rdf4j.workbench.proxy.WorkbenchServlet.handleRequest(WorkbenchServlet.java:141)
org.eclipse.rdf4j.workbench.proxy.WorkbenchServlet.service(WorkbenchServlet.java:109)
org.eclipse.rdf4j.workbench.proxy.WorkbenchGateway.service(WorkbenchGateway.java:120)
org.eclipse.rdf4j.workbench.base.AbstractServlet.service(AbstractServlet.java:125)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
org.eclipse.rdf4j.workbench.proxy.CacheFilter.doFilter(CacheFilter.java:62)
org.eclipse.rdf4j.workbench.proxy.CookieCacheControlFilter.doFilter(CookieCacheControlFilter.java:53)
note The full stack trace of the root cause is available in the Apache
Tomcat/8.0.39 logs.
=============================================================================
Any idea?
Regards,
Adam
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Best Regards,
Sergey Malinin
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