LinkedDataSailGraph - No parser factory available for RDF format JSON-LD

Question

We're trying to use the LinkedDataSailGraph along with Gremlin to do some funky stuff with traversals, inference. Unfortunately, just instantiating the class causes this error. Any ideas?

new LinkedDataSailGraph(new MemoryStoreSailGraph());

java.lang.RuntimeException: No parser factory available for RDF format JSON-LD (mimeTypes=application/ld+json; ext=jsonld) at com.tinkerpop.blueprints.impls.sail.impls.LinkedDataSailGraph.createSail(LinkedDataSailGraph.java:22) at com.tinkerpop.blueprints.impls.sail.impls.LinkedDataSailGraph.(LinkedDataSailGraph.java:14) at org.isatools.bii.benchmarking.QueryBenchmark.testLoading(QueryBenchmark.java:71) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:601) at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:45) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:42) at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:27) at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:263) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:68) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:47) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222) at org.junit.runners.ParentRunner.run(ParentRunner.java:300) at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50) at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197) Caused by: org.openrdf.rio.UnsupportedRDFormatException: No parser factory available for RDF format JSON-LD (mimeTypes=application/ld+json; ext=jsonld) at org.openrdf.rio.Rio.createParser(Rio.java:184) at net.fortytwo.linkeddata.rdfizers.VerbatimRdfizer.(VerbatimRdfizer.java:26) at net.fortytwo.linkeddata.LinkedDataCache.createDefault(LinkedDataCache.java:139) at net.fortytwo.linkeddata.sail.LinkedDataSail.(LinkedDataSail.java:50) at com.tinkerpop.blueprints.impls.sail.impls.LinkedDataSailGraph.createSail(LinkedDataSailGraph.java:20) ... 25 more

Answer 1

I don't know why, but it expect to have the JSON-LD Parser: http://search.maven.org/#artifactdetails%7Ccom.github.jsonld-java%7Cjsonld-java%7C0.2%7Cjar

Answer 2

Hi hi I had the same problem, I have resolved as suggested by @wikier.

here there are the working dependencies for maven:

<!-- json-ld -->
<dependency>
    <groupId>com.github.jsonld-java</groupId>
    <artifactId>jsonld-java</artifactId>
    <version>0.3</version>
</dependency>
<dependency>
    <groupId>com.github.jsonld-java</groupId>
    <artifactId>jsonld-java-sesame</artifactId>
    <version>0.3</version>
</dependency>

or if you need them for other systems (sbt, etc), you can check them here: http://mvnrepository.com/artifact/com.github.jsonld-java