[TINKERPOP-228] Trouble implementing GremlinPlugin

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Done
• Fix Version/s: 3.0.0-incubating
• Component/s: plugin
• Assignee: Unassigned
• Reporter: pietermartin
• Created: 12/Oct/14 08:36
• Updated: 24/Mar/15 12:52
• Resolved: 24/Mar/15 12:52

Description

Hi,

I am trying to implement the GremlinPlugin for a tp3 implementation.

The step :install org.umlg sqlg-hsqldb 0.0.2-SNAPSHOT works fine and I can see it in the ext folder.
(Some issues there in that somehow it kept on loading a old version of the jar. I had to bump my version from 0.0.1 to 0.0.2 before it got the correct jars)

However once it had the correct jar, the plugin does not become available in the :plugin list

Debugging a bit it seems to me that ServiceLoader.load(GremlinPlugin.class, groovy.getInterp().getClassLoader()) does not see my plugin class.

The class follows the neo4j example.

public class SqlgHsqldbGremlinPlugin implements GremlinPlugin {

    private static final String IMPORT = "import ";
    private static final String DOT_STAR = ".*";

    private static final Set<String> IMPORTS = new HashSet<String>() {{
        add(IMPORT + SqlgGraph.class.getPackage().getName() + DOT_STAR);
    }};

    @Override
    public String getName() {
        return "tinkerpop.sqlg.hsqldb";
    }

    @Override
    public void pluginTo(final PluginAcceptor pluginAcceptor) {
        pluginAcceptor.addImports(IMPORTS);
    }
}

Any pointers as to what I am doing wrong?

Following on a discussion on the mailling list I am adding -Xverify:none to the gremlin.sh script.