Unable to configure indexes using the Wildfly 8.1 Subsystem

[ma6rl]

I am currently running into issue configuring indexes using the Wildfly 8.1 subsystem.

Below is an example:

<subsystem xmlns="urn:jboss:domain:modeshape:2.0">
  <repository name="test-repo" cache-name="test-repo" cache-container="modeshape" security-domain="test-security">
  <workspaces>
  <workspace name="default">
  <initial-content>
                            /apps/test/config/initial-test-content.xml
                        </initial-content>
  </workspace>
  </workspaces>
  <node-types>
  <node-type>/apps/test/config/stock/schema.cnd</node-type>
  </node-types>
  <index-providers>
  <index-provider name="stock" classname="org.modeshape.jcr.index.local.LocalIndexProvider" module="org.modeshape" path="/apps/test/indexes"/>
  </index-providers>
  <indexes>
  <index name="assetName" provider-name="stock" kind="value" node-type="asset:stock" columns="asset:name(STRING)"/>
  </indexes>
  </repository>
</subsystem>

This results in the error

Message: JBAS014789: Unexpected element '{urn:jboss:domain:jaxrs:1.0}subsystem' encountered

  at org.jboss.as.controller.parsing.ParseUtils.unexpectedElement(ParseUtils.java:85) [wildfly-controller-8.1.0.Final.jar:8.1.0.Final]

  at org.jboss.as.controller.parsing.ParseUtils.nextElement(ParseUtils.java:76) [wildfly-controller-8.1.0.Final.jar:8.1.0.Final]

  at org.jboss.as.server.parsing.StandaloneXml.readServerElement_1_4(StandaloneXml.java:459) [wildfly-server-8.1.0.Final.jar:8.1.0.Final]

  at org.jboss.as.server.parsing.StandaloneXml.readElement(StandaloneXml.java:145) [wildfly-server-8.1.0.Final.jar:8.1.0.Final]

  at org.jboss.as.server.parsing.StandaloneXml.readElement(StandaloneXml.java:107) [wildfly-server-8.1.0.Final.jar:8.1.0.Final]

  at org.jboss.staxmapper.XMLMapperImpl.processNested(XMLMapperImpl.java:110) [staxmapper-1.1.0.Final.jar:1.1.0.Final]

  at org.jboss.staxmapper.XMLMapperImpl.parseDocument(XMLMapperImpl.java:69) [staxmapper-1.1.0.Final.jar:1.1.0.Final]

  at org.jboss.as.controller.persistence.XmlConfigurationPersister.load(XmlConfigurationPersister.java:104) [wildfly-controller-8.1.0.Final.jar:8.1.0.Final]

  ... 3 more

I took a look at the ModeShape source code and found the following test:

     ModeShapeConfigurationTest.testOutputPersistenceOfConfigurationWithLocalFileIndexStorage()

which uses:

     modeshape-local-file-index-storage.xml

I checked this file the <index-provider> element is commented out

<subsystem xmlns="urn:jboss:domain:modeshape:2.0">
  <repository name="sample"
              cache-name="sample" cache-container="modeshape"
              jndi-name="jcr/local/sample"
              enable-monitoring="true"
              security-domain="modeshape-security"
              anonymous-roles="readonly readwrite admin connect"
              anonymous-username="&lt;anonymous&gt;"
              use-anonymous-upon-failed-authentication="false">
    <workspaces default-workspace="default" allow-workspace-creation="true">
      <workspace name="predefinedWorkspace1" />
      <workspace name="predefinedWorkspace2" />
      <workspace name="predefinedWorkspace3" />
    </workspaces>
    <index-providers>
        <!--
        <index-provider name="local-indexes" classname="local"
              path="modeshape/sample/indexes/"
              relative-to="jboss.server.data.dir"
              />
        -->
    </index-providers>
    <sequencers>
      <sequencer name="modeshape-sequencer-ddl" classname="ddl" path-expression="//a/b" />
      <sequencer name="modeshape-sequencer-java" classname="java" path-expression="//a/b" />
    </sequencers>
  </repository>
</subsystem>

The test works as expected.

If I uncomment the <index-provider> element the test fails

<subsystem xmlns="urn:jboss:domain:modeshape:2.0">
    <repository name="sample"
                cache-name="sample" cache-container="modeshape"
                jndi-name="jcr/local/sample"
                enable-monitoring="true"
                security-domain="modeshape-security"
                anonymous-roles="readonly readwrite admin connect"
                anonymous-username="&lt;anonymous&gt;"
                use-anonymous-upon-failed-authentication="false">
        <workspaces default-workspace="default" allow-workspace-creation="true">
            <workspace name="predefinedWorkspace1"/>
            <workspace name="predefinedWorkspace2"/>
            <workspace name="predefinedWorkspace3"/>
        </workspaces>
        <index-providers>
            <index-provider name="local-indexes" classname="local"
                            path="modeshape/sample/indexes/"
                            relative-to="jboss.server.data.dir"
                    />
        </index-providers>
        <sequencers>
            <sequencer name="modeshape-sequencer-ddl" classname="ddl" path-expression="//a/b"/>
            <sequencer name="modeshape-sequencer-java" classname="java" path-expression="//a/b"/>
        </sequencers>
    </repository>
</subsystem>

with the following error:

javax.xml.stream.XMLStreamException: ParseError at [row,col]:[1,1040]

Message: JBAS014789: Unexpected element '{urn:jboss:domain:modeshape:2.0}sequencers' encountered

  at org.jboss.as.controller.parsing.ParseUtils.unexpectedElement(ParseUtils.java:85)

  at org.modeshape.jboss.subsystem.ModeShapeSubsystemXMLReader_2_0.readElement(ModeShapeSubsystemXMLReader_2_0.java:70)

  at org.modeshape.jboss.subsystem.ModeShapeSubsystemXMLReader_2_0.readElement(ModeShapeSubsystemXMLReader_2_0.java:34)

Am I doing something wrong or is there an issue with configuring indexes via the Wildfly Subsystem?

On a separate note is there an API for creating indexes so that you could programmatically create indexes at the same time you create node types?

[rhauch]

There's probably a bug introduced with some recent changes (it used to work). Please log an issue, and we'll fix it for Beta2.

In the meantime, you can programmatically define indexes using the IndexManager, which is accessible via ModeShape API via "session.getWorkspace().getIndexManager()" (all cast to ModeShape-specific public API interfaces). It works like the node type manager: create a template for an index, use the setters, and register the indexes. See the LocalIndexProviderTest for an example.

[ma6rl]

Created [MODE-2285] Unable to configure indexes using the Wildfly 8.1 Subsystem - JBoss Issue Tracker

In the mean time I'll take a look at the API.

Thanks.

[ma6rl]

Is there a way to programmatically add an Index Provider?

I looked at LocalIndexProviderTest and it is creating a repository configured with an index provider via JSON configuration and then creating indexes for that provider.

I already have a repository configured via the wildfly sub-system and want to add an Index Provider to it so that I can compare the performance of my queries before and after indexing. I did have a look at the ModeShape code and from what I can tell the class I need is RepositoryIndexProvider but it appears that it is an internal class and not easy to get access to from my application.

[rhauch]

No, there is no way to add an indexer programmatically. I'm working on MODE-2285 right now, and am testing a fix I hope will be sufficient. If that works, I'll create a pull-request, which you may want to get, build locally, and then test.

[rhauch]

See MODE-2285 for an update, including a new PR with a proposed fix. The PR will likely be reviewed and merged very early next week, and will appear in the Beta2.

[ma6rl]

I'm still seeing issues, they are on restart now not on the initial start-up. I have updated the JIRA with the latest information.