[jira] Updated: (SOLR-1675) Placing Custom Transform in example/lib directory does not work properly

["Matt Inger (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SOLR-1675?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Matt Inger updated SOLR-1675:
-----------------------------

    Attachment: SqlArrayTransformer.java

Attaching the transformer class for transforming the javax.sql.Array instance to a java.lang.Object[] instance for a multi valued field.

> Placing Custom Transform in example/lib directory does not work properly
> ------------------------------------------------------------------------
>
>                 Key: SOLR-1675
>                 URL: https://issues.apache.org/jira/browse/SOLR-1675
>             Project: Solr
>          Issue Type: Bug
>          Components: contrib - DataImportHandler
>    Affects Versions: 1.4
>            Reporter: Matt Inger
>            Priority: Blocker
>         Attachments: SqlArrayTransformer.java
>
>
> I have created a Custom transformer for transforming a javax.sql.Array instance into a java.lang.Object[] value, and placed it in the example/lib directory.  I then configured the transformer appropriately in my db-data-config.xml:
> {code}
> <entity ...
> transformer="org.apache.solr.handler.dataimport.SqlArrayTransformer"
> {code}
> However, when i try to actually index my documents, i get the following error in the console:
> {code}
> org.apache.solr.handler.dataimport.DataImportHandlerException: java.lang.NoClassDefFoundError: org/apache/solr/handler/dataimport/Transformer
> 	at org.apache.solr.handler.dataimport.DocBuilder.buildDocument(DocBuilder.java:424)
> 	at org.apache.solr.handler.dataimport.DocBuilder.doFullDump(DocBuilder.java:242)
> 	at org.apache.solr.handler.dataimport.DocBuilder.execute(DocBuilder.java:180)
> 	at org.apache.solr.handler.dataimport.DataImporter.doFullImport(DataImporter.java:331)
> 	at org.apache.solr.handler.dataimport.DataImporter.runCmd(DataImporter.java:389)
> 	at org.apache.solr.handler.dataimport.DataImporter$1.run(DataImporter.java:370)
> Caused by: java.lang.NoClassDefFoundError: org/apache/solr/handler/dataimport/Transformer
> {code}
> It seems there is some issue with the classloader going on here, and the only solution to this problem seems to be to find the exploded web application in the "work" directory, and place the .jar file for my transformer in the WEB-INF/lib directory there.  My guess is that the classloader for the custom transformer class is not using the web application's class loader as it's parent classloader, and as a result, the Transformer class can't be found.
> I believe I tried this in 1.5-dev as well and had no success either.

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