[
https://issues.apache.org/jira/browse/SOLR-1675?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Matt Inger updated SOLR-1675:
-----------------------------
Description:
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
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:620)
at
java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
at java.net.URLClassLoader.access$100(URLClassLoader.java:56)
at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
at
org.mortbay.jetty.webapp.WebAppClassLoader.loadClass(WebAppClassLoader.java:375)
at java.lang.ClassLoader.loadClass(ClassLoader.java:299)
at java.net.FactoryURLClassLoader.loadClass(URLClassLoader.java:579)
at java.lang.ClassLoader.loadClass(ClassLoader.java:299)
at java.net.FactoryURLClassLoader.loadClass(URLClassLoader.java:579)
at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:242)
at
org.apache.solr.core.SolrResourceLoader.findClass(SolrResourceLoader.java:357)
at
org.apache.solr.handler.dataimport.DocBuilder.loadClass(DocBuilder.java:728)
at
org.apache.solr.handler.dataimport.EntityProcessorWrapper.loadTransformers(EntityProcessorWrapper.java:103)
{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.
was:
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.
> 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
> at java.lang.ClassLoader.defineClass1(Native Method)
> at java.lang.ClassLoader.defineClass(ClassLoader.java:620)
> at
> java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
> at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
> at java.net.URLClassLoader.access$100(URLClassLoader.java:56)
> at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
> at java.security.AccessController.doPrivileged(Native Method)
> at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
> at
> org.mortbay.jetty.webapp.WebAppClassLoader.loadClass(WebAppClassLoader.java:375)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:299)
> at java.net.FactoryURLClassLoader.loadClass(URLClassLoader.java:579)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:299)
> at java.net.FactoryURLClassLoader.loadClass(URLClassLoader.java:579)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
> at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
> at java.lang.Class.forName0(Native Method)
> at java.lang.Class.forName(Class.java:242)
> at
> org.apache.solr.core.SolrResourceLoader.findClass(SolrResourceLoader.java:357)
> at
> org.apache.solr.handler.dataimport.DocBuilder.loadClass(DocBuilder.java:728)
> at
> org.apache.solr.handler.dataimport.EntityProcessorWrapper.loadTransformers(EntityProcessorWrapper.java:103)
> {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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