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https://issues.apache.org/jira/browse/CAMEL-4308?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Claus Ibsen reassigned CAMEL-4308:
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Assignee: Claus Ibsen
> commons-dbcp bundle used in camel feature.xml doesn't allow dynamic imports
> ---------------------------------------------------------------------------
>
> Key: CAMEL-4308
> URL: https://issues.apache.org/jira/browse/CAMEL-4308
> Project: Camel
> Issue Type: Improvement
> Reporter: Freeman Fang
> Assignee: Claus Ibsen
> Attachments: CAMEL-4308.patch
>
>
> currently the commons-dbcp bundle used in camel feature.xml doesn't allow
> dynamic imports, it will cause exception like
> org.apache.commons.dbcp.SQLNestedException: Cannot load JDBC driver class
> 'oracle.jdbc.driver.OracleDriver'
> as
> JDBC driver class not found actually is a common issue in OSGi container,
> this problem generally from a bundle(let's say it bundle A, commons-dbcp in
> this case) using some code like classForName(jdbc_driver_classname) to init a
> jdbc driver class, this is a big problem in OSGi world, as if BundleA not
> import package for jdbc_driver_classname, we'll see the problem. However
> BundleA actually can't know about package name for jdbc_driver_classname
> beforehand, as the jdbc_driver_classname generally is passed in through
> configuration during runtime, it can't be determined during build time, so we
> can't add correct package import when we generate bundle A.
> The general solution is
> 1. add dynamic import for bundle A(commons-dbcp)
> or
> 2. create JDBC driver as a fragment bundle, and attach it to bundle A(bundle
> A is host bundle now), so that all resource from fragment bundle is available
> for the host bundle.
> Solution 1 left less effort for end user and n servicemix wrapped
> commons-dbcp bundle we already have dynamic-import header and I think camel
> features should use the servicemix wrapped commons-dbcp bundle as well.
> I will append a patch soon.
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