[UIMA-3093] Specifying other classes, such as FileResourceSpecifier_impl, as resource specifiers causes IllegalClassException when binding

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.0.0uimaFIT
• Component/s: uimaFIT
• Assignee: Richard Eckart de Castilho
• Reporter: Richard Eckart de Castilho
• Created: 20/Jul/13 15:09
• Updated: 20/Jul/13 15:10
• Resolved: 20/Jul/13 15:10

Description

I'm working with ConceptMapper, which means I need to attach a FileResourceSpecifier to the external dictionary resource (it only took me most of the day to work this out).

The relevant bits of code are something like this:

AnalysisEngineDescription aed = AnalysisEngineFactory.createAnalysisEngineDescription(
"analysis_engine.descriptor_name");
ExternalResourceDescription dictRes =
ExternalResourceFactory.createExternalResourceDescription(
"DictionaryFileName", DictionaryResource_impl.class, "someURL");
FileResourceSpecifier frSpec = new FileResourceSpecifier_impl();
frSpec.setFileUrl("file:testDict.xml");
dictRes.setResourceSpecifier(frSpec);
ExternalResourceFactory.bindExternalResource(aed,
ConceptMapper.PARAM_DICT_FILE, dictRes)

This gets an IllegalClassException:

org.apache.commons.lang.IllegalClassException: Unsupported resource specifier class [class org.apache.uima.resource.impl.FileResourceSpecifier_impl]
at org.uimafit.factory.ConfigurationParameterFactory.canParameterBeSet(ConfigurationParameterFactory.java:584)
at org.uimafit.factory.ExternalResourceFactory.bindNestedResources(ExternalResourceFactory.java:839)

I think this is a spurious error; I've wrapper the call to .canParameterBeSet() in a try/catch, and it seems to work fine (I've now got another unrelated downstream problem, so I can't promise yet, but will update when I do know more)

See also: https://code.google.com/p/uimafit/issues/detail?id=133