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SOLR-1612 use isAssignablefrom() and catch noSuchmethodException 

git-svn-id: https://svn.apache.org/repos/asf/lucene/solr/trunk@886690 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Noble Paul 2009-12-03 07:36:42 +00:00
parent d71fd08b71
commit 801f30a955
1 changed files with 9 additions and 12 deletions
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21
contrib/dataimporthandler/src/main/java/org/apache/solr/handler/dataimport/EntityProcessorWrapper.java
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@ -101,24 +101,21 @@ public class EntityProcessorWrapper extends EntityProcessor {
}
try {
Class clazz = DocBuilder.loadClass(trans, context.getSolrCore());
if (clazz.newInstance() instanceof Transformer) {
if (Transformer.class.isAssignableFrom(clazz)) {
transformers.add((Transformer) clazz.newInstance());
} else {
final Method meth = clazz.getMethod(TRANSFORM_ROW, Map.class);
if (meth == null) {
String msg = "Transformer :"
+ trans
+ "does not implement Transformer interface or does not have a transformRow(Map m)method";
log.error(msg);
throw new DataImportHandlerException(
SEVERE, msg);
}
Method meth = clazz.getMethod(TRANSFORM_ROW, Map.class);
transformers.add(new ReflectionTransformer(meth, clazz, trans));
}
} catch (NoSuchMethodException nsme){
String msg = "Transformer :"
+ trans
+ "does not implement Transformer interface or does not have a transformRow(Map<String.Object> m)method";
log.error(msg);
wrapAndThrow(SEVERE, nsme,msg);
} catch (Exception e) {
log.error("Unable to load Transformer: " + aTransArr, e);
throw new DataImportHandlerException(SEVERE,
e);
wrapAndThrow(SEVERE, e,"Unable to load Transformer: " + trans);
}
}