@kkhatua
To avoid this unpleasant parsing I would suggest you add method to
`FunctionRegistryHolder` which would return `ListMultimap<String,
DrillFuncHolder>`, where key would be jar_name, value would be list of function
holders. Let's call it `getAllFunctionsByJars` (name can be changed). Then in
`LocalFunctionRegistry` add delegating method:
```
public ListMultimap<String, DrillFuncHolder> getAllFunctionsByJars() {
return registryHolder.getAllFunctionsByJars();
}
```
Then in `FunctionImplementationRegistry` add the following method:
```
public ListMultimap<String, DrillFuncHolder> getAllFunctionsByJars() {
if (useDynamicUdfs) {
syncWithRemoteRegistry(localFunctionRegistry.getVersion());
}
return localFunctionRegistry.getAllFunctionsByJars();
}
```
The above you would get you full list of built-in and remote functions
Unit test can be added to `FunctionRegistryHolderTest` for the new method.
[ Full content available at: https://github.com/apache/drill/pull/1483 ]
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