Github user cestella commented on a diff in the pull request:
https://github.com/apache/incubator-metron/pull/333#discussion_r85824225
--- Diff:
metron-platform/metron-common/src/main/java/org/apache/metron/common/dsl/functions/NetworkFunctions.java
---
@@ -232,10 +237,15 @@ private static URL toUrl(Object urlObj) {
if(urlObj == null) {
return null;
}
- try {
- return new URL(urlObj.toString());
- } catch (MalformedURLException e) {
- return null;
+ if(urlObj instanceof String) {
+ try {
+ return new URL(urlObj.toString());
+ } catch (MalformedURLException e) {
--- End diff --
I'm treating a distinction here between a type or syntactic error which is
likely a configuration error and should be immediately percolated up versus a
semantic error (the data is malformed, but still of the proper type) which
should be allowed to pass. It's not necessarily an error. You could have a
source which contains a `url` field which is not populated or populated with a
default value, so you'd expect the processed fields to also be null.
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