Github user ijokarumawak commented on a diff in the pull request:
https://github.com/apache/nifi/pull/1867#discussion_r122895895
--- Diff:
nifi-nar-bundles/nifi-email-bundle/nifi-email-processors/src/main/java/org/apache/nifi/processors/email/ConsumeEWS.java
---
@@ -403,7 +420,12 @@ public MimeMessage parseMessage(EmailMessage item)
throws Exception {
//sent date
mm.setSentDate(ewsMessage.getDateTimeSent());
//add message headers
- ewsMessage.getInternetMessageHeaders().forEach(x->
mm.addHeader(x.getName(), x.getValue()));
+ if(hdrList.size() > 0 && hdrList.get(0).equals("*"))
+ ewsMessage.getInternetMessageHeaders().forEach(x->
mm.addHeader(x.getName(), x.getValue()));
+ else if(hdrList.size() > 0)
+ ewsMessage.getInternetMessageHeaders().forEach(x-> {
+ if(hdrList.contains(x.getName()))
mm.addHeader(x.getName(), x.getValue());
+ });
--- End diff --
We maybe able to simplify this with:
```
ewsMessage.getInternetMessageHeaders().stream()
.filter(x -> (hdrList == null || hdrList.isEmpty() ||
hdrList.contains(x.getName)))
.forEach(x-> mm.addHeader(x.getName(), x.getValue());
```
Then we could add exclude list as well easily:
```
ewsMessage.getInternetMessageHeaders().stream()
.filter(x -> (includes == null || includes.isEmpty() ||
includes.contains(x.getName))
&& (excludes == null || excludes.isEmpty() ||
!excludes.contains(x.getName))
.forEach(x-> mm.addHeader(x.getName(), x.getValue());
```
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