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NIFI-6320. This closes #3494. Added a check whereby, if the user is using the "Use Segment Names" option in the ExtractHL7Attributes processor and the HL7 message being processed contains custom user segments (e.g., Z Segments), the code will downgrade to returning the Segment Label as it does when this option is not used. Without this a null pointer is thrown at line 288.

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Signed-off-by: Joe Witt <joewitt@apache.org>
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Gary Teichrow 2019-05-24 17:41:11 -07:00 committed by Joe Witt
parent fa1ed16e2b
commit 15b0f1cfc2
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1 changed files with 6 additions and 2 deletions
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nifi-nar-bundles/nifi-hl7-bundle/nifi-hl7-processors/src/main/java/org/apache/nifi/processors/hl7/ExtractHL7Attributes.java
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@ -284,8 +284,12 @@ public class ExtractHL7Attributes extends AbstractProcessor {
final Type field = segment.getField(i, 0);
if (!isEmpty(field)) {
final String fieldName;
if (useNames) {
fieldName = WordUtils.capitalize(segmentNames[i-1]).replaceAll("\\W+", "");
//Some user defined segments (e.g. Z segments) will not have corresponding names returned
//from segment.getNames() above. If we encounter one of these, do the next best thing
//and return what we otherwise would if we were not in useNames mode.
String segmentName = segmentNames[i-1];
if (useNames && StringUtils.isNotBlank(segmentName)) {
fieldName = WordUtils.capitalize(segmentName).replaceAll("\\W+", "");
} else {
fieldName = String.valueOf(i);
}