ijokarumawak commented on a change in pull request #3504: NIFI-6318: Support EL
in CSV formatting properties
URL: https://github.com/apache/nifi/pull/3504#discussion_r305182638
##########
File path:
nifi-nar-bundles/nifi-extension-utils/nifi-record-utils/nifi-standard-record-utils/src/main/java/org/apache/nifi/csv/CSVUtils.java
##########
@@ -190,57 +208,91 @@ public static CSVFormat createCSVFormat(final
PropertyContext context) {
}
}
- private static char getUnescapedChar(final PropertyContext context, final
PropertyDescriptor property) {
- return
StringEscapeUtils.unescapeJava(context.getProperty(property).getValue()).charAt(0);
+ private static Character getCharUnescapedJava(final PropertyContext
context, final PropertyDescriptor property, final Map<String, String>
variables) {
+ String value =
context.getProperty(property).evaluateAttributeExpressions(variables).getValue();
+
+ if (value != null) {
+ String unescaped = unescapeJava(value);
+ if (unescaped.length() == 1) {
+ return unescaped.charAt(0);
+ }
+ }
+
+ LOG.warn("'{}' property evaluated to an invalid value: \"{}\". It must
be a single character. The property value will be skipped.",
property.getName(), value);
Review comment:
> The property value will be skipped.
"The property value will be ignored." may sound more intuitive in this
context.
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