pvillard31 commented on code in PR #11130:
URL: https://github.com/apache/nifi/pull/11130#discussion_r3262077713
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nifi-framework-bundle/nifi-framework/nifi-framework-core-api/src/main/java/org/apache/nifi/parameter/ParameterContext.java:
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@@ -188,4 +188,22 @@ public interface ParameterContext extends ParameterLookup,
ComponentAuthorizable
* @return True if this inherits from the given ParameterContext
*/
boolean inheritsFrom(String parameterContextId);
+
+ /**
+ * Extracts the referenced parameter name from a one-to-one parameter
value reference.
+ * A one-to-one reference is a parameter value whose entire content is
exactly <code>#{parameterName}</code>
+ * with no surrounding text.
+ *
+ * @param value the parameter value to check
+ * @return the referenced parameter name if the value is a one-to-one
reference, or null otherwise
+ */
+ static String extractOneToOneParameterReference(final String value) {
+ if (value == null || value.length() < 4) {
+ return null;
+ }
+ if (value.startsWith("#{") && value.endsWith("}") &&
value.indexOf('}') == value.length() - 1) {
Review Comment:
Yeah, fair, I went for the easiest approach but you're absolutely right,
especially with provided parameters, we may have names where simple quoting
will be cleaner.
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