alopresto commented on a change in pull request #4154: NIFI-7271 Make command 
timeout configurable for ShellUserGroupProvider
URL: https://github.com/apache/nifi/pull/4154#discussion_r396839409
 
 

 ##########
 File path: 
nifi-nar-bundles/nifi-framework-bundle/nifi-framework/nifi-shell-authorizer/src/main/java/org/apache/nifi/authorization/ShellUserGroupProvider.java
 ##########
 @@ -339,6 +347,26 @@ private long 
getDelayProperty(AuthorizerConfigurationContext authContext, String
         return syncInterval;
     }
 
+    private int getTimeoutProperty(AuthorizerConfigurationContext authContext, 
String propertyName, String defaultValue) {
+        final PropertyValue timeoutProperty = 
authContext.getProperty(propertyName);
+
+        final String propertyValue;
+        if (timeoutProperty.isSet()) {
+            propertyValue = timeoutProperty.getValue();
+        } else {
+            propertyValue = defaultValue;
+        }
+
+        final long timeoutValue;
+        try {
+            timeoutValue = 
Math.round(FormatUtils.getPreciseTimeDuration(propertyValue, TimeUnit.SECONDS));
+        } catch (final IllegalArgumentException ignored) {
+            throw new AuthorizerCreationException(String.format("The %s '%s' 
is not a valid time interval.", propertyName, propertyValue));
 
 Review comment:
   Sounds good. 

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