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Explorer

Re: How to use NiFi Expression Language with Extra...

by Explorer in Support Questions
‎09-27-2021 03:23 PM
‎09-27-2021 03:23 PM
Hi Matt,   Thanks for the help and the useful pointers! Is it possible to extend the ExtractText class and create a custom NAR that is able to use NEL? Otherwise it looks like I'm back to developing in Python.   Thank you, Dave ... View more

Re: How to use NiFi Expression Language with Extra...

by Explorer in Support Questions
‎09-27-2021 08:35 AM
‎09-27-2021 08:35 AM
I've noted this in the documentation:   "A FlowFile attribute A Regular Expression with one or more capturing group The first capture group, if any found, will be placed into that attribute name. But all capture groups, including the matching string sequence itself will also be provided at that attribute name with an index value provided. Supports Expression Language: false"   Is there not a boolean to toggle this on? ... View more

How to use NiFi Expression Language with ExtractTe...

by Explorer in Support Questions
‎09-27-2021 06:51 AM
‎09-27-2021 06:51 AM
I'm trying to use NiFi expression language with a custom property on the ExtractText processor. It appears that the ExtractText processor interprets the value literally and does not interpolate the value. Is there a way to achieve this?         java.util.regex.PatternSyntaxException: Illegal repetition near index 2 ${start} ^ at java.base/java.util.regex.Pattern.error(Pattern.java:2028) at java.base/java.util.regex.Pattern.closure(Pattern.java:3374) at java.base/java.util.regex.Pattern.sequence(Pattern.java:2229) at java.base/java.util.regex.Pattern.expr(Pattern.java:2069) at java.base/java.util.regex.Pattern.compile(Pattern.java:1783) at java.base/java.util.regex.Pattern.<init>(Pattern.java:1430) at java.base/java.util.regex.Pattern.compile(Pattern.java:1095) at org.apache.nifi.processors.standard.ExtractText.onScheduled(ExtractText.java:366) at jdk.internal.reflect.GeneratedMethodAccessor483.invoke(Unknown Source) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:564) at org.apache.nifi.util.ReflectionUtils.invokeMethodsWithAnnotations(ReflectionUtils.java:145) at org.apache.nifi.util.ReflectionUtils.invokeMethodsWithAnnotations(ReflectionUtils.java:133) at org.apache.nifi.util.ReflectionUtils.invokeMethodsWithAnnotations(ReflectionUtils.java:78) at org.apache.nifi.util.ReflectionUtils.invokeMethodsWithAnnotation(ReflectionUtils.java:55) at org.apache.nifi.controller.StandardProcessorNode.lambda$initiateStart$4(StandardProcessorNode.java:1582) at org.apache.nifi.engine.FlowEngine$3.call(FlowEngine.java:123) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630) at java.base/java.lang.Thread.run(Thread.java:832) ... View more
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