Hi,
How I noticed this:
I wanted to execute python scripts dynamically == using flowfile arguments,
but I got FileNotFoundException.
Caused by: java.util.concurrent.ExecutionException:
java.lang.reflect.InvocationTargetException
at java.util.concurrent.FutureTask.report(FutureTask.java:122)
at java.util.concurrent.FutureTask.get(FutureTask.java:206)
at
org.apache.nifi.controller.StandardProcessorNode.invokeTaskAsCancelableFuture(StandardProcessorNode.java:1465)
... 9 common frames omitted
Caused by: java.lang.reflect.InvocationTargetException: null
at sun.reflect.GeneratedMethodAccessor542.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at
org.apache.nifi.util.ReflectionUtils.invokeMethodsWithAnnotations(ReflectionUtils.java:137)
at
org.apache.nifi.util.ReflectionUtils.invokeMethodsWithAnnotations(ReflectionUtils.java:125)
at
org.apache.nifi.util.ReflectionUtils.invokeMethodsWithAnnotations(ReflectionUtils.java:70)
at
org.apache.nifi.util.ReflectionUtils.invokeMethodsWithAnnotation(ReflectionUtils.java:47)
at
org.apache.nifi.controller.StandardProcessorNode$1$1.call(StandardProcessorNode.java:1307)
at
org.apache.nifi.controller.StandardProcessorNode$1$1.call(StandardProcessorNode.java:1303)
... 6 common frames omitted
Caused by: org.apache.nifi.processor.exception.ProcessException:
java.io.FileNotFoundException: (No such file or directory)
at
org.apache.nifi.processors.script.ExecuteScript.setup(ExecuteScript.java:160)
... 15 common frames omitted
Caused by: java.io.FileNotFoundException: (No such file or directory)
at java.io.FileInputStream.open0(Native Method)
at java.io.FileInputStream.open(FileInputStream.java:195)
at java.io.FileInputStream.<init>(FileInputStream.java:138)
at java.io.FileInputStream.<init>(FileInputStream.java:93)
at
org.apache.nifi.processors.script.ExecuteScript.setup(ExecuteScript.java:155)
... 15 common frames omitted
After some digging I found the possible cause:
https://github.com/apache/nifi/blob/master/nifi-nar-bundles/nifi-scripting-bundle/nifi-scripting-processors/src/main/java/org/apache/nifi/script/ScriptingComponentHelper.java
Line 288:
scriptPath =
context.getProperty(ScriptingComponentUtils.SCRIPT_FILE).evaluateAttributeExpressions().getValue();
>From what I figured out from Matt's answer to a post (link below) there
should be a flowfile argument inside "..evaluateAttributeExpressions()"
https://community.hortonworks.com/questions/22448/apache-nifi-custom-processor-expression-language.html?childToView=22470#answer-22470
i.e.
scriptPath =
context.getProperty(ScriptingComponentUtils.SCRIPT_FILE).evaluateAttributeExpressions(<FLOW
FILE>).getValue();
Thanks,
Martin
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