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https://issues.apache.org/jira/browse/NIFI-4272?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Matthew Clarke updated NIFI-4272:
---------------------------------
Description:
I am using the ReplaceText processor to take a string input (example:
{"name":"Smith","middle":"nifi","firstname":"John"} ) and change all the filed
names to all uppercase.
Using above input as an example, I expect output like
{"NAME":"Smith","MIDDLE":"nifi","FIRSTNAME":"John"}
I expect I should be able to do this with ReplaceText processor; however, I see
some unexpected behavior:
-------
Test 1: (uses EL in the replacement value property)
Search value: \"([a-z]+?)\":\"(.+?)\"
Replacement Value: \"*${'$1':toUpper()}*":\"$2\"
Result: {"NAME":"Smith","NAME":"nifi","NAME":"John"}
-------
Test 2: (Does not use EL in the replacement Value property)
Search value: \"([a-z]+?)\":\"(.+?)\"
Replacement Value: \"new$1":\"$2\"
Result: {"newname":"Smith","newmiddle":"nifi","newfirstname":"John"}
--------
As you can see if I use a NiFi expression Language statement in the Replacement
Value property it no longer iterates as expect through the various $1 captured
values. It repeatedly uses the EL result from the first EL evaluation in every
iteration while $2 correctly iterates through the search values.
was:
I am using the ReplaceText processor to take a spring input (example:
{"name":"Smith","middle":"nifi","firstname":"John"} ) and change all the filed
names to all uppercase.
Using above input as an example, I expect output like
{"NAME":"Smith","MIDDLE":"nifi","FIRSTNAME":"John"}
I expect I should be able to do this with ReplaceText processor; however, I see
some unexpected behavior:
-------
Test 1: (uses EL in the replacement value property)
Search value: \"([a-z]+?)\":\"(.+?)\"
Replacement Value: \"*${'$1':toUpper()}*":\"$2\"
Result: {"NAME":"Smith","NAME":"nifi","NAME":"John"}
-------
Test 2: (Does not use EL in the replacement Value property)
Search value: \"([a-z]+?)\":\"(.+?)\"
Replacement Value: \"new$1":\"$2\"
Result: {"newname":"Smith","newmiddle":"nifi","newfirstname":"John"}
--------
As you can see if I use a NiFi expression Language statement in the Replacement
Value property it no longer iterates as expect through the various $1 captured
values. It repeatedly uses the EL result from the first EL evaluation in every
iteration while $2 correctly iterates through the search values.
> ReplaceText processor does not properly iterate multiple replacement values
> when EL is used
> -------------------------------------------------------------------------------------------
>
> Key: NIFI-4272
> URL: https://issues.apache.org/jira/browse/NIFI-4272
> Project: Apache NiFi
> Issue Type: Bug
> Components: Core Framework
> Affects Versions: 1.1.0, 1.2.0, 1.3.0
> Reporter: Matthew Clarke
>
> I am using the ReplaceText processor to take a string input (example:
> {"name":"Smith","middle":"nifi","firstname":"John"} ) and change all the
> filed names to all uppercase.
> Using above input as an example, I expect output like
> {"NAME":"Smith","MIDDLE":"nifi","FIRSTNAME":"John"}
> I expect I should be able to do this with ReplaceText processor; however, I
> see some unexpected behavior:
> -------
> Test 1: (uses EL in the replacement value property)
> Search value: \"([a-z]+?)\":\"(.+?)\"
> Replacement Value: \"*${'$1':toUpper()}*":\"$2\"
> Result: {"NAME":"Smith","NAME":"nifi","NAME":"John"}
> -------
> Test 2: (Does not use EL in the replacement Value property)
> Search value: \"([a-z]+?)\":\"(.+?)\"
> Replacement Value: \"new$1":\"$2\"
> Result: {"newname":"Smith","newmiddle":"nifi","newfirstname":"John"}
> --------
> As you can see if I use a NiFi expression Language statement in the
> Replacement Value property it no longer iterates as expect through the
> various $1 captured values. It repeatedly uses the EL result from the first
> EL evaluation in every iteration while $2 correctly iterates through the
> search values.
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