Re: Re: dose nifi suport Regular Expression capturing groups text using Nifi Expression Language

2017-10-01 Thread YuNing 

it realy helps me, thanks James. can you give some tips on how can i get 
more specific document about how to use a processor, as the doc on nifi-website 
is very simple. 



Best Regards
YuNing
 
From: James Wing
Date: 2017-10-01 00:18
To: NiFi Dev List
Subject: Re: dose nifi suport Regular Expression capturing groups text using 
Nifi Expression Language
I believe the Replacement Value field should be set to something like this:
 
${'$1':jsonPath("$.data.orgcode")}
 
We may be able to help more if you can provide some sample content and
regular expression you are using.
 
Thanks,
 
James
 
 
On Fri, Sep 29, 2017 at 7:16 PM, YuNing <bel...@163.com> wrote:
 
>
> when i use replace text i want to use  :jsonPath('')  funciton for
> Regular Expression capturing group; the Replacement Value   i set is
> "$1:jsonPath('$.data.orgcode')", but it didn't work.
> i didn't want  to use EvaluateJsonPath , because it couldn't evalue
> mulit-line  json sting,can anyone help me.
>
> wait for your early replay!
>
>
>
>
> Best Regards
> YuNing
>

dose nifi suport Regular Expression capturing groups text using Nifi Expression Language

2017-09-29 Thread YuNing 

when i use replace text i want to use  :jsonPath('')  funciton for  Regular 
Expression capturing group; the Replacement Value   i set is 
"$1:jsonPath('$.data.orgcode')", but it didn't work.  
i didn't want  to use EvaluateJsonPath , because it couldn't evalue 
mulit-line  json sting,can anyone help me.

wait for your early replay!




Best Regards
YuNing

回复: How to reinstall NiFi

2017-09-25 Thread YuNing 
with the default configuration nfi store all it's data under the install folder 
(in your case is /opt/nifi). so you can delete '/opt/nifi' and reinstall.



Best Regards
YuNing
 
发件人： Lu boying
发送时间： 2017-09-25 19:51
收件人： dev@nifi.apache.org
主题： How to reinstall NiFi
Hi, All,
 
 
I'm using NiFi 1.3 (on Ubuntue Linux) and want to clean up all my data in NiFi.
 
My NiFi is installed under /opt/nifi.
 
 
Is it enough to just deleting everything under /opt/nifi and reinstall it?
 
 
Thanks
 
 
Boying

Re: Re: a question about nifi's source code

2017-08-13 Thread YuNing 
I fround the problem, recently. there is no existance check of tenants 
before doUpdateGroup() at the most recent version on github. but it checks at  
nifi-1.3.0 release version. you can see this at 
https://github.com/apache/nifi/blob/rel/nifi-1.3.0/nifi-framework-api/src/main/java/org/apache/nifi/authorization/AbstractPolicyBasedAuthorizer.java
 
and it doesn't seams to be a bug ,because everything just works fine.



Best Regards
YuNing
 
From: YuNing
Date: 2017-08-02 14:43
To: dev
Subject: Re: Re: a question about nifi's source code
Hi，Andy 
It seems I found the problems, I compare the sourcecode which i am viewing 
to the sourcecode on github, it appears to be different, and i am confused, 
because i didn't change it myslf, i will keep this update as long as i found 
the reason. 
thanks you very much.



Best Regards
YuNing
 
From: Andy LoPresto
Date: 2017-08-02 14:01
To: dev
Subject: Re: a question about nifi's source code
Hi YuNing,
 
The Abstract policy authorizer delegates the updateGroup action to 
doUpdateGroup, which is implemented by the extending concrete class. I'm not 
sure where you are seeing that it checks for the absence of the group, but 
there is an addGroup method for adding a new group. 
 
Andy LoPresto
alopre...@apache.org
alopresto.apa...@gmail.com
PGP Fingerprint: 70EC B3E5 98A6 5A3F D3C4  BACE 3C6E F65B 2F7D EF69
 
> On Aug 1, 2017, at 19:48, YuNing <bel...@163.com> wrote:
> 
> Hello，everyone
>I am work on reading nifi's source code . it confuse me when i read 
> the class "AbstractPolicyBasedAuthorizer", I found there is no method to add 
> a user to an existing group. I noticed there is an "updateGroup" method 
> ,which i don't think can be used to add users to existing group, because it 
> checks the input group to make sure it didn't exist.
>Am i right?  can anyone help me, thanks alot !
> 
> Best Regards
> YuNing
>

Date format method in NiFi Expression Language doesn't support negative timestamp

2017-08-09 Thread YuNing 
Hello，Everyone
   Now i found the date format method in NiFi Expression Language doesn't 
support negative timestamp which means the time before 1970.01.01 . Is there 
any idea on how to achieve this, and can I define my own  NiFi Expression 
Language.

Thanks for your early reply.



Best Regards
YuNing