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From: Pierre Villard <pierre.villard.fr@gmail.com>
Date: Wed, 28 Sep 2016 13:03:56 +0200
Message-ID: <CABgFv27M7yWqo1O9F1AQ0NpN0DkCsEQ6+v-Rr2BpANkOvnHWiw@mail.gmail.com>
Subject: Re: Remove top N lines from a text file
To: users@nifi.apache.org
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archived-at: Wed, 28 Sep 2016 11:04:44 -0000

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Hi Peter,

I would recommend you the following blog by Matt:
http://funnifi.blogspot.fr/2016/02/executescript-processor-replacing-flow.h=
tml

Pierre

2016-09-28 13:01 GMT+02:00 Andrew Grande <aperepel@gmail.com>:

> Groovy script or a simple sed command invoked via ExecuteStreamingCommand
> should do the job.
>
> Andrew
>
> On Wed, Sep 28, 2016, 12:18 AM Peter Wicks (pwicks) <pwicks@micron.com>
> wrote:
>
>> I have a CSV file where the first few lines are a summary of the report
>> parameters that were used to generate it. I want to strip these off in N=
iFi.
>>
>> I=E2=80=99ve considered using a RegEx to match the {N} top lines, but am
>> wondering of a Groovy script might be a better option?  I want to keep t=
he
>> file intact, so splitting it by line ending and routing all of the lines
>> through a RouteByAttribute seems excessive.
>>
>>
>>
>> I=E2=80=99ve never built a Groovy script, any examples on how I might go=
 about
>> this?
>>
>>
>>
>> Thanks,
>>
>>   Peter
>>
>

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<div dir=3D"ltr"><div><div>Hi Peter,<br><br></div>I would recommend you the=
 following blog by Matt:<br><a href=3D"http://funnifi.blogspot.fr/2016/02/e=
xecutescript-processor-replacing-flow.html">http://funnifi.blogspot.fr/2016=
/02/executescript-processor-replacing-flow.html</a><br><br></div>Pierre<br>=
</div><div class=3D"gmail_extra"><br><div class=3D"gmail_quote">2016-09-28 =
13:01 GMT+02:00 Andrew Grande <span dir=3D"ltr">&lt;<a href=3D"mailto:apere=
pel@gmail.com" target=3D"_blank">aperepel@gmail.com</a>&gt;</span>:<br><blo=
ckquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #c=
cc solid;padding-left:1ex"><p dir=3D"ltr">Groovy script or a simple sed com=
mand invoked via ExecuteStreamingCommand should do the job.</p><span class=
=3D"HOEnZb"><font color=3D"#888888">
<p dir=3D"ltr">Andrew</p></font></span><div class=3D"HOEnZb"><div class=3D"=
h5">
<br><div class=3D"gmail_quote"><div dir=3D"ltr">On Wed, Sep 28, 2016, 12:18=
 AM Peter Wicks (pwicks) &lt;<a href=3D"mailto:pwicks@micron.com" target=3D=
"_blank">pwicks@micron.com</a>&gt; wrote:<br></div><blockquote class=3D"gma=
il_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-lef=
t:1ex">


<div link=3D"#0563C1" vlink=3D"#954F72" lang=3D"EN-US">
<div>
<p class=3D"MsoNormal">I have a CSV file where the first few lines are a su=
mmary of the report parameters that were used to generate it. I want to str=
ip these off in NiFi.<u></u><u></u></p>
<p class=3D"MsoNormal">I=E2=80=99ve considered using a RegEx to match the {=
N} top lines, but am wondering of a Groovy script might be a better option?=
=C2=A0 I want to keep the file intact, so splitting it by line ending and r=
outing all of the lines through a RouteByAttribute
 seems excessive.<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">I=E2=80=99ve never built a Groovy script, any exampl=
es on how I might go about this?<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">Thanks,<u></u><u></u></p>
<p class=3D"MsoNormal">=C2=A0 Peter<u></u><u></u></p>
</div>
</div>

</blockquote></div>
</div></div></blockquote></div><br></div>

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