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Re: [netrexx-pipelines] compare - ClassCastException
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From: Jeff H. <Je...@Je...> - 2020-09-18 19:30:40
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<p>René & Colin,</p>
<p>I have just altered the compare stage so it does the type cast on
its inputs.</p>
<p>Jeff<br>
</p>
<div class="moz-cite-prefix">On 9/18/2020 1:29 PM, ColinK wrote:<br>
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cite="mid:3bb...@im...">
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<font face="Century Gothic">Thanks Rene<br>
<br>
Turns out the problem was not in compare but in the stage prior
to compare. It was outputting a java String response instead of
a Rexx response. It is interesting that the prior stage
(hostbyname, in this case) had always done this but only now did
compare complain. I will get the updated version of hostbyname
committed shortly.<br>
<br>
Cheers<br>
Colin<br>
</font><br>
<div class="moz-cite-prefix">On 2020-09-17 16:07, René Jansen
wrote:<br>
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cite="mid:A23...@xs...">
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Hi Colin,
<div><br>
</div>
<div>You can put a Rexx in front of it; also, we need to look at
sort to maybe convert it to Rexx only.<br>
<br>
<div dir="ltr">René.</div>
<div dir="ltr"><br>
<blockquote type="cite">On 18 Sep 2020, at 00:16, ColinK <a
class="moz-txt-link-rfc2396E"
href="mailto:ibm...@im..."
moz-do-not-send="true"><ibm...@im...></a>
wrote:<br>
<br>
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Hello<br>
<br>
I have been updating my hostbyname.nrx stage so that it
sorts the IP addresses returned (as DNS does not guarantee
the same order in response). This will hopefully get
around some false negative unit testing issues. It
appears to be working fine but I am now running into an
issue with compare.<br>
<br>
==> Without compare stage<br>
<br>
<tt>Z:\GIT\netrexx-dev\bin>pipc hbntest00</tt><tt><br>
</tt><tt>pipe (hbntest00 ) literal dns.google example.com
bogus.bogus one.one.one.one | split | hostbyname |
console</tt><tt><br>
</tt><tt><br>
</tt><tt>Z:\GIT\netrexx-dev\bin>java hbntest00</tt><tt><br>
</tt><tt>8.8.4.4 8.8.8.8</tt><tt><br>
</tt><tt>93.184.216.34</tt><tt><br>
</tt><tt># Input record 3: Unable to determine IP address
for bogus.bogus #</tt><tt><br>
</tt><tt>1.0.0.1 1.1.1.1</tt><br>
<br>
==> With compare stage<br>
<tt><br>
</tt><tt>Z:\GIT\netrexx-dev\bin>pipc hbntest1</tt><tt><br>
</tt><tt>pipe (hbntest1 ) literal dns.google | hostbyname
| console | compare: compare equal /PASS/ notequal
/FAIL/ | console ? literal 8.8.4.4 8.8.8.8 | compare:</tt><tt><br>
</tt><tt><br>
</tt><tt>Z:\GIT\netrexx-dev\bin>java hbntest1</tt><tt><br>
</tt><tt>8.8.4.4 8.8.8.8</tt><tt><br>
</tt><tt>java.lang.ClassCastException: java.lang.String
cannot be cast to netrexx.lang.Rexx</tt><tt><br>
</tt><tt> at
org.netrexx.njpipes.stages.compare.run(<b>compare.java:128</b>)</tt><tt><br>
</tt><tt> at
org.netrexx.njpipes.pipes.ThreadPool.run(ThreadPool.java:60)</tt><tt><br>
</tt><tt> at java.lang.Thread.run(Thread.java:748)</tt><tt><br>
</tt><tt>Exiting due to uncaught Exception
java.lang.String cannot be cast to netrexx.lang.Rexx</tt><br>
<br>
Looking at
\build\classes\org\netrexx\njpipes\stages\compare.java I
see the following around line 128<br>
<br>
<div><ojigobehihnhlgjj.png></div>
<br>
<br>
The compare.nrx source around that spot is:<br>
<br>
<div><bifefgpdfoblncip.png></div>
<br>
<br>
If I am reading this correctly the issue appears to be
around the variables "key" or "ds". Since their type is
not "pre-declared" I presume they would default to type
Rexx. Is that a fair statement? I guess I am not seeing
how java.lang.String is coming into the picture. <br>
<br>
Am I traveling down the right path here or am totally
out-to-lunch? :-)<br>
<br>
Thanks<br>
Colin<br>
<br>
<br>
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