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From Simone Tripodi <simonetrip...@apache.org>
Subject Re: [Graph] Kruskal's algorithm doesn't accept sparse graph
Date Tue, 31 Jan 2012 10:09:28 GMT
Hi again,
patch applied, tests run like  a charme, see issue resolution for details :)
Thanks!
-Simo

http://people.apache.org/~simonetripodi/
http://simonetripodi.livejournal.com/
http://twitter.com/simonetripodi
http://www.99soft.org/



On Tue, Jan 31, 2012 at 10:56 AM, Simone Tripodi
<simonetripodi@apache.org> wrote:
> Hi Marco,
>
> great. I'm going to review the patch right now, let's keep updated!
>
> -Simo
>
> http://people.apache.org/~simonetripodi/
> http://simonetripodi.livejournal.com/
> http://twitter.com/simonetripodi
> http://www.99soft.org/
>
>
>
> On Mon, Jan 30, 2012 at 11:38 PM, Marco Speranza
> <marco.speranza79@gmail.com> wrote:
>> Hi guys,
>>
>> I found a little problem into Kruskal's algorithm when the input graph is
>> not connected and/or  it's a graph without the edges.
>> I created  atest case that produces this error:
>>
>> Running org.apache.commons.graph.spanning.KruskalTestCase
>> Tests run: 2, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 0.096 sec
>> <<< FAILURE!
>> verifyNotConnectedMinimumSpanningTree(org.apache.commons.graph.spanning.KruskalTestCase)
>>  Time elapsed: 0.007 sec  <<< ERROR!
>> java.util.NoSuchElementException
>>        at java.util.AbstractQueue.remove(AbstractQueue.java:90)
>>        at
>> org.apache.commons.graph.spanning.DefaultSpanningTreeAlgorithmSelector.applyingKruskalAlgorithm(DefaultSpanningTreeAlgorithmSelector.java:87)
>>
>> I created a issue into Jira (SANDBOX-374)  and I attached a patch that
>> resolves the problem.
>>
>> heve a nice day :)
>>
>> --
>> Marco Speranza <marco.speranza79@gmail.com>
>>
>> Flickr: http://www.flickr.com/photos/marcosperanza79/
>> Google Code: http://code.google.com/u/marco.speranza79/
>>
>>
>>
>>

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