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From Billie Rinaldi <billie.rina...@gmail.com>
Subject Re: Null source for iterator
Date Fri, 28 Feb 2014 14:58:02 GMT
You probably don't want to call deepCopy during init.  Also, if your
CustomFilter extends WrappingIterator, the above implementation of deepCopy
will not help because WrappingIterator.deepCopy throws
UnsupportedOperationException.  So maybe that's not the problem, anyway.

Are you calling super.init at the beginning of your init method?


On Fri, Feb 28, 2014 at 5:34 AM, Giordano, Michael <
Michael.Giordano@vistronix.com> wrote:

>  So after implementing deepCopy() (below) and calling it during init(), I
> still receive the same error
>
>
>
>        @Override
>
>        *public* SortedKeyValueIterator<Key,Value> deepCopy(
> IteratorEnvironment env)
>
>        {
>
>              System.out.*println*(String.*format*("%s.deepCopy() called",
> getClass().*getName*()));
>
>              *return* *super*.deepCopy(env);
>
>        }
>
>
>
> Is this implementation correct or am I missing something fundamental?
>
>
>
> Thanks,
>
> Mike G.
>
>
>
> *From:* Zachary Radtka [mailto:milk3422@invisibledefender.com]
> *Sent:* Thursday, February 27, 2014 2:04 PM
> *To:* user@accumulo.apache.org
> *Cc:* user@accumulo.apache.org
> *Subject:* Re: Null source for iterator
>
>
>
> Hey Michael, I ran into something similar when I didn't implement the
> deepcopy() method on my custom iterator. Inside the deepCopy method you
> will need to make sure you copy any options your iterator implements.
>
> On Thu, Feb 27, 2014 at 1:36 PM, Giordano, Michael <
> Michael.Giordano@vistronix.com> wrote:
>
>  Given this code :
>
>
>
> BatchScanner scanner = connector.createBatchScanner("tableName",
> authorizations, threadCount);
>
> IteratorSetting iterSetting = new IteratorSetting(10, "filterName",
> CustomFilter.class);
>
>
>
> iterSetting.addOption("option1", "value1");
>
> iterSetting.addOption("option2", "value2");
>
> scanner.addScanIterator(iterSetting);
>
>
>
> Iterator<Entry<Key,Value>> iter = scanner.iterator();
>
> iter.hasNext();
>
>
>
> I am receiving this exception when hasNext() is called :
>
>
>
> 2014-02-27 15:47:08,845 [thrift.ProcessFunction] ERROR: Internal error
> processing startMultiScan
>
> java.lang.RuntimeException: java.util.concurrent.ExecutionException:
> java.lang.IllegalStateException: getting null source
>
>
>
> The full stacktrace can be found at http://pastebin.com/nkpKnwAh
>
>
>
> If anyone can shed light on what I am doing wrong, I would deeply
> appreciate it.
>
>
>
> Thanks,
>
> Mike G.
>
>
>
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