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From "Gian Marco Tagliani" <gmtagli...@grupointercom.com>
Subject DIH $skipDoc issue
Date Thu, 04 Feb 2010 18:47:14 GMT
Hi all,
I'm using the version 1.4.0 of Solr and I'm having some trouble with the
DIH when I use the special command $skipDoc.

After skipping a document to insert, the next one is not inserted in the
proper way.


My DIH configuration is quite complex so I'll try to explain myself with
a simpler example:

item table:
id 	name
1	aaa
2	bbb

feature table:
Item_id	hidden
1		true
2 		false


DIH conf:

<document name="products">
	<entity name="item" query="select * from item">
		<field column="ID" name="id" />
		<field column="NAME" name="name" />

		<entity name="feature" query="select hidden from feature
where item_id='${item.ID}'">
			<field name="$skipDoc" column="hidden" />
		</entity>
	</entity>
</document>


The result I expected is that the record named "bbb" would be imported,
but the result of my import case is that the other record (the "aaa")
has been inserted.


I took a look to the DIH code and I found a possible problem that could
cause this result. 
In the DocBuilder class when a $skipDoc is detected, an exception is
raised. After handling the exception another loop starts, without
cleaning up the doc variable.
When the next record is read, the addFieldToDoc method can't fill the
doc fields because they are already filled.

To solve this problem I just clean up the doc variable when handling the
exception.
The patch with this tiny change is attached to this mail.

Did anybody else encounter this problem?
Is the change I did correct?


Thanks
Gian Marco Tagliani

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