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From "mac champion (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CRUNCH-491) Add an Xml File Source
Date Mon, 26 Jan 2015 21:21:35 GMT

    [ https://issues.apache.org/jira/browse/CRUNCH-491?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14292429#comment-14292429
] 

mac champion commented on CRUNCH-491:
-------------------------------------

I'm glad this input is getting more attention. I know of at least one group of people who
need distributed XML parsing. I tried to make a file source recently but I couldn't figure
out how to get around a few issues. Specifically, are you handling nested-tag CSV files? I
could never think of a good way to intelligently split XML files that might have arbitrarily
nested tags, which is something that group really wanted/needed.

An example: 
{code}
<record>
	<name>oneName</name>
	<record>
		<name>twoName</name>
		<record></record>
		<value>twoValue</value>
	</record>
	<value>oneValue</value>
</record> {code}

Were you able to figure out how to handle scenarios such as this?

> Add an Xml File Source
> ----------------------
>
>                 Key: CRUNCH-491
>                 URL: https://issues.apache.org/jira/browse/CRUNCH-491
>             Project: Crunch
>          Issue Type: New Feature
>          Components: Core
>    Affects Versions: 0.11.0
>            Reporter: Christian Tzolov
>            Assignee: Christian Tzolov
>            Priority: Minor
>              Labels: inputformat, source, xml
>         Attachments: CRUNCH-491.patch, CRUNCH-491b.patch
>
>
> Large XML documents that are composed of a repetitive XML elements can be broken into
chunks delimited by the start and end tags of those elements.
> The XmlSource should process XML files and extract out the XML between the pre-configured
start / end tags.



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