In nutch-site.xml plugin.includes my custom filter is last and I have
no htmlparsefilter.order  so my filter should be applied last, right ?



On Wed, Jun 26, 2013 at 5:00 PM, Amit Sela <[email protected]> wrote:

> So I managed to create and deploy my plugin, which initially used
> content.getContent() and it worked.
> Then, I wanted to parse the fetched content as DocumentFragment (by
> iterating over the child nodes).
> This doesn't work. I logged DocumentFragment.toString() in my
> MyCustomHtmlParseFilter in filter method, and in the Parse MapReduce logs I
> see: [#document-fragment: null] for all URLS.
>
> How do I get nutch to pass the parsed html as DocumentFragment ? Should I
> state htmlparsefilter.order in nutch-site.xml ? if so, in what order ?
>
> Thanks.
>
>
>
>
> On Tue, Jun 25, 2013 at 5:38 PM, Amit Sela <[email protected]> wrote:
>
>> Thanks for the prompt answer!
>>
>>
>> On Tue, Jun 25, 2013 at 5:35 PM, Markus Jelsma <
>> [email protected]> wrote:
>>
>>> Hi,
>>>
>>> Do i understand you correctly if you want all iframe src attributes on a
>>> given page stored in the iframe field?
>>>
>>> The src attributes are not extracted and there is no facility to do so
>>> right now. You should create your own HTMLParseFilter, loop through the
>>> document looking for iframe tags and collect the src attribute. Then add
>>> those as parse metadata. You can then index them with the index-metadata
>>> plugin. I'm not sure it supports multi valued metafields in Nutch 1.6, it
>>> sure will in 1.7.
>>>
>>> Use the bin/nutch parsechecker and indexchecker tools to check if your
>>> plugin works.
>>>
>>> Cheers
>>>
>>>
>>>
>>> -----Original message-----
>>> > From:Amit Sela <[email protected]>
>>> > Sent: Tuesday 25th June 2013 16:26
>>> > To: [email protected]
>>> > Subject: Fetch iframe from HTML (if exists)
>>> >
>>> > Hi all,
>>> >
>>> > I'm using nutch 1.6 with Solr 3.6.2 and I would like to index the
>>> iframe
>>> > src field into Solr.
>>> > i.e.,
>>> > <iframe src="something" scrolling="" frameborder="".......>
>>> > So i want to fetch the iframe and index it as iframe so that I could
>>> find
>>> > URLS by iframe src.
>>> >
>>> > I'm crawling with no depth over a seed list, and I don't want to crawl
>>> to
>>> > the iframe src, just to index and store it.
>>> >
>>> > I tried adding
>>> > <name>urlmeta.tags</name> <value>iframe</value> to nutch-site.xml
>>> >
>>> > and
>>> > <field name="iframe" type="text_general" stored="true" indexed="true"
>>> > multiValued="true"/> to schema.xml
>>> >
>>> > and
>>> > <field dest="iframe" source="iframe"/> to solrindex-mapping.xml.
>>> >
>>> > What am I missing ?
>>> >
>>> > Thanks,
>>> >
>>> > Amit.
>>> >
>>>
>>
>>
>

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