Of course, forget it. What parser do you use? Maybe the old parse-html doesn't report it back.You can also try to print every element you loop over and check if it's there or not.
-----Original message----- > From:Amit Sela <[email protected]> > Sent: Wednesday 26th June 2013 16:11 > To: [email protected] > Subject: Re: Fetch iframe from HTML (if exists) > > How will it affect ? I Crawl with no depth (depth 1) so outlinks don't > matter and it seems that the urls fetched don't get parsed, or am I > misunderstanding something ? > > > On Wed, Jun 26, 2013 at 5:06 PM, Markus Jelsma > <[email protected]>wrote: > > > No order does not matter. Try adding iframe to the ignore_tags > > configuration directive in your nutch-site. > > parser.html.outlinks.ignore_tags > > > > > > > > -----Original message----- > > > From:Amit Sela <[email protected]> > > > Sent: Wednesday 26th June 2013 16:03 > > > To: [email protected] > > > Subject: Re: Fetch iframe from HTML (if exists) > > > > > > 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. > > > >>> > > > > >>> > > > >> > > > >> > > > > > > > > > >
