Costumized Lucene Search Page

19 Apr 2007

      With RC1 lucene seems to work again, so i have costumized the existing search
form from jkraemer
(http://www.jkraemer.net/static/maven/xwiki/plugins/lucene-plugin/install.htm...)

But keep attention: it's just a quick&dirty example to display the results
in a table ;-)
As im not very familiar with velocity, the code is quite ugly! (for example
i didn't find a while loop to output the number of stars for score-quality,
so i did it with if, if, if..)

it still has some bugs:
* if you search for a regular expression (e.g. win*), then the query for the
next page will be win</strong>
* non wiki-documents and non-attachments will be hidden from the results, so
it could happen that you see an empty page with a link to the next results
(that's because searchresults.hitcount returns all results, also the hidden
ones..)
* many more..
* icons are hard-coded.. (/skins/lgs/*.png)

You can get the icons for free from famfamfam:
http://www.famfamfam.com/lab/icons/silk/

---------------------------
Searchform.vm:
1 Search
#set($query = $request.getParameter("text"))
#if(!$query)
	#set($query = "")
#end
#warning("This is the new lucene search engine.\\
If you experience any problems, try to use the default xwiki
[Search>WebSearch?text=$query]..")
#set($itemsPerPage = "30")
#set($doRebuild = $request.getParameter("rebuild"))
#if($doRebuild=="yes")
	#set($lucene = $xwiki.getPlugin("lucene"))
	#if($lucene)
		#set($documentCount = $lucene.rebuildIndex($xwiki,$context))
		#if(${documentCount}>=0)
			Started index rebuild with $documentCount documents. Will take some time
depending on the number of pages/attachments.
		#else
			Index rebuild failed.
		#end
	#end
#else
	#if($xwiki.hasAdminRights())
		[rebuild Index>${doc.web}.${doc.name}?rebuild=yes]
	#end
#end

{pre}
<form action="$doc.name" method="post">
<input type="text" name="text" value="$query" />
<input type="submit" value="Search"/>
</form>
{/pre}

#if($query != "")
	#set($lucene = $xwiki.getPlugin("lucene"))
	#if($lucene)
		#set($wikinames = "xwiki")
		#set($languages = "default,en,de")
		#set($firstIndex = $request.getParameter("firstIndex"))
		#if(!$firstIndex)
			#set($firstIndex = "1")
		#end
		#set($searchresults = $lucene.getSearchResults($query, $wikinames,
$languages, $xwiki))
		#set($results = $searchresults.getResults($firstIndex,$itemsPerPage))
		#if($results.size()>0)
			#set($lastIndex=$searchresults.getEndIndex($firstIndex, $itemsPerPage))
			#if($searchresults.hitcount==1)
				##{pre} $msg.get("oneresult"):{/pre}
			#else
				##{pre}$msg.get("results") $firstIndex - $lastIndex $msg.get("of")
${searchresults.hitcount}:{/pre}

			#if($searchresults.hasPrevious($firstIndex))
				[previous
page>${doc.web}.${doc.name}?text=$query&firstIndex=$searchresults.getPreviousIndex($firstIndex,$itemsPerPage)]
			#end
			#if($searchresults.hasNext($firstIndex,$itemsPerPage))
				[next
page>${doc.web}.${doc.name}?text=$query&firstIndex=$searchresults.getNextIndex($firstIndex,$itemsPerPage)]
			#end
		#end

		<table width="100%" class="grid" cellSpacing=0 cellpadding="5" border="1">
		<tr>
		<th>Result</th>
		<th width="100">Date</th>
		<th width="150">Last Author</th>
		<th width="100">Score</th>
		</tr>
		#foreach($result in $results)
			#if($result.type=='wikipage')
				<tr>
				#if($xwiki.isVirtual())
					<td align=left>[${result.wiki}:${result.web}.${result.name}]</td>
				#else
					<td align=left>[${result.web}.${result.name}]</td>
				#end
				<td>$xwiki.formatDate($result.date, "d. MMM yyyy")</td>
				<td>$xwiki.getUserName($result.author)</td>
				<td>
				#set($resval=$result.score*100)
				#if($resval>10)
					 /xwiki/skins/lgs/16-star-hot.png 
				#end
				#if($resval>25)
					 /xwiki/skins/lgs/16-star-hot.png 
				#end
				#if($resval>50)
					 /xwiki/skins/lgs/16-star-hot.png 
				#end
				#if($resval>70)
					 /xwiki/skins/lgs/16-star-hot.png 
				#end
				#if($resval>90)
					 /xwiki/skins/lgs/16-star-hot.png 
				#end
				${resval}%
				</td>
				</tr>
			#elseif($result.type=='attachment')
				<tr>
				<td align=left> ${result.url}  /xwiki/skins/lgs/disk.png 
${result.filename} \\
				Attachment of [${result.web}.${result.name}]</td>
				<td>$xwiki.formatDate($result.date, "d. MMM yyyy")</td>
				<td>$xwiki.getUserName($result.author)</td>
				<td>
				#set($resval=$result.score*100)
				#if($resval>10)
					 /xwiki/skins/lgs/16-star-hot.png 
				#end
				#if($resval>25)
					 /xwiki/skins/lgs/16-star-hot.png 
				#end
				#if($resval>50)
					 /xwiki/skins/lgs/16-star-hot.png 
				#end
				#if($resval>70)
					 /xwiki/skins/lgs/16-star-hot.png 
				#end
				#if($resval>90)
					 /xwiki/skins/lgs/16-star-hot.png 
				#end
				${resval}%
				</td>
				</tr>
			#end
			</tr>
		#end
		#else
			$msg.get("noresults")
		#end
		</table>
		\\
	#else
		lucene plugin not found
	#end
#end
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Costumized Lucene Search Page

Michael Guntli