[TIKA-7] Lius Lite remove all lucene dependencies from Lius and use Nutch office parsers

• Type: New Feature
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.1-incubating
• Component/s: general

Environment

Java 1.5

• Assignee: Jukka Zitting
• Reporter: Rida Benjelloun
• Due: 10/Jun/07
• Created: 10/Jun/07 05:23
• Updated: 22/May/09 22:06
• Resolved: 17/Aug/07 19:13

Description

Hi,
This is a work in progress of Lius. The release remove all Lucene dependencies and use Nutch Office parsers because they are based on Apache POI.
Lius Lite offer 4 ways for content extraction :

• Document fulltext extraction
• XPath extraction
• Regex extraction
• Document metadata extraction (not implemented for all parsers)

Lius Lite use an XML config file to configure the parsers and the information to extract. Please see config.xml in the config folder
See also Junit tests.
Here is an example of XML parsing :
1- XML Config
<parser name="text-xml" class="liuslite.parser.xml.XMLParser">
<namespace>http://purl.org/dc/elements/1.1/</namespace>
<mime>application/xml</mime>
<extract>
<content name="title" xpathSelect="//dc:title"/>
<content name="subject" xpathSelect="//dc:subject"/>
<content name="creator" xpathSelect="//dc:creator"/>
<content name="description" xpathSelect="//dc:description"/>
<content name="publisher" xpathSelect="//dc:publisher"/>
<content name="contributor" xpathSelect="//dc:contributor"/>
<content name="type" xpathSelect="//dc:type"/>
<content name="format" xpathSelect="//dc:format"/>
<content name="identifier" xpathSelect="//dc:identifier"/>
<content name="language" xpathSelect="//dc:language"/>
<content name="rights" xpathSelect="//dc:rights"/>
<content name="outLinks">
<regexSelect>
<![CDATA[
([A-Za-z][A-Za-z0-9+.-]

{1,120}

:[A-Za-z0-9/](([A-Za-z0-9$_.+!*,;/?:@&~=-])|%[A-Fa-f0-9]

{2}

)

{1,333}

(#([a-zA-Z0-9][a-zA-Z0-9$_.+!*,;/?:@&~=%-]

{0,1000}

))?)
]]>
</regexSelect>
</content>
</extract>
</parser>

2- XML Document
<oaidc:dc xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oaidc="http://www.openarchives.org/OAI/2.0/oai_dc/">
<dc:title>Archimède et Lius</dc:title>
<dc:creator>Rida Benjelloun</dc:creator>
<dc:subject>Java</dc:subject>
<dc:subject>XML</dc:subject>
<dc:subject>XSLT</dc:subject>
<dc:subject>JDOM</dc:subject>
<dc:subject>Indexation</dc:subject>
<dc:description>Framework d'indexation des documents XML, HTML, PDF etc.. </dc:description>
<dc:publisher>Doculibre</dc:publisher>
<dc:identifier>http://www.apache.org</dc:identifier>
<dc:date>2000-12</dc:date>
<dc:type>test</dc:type>
<dc:format>application/msword</dc:format>
<dc:language>Fr</dc:language>
<dc:rights>Non restreint</dc:rights>
</oaidc:dc>

3- Java Code

LiusConfig lc = LiusConfig.getInstance(configPathString);
LiusLogger.setLoggerConfigFile(log4jPathString);

File testFile = new File("test.xml");
try

{ Parser parser = ParserFactory.getParser(testFile, lc); String fullText = parser.getContentStr(); Content title = parser.getContent("title"); String titleStr = title.getValue(); Content subject = parser.getContent("subject"); String[] subjects = subject.getValues(); etc ... Or : List<Content> contents = parser.getContents(); }

catch (MimeInfoException e)

{ e.printStackTrace(); }

catch (IOException e)

{ e.printStackTrace(); }

catch (LiusException e)

{ e.printStackTrace(); }

best regards
Rida Benjelloun