mirror of
https://github.com/Alfresco/alfresco-community-repo.git
synced 2025-06-30 18:15:39 +00:00
1481a5481e
84758: Merged PLATFORM1 (5.0/Cloud) to HEAD-BUG-FIX (5.0/Cloud)
80284: ACE-2213
git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@85123 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
120 lines
4.0 KiB
Java
120 lines
4.0 KiB
Java
/*
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* Copyright (C) 2005-2010 Alfresco Software Limited.
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*
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* This file is part of Alfresco
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*
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* Alfresco is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Alfresco is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with Alfresco. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.alfresco.repo.content.metadata;
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import java.util.ArrayList;
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import java.util.HashSet;
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import org.alfresco.api.AlfrescoPublicApi;
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import org.alfresco.error.AlfrescoRuntimeException;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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import org.apache.tika.mime.MediaType;
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import org.apache.tika.parser.ParseContext;
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import org.apache.tika.parser.Parser;
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/**
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* A Metadata Extractor which makes use of Apache Tika,
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* and allows the selection of the Tika parser to be
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* sprung-in to extract the metadata from your document.
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* This is typically used with custom Tika Parsers.
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* <pre>
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* <b>author:</b> -- cm:author
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* <b>title:</b> -- cm:title
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* <b>subject:</b> -- cm:description
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* <b>created:</b> -- cm:created
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* <b>comments:</b>
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* <p>geo:lat:</b> -- cm:latitude
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* <p>geo:long:</b> -- cm:longitude
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* </pre>
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*
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* @since 3.4
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* @author Nick Burch
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*/
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@AlfrescoPublicApi
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public class TikaSpringConfiguredMetadataExtracter extends TikaPoweredMetadataExtracter
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{
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protected static Log logger = LogFactory.getLog(TikaSpringConfiguredMetadataExtracter.class);
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private Parser tikaParser;
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private String tikaParserClassName;
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private Class<? extends Parser> tikaParserClass;
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/**
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* Injects the name of the Tika parser to use
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* @param className
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*/
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@SuppressWarnings("unchecked")
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public void setTikaParserName(String className)
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{
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tikaParserClassName = className;
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// Load the class
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try {
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tikaParserClass = (Class<? extends Parser>)Class.forName(tikaParserClassName);
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setTikaParser(getParser());
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} catch(ClassNotFoundException e) {
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throw new AlfrescoRuntimeException("Specified Tika Parser '" + tikaParserClassName + "' not found");
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}
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}
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/**
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* Injects the Tika parser to use
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* @param parser
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*/
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public void setTikaParser(Parser tikaParser)
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{
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this.tikaParser = tikaParser;
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// Build the mime types, updating the copy our parent
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// holds for us as we go along
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ArrayList<String> mimetypes = new ArrayList<String>();
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for(MediaType mt : tikaParser.getSupportedTypes(new ParseContext()))
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{
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mimetypes.add( mt.toString() );
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}
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super.setSupportedMimetypes(mimetypes);
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}
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public TikaSpringConfiguredMetadataExtracter()
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{
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super(new HashSet<String>());
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}
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/**
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* Returns the Tika parser
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*/
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protected Parser getParser()
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{
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// If we were given a whole parser, return it
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if(tikaParser != null)
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return tikaParser;
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// Otherwise create a new one
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try {
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return tikaParserClass.newInstance();
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} catch (InstantiationException e) {
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throw new AlfrescoRuntimeException("Unable to create specified Parser", e);
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} catch (IllegalAccessException e) {
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throw new AlfrescoRuntimeException("Unable to create specified Parser", e);
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}
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}
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}
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