com.ikon.servlet.frontend.ThesaurusServlet.java Source code

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Here is the source code for com.ikon.servlet.frontend.ThesaurusServlet.java

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/**
 *  openkm, Open Document Management System (http://www.openkm.com)
 *  Copyright (c) 2006-2013  Paco Avila & Josep Llort
 *
 *  No bytes were intentionally harmed during the development of this application.
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *  
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License along
 *  with this program; if not, write to the Free Software Foundation, Inc.,
 *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

package com.ikon.servlet.frontend;

import java.util.ArrayList;
import java.util.List;

import org.apache.commons.collections.CollectionUtils;
import org.apache.commons.collections.Predicate;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.ikon.frontend.client.OKMException;
import com.ikon.frontend.client.service.OKMThesaurusService;
import com.ikon.kea.RDFREpository;

/**
 * Servlet Class
 */
public class ThesaurusServlet extends OKMRemoteServiceServlet implements OKMThesaurusService {
    private static Logger log = LoggerFactory.getLogger(ThesaurusServlet.class);
    private static final long serialVersionUID = -4436438730167948558L;

    @Override
    public List<String> getKeywords(final String filter) throws OKMException {
        log.debug("getKeywords({})", filter);
        List<String> keywordList = new ArrayList<String>();
        List<String> keywords = RDFREpository.getInstance().getKeywords();
        int index = -1;
        int size = keywords.size();
        updateSessionManager();

        // Keywords list is an ordered list
        String value = (String) CollectionUtils.find(keywords, new Predicate() {
            @Override
            public boolean evaluate(Object arg0) {
                String key = (String) arg0;
                if (key.toLowerCase().startsWith(filter)) {
                    return true;
                } else {
                    return false;
                }
            }
        });

        if (value != null) {
            index = keywords.indexOf(value);
        }

        if (index >= 0) {
            while (size > index && keywords.get(index).toLowerCase().startsWith(filter)) {
                keywordList.add(keywords.get(index));
                index++;
            }
        }

        log.debug("getKeywords: {}", keywordList);
        return keywordList;
    }
}