de.upb.wdqa.wdvd.features.sentence.CommentSitelinkSimilarity.java Source code

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Here is the source code for de.upb.wdqa.wdvd.features.sentence.CommentSitelinkSimilarity.java

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/*
 * Wikidata Vandalism Detector 2016 (WDVD-2016)
 * 
 * Copyright (c) 2016 Stefan Heindorf, Martin Potthast, Benno Stein, Gregor Engels
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

package de.upb.wdqa.wdvd.features.sentence;

import java.util.Map;

import org.apache.commons.lang3.StringUtils;
import org.wikidata.wdtk.datamodel.interfaces.ItemDocument;
import org.wikidata.wdtk.datamodel.interfaces.SiteLink;

import de.upb.wdqa.wdvd.Revision;
import de.upb.wdqa.wdvd.features.FeatureFloatValue;
import de.upb.wdqa.wdvd.features.FeatureImpl;

public class CommentSitelinkSimilarity extends FeatureImpl {

    private static String getEnglishSitelink(ItemDocument itemDocument) {
        String result = null;

        if (itemDocument != null) {
            Map<String, SiteLink> map = itemDocument.getSiteLinks();

            SiteLink sitelink = map.get("enwiki");

            if (sitelink != null) {
                result = sitelink.getPageTitle();
            }
        }

        return result;
    }

    @Override
    public FeatureFloatValue calculate(Revision revision) {
        Float result = null;

        String suffixComment = revision.getParsedComment().getSuffixComment();

        if (suffixComment != null) {

            ItemDocument itemDocument = revision.getItemDocument();

            String englishSitelink = getEnglishSitelink(itemDocument);

            if (englishSitelink != null) {
                englishSitelink = englishSitelink.trim();
                suffixComment = suffixComment.trim();

                result = (float) StringUtils.getJaroWinklerDistance(englishSitelink, suffixComment);
            }
        }

        return new FeatureFloatValue(result);
    }

}