edu.ku.brc.sgr.MatchableRecord.java Source code

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Here is the source code for edu.ku.brc.sgr.MatchableRecord.java

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/* This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
/**
 * 
 */
package edu.ku.brc.sgr;

import java.util.HashMap;
import java.util.Map;

import org.apache.solr.client.solrj.SolrQuery;
import org.apache.solr.client.solrj.SolrServer;
import org.apache.solr.client.solrj.request.MoreLikeThisDocumentRequest;
import org.apache.solr.client.solrj.response.QueryResponse;
import org.apache.solr.common.SolrDocument;
import org.apache.solr.common.SolrDocumentList;
import org.apache.solr.common.params.ModifiableSolrParams;
import org.apache.solr.common.params.MoreLikeThisParams;

import com.google.common.collect.ImmutableList;
import com.google.common.collect.Maps;

/**
 * @author ben
 *
 * @code_status Alpha
 *
 * Created Date: Apr 12, 2011
 *
 */
public class MatchableRecord implements Matchable {
    final public SGRRecord record;

    public MatchableRecord(SGRRecord record) {
        this.record = record;
    }

    /* (non-Javadoc)
     * @see edu.ku.brc.sgr.Matchable#getId()
     */
    @Override
    public String getId() {
        return this.record.id;
    }

    /* (non-Javadoc)
     * @see edu.ku.brc.sgr.Matchable#doMatch(org.apache.solr.client.solrj.SolrServer, org.apache.solr.client.solrj.SolrQuery)
     */
    @Override
    public MatchResults doMatch(SolrServer server, SolrQuery baseQuery) {
        final ModifiableSolrParams query = baseQuery.getCopy().set(MoreLikeThisParams.DOC_SUPPLIED, true);

        final MoreLikeThisDocumentRequest req = new MoreLikeThisDocumentRequest(query)
                .addDocument(record.asSolrDocument());

        final QueryResponse resp;
        try {
            resp = req.process(server);
        } catch (Exception e) {
            // TODO Auto-generated catch block
            throw new RuntimeException(e);
        }

        final SolrDocumentList docs = resp.getResults();
        Map<String, String> explain = resp.getExplainMap();
        if (explain == null)
            explain = Maps.newHashMap();

        final ImmutableList.Builder<Match> msBuilder = ImmutableList.builder();
        final float maxScore = (docs != null) ? docs.getMaxScore() : 0.0f;
        if (docs != null) {
            for (SolrDocument doc : docs) {
                float score = (Float) doc.getFieldValue("score");
                SGRRecord match = SGRRecord.fromSolrDocument(doc);
                String explained = explain.get(match.id);
                msBuilder.add(new Match(match, score, explained));
            }
        }
        return new MatchResults(record.id, resp.getQTime(), maxScore, msBuilder.build());
    }

    public static Matchable from(SGRRecord record) {
        return new MatchableRecord(record);
    }
}