elaborate.editor.solr.SolrServerFactory.java Source code

Introduction

Here is the source code for elaborate.editor.solr.SolrServerFactory.java

Source

package elaborate.editor.solr;

import org.apache.commons.lang.StringUtils;

import elaborate.editor.config.Configuration;

/*
 * #%L
 * elab4-backend
 * =======
 * Copyright (C) 2011 - 2016 Huygens ING
 * =======
 * 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 3 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, see
 * <http://www.gnu.org/licenses/gpl-3.0.html>.
 * #L%
 */

import nl.knaw.huygens.facetedsearch.LocalSolrServer;
import nl.knaw.huygens.facetedsearch.QueryComposer;
import nl.knaw.huygens.facetedsearch.RemoteSolrServer;
import nl.knaw.huygens.facetedsearch.SolrServerWrapper;

public class SolrServerFactory {
    private static SolrServerWrapper instance;

    public static synchronized SolrServerWrapper getInstance() {
        if (instance == null) {
            QueryComposer queryComposer = new ElaborateEditorQueryComposer();
            String url = Configuration.instance().getSetting(Configuration.SOLR_URL_KEY);
            if (StringUtils.isNotEmpty(url)) {
                instance = new RemoteSolrServer(url, queryComposer);
            } else {
                instance = new LocalSolrServer(null, "entries", queryComposer);
            }
        }
        return instance;
    }

}