edu.txstate.dmlab.clusteringwiki.sources.AbsSearchResultCol.java Source code

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Here is the source code for edu.txstate.dmlab.clusteringwiki.sources.AbsSearchResultCol.java

Source

package edu.txstate.dmlab.clusteringwiki.sources;

/**
 *  ClusteringWiki - personalized and collaborative clustering of search results
 *  Copyright (C) 2010  Texas State University-San Marcos
 *  
 *  Contact: http://dmlab.cs.txstate.edu
 * 
 *  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/>.
 */

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import com.thoughtworks.xstream.annotations.XStreamAlias;

/**
 * Collection of search results for an abstract search response set
 * 
 * @author David
 *
 */
@XStreamAlias("search")
public class AbsSearchResultCol extends BaseCWSearchResultCol implements ICWSearchResultCol {

    /**
     * Creates a collection of results from JSON response
     * Note that firstPosition must be set before adding
     * results as result ids depend on that value.
     * @param res
     */
    public AbsSearchResultCol(JSONObject res) {

        if (res == null)
            return;
        JSONObject search = null;

        try {
            search = res.getJSONObject("search");
            JSONArray errors = search.getJSONArray("errors");
            if (errors != null && errors.length() > 0) {
                for (int i = 0; i < errors.length(); i++) {
                    String error = errors.getString(i);
                    addError("AbS API exception: " + error);
                }
                return;
            }
        } catch (JSONException e) {
            addError("AbS API exception: " + e.getMessage());
        }

        try {
            totalResults = search.getInt("totalResults");
            firstPosition = search.getInt("firstPosition");

            JSONArray j = search.getJSONArray("results");
            returnedCount = j.length();

            for (int i = 0; i < j.length(); i++) {
                ICWSearchResult r = new AbsSearchResult(j.getJSONObject(i));
                r.setIndex(i);
                addResult(r);
            }

        } catch (JSONException e) {
            addError("Could not retrieve AbS results: " + e.getMessage());
        }
    }

}