org.wikipedia.nirvana.statistics.StatisticsFabric.java Source code

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Here is the source code for org.wikipedia.nirvana.statistics.StatisticsFabric.java

Source

/**
 *  @(#)StatisticsFabric.java 20/10/2012
 *  Copyright  2012 Dmitry Trofimovich (KIN)
 *    
 *  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/>.
 */

/**
 * WARNING: This file may contain Russian characters.
 * Recommended code page for this file is CP1251 (also called Windows-1251).
 * */
package org.wikipedia.nirvana.statistics;

import java.lang.reflect.Constructor;
import java.util.HashMap;
import java.util.Map;

import org.apache.commons.collections.keyvalue.MultiKey;
import org.apache.commons.collections.map.MultiKeyMap;
import org.wikipedia.nirvana.NirvanaWiki;

/**
 * @author kin
 *
 */
@SuppressWarnings("rawtypes")
public class StatisticsFabric {
    private static Map<String, Class> reporterClass;
    private static Map<String, Statistics> reporters;
    private static MultiKeyMap reportersYear;
    private static org.apache.log4j.Logger log = org.apache.log4j.Logger
            .getLogger(StatisticsFabric.class.getName());

    /**
     * 
     */
    public StatisticsFabric() {

    }

    /*public void register(String type, Class<Statistics> cl) {
           
    }*/

    static {
        reporterClass = new HashMap<String, Class>(5);
        reporterClass.put(" ", StatisticsWeek.class);
        reporterClass.put(" ", StatisticsMonth.class);
        reporterClass.put(" ", StatisticsYear.class);
        reporterClass.put("  ", Rating.class);
        reporterClass.put(" ", RatingTotal.class);
        reporters = new HashMap<String, Statistics>(5);
        reportersYear = new MultiKeyMap();
    }

    @SuppressWarnings("unchecked")
    static Statistics createReporter(NirvanaWiki wiki, String type) {
        Statistics ob = null;
        ob = reporters.get(type);
        if (ob == null) {
            Class cl = reporterClass.get(type);
            if (cl == null)
                return null;
            try {
                Class params[] = new Class[2];
                params[0] = NirvanaWiki.class;
                params[1] = String.class;
                ob = (Statistics) cl.getDeclaredConstructor(params).newInstance(wiki, type);
                reporters.put(type, ob);
            } catch (Exception e) {
                log.error(e);
            }
        }
        // NULL return value will tell about error         
        return ob;
    }

    @SuppressWarnings("unchecked")
    static Statistics createReporter(NirvanaWiki wiki, String type, int year) {
        Statistics ob = null;
        MultiKey multiKey = new MultiKey(type, new Integer(year));
        ob = (Statistics) reportersYear.get(multiKey);
        if (ob == null) {
            Class cl = reporterClass.get(type);
            if (cl == null)
                return null;
            try {
                Class params[] = new Class[] { NirvanaWiki.class, String.class, int.class };
                Constructor c = cl.getDeclaredConstructor(params);
                ob = (Statistics) c.newInstance(wiki, type, year);
                reportersYear.put(multiKey, ob);
            } catch (Exception e) {
                log.error(e.toString());
                e.printStackTrace();
            }
        }
        // NULL return value will tell about error         
        return ob;
    }

    static Statistics getReporter(String type) {
        return reporters.get(type);
    }

    static Statistics getReporter(String type, int year) {
        Statistics ob = null;
        MultiKey multiKey = new MultiKey(type, new Integer(year));
        ob = (Statistics) reportersYear.get(multiKey);
        return ob;
    }

    static Statistics getReporterWithUserData(Statistics caller) {
        Statistics ob = getReporter("  ");
        if (ob == caller)
            ob = null;
        if (ob == null) {
            ob = getReporter(" ");
            if (ob == caller)
                ob = null;
        }
        if (ob == null) {
            ob = getReporter(" ");
            if (ob == caller)
                ob = null;
        }
        return ob;
    }

    static Statistics getReporterWithUserData(Statistics caller, int year) {
        Statistics ob = getReporter("  ", year);
        if (ob == caller)
            ob = null;
        if (ob == null) {
            ob = getReporter(" ", year);
            if (ob == caller)
                ob = null;
        }
        if (ob == null) {
            ob = getReporter(" ", year);
            if (ob == caller)
                ob = null;
        }
        return ob;
    }

    static void purge() {
        reporters.clear();
        reportersYear.clear();
    }

}