MostUsed.java

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/*
 * Turró i Cutiller Foundation. License notice.
 * Copyright (C) 2011 Lluis Turró Cutiller <http://www.turro.org/>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package  org.turro.contacts.util;
 
import org.turro.contacts.db.ContactsPU;
import org.turro.elephant.db.SQLHelper;
import org.turro.elephant.db.WhereClause;
import org.turro.jpa.Dao;
 
public class MostUsed {
 
  public static String getConnector(String choices, String defaultChoice) {
    Dao dao = new ContactsPU();
    WhereClause wc = new WhereClause();
    wc.addClause("select connector.description, count(connector.description)");
    wc.addClause("from Connector connector");
    wc.addClause("where connector.description in (" + SQLHelper.quoteTokensForIn(choices) + ")");
    wc.addClause("group by connector.description");
    wc.addClause("order by count(connector.description) DESC");
    Object o[] = (Object[]) dao.getSingleResult(wc);
    return (String) ((o == null || o.length == 0 || o[0] == null) ? defaultChoice : o[0]);
  }
 
  public static String getAddress(String choices, String defaultChoice) {
    Dao dao = new ContactsPU();
    WhereClause wc = new WhereClause();
    wc.addClause("select address.description, count(address.description)");
    wc.addClause("from Address address");
    wc.addClause("where address.description in (" + SQLHelper.quoteTokensForIn(choices) + ")");
    wc.addClause("group by address.description");
    wc.addClause("order by count(address.description) DESC");
    Object o[] = (Object[]) dao.getSingleResult(wc);
    return (String) ((o == null || o.length == 0 || o[0] == null) ? defaultChoice : o[0]);
  }
 
  private MostUsed() {
  }
 
}