Rankings.java

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/*
 * Turró i Cutiller Foundation. License notice.
 * Copyright (C) 2020 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.ranking;
 
import org.turro.string.Strings;
import org.turro.action.IProcess;
import org.turro.elephant.db.WhereClause;
import org.turro.reflection.Instances;
 
public class Rankings {
 
  public static void process() {
    for(IProcess process : Instances.cached().byAnnotation(ElephantRanking.class, IProcess.class)) {
      process.startProcess();
    }
  }
 
  public static void processFor(Object entity) {
    for(IProcess process : Instances.cached().byAnnotation(ElephantRanking.class, IProcess.class)) {
      if(process.itsMine(entity)) {
        process.startProcessFor(entity);
      }
    }
  }
 
  public static void addJoin(WhereClause wc, String table, String entityRoot, String entityId, String sortOrder) {
    String entityPath = "concat('/" + entityRoot + "/', " + entityRoot + "." + entityId + ")";
    wc.addClause("left outer join " + table + " ranking on ranking.entityPath = " + entityPath + " and ranking.concept = :rankconcept");
    wc.addNamedValue("rankconcept", Strings.isBlank(sortOrder) ? "*" : sortOrder);
  }
 
  public static String getOrdering() {
    return "ranking.ranking desc";
  }
 
  private Rankings() {
  }
 
}