UserSummaries.java

Go to the documentation of this file.

/*
 * Turró i Cutiller Foundation. License notice.
 * Copyright (C) 2016 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.action;
 
import java.util.Map;
import java.util.Set;
import java.util.TreeSet;
import org.turro.string.Strings;
import org.turro.annotation.UserSummary;
import org.turro.elephant.context.Application;
import org.turro.elephant.context.IConstructor;
import org.turro.marker.ElephantMarker;
import org.turro.reflection.Instances;
 
public class UserSummaries {
 
  public static void initSummaries(IConstructor constructor) {
    for(IUserSummary iSummary : getSortedSummaries()) {
      iSummary.init(constructor);
    }
  }
  
  public static String parseSummaries(IConstructor constructor) {
    initSummaries(constructor);
    String prevSummary = null, separator = renderSeparator(constructor);
    StringBuilder sb = new StringBuilder();
    for(IUserSummary iSummary : getSortedSummaries()) {
      String summary = iSummary.render(constructor);
      if(!Strings.isBlank(summary)) {
        if(!Strings.isBlank(prevSummary)) {
          sb.append(separator);
        }
        sb.append(summary);
        prevSummary = summary;
      }
    }
    return sb.toString();
  }
  
  /* Attributes */
  
  public static boolean isNotZero(String attribute) {
    Object attr = Application.getApplication().getConstructor().findAttribute("us_" + attribute);
    if(attr instanceof Number) {
      return ((Number) attr).doubleValue() != 0.0;
    }
    return false;
  }
  
  public static boolean isTrue(String attribute) {
    Object attr = Application.getApplication().getConstructor().findAttribute("us_" + attribute);
    if(attr instanceof Boolean) {
      return ((Boolean) attr).booleanValue();
    }
    return false;
  }
  
  public static Object getAttribute(String attribute) {
    return Application.getApplication().getConstructor().findAttribute("us_" + attribute);
  }
  
  public static Object getAttribute(String attribute, Object defaultValue) {
    Object value = Application.getApplication().getConstructor().findAttribute("us_" + attribute);
    return value == null ? defaultValue : value;
  }
  
  public static void setAttribute(String attribute, Object value) {
    Application.getApplication().getConstructor().setSessionAttribute("us_" + attribute, value);
  }
  
  public static Map<String, Object> getAttributes() {
    return Application.getApplication().getConstructor().getSessionAttributeMap("us_");
  }
 
  public static void removeAttributes() {
    for(String key : getAttributes().keySet()) {
      Application.getApplication().getConstructor().removeSessionAttribute("us_" + key);
    }
  }
 
  /* Separator */
  
  private static String renderSeparator(IConstructor constructor) {
    ElephantMarker marker = new ElephantMarker(constructor);
    marker.putAll(UserSummaries.getAttributes());
    return marker.parse("iterator", "separator");
  }
  
  /* User summaries */
  
  private static Set<IUserSummary> getSortedSummaries() {
    return new TreeSet<>(Instances.cached().byAnnotation(UserSummary.class, IUserSummary.class));
  }
  
  private UserSummaries() {
  }
 
}