ParticipationVM.java

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/*
 * Turró i Cutiller Foundation. License notice.
 * Copyright (C) 2017 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.activity;
 
import java.util.ArrayList;
import java.util.List;
import org.zkoss.bind.annotation.BindingParam;
import org.zkoss.bind.annotation.Command;
import org.zkoss.bind.annotation.ExecutionArgParam;
import org.zkoss.bind.annotation.Init;
import org.zkoss.bind.annotation.NotifyChange;
import org.zkoss.zk.ui.Executions;
import org.zkoss.zul.GroupsModel;
import org.zkoss.zul.SimpleGroupsModel;
 
public class ParticipationVM {
  
  private String entityPath;
 
  @Init
  public void init(@ExecutionArgParam("entityPath") String entityPath) {
    if(entityPath != null) this.entityPath = entityPath;
    if(this.entityPath == null) {
      this.entityPath = (String) Executions.getCurrent().getAttribute("entityPath");
    }
  }
    
  public Object getEntityPath() {
    return entityPath;
  }
 
  @NotifyChange("model")
  @Command("entityPath")
  public void setEntityPath(@BindingParam("entityPath") String entityPath) {
    this.entityPath = entityPath;
  }
  
  public GroupsModel<IParticipation, Object, Object> getModel() {
    List<List<IParticipation>> data = new ArrayList<>();
    List<String> headers = new ArrayList<>();
    List<IParticipation> loading = null;
 
    String group = null;
    
    for(IParticipation ia : ParticipationCatchers.getParticipations(entityPath)) {
      String current = ia.getCatcher().getDescription();
      if(!(current.equals(group))) {
        group = current;
        headers.add(group);
        loading = new ArrayList<>();
        data.add(loading);
      }
      if(loading != null) {
        loading.add(ia);
      }
    }
    
    return new SimpleGroupsModel<>(data, headers);
  }
 
}