PortalContainer.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.zul.portal;
 
import java.io.File;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.jdom.Document;
import org.jdom.Element;
import org.jdom.JDOMException;
import org.jdom.input.SAXBuilder;
import org.jdom.output.Format;
import org.jdom.output.XMLOutputter;
import org.turro.elephant.context.Application;
import org.turro.elephant.context.ElephantContext;
import org.turro.elephant.context.IConstructor;
import org.turro.elephant.impl.util.FileUtil;
import org.zkoss.zk.ui.event.Event;
import org.zkoss.zk.ui.event.EventListener;
import org.zkoss.zk.ui.ext.AfterCompose;
import org.zkoss.zkmax.ui.event.Events;
import org.zkoss.zkmax.zul.Portallayout;
 
public class PortalContainer extends Portallayout implements AfterCompose {
 
  private String label;
  private File userFile, confFile;
  private PortalColumnSet columns = new PortalColumnSet();
 
  public PortalContainer() {
    setSclass("portalContainer");
    setVflex("true");
    addEventListener(Events.ON_PORTAL_MOVE, new EventListener() {
      @Override
      public void onEvent(Event event) throws Exception {
        applyChanges();
      }
    });
  }
 
  public void setFiles(File userFile, File confFile) {
    this.userFile = userFile;
    this.confFile = confFile;
    if(userFile.exists()) {
      this.confFile = userFile;
    }
    readConfiguration();
  }
 
  public String getLabel() {
    return label;
  }
 
  public void applyChanges() {
    writeConfiguration(Application.getApplication().getConstructor());
  }
 
  private void load(Element root) {
    label = root.getAttributeValue("label");
    columns.load(root);
    for(PortalColumn pc : columns) {
      appendChild(pc);
    }
  }
 
  private void readConfiguration() {
    SAXBuilder builder = new SAXBuilder();
    try {
      if(confFile.exists()) {
        Document doc = builder.build(confFile);
        load(doc.getRootElement());
      }
    } catch (IOException ex) {
      Logger.getLogger(PortalContainer.class.getName()).log(Level.SEVERE, ElephantContext.logMsg(null), ex);
    } catch (JDOMException ex) {
      Logger.getLogger(PortalContainer.class.getName()).log(Level.SEVERE, ElephantContext.logMsg(null), ex);
    }
  }
 
  private void save(Element root) {
    root.setAttribute("label", label);
    columns.save(root, this);
  }
 
  private void writeConfiguration(IConstructor constructor) {
    Document doc = new Document(new Element("elephant-portal"));
    save(doc.getRootElement());
    if(!userFile.exists()) new File(org.amic.util.file.FileUtil.getParentPath(userFile.getAbsolutePath())).mkdirs();
    try {
      OutputStreamWriter fw = FileUtil.getFileWriter(userFile);
      Format fm = Format.getPrettyFormat();
      fm.setEncoding(ElephantContext.getEncoding());
      XMLOutputter xo = new XMLOutputter(fm);
      xo.output(doc, fw);
      fw.close();
    } catch (IOException ex) {
      Logger.getLogger(PortalContainer.class.getName()).log(Level.SEVERE, ElephantContext.logMsg(null), ex);
    }
  }
 
  @Override
  public void afterCompose() {
    for(PortalColumn column : columns) {
      column.afterCompose();
    }
  }
 
}