/*
 * Licensed Materials - Property of Rogue Wave Software, Inc. 
 * © Copyright Rogue Wave Software, Inc. 2014, 2017 
 * © Copyright IBM Corp. 2009, 2014
 * © Copyright ILOG 1996, 2009
 * All Rights Reserved.
 *
 * Note to U.S. Government Users Restricted Rights:
 * The Software and Documentation were developed at private expense and
 * are "Commercial Items" as that term is defined at 48 CFR 2.101,
 * consisting of "Commercial Computer Software" and
 * "Commercial Computer Software Documentation", as such terms are
 * used in 48 CFR 12.212 or 48 CFR 227.7202-1 through 227.7202-4,
 * as applicable.
 */
package demo.select;

import javax.servlet.ServletException;

import ilog.views.diagrammer.IlvDiagrammer;
import ilog.views.diagrammer.servlet.IlvDiagrammerServletSupport;
import ilog.views.sdm.IlvSDMEngine;
import ilog.views.sdm.IlvSDMView;
import ilog.views.servlet.ServerActionEvent;
import ilog.views.servlet.ServerActionListener;

/**
 * Implements a server side action listener to perform the selection of a given
 * object identifier, if any.
 */
public class SelectObjectAction implements ServerActionListener {

  private static String ACTION_NAME = "doSelectObject";

  /**
   * This callback method will react to the <code>doSelectObject</code> action
   * name submitted by the client side (<code>IlvView.performAction()</code>
   * JavaScript function).
   * 
   * @param event
   *          The server action event carrying the action payload
   */
  Override
  public void actionPerformed(ServerActionEvent event) throws ServletException {
    if (ACTION_NAME.equals(event.getActionName())) {
      IlvSDMView view = (IlvSDMView) event.getManagerView();
      IlvDiagrammer diagrammer = ((IlvDiagrammerServletSupport) event.getServletSupport()).getDiagrammer(view);
      String objId = event.getStringParameter(0);
      diagrammer.deselectAll();
      IlvSDMEngine engine = diagrammer.getEngine();
      Object obj = engine.getObject(objId);
      if (null != obj) {
        diagrammer.setSelected(obj, true);
      }
    }
  }
}