Package org.exoplatform.gadget.webui.component

Source Code of org.exoplatform.gadget.webui.component.UIGadgetPortlet

/**
* Copyright (C) 2009 eXo Platform SAS.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/

package org.exoplatform.gadget.webui.component;

import org.exoplatform.application.gadget.Gadget;
import org.exoplatform.application.gadget.GadgetRegistryService;
import org.exoplatform.application.gadget.LocalImporter;
import org.exoplatform.container.ExoContainer;
import org.exoplatform.container.ExoContainerContext;
import org.exoplatform.portal.webui.application.GadgetUtil;
import org.exoplatform.web.application.ApplicationMessage;
import org.exoplatform.webui.application.WebuiRequestContext;
import org.exoplatform.webui.application.portlet.PortletRequestContext;
import org.exoplatform.webui.config.annotation.ComponentConfig;
import org.exoplatform.webui.core.UIApplication;
import org.exoplatform.webui.core.UIPortletApplication;
import org.exoplatform.webui.core.lifecycle.UIApplicationLifecycle;
import org.gatein.common.logging.Logger;
import org.gatein.common.logging.LoggerFactory;
import org.json.JSONException;
import org.json.JSONObject;

import javax.portlet.PortletPreferences;

/**
* Created by The eXo Platform SARL
* Author : dang.tung
*          tungcnw@gmail.com
* June 27, 2008
*/
@ComponentConfig(lifecycle = UIApplicationLifecycle.class, template = "app:/groovy/gadget/webui/component/UIGadgetPortlet.gtmpl")
public class UIGadgetPortlet extends UIPortletApplication
{
   final static public String LOCAL_STRING = "local://";

   private static final Logger log = LoggerFactory.getLogger(LocalImporter.class);

   public UIGadgetPortlet() throws Exception
   {
      addChild(UIGadgetViewMode.class, null, null);
   }

   public String getUrl()
   {
      PortletRequestContext pcontext = (PortletRequestContext)WebuiRequestContext.getCurrentInstance();
      PortletPreferences pref = pcontext.getRequest().getPreferences();
      String urlPref = pref.getValue("url", "http://www.google.com/ig/modules/horoscope.xml");
      if (urlPref.startsWith(LOCAL_STRING))
      {
         try
         {
            String gadgetName = urlPref.replaceFirst(LOCAL_STRING, "");
            ExoContainer container = ExoContainerContext.getCurrentContainer();
            GadgetRegistryService gadgetService =
               (GadgetRegistryService)container.getComponentInstanceOfType(GadgetRegistryService.class);
            Gadget gadget = gadgetService.getGadget(gadgetName);
            if (gadget != null)
            {
               return GadgetUtil.reproduceUrl(gadget.getUrl(), gadget.isLocal());
            }
         }
         catch (Exception e)
         {
            log.warn("Failure retrieving gadget from url!");
         }
      }
      return urlPref;
   }

   public String getMetadata()
   {
      String url = getUrl();
      if (url == null)
      {
         WebuiRequestContext context = WebuiRequestContext.getCurrentInstance();
         UIApplication uiApplication = context.getUIApplication();
         uiApplication.addMessage(new ApplicationMessage("UIGadgetPortlet.msg.url-invalid", null));
      }

      String metadata_ = GadgetUtil.fetchGagdetMetadata(url);
      try
      {
         JSONObject jsonObj = new JSONObject(metadata_);
         JSONObject obj = jsonObj.getJSONArray("gadgets").getJSONObject(0);
         String token = GadgetUtil.createToken(url, new Long(hashCode()));
         obj.put("secureToken", token);
         metadata_ = jsonObj.toString();
      }
      catch (JSONException e)
      {
         e.printStackTrace(); //To change body of catch statement use File | Settings | File Templates.
      }
      return metadata_;
   }
}
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