/*
    * Copyright 2000-2001,2004 The Apache Software Foundation.
    * 
    * Licensed under the Apache License, Version 2.0 (the "License");
    * you may not use this file except in compliance with the License.
    * You may obtain a copy of the License at
    * 
    *      http://www.apache.org/licenses/LICENSE-2.0
    * 
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package org.apache.jetspeed.modules.actions.portlets;
  
  // Turbine stuff
  import org.apache.turbine.util.RunData;
  import org.apache.turbine.services.TurbineServices;
  import org.apache.turbine.util.Comparable;
  import org.apache.turbine.util.QuickSort;
  
  // Jetspeed stuff
  import org.apache.jetspeed.portal.Portlet;
  import org.apache.jetspeed.modules.actions.portlets.JspPortletAction;
  import org.apache.jetspeed.services.logging.JetspeedLogFactoryService;
  import org.apache.jetspeed.services.logging.JetspeedLogger;
  import org.apache.jetspeed.webservices.finance.stockmarket.StockQuoteService;
  import org.apache.jetspeed.webservices.finance.stockmarket.StockQuote;
  import org.apache.jetspeed.util.PortletConfigState;
  import org.apache.jetspeed.util.PortletSessionState;
  import org.apache.jetspeed.util.StringUtils;
  
  /***
   * This action sets up the template context for retrieving stock quotes.
   *
   * @author <a href="mailto:morciuch@apache.org">Mark Orciuch</a>
   * @version $Id: JspStockQuoteAction.java,v 1.3 2004/02/23 02:56:58 jford Exp $ 
   */
  
  public class JspStockQuoteAction extends JspPortletAction implements Comparable
  {
      private static final String SYMBOLS = "symbols";
      private static final String COLUMNS = "columns";
      private static final String QUOTES = "quotes";
      private static final String SORT = "sort";
      private static final String SELECTED_COLUMNS = "selected-columns";
      private static final String[] ALL_COLUMNS = {"Symbol","Price","Change","Volume"};
      private String sort = null;
  
      /***
       * Static initialization of the logger for this class
       */    
      private static final JetspeedLogger logger = JetspeedLogFactoryService.getLogger(JspStockQuoteAction.class.getName());     
      
      /***
       * Build the normal state content for this portlet.
       *
       * @param portlet The jsp-based portlet that is being built.
       * @param rundata The turbine rundata context for this request.
       */
      protected void buildNormalContext(Portlet portlet, RunData rundata)
      {
  
          // We always fetch the most current quotes so might as well call refresh from here
          this.doRefresh(rundata, portlet);
      }
  
      /***
       * Sort the quotes.
       *
       * @param portlet The jsp-based portlet that is being built.
       * @param rundata The turbine rundata context for this request.
       */
      public void doSort(RunData rundata, Portlet portlet)
      {
          // We always fetch the most current quotes so might as well call refresh from here
          this.doRefresh(rundata, portlet);
          logger.info("JspStockQuoteAction: sorting...");
      }
  
      /***
       * Refresh the portlet content.
       *
       * @param portlet The jsp-based portlet that is being built.
       * @param rundata The turbine rundata context for this request.
       */
      public void doRefresh(RunData rundata, Portlet portlet)
      {
          try
          {
              // Get reference to stock quote web service
              StockQuoteService service = (StockQuoteService) TurbineServices.getInstance().
                  getService(StockQuoteService.SERVICE_NAME);
  
              // Retrieve portlet parameters
              String symbols = (String) PortletSessionState.getAttributeWithFallback(portlet, rundata, SYMBOLS);
 
             this.sort = (String) PortletSessionState.getAttributeWithFallback(portlet, rundata, SORT);
             if (this.sort != null)
             {
                 PortletSessionState.setAttribute(portlet, rundata, SORT, sort);
                 rundata.getRequest().setAttribute(SORT, sort);
             }
 
             String columns = PortletConfigState.getParameter(portlet, rundata, COLUMNS, 
                                                              StringUtils.arrayToString(ALL_COLUMNS, ","));
             String[] selectedColumnsArray = StringUtils.stringToArray(columns, ",");
 
 
             // Request stock quote(s) from the stock quote web service
             String[] symbolArray = StringUtils.stringToArray(symbols, ",");
             StockQuote[] quotes = service.fullQuotes(symbolArray);
 
             // Sort the entries
             if (this.sort != null)
             {
                 QuickSort.quickSort(quotes, 0, quotes.length - 1, this);
                 rundata.getRequest().setAttribute(SORT, this.sort);
             }
 
             // Place appropriate objects in jsp context
             rundata.getRequest().setAttribute(QUOTES, quotes);
             rundata.getRequest().setAttribute(COLUMNS, selectedColumnsArray);
             rundata.getRequest().setAttribute(SELECTED_COLUMNS, columns);
 
             logger.info("JspStockQuoteAction: refreshing...");
         }
         catch (Exception e)
         {
             logger.error("Exception", e);
         }
     }
 
     /***
      * Compare to another <code>StockQuote</code>.  Used by the
      * <code>QuickSort</code> class to determine sort order.
      * 
      * @param entry1 The first <code>StockQuoteEntry</code> object.
      * @param entry2 The second <code>StockQuoteEntry</code> object.
      * @return An <code>int</code> indicating the result of the comparison.
      */
     public int compare(Object entry1, Object entry2)
     {
         if (this.sort.equalsIgnoreCase("price"))
         {
             Float entrycol1 = new Float(((StockQuote) entry1).getPrice());
             Float entrycol2 = new Float(((StockQuote) entry2).getPrice());
             return entrycol1.compareTo(entrycol2);
         }
         else if (this.sort.equalsIgnoreCase("symbol"))
         {
             String entrycol1 = ((StockQuote) entry1).getSymbol();
             String entrycol2 = ((StockQuote) entry2).getSymbol();
             return entrycol1.compareTo(entrycol2);
         }
         else if (this.sort.equalsIgnoreCase("change"))
         {
             Double entrycol1 = new Double(((StockQuote) entry1).getChange());
             Double entrycol2 = new Double(((StockQuote) entry2).getChange());
             return entrycol1.compareTo(entrycol2);
         }
         else
         {
             Long entrycol1 = new Long(((StockQuote) entry1).getVolume());
             Long entrycol2 = new Long(((StockQuote) entry2).getVolume());
             return entrycol1.compareTo(entrycol2);
         }
 
     }
 
 }