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Java > Open Source Codes > org > apache > jetspeed > modules > actions > portlets > StockQuoteAction


1 /*
2  * Copyright 2000-2001,2004 The Apache Software Foundation.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16
17 package org.apache.jetspeed.modules.actions.portlets;
18
19 import org.apache.jetspeed.portal.portlets.VelocityPortlet;
20 import org.apache.jetspeed.services.logging.JetspeedLogFactoryService;
21 import org.apache.jetspeed.services.logging.JetspeedLogger;
22
23 // Turbine stuff
24 import org.apache.turbine.util.RunData;
25 import org.apache.turbine.services.TurbineServices;
26 // Velocity Stuff
27 import org.apache.velocity.context.Context;
28
29 //import org.apache.jetspeed.util.StringUtils;
30 import org.apache.jetspeed.webservices.finance.stockmarket.StockQuoteService;
31 import org.apache.jetspeed.webservices.finance.stockmarket.StockQuote;
32 import org.apache.jetspeed.services.resources.JetspeedResources;
33
34 import org.apache.jetspeed.util.PortletConfigState;
35 import org.apache.jetspeed.util.StringUtils;
36
37 /**
38  * This action sets up the template context for retrieving stock quotes.
39  *
40  * @author <a HREF="mailto:taylor@apache.org">David Sean Taylor</a>
41  * @author <a HREF="mailto:morciuch@apache.org">Mark Orciuch</a>
42  */
43
44 public class StockQuoteAction extends VelocityPortletAction
45 {
46     private static final String JavaDoc SYMBOLS = "symbols";
47     private static final String JavaDoc COLUMNS = "columns";
48     private static final String JavaDoc QUOTES = "quotes";
49     private static final String JavaDoc[] ALL_COLUMNS = {"Symbol","Price","Change","Volume"};
50     private static final String JavaDoc SELECTED_COLUMNS = "selected-columns";
51
52     /**
53      * Static initialization of the logger for this class
54      */
55     private static final JetspeedLogger logger = JetspeedLogFactoryService.getLogger(StockQuoteAction.class.getName());
56     
57     /**
58      * Build the maximized state content for this portlet. (Same as normal state).
59      *
60      * @param portlet The velocity-based portlet that is being built.
61      * @param context The velocity context for this request.
62      * @param rundata The turbine rundata context for this request.
63      */
64     protected void buildMaximizedContext( VelocityPortlet portlet,
65                                           Context context,
66                                           RunData rundata )
67     {
68         buildNormalContext( portlet, context, rundata);
69     }
70
71     /**
72      * Build the configure state content for this portlet.
73      * TODO: we could configure this portlet with configurable skins, etc..
74      *
75      * @param portlet The velocity-based portlet that is being built.
76      * @param context The velocity context for this request.
77      * @param rundata The turbine rundata context for this request.
78      */
79     protected void buildConfigureContext( VelocityPortlet portlet,
80                                           Context context,
81                                           RunData rundata )
82     {
83         buildNormalContext( portlet, context, rundata);
84
85         setTemplate(rundata, "stock-quote-customize");
86
87
88     }
89
90     /**
91      * Build the normal state content for this portlet.
92      *
93      * @param portlet The velocity-based portlet that is being built.
94      * @param context The velocity context for this request.
95      * @param rundata The turbine rundata context for this request.
96      */
97
98     protected void buildNormalContext( VelocityPortlet portlet,
99                                        Context context,
100                                        RunData rundata )
101     {
102         try
103         {
104             // Get reference to stock quote web service
105 StockQuoteService service = (StockQuoteService) TurbineServices.getInstance().
106                 getService(StockQuoteService.SERVICE_NAME);
107
108             // Retrieve portlet parameters
109 String JavaDoc symbols = PortletConfigState.getParameter(portlet, rundata, SYMBOLS, "IBM,MSFT,ORCL,SUNW");
110             String JavaDoc columns = PortletConfigState.getParameter(portlet, rundata, COLUMNS,
111                                                              StringUtils.arrayToString(ALL_COLUMNS, ","));
112             String JavaDoc[] selectedColumnsArray = StringUtils.stringToArray(columns, ",");
113
114             // Request stock quote(s) from the stock quote web service
115 String JavaDoc[] symbolArray = StringUtils.stringToArray(symbols, ",");
116             StockQuote[] quotes = service.fullQuotes(symbolArray);
117
118             // Place appropriate objects in Velocity context
119 context.put(QUOTES, quotes);
120             context.put(SELECTED_COLUMNS, selectedColumnsArray);
121             context.put(COLUMNS, columns);
122         }
123         catch (Exception JavaDoc e)
124         {
125            // log the error msg
126 logger.error("Exception", e);
127
128             rundata.setMessage("Error in Jetspeed Stock Quotes: " + e.toString());
129             rundata.setStackTrace(org.apache.turbine.util.StringUtils.stackTrace(e), e);
130             rundata.setScreenTemplate(JetspeedResources.getString("template.error","Error"));
131         }
132     }
133
134
135
136 }
137
138
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