01 <%@ page import="javax.naming.*,
02 java.text.*,
03 java.util.*,
04 trail.entity.beans.*, trail.transaction.*"%>
05
06 <%!
07 private Calculator cal = null;
08 private NumberFormat nf = null;
09
10 public void jspInit () {
11 try {
12 InitialContext ctx = new InitialContext();
13 cal = (Calculator) ctx.lookup(
14 "EJB3Trail/TransCalculator/local");
15 } catch (Exception e) {
16 e.printStackTrace ();
17 }
18
19 nf = NumberFormat.getInstance();
20 nf.setMaximumFractionDigits(2);
21 }
22 %>
23
24 <%
25 String status = "The update is successful";
26 if ("Update".equals(request.getParameter("action"))) {
27 try {
28 cal.updateExchangeRate(
29 Double.parseDouble(
30 request.getParameter("newrate")));
31 } catch (Exception e) {
32 status = "The update failed";
33 }
34 }
35 %>
36
37 <html><body>
38
39 <p>Update the calculation records with a new currency<br/>
40 <form action="update.jsp" method="POST">
41 Exchange rate = <input type="text" name="newrate" value="1.5">
42 <input type="hidden" name="action" value="Update"><br/>
43 <input type="submit" value="Update">
44 <INPUT type="button" value="Close Window" onClick="window.close()">
45 </form><br/>
46 <b>Status:</b> <%=status%><br/>
47 All records from past calculations<br/>
48 <table>
49 <tr>
50 <td>Time stamp</td>
51 <td>Fund</td>
52 <td>Investor</td>
53 <td>Monthly savings</td>
54 <td><b>Total investment</b></td>
55 </tr>
56
57 <%
58 Collection records = cal.getRecords ();
59 for (Iterator iter = records.iterator(); iter.hasNext();) {
60 TimedRecord record = (TimedRecord) iter.next();
61 %>
62
63 <tr>
64 <td><%=record.getTs()%></td>
65 <td><%=record.getFund().getName()%></td>
66 <td><%=record.getInvestor().getName()%></td>
67 <td><%=nf.format(record.getSaving())%></td>
68 <td><%=nf.format(record.getResult())%></td>
69 </tr>
70
71 <%
72 }
73 %>
74 </table>
75
76 </p>
77 </body></html>
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