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1 package edu.rice.rubis.servlets;
2
3 import java.io.FileReader  ;
4 import java.io.IOException ;
5 import java.io.PrintWriter ;
6 import java.net.URLEncoder ;
7 import java.sql.Connection ;
8 import java.sql.PreparedStatement ;
9 import java.sql.ResultSet ;
10 import java.util.GregorianCalendar ;
11
12 import javax.servlet.http.HttpServletResponse ;
13
14
19
20 public class ServletPrinter
21 {
22 private PrintWriter out;
23 private String servletName;
24 private GregorianCalendar startDate;
25
26 public ServletPrinter(
27 HttpServletResponse toWebServer,
28 String callingServletName)
29 {
30 startDate = new GregorianCalendar ();
31 toWebServer.setContentType("text/html");
32 try
33 {
34 out = toWebServer.getWriter();
35 }
36 catch (IOException ioe)
37 {
38 ioe.printStackTrace();
39 }
40 servletName = callingServletName;
41 }
42
43 void printFile(String filename)
44 {
45 FileReader fis = null;
46 try
47 {
48 fis = new FileReader (filename);
49 char[] data = new char[4 * 1024]; int bytesRead;
51 bytesRead = fis.read(data);
52 while (
53 bytesRead != -1)
54 {
55 out.write(data, 0, bytesRead);
56 bytesRead = fis.read(data);
57 }
58 }
59 catch (Exception e)
60 {
61 out.println("Unable to read file (exception: " + e + ")<br>");
62 }
63 finally
64 {
65 if (fis != null)
66 try
67 {
68 fis.close();
69 }
70 catch (Exception ex)
71 {
72 out.println(
73 "Unable to close the file reader (exception: " + ex + ")<br>");
74 }
75 }
76 }
77
78 void printHTMLheader(String title)
79 {
80 printFile(Config.HTMLFilesPath + "/header.html");
81 out.println("<title>" + title + "</title>");
82 }
83
84 void printHTMLfooter()
85 {
86 GregorianCalendar endDate = new GregorianCalendar ();
87
88 out.println(
89 "<br><hr>RUBiS (C) Rice University/INRIA<br><i>Page generated by "
90 + servletName
91 + " in "
92 + TimeManagement.diffTime(startDate, endDate)
93 + "</i><br>");
94 out.println("</body>");
95 out.println("</html>");
96 }
97
98 void printHTML(String msg)
99 {
100 out.println(msg);
101 }
102
103 void printHTMLHighlighted(String msg)
104 {
105 out.println("<TABLE width=\"100%\" bgcolor=\"#CCCCFF\">");
106 out.println(
107 "<TR><TD align=\"center\" width=\"100%\"><FONT size=\"4\" color=\"#000000\"><B>"
108 + msg
109 + "</B></FONT></TD></TR>");
110 out.println("</TABLE><p>");
111 }
112
113
117 void printCategory(String categoryName, int categoryId)
118 {
119 try
120 {
121 out.println(
122 "<a HREF=\"edu.rice.rubis.servlets.SearchItemsByCategory?category="
123 + categoryId
124 + "&categoryName="
125 + URLEncoder.encode(categoryName)
126 + "\">"
127 + categoryName
128 + "</a><br>");
129 }
130 catch (Exception e)
131 {
132 out.println("Unable to print Category (exception: " + e + ")<br>");
133 }
134 }
135
136
137 void printCategoryByRegion(String categoryName, int categoryId, int regionId)
138 {
139 try
140 {
141 out.println(
142 "<a HREF=\"edu.rice.rubis.servlets.SearchItemsByRegion?category="
143 + categoryId
144 + "&categoryName="
145 + URLEncoder.encode(categoryName)
146 + "®ion="
147 + regionId
148 + "\">"
149 + categoryName
150 + "</a><br>");
151 }
152 catch (Exception e)
153 {
154 out.println("Unable to print Category (exception: " + e + ")<br>");
155 }
156 }
157
158
159 void printCategoryToSellItem(String categoryName, int categoryId, int userId)
160 {
161 try
162 {
163 out.println(
164 "<a HREF=\"edu.rice.rubis.servlets.SellItemForm?category="
165 + categoryId
166 + "&user="
167 + userId
168 + "\">"
169 + categoryName
170 + "</a><br>");
171 }
172 catch (Exception e)
173 {
174 out.println("Unable to print Category (exception: " + e + ")<br>");
175 }
176 }
177
178
182 void printRegion(String regionName)
183 {
184 try
185 {
186 out.println(
187 "<a HREF=\"edu.rice.rubis.servlets.BrowseCategories?region="
188 + URLEncoder.encode(regionName)
189 + "\">"
190 + regionName
191 + "</a><br>");
192 }
193 catch (Exception e)
194 {
195 out.println("Unable to print Region (exception: " + e + ")<br>");
196 }
197 }
198
199
203 void printItemHeader()
204 {
205 out.println(
206 "<TABLE border=\"1\" summary=\"List of items\">"
207 + "<THEAD>"
208 + "<TR><TH>Designation<TH>Price<TH>Bids<TH>End Date<TH>Bid Now"
209 + "<TBODY>");
210 }
211
212 void printItem(
213 String itemName,
214 int itemId,
215 float maxBid,
216 int nbOfBids,
217 String endDate)
218 {
219 try
220 {
221 out.println(
222 "<TR><TD><a HREF=\"edu.rice.rubis.servlets.ViewItem?itemId="
223 + itemId
224 + "\">"
225 + itemName
226 + "<TD>"
227 + maxBid
228 + "<TD>"
229 + nbOfBids
230 + "<TD>"
231 + endDate
232 + "<TD><a HREF=\"edu.rice.rubis.servlets.PutBidAuth?itemId="
233 + itemId
234 + "\"><IMG SRC=\"/rubis_servlets/bid_now.jpg\" height=22 width=90></a>");
235 }
236 catch (Exception e)
237 {
238 out.println("Unable to print Item (exception: " + e + ")<br>");
239 }
240 }
241
242 void printItemFooter()
243 {
244 out.println("</TABLE>");
245 }
246
247 void printItemFooter(String URLprevious, String URLafter)
248 {
249 out.println("</TABLE>\n");
250 out.println(
251 "<p><CENTER>\n"
252 + URLprevious
253 + "\n   "
254 + URLafter
255 + "\n</CENTER>\n");
256 }
257
258
261 void printItemDescription(
262 int itemId,
263 String itemName,
264 String description,
265 float initialPrice,
266 float reservePrice,
267 float buyNow,
268 int quantity,
269 float maxBid,
270 int nbOfBids,
271 String sellerName,
272 int sellerId,
273 String startDate,
274 String endDate,
275 int userId,
276 Connection conn)
277 {
278 PreparedStatement stmt = null;
279 try
280 {
281 String firstBid;
282
283 if (maxBid == 0)
285 {
286 firstBid = "none";
287 }
288 else
289 {
290 if (quantity > 1)
291 {
292 try
293 {
294
297
298 stmt =
299 conn.prepareStatement(
300 "SELECT id,qty,max_bid FROM bids WHERE item_id=? ORDER BY bid DESC LIMIT ?");
301 stmt.setInt(1, itemId);
302 stmt.setInt(2, quantity);
303 ResultSet rs = stmt.executeQuery();
304 if (rs.first())
305 {
306 int numberOfItems = 0;
307 int qty;
308 do
309 {
310 qty = rs.getInt("qty");
311 numberOfItems = numberOfItems + qty;
312 if (numberOfItems >= quantity)
313 {
314 maxBid = rs.getFloat("max_bid");
315 ;
316 break;
317 }
318 }
319 while (rs.next());
320 }
321 }
322 catch (Exception e)
323 {
324 printHTML("Problem while computing current bid: " + e + "<br>");
325 return;
326 }
327 }
328 Float foo = new Float (maxBid);
329 firstBid = foo.toString();
330 }
331 if (userId > 0)
332 {
333 printHTMLheader("RUBiS: Bidding\n");
334 printHTMLHighlighted("You are ready to bid on: " + itemName);
335 }
336 else
337 {
338 printHTMLheader("RUBiS: Viewing " + itemName + "\n");
339 printHTMLHighlighted(itemName);
340 }
341 out.println(
342 "<TABLE>\n"
343 + "<TR><TD>Currently<TD><b><BIG>"
344 + maxBid
345 + "</BIG></b>\n");
346 if (reservePrice > 0)
348 { if (maxBid >= reservePrice)
350 out.println("(The reserve price has been met)\n");
351 else
352 out.println("(The reserve price has NOT been met)\n");
353 }
354 out.println(
355 "<TR><TD>Quantity<TD><b><BIG>"
356 + quantity
357 + "</BIG></b>\n"
358 + "<TR><TD>First bid<TD><b><BIG>"
359 + firstBid
360 + "</BIG></b>\n"
361 + "<TR><TD># of bids<TD><b><BIG>"
362 + nbOfBids
363 + "</BIG></b> (<a HREF=\"/rubis_servlets/servlet/edu.rice.rubis.servlets.ViewBidHistory?itemId="
364 + itemId
365 + "\">bid history</a>)\n"
366 + "<TR><TD>Seller<TD><a HREF=\"/rubis_servlets/servlet/edu.rice.rubis.servlets.ViewUserInfo?userId="
367 + sellerId
368 + "\">"
369 + sellerName
370 + "</a> (<a HREF=\"/rubis_servlets/servlet/edu.rice.rubis.servlets.PutCommentAuth?to="
371 + sellerId
372 + "&itemId="
373 + itemId
374 + "\">Leave a comment on this user</a>)\n"
375 + "<TR><TD>Started<TD>"
376 + startDate
377 + "\n"
378 + "<TR><TD>Ends<TD>"
379 + endDate
380 + "\n"
381 + "</TABLE>");
382 if (buyNow > 0)
384 out.println(
385 "<p><a HREF=\"/rubis_servlets/servlet/edu.rice.rubis.servlets.BuyNowAuth?itemId="
386 + itemId
387 + "\">"
388 + "<IMG SRC=\"/rubis_servlets/buy_it_now.jpg\" height=22 width=150></a>"
389 + " <BIG><b>You can buy this item right now for only $"
390 + buyNow
391 + "</b></BIG><br><p>\n");
392
393 if (userId <= 0)
394 {
395 out.println(
396 "<a HREF=\"/rubis_servlets/servlet/edu.rice.rubis.servlets.PutBidAuth?itemId="
397 + itemId
398 + "\"><IMG SRC=\"/rubis_servlets/bid_now.jpg\" height=22 width=90> on this item</a>\n");
399 }
400
401 printHTMLHighlighted("Item description");
402 out.println(description);
403 out.println("<br><p>\n");
404
405 if (userId > 0)
406 {
407 printHTMLHighlighted("Bidding");
408 float minBid = maxBid + 1;
409 printHTML(
410 "<form action=\"/rubis_servlets/servlet/edu.rice.rubis.servlets.StoreBid\" method=POST>\n"
411 + "<input type=hidden name=minBid value="
412 + minBid
413 + ">\n"
414 + "<input type=hidden name=userId value="
415 + userId
416 + ">\n"
417 + "<input type=hidden name=itemId value="
418 + itemId
419 + ">\n"
420 + "<input type=hidden name=maxQty value="
421 + quantity
422 + ">\n"
423 + "<center><table>\n"
424 + "<tr><td>Your bid (minimum bid is "
425 + minBid
426 + "):</td>\n"
427 + "<td><input type=text size=10 name=bid></td></tr>\n"
428 + "<tr><td>Your maximum bid:</td>\n"
429 + "<td><input type=text size=10 name=maxBid></td></tr>\n");
430 if (quantity > 1)
431 printHTML(
432 "<tr><td>Quantity:</td>\n"
433 + "<td><input type=text size=5 name=qty></td></tr>\n");
434 else
435 printHTML("<input type=hidden name=qty value=1>\n");
436 printHTML("</table><p><input type=submit value=\"Bid now!\"></center><p>\n");
437 }
438 }
439 catch (Exception e)
440 {
441 out.println(
442 "Unable to print Item description (exception: " + e + ")<br>\n");
443 }
444 }
445
446
450 void printUserBidsHeader()
451 {
452 printHTMLHighlighted("<p><h3>Items you have bid on.</h3>\n");
453 out.println(
454 "<TABLE border=\"1\" summary=\"Items You've bid on\">\n"
455 + "<THEAD>\n"
456 + "<TR><TH>Designation<TH>Initial Price<TH>Current price<TH>Your max bid<TH>Quantity"
457 + "<TH>Start Date<TH>End Date<TH>Seller<TH>Put a new bid\n"
458 + "<TBODY>\n");
459 }
460
461 void printItemUserHasBidOn(
462 int itemId,
463 String itemName,
464 float initialPrice,
465 int quantity,
466 String startDate,
467 String endDate,
468 int sellerId,
469 String sellerName,
470 float currentPrice,
471 float maxBid,
472 String username,
473 String password)
474 {
475 try
476 {
477 out.println(
478 "<TR><TD><a HREF=\"/rubis_servlets/servlet/edu.rice.rubis.servlets.ViewItem?itemId="
479 + itemId
480 + "\">"
481 + itemName
482 + "<TD>"
483 + initialPrice
484 + "<TD>"
485 + currentPrice
486 + "<TD>"
487 + maxBid
488 + "<TD>"
489 + quantity
490 + "<TD>"
491 + startDate
492 + "<TD>"
493 + endDate
494 + "<TD><a HREF=\"/rubis_servlets/servlet/edu.rice.rubis.servlets.ViewUserInfo?userId="
495 + sellerId
496 + "\">"
497 + sellerName
498 + "<TD><a HREF=\"/rubis_servlets/servlet/edu.rice.rubis.servlets.PutBid?itemId="
499 + itemId
500 + "&nickname="
501 + username
502 + "&password="
503 + password
504 + "\"><IMG SRC=\"/rubis_servlets/bid_now.jpg\" height=22 width=90></a>\n");
505 }
506 catch (Exception e)
507 {
508 out.println("Unable to print Item (exception: " + e + ")<br>\n");
509 }
510 }
511
512 void printUserWonItemHeader()
513 {
514 printHTML("<br>");
515 printHTMLHighlighted("<p><h3>Items you won in the past 30 days.</h3>\n");
516 out.println(
517 "<TABLE border=\"1\" summary=\"List of items\">\n"
518 + "<THEAD>\n"
519 + "<TR><TH>Designation<TH>Price you bought it<TH>Seller"
520 + "<TBODY>\n");
521 }
522
523 void printUserWonItem(
524 int itemId,
525 String itemName,
526 float currentPrice,
527 int sellerId,
528 String sellerName)
529 {
530 try
531 {
532 out.println(
533 "<TR><TD><a HREF=\"/rubis_servlets/servlet/edu.rice.rubis.servlets.ViewItem?itemId="
534 + itemId
535 + "\">"
536 + itemName
537 + "</a>\n"
538 + "<TD>"
539 + currentPrice
540 + "\n"
541 + "<TD><a HREF=\"/rubis_servlets/servlet/edu.rice.rubis.servlets.ViewUserInfo?userId="
542 + sellerId
543 + "\">"
544 + sellerName
545 + "</a>\n");
546 }
547 catch (Exception e)
548 {
549 out.println("Unable to print Item (exception: " + e + ")<br>\n");
550 }
551 }
552
553 void printUserBoughtItemHeader()
554 {
555 printHTML("<br>");
556 printHTMLHighlighted("<p><h3>Items you bouhgt in the past 30 days.</h3>\n");
557 out.println(
558 "<TABLE border=\"1\" summary=\"List of items\">\n"
559 + "<THEAD>\n"
560 + "<TR><TH>Designation<TH>Quantity<TH>Price you bought it<TH>Seller"
561 + "<TBODY>\n");
562 }
563
564 void printUserBoughtItem(
565 int itemId,
566 String itemName,
567 float buyNow,
568 int quantity,
569 int sellerId,
570 String sellerName)
571 {
572 try
573 {
574 out.println(
575 "<TR><TD><a HREF=\"/rubis_servlets/servlet/edu.rice.rubis.servlets.ViewItem?itemId="
576 + itemId
577 + "\">"
578 + itemName
579 + "</a>\n"
580 + "<TD>"
581 + quantity
582 + "\n"
583 + "<TD>"
584 + buyNow
585 + "\n"
586 + "<TD><a HREF=\"/rubis_servlets/servlet/edu.rice.rubis.beans.servlets.ViewUserInfo?userId="
587 + sellerId
588 + "\">"
589 + sellerName
590 + "</a>\n");
591 }
592 catch (Exception e)
593 {
594 out.println("Unable to print Item (exception: " + e + ")<br>\n");
595 }
596 }
597
598 void printSellHeader(String title)
599 {
600 printHTMLHighlighted("<p><h3>" + title + "</h3>\n");
601 out.println(
602 "<TABLE border=\"1\" summary=\"List of items\">\n"
603 + "<THEAD>\n"
604 + "<TR><TH>Designation<TH>Initial Price<TH>Current price<TH>Quantity<TH>ReservePrice<TH>Buy Now"
605 + "<TH>Start Date<TH>End Date\n"
606 + "<TBODY>\n");
607 }
608
609 void printSell(
610 int itemId,
611 String itemName,
612 float initialPrice,
613 float reservePrice,
614 int quantity,
615 float buyNow,
616 String startDate,
617 String endDate,
618 float currentPrice)
619 {
620 try
621 {
622 out.println(
623 "<TR><TD><a HREF=\"/rubis_servlets/servlet/edu.rice.rubis.servlets.ViewItem?itemId="
624 + itemId
625 + "\">"
626 + itemName
627 + "<TD>"
628 + initialPrice
629 + "<TD>"
630 + currentPrice
631 + "<TD>"
632 + quantity
633 + "<TD>"
634 + reservePrice
635 + "<TD>"
636 + buyNow
637 + "<TD>"
638 + startDate
639 + "<TD>"
640 + endDate
641 + "\n");
642 }
643 catch (Exception e)
644 {
645 out.println("Unable to print Item (exception: " + e + ")<br>\n");
646 }
647 }
648
649
653
659 void printItemDescriptionToBuyNow(
660 int itemId,
661 String itemName,
662 String description,
663 float buyNow,
664 int quantity,
665 int sellerId,
666 String sellerName,
667 String startDate,
668 String endDate,
669 int userId)
670 {
671 try
672 {
673
674 printHTMLheader("RUBiS: Buy Now");
675 printHTMLHighlighted("You are ready to buy this item: " + itemName);
676
677 out.println(
678 "<TABLE>\n"
679 + "<TR><TD>Quantity<TD><b><BIG>"
680 + quantity
681 + "</BIG></b>\n"
682 + "<TR><TD>Seller<TD><a HREF=\"/rubis_servlets/servlet/edu.rice.rubis.servlets.ViewUserInfo?userId="
683 + sellerId
684 + "\">"
685 + sellerName
686 + "</a> (<a HREF=\"/rubis_servlets/servlet/edu.rice.rubis.servlets.PutCommentAuth?to="
687 + sellerId
688 + "&itemId="
689 + itemId
690 + "\">Leave a comment on this user</a>)\n"
691 + "<TR><TD>Started<TD>"
692 + startDate
693 + "\n"
694 + "<TR><TD>Ends<TD>"
695 + endDate
696 + "\n"
697 + "</TABLE>");
698
699 printHTMLHighlighted("Item description");
700 out.println(description);
701 out.println("<br><p>\n");
702
703 printHTMLHighlighted("Buy Now");
704 printHTML(
705 "<form action=\"/rubis_servlets/servlet/edu.rice.rubis.servlets.StoreBuyNow\" method=POST>\n"
706 + "<input type=hidden name=userId value="
707 + userId
708 + ">\n"
709 + "<input type=hidden name=itemId value="
710 + itemId
711 + ">\n"
712 + "<input type=hidden name=maxQty value="
713 + quantity
714 + ">\n");
715 if (quantity > 1)
716 printHTML(
717 "<center><table><tr><td>Quantity:</td>\n"
718 + "<td><input type=text size=5 name=qty></td></tr></table></center>\n");
719 else
720 printHTML("<input type=hidden name=qty value=1>\n");
721 printHTML("<p><center><input type=submit value=\"Buy now!\"></center><p>\n");
722 }
723 catch (Exception e)
724 {
725 out.println(
726 "Unable to print Item description (exception: " + e + ")<br>\n");
727 }
728 }
729
730
734 void printBidHistoryHeader()
735 {
736 out.println(
737 "<TABLE border=\"1\" summary=\"List of bids\">"
738 + "<THEAD>"
739 + "<TR><TH>User ID<TH>Bid amount<TH>Date of bid"
740 + "<TBODY>");
741 }
742
743 void printBidHistoryFooter()
744 {
745 out.println("</TBODY></TABLE>");
746 }
747
748 void printBidHistory(int userId, String bidderName, float bid, String date)
749 {
750 try
751 {
752 out.println(
753 "<TR><TD><a HREF=\"edu.rice.rubis.servlets.ViewUserInfo?userId="
754 + userId
755 + "\">"
756 + bidderName
757 + "<TD>"
758 + bid
759 + "<TD>"
760 + date);
761 }
762 catch (Exception e)
763 {
764 out.println("Unable to print Bid (exception: " + e + ")<br>");
765 }
766 }
767
768
772 void printCommentHeader()
773 {
774 out.println("<DL>");
775 }
776
777 void printComment(String userName, int userId, String date, String comment)
778 {
779 try
780 {
781 out.println(
782 "<DT><b><BIG><a HREF=\"edu.rice.rubis.servlets.ViewUserInfo?userId="
783 + userId
784 + "\">"
785 + userName
786 + "</a></BIG></b>"
787 + " wrote the "
788 + date
789 + "<DD><i>"
790 + comment
791 + "</i><p>");
792 }
793 catch (Exception e)
794 {
795 out.println("Unable to print Comment (exception: " + e + ")<br>");
796 }
797 }
798
799 void printCommentFooter()
800 {
801 out.println("</DL>");
802 }
803
804 }
805 |
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