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1
26
27 package servlets;
28
29 import java.io.IOException;
30 import java.io.PrintWriter;
31 import java.text.DateFormat;
32 import java.text.SimpleDateFormat;
33 import java.util.Calendar;
34 import java.util.Collection;
35 import java.util.Date;
36 import java.util.HashSet;
37 import java.util.Iterator;
38 import java.util.Set;
39
40 import javax.naming.Context;
41 import javax.naming.InitialContext;
42 import javax.servlet.ServletException;
43 import javax.servlet.http.HttpServlet;
44 import javax.servlet.http.HttpServletRequest;
45 import javax.servlet.http.HttpServletResponse;
46 import javax.transaction.UserTransaction;
47
48 import com.titan.cabin.CabinHomeLocal;
49 import com.titan.cabin.CabinLocal;
50 import com.titan.cruise.CruiseHomeLocal;
51 import com.titan.cruise.CruiseLocal;
52 import com.titan.customer.CustomerHomeLocal;
53 import com.titan.customer.CustomerLocal;
54 import com.titan.customer.Name;
55 import com.titan.reservation.ReservationHomeLocal;
56 import com.titan.reservation.ReservationLocal;
57 import com.titan.ship.ShipHomeLocal;
58 import com.titan.ship.ShipLocal;
59
60
64 public class ServletTest2 extends HttpServlet {
65
66
77 public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
78
79 boolean ok = true;
80 response.setContentType("text/html");
81 PrintWriter out = response.getWriter();
82 out.println("<html>");
83 out.println("<head>");
84 out.println("<title>");
85 out.println("O'Reilly Examples (Suite)</title>");
86 out.println("<link rel=\"stylesheet\" HREF=\"style.css\" />");
87 out.println("</head>");
88 out.println("<body style=\"background : white; color : black;\">");
89 out.println("<h1>Example Showing Cruise/Ship and Cruise/Reservation Relationships</h1>");
90 Context initialContext = null;
91 try {
92 initialContext = new InitialContext();
93 } catch (Exception e) {
94 out.println("<p>ERROR: Cannot get initial context for JNDI: " + e + "</p>");
95 return;
96 }
97
98 ShipHomeLocal shiphome = null;
100 CruiseHomeLocal cruisehome = null;
101 ReservationHomeLocal reservationhome = null;
102 CustomerHomeLocal customerhome = null;
103 CabinHomeLocal cabinhome = null;
104 UserTransaction tran = null;
105 try {
106 shiphome = (ShipHomeLocal) initialContext.lookup("java:comp/env/ejb/ShipHomeLocal");
107 cruisehome = (CruiseHomeLocal) initialContext.lookup("java:comp/env/ejb/CruiseHomeLocal");
108 reservationhome = (ReservationHomeLocal) initialContext.lookup("java:comp/env/ejb/ReservationHomeLocal");
109 customerhome = (CustomerHomeLocal) initialContext.lookup("java:comp/env/ejb/CustomerHomeLocal");
110 cabinhome = (CabinHomeLocal) initialContext.lookup("java:comp/env/ejb/CabinHomeLocal");
111 tran = (UserTransaction) initialContext.lookup("java:comp/UserTransaction");
112 } catch (Exception e) {
113 out.println("<p>ERROR: Cannot lookup java:comp/env/ejb/XXHomeLocal: " + e + "</p>");
114 return;
115
116 }
117
118 out.println("<a HREF=\"index.html\"><b>Back to Menu</b></a>");
119
120 out.println("<H2>Example Showing Cruise/Ship Relationship (Fig 7-12)</H2>");
121 out.println("<p>(ie Sharing a bean reference in a Many-to-One Relationship)</p>");
122
123 out.println("<H3>Creating Ships</H3>");
124 ShipLocal shipA = null;
126 ShipLocal shipB = null;
127 try {
128 shipA = shiphome.create(new Integer(1001), "Ship A", 30000.0);
129 shipB = shiphome.create(new Integer(1002), "Ship B", 40000.0);
130 } catch (Exception e) {
131 out.println("<p>ERROR: Exception caught " + e + "</p>");
132 return;
133 }
134 out.println("<ul>");
135 out.println("<li>id = '" + shipA.getId() + "', name = '" + shipA.getName() + "', tonnage = '"
136 + shipA.getTonnage() + "'</li>");
137 out.println("<li>id = '" + shipB.getId() + "', name=" + shipB.getName() + "', tonnage = '" + shipB.getTonnage()
138 + " </li>");
139 out.println("</ul>");
140
141 out.println("<H3>Creating Cruises</H3>");
142 CruiseLocal[] cruises = new CruiseLocal[7];
145 try {
146 cruises[1] = cruisehome.create("Cruise 1", shipA);
147 cruises[2] = cruisehome.create("Cruise 2", shipA);
148 cruises[3] = cruisehome.create("Cruise 3", shipA);
149 cruises[4] = cruisehome.create("Cruise 4", shipB);
150 cruises[5] = cruisehome.create("Cruise 5", shipB);
151 cruises[6] = cruisehome.create("Cruise 6", shipB);
152 } catch (Exception e) {
153 out.println("<p>ERROR: Exception caught " + e + "</p>");
154 return;
155 }
156 out.println("<ul>");
157 for (int jj = 1; jj < 7; jj++) {
158 CruiseLocal cc = cruises[jj];
159 out.println("<li>'" + cc.getName() + "' is using '" + cc.getShip().getName() + "'</li>");
160 }
161 out.println("</ul>");
162
163 out.print("<H3>Changing 'Cruise 1' to use same ship as 'Cruise 4'</H3>");
164 ShipLocal newship = cruises[4].getShip();
165 cruises[1].setShip(newship);
166 out.println("<ul>");
167 for (int jj = 1; jj < 7; jj++) {
168 CruiseLocal cc = cruises[jj];
169 out.println("<li>'" + cc.getName() + "' is using '" + cc.getShip().getName() + "'</li>");
170 }
171 out.println("</ul>");
172
173 out.println("<H3>Content of Tables</H3>");
174 try {
175 listCruises(out, cruisehome);
176 listShips(out, shiphome);
177 } catch (Exception e) {
178 out.println("<p>ERROR: exception caught = " + e + " </p>");
179 }
180
181 out.println("<H2>Example Showing Cruise/Reservation Relationship Using set() (Fig 7-14)</H2>");
182 out
183 .println("<p>(ie Sharing an entire collection in a One-to-Many bidirectional Relationship Using set() )</p>");
184 out.println("<H3>Creating some Cruise beans</H3>");
185 CruiseLocal cruiseA = null;
188 CruiseLocal cruiseB = null;
189 try {
190 cruiseA = cruisehome.create("Cruise A", null);
191 cruiseB = cruisehome.create("Cruise B", null);
192 } catch (Exception e) {
193 out.println("<p>ERROR: exception caught = " + e + " </p>");
194 }
195 out.println("<ul>");
196 out.print("<li>name = '" + cruiseA.getName() + "'</li>");
197 out.print("<li>name = '" + cruiseB.getName() + "'</li>");
198 out.println("</ul>");
199
200 out.print("<H3>Creating Reservations</H3>");
201 ReservationLocal reservations[] = new ReservationLocal[7];
205 Calendar date = Calendar.getInstance();
206 date.set(2002, 10, 1);
207 try {
210 reservations[1] = reservationhome.create(cruiseA, null);
211 reservations[1].setDate(date.getTime());
212 reservations[1].setAmountPaid(4000.0);
213 date.add(Calendar.DAY_OF_MONTH, 7);
214
215 reservations[2] = reservationhome.create(cruiseA, null);
216 reservations[2].setDate(date.getTime());
217 reservations[2].setAmountPaid(5000.0);
218 date.add(Calendar.DAY_OF_MONTH, 7);
219
220 reservations[3] = reservationhome.create(cruiseA, null);
221 reservations[3].setDate(date.getTime());
222 reservations[3].setAmountPaid(6000.0);
223 date.add(Calendar.DAY_OF_MONTH, 7);
224
225 reservations[4] = reservationhome.create(cruiseB, null);
226 reservations[4].setDate(date.getTime());
227 reservations[4].setAmountPaid(7000.0);
228 date.add(Calendar.DAY_OF_MONTH, 7);
229
230 reservations[5] = reservationhome.create(cruiseB, null);
231 reservations[5].setDate(date.getTime());
232 reservations[5].setAmountPaid(8000.0);
233 date.add(Calendar.DAY_OF_MONTH, 7);
234
235 reservations[6] = reservationhome.create(cruiseB, null);
236 reservations[6].setDate(date.getTime());
237 reservations[6].setAmountPaid(9000.0);
238 date.add(Calendar.DAY_OF_MONTH, 7);
239
240 } catch (Exception e) {
241 out.println("<p>ERROR: Exception caught " + e + "</p>");
242 return;
243 }
244 out.println("<ul>");
245 DateFormat df = new SimpleDateFormat("MM/dd/yyyy");
246 for (int jj = 1; jj < 7; jj++) {
247 ReservationLocal rr = reservations[jj];
248 CruiseLocal thiscruise = rr.getCruise();
249 String cruisename = (thiscruise != null ? thiscruise.getName() : "No Cruise!");
250 out.println("<li>reservationDate = '" + df.format(rr.getDate()) + "', amountPaid = '" + rr.getAmountPaid()
251 + "', for '" + cruisename + "'</li> ");
252 }
253 out.println("</ul>");
254
255 out.println("<H3>Testing CruiseB.setReservations(CruiseA.getReservations())</H3>");
256 Collection areservations = cruiseA.getReservations();
258 cruiseB.setReservations(areservations);
259 String[] cruisename = new String[7];
261 out.println("<ul>");
262 for (int jj = 1; jj < 7; jj++) {
263 ReservationLocal rr = reservations[jj];
264 CruiseLocal thiscruise = rr.getCruise();
265 cruisename[jj] = (thiscruise != null ? thiscruise.getName() : "No Cruise!");
266 out.print("<li>reservationDate = '" + df.format(rr.getDate()) + "', amount paid = '" + rr.getAmountPaid()
267 + "', for '" + cruisename[jj] + "'</li>");
268 }
269 out.println("</ul>");
270 if (!cruisename[4].equals("No Cruise!") || !cruisename[5].equals("No Cruise!")
271 || !cruisename[6].equals("No Cruise!")) {
272 ok = false;
273 }
274
275 out.print("<H3>Content of Tables</H3>");
276 try {
277 listCruises(out, cruisehome);
278 listReservations(out, reservationhome);
279 } catch (Exception e) {
280 out.println("<p>ERROR: exception caught = " + e + " </p>");
281 return;
282 }
283
284 out.println("<H2>Example Showing Cruise/Reservation Relationship Using addAll(..) (Fig 7-15)</H2>");
285 out.print("<p>(ie Using Collection.addAll() in a One-to-Many bidirectional relationship)</p>");
286
292 date.set(2002, 10, 1);
293 for (int jj = 1; jj < 7; jj++) {
295 try {
296 reservations[jj].remove();
297 } catch (Exception ex) {
298 out.println("<p>ERROR: exception caught = " + ex + "</p>");
299 }
300 }
301 try {
303 reservations[1] = reservationhome.create(cruiseA, null);
304 reservations[1].setDate(date.getTime());
305 reservations[1].setAmountPaid(4000.0);
306 date.add(Calendar.DAY_OF_MONTH, 7);
307
308 reservations[2] = reservationhome.create(cruiseA, null);
309 reservations[2].setDate(date.getTime());
310 reservations[2].setAmountPaid(5000.0);
311 date.add(Calendar.DAY_OF_MONTH, 7);
312
313 reservations[3] = reservationhome.create(cruiseA, null);
314 reservations[3].setDate(date.getTime());
315 reservations[3].setAmountPaid(6000.0);
316 date.add(Calendar.DAY_OF_MONTH, 7);
317
318 reservations[4] = reservationhome.create(cruiseB, null);
319 reservations[4].setDate(date.getTime());
320 reservations[4].setAmountPaid(7000.0);
321 date.add(Calendar.DAY_OF_MONTH, 7);
322
323 reservations[5] = reservationhome.create(cruiseB, null);
324 reservations[5].setDate(date.getTime());
325 reservations[5].setAmountPaid(8000.0);
326 date.add(Calendar.DAY_OF_MONTH, 7);
327
328 reservations[6] = reservationhome.create(cruiseB, null);
329 reservations[6].setDate(date.getTime());
330 reservations[6].setAmountPaid(9000.0);
331 date.add(Calendar.DAY_OF_MONTH, 7);
332
333 } catch (Exception e) {
334 out.println("<p>ERROR: Exception caught " + e + "<p>");
335 return;
336 }
337
338 Collection breservations = null;
339 try {
340 tran.begin();
341 areservations = cruiseA.getReservations();
342 breservations = cruiseB.getReservations();
343 breservations.addAll(areservations);
344 tran.commit();
345 } catch (Exception e) {
346 e.printStackTrace();
347 try {
348 tran.rollback();
349 } catch (Exception ex) {
350 ex.printStackTrace();
351 return;
352 }
353 return;
354 }
355 out.println("<ul>");
357 for (int jj = 1; jj < 7; jj++) {
358 ReservationLocal rr = reservations[jj];
359 CruiseLocal thiscruise = rr.getCruise();
360 cruisename[jj] = (thiscruise != null ? thiscruise.getName() : "No Cruise!");
361 out.print("<li>reservationDate = '" + df.format(rr.getDate()) + "', amount paid = '" + rr.getAmountPaid()
362 + "', for '" + cruisename[jj] + "'</li>");
363 }
364 out.println("</ul>");
365
366 out.print("<H3>Contents of Tables</H3>");
367 try {
368 listCruises(out, cruisehome);
369 listReservations(out, reservationhome);
370 } catch (Exception e) {
371 out.println("<p>ERROR: exception caught = " + e + "</p>");
372 return;
373 }
374
375 out.println("<H2>Example Showing Reservation/Customer Relationships (Fig 7-17)</H2>");
376 out.print("<p>(ie Using Collection.addAll() in a Many-to-Many bidirectional relationship)</p>");
377
378 out.println("<H3>Using 'ShipA' and 'CruiseA'</H3>");
379 cruiseA.setShip(shipA);
380 out.println("<ul>");
381 out.println("<li>cruise.getName() = '" + cruiseA.getName() + "'</li>");
382 out.println("<li>ship.getName() = '" + shipA.getName() + "'</li>");
383 out.println("<li>cruise.getShip().getName() = '" + cruiseA.getShip().getName() + "'</li>");
384 out.println("</ul>");
385
386 out.println("<H3>Creating two sets of customers, one with 1-3, and one with 4-6</H3>");
387 Set lowcustomers = new HashSet();
389 Set highcustomers = new HashSet();
390 CustomerLocal cust = null;
391 out.println("<ul>");
392 for (int kk = 1; kk < 7; kk++) {
393 try {
394 cust = customerhome.create(new Integer(kk));
395 } catch (Exception e) {
396 out.println("<p>ERROR: exception caught = " + e + "</p>");
397 }
398 cust.setName(new Name("Customer " + kk, "mike"));
399 if (kk <= 3) {
400 lowcustomers.add(cust);
401 } else {
402 highcustomers.add(cust);
403 }
404 out.print("<li>customer '" + cust.getName().getLastName() + "' created </li>");
405 }
406 out.println("</ul>");
407 for (int jj = 1; jj < 7; jj++) {
409 try {
410 reservations[jj].remove();
411 } catch (Exception ex) {
412 out.println("<p>ERROR: exception caught = " + ex + " </p>");
413 }
414 }
415
416 out.print("<H3>Creating Reservations '1' and '2', each with 3 customers</H3>");
417 try {
418 reservations[1] = reservationhome.create(cruiseA, lowcustomers);
419 reservations[1].setDate(date.getTime());
420 reservations[1].setAmountPaid(4000.0);
421 date.add(Calendar.DAY_OF_MONTH, 7);
422
423 reservations[2] = reservationhome.create(cruiseA, highcustomers);
424 reservations[2].setDate(date.getTime());
425 reservations[2].setAmountPaid(5000.0);
426 date.add(Calendar.DAY_OF_MONTH, 7);
427 } catch (Exception e) {
428 out.println("<p>ERROR: Exception caught " + e + "</p>");
429 return;
430 }
431 reportReservations(out, reservations, 2, tran);
433
434 out.print("<H3>Performing customers_a.addAll(customers_b) test</H3>");
435 try {
441 tran.begin();
442 Set customers_a = reservations[1].getCustomers();
443 Set customers_b = reservations[2].getCustomers();
444 customers_a.addAll(customers_b);
445 tran.commit();
446 } catch (Exception e) {
447 e.printStackTrace();
448 try {
449 tran.rollback();
450 } catch (Exception ex) {
451 out.println("<p>ERROR: Exception caught " + ex + "</p>");
452 return;
453 }
454 }
455 reportReservations(out, reservations, 2, tran);
457
458 out.print("<H2>Sharing an entire collection in a Many-to-Many bidirectional relationship (Fig 7-18)</H2>");
459 out.println("<H3>Creating four sets of customers 1-3, 2-4, 3-5, 4-6 </H3>");
460 Set customers13 = new HashSet();
462 Set customers24 = new HashSet();
463 Set customers35 = new HashSet();
464 Set customers46 = new HashSet();
465 out.println("<ul>");
466 for (int kk = 1; kk < 7; kk++) {
467 try {
468 cust = customerhome.create(new Integer(kk + 500));
469 cust.setName(new Name("Customer_1 " + kk, "bill"));
470 } catch (Exception e) {
471 out.println("<p>ERROR: exception caught = " + e + " </p></ul>");
472 return;
473 }
474 if (kk <= 3) {
475 customers13.add(cust);
476 }
477 if (kk >= 2 && kk <= 4) {
478 customers24.add(cust);
479 }
480 if (kk >= 3 && kk <= 5) {
481 customers35.add(cust);
482 }
483 if (kk >= 4) {
484 customers46.add(cust);
485 }
486 out.print("<li>customer '" + cust.getName().getLastName() + "' created</li>");
487 }
488 out.println("</ul>");
489
490 out.print("<H3>Creating Reservations 1-4 using three customers each</H3>");
491 ReservationLocal reservations1[] = new ReservationLocal[5];
492 try {
493 reservations1[1] = reservationhome.create(cruiseA, customers13);
494 reservations1[1].setDate(date.getTime());
495 reservations1[1].setAmountPaid(4000.0);
496 date.add(Calendar.DAY_OF_MONTH, 7);
497
498 reservations1[2] = reservationhome.create(cruiseA, customers24);
499 reservations1[2].setDate(date.getTime());
500 reservations1[2].setAmountPaid(5000.0);
501 date.add(Calendar.DAY_OF_MONTH, 7);
502
503 reservations1[3] = reservationhome.create(cruiseA, customers35);
504 reservations1[3].setDate(date.getTime());
505 reservations1[3].setAmountPaid(6000.0);
506 date.add(Calendar.DAY_OF_MONTH, 7);
507
508 reservations1[4] = reservationhome.create(cruiseA, customers46);
509 reservations1[4].setDate(date.getTime());
510 reservations1[4].setAmountPaid(7000.0);
511 date.add(Calendar.DAY_OF_MONTH, 7);
512 } catch (Exception e) {
513 out.println("<p>ERROR: Exception caught " + e + "</p>");
514 return;
515 }
516 reportReservations(out, reservations1, 4, tran);
517
518 out.print("<H3>Performing reservationD.setCustomers(customersA) (Fig 7-18)</H3>");
519 try {
520 tran.begin();
521 Set customers_a = reservations1[1].getCustomers();
522 reservations1[4].setCustomers(customers_a);
523 tran.commit();
524 } catch (Exception e) {
525 e.printStackTrace();
526 try {
527 tran.rollback();
528 } catch (Exception ex) {
529 out.println("<p>ERROR: Exception caught " + ex + "</p>");
530 return;
531 }
532 }
533 reportReservations(out, reservations1, 4, tran);
534
535 out.print("<H2>Example Showing Reservation/Cabin Relationships (Fig 7-20)</H2>");
536 out.print("<p>(ie Removing beans in a Many-to-Many unidirectional relationship)</p>");
537 out.print("<H3>Creating Cabins four sets of cabins, 1-3, 2-4, 3-5, 4-6</H3>");
538 Set cabins13 = new HashSet();
540 Set cabins24 = new HashSet();
541 Set cabins35 = new HashSet();
542 Set cabins46 = new HashSet();
543 CabinLocal cabin = null;
544 out.println("<ul>");
545 for (int kk = 1; kk < 7; kk++) {
546 try {
547 cabin = cabinhome.create(new Integer(kk));
548 } catch (Exception e) {
549 out.println("<p>ERROR: exception caught = " + e + " </p></ul>");
550 }
551 cabin.setName("Cabin " + kk);
552 if (kk <= 3) {
553 cabins13.add(cabin);
554 }
555 if (kk >= 2 && kk <= 4) {
556 cabins24.add(cabin);
557 }
558 if (kk >= 3 && kk <= 5) {
559 cabins35.add(cabin);
560 }
561 if (kk >= 4) {
562 cabins46.add(cabin);
563 }
564 out.print("<li>cabin '" + cabin.getName() + "' created</li>");
565 }
566 out.println("</ul>");
567
568 out.print("<H3>Creating Reservations 1-4 using three cabins each</H2>");
569 ReservationLocal reservations2[] = new ReservationLocal[5];
570 try {
573 reservations2[1] = reservationhome.create(cruiseA, null);
574 reservations2[1].setCabins(cabins13);
575 reservations2[1].setDate(date.getTime());
576 reservations2[1].setAmountPaid(4000.0);
577 date.add(Calendar.DAY_OF_MONTH, 7);
578
579 reservations2[2] = reservationhome.create(cruiseA, null);
580 reservations2[2].setCabins(cabins24);
581 reservations2[2].setDate(date.getTime());
582 reservations2[2].setAmountPaid(5000.0);
583 date.add(Calendar.DAY_OF_MONTH, 7);
584
585 reservations2[3] = reservationhome.create(cruiseA, null);
586 reservations2[3].setCabins(cabins35);
587 reservations2[3].setDate(date.getTime());
588 reservations2[3].setAmountPaid(6000.0);
589 date.add(Calendar.DAY_OF_MONTH, 7);
590
591 reservations2[4] = reservationhome.create(cruiseA, null);
592 reservations2[4].setCabins(cabins46);
593 reservations2[4].setDate(date.getTime());
594 reservations2[4].setAmountPaid(7000.0);
595 date.add(Calendar.DAY_OF_MONTH, 7);
596 } catch (Exception e) {
597 out.println("<p>ERROR: Exception caught " + e + "</p>");
598 return;
599 }
600 reportReservations(out, reservations2, 4, tran);
601
602 out.print("<H3>Performing cabins_a collection iterator.remove() test</H3>");
603 try {
605 tran.begin();
606 Set cabins_a = reservations2[1].getCabins();
607 Iterator iterator = cabins_a.iterator();
608 out.print("<ul>");
609 while (iterator.hasNext()) {
610 CabinLocal cc = (CabinLocal) iterator.next();
611 out.print("<li>Removing '" + cc.getName() + "' from 'cabins_a'" + "</li>");
612 iterator.remove();
613 }
614 out.print("</ul>");
615 tran.commit();
616 } catch (Exception e) {
617 try {
618 tran.rollback();
619 } catch (Exception ex) {
620 out.println("<p>ERROR: Exception caught " + ex + "</p>");
621 return;
622 }
623 }
624 reportReservations(out, reservations2, 4, tran);
625
626 out.print("<H2>Example Showing Reservation/Cabin Relationships </H2>");
627
628 out.print("<H3>Creating Cabins in ShipA</H3>");
629 CabinLocal cabins[] = new CabinLocal[4];
630 try {
631 cabins[1] = cabinhome.create(new Integer(10));
632 cabins[1].setShip(shipA);
633 cabins[1].setDeckLevel(1);
634 cabins[1].setName("Minnesota Suite");
635 cabins[1].setBedCount(2);
636
637 cabins[2] = cabinhome.create(new Integer(11));
638 cabins[2].setShip(shipA);
639 cabins[2].setDeckLevel(2);
640 cabins[2].setName("California Suite");
641 cabins[2].setBedCount(2);
642
643 cabins[3] = cabinhome.create(new Integer(12));
644 cabins[3].setShip(shipA);
645 cabins[3].setDeckLevel(3);
646 cabins[3].setName("Missouri Suite");
647 cabins[3].setBedCount(2);
648 } catch (Exception e) {
649 out.println("<p>ERROR: Exception caught " + e + "</p>");
650 return;
651 }
652 out.println("<ul>");
653 for (int jj = 1; jj < 4; jj++) {
654 CabinLocal cc = cabins[jj];
655 out.print("<li>cabin '" + cc.getName() + "' is on ship '" + cc.getShip().getName() + "'</li>");
656 }
657 out.println("</ul>");
658
659 out.print("<H3>Creating Reservations</H3>");
660 ReservationLocal reservations3[] = new ReservationLocal[3];
661 try {
662 reservations3[1] = reservationhome.create(cruiseA, null);
663 reservations3[1].setDate(date.getTime());
664 reservations3[1].setAmountPaid(4000.0);
665 date.add(Calendar.DAY_OF_MONTH, 7);
666
667 reservations3[2] = reservationhome.create(cruiseA, null);
668 reservations3[2].setDate(date.getTime());
669 reservations3[2].setAmountPaid(5000.0);
670 date.add(Calendar.DAY_OF_MONTH, 7);
671 } catch (Exception e) {
672 out.println("<p>ERROR: Exception caught " + e + "</p>");
673 return;
674 }
675 reportReservations(out, reservations3, 2, tran);
676
677 out.print("<H3>Creating Links from Reservations to Cabins</H3>");
678 Set cabins1 = new HashSet(2);
679 cabins1.add(cabins[1]);
680 cabins1.add(cabins[2]);
681 Set cabins2 = new HashSet(2);
682 cabins2.add(cabins[2]);
683 cabins2.add(cabins[3]);
684 reservations3[1].setCabins(cabins1);
685 reservations3[2].setCabins(cabins2);
686 reportReservations(out, reservations3, 2, tran);
687
688 out.print("<H3>Testing reservation_b.setCabins(reservation_a.getCabins())</H3>");
689 try {
690 tran.begin();
691 Set cabins_a = reservations3[1].getCabins();
692 reservations3[2].setCabins(cabins_a);
693 tran.commit();
694 } catch (Exception e) {
695 try {
696 tran.rollback();
697 } catch (Exception ex) {
698 out.println("<p>ERROR: Exception caught " + ex + "</p>");
699 return;
700 }
701 }
702 reportReservations(out, reservations3, 2, tran);
703
704 out.print("<H2>Cleaning all tables</H2>");
705 try {
706 Collection clc = customerhome.findAllCustomers();
707 java.util.Iterator iterator = clc.iterator();
708 while (iterator.hasNext()) {
709 CustomerLocal cl = (CustomerLocal) iterator.next();
710 cl.remove();
711 }
712 clc = shiphome.findAllShips();
713 iterator = clc.iterator();
714 while (iterator.hasNext()) {
715 ShipLocal sl = (ShipLocal) iterator.next();
716 sl.remove();
717 }
718 clc = cruisehome.findAllCruises();
719 iterator = clc.iterator();
720 while (iterator.hasNext()) {
721 CruiseLocal cl = (CruiseLocal) iterator.next();
722 cl.remove();
723 }
724
725 clc = reservationhome.findAllReservations();
726 iterator = clc.iterator();
727 while (iterator.hasNext()) {
728 ReservationLocal rl = (ReservationLocal) iterator.next();
729 rl.remove();
730 }
731 clc = cabinhome.findAllCabins();
732 iterator = clc.iterator();
733 while (iterator.hasNext()) {
734 CabinLocal cl = (CabinLocal) iterator.next();
735 cl.remove();
736 }
737
738 } catch (Exception ex) {
739 out.println("<p>ERROR: during cleaning exception caught = " + ex + "</p>");
740 }
741 if (ok) {
742 out.println("<p align=\"center\"><strong>Servlet is OK.</strong></p>");
743 }
744 out.println("<a HREF=\"index.html\"><b>Back to Menu</b></a>");
745 out.println("</body>");
746 out.println("</html>");
747 }
748
749 private void listCruises(PrintWriter out, CruiseHomeLocal chl) throws Exception {
750 out.println("<p><b>Cruises</b> Table Content:</p>");
751 out.println("<ul>");
752 java.util.Collection clc = chl.findAllCruises();
753 if (clc == null) {
754 out.println("<li>Cruises table is empty</li>");
755 } else {
756 java.util.Iterator iterator = clc.iterator();
757 while (iterator.hasNext()) {
758 CruiseLocal cl = (CruiseLocal) iterator.next();
759 String cname = cl.getName();
760 String sname = (cl.getShip() != null ? cl.getShip().getName() : "No Ship!");
761 out.println("<li>cruiseName = '" + cname + "', shipName = '" + sname + "'</li>");
762
763 }
764 }
765 out.println("</ul>");
766 }
767
768 private void listShips(PrintWriter out, ShipHomeLocal cchl) throws Exception {
769 out.println("<p><b>Ships</b> Table Content:</p>");
770 out.println("<ul>");
771 java.util.Collection clc = cchl.findAllShips();
772 if (clc == null) {
773 out.println("<li>Ships table is empty </li>");
774 } else {
775 java.util.Iterator iterator = clc.iterator();
776 while (iterator.hasNext()) {
777 ShipLocal ccl = (ShipLocal) iterator.next();
778 double tonnage = ccl.getTonnage();
779 String name = ccl.getName();
780 out.println("<li>shipName = '" + name + "', tonnage = '" + tonnage + "'</li>");
781 }
782 }
783 out.println("</ul>");
784 }
785
786 private void listReservations(PrintWriter out, ReservationHomeLocal cchl) throws Exception {
787 out.println("<p><b>Reservations</b> Table Content:</p>");
788 out.println("<ul>");
789 java.util.Collection clc = cchl.findAllReservations();
790 if (clc == null) {
791 out.println("<li>Reservations table is empty</li>");
792 out.println("</ul>");
793 } else {
794 java.util.Iterator iterator = clc.iterator();
795 while (iterator.hasNext()) {
796 ReservationLocal ccl = (ReservationLocal) iterator.next();
797 Date date = ccl.getDate();
798 out.println("<li>reservation date = '" + date + "'</li>");
799 }
800 out.println("</ul>");
801 }
802 }
803
804 private void reportReservations(PrintWriter out, ReservationLocal reservations[], int nb, UserTransaction tran) {
805 DateFormat df = new SimpleDateFormat("MM/dd/yyyy");
806 out.println("<ul>");
808 for (int jj = 1; jj < nb + 1; jj++) {
809 ReservationLocal rr = reservations[jj];
810 CruiseLocal thiscruise = rr.getCruise();
811 String cruisename = (thiscruise != null ? thiscruise.getName() : "No Cruise!");
812 String customerinfo = "";
817 CustomerLocal cust = null;
818 String cabininfo = "";
819 try {
820 tran.begin();
821 Set customerset = rr.getCustomers();
822 Iterator iterator = customerset.iterator();
823 while (iterator.hasNext()) {
824 cust = (CustomerLocal) iterator.next();
825 customerinfo += cust.getName().getLastName() + " ";
826 }
827 Set cabinset = rr.getCabins();
828 iterator = cabinset.iterator();
829 while (iterator.hasNext()) {
830 CabinLocal cabin = (CabinLocal) iterator.next();
831 cabininfo += cabin.getName() + " ";
832 }
833 tran.commit();
834 } catch (Exception e) {
835 e.printStackTrace();
836 try {
837 tran.rollback();
838 } catch (Exception ex) {
839 out.println("<p>ERROR: Exception caught " + ex + "</p>");
840 return;
841 }
842 }
843 out.print("<li>reservationDate = '" + df.format(rr.getDate()) + "', amountPaid = '" + rr.getAmountPaid()
844 + "', for '" + cruisename + "' with :</li>");
845 out.print("<ul>");
846 if (!customerinfo.equals("")) {
847 out.print("<li>customers: " + customerinfo);
848 }
849 if (!cabininfo.equals("")) {
850 out.print("<li>cabins: " + cabininfo + "</li>");
851 }
852 out.print("</ul>");
853 }
854 out.println("</ul>");
855 }
856
857 } |
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