4 //import java.util.Enumeration;
5 //import java.util.Vector;
6 import java.rmi.RemoteException;
8 import java.util.LinkedList;
10 import java.util.ListIterator;
11 import java.util.Vector;
13 import com.db4o.Db4oEmbedded;
14 import com.db4o.ObjectContainer;
15 import com.db4o.ObjectSet;
16 import com.db4o.config.EmbeddedConfiguration;
17 import com.db4o.cs.Db4oClientServer;
18 import com.db4o.cs.config.ClientConfiguration;
19 import com.db4o.query.Predicate;
21 import configuration.ConfigXML;
22 import domain.Account;
23 import domain.Administrator;
24 import domain.Booking;
25 import domain.HouseFeatures;
27 //import dataModel.Offer;
29 import domain.RuralHouse;
30 import exceptions.OfferCanNotBeBooked;
31 import exceptions.OverlappingOfferExists;
33 public class DB4oManager {
35 private static ObjectContainer db;
36 private static EmbeddedConfiguration configuration;
37 private static ClientConfiguration configurationCS;
38 private int bookingNumber = 0; // if it is "static" then it is not
40 private int offerNumber = 0; // if it is "static" then it is not serialized
41 private static DB4oManager theDB4oManager = null;
43 private static DB4oManagerAux theDB4oManagerAux;
47 private DB4oManager() throws Exception {
48 theDB4oManagerAux = new DB4oManagerAux(0, 0);
49 c = ConfigXML.getInstance();
50 System.out.println("Creating DB4oManager instance => isDatabaseLocal: "
51 + c.isDatabaseLocal() + " getDatabBaseOpenMode: "
52 + c.getDataBaseOpenMode());
54 if ((c.getDataBaseOpenMode().equals("initialize"))
55 && (c.isDatabaseLocal()))
56 new File(c.getDb4oFilename()).delete();
58 if (c.isDatabaseLocal()) {
60 System.out.println("DataBase opened");
61 } else // c.isDatabaseLocal==false
64 System.out.println("Remote DataBase opened");
66 if (c.getDataBaseOpenMode().equals("initialize")) {
68 System.out.println("DataBase initialized");
69 } else // c.getDataBaseOpenMode().equals("open")
72 ObjectSet<DB4oManagerAux> res = db.queryByExample(DB4oManagerAux.class);
73 ListIterator<DB4oManagerAux> listIter = res.listIterator();
74 if (listIter.hasNext())
75 theDB4oManagerAux = (DB4oManagerAux) res.next();
79 private static void openDB() {
80 configuration = Db4oEmbedded.newConfiguration();
81 configuration.common().activationDepth(c.getActivationDepth());
82 configuration.common().updateDepth(c.getUpdateDepth());
83 configuration.common().objectClass(Owner.class).cascadeOnUpdate(true);
84 configuration.common().objectClass(RuralHouse.class).cascadeOnUpdate(true);
85 configuration.common().objectClass(Account.class).cascadeOnUpdate(true);
86 db = Db4oEmbedded.openFile(configuration, c.getDb4oFilename());
89 private void openSDB() {
91 configurationCS = Db4oClientServer.newClientConfiguration();
92 configurationCS.common().activationDepth(c.getActivationDepth());
93 configurationCS.common().updateDepth(c.getUpdateDepth());
94 configurationCS.common().objectClass(Owner.class).cascadeOnDelete(true);
95 db = Db4oClientServer.openClient(configurationCS, c.getDatabaseNode(),
96 c.getDatabasePort(), c.getUser(), c.getPassword());
100 class DB4oManagerAux {
104 DB4oManagerAux(int bookingNumber, int offerNumber) {
105 this.bookingNumber = bookingNumber;
106 this.offerNumber = offerNumber;
110 public static DB4oManager getInstance() throws Exception {
111 if (theDB4oManager == null)
112 theDB4oManager = new DB4oManager();
113 return theDB4oManager;
116 public void initializeDB() {
119 Owner jon = new Owner("Jon");
120 Owner alfredo = new Owner("Alfredo");
121 jon.addRuralHouse("Ezkioko", "Ezkioko etxea", "Beatriz", 3, 3, 3,
123 jon.addRuralHouse("Eskiatze", "Eskiatzeko etxea", "Guazate", 4, 4,
125 jon.setBankAccount("1349 5677 21 2133567777");
126 alfredo.addRuralHouse("Aitonako", "Casa del abuelo", "Vegas", 5, 5,
129 alfredo.addRuralHouse("Murgoitz", "", "Cedro", 6, 6, 6, 6, 6);
130 alfredo.setBankAccount("4144 0087 23 9700002133");
131 Account jonAcc = new Account("userJon", "passJon", jon);
132 Account alfredoAcc = new Account("userAlfredo", "passAlfredo",
135 Account admin = new Account("admin","admin", true);
136 db.store(Administrator.giveAdmin());
140 db.store(alfredoAcc);
148 public void deleteDB() {
150 if (c.isDatabaseLocal() == false)
156 Owner proto = new Owner(null, null);
157 ObjectSet<Owner> result = db.queryByExample(proto);
158 while (result.hasNext()) {
159 Owner o = (Owner) result.next();
160 System.out.println("Deleted owner: " + o.toString());
169 public Offer createOffer(RuralHouse ruralHouse, Date firstDay,
170 Date lastDay, float price) throws RemoteException, Exception {
173 if (c.isDatabaseLocal() == false)
180 RuralHouse proto = new RuralHouse(ruralHouse.getHouseName(), null,
182 ObjectSet<RuralHouse> result = db.queryByExample(proto);
183 RuralHouse rh = (RuralHouse) result.next();
184 o = rh.createOffer(theDB4oManagerAux.offerNumber++, firstDay,
186 db.store(theDB4oManagerAux); // To store the new value for
191 } catch (com.db4o.ext.ObjectNotStorableException e) {
193 .println("Error: com.db4o.ext.ObjectNotStorableException in createOffer");
201 public void deleteOffer(Offer offer) throws RemoteException,
203 if (c.isDatabaseLocal() == false)
209 ObjectSet<Offer> of = db.queryByExample(offer);
210 RuralHouse rh =of.get(0).getRuralHouse();
211 System.out.println(rh.offers.remove(of.get(0)));
215 } catch (com.db4o.ext.ObjectNotStorableException e) {
217 .println("Error: com.db4o.ext.ObjectNotStorableException in createOffer");
224 @SuppressWarnings("static-access")
225 public LinkedList<RuralHouse>[] getAdminData(){
226 if (c.isDatabaseLocal() == false)
230 @SuppressWarnings("unchecked")
231 LinkedList<RuralHouse>[] ret = new LinkedList[2];
235 List<Administrator> admL = db.query(new Predicate<Administrator>(){
239 private static final long serialVersionUID = 1L;
241 public boolean match(Administrator admin){
246 ret[0] = admL.get(0).getAddRequest();
247 ret[1] = admL.get(0).getRemoveRequest();
257 @SuppressWarnings("static-access")
258 public void storeAdmin() {
259 if (c.isDatabaseLocal() == false)
265 List<Administrator> admL = db.query(new Predicate<Administrator>(){
269 private static final long serialVersionUID = 1L;
271 public boolean match(Administrator admin){
276 admL.get(0).setAddRequest(Administrator.getAddRequest());
277 admL.get(0).setRemoveRequest(Administrator.getRemoveRequest());
293 * This method creates a book with a corresponding parameters
296 * day, last day, house number and telephone
299 public Booking createBooking(RuralHouse ruralHouse, Date firstDate,
300 Date lastDate, String bookTelephoneNumber)
301 throws OfferCanNotBeBooked {
303 if (c.isDatabaseLocal() == false)
313 if (c.isDatabaseLocal() == false)
316 RuralHouse proto = new RuralHouse(ruralHouse.getHouseName(), null,
317 ruralHouse.getDescription(), ruralHouse.getDistrict(), null);
318 ObjectSet<RuralHouse> result = db.queryByExample(proto);
319 RuralHouse rh = (RuralHouse) result.next();
322 offer = rh.findOffer(firstDate, lastDate);
325 offer.createBooking(theDB4oManagerAux.bookingNumber++,
326 bookTelephoneNumber);
327 db.store(theDB4oManagerAux); // To store the new value for
331 bok = offer.getBooking();
334 } catch (com.db4o.ext.ObjectNotStorableException e) {
336 .println("Error: com.db4o.ext.ObjectNotStorableException in createBooking");
337 } catch (Exception exc) {
338 exc.printStackTrace();
346 * This method existing owners
349 public Vector<Owner> getOwners() throws RemoteException, Exception {
351 if (c.isDatabaseLocal() == false)
357 Owner proto = new Owner(null, null);
358 ObjectSet<Owner> result = db.queryByExample(proto);
359 Vector<Owner> owners = new Vector<Owner>();
360 while (result.hasNext())
361 owners.add((Owner) result.next());
368 public Vector<RuralHouse> getAllRuralHouses() throws RemoteException,
371 if (c.isDatabaseLocal() == false)
377 RuralHouse proto = new RuralHouse(null, null, null, null, null);
378 ObjectSet<RuralHouse> result = db.queryByExample(proto);
379 Vector<RuralHouse> ruralHouses = new Vector<RuralHouse>();
380 while (result.hasNext())
381 ruralHouses.add((RuralHouse) result.next());
388 public boolean existsOverlappingOffer(RuralHouse rh, Date firstDay,
389 Date lastDay) throws RemoteException, OverlappingOfferExists {
391 if (c.isDatabaseLocal() == false)
398 RuralHouse rhn = (RuralHouse) db.queryByExample(
399 new RuralHouse(rh.getHouseName(), null, null, null, null))
401 if (rhn.overlapsWith(firstDay, lastDay) != null)
402 throw new OverlappingOfferExists();
410 public static ObjectContainer getContainer() {
414 public void close() {
416 System.out.println("DataBase closed");
419 public String toString() {
420 return "bookingNumber=" + bookingNumber + " offerNumber=" + offerNumber;
427 * @throws RemoteException
430 public Vector<Account> getAccount(String usr, String pwd)
431 throws RemoteException, Exception {
433 if (c.isDatabaseLocal() == false)
439 Account proto = new Account(usr, pwd, null);
440 ObjectSet<Account> result = db.queryByExample(proto);
441 Vector<Account> accounts = new Vector<Account>();
442 while (result.hasNext())
443 accounts.add((Account) result.next());
453 public boolean storeRuralHouses(RuralHouse rh) {
455 if (c.isDatabaseLocal() == false)
460 boolean stored = false;
461 RuralHouse house = new RuralHouse(rh.getHouseName(), null, null, null,
464 ObjectSet<RuralHouse> result = db.queryByExample(house);
465 if (result.isEmpty()) {
466 Owner ow = (Owner) db.queryByExample(rh.getOwner()).get(0);
467 ObjectSet<RuralHouse> orh = db.queryByExample(new RuralHouse(null, ow, null, null, null));
468 ow.addRuralHouse(rh);
469 for (RuralHouse aa: orh){
476 db.delete(result.get(0));
487 public void removeHouse(RuralHouse rh, Owner owner) {
489 if (c.isDatabaseLocal() == false)
494 ObjectSet<Owner> result = db.queryByExample(owner);
495 ObjectSet<RuralHouse> rhs = db.queryByExample(rh);
496 if (!rhs.isEmpty()) {
497 Owner found = result.get(0);
498 found.getRuralHouses().remove(rhs.get(0));
499 db.delete(rhs.get(0));
503 } catch (Exception exc) {
504 exc.printStackTrace();
512 public Vector<RuralHouse> getRuralHouses(String name, String town,
513 int nBed, int nKit, int nBath, int nPark, int nLiv) {
514 HouseFeatures fea = new HouseFeatures(nBed, nKit, nBath, nLiv, nPark);
515 RuralHouse rh = new RuralHouse(name, null, null, town, fea);
516 if (c.isDatabaseLocal() == false)
522 ObjectSet<RuralHouse> result = db.queryByExample(rh);
523 Vector<RuralHouse> ruralHouses = new Vector<RuralHouse>();
524 while (result.hasNext())
525 ruralHouses.add(result.next());
528 } catch (NullPointerException e) {