public void testGetAllISBNsDoesNotIncludeCompactDiscs() {
gateway.addCopies(
new CompactDisc("abcd", "Peace and War, The Musical", "Gilbertolov and Sullivanalov"), 2);
gateway.addCopies(new CompactDisc("xyz", "The White Album", "The Beatles"), 2);
Map isbnsTitles = gateway.findAllISBNsAndTitles();
assertEquals(1, isbnsTitles.size());
assertEquals(6, gateway.copyCount());
}
protected List findAllKeysForValuesOfType(Class type) {
List list = new ArrayList();
for (Iterator iter = mediaCopies.keySet().iterator(); iter.hasNext(); ) {
String key = (String) iter.next();
Media media = getFirstInList((List) mediaCopies.get(key));
if (media != null && media.getClass().equals(type)) list.add(key);
}
return list;
}
public MediaCopy addCopy(Media media) {
lastCopyId += 1;
MediaCopy mediaCopy = new MediaCopy(media, "" + lastCopyId);
String mediaId = media.getId();
List copies = (List) mediaCopies.get(mediaId);
if (copies == null) {
copies = new LinkedList();
mediaCopies.put(mediaId, copies);
}
copies.add(mediaCopy);
return mediaCopy;
}
public void testGetAllISBNsAndTitles() {
gateway.addCopy(new Book("isbn2", "Peace and War", "Toy Story")).getId();
gateway.addCopy(new Book("isbn3", "Son of Peace and War", "Toy Story II")).getId();
Map isbnsTitles = gateway.findAllISBNsAndTitles();
assertEquals(3, isbnsTitles.size());
Iterator iter = isbnsTitles.entrySet().iterator();
while (iter.hasNext()) {
Entry entry = (Entry) iter.next();
assertTrue(((String) entry.getKey()).startsWith("isbn"));
assertTrue(((String) entry.getValue()).contains("Peace"));
}
}
public Map findAllISBNsAndTitles() {
List isbns = findAllKeysForValuesOfType(Book.class);
Map map = new HashMap();
for (Iterator iter = isbns.iterator(); iter.hasNext(); ) {
String isbn = (String) iter.next();
List copies = (List) mediaCopies.get(isbn);
if (copies.size() > 0) {
String title = ((MediaCopy) copies.get(0)).getMedia().getTitle();
map.put(isbn, title);
}
}
return map;
}
public int copyCount() {
int count = 0;
for (Iterator iter = mediaCopies.values().iterator(); iter.hasNext(); ) {
List list = (List) iter.next();
count += list.size();
}
return count;
}
public void delete(MediaCopy copy) {
for (Iterator iter = mediaCopies.values().iterator(); iter.hasNext(); ) {
List list = (List) iter.next();
if (list.remove(copy)) {
return;
}
}
}
protected List findAllCollectionsOfType(Class type) {
List list = new ArrayList();
List keys = findAllKeysForValuesOfType(type);
for (Iterator iter = keys.iterator(); iter.hasNext(); ) {
String key = (String) iter.next();
list.add(mediaCopies.get(key));
}
return list;
}
public MediaCopy findCopyById(String copyId) {
Collection listsOfCopies = mediaCopies.values();
for (Iterator i = listsOfCopies.iterator(); i.hasNext(); ) {
List copies = (List) i.next();
for (int j = 0; j < copies.size(); j++) {
MediaCopy mediaCopy = (MediaCopy) copies.get(j);
if (mediaCopy.getId().equals(copyId)) return mediaCopy;
}
}
return null;
}
public List findAllLoanReceiptsFor(String patronId) {
List receipts = new LinkedList();
Collection copyLists = mediaCopies.values();
for (Iterator i = copyLists.iterator(); i.hasNext(); ) {
List copyList = (List) i.next();
for (int j = 0; j < copyList.size(); j++) {
MediaCopy mediaCopy = (MediaCopy) copyList.get(j);
LoanReceipt receipt = mediaCopy.getLoanReceipt();
if (receipt != null && receipt.getBorrower().getId().equals(patronId))
receipts.add(receipt);
}
}
return receipts;
}
public boolean contains(String id) {
return mediaCopies.containsKey(id);
}
public int mediaCount() {
return mediaCopies.size();
}
public void clear() {
lastCopyId = 0;
mediaCopies.clear();
}