public void saveToAddressBook(Context c) {
List<Address> currentAddresses = getAddressBook(c);
if (!isSavedInAddressBook()) {
storageIdentifier = getNextStorageIdentifier(currentAddresses);
}
ArrayList<Address> updatedAddresses = new ArrayList<Address>();
updatedAddresses.add(this);
for (Address a : currentAddresses) {
if (a.storageIdentifier != storageIdentifier) {
updatedAddresses.add(a);
}
}
persistAddressesToDisk(c, updatedAddresses);
}
public void deleteFromAddressBook(Context c) {
if (!isSavedInAddressBook()) {
return;
}
List<Address> addresses = getAddressBook(c);
Iterator<Address> iter = addresses.iterator();
while (iter.hasNext()) {
Address o = iter.next();
if (o.storageIdentifier == storageIdentifier) {
iter.remove();
break;
}
}
persistAddressesToDisk(c, addresses);
}
public static List<Address> getAddressBook(Context c) {
ObjectInputStream is = null;
try {
is =
new ObjectInputStream(
new BufferedInputStream(c.openFileInput(PERSISTED_ADDRESS_BOOK_FILENAME)));
ArrayList<Address> addresses = (ArrayList<Address>) is.readObject();
return addresses;
} catch (FileNotFoundException ex) {
// create a brand new address book
ArrayList<Address> addrs = new ArrayList<Address>();
persistAddressesToDisk(c, addrs);
return addrs;
} catch (Exception ex) {
throw new RuntimeException(ex);
} finally {
try {
is.close();
} catch (Exception ex) {
/* ignore */
}
}
}