@Override
protected BasicPaymentItems doInBackground(String... params) {
// Check whether the paymentProducts will be shown in groups
if (groupPaymentItems) {
// Create a threadpool that will execute the tasks of getting the paymentproducts and the
// paymentproductgroups
ExecutorService executorService = Executors.newFixedThreadPool(2);
// Create the callables that will be executed
Callable<BasicPaymentProducts> paymentProductsCallable =
new BasicPaymentProductsAsyncTask(
context,
paymentContext,
communicator,
new LinkedList<OnBasicPaymentProductsCallCompleteListener>());
Callable<BasicPaymentProductGroups> paymentProductGroupsCallable =
new BasicPaymentProductGroupsAsyncTask(
context,
paymentContext,
communicator,
new LinkedList<OnBasicPaymentProductGroupsCallCompleteListener>());
// Retrieve the futures from the callable tasks
Future<BasicPaymentProducts> paymentProductsFuture =
executorService.submit(paymentProductsCallable);
Future<BasicPaymentProductGroups> paymentProductGroupsFuture =
executorService.submit(paymentProductGroupsCallable);
try {
// Retrieve the basicPaymentProducts and basicPaymentProductGroups from the futures
BasicPaymentProducts basicPaymentProducts = paymentProductsFuture.get();
BasicPaymentProductGroups basicPaymentProductGroups = paymentProductGroupsFuture.get();
// Return a list of the basicPaymentProducts and basicPaymentProductGroups combined
return createBasicPaymentItems(basicPaymentProducts, basicPaymentProductGroups);
} catch (InterruptedException e) {
Log.i(TAG, "Error while getting paymentItems: " + e.getMessage());
e.printStackTrace();
} catch (ExecutionException e) {
Log.i(TAG, "Error while getting paymentItems: " + e.getMessage());
e.printStackTrace();
}
} else {
// Create the paymentProductsCallable
Callable<BasicPaymentProducts> paymentProductsCallable =
new BasicPaymentProductsAsyncTask(
context,
paymentContext,
communicator,
new LinkedList<OnBasicPaymentProductsCallCompleteListener>());
try {
// Retrieve the basicPaymentProducts
BasicPaymentProducts basicPaymentProducts = paymentProductsCallable.call();
return new BasicPaymentItems(
basicPaymentProducts.getPaymentProductsAsItems(),
basicPaymentProducts.getAccountsOnFile());
} catch (Exception e) {
Log.i(TAG, "Error while getting paymentItems: " + e.getMessage());
e.printStackTrace();
}
}
// If an error occurred no valid paymentItems can be returned
return null;
}
private BasicPaymentItems createBasicPaymentItems(
BasicPaymentProducts basicPaymentProducts,
BasicPaymentProductGroups basicPaymentProductGroups) {
// Validate the results of the calls
if (basicPaymentProducts == null && basicPaymentProductGroups == null) {
// If both basicPaymentProducts and basicPaymentProductGroups are null, return nul
return null;
} else if (basicPaymentProductGroups == null) {
// If basicPaymentProductGroups == null, return just the basicPaymentProducts
return new BasicPaymentItems(
basicPaymentProducts.getPaymentProductsAsItems(),
basicPaymentProducts.getAccountsOnFile());
} else if (basicPaymentProducts == null) {
// If basicPaymentProducts == null, return just the basicPaymentProductGroups
return new BasicPaymentItems(
basicPaymentProductGroups.getPaymentProductGroupsAsItems(),
basicPaymentProductGroups.getAccountsOnFile());
}
// Else: Merge the paymentItems together.
// Create a list of PaymentProductSelectables that will be filled and stored in the
// basicPaymentItems object that is returned
List<BasicPaymentItem> basicPaymentItems = new ArrayList<>();
// Create a list of AccountOnFiles that will be filled and stored in the basicPaymentItems
// object that is returned
List<AccountOnFile> accountsOnFile = new LinkedList<>();
// Filter out all basicPaymentProducts that also have a corresponding paymentProductGroup.
// Instead add the group to the
// list of basicPaymentItems that will be returned.
for (BasicPaymentProduct paymentProduct : basicPaymentProducts.getBasicPaymentProducts()) {
// Add the accountsOnFile of the current paymentProduct to the collection of accountOnFiles.
accountsOnFile.addAll(paymentProduct.getAccountsOnFile());
// becomes true if the paymentProduct has been matched with a group.
boolean groupMatch = false;
for (BasicPaymentProductGroup paymentProductGroup :
basicPaymentProductGroups.getBasicPaymentProductGroups()) {
// Does the current paymentProduct belong to the current paymentProductGroup
if (paymentProduct.getPaymentProductGroup() != null
&& paymentProduct.getPaymentProductGroup().equals(paymentProductGroup.getId())) {
// Add the paymentProductGroup to the basicPaymentItems that will be returned if it is not
// already in the list
if (!basicPaymentItems.contains(paymentProductGroup)) {
// Set the displayOrder of the group to the displayOrder of the first paymentProduct
// match
paymentProductGroup
.getDisplayHints()
.setDisplayOrder(paymentProduct.getDisplayHints().getDisplayOrder());
basicPaymentItems.add(paymentProductGroup);
}
// Product has been matched to a group
groupMatch = true;
// Products can not match with more then one group
break;
}
}
if (!groupMatch) {
// If the paymentProduct does not belong to a paymentProductGroup, add the paymentProduct to
// the
// basicPaymentItems that will be returned
basicPaymentItems.add(paymentProduct);
}
}
// Return a new BasicPaymentItems object that contains the paymentItems and the accountsOnFile
return new BasicPaymentItems(basicPaymentItems, accountsOnFile);
}