static void Main(string[] args)
{
List <PhoneAcc> accounts = new List <PhoneAcc>(); // List for storing the final accounts to be displayed
IDList idList = new IDList(); // Class for storing ID list retrieved from the web service
// Start timing
Stopwatch stopWatch = new Stopwatch();
stopWatch.Start();
// Retrieve the list of account IDs from the web service
idList = getIDListFromWeb(null);
if (env == (int)Env.Debugging)
{
Console.WriteLine("Retrieved ID list: " + idList.ToString());
}
// Process the retrieved accounts and store valid accounts
processPhoneAcc(idList, ref accounts, numRes);
// While the retrieved list has a token for retrieving even more phone accounts
// Keep retrieving and processing accounts
while (!String.IsNullOrEmpty(idList.token))
{
// Retrieve the list of account IDs from the web service
idList = getIDListFromWeb(idList.token);
if (env == (int)Env.Debugging)
{
Console.WriteLine("Retrieved ID list: " + idList.ToString());
}
// Process the retrieved accounts and store valid accounts
processPhoneAcc(idList, ref accounts, numRes);
}
// Sort the collected accounts based on name
AccNameCompare nameCompare = new AccNameCompare();
accounts.Sort(nameCompare);
// Stop timing
stopWatch.Stop();
long time = stopWatch.ElapsedMilliseconds;
// Print out the result
Console.WriteLine();
Console.WriteLine("Time elapsed: {0} ms", time);
Console.WriteLine();
Console.WriteLine(accounts.Count + " results sorted by name: ");
for (int i = 0; i < accounts.Count; i++)
{
Console.WriteLine(accounts[i].ToString());
}
// Wait for return key to pause the console
Console.ReadLine();
} // end of Main()
/// <summary>
/// Process phone accounts retrieved from web service
/// Store phone accounts with valid US phone numbers and youngest age to the account list
/// </summary>
/// <param name="idList">The list of account IDs retrieved from web service</param>
/// <param name="accounts">The list of phone accounts to collect</param>
/// <param name="numRes">The number of account to collect</param>
private static void processPhoneAcc(IDList idList, ref List <PhoneAcc> accounts, int numRes)
{
// Iterate through all the retrieved IDs
// Using each ID, retrieve the account from the web service
// Add [numRes] accounts with valid number to the account list
// If the number of accounts retrieved from web service is less than [numRes]
// Add all the retrieved accounts with valid number
int maxAgeIndex = 0; // track the ID of the account the max age among the collecte accounts
for (int i = 0; i < idList.result.Count; i++)
{
string json = null;
using (WebClient webClient = new WebClient())
{
// Retrieve the account using ID
try
{
// URL: endpoint + detail route + retrieved id of account
json = webClient.DownloadString(ENDPOINT_URL + DETAIL_ROUTE + idList.result[i]);
}
catch (Exception e)
{
Console.WriteLine(e);
}
}
PhoneAcc acc = JsonConvert.DeserializeObject <PhoneAcc>(json);
if (env == (int)Env.Debugging)
{
Console.WriteLine("Retrieved account: " + acc.ToString());
}
if (acc.hasValidNumber())
{
// If not enough results have been collected
if (accounts.Count < numRes)
{
if (env == (int)Env.Debugging)
{
Console.WriteLine("Adding account with ID: " + acc.id);
}
accounts.Add(acc);
// Update the index of the account with max age
if (acc.age >= accounts[maxAgeIndex].age)
{
// The index of the new acc is count - 1
maxAgeIndex = accounts.Count - 1;
}
}
// If enough results have been collected
else
{
// Compare the retrieved acc to the collected acc with max age
if (acc.age < accounts[maxAgeIndex].age)
{
if (env == (int)Env.Debugging)
{
Console.WriteLine("Replacing account " + accounts[maxAgeIndex].id + " with account " + acc.id);
}
// Replace the acc with max age with the retrieved acc
accounts[maxAgeIndex] = acc;
// Update the index of the account with max age
maxAgeIndex = getMaxAgeIndex(accounts);
}
}
}
}
}