/// <summary>
/// Allocate Campaign based on userStorageMap, trafficAllocation by computing userHash for userId and provided CampaignTKey.
/// </summary>
/// <param name="settings"></param>
/// <param name="userStorageMap"></param>
/// <param name="campaignKey"></param>
/// <param name="userId"></param>
/// <param name="apiName">Api name which called this implementation, Activate/GetVariation/Track. This is for logging purpose.</param>
/// <returns></returns>
public BucketedCampaign Allocate(AccountSettings settings, UserStorageMap userStorageMap, string campaignKey, string userId, string apiName = null)
{
BucketedCampaign allocatedCampaign = null;
BucketedCampaign requestedCampaign = settings.Campaigns.Find((campaign) => campaign.Key.Equals(campaignKey));
if (requestedCampaign != null)
{
allocatedCampaign = AllocateCampaign(userId, campaignKey, userStorageMap, requestedCampaign);
if (allocatedCampaign != null)
{
if (allocatedCampaign.Status.Equals(Constants.Campaign.STATUS_RUNNING, System.StringComparison.InvariantCultureIgnoreCase))
{
LogInfoMessage.UserEligibilityForCampaign(file, userId, true);
return(allocatedCampaign);
}
}
}
LogErrorMessage.CampaignNotRunning(file, campaignKey, apiName);
LogInfoMessage.UserEligibilityForCampaign(file, userId, false);
LogDebugMessage.UserNotPartOfCampaign(file, userId, campaignKey, nameof(Allocate));
return(null);
}
public void SaveAndLoadInfoMessage()
{
var info = new LogInfoMessage("A test info message");
var data = BinaryDataExtensions.SaveToMemoryStream(info);
var loadedInfo = data.CreateFromMemoryStream() as LogInfoMessage;
Assert.AreEqual(info.Text, loadedInfo.Text);
Assert.AreEqual(info.TimeStamp, loadedInfo.TimeStamp);
}
/// <summary>
/// Compute userHash and check for traffic allocation for given campaign.
/// </summary>
/// <param name="userId"></param>
/// <param name="requestedCampaign"></param>
/// <returns></returns>
private BucketedCampaign AllocateByTrafficAllocation(string userId, BucketedCampaign requestedCampaign)
{
var selectedCampaign = requestedCampaign;
var userHash = this._userHasher.ComputeBucketValue(userId, Constants.Campaign.MAX_TRAFFIC_PERCENT, 1);
if (requestedCampaign.PercentTraffic < userHash)
{
selectedCampaign = null;
LogInfoMessage.AudienceConditionNotMet(file, userId);
}
return(selectedCampaign);
}
/// <summary>
/// Allocate variation by checking UserProfileService, Campaign Traffic Allocation and compute UserHash to check variation allocation by bucketing.
/// </summary>
/// <param name="campaignTestKey"></param>
/// <param name="userId"></param>
/// <returns>
/// If Variation is allocated, returns UserAssignedInfo with valid details, else return Empty UserAssignedInfo.
/// </returns>
private UserAllocationInfo AllocateVariation(string campaignTestKey, string userId, string apiName = null)
{
UserProfileMap userProfileMap = this._userProfileService.GetUserMap(campaignTestKey, userId);
BucketedCampaign selectedCampaign = this._campaignAllocator.Allocate(this._settings, userProfileMap, campaignTestKey, userId, apiName);
if (selectedCampaign != null)
{
Variation variation = this._variationAllocator.Allocate(userProfileMap, selectedCampaign, userId);
if (variation != null)
{
LogInfoMessage.VariationAllocated(file, userId, campaignTestKey, variation.Name);
LogDebugMessage.GotVariationForUser(file, userId, campaignTestKey, variation.Name, nameof(AllocateVariation));
this._userProfileService.SaveUserMap(userId, selectedCampaign.Key, variation.Name);
return(new UserAllocationInfo(variation, selectedCampaign));
}
}
LogInfoMessage.NoVariationAllocated(file, userId, campaignTestKey);
return(new UserAllocationInfo());
}