public async Task IntegrationWithRepo()
{
BsonMapRegistrationHelpers.AddBsonMapFor <TestEventEventStore>();
var snapShotRepo = new Mock <ISnapShotRepository>();
snapShotRepo.Setup(re => re.LoadSnapShot <TestEntity>(It.IsAny <string>()))
.ReturnsAsync(SnapShotResult <TestEntity> .Default());
var entityId = Guid.NewGuid();
var eventStore = new EventStore(
new EventRepositoryMongoDb(EventMongoDb,
new VersionCache(EventMongoDb)),
snapShotRepo.Object, new SnapShotConfig());
await eventStore.AppendAsync(new List <IDomainEvent> {
new TestEventEventStore(entityId, "Test")
}, 0);
var loadAsync = await eventStore.LoadAsync <TestEntity>(entityId.ToString());
var loadAsync2 = await eventStore.LoadAsync <TestEntity>(entityId.ToString());
Assert.AreEqual(entityId, loadAsync.Value.Id);
Assert.AreEqual("Test", loadAsync.Value.Name);
Assert.AreEqual(entityId, loadAsync2.Value.Id);
Assert.AreEqual("Test", loadAsync2.Value.Name);
}
public async Task AddEvents_ForeachMethod()
{
BsonMapRegistrationHelpers.AddBsonMapFor <TestEventAllOk>();
var eventRepository = new EventRepositoryMongoDb(EventMongoDb, new VersionCache(EventMongoDb));
var snapShotRepo = new Mock <ISnapShotRepository>();
snapShotRepo.Setup(re => re.LoadSnapShot <TestEntity>(It.IsAny <string>()))
.ReturnsAsync(SnapShotResult <TestEntity> .Default());
var eventStore = new EventStore(eventRepository, snapShotRepo.Object, new SnapShotConfig());
var newGuid = Guid.NewGuid();
await eventStore.AppendAsync(
new List <IDomainEvent> {
new TestEventAllOk(newGuid, "Simon")
},
0);
var result = await eventRepository.LoadEvents();
Assert.AreEqual(1, result.Value.Count());
Assert.AreEqual(newGuid.ToString(), result.Value.Single().DomainEvent.EntityId);
Assert.AreEqual("Simon", ((TestEventAllOk)result.Value.Single().DomainEvent).Name);
}
/// <summary>
/// Method to read all of the snapshots in specific year.
/// </summary>
/// <param name="year">Year needed to get all snapshots pertaining to it.</param>
/// <returns>A list of SnapShotResult objects.</returns>
public async Task <List <SnapShotResult> > ReadYearlySnapshotAsync(string year)
{
using (Session session = MySQLX.GetSession(NOSQLConnection))
{
Schema schema = session.GetSchema(Constants.SnapshotSchemaName);
var collection = schema.GetCollection(Constants.SnapshotCollectionPrefix);
// Snapshots for specific year.
DocResult result = await collection.Find($"{Constants.SnapshotMonth} like :_month").Bind("_month", year + "%").ExecuteAsync().ConfigureAwait(false);
var snapshotList = new List <SnapShotResult>();
// Making a snapshot object for each result and adding it into a list.
while (result.Next())
{
var snapshot = new SnapShotResult((string)result.Current[Constants.SnapshotMonth], (string)result.Current[Constants.SnapshotOperationsDict], (string)result.Current[Constants.SnapshotUsersDict], (string)result.Current[Constants.SnapshotTopCityDict],
(string)result.Current[Constants.SnapshotTopUserUploadedDict], (string)result.Current[Constants.SnapshotTopUploadedIngredientDict], (string)result.Current[Constants.SnapshotTopUploadedStoreDict],
(string)result.Current[Constants.SnapshotTopSearchedIngredientDict], (string)result.Current[Constants.SnapshotTopSearchedStoreDict], (string)result.Current[Constants.SnapshotTopUpvotedUserDict], (string)result.Current[Constants.SnapshotTopDownvotedUserDict]);
snapshotList.Add(snapshot);
}
return(snapshotList);
}
}
/// <summary>
/// Method to read multiple snapshots.
/// There are 3 retries, after the retries fail it will notify system admin.
/// </summary>
/// <param name="year">The year to get all the snapshots.</param>
/// <returns>A snapshot object with data pertaining to the year.</returns>
public async Task <SnapShotResult> ReadMultiSnapshotAsync(int year)
{
int currentNumExceptions = 0;
var snapshot = new SnapShotResult(null, null, null, null, null, null, null, null, null, null, null);
while (currentNumExceptions < 4)
{
currentNumExceptions++;
try
{
snapshot = await _snapshotService.ReadMultiSnapshotAsync(year).ConfigureAwait(false);
}
catch (Exception e)
{
await _loggingManager.LogAsync(DateTime.UtcNow.ToString(Constants.LoggingFormatString),
Constants.ReadMultiSnapshotOperation,
Constants.SystemIdentifier,
Constants.LocalHost, e.Message).ConfigureAwait(false);
// Increment the amount of tries and then check if the 3 retries are up.
// If it is, notify system admin.
currentNumExceptions++;
if (currentNumExceptions >= Constants.MaximumOperationRetries)
{
await SystemUtilityService.NotifySystemAdminAsync($"{Constants.ReadMultiSnapshotOperation} failed a maximum number of times for {Constants.LocalHost}.", Constants.SystemAdminEmailAddress).ConfigureAwait(false);
}
}
}
return(snapshot);
}
public async Task AddEvents_AutoProperty_NotNamedEntityId()
{
BsonMapRegistrationHelpers.AddBsonMapFor <TestEvent_BsonBug_AutoProperty_NotWithEntityIdName>();
var eventRepository = new EventRepositoryMongoDb(EventMongoDb, new VersionCache(EventMongoDb));
var snapShotRepo = new Mock <ISnapShotRepository>();
snapShotRepo.Setup(re => re.LoadSnapShot <TestEntity>(It.IsAny <string>()))
.ReturnsAsync(SnapShotResult <TestEntity> .Default());
var eventStore = new EventStore(eventRepository, snapShotRepo.Object, new SnapShotConfig());
await eventStore.AppendAsync(new List <IDomainEvent> {
new TestEvent_BsonBug_AutoProperty_NotWithEntityIdName("whatever", "Peter")
},
0);
var result = await eventRepository.LoadEvents();
Assert.AreEqual(1, result.Value.Count());
var domainEvent = result.Value.Single().DomainEvent as TestEvent_BsonBug_AutoProperty_NotWithEntityIdName;
Assert.AreEqual("whatever", domainEvent.EntityId);
Assert.AreEqual("Peter", domainEvent.Name);
}
public Task <SnapShotResult <T> > LoadSnapShot <T>(string entityId) where T : new()
{
if (entityId == null)
{
return(Task.FromResult(SnapShotResult <T> .NotFound(null)));
}
if (!_snapShots.TryGetValue(entityId, out var entity))
{
return(Task.FromResult(SnapShotResult <T> .Default()));
}
var snapShotWrapper = (SnapShotWrapper <T>)entity;
return(Task.FromResult(new SnapShotResult <T>(snapShotWrapper.Entity, snapShotWrapper.Version)));
}
public async Task NotFoundExceptionIsWithCorrectT()
{
var snapShotRepo = new Mock <ISnapShotRepository>();
snapShotRepo.Setup(re => re.LoadSnapShot <TestEntity>(It.IsAny <string>()))
.ReturnsAsync(SnapShotResult <TestEntity> .Default());
var entityId = Guid.NewGuid();
var eventStore = new EventStore(new EventRepositoryMongoDb(EventMongoDb, new VersionCache(EventMongoDb)), snapShotRepo.Object, new SnapShotConfig());
var result = await eventStore.LoadAsync <TestEntity>(entityId.ToString());
var exception = Assert.ThrowsException <NotFoundException>(() => result.Value);
Assert.IsTrue(exception.Message.StartsWith("Could not find TestEntity"));
}
public async Task IntegrationWithRepo_NotFound()
{
var snapShotRepo = new Mock <ISnapShotRepository>();
snapShotRepo.Setup(re => re.LoadSnapShot <TestEntity>(It.IsAny <string>()))
.ReturnsAsync(SnapShotResult <TestEntity> .Default());
var entityId = Guid.NewGuid();
var eventStore = new EventStore(new EventRepositoryMongoDb(EventMongoDb, new VersionCache(EventMongoDb)), snapShotRepo.Object, new SnapShotConfig());
await eventStore.AppendAsync(new List <IDomainEvent> {
new TestEventEventStore(entityId, "Test")
}, 0);
var loadAsync = await eventStore.LoadAsync <TestEntity>(Guid.NewGuid().ToString());
Assert.IsTrue(loadAsync.Is <NotFound>());
}
public async Task DifferentIdsInEventsDefined()
{
var snapShotRepo = new Mock <ISnapShotRepository>();
snapShotRepo.Setup(re => re.LoadSnapShot <TestEntity>(It.IsAny <string>()))
.ReturnsAsync(SnapShotResult <TestEntity> .Default());
var entityId = Guid.NewGuid();
var entityId2 = Guid.NewGuid();
var eventStore = new EventStore(new EventRepositoryMongoDb(EventMongoDb, new VersionCache(EventMongoDb)), snapShotRepo.Object, new SnapShotConfig());
await Assert.ThrowsExceptionAsync <DifferentIdsException>(async() => await eventStore.AppendAsync(new
List <IDomainEvent> {
new
TestEventEventStore(entityId, "Test"), new
TestEventEventStore(entityId2, "Test")
}, 0));
}
public async Task <SnapShotResult <T> > LoadSnapShot <T>(string entityId) where T : new()
{
if (entityId == null)
{
return(SnapShotResult <T> .NotFound(null));
}
var mongoCollection = _context.GetCollection <SnapShotDbo <T> >(_snapShotCollectionName);
var asyncCursor = await mongoCollection.FindAsync(r => r.Id == entityId);
var snapShot = asyncCursor.ToList().FirstOrDefault();
if (snapShot == null)
{
return(SnapShotResult <T> .Default());
}
return(new SnapShotResult <T>(snapShot.Payload, snapShot.Version));
}
public async Task ApplyMethod_WrongIfDeclared()
{
var entityStremRepo = new Mock <IEventRepository>();
var snapShotRepo = new Mock <ISnapShotRepository>();
snapShotRepo.Setup(re => re.LoadSnapShot <TestEntity_NoIApply>(It.IsAny <string>()))
.ReturnsAsync(SnapShotResult <TestEntity_NoIApply> .Default());
var entityId = Guid.NewGuid();
var testEventEventStore = new TestEventEventStore(entityId);
var domainEventWrapper = new DomainEventWrapper
{
DomainEvent = testEventEventStore
};
entityStremRepo.Setup(ev => ev.LoadEventsByEntity(It.IsAny <string>(), It.IsAny <long>()))
.ReturnsAsync(Result <IEnumerable <DomainEventWrapper> > .Ok(new[] { domainEventWrapper }));
var eventStore = new EventStore(entityStremRepo.Object, snapShotRepo.Object, new SnapShotConfig());
var loadAsync = await eventStore.LoadAsync <TestEntity_NoIApply>(entityId.ToString());
Assert.AreEqual(Guid.Empty, loadAsync.Value.Id);
}
/// <summary>
/// Method to read a snapshot pertaining to a specific month.
/// </summary>
/// <param name="year">Year needed to get specific snapshot.</param>
/// <param name="month">Month needed to get specific snapshot.</param>
/// <returns>A SnapShotResult object that has all the information.</returns>
public async Task <SnapShotResult> ReadMonthlySnapshotAsync(string year, string month)
{
using (Session session = MySQLX.GetSession(NOSQLConnection))
{
Schema schema = session.GetSchema(Constants.SnapshotSchemaName);
string specificMonth = year + month;
var collection = schema.GetCollection(Constants.SnapshotCollectionPrefix);
// Snapshot for specific month.
DocResult result = await collection.Find($"{Constants.SnapshotMonth} = :_month").Bind("_month", specificMonth).ExecuteAsync().ConfigureAwait(false);
// Making a snapshot object with the result.
result.Next();
var snapshot = new SnapShotResult((string)result.Current[Constants.SnapshotMonth], (string)result.Current[Constants.SnapshotOperationsDict], (string)result.Current[Constants.SnapshotUsersDict], (string)result.Current[Constants.SnapshotTopCityDict],
(string)result.Current[Constants.SnapshotTopUserUploadedDict], (string)result.Current[Constants.SnapshotTopUploadedIngredientDict], (string)result.Current[Constants.SnapshotTopUploadedStoreDict],
(string)result.Current[Constants.SnapshotTopSearchedIngredientDict], (string)result.Current[Constants.SnapshotTopSearchedStoreDict], (string)result.Current[Constants.SnapshotTopUpvotedUserDict], (string)result.Current[Constants.SnapshotTopDownvotedUserDict]);
return(snapshot);
}
}
private void UpdateCache(SnapShotResult snapShotResult)
{
if (snapShotResult != null)
{
lock (this.m_Cache)
{
if (this.m_Cache.Count == 5)
{
int key = -2147483648;
foreach (KeyValuePair<int, SnapShotResult> pair in this.m_Cache)
{
key = pair.Key;
break;
}
this.m_Cache.Remove(key);
}
this.m_Cache.Add(snapShotResult.SnapshotId, snapShotResult);
}
}
}
