public async Task <GuidDTO> Handle(CreateGUIDCommand request, CancellationToken cancellationToken)
{
//create rich domain object
var entity = new GuidMetadata(request.Id, request.Expire, request.User);
//add to database and save
try
{
_context.Add(entity);
await _context.SaveChangesAsync(cancellationToken);
}
catch (System.Exception ex)
{
throw ex;
}
//create cache
try
{
var cacheKey = entity.Id;
var cacheMetadata = entity.Expire + "|" + entity.User;
await _cache.SetStringAsync(cacheKey, cacheMetadata, cancellationToken);
}
catch (System.Exception ex)
{
throw ex;
}
//map to dto and return
return(GuidDTO.Create(entity));
}
public void GuidWithHyphensIsValid()
{
string myGuid = "12345678-90ab-cdef-1234-567890abcdef";
long myExpire = 123;
string myName = "John Doe";
GuidMetadata metadata = new GuidMetadata(myGuid, myExpire, myName);
Assert.AreEqual(metadata.Id.ToString(), new Guid(metadata.Id).ToString("N").ToUpper());
}
public void LowerCaseGuidIsValid()
{
string myGuid = "1234567890abcdef1234567890abcdef";
long myExpire = 123;
string myName = "John Doe";
GuidMetadata metadata = new GuidMetadata(myGuid, myExpire, myName);
Assert.AreEqual(metadata.Id.ToString(), metadata.Id.ToString().ToUpper());
}
public void GuidIsNullCreatesRandomGuid()
{
string myGuid = null;
long myExpire = 123;
string myName = "John Doe";
GuidMetadata metadata = new GuidMetadata(myGuid, myExpire, myName);
Assert.IsNotNull(Guid.Parse(metadata.Id.ToString()));
}
public void ExpirationTimeProvidedIsApplied()
{
string myGuid = null;
long? myExpire = 1547078400;
string myName = "John Doe";
DateTime unixStartTime = new DateTime(1970, 1, 1, 0, 0, 0);
DateTime myDateTime = new DateTime(2019, 1, 1, 0, 0, 0);
GuidMetadata metadata = new GuidMetadata(myGuid, myExpire, myName);
Assert.AreEqual(unixStartTime.AddSeconds((double)metadata.Expire), new DateTime(2019, 1, 10, 0, 0, 0));
}
public void Simple()
{
if (Directory.Exists(Path))
{
Directory.Delete(Path, true);
}
var first = new GuidKeyTestEntity {
Data = "First"
};
var second = new GuidKeyTestEntity {
Data = "Second"
};
var db = new GuidKeyTestDb();
using (db.BeginLock())
{
db.GuidKeyTestDataset.Save(first);
db.GuidKeyTestDataset.Save(second);
}
db = new GuidKeyTestDb(); // renew db
var ids = db.GuidKeyTestDataset.Select(x => x.Id).ToArray();
Assert.AreEqual(2, ids.Length);
Assert.AreNotEqual(first, db.GuidKeyTestDataset.First(x => x.Data == "First"));
Assert.AreEqual(first.Id, db.GuidKeyTestDataset.First(x => x.Data == "First").Id);
Assert.IsTrue(!String.IsNullOrWhiteSpace(first.Id) && first.Id != GuidMetadata.GetDefaultId() && first.Id != second.Id);
Trace.TraceInformation("Default key: {0}", GuidMetadata.GetDefaultId());
Trace.TraceInformation("Generated keys:");
Trace.Indent();
foreach (var id in ids)
{
Trace.TraceInformation(id);
}
Trace.Unindent();
}
public async Task <GuidDTO> Handle(UpdateGUIDCommand request, CancellationToken cancellationToken)
{
//create rich domain object, bypass null or empty name validation
var entity = new GuidMetadata(request.Id, request.Expire, request.User ?? "N/A", request.IsDeleted);
//modify database and save changes
if (request.Expire != null)
{
_context.Entry(entity).Property("Expire").IsModified = true;
}
if (request.User != null)
{
_context.Entry(entity).Property("User").IsModified = true;
}
if (request.IsDeleted != null)
{
_context.Entry(entity).Property("IsDeleted").IsModified = true;
}
await _context.SaveChangesAsync(cancellationToken);
//get existing cache
var cacheKey = request.Id;
var cache = _distributedCache.GetString(cacheKey);
//update existing cache
string cacheMetadata;
if (cache != null)
{
var data = cache.Split("|");
var expire = data[0].ToString();
var user = data[1].ToString();
cacheMetadata = string.Concat(entity.Expire != null ? entity.Expire.ToString() : expire, "|"
, entity.User != null ? entity.User : user);
await _distributedCache.SetStringAsync(cacheKey, cacheMetadata, cancellationToken);
}
//map to dto and return
return(GuidDTO.Create(entity));
}
public async Task <GuidDTO> Handle(GetGUIDQuery request, CancellationToken cancellationToken)
{
GuidMetadata entity;
var cacheKey = request.Id;
var cacheMetadata = _distributedCache.GetString(cacheKey);
if (!string.IsNullOrEmpty(cacheMetadata))
{
//parse metadata and create rich domain object
string[] metadata = cacheMetadata.Split('|');
entity = new GuidMetadata(request.Id, Convert.ToInt64(metadata[0]), metadata[1]);
}
else
{
//get entity from database
try
{
entity = await _context.GUIDs.SingleAsync(c => c.Id == request.Id, cancellationToken);
}
catch (Exception ex)
{
throw ex;
}
//update cache
cacheMetadata = entity.Expire + "|" + entity.User;
_distributedCache.SetString(cacheKey, cacheMetadata);
}
//check expired
DateTime dateTime = DateTime.UtcNow;
DateTimeOffset dateTimeOffset = new DateTimeOffset(dateTime.ToLocalTime());
if (dateTimeOffset.ToUnixTimeSeconds() > entity.Expire)
{
throw new ExpiredException();
}
return(GuidDTO.Create(entity));
}
public static GuidDTO Create(GuidMetadata metadata)
{
return(Projection.Compile().Invoke(metadata));
}
