private void RegisterGenericRepositories()
{
var dbContextTypes =
_typeFinder.Find(type =>
type.IsPublic &&
!type.IsAbstract &&
type.IsClass &&
typeof(AbpDbContext).IsAssignableFrom(type)
);
if (dbContextTypes.IsNullOrEmpty())
{
return;
}
foreach (var item in dbContextTypes)
{
EntityFrameworkGenericBatchRepositoryRegistrar.RegisterForDbContext(item, IocManager);
//var type = typeof(IAbpBatchRunner<>).MakeGenericType(item);
//var implType = typeof(AbpSqlServerBatchRunner<>).MakeGenericType(item);
//IocManager.RegisterIfNot(type, implType, DependencyLifeStyle.Transient);
}
}
private void RegisterGenericRepositoriesAndMatchDbContexes()
{
var dbContextTypes =
_typeFinder.Find(type =>
type.IsPublic &&
!type.IsAbstract &&
type.IsClass &&
typeof(CodeZeroDbContext).IsAssignableFrom(type)
);
if (dbContextTypes.IsNullOrEmpty())
{
Logger.Warn("No class found derived from CodeZeroDbContext.");
return;
}
using (var scope = IocManager.CreateScope())
{
var repositoryRegistrar = scope.Resolve <IEfGenericRepositoryRegistrar>();
foreach (var dbContextType in dbContextTypes)
{
Logger.Debug("Registering DbContext: " + dbContextType.AssemblyQualifiedName);
repositoryRegistrar.RegisterForDbContext(dbContextType, IocManager, EfAutoRepositoryTypes.Default);
IocManager.IocContainer.Register(
Component.For <ISecondaryOrmRegistrar>()
.Named(Guid.NewGuid().ToString("N"))
.Instance(new EfBasedSecondaryOrmRegistrar(dbContextType, scope.Resolve <IDbContextEntityFinder>()))
.LifestyleTransient()
);
}
scope.Resolve <IDbContextTypeMatcher>().Populate(dbContextTypes);
}
}
public virtual EntityChange CreateEntityChange(object entity)
{
if (!IsEntityHistoryEnabled)
{
return(null);
}
if (IsChangesEntity(entity))
{
return(null);
}
var typeOfEntity = entity.GetType();
if (typeOfEntity.HasInterface(typeof(INHibernateProxy)) ||
typeOfEntity.HasInterface(typeof(IFieldInterceptorAccessor)))
{
if (typeOfEntity.BaseType == null)
{
throw new Exception($"Base type of proxy `{typeOfEntity.Name}`, object `{entity}`");
}
// unproxy
typeOfEntity = typeOfEntity.BaseType;
}
if (!IsTypeOfEntity(typeOfEntity))
{
return(null);
}
var isTracked = IsTypeOfTrackedEntity(typeOfEntity);
if (isTracked != null && !isTracked.Value)
{
return(null);
}
var isAudited = IsTypeOfAuditedEntity(typeOfEntity);
if (isAudited != null && !isAudited.Value)
{
return(null);
}
if (isAudited == null && isTracked == null)
{
if (!typeOfEntity.GetProperties()
.Any(p =>
(IsAuditedPropertyInfo(p) ?? false) ||
(IsAditedBooleanPropertyInfo(p) ?? false) ||
(IsAditedAsEventPropertyInfo(p) ?? false)))
{
return(null);
}
}
var entityTypeFullName = typeOfEntity.FullName;
EntityEntry entityEntry;
if ((entityEntry = Session?.GetEntry(entity, false)) == null)
{
return(null);
}
var id = entityEntry.Id;
EntityChangeType changeType;
if (Session.IsEntityDeleted(entity))
{
changeType = EntityChangeType.Deleted;
}
else if (entityEntry.LoadedState == null)
{
changeType = EntityChangeType.Created;
}
else
{
changeType = EntityChangeType.Updated;
}
var className = NHibernateProxyHelper.GuessClass(entity).FullName;
var sessionImpl = Session.GetSessionImplementation();
var persister = sessionImpl.Factory.GetEntityPersister(className);
Object[] currentState = persister.GetPropertyValues(entity);
Int32[] dirtyP = changeType != EntityChangeType.Created && entityEntry.LoadedState != null
? persister.FindDirty(currentState, entityEntry.LoadedState, entity, sessionImpl) // changed properties
: Enumerable.Range(0, currentState.Length - 1).ToArray(); // all properties for new entity
var ioc = StaticContext.IocManager;
var creatorTypes = _typeFinder.Find(t => typeof(IEntityHistoryCreator).IsAssignableFrom(t) && t.IsClass).ToList();
foreach (var creatorType in creatorTypes)
{
if (ioc.Resolve(creatorType) is IEntityHistoryCreator creator && creator.TypeAllowed(entity.GetType()))
{
return(creator.GetEntityChange(entity, AbpSession, persister.PropertyNames, entityEntry.LoadedState, currentState, dirtyP));
}
}
var dirtyProps = dirtyP.Select(i => new SessionExtensions.DirtyPropertyInfo
{
Name = persister.PropertyNames[i], OldValue = entityEntry.LoadedState?[i], NewValue = currentState[i]
})
.ToList();
var entityChange = new EntityChange
{
ChangeType = changeType,
ChangeTime = Clock.Now,
EntityEntry = entity, // [NotMapped]
EntityId = id?.ToString(),
EntityTypeFullName = entityTypeFullName,
TenantId = AbpSession.TenantId,
};
var propertyChanges = new List <EntityPropertyChange>();
if (changeType != EntityChangeType.Created)
{
propertyChanges.AddRange(GetPropertyChanges((isAudited ?? false) || (isTracked ?? false), entityChange,
typeOfEntity, entity, dirtyProps));
if (propertyChanges.Count == 0 && //changeType != EntityChangeType.Created &&
EntityHistoryEvents.All(x => x.EntityChange != entityChange))
{
return(null);
}
}
entityChange.PropertyChanges = propertyChanges;
return(entityChange);
}
public ICollection <Type> FindAll()
{
return(_typeFinder.Find(AbpModule.IsAbpModule).ToList());
}
private bool HasImpl(Type interfaceType)
{
return(_typeFinder.Find(t => interfaceType.IsAssignableFrom(t) && !t.IsInterface && !t.IsAbstract).Any());
}
/// <summary>
/// 获取类型集合
/// </summary>
/// <typeparam name="T">对象类型</typeparam>
/// <returns></returns>
private Type[] GetTypes <T>()
{
return(_finder.Find <T>(_assemblies).ToArray());
}
private static IList<ControlsAttribute> FindControllers(ITypeFinder typeFinder)
{
var controllerLookup = new Dictionary<Type, ControlsAttribute>();
foreach (Type controllerType in typeFinder.Find(typeof(IController)))
{
foreach (ControlsAttribute attr in controllerType.GetCustomAttributes(typeof(ControlsAttribute), false))
{
if (controllerLookup.ContainsKey(attr.ItemType))
throw new N2Exception("Duplicate controller " + controllerType.Name + " declared for item type " +
attr.ItemType.Name +
" The controller " + controllerLookup[attr.ItemType].AdapterType.Name +
" already handles this type and two controllers cannot handle the same item type.");
attr.AdapterType = controllerType;
controllerLookup.Add(attr.ItemType, attr);
}
}
var controllerDefinitions = new List<ControlsAttribute>(controllerLookup.Values);
controllerDefinitions.Sort();
return controllerDefinitions;
}
private static IList<ControlsAttribute> FindControllers(ITypeFinder typeFinder)
{
var controllerDefinitions = new List<ControlsAttribute>();
foreach (Type controllerType in typeFinder.Find(typeof(IController)))
{
foreach (ControlsAttribute attr in controllerType.GetCustomAttributes(typeof(ControlsAttribute), false))
{
attr.AdapterType = controllerType;
controllerDefinitions.Add(attr);
}
}
controllerDefinitions.Sort();
return controllerDefinitions;
}
public void PushNewPage(string xaml)
{
var tcs = new TaskCompletionSource <bool>();
Device.BeginInvokeOnMainThread(async() =>
{
try
{
Page page;
var discovery = new XamlDocumentDiscovery(xaml);
var xClassName = discovery.GetPageClassName();
if (string.IsNullOrWhiteSpace(xClassName))
{
page = new ContentPage();
var loaded = _xamlLoader.Load(page, xaml, ShowError);
if (loaded == null)
{
return;
}
}
else
{
var type = _typeFinder.Find(xClassName);
if (type == null)
{
ShowError($"The type {xClassName} was not found. Try loading the project assemblies, first.");
return;
}
try
{
page = Activator.CreateInstance(type) as Page;
}
catch (Exception e)
{
ShowError(e);
return;
}
}
await Navigation.PopAsync(false);
await Navigation.PushAsync(page, false);
App.CurrentDesignSurface = page;
SetPageId(page);
DesignerAppEvents.SetupDesignSurface(page);
}
catch (Exception)
{
ShowError();
}
finally
{
tcs.SetResult(true);
}
});
tcs.Task.Wait();
}
private async Task DoProcess()
{
var jobs = _typeFinder
.Find(type => type != null && type.IsPublic && type.HasAttribute <ScheduledJobAttribute>())
.Select(e => new
{
Class = e,
Attribute = e.GetAttribute <ScheduledJobAttribute>()
})
.ToList();
// deactivate all jobs which are missing in the code
var dbItems = await _jobRepo.GetAll().ToListAsync();
var toDelete = dbItems.Where(i => !jobs.Any(j => j.Attribute.Uid == i.Id)).ToList();
foreach (var scheduledJob in toDelete)
{
await _jobRepo.DeleteAsync(scheduledJob);
}
if (!jobs.Any())
{
return;
}
foreach (var jobInfo in jobs)
{
try
{
using (_unitOfWorkManager.Current.DisableFilter(AbpDataFilters.SoftDelete))
{
var existingJob = await _jobRepo.GetAll().FirstOrDefaultAsync(j => j.Id == jobInfo.Attribute.Uid);
// job already exists - activate if inactive it and continue processing
// note: the user can't create/delete jobs manually, so we assume that the job was inactivated by this bootstrapper
if (existingJob != null)
{
if (existingJob.IsDeleted)
{
existingJob.IsDeleted = false;
existingJob.DeletionTime = null;
existingJob.DeleterUserId = null;
await _jobRepo.UpdateAsync(existingJob);
}
continue;
}
}
// create job and default trigger only if the job is missing in the DB
var job = new ScheduledJob()
{
Id = jobInfo.Attribute.Uid,
JobName = jobInfo.Class.Name,
JobNamespace = jobInfo.Class.Namespace,
StartupMode = jobInfo.Attribute.StartupMode,
JobStatus = JobStatus.Active,
JobDescription = jobInfo.Attribute.Description
};
await _jobRepo.InsertAsync(job);
// create a trigger
if (jobInfo.Attribute.StartupMode == StartUpMode.Automatic &&
CronStringHelper.IsValidCronExpression(jobInfo.Attribute.CronString ?? string.Empty))
{
var trigger = new ScheduledJobTrigger()
{
Job = job,
Description = "Default trigger (created automatically)",
CronString = jobInfo.Attribute.CronString
};
await _triggerRepo.InsertAsync(trigger);
}
await _unitOfWorkManager.Current.SaveChangesAsync();
}
catch (Exception e)
{
throw new Exception($"An error occured during bootstrapping of the scheduled job {jobInfo.Attribute.Uid}", e);
}
}
// sync to Hangfire
await _jobManager.EnqueueAllAsync();
}
public ICollection <Type> FindAll()
{
return(typeFinder.Find(NsModule.IsNsModule).ToList());
}
/// <summary>
/// Seed database (applies migrations, runs bootstrappers/seeders)
/// </summary>
private void SeedDatabase()
{
var ioc = StaticContext.IocManager;
var lockFactory = ioc.Resolve <ILockFactory>();
var cacheManager = ioc.Resolve <ICacheManager>();
// Note: the application may work in the multiple instance environment (e.g. on Azure)
// We are trying to acquire a lock and initialize the application, possible cases:
// 1. lock successfully acquired - initialize the application
// 2. initialization is locked by another process - wait for completion and check the result of initialization. If the initialization failed - we can't continue the process and just throw exception
Logger.Warn("Try to initialize database...");
var expiry = TimeSpan.FromSeconds(30);
var wait = TimeSpan.FromSeconds(10);
var retry = TimeSpan.FromSeconds(1);
const string seedDbKey = "AppStart:SeedDb";
const string seedDbFinishedOnKey = "SeedDbFinishedOn";
var cache = CacheManagerExtensions.GetCache <string, DateTime>(cacheManager, seedDbKey);
var initializationStart = DateTime.Now.ToUniversalTime();
var initializedByCurrentInstance = false;
lockFactory.DoExclusive(seedDbKey, expiry, wait, retry, () =>
{
// get last initialization time
var seedDbTime = cache.Get(seedDbFinishedOnKey, key => DateTime.MinValue);
if (seedDbTime != DateTime.MinValue && (
seedDbTime.Ticks > initializationStart.Ticks || /* DB was initialized while we were waiting for the lock */
(initializationStart - seedDbTime).TotalSeconds <= 30 /* DB was initialized less than 30 seconds ago */
))
{
Logger.Warn("Database initialized by another application instance");
return;
}
initializedByCurrentInstance = true;
Logger.Warn("Database initialization started");
Logger.Warn("Apply migrations...");
var dbMigrator = ioc.Resolve <IAbpZeroDbMigrator>();
dbMigrator?.CreateOrMigrateForHost();
Logger.Warn("Apply migrations - finished");
// find all seeders/bootstrappers and run them
var bootstrapperTypes = _typeFinder.Find(t => typeof(IBootstrapper).IsAssignableFrom(t) && t.IsClass).ToList();
bootstrapperTypes = SortByDependencies(bootstrapperTypes);
foreach (var bootstrapperType in bootstrapperTypes)
{
AsyncHelper.RunSync(async() =>
{
if (ioc.Resolve(bootstrapperType) is IBootstrapper bootstrapper)
{
Logger.Warn($"Run bootstrapper: {bootstrapperType.Name}...");
var uowManager = ioc.Resolve <IUnitOfWorkManager>();
using (var unitOfWork = uowManager.Begin())
{
await bootstrapper.Process();
await unitOfWork.CompleteAsync();
}
Logger.Warn($"Run bootstrapper: {bootstrapperType.Name} - finished");
}
});
}
// update the DB seeding time
cache.Set(seedDbFinishedOnKey, initializationStart, TimeSpan.FromMinutes(10));
});
Logger.Warn(initializedByCurrentInstance
? "Database initialization finished" :
"Database initialization skipped (locked by another instance)");
//SeedHelper.SeedHostDb(IocManager);
}
