/// <summary>
/// Update the specified container
/// </summary>
/// <param name="data">The data to be updated</param>
/// <param name="principal">The principal for authorization</param>
/// <param name="mode">The mode of operation</param>
/// <returns>The updated model</returns>
public TModel Update(TModel data, TransactionMode mode, IPrincipal principal)
{
if (data == null)
{
throw new ArgumentNullException(nameof(data));
}
else if (data.Key == Guid.Empty)
{
throw new InvalidOperationException("Data missing key");
}
DataPersistingEventArgs <TModel> preArgs = new DataPersistingEventArgs <TModel>(data, mode, principal);
this.Updating?.Invoke(this, preArgs);
if (preArgs.Cancel)
{
this.m_tracer.TraceWarning("Pre-Event handler indicates abort update for {0}", data);
return(data);
}
// Persist object
using (var connection = AdoAuditPersistenceService.GetConfiguration().Provider.GetWriteConnection())
{
connection.Open();
using (IDbTransaction tx = connection.BeginTransaction())
try
{
//connection.Connection.Open();
connection.EstablishProvenance(principal, (data as NonVersionedEntityData)?.UpdatedByKey ?? (data as BaseEntityData)?.CreatedByKey);
this.m_tracer.TraceVerbose("UPDATE {0}", data);
data = this.UpdateInternal(connection, data, principal);
connection.AddCacheCommit(data);
data.LoadState = LoadState.FullLoad; // We just persisted this so it is fully loaded
if (mode == TransactionMode.Commit)
{
tx.Commit();
foreach (var itm in connection.CacheOnCommit)
{
ApplicationServiceContext.Current.GetService <IDataCachingService>()?.Add(itm);
}
}
else
{
tx.Rollback();
}
var args = new DataPersistedEventArgs <TModel>(data, mode, principal);
this.Updated?.Invoke(this, args);
return(data);
}
catch (DbException e)
{
#if DEBUG
this.m_tracer.TraceError("Error : {0} -- {1}", e, this.ObjectToString(data));
#else
this.m_tracer.TraceError("Error : {0}", e.Message);
#endif
tx?.Rollback();
this.TranslateDbException(e);
throw;
}
catch (Exception e)
{
#if DEBUG
this.m_tracer.TraceError("Error : {0} -- {1}", e, this.ObjectToString(data));
#else
this.m_tracer.TraceError("Error : {0}", e.Message);
#endif
tx?.Rollback();
// if the exception is key not found, we want the caller to know
// so that a potential insert can take place
if (e is KeyNotFoundException)
{
throw new KeyNotFoundException(e.Message, e);
}
// if the exception is anything else, we want to throw a data persistence exception
throw new DataPersistenceException(e.Message, e);
}
finally
{
}
}
}
/// <summary>
/// Performs query logic
/// </summary>
/// <param name="query">The query</param>
/// <param name="queryId">The query identifier</param>
/// <param name="offset">The offset of the query</param>
/// <param name="count">The total count to return</param>
/// <param name="authContext">The authentication context</param>
/// <param name="totalCount">The total results matching</param>
/// <param name="fastQuery">True if fast querying should be performed</param>
/// <returns>The matching results</returns>
protected virtual IEnumerable <TModel> QueryInvoke(Expression <Func <TModel, bool> > query, Guid queryId, int offset, int?count, IPrincipal authContext, out int totalCount, bool fastQuery, ModelSort <TModel>[] orderBy)
{
if (query == null)
{
throw new ArgumentNullException(nameof(query));
}
#if DEBUG
Stopwatch sw = new Stopwatch();
sw.Start();
#endif
QueryRequestEventArgs <TModel> preArgs = new QueryRequestEventArgs <TModel>(query, offset, count, queryId, authContext, orderBy);
this.Querying?.Invoke(this, preArgs);
if (preArgs.Cancel)
{
this.m_tracer.TraceWarning("Pre-Event handler indicates abort query {0}", query);
totalCount = preArgs.TotalResults;
return(preArgs.Results);
}
// Query object
using (var connection = AdoAuditPersistenceService.GetConfiguration().Provider.GetReadonlyConnection())
try
{
connection.Open();
this.m_tracer.TraceVerbose("QUERY {0}", query);
// Is there an obsoletion item already specified?
if (fastQuery)
{
connection.AddData("loadFast", true);
connection.LoadState = LoadState.PartialLoad;
}
else
{
connection.LoadState = LoadState.FullLoad;
}
var results = this.QueryInternal(connection, query, queryId, offset, count ?? 1000, out totalCount, authContext, true, orderBy);
var postData = new QueryResultEventArgs <TModel>(query, results.AsQueryable(), offset, count, totalCount, queryId, authContext);
this.Queried?.Invoke(this, postData);
var retVal = postData.Results.ToList();
// Add to cache
foreach (var i in retVal.AsParallel().Where(i => i != null))
{
connection.AddCacheCommit(i);
}
ApplicationServiceContext.Current.GetService <IThreadPoolService>()?.QueueUserWorkItem(o =>
{
foreach (var itm in (o as IEnumerable <IdentifiedData>))
{
ApplicationServiceContext.Current.GetService <IDataCachingService>()?.Add(itm);
}
}, connection.CacheOnCommit.ToList());
this.m_tracer.TraceVerbose("Returning {0}..{1} or {2} results", offset, offset + (count ?? 1000), totalCount);
return(retVal);
}
catch (NotSupportedException e)
{
throw new DataPersistenceException("Cannot perform LINQ query", e);
}
catch (Exception e)
{
this.m_tracer.TraceError("Error : {0}", e);
throw;
}
finally
{
#if DEBUG
sw.Stop();
this.m_tracer.TraceVerbose("Query {0} took {1} ms", query, sw.ElapsedMilliseconds);
#endif
}
}
/// <summary>
/// Insert the specified storage data
/// </summary>
/// <param name="data">The storage data to be inserted</param>
/// <param name="principal">The authentication context</param>
/// <param name="mode">The transaction control mode</param>
/// <returns>The inserted data</returns>
public TModel Insert(TModel data, TransactionMode mode, IPrincipal principal)
{
if (data == null)
{
throw new ArgumentNullException(nameof(data));
}
DataPersistingEventArgs <TModel> preArgs = new DataPersistingEventArgs <TModel>(data, mode, principal);
this.Inserting?.Invoke(this, preArgs);
if (preArgs.Cancel)
{
this.m_tracer.TraceWarning("Pre-Event handler indicates abort insert for {0}", data);
return(data);
}
// Persist object
using (var connection = AdoAuditPersistenceService.GetConfiguration().Provider.GetWriteConnection())
{
connection.Open();
using (IDbTransaction tx = connection.BeginTransaction())
try
{
connection.EstablishProvenance(principal, (data as NonVersionedEntityData)?.CreatedByKey ?? (data as BaseEntityData)?.CreatedByKey);
// Disable inserting duplicate classified objects
var existing = data.TryGetExisting(connection, principal, true);
if (existing != null)
{
throw new DuplicateNameException(data.Key?.ToString());
}
else
{
this.m_tracer.TraceVerbose("INSERT {0}", data);
data = this.InsertInternal(connection, data, principal);
connection.AddCacheCommit(data);
}
data.LoadState = LoadState.FullLoad; // We just persisted so it is fully loaded
if (mode == TransactionMode.Commit)
{
tx.Commit();
foreach (var itm in connection.CacheOnCommit)
{
ApplicationServiceContext.Current.GetService <IDataCachingService>()?.Add(itm);
}
}
else
{
tx.Rollback();
}
var args = new DataPersistedEventArgs <TModel>(data, mode, principal);
this.Inserted?.Invoke(this, args);
return(data);
}
catch (DbException e)
{
#if DEBUG
this.m_tracer.TraceError("Error : {0} -- {1}", e, this.ObjectToString(data));
#else
this.m_tracer.TraceError("Error : {0}", e.Message);
#endif
tx?.Rollback();
this.TranslateDbException(e);
throw;
}
catch (Exception e)
{
this.m_tracer.TraceError("Error : {0} -- {1}", e, this.ObjectToString(data));
tx?.Rollback();
throw new DataPersistenceException(e.Message, e);
}
}
}
/// <summary>
/// Obsolete the specified key data
/// </summary>
/// <param name="storageData">The storage data to be obsoleted</param>
/// <param name="principal">The principal to use to obsolete</param>
/// <param name="mode">The mode of obsoletion</param>
/// <returns>The obsoleted record</returns>
public TModel Obsolete(TModel data, TransactionMode mode, IPrincipal principal)
{
if (data == null)
{
throw new ArgumentNullException(nameof(data));
}
else if (data.Key == Guid.Empty)
{
throw new InvalidOperationException("Data missing key");
}
DataPersistingEventArgs <TModel> preArgs = new DataPersistingEventArgs <TModel>(data, mode, principal);
this.Obsoleting?.Invoke(this, preArgs);
if (preArgs.Cancel)
{
this.m_tracer.TraceWarning("Pre-Event handler indicates abort for {0}", data);
return(data);
}
// Obsolete object
using (var connection = AdoAuditPersistenceService.GetConfiguration().Provider.GetWriteConnection())
{
connection.Open();
using (IDbTransaction tx = connection.BeginTransaction())
try
{
//connection.Connection.Open();
this.m_tracer.TraceVerbose("OBSOLETE {0}", data);
connection.EstablishProvenance(principal, (data as NonVersionedEntityData)?.ObsoletedByKey ?? (data as BaseEntityData)?.ObsoletedByKey);
data = this.ObsoleteInternal(connection, data, principal);
connection.AddCacheCommit(data);
if (mode == TransactionMode.Commit)
{
tx.Commit();
foreach (var itm in connection.CacheOnCommit)
{
ApplicationServiceContext.Current.GetService <IDataCachingService>()?.Remove(itm.Key.Value);
}
}
else
{
tx.Rollback();
}
var args = new DataPersistedEventArgs <TModel>(data, mode, principal);
this.Obsoleted?.Invoke(this, args);
return(data);
}
catch (Exception e)
{
this.m_tracer.TraceError("Error : {0}", e);
tx?.Rollback();
throw new DataPersistenceException(e.Message, e);
}
finally
{
}
}
}
/// <summary>
/// Get the specified resource
/// </summary>
/// <typeparam name="TIdentifier">The type of identifier</typeparam>
/// <param name="containerId">The id of the identifier to get</param>
/// <param name="principal">The security principal to execute as</param>
/// <param name="loadFast">True if to skip loading of some properties</param>
/// <returns>The loaded model</returns>
public TModel Get(Guid containerId, Guid?containerVersion, bool loadFast, IPrincipal principal)
{
// Try the cache if available
var guidIdentifier = containerId;
var cacheItem = ApplicationServiceContext.Current.GetService <IDataCachingService>()?.GetCacheItem <TModel>(guidIdentifier) as TModel;
if (loadFast && cacheItem != null)
{
return(cacheItem);
}
else
{
#if DEBUG
Stopwatch sw = new Stopwatch();
sw.Start();
#endif
DataRetrievingEventArgs <TModel> preArgs = new DataRetrievingEventArgs <TModel>(containerId, containerVersion, principal);
this.Retrieving?.Invoke(this, preArgs);
if (preArgs.Cancel)
{
this.m_tracer.TraceWarning("Pre-Event handler indicates abort retrieve {0}", containerId);
return(null);
}
// Query object
using (var connection = AdoAuditPersistenceService.GetConfiguration().Provider.GetReadonlyConnection())
try
{
connection.Open();
this.m_tracer.TraceVerbose("GET {0}", containerId);
if (loadFast)
{
connection.AddData("loadFast", true);
connection.LoadState = LoadState.PartialLoad;
}
else
{
connection.LoadState = LoadState.FullLoad;
}
var result = this.GetInternal(connection, guidIdentifier, principal);
var postData = new DataRetrievedEventArgs <TModel>(result, principal);
this.Retrieved?.Invoke(this, postData);
foreach (var itm in connection.CacheOnCommit)
{
ApplicationServiceContext.Current.GetService <IDataCachingService>()?.Add(itm);
}
return(result);
}
catch (NotSupportedException e)
{
throw new DataPersistenceException("Cannot perform LINQ query", e);
}
catch (Exception e)
{
this.m_tracer.TraceError("Error : {0}", e);
throw;
}
finally
{
#if DEBUG
sw.Stop();
this.m_tracer.TraceVerbose("Retrieve took {0} ms", sw.ElapsedMilliseconds);
#endif
}
}
}
