/// <summary>
/// Perform the query
/// </summary>
protected virtual IEnumerable <Object> DoQueryInternal(DataContext context, Expression <Func <TModel, bool> > primaryQuery, Guid queryId, int offset, int?count, out int totalResults, ModelSort <TModel>[] orderBy, bool includeCount = true, bool overrideFuzzyTotalSetting = false)
{
#if DEBUG
Stopwatch sw = new Stopwatch();
sw.Start();
#endif
OrmResultSet <TQueryReturn> retVal = null;
Expression <Func <TModel, bool> >[] queries = new Expression <Func <TModel, bool> >[] { primaryQuery };
// Are we intersecting?
if (context.Data.TryGetValue("UNION", out object others) &&
others is Expression <Func <TModel, bool> >[])
{
context.Data.Remove("UNION");
queries = queries.Concat((Expression <Func <TModel, bool> >[])others).ToArray();
}
try
{
// Fetch queries
foreach (var q in queries)
{
var query = q;
SqlStatement domainQuery = null;
// Query has been registered?
if (queryId != Guid.Empty && this.m_queryPersistence?.IsRegistered(queryId) == true)
{
return(this.GetStoredQueryResults(queryId, offset, count, out totalResults));
}
// Is obsoletion time already specified? If so and the entity is an iversioned entity we don't want obsolete data coming back
var queryString = query.ToString();
if (!queryString.Contains("ObsoletionTime") && typeof(IVersionedEntity).IsAssignableFrom(typeof(TModel)) && !queryString.Contains("VersionKey"))
{
var obsoletionReference = Expression.MakeBinary(ExpressionType.Equal, Expression.MakeMemberAccess(query.Parameters[0], typeof(TModel).GetProperty(nameof(BaseEntityData.ObsoletionTime))), Expression.Constant(null));
//var obsoletionReference = Expression.MakeUnary(ExpressionType.Not, Expression.MakeMemberAccess(Expression.MakeMemberAccess(query.Parameters[0], typeof(TModel).GetProperty(nameof(BaseEntityData.ObsoletionTime))), typeof(Nullable<DateTimeOffset>).GetProperty("HasValue")), typeof(bool));
query = Expression.Lambda <Func <TModel, bool> >(Expression.MakeBinary(ExpressionType.AndAlso, obsoletionReference, query.Body), query.Parameters);
}
else if (!queryString.Contains("ObsoleteVersionSequenceId") && typeof(IVersionedAssociation).IsAssignableFrom(typeof(TModel)))
{
var obsoletionReference = Expression.MakeBinary(ExpressionType.Equal, Expression.MakeMemberAccess(query.Parameters[0], typeof(TModel).GetProperty(nameof(IVersionedAssociation.ObsoleteVersionSequenceId))), Expression.Constant(null));
//var obsoletionReference = Expression.MakeUnary(ExpressionType.Not, Expression.MakeMemberAccess(Expression.MakeMemberAccess(query.Parameters[0], typeof(TModel).GetProperty(nameof(IVersionedAssociation.ObsoleteVersionSequenceId))), typeof(Nullable<decimal>).GetProperty("HasValue")), typeof(bool));
query = Expression.Lambda <Func <TModel, bool> >(Expression.MakeBinary(ExpressionType.AndAlso, obsoletionReference, query.Body), query.Parameters);
}
// Domain query
Type[] selectTypes = { typeof(TQueryReturn) };
if (selectTypes[0].IsConstructedGenericType)
{
selectTypes = selectTypes[0].GenericTypeArguments;
}
domainQuery = context.CreateSqlStatement <TDomain>().SelectFrom(selectTypes);
var expression = m_mapper.MapModelExpression <TModel, TDomain, bool>(query, false);
if (expression != null)
{
Type lastJoined = typeof(TDomain);
if (typeof(CompositeResult).IsAssignableFrom(typeof(TQueryReturn)))
{
foreach (var p in typeof(TQueryReturn).GenericTypeArguments.Select(o => this.m_persistenceService.GetMapper().MapModelType(o)))
{
if (p != typeof(TDomain))
{
// Find the FK to join
domainQuery.InnerJoin(lastJoined, p);
lastJoined = p;
}
}
}
domainQuery.Where <TDomain>(expression);
}
else
{
m_tracer.TraceEvent(EventLevel.Verbose, "Will use slow query construction due to complex mapped fields");
domainQuery = this.m_persistenceService.GetQueryBuilder().CreateQuery(query, orderBy);
}
if (retVal == null)
{
retVal = this.DomainQueryInternal <TQueryReturn>(context, domainQuery);
}
else
{
retVal = retVal.Union(this.DomainQueryInternal <TQueryReturn>(context, domainQuery));
}
}
this.AppendOrderBy(retVal.Statement, orderBy);
// Count = 0 means we're not actually fetching anything so just hit the db
if (count != 0)
{
// Stateful query identifier = We need to add query results
if (queryId != Guid.Empty && ApplicationContext.Current.GetService <IQueryPersistenceService>() != null)
{
// Create on a separate thread the query results
var keys = retVal.Keys <Guid>().ToArray();
totalResults = keys.Length;
this.m_queryPersistence?.RegisterQuerySet(queryId, keys, queries, totalResults);
}
else if (count.HasValue && includeCount && !m_configuration.UseFuzzyTotals) // Get an exact total
{
totalResults = retVal.Count();
}
else
{
totalResults = 0;
}
// Fuzzy totals - This will only fetch COUNT + 1 as the total results
if (count.HasValue)
{
if ((overrideFuzzyTotalSetting || m_configuration.UseFuzzyTotals) && totalResults == 0)
{
var fuzzResults = retVal.Skip(offset).Take(count.Value + 1).OfType <Object>().ToList();
totalResults = fuzzResults.Count();
return(fuzzResults.Take(count.Value));
}
else
{
return(retVal.Skip(offset).Take(count.Value).OfType <Object>());
}
}
else
{
return(retVal.Skip(offset).OfType <Object>());
}
}
else
{
totalResults = retVal.Count();
return(new List <Object>());
}
}
catch (Exception ex)
{
this.m_tracer.TraceError("Error performing underlying query: {0}", ex);
if (retVal != null)
{
this.m_tracer.TraceEvent(EventLevel.Error, context.GetQueryLiteral(retVal.ToSqlStatement()));
}
context.Dispose(); // No longer important
throw;
}
#if DEBUG
finally
{
sw.Stop();
}
#endif
}
/// <summary>
/// Perform the query
/// </summary>
protected virtual IEnumerable <Object> QueryInternal(DataContext context, Expression <Func <TModel, bool> > query, Guid queryId, int offset, int?count, out int totalResults, bool incudeCount = true)
{
#if DEBUG
Stopwatch sw = new Stopwatch();
sw.Start();
#endif
SqlStatement domainQuery = null;
try
{
// Query has been registered?
if (queryId != Guid.Empty && this.m_queryPersistence?.IsRegistered(queryId.ToString()) == true)
{
totalResults = (int)this.m_queryPersistence.QueryResultTotalQuantity(queryId.ToString());
var resultKeys = this.m_queryPersistence.GetQueryResults <Guid>(queryId.ToString(), offset, count.Value);
return(resultKeys.Select(p => p.Id).OfType <Object>());
}
// Is obsoletion time already specified?
if (!query.ToString().Contains("ObsoletionTime") && typeof(BaseEntityData).IsAssignableFrom(typeof(TModel)))
{
var obsoletionReference = Expression.MakeBinary(ExpressionType.Equal, Expression.MakeMemberAccess(query.Parameters[0], typeof(TModel).GetProperty(nameof(BaseEntityData.ObsoletionTime))), Expression.Constant(null));
query = Expression.Lambda <Func <TModel, bool> >(Expression.MakeBinary(ExpressionType.AndAlso, obsoletionReference, query.Body), query.Parameters);
}
// Domain query
domainQuery = context.CreateSqlStatement <TDomain>().SelectFrom();
var expression = m_mapper.MapModelExpression <TModel, TDomain>(query, false);
if (expression != null)
{
Type lastJoined = typeof(TDomain);
if (typeof(CompositeResult).IsAssignableFrom(typeof(TQueryReturn)))
{
foreach (var p in typeof(TQueryReturn).GenericTypeArguments.Select(o => AdoPersistenceService.GetMapper().MapModelType(o)))
{
if (p != typeof(TDomain))
{
// Find the FK to join
domainQuery.InnerJoin(lastJoined, p);
lastJoined = p;
}
}
}
domainQuery.Where <TDomain>(expression);
}
else
{
m_tracer.TraceEvent(System.Diagnostics.TraceEventType.Verbose, 0, "Will use slow query construction due to complex mapped fields");
domainQuery = AdoPersistenceService.GetQueryBuilder().CreateQuery(query);
}
// Count = 0 means we're not actually fetching anything so just hit the db
if (count != 0)
{
domainQuery = this.AppendOrderBy(domainQuery);
// Query id just get the UUIDs in the db
if (queryId != Guid.Empty && count != 0)
{
ColumnMapping pkColumn = null;
if (typeof(CompositeResult).IsAssignableFrom(typeof(TQueryReturn)))
{
foreach (var p in typeof(TQueryReturn).GenericTypeArguments.Select(o => AdoPersistenceService.GetMapper().MapModelType(o)))
{
if (!typeof(DbSubTable).IsAssignableFrom(p) && !typeof(IDbVersionedData).IsAssignableFrom(p))
{
pkColumn = TableMapping.Get(p).Columns.SingleOrDefault(o => o.IsPrimaryKey);
break;
}
}
}
else
{
pkColumn = TableMapping.Get(typeof(TQueryReturn)).Columns.SingleOrDefault(o => o.IsPrimaryKey);
}
var keyQuery = AdoPersistenceService.GetQueryBuilder().CreateQuery(query, pkColumn).Build();
var resultKeys = context.Query <Guid>(keyQuery.Build());
//ApplicationContext.Current.GetService<IThreadPoolService>().QueueNonPooledWorkItem(a => this.m_queryPersistence?.RegisterQuerySet(queryId.ToString(), resultKeys.Select(o => new Identifier<Guid>(o)).ToArray(), query), null);
// Another check
this.m_queryPersistence?.RegisterQuerySet(queryId.ToString(), resultKeys.Count(), resultKeys.Select(o => new Identifier <Guid>(o)).Take(1000).ToArray(), query);
ApplicationContext.Current.GetService <IThreadPoolService>().QueueNonPooledWorkItem(o =>
{
int ofs = 1000;
var rkeys = o as Guid[];
while (ofs < rkeys.Length)
{
this.m_queryPersistence?.AddResults(queryId.ToString(), rkeys.Skip(ofs).Take(1000).Select(k => new Identifier <Guid>(k)).ToArray());
ofs += 1000;
}
}, resultKeys.ToArray());
if (incudeCount)
{
totalResults = (int)resultKeys.Count();
}
else
{
totalResults = 0;
}
var retVal = resultKeys.Skip(offset);
if (count.HasValue)
{
retVal = retVal.Take(count.Value);
}
return(retVal.OfType <Object>());
}
else if (incudeCount)
{
totalResults = context.Count(domainQuery);
if (totalResults == 0)
{
return(new List <Object>());
}
}
else
{
totalResults = 0;
}
if (offset > 0)
{
domainQuery.Offset(offset);
}
if (count.HasValue)
{
domainQuery.Limit(count.Value);
}
return(this.DomainQueryInternal <TQueryReturn>(context, domainQuery, ref totalResults).OfType <Object>());
}
else
{
totalResults = context.Count(domainQuery);
return(new List <Object>());
}
}
catch (Exception ex)
{
if (domainQuery != null)
{
this.m_tracer.TraceEvent(TraceEventType.Error, ex.HResult, context.GetQueryLiteral(domainQuery.Build()));
}
context.Dispose(); // No longer important
throw;
}
#if DEBUG
finally
{
sw.Stop();
}
#endif
}
/// <summary>
/// Queries for the specified model.
/// </summary>
/// <param name="context">The context.</param>
/// <param name="query">The query.</param>
/// <param name="offset">The offset.</param>
/// <param name="count">The count.</param>
/// <param name="totalResults">The total results.</param>
/// <param name="countResults">if set to <c>true</c> [count results].</param>
/// <param name="overrideAuthContext">The principal to use instead of the default.</param>
/// <returns>Returns a list of the specified model instance which match the given query expression.</returns>
public override IEnumerable <TModel> QueryInternal(DataContext context, Expression <Func <TModel, bool> > query, int offset, int?count, out int totalResults, bool countResults)
{
try
{
// Domain query
SqlStatement domainQuery = context.CreateSqlStatement <TDomain>().SelectFrom();
var expression = ModelMapper.MapModelExpression <TModel, TDomain, bool>(query, false);
if (expression != null)
{
Type lastJoined = typeof(TDomain);
if (typeof(CompositeResult).IsAssignableFrom(typeof(TQueryReturn)))
{
foreach (var p in typeof(TQueryReturn).GenericTypeArguments.Select(o => ReportingPersistenceService.ModelMapper.MapModelType(o)))
{
if (p != typeof(TDomain))
{
// Find the FK to join
domainQuery.InnerJoin(lastJoined, p);
lastJoined = p;
}
}
}
domainQuery.Where(expression);
}
else
{
this.traceSource.TraceEvent(EventLevel.Verbose, "Will use slow query construction due to complex mapped fields");
domainQuery = ReportingPersistenceService.QueryBuilder.CreateQuery(query);
}
// Build and see if the query already exists on the stack???
domainQuery = domainQuery.Build();
if (Configuration.TraceSql)
{
traceSource.TraceEvent(EventLevel.Verbose, "Trace SQL flag is set to true, printing SQL statement");
traceSource.TraceEvent(EventLevel.Verbose, $"GENERATED SQL STATEMENT: {domainQuery.SQL}");
}
if (offset > 0)
{
domainQuery.Offset(offset);
}
if (count.HasValue)
{
domainQuery.Limit(count.Value);
}
var results = context.Query <TQueryReturn>(domainQuery).OfType <object>();
totalResults = results.Count();
return(results.Select(r => ToModelInstance(r, context)));
}
catch (Exception e)
{
traceSource.TraceEvent(EventLevel.Error, $"Unable to query: {e}");
throw;
}
}
/// <summary>
/// Perform the query
/// </summary>
protected virtual IEnumerable <Object> QueryInternalEx(DataContext context, Expression <Func <TModel, bool> > query, Guid queryId, int offset, int?count, out int totalResults, bool incudeCount, ModelSort <TModel>[] orderBy)
{
#if DEBUG
Stopwatch sw = new Stopwatch();
sw.Start();
#endif
SqlStatement domainQuery = null;
try
{
// Query has been registered?
if (queryId != Guid.Empty && this.m_queryPersistence?.IsRegistered(queryId) == true)
{
totalResults = (int)this.m_queryPersistence.QueryResultTotalQuantity(queryId);
var resultKeys = this.m_queryPersistence.GetQueryResults(queryId, offset, count.Value);
return(resultKeys.OfType <Object>());
}
// Is obsoletion time already specified?
if (!query.ToString().Contains("ObsoletionTime") && typeof(BaseEntityData).IsAssignableFrom(typeof(TModel)))
{
var obsoletionReference = Expression.MakeBinary(ExpressionType.Equal, Expression.MakeMemberAccess(query.Parameters[0], typeof(TModel).GetProperty(nameof(BaseEntityData.ObsoletionTime))), Expression.Constant(null));
query = Expression.Lambda <Func <TModel, bool> >(Expression.MakeBinary(ExpressionType.AndAlso, obsoletionReference, query.Body), query.Parameters);
}
// Domain query
domainQuery = context.CreateSqlStatement <TDomain>().SelectFrom();
var expression = m_mapper.MapModelExpression <TModel, TDomain, bool>(query, false);
if (expression != null)
{
Type lastJoined = typeof(TDomain);
if (typeof(CompositeResult).IsAssignableFrom(typeof(TQueryReturn)))
{
foreach (var p in typeof(TQueryReturn).GenericTypeArguments.Select(o => AdoAuditPersistenceService.GetMapper().MapModelType(o)))
{
if (p != typeof(TDomain))
{
// Find the FK to join
domainQuery.InnerJoin(lastJoined, p);
lastJoined = p;
}
}
}
domainQuery.Where <TDomain>(expression);
}
else
{
m_tracer.TraceVerbose("Will use slow query construction due to complex mapped fields");
domainQuery = AdoAuditPersistenceService.GetQueryBuilder().CreateQuery(query, orderBy);
}
var retVal = this.DomainQueryInternal <TQueryReturn>(context, domainQuery);
this.AppendOrderBy(retVal.Statement, orderBy);
// Count = 0 means we're not actually fetching anything so just hit the db
if (count != 0)
{
// Stateful query identifier = We need to add query results
if (queryId != Guid.Empty && ApplicationServiceContext.Current.GetService <IQueryPersistenceService>() != null)
{
// Create on a separate thread the query results
var keys = retVal.Keys <Guid>().ToArray();
totalResults = keys.Length;
this.m_queryPersistence?.RegisterQuerySet(queryId, keys, query, totalResults);
}
else if (count.HasValue && !AdoAuditPersistenceService.GetConfiguration().UseFuzzyTotals) // Get an exact total
{
totalResults = retVal.Count();
}
else
{
totalResults = 0;
}
// Fuzzy totals - This will only fetch COUNT + 1 as the total results
if (count.HasValue)
{
if ((AdoAuditPersistenceService.GetConfiguration().UseFuzzyTotals) && totalResults == 0)
{
var fuzzResults = retVal.Skip(offset).Take(count.Value + 1).OfType <Object>().ToList();
totalResults = offset + fuzzResults.Count();
return(fuzzResults.Take(count.Value));
}
else
{
return(retVal.Skip(offset).Take(count.Value).OfType <Object>());
}
}
else
{
return(retVal.Skip(offset).OfType <Object>());
}
}
else
{
totalResults = retVal.Count();
return(new List <Object>());
}
}
catch (Exception ex)
{
if (domainQuery != null)
{
this.m_tracer.TraceError(context.GetQueryLiteral(domainQuery.Build()));
}
context.Dispose(); // No longer important
throw;
}
#if DEBUG
finally
{
sw.Stop();
}
#endif
}
