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U4-9111 Benchmark BulkCopy changes from U4-9107

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This commit is contained in:
Shannon
2016-10-27 17:36:08 +02:00
parent 7495d89a79
commit 21e2c35ab0
13 changed files with 554 additions and 216 deletions
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57
src/Umbraco.Core/Persistence/Querying/ModelToSqlExpressionHelper.cs
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@@ -11,14 +11,24 @@ using Umbraco.Core.Persistence.SqlSyntax;
namespace Umbraco.Core.Persistence.Querying
{
internal class ModelToSqlExpressionHelper<T> : BaseExpressionHelper<T>
/// <summary>
/// An expression tree parser to create SQL statements and SQL parameters based on a given strongly typed expression based on Umbraco's business logic Models
/// </summary>
/// <remarks>
/// This object stores state, it cannot be re-used to parse an expression
/// </remarks>
internal class ModelToSqlExpressionHelper<T> : BaseExpressionHelper
{
private readonly BaseMapper _mapper;
public ModelToSqlExpressionHelper()
public ModelToSqlExpressionHelper(ISqlSyntaxProvider sqlSyntax, BaseMapper mapper) : base(sqlSyntax)
{
_mapper = mapper;
}
public ModelToSqlExpressionHelper() : this(SqlSyntaxContext.SqlSyntaxProvider, MappingResolver.Current.ResolveMapperByType(typeof(T)))
{
_mapper = MappingResolver.Current.ResolveMapperByType(typeof(T));
}
protected override string VisitMemberAccess(MemberExpression m)
@@ -27,18 +37,30 @@ namespace Umbraco.Core.Persistence.Querying
m.Expression.NodeType == ExpressionType.Parameter
&& m.Expression.Type == typeof(T))
{
var field = _mapper.Map(m.Member.Name, true);
if (field.IsNullOrWhiteSpace())
throw new InvalidOperationException("The mapper returned an empty field for the member name: " + m.Member.Name);
return field;
//don't execute if compiled
if (IsCompiled == false)
{
var field = _mapper.Map(m.Member.Name, true);
if (field.IsNullOrWhiteSpace())
throw new InvalidOperationException("The mapper returned an empty field for the member name: " + m.Member.Name);
return field;
}
//already compiled, return
return string.Empty;
}
if (m.Expression != null && m.Expression.NodeType == ExpressionType.Convert)
{
var field = _mapper.Map(m.Member.Name, true);
if (field.IsNullOrWhiteSpace())
throw new InvalidOperationException("The mapper returned an empty field for the member name: " + m.Member.Name);
return field;
//don't execute if compiled
if (IsCompiled == false)
{
var field = _mapper.Map(m.Member.Name, true);
if (field.IsNullOrWhiteSpace())
throw new InvalidOperationException("The mapper returned an empty field for the member name: " + m.Member.Name);
return field;
}
//already compiled, return
return string.Empty;
}
var member = Expression.Convert(m, typeof(object));
@@ -47,16 +69,13 @@ namespace Umbraco.Core.Persistence.Querying
object o = getter();
SqlParameters.Add(o);
return string.Format("@{0}", SqlParameters.Count - 1);
//return GetQuotedValue(o, o != null ? o.GetType() : null);
//don't execute if compiled
if (IsCompiled == false)
return string.Format("@{0}", SqlParameters.Count - 1);
//already compiled, return
return string.Empty;
}
//protected bool IsFieldName(string quotedExp)
//{
// //Not entirely sure this is reliable, but its better then simply returning true
// return quotedExp.LastIndexOf("'", StringComparison.InvariantCultureIgnoreCase) + 1 != quotedExp.Length;
//}
}
}