public MergeResult <TCompared> DetectChanges <TCompared>(MapSpecification <IEnumerable <TOutput>, IEnumerable <TCompared> > mapSpec, FindSpecification <TFilter> specification, IEqualityComparer <TCompared> comparer)
{
using (var scope = new TransactionScope(TransactionScopeOption.Suppress))
{
var sourceObjects = _sourceProvider.Invoke(specification).Map(_query);
var targetObjects = _targetProvider.Invoke(specification).Map(_query);
var result = MergeTool.Merge(
mapSpec.Map(sourceObjects).ToArray(),
mapSpec.Map(targetObjects).ToArray(),
comparer);
scope.Complete();
return(result);
}
}
public void Replicate()
{
try
{
var sourceQueryable = _mapSpecification.Map(_source);
var options = new BulkCopyOptions {
BulkCopyTimeout = 1800
};
_target.GetTable <T>().Delete();
_target.BulkCopy(options, sourceQueryable);
}
catch (Exception ex)
{
var linq2DBSource = _source as LinqToDbQuery;
throw new Exception($"Can not process entity type {typeof(T).Name}\n{linq2DBSource?.LastQuery}", ex);
}
}
public void Replicate()
{
try
{
var sourceQueryable = _mapSpecification.Map(_source);
var options = new BulkCopyOptions {
BulkCopyTimeout = 1800
};
var temptable = _target.CreateTable <T>($"#{Guid.NewGuid():N}");
temptable.BulkCopy(options, sourceQueryable);
var primaryKeys = _target.MappingSchema.GetEntityDescriptor(typeof(T)).Columns.Where(x => x.IsPrimaryKey);
var keyExpression = CreateMappingExpressionForProperties(primaryKeys.Select(x => x.MemberInfo));
var datatable = _target.GetTable <T>();
temptable.Join(datatable, keyExpression, keyExpression, (x, y) => x).Update(datatable, x => x);
}
catch (Exception ex)
{
var linq2DBSource = _source as LinqToDbQuery;
throw new Exception($"Can not process entity type {typeof(T).Name}\n{linq2DBSource?.LastQuery}", ex);
}
}
protected override FactMetadata <T> Create()
{
MapToObjectsSpecProvider <T, T> mapSpecificationProviderForSource =
specification => new MapSpecification <IQuery, IEnumerable <T> >(q => _sourceMappingSpecification.Map(q).Where(specification));
var targetMappingSpecification = new MapSpecification <IQuery, IQueryable <T> >(q => q.For <T>());
MapToObjectsSpecProvider <T, T> mapSpecificationProviderForTarget =
specification => new MapSpecification <IQuery, IEnumerable <T> >(q => targetMappingSpecification.Map(q).Where(specification));
return(new FactMetadata <T>(mapSpecificationProviderForSource, mapSpecificationProviderForTarget, Specs.Find.ByIds <T>, Features));
}
public StatisticsRecalculationMetadataBuilder <TStatisticsObject, TEntityKey> HasTarget(MapSpecification <IQuery, IQueryable <TStatisticsObject> > targetMappingSpecification)
{
_mapSpecificationProviderForTarget = specification => new MapSpecification <IQuery, IEnumerable <TStatisticsObject> >(q => targetMappingSpecification.Map(q).Where(specification));;
return(this);
}
public AggregateMetadataBuilder <T> HasValueObject <TValueObject>(
MapSpecification <IQuery, IQueryable <TValueObject> > sourceMappingSpecification,
Func <IReadOnlyCollection <long>, FindSpecification <TValueObject> > findSpecificationProvider)
where TValueObject : class
{
MapToObjectsSpecProvider <TValueObject, TValueObject> mapSpecificationProviderForSource =
specification => new MapSpecification <IQuery, IEnumerable <TValueObject> >(q => sourceMappingSpecification.Map(q).Where(specification));
var targetMappingSpecification = new MapSpecification <IQuery, IQueryable <TValueObject> >(q => q.For <TValueObject>());
MapToObjectsSpecProvider <TValueObject, TValueObject> mapSpecificationProviderForTarget =
specification => new MapSpecification <IQuery, IEnumerable <TValueObject> >(q => targetMappingSpecification.Map(q).Where(specification));
Childs(new ValueObjectMetadataElement <TValueObject>(mapSpecificationProviderForSource, mapSpecificationProviderForTarget, findSpecificationProvider));
return(this);
}
public StatisticsRecalculationMetadataBuilder <T> HasSource(MapSpecification <IQuery, IQueryable <T> > sourceMappingSpecification)
{
_mapSpecificationProviderForSource = specification => new MapSpecification <IQuery, IEnumerable <T> >(q => sourceMappingSpecification.Map(q).Where(specification));
return(this);
}
protected override AggregateMetadata <T, TKey> Create()
{
MapToObjectsSpecProvider <T, T> mapSpecificationProviderForSource =
specification => new MapSpecification <IQuery, IEnumerable <T> >(q => _mapToSourceSpec.Map(q).Where(specification));
var targetMappingSpecification = new MapSpecification <IQuery, IQueryable <T> >(q => q.For <T>());
MapToObjectsSpecProvider <T, T> mapSpecificationProviderForTarget =
specification => new MapSpecification <IQuery, IEnumerable <T> >(q => targetMappingSpecification.Map(q).Where(specification));
return(new AggregateMetadata <T, TKey>(mapSpecificationProviderForSource, mapSpecificationProviderForTarget, Features));
}
