private bool CompareGroupBy(GroupByTransformationNode transformation1, GroupByTransformationNode transformation2)
{
if (transformation1 == transformation2)
{
return(true);
}
if (transformation1 == null || transformation2 == null)
{
return(false);
}
if (!_queryNodeComparer.Compare(transformation1.Source, transformation2.Source))
{
return(false);
}
if (!CompareAggregate(transformation1.ChildTransformations as AggregateTransformationNode, transformation2.ChildTransformations as AggregateTransformationNode))
{
return(false);
}
if (!EnumerableComparer.Compare(transformation1.GroupingProperties, transformation2.GroupingProperties, CompareGroupByPropertyNode))
{
return(false);
}
return(true);
}
public void BindApplyWitGroupByWithComplexShouldReturnApplyClause()
{
IEnumerable <QueryToken> tokens = _parser.ParseApply("groupby((MyAddress/City))");
MetadataBinder metadataBiner = new MetadataBinder(_bindingState);
ApplyBinder binder = new ApplyBinder(metadataBiner.Bind, _bindingState);
ApplyClause actual = binder.BindApply(tokens);
Assert.NotNull(actual);
actual.Transformations.Should().HaveCount(1);
List <TransformationNode> transformations = actual.Transformations.ToList();
GroupByTransformationNode groupBy = transformations[0] as GroupByTransformationNode;
groupBy.Should().NotBeNull();
groupBy.Kind.Should().Be(TransformationNodeKind.GroupBy);
groupBy.GroupingProperties.Should().NotBeNull();
groupBy.GroupingProperties.Should().HaveCount(1);
groupBy.ChildTransformations.Should().BeNull();
List <GroupByPropertyNode> groupingProperties = groupBy.GroupingProperties.ToList();
GroupByPropertyNode addressNode = groupingProperties[0];
addressNode.Name.Should().Be("MyAddress");
addressNode.Expression.Should().BeNull();
addressNode.ChildTransformations.Should().HaveCount(1);
GroupByPropertyNode cityNode = addressNode.ChildTransformations[0];
cityNode.Name.Should().Be("City");
cityNode.Expression.Should().NotBeNull();
cityNode.ChildTransformations.Should().BeEmpty();
}
public void BindApplyWitGroupByWithDeepComplexShouldReturnApplyClause()
{
IEnumerable <QueryToken> tokens = _parser.ParseApply("groupby((MyAddress/NextHome/City))");
MetadataBinder metadataBiner = new MetadataBinder(_bindingState);
ApplyBinder binder = new ApplyBinder(metadataBiner.Bind, _bindingState);
ApplyClause actual = binder.BindApply(tokens);
Assert.NotNull(actual);
var transformation = Assert.Single(actual.Transformations);
GroupByTransformationNode groupBy = Assert.IsType <GroupByTransformationNode>(transformation);
Assert.Equal(TransformationNodeKind.GroupBy, groupBy.Kind);
Assert.NotNull(groupBy.GroupingProperties);
Assert.Null(groupBy.ChildTransformations);
GroupByPropertyNode addressNode = Assert.Single(groupBy.GroupingProperties);
Assert.Equal("MyAddress", addressNode.Name);
Assert.Null(addressNode.Expression);
GroupByPropertyNode nextHomeNode = Assert.Single(addressNode.ChildTransformations);
Assert.Equal("NextHome", nextHomeNode.Name);
Assert.Null(nextHomeNode.Expression);
GroupByPropertyNode cityNode = Assert.Single(nextHomeNode.ChildTransformations);
Assert.Equal("City", cityNode.Name);
Assert.NotNull(cityNode.Expression);
Assert.Empty(cityNode.ChildTransformations);
}
public void BindApplyWithExpandReturnApplyClause()
{
IEnumerable <QueryToken> tokens =
_parser.ParseApply(
"expand(MyPaintings, filter(FrameColor eq 'Red'))/groupby((LifeTime),aggregate(MyPaintings($count as Count)))");
BindingState state = new BindingState(_configuration);
MetadataBinder metadataBiner = new MetadataBinder(_bindingState);
ApplyBinder binder = new ApplyBinder(metadataBiner.Bind, _bindingState, V4configuration, new ODataPathInfo(HardCodedTestModel.GetPersonType(), HardCodedTestModel.GetPeopleSet()));
ApplyClause actual = binder.BindApply(tokens);
Assert.NotNull(actual);
Assert.Equal(2, actual.Transformations.Count());
ExpandTransformationNode expand = Assert.IsType <ExpandTransformationNode>(actual.Transformations.First());
Assert.NotNull(expand.ExpandClause);
ExpandedNavigationSelectItem expandItem = Assert.IsType <ExpandedNavigationSelectItem>(Assert.Single(expand.ExpandClause.SelectedItems));
Assert.Equal("Paintings", expandItem.NavigationSource.Name);
Assert.NotNull(expandItem.FilterOption);
GroupByTransformationNode groupBy = Assert.IsType <GroupByTransformationNode>(actual.Transformations.Last());
Assert.Single(groupBy.GroupingProperties);
AggregateTransformationNode aggregate = Assert.IsType <AggregateTransformationNode>(groupBy.ChildTransformations);
Assert.IsType <EntitySetAggregateExpression>(Assert.Single(aggregate.AggregateExpressions));
}
public void BindApplyWitGroupByWithDeepNavigationShouldReturnApplyClause()
{
IEnumerable <QueryToken> tokens = _parser.ParseApply("groupby((MyDog/FastestOwner/FirstName))");
MetadataBinder metadataBiner = new MetadataBinder(_bindingState);
ApplyBinder binder = new ApplyBinder(metadataBiner.Bind, _bindingState);
ApplyClause actual = binder.BindApply(tokens);
Assert.NotNull(actual);
TransformationNode transformation = Assert.Single(actual.Transformations);
GroupByTransformationNode groupBy = Assert.IsType <GroupByTransformationNode>(transformation);
Assert.Equal(TransformationNodeKind.GroupBy, groupBy.Kind);
Assert.NotNull(groupBy.GroupingProperties);
Assert.Null(groupBy.ChildTransformations);
GroupByPropertyNode dogNode = Assert.Single(groupBy.GroupingProperties);
Assert.Equal("MyDog", dogNode.Name);
Assert.Null(dogNode.Expression);
GroupByPropertyNode ownerNode = Assert.Single(dogNode.ChildTransformations);
Assert.Equal("FastestOwner", ownerNode.Name);
Assert.Null(ownerNode.Expression);
GroupByPropertyNode nameNode = Assert.Single(ownerNode.ChildTransformations);
Assert.Equal("FirstName", nameNode.Name);
Assert.NotNull(nameNode.Expression);
Assert.Empty(nameNode.ChildTransformations);
}
public void BindApplyWitMultipleTokensShouldReturnApplyClause()
{
IEnumerable <QueryToken> tokens =
_parser.ParseApply(
"groupby((ID, SSN, LifeTime))/aggregate(LifeTime with sum as TotalLife)/groupby((TotalLife))/aggregate(TotalLife with sum as TotalTotalLife)");
BindingState state = new BindingState(_configuration);
MetadataBinder metadataBiner = new MetadataBinder(_bindingState);
ApplyBinder binder = new ApplyBinder(metadataBiner.Bind, _bindingState);
ApplyClause actual = binder.BindApply(tokens);
actual.Should().NotBeNull();
actual.Transformations.Should().HaveCount(4);
List <TransformationNode> transformations = actual.Transformations.ToList();
GroupByTransformationNode firstGroupBy = transformations[0] as GroupByTransformationNode;
firstGroupBy.Should().NotBeNull();
TransformationNode firstAggregate = transformations[1] as AggregateTransformationNode;
firstAggregate.Should().NotBeNull();
TransformationNode scecondGroupBy = transformations[2] as GroupByTransformationNode;
scecondGroupBy.Should().NotBeNull();
AggregateTransformationNode scecondAggregate = transformations[3] as AggregateTransformationNode;
scecondAggregate.Should().NotBeNull();
}
public void BindApplyWithEntitySetAggregationReturnApplyClause()
{
IEnumerable <QueryToken> tokens =
_parser.ParseApply(
"groupby((LifeTime),aggregate(MyPaintings($count as Count)))");
BindingState state = new BindingState(_configuration);
MetadataBinder metadataBiner = new MetadataBinder(_bindingState);
ApplyBinder binder = new ApplyBinder(metadataBiner.Bind, _bindingState);
ApplyClause actual = binder.BindApply(tokens);
actual.Should().NotBeNull();
actual.Transformations.Should().HaveCount(1);
GroupByTransformationNode groupBy = actual.Transformations.First() as GroupByTransformationNode;
groupBy.Should().NotBeNull();
groupBy.GroupingProperties.Should().HaveCount(1);
AggregateTransformationNode aggregate = groupBy.ChildTransformations as AggregateTransformationNode;
aggregate.Should().NotBeNull();
aggregate.AggregateExpressions.Should().HaveCount(1);
EntitySetAggregateExpression entitySetAggregate = aggregate.AggregateExpressions.First() as EntitySetAggregateExpression;
entitySetAggregate.Should().NotBeNull();
}
public void BindApplyWitGroupByWithNavigationShouldReturnApplyClause()
{
IEnumerable <QueryToken> tokens = _parser.ParseApply("groupby((MyDog/City))");
ApplyBinder binder = new ApplyBinder(FakeBindMethods.BindMethodReturnsPersonDogNameNavigation, _bindingState);
ApplyClause actual = binder.BindApply(tokens);
actual.Should().NotBeNull();
actual.Transformations.Should().HaveCount(1);
List <TransformationNode> transformations = actual.Transformations.ToList();
GroupByTransformationNode groupBy = transformations[0] as GroupByTransformationNode;
groupBy.Should().NotBeNull();
groupBy.Kind.Should().Be(TransformationNodeKind.GroupBy);
groupBy.GroupingProperties.Should().NotBeNull();
groupBy.GroupingProperties.Should().HaveCount(1);
List <GroupByPropertyNode> groupingProperties = groupBy.GroupingProperties.ToList();
GroupByPropertyNode dogNode = groupingProperties[0];
dogNode.Expression.Should().BeNull();
dogNode.Name.Should().Be("MyDog");
dogNode.ChildTransformations.Should().HaveCount(1);
GroupByPropertyNode nameNode = dogNode.ChildTransformations[0];
dogNode.Name.Should().Be("MyDog");
nameNode.Expression.Should().BeSameAs(FakeBindMethods.FakePersonDogNameNode);
groupBy.ChildTransformations.Should().BeNull();
}
public void BindApplyWitGroupByShouldReturnApplyClause()
{
IEnumerable <QueryToken> tokens = _parser.ParseApply("groupby((UnitPrice, SalePrice))");
ApplyBinder binder = new ApplyBinder(FakeBindMethods.BindSingleComplexProperty, _bindingState);
ApplyClause actual = binder.BindApply(tokens);
actual.Should().NotBeNull();
actual.Transformations.Should().HaveCount(1);
List <TransformationNode> transformations = actual.Transformations.ToList();
GroupByTransformationNode groupBy = transformations[0] as GroupByTransformationNode;
groupBy.Should().NotBeNull();
groupBy.Kind.Should().Be(TransformationNodeKind.GroupBy);
groupBy.GroupingProperties.Should().NotBeNull();
groupBy.GroupingProperties.Should().HaveCount(2);
List <GroupByPropertyNode> groupingProperties = groupBy.GroupingProperties.ToList();
VerifyIsFakeSingleValueNode(groupingProperties[0].Expression);
VerifyIsFakeSingleValueNode(groupingProperties[1].Expression);
groupBy.ChildTransformations.Should().BeNull();
}
private void Translate(GroupByTransformationNode transformation)
{
bool appendComma = false;
foreach (GroupByPropertyNode node in transformation.GroupingProperties)
{
if (appendComma)
{
AppendComma(appendComma);
}
else
{
appendComma = true;
query.Append(ExpressionConstants.SymbolOpenParen);
}
Translate(node);
}
if (appendComma)
{
query.Append(ExpressionConstants.SymbolClosedParen);
}
if (transformation.ChildTransformations != null)
{
AppendComma(true);
Translate(transformation.ChildTransformations);
}
}
public void BindApplyWitGroupByWithComplexAndNavigationShouldReturnApplyClause()
{
IEnumerable <QueryToken> tokens = _parser.ParseApply("groupby((MyAddress/PostBoxPainting/Artist))");
MetadataBinder metadataBiner = new MetadataBinder(_bindingState);
ApplyBinder binder = new ApplyBinder(metadataBiner.Bind, _bindingState);
ApplyClause actual = binder.BindApply(tokens);
Assert.NotNull(actual);
var transformation = Assert.Single(actual.Transformations);
GroupByTransformationNode groupBy = Assert.IsType <GroupByTransformationNode>(transformation);
Assert.Equal(TransformationNodeKind.GroupBy, groupBy.Kind);
Assert.Null(groupBy.ChildTransformations);
Assert.NotNull(groupBy.GroupingProperties);
GroupByPropertyNode addressNode = Assert.Single(groupBy.GroupingProperties);
Assert.Equal("MyAddress", addressNode.Name);
Assert.Null(addressNode.Expression);
GroupByPropertyNode postBoxPaintingNode = Assert.Single(addressNode.ChildTransformations);
Assert.Equal("PostBoxPainting", postBoxPaintingNode.Name);
Assert.Null(postBoxPaintingNode.Expression);
GroupByPropertyNode artistNode = Assert.Single(postBoxPaintingNode.ChildTransformations);
Assert.Equal("Artist", artistNode.Name);
Assert.NotNull(artistNode.Expression);
Assert.Empty(artistNode.ChildTransformations);
}
public void BindApplyWitGroupByWithNavigationShouldReturnApplyClause()
{
IEnumerable <QueryToken> tokens = _parser.ParseApply("groupby((MyDog/City))");
ApplyBinder binder = new ApplyBinder(FakeBindMethods.BindMethodReturnsPersonDogColorNavigation, _bindingState);
ApplyClause actual = binder.BindApply(tokens);
Assert.NotNull(actual);
GroupByTransformationNode groupBy = Assert.IsType <GroupByTransformationNode>(Assert.Single(actual.Transformations));
Assert.Equal(TransformationNodeKind.GroupBy, groupBy.Kind);
Assert.NotNull(groupBy.GroupingProperties);
Assert.Null(groupBy.ChildTransformations);
GroupByPropertyNode dogNode = Assert.Single(groupBy.GroupingProperties);
Assert.Null(dogNode.Expression);
Assert.Equal("MyDog", dogNode.Name);
Assert.NotNull(dogNode.ChildTransformations);
List <GroupByPropertyNode> groupingProperties = groupBy.GroupingProperties.ToList();
Assert.Null(groupBy.ChildTransformations);
GroupByPropertyNode colorNode = Assert.Single(dogNode.ChildTransformations);
Assert.Equal("Color", colorNode.Name);
Assert.Same(FakeBindMethods.FakePersonDogColorNode, colorNode.Expression);
Assert.Empty(colorNode.ChildTransformations);
}
private MethodCallExpression ApplyGroupBy(Expression source, GroupByTransformationNode transformation)
{
Type sourceType = OeExpressionHelper.GetCollectionItemType(source.Type);
ParameterExpression sourceParameter = Expression.Parameter(sourceType);
var visitor = CreateVisitor(sourceParameter);
var expressions = new List <Expression>();
foreach (GroupByPropertyNode node in transformation.GroupingProperties)
{
if (node.ChildTransformations != null && node.ChildTransformations.Count > 0)
{
if (node.ChildTransformations.Count > 1)
{
throw new NotSupportedException();
}
GroupByPropertyNode childNode = node.ChildTransformations[0];
String propertyName = node.Name + "_" + childNode.Name;
Expression e = visitor.TranslateNode(childNode.Expression);
expressions.Add(e);
_aggProperties.Add(CreateEdmProperty(_visitor.EdmModel, e.Type, propertyName, true));
}
else
{
Expression e = visitor.TranslateNode(node.Expression);
expressions.Add(e);
_aggProperties.Add(CreateEdmProperty(_visitor.EdmModel, e.Type, node.Name, true));
}
}
NewExpression newExpression = OeExpressionHelper.CreateTupleExpression(expressions);
LambdaExpression lambda = Expression.Lambda(newExpression, sourceParameter);
MethodInfo groupByMethodInfo = OeMethodInfoHelper.GetGroupByMethodInfo(sourceType, newExpression.Type);
MethodCallExpression groupByCall = Expression.Call(groupByMethodInfo, source, lambda);
var aggTransformation = (AggregateTransformationNode)transformation.ChildTransformations;
if (aggTransformation == null)
{
expressions.Clear();
sourceType = OeExpressionHelper.GetCollectionItemType(groupByCall.Type);
sourceParameter = Expression.Parameter(sourceType);
expressions.Add(Expression.Property(sourceParameter, nameof(IGrouping <Object, Object> .Key)));
newExpression = OeExpressionHelper.CreateTupleExpression(expressions);
MethodInfo selectMethodInfo = OeMethodInfoHelper.GetSelectMethodInfo(sourceType, newExpression.Type);
lambda = Expression.Lambda(newExpression, sourceParameter);
return(Expression.Call(selectMethodInfo, groupByCall, lambda));
}
return(ApplyAggregate(groupByCall, aggTransformation));
}
public void BindApplyWitGroupByWithAggregateShouldReturnApplyClause()
{
IEnumerable <QueryToken> tokens = _parser.ParseApply("groupby((UnitPrice, SalePrice), aggregate(UnitPrice with sum as TotalPrice))");
ApplyBinder binder = new ApplyBinder(FakeBindMethods.BindSingleComplexProperty, _bindingState);
ApplyClause actual = binder.BindApply(tokens);
Assert.NotNull(actual);
GroupByTransformationNode groupBy = Assert.IsType <GroupByTransformationNode>(Assert.Single(actual.Transformations));
Assert.NotNull(groupBy.ChildTransformations);
}
public void BindApplyWitGroupByWithNavigationAndDeepComplexAndNavigationShouldReturnApplyClause()
{
IEnumerable <QueryToken> tokens = _parser.ParseApply("groupby((MyFavoritePainting/ArtistAddress/NextHome/PostBoxPainting/Artist))");
MetadataBinder metadataBiner = new MetadataBinder(_bindingState);
ApplyBinder binder = new ApplyBinder(metadataBiner.Bind, _bindingState);
ApplyClause actual = binder.BindApply(tokens);
actual.Should().NotBeNull();
actual.Transformations.Should().HaveCount(1);
List <TransformationNode> transformations = actual.Transformations.ToList();
GroupByTransformationNode groupBy = transformations[0] as GroupByTransformationNode;
groupBy.Should().NotBeNull();
groupBy.Kind.Should().Be(TransformationNodeKind.GroupBy);
groupBy.GroupingProperties.Should().NotBeNull();
groupBy.GroupingProperties.Should().HaveCount(1);
groupBy.ChildTransformations.Should().BeNull();
List <GroupByPropertyNode> groupingProperties = groupBy.GroupingProperties.ToList();
GroupByPropertyNode favoritePaintingNode = groupingProperties[0];
favoritePaintingNode.Name.Should().Be("MyFavoritePainting");
favoritePaintingNode.Expression.Should().BeNull();
favoritePaintingNode.ChildTransformations.Should().HaveCount(1);
GroupByPropertyNode artistAddressNode = favoritePaintingNode.ChildTransformations[0];
artistAddressNode.Name.Should().Be("ArtistAddress");
artistAddressNode.Expression.Should().BeNull();
artistAddressNode.ChildTransformations.Should().HaveCount(1);
GroupByPropertyNode nextHomeNode = artistAddressNode.ChildTransformations[0];
nextHomeNode.Name.Should().Be("NextHome");
nextHomeNode.Expression.Should().BeNull();
nextHomeNode.ChildTransformations.Should().HaveCount(1);
GroupByPropertyNode postBoxPaintingNode = nextHomeNode.ChildTransformations[0];
postBoxPaintingNode.Name.Should().Be("PostBoxPainting");
postBoxPaintingNode.Expression.Should().BeNull();
postBoxPaintingNode.ChildTransformations.Should().HaveCount(1);
GroupByPropertyNode artistNode = postBoxPaintingNode.ChildTransformations[0];
artistNode.Name.Should().Be("Artist");
artistNode.Expression.Should().NotBeNull();
artistNode.ChildTransformations.Should().BeEmpty();
}
public void BindApplyWitGroupByWithAggregateShouldReturnApplyClause()
{
IEnumerable <QueryToken> tokens = _parser.ParseApply("groupby((UnitPrice, SalePrice), aggregate(UnitPrice with sum as TotalPrice))");
ApplyBinder binder = new ApplyBinder(FakeBindMethods.BindSingleComplexProperty, _bindingState);
ApplyClause actual = binder.BindApply(tokens);
actual.Should().NotBeNull();
actual.Transformations.Should().HaveCount(1);
List <TransformationNode> transformations = actual.Transformations.ToList();
GroupByTransformationNode groupBy = transformations[0] as GroupByTransformationNode;
TransformationNode aggregate = groupBy.ChildTransformations;
aggregate.Should().NotBeNull();
}
public void BindApplyWitGroupByWithDeepNavigationAndComplexShouldReturnApplyClause()
{
IEnumerable <QueryToken> tokens = _parser.ParseApply("groupby((MyDog/LionWhoAteMe/LionHeartbeat/Frequency))");
MetadataBinder metadataBiner = new MetadataBinder(_bindingState);
ApplyBinder binder = new ApplyBinder(metadataBiner.Bind, _bindingState);
ApplyClause actual = binder.BindApply(tokens);
actual.Should().NotBeNull();
actual.Transformations.Should().HaveCount(1);
List <TransformationNode> transformations = actual.Transformations.ToList();
GroupByTransformationNode groupBy = transformations[0] as GroupByTransformationNode;
groupBy.Should().NotBeNull();
groupBy.Kind.Should().Be(TransformationNodeKind.GroupBy);
groupBy.GroupingProperties.Should().NotBeNull();
groupBy.GroupingProperties.Should().HaveCount(1);
groupBy.ChildTransformations.Should().BeNull();
List <GroupByPropertyNode> groupingProperties = groupBy.GroupingProperties.ToList();
GroupByPropertyNode dogNode = groupingProperties[0];
dogNode.Name.Should().Be("MyDog");
dogNode.Expression.Should().BeNull();
dogNode.ChildTransformations.Should().HaveCount(1);
GroupByPropertyNode lionNode = dogNode.ChildTransformations[0];
lionNode.Name.Should().Be("LionWhoAteMe");
lionNode.Expression.Should().BeNull();
lionNode.ChildTransformations.Should().HaveCount(1);
GroupByPropertyNode heartBeatNode = lionNode.ChildTransformations[0];
heartBeatNode.Name.Should().Be("LionHeartbeat");
heartBeatNode.Expression.Should().BeNull();
heartBeatNode.ChildTransformations.Should().HaveCount(1);
GroupByPropertyNode frequencyNode = heartBeatNode.ChildTransformations[0];
frequencyNode.Name.Should().Be("Frequency");
frequencyNode.Expression.Should().NotBeNull();
frequencyNode.ChildTransformations.Should().BeEmpty();
}
public void BindApplyWithExpandReturnApplyClause()
{
IEnumerable <QueryToken> tokens =
_parser.ParseApply(
"expand(MyPaintings, filter(FrameColor eq 'Red'))/groupby((LifeTime),aggregate(MyPaintings($count as Count)))");
BindingState state = new BindingState(_configuration);
MetadataBinder metadataBiner = new MetadataBinder(_bindingState);
ApplyBinder binder = new ApplyBinder(metadataBiner.Bind, _bindingState, V4configuration, new ODataPathInfo(HardCodedTestModel.GetPersonType(), HardCodedTestModel.GetPeopleSet()));
ApplyClause actual = binder.BindApply(tokens);
actual.Should().NotBeNull();
actual.Transformations.Should().HaveCount(2);
ExpandTransformationNode expand = actual.Transformations.First() as ExpandTransformationNode;
expand.Should().NotBeNull();
expand.ExpandClause.Should().NotBeNull();
expand.ExpandClause.SelectedItems.Should().HaveCount(1);
ExpandedNavigationSelectItem expandItem = expand.ExpandClause.SelectedItems.First() as ExpandedNavigationSelectItem;
expandItem.Should().NotBeNull();
expandItem.NavigationSource.Name.ShouldBeEquivalentTo("Paintings");
expandItem.FilterOption.Should().NotBeNull();
GroupByTransformationNode groupBy = actual.Transformations.Last() as GroupByTransformationNode;
groupBy.Should().NotBeNull();
groupBy.GroupingProperties.Should().HaveCount(1);
AggregateTransformationNode aggregate = groupBy.ChildTransformations as AggregateTransformationNode;
aggregate.Should().NotBeNull();
aggregate.AggregateExpressions.Should().HaveCount(1);
EntitySetAggregateExpression entitySetAggregate = aggregate.AggregateExpressions.First() as EntitySetAggregateExpression;
entitySetAggregate.Should().NotBeNull();
}
public void BindApplyWitGroupByWithDeepNavigationShouldReturnApplyClause()
{
IEnumerable <QueryToken> tokens = _parser.ParseApply("groupby((MyDog/FastestOwner/FirstName))");
MetadataBinder metadataBiner = new MetadataBinder(_bindingState);
ApplyBinder binder = new ApplyBinder(metadataBiner.Bind, _bindingState);
ApplyClause actual = binder.BindApply(tokens);
actual.Should().NotBeNull();
actual.Transformations.Should().HaveCount(1);
List <TransformationNode> transformations = actual.Transformations.ToList();
GroupByTransformationNode groupBy = transformations[0] as GroupByTransformationNode;
groupBy.Should().NotBeNull();
groupBy.Kind.Should().Be(TransformationNodeKind.GroupBy);
groupBy.GroupingProperties.Should().NotBeNull();
groupBy.GroupingProperties.Should().HaveCount(1);
groupBy.ChildTransformations.Should().BeNull();
List <GroupByPropertyNode> groupingProperties = groupBy.GroupingProperties.ToList();
GroupByPropertyNode dogNode = groupingProperties[0];
dogNode.Name.Should().Be("MyDog");
dogNode.Expression.Should().BeNull();
dogNode.ChildTransformations.Should().HaveCount(1);
GroupByPropertyNode ownerNode = dogNode.ChildTransformations[0];
ownerNode.Name.Should().Be("FastestOwner");
ownerNode.Expression.Should().BeNull();
ownerNode.ChildTransformations.Should().HaveCount(1);
GroupByPropertyNode nameNode = ownerNode.ChildTransformations[0];
nameNode.Name.Should().Be("FirstName");
nameNode.Expression.Should().NotBeNull();
nameNode.ChildTransformations.Should().BeEmpty();
}
public void BindApplyWitGroupByShouldReturnApplyClause()
{
IEnumerable <QueryToken> tokens = _parser.ParseApply("groupby((UnitPrice, SalePrice))");
ApplyBinder binder = new ApplyBinder(FakeBindMethods.BindSingleComplexProperty, _bindingState);
ApplyClause actual = binder.BindApply(tokens);
Assert.NotNull(actual);
GroupByTransformationNode groupBy = Assert.IsType <GroupByTransformationNode>(Assert.Single(actual.Transformations));
Assert.Equal(TransformationNodeKind.GroupBy, groupBy.Kind);
Assert.NotNull(groupBy.GroupingProperties);
Assert.Equal(2, groupBy.GroupingProperties.Count());
List <GroupByPropertyNode> groupingProperties = groupBy.GroupingProperties.ToList();
VerifyIsFakeSingleValueNode(groupingProperties[0].Expression);
VerifyIsFakeSingleValueNode(groupingProperties[1].Expression);
Assert.Null(groupBy.ChildTransformations);
}
public void BindApplyWitGroupByWithDeepNavigationAndComplexShouldReturnApplyClause()
{
IEnumerable <QueryToken> tokens = _parser.ParseApply("groupby((MyDog/LionWhoAteMe/LionHeartbeat/Frequency))");
MetadataBinder metadataBiner = new MetadataBinder(_bindingState);
ApplyBinder binder = new ApplyBinder(metadataBiner.Bind, _bindingState);
ApplyClause actual = binder.BindApply(tokens);
Assert.NotNull(actual);
var transformation = Assert.Single(actual.Transformations);
GroupByTransformationNode groupBy = Assert.IsType <GroupByTransformationNode>(transformation);
Assert.Equal(TransformationNodeKind.GroupBy, groupBy.Kind);
Assert.Null(groupBy.ChildTransformations);
Assert.NotNull(groupBy.GroupingProperties);
GroupByPropertyNode dogNode = Assert.Single(groupBy.GroupingProperties);
Assert.Equal("MyDog", dogNode.Name);
Assert.Null(dogNode.Expression);
GroupByPropertyNode lionNode = Assert.Single(dogNode.ChildTransformations);
Assert.Equal("LionWhoAteMe", lionNode.Name);
Assert.Null(lionNode.Expression);
GroupByPropertyNode heartBeatNode = Assert.Single(lionNode.ChildTransformations);
Assert.Equal("LionHeartbeat", heartBeatNode.Name);
Assert.Null(heartBeatNode.Expression);
GroupByPropertyNode frequencyNode = Assert.Single(heartBeatNode.ChildTransformations);
Assert.Equal("Frequency", frequencyNode.Name);
Assert.NotNull(frequencyNode.Expression);
Assert.Empty(frequencyNode.ChildTransformations);
}
public void BindVirtualPropertiesAfterCollapseReturnsApplyClause()
{
IEnumerable <QueryToken> tokens =
_parser.ParseApply(
"groupby((ID))/aggregate($count as Count)");
BindingState state = new BindingState(_configuration);
MetadataBinder metadataBiner = new MetadataBinder(_bindingState);
ApplyBinder binder = new ApplyBinder(metadataBiner.Bind, _bindingState);
ApplyClause actual = binder.BindApply(tokens);
actual.Should().NotBeNull();
actual.Transformations.Should().HaveCount(2);
GroupByTransformationNode groupby = actual.Transformations.First() as GroupByTransformationNode;
groupby.Should().NotBeNull();
AggregateTransformationNode aggregate = actual.Transformations.Last() as AggregateTransformationNode;
aggregate.Should().NotBeNull();
aggregate.AggregateExpressions.Should().HaveCount(1);
aggregate.AggregateExpressions.Single().As <AggregateExpression>().Method.ShouldBeEquivalentTo(AggregationMethod.VirtualPropertyCount);
}
public void BindApplyWithEntitySetAggregationReturnApplyClause()
{
IEnumerable <QueryToken> tokens =
_parser.ParseApply(
"groupby((LifeTime),aggregate(MyPaintings($count as Count)))");
BindingState state = new BindingState(_configuration);
MetadataBinder metadataBiner = new MetadataBinder(_bindingState);
ApplyBinder binder = new ApplyBinder(metadataBiner.Bind, _bindingState);
ApplyClause actual = binder.BindApply(tokens);
Assert.NotNull(actual);
Assert.NotNull(actual.Transformations);
GroupByTransformationNode groupBy = Assert.IsType <GroupByTransformationNode>(Assert.Single(actual.Transformations));
Assert.NotNull(groupBy.GroupingProperties);
AggregateTransformationNode aggregate = Assert.IsType <AggregateTransformationNode>(groupBy.ChildTransformations);
Assert.NotNull(aggregate.AggregateExpressions);
Assert.IsType <EntitySetAggregateExpression>(Assert.Single(aggregate.AggregateExpressions));
}
public QueryGrouping Parse()
{
GroupByTransformationNode gnode = null;
foreach (var x in node.Transformations)
{
if (x.Kind == TransformationNodeKind.GroupBy)
{
gnode = x as GroupByTransformationNode;
break;
}
}
if (gnode == null)
{
return(null);
}
List <string> properties = null;
List <short> types = null;
foreach (var x in gnode.GroupingProperties)
{
PropertyInfo lastProperty;
var property = buildPropertyAccess(x.Expression as SingleValuePropertyAccessNode, out lastProperty);
if (property == null)
{
continue;
}
if (properties == null)
{
properties = new List <string>();
}
if (types == null)
{
types = new List <short>();
}
properties.Add(property);
types.Add(getType(lastProperty));
}
if (properties == null)
{
return(null);
}
var aggregations = new List <QueryAggregation>();
QueryGrouping result = new QueryGrouping
{
Keys = properties,
Aggregations = aggregations,
DateTimeTypes = types
};
if (gnode.ChildTransformations == null || gnode.ChildTransformations.Kind != TransformationNodeKind.Aggregate)
{
return(result);
}
foreach (var x in (gnode.ChildTransformations as AggregateTransformationNode).Expressions)
{
if (x.Expression == null && x.Method != AggregationMethod.CountDistinct)
{
continue;
}
string property = null;
if (x.Expression != null)
{
property = buildPropertyAccess(x.Expression as SingleValuePropertyAccessNode);
if (property == null)
{
continue;
}
}
aggregations.Add(new QueryAggregation
{
Operator = getTransformation(x.Method),
Property = property,
Alias = x.Alias,
IsCount = x.Method == AggregationMethod.CountDistinct
});
}
return(result);
}