public void ProjectSimpleAttributes()
{
// Asserts if the query result for a relationship join operation is equal
// to a handcrafted query
RequiredDataContainer ModelData = ProjectDataProvider.SimpleModel();
// Load handcrafted query
string HandcraftedQuery = Utils.ReadQueryFromFile("HandcraftedQueries/projectQuerySimple.js");
// Assert if the handcrafted query is not null
Assert.IsNotNull(HandcraftedQuery);
// Prepare query generator
QueryableEntity Person = new QueryableEntity(ModelData.EntityRelationshipModel.FindByName("Person"));
List <ProjectArgument> Arguments = new List <ProjectArgument>();
Arguments.Add(new ProjectArgument(Person.GetAttribute("personId"), Person, new BooleanExpr(false)));
Arguments.Add(new ProjectArgument(Person.GetAttribute("name"), Person, new BooleanExpr(true)));
Arguments.Add(new ProjectArgument(Person.GetAttribute("age"), Person, new BooleanExpr(true)));
ProjectStage ProjectOp = new ProjectStage(Arguments, ModelData.ERMongoMapping);
List <AlgebraOperator> OpList = new List <AlgebraOperator> {
ProjectOp
};
FromArgument StartArg = new FromArgument(new QueryableEntity(ModelData.EntityRelationshipModel.FindByName("Person")),
ModelData.ERMongoMapping);
QueryGenerator QueryGen = new QueryGenerator(StartArg, OpList);
string GeneratedQuery = QueryGen.Run();
// Assert if generated query is not null
Assert.IsNotNull(GeneratedQuery);
// Run Queries
QueryRunner Runner = new QueryRunner("mongodb://localhost:27017", "ceManyToMany2");
string HandcraftedResult = Runner.GetJSON(HandcraftedQuery);
string GeneratedResult = Runner.GetJSON(GeneratedQuery);
// Check if either result is null
Assert.IsNotNull(HandcraftedResult);
Assert.IsNotNull(GeneratedResult);
// Check if both results are equal
Assert.IsTrue(JToken.DeepEquals(JToken.Parse(HandcraftedResult), JToken.Parse(GeneratedResult)));
}
public void ProjectComputedEntity()
{
// Asserts if the query result for a relationship join operation is equal
// to a handcrafted query
RequiredDataContainer ModelData = ProjectDataProvider.ComputedEntityData();
// Load handcrafted query
string HandcraftedQuery = Utils.ReadQueryFromFile("HandcraftedQueries/projectQuery.js");
// Assert if the handcrafted query is not null
Assert.IsNotNull(HandcraftedQuery);
// Prepare query generator
ComputedEntity CarRepairedByGarage = new ComputedEntity("CarManufacturedBy",
new QueryableEntity((Entity)ModelData.EntityRelationshipModel.FindByName("Car"), "car"),
(Relationship)ModelData.EntityRelationshipModel.FindByName("ManufacturedBy"),
new List <QueryableEntity> {
new QueryableEntity((Entity)ModelData.EntityRelationshipModel.FindByName("Manufacturer"), "manufacturer")
});
RelationshipJoinOperator RJoinOp = new RelationshipJoinOperator(
new QueryableEntity((Entity)ModelData.EntityRelationshipModel.FindByName("Person"), "person"),
(Relationship)ModelData.EntityRelationshipModel.FindByName("Owns"),
new List <QueryableEntity> {
new QueryableEntity(CarRepairedByGarage)
},
ModelData.ERMongoMapping);
VirtualMap VMap = RJoinOp.ComputeVirtualMap();
Dictionary <string, ProjectExpression> ProjectPersonAttrs = new Dictionary <string, ProjectExpression>();
QueryableEntity Person = new QueryableEntity(ModelData.EntityRelationshipModel.FindByName("Person"));
QueryableEntity Car = new QueryableEntity(ModelData.EntityRelationshipModel.FindByName("Car"));
QueryableEntity Manufacturer = new QueryableEntity(ModelData.EntityRelationshipModel.FindByName("Manufacturer"));
List <ProjectArgument> ProjectArguments = new List <ProjectArgument>();
ProjectArguments.Add(new ProjectArgument(Person.GetAttribute("name"), Person, new BooleanExpr(true)));
ProjectArguments.Add(new ProjectArgument(Car.GetAttribute("model"), Car, new BooleanExpr(true)));
ProjectArguments.Add(new ProjectArgument(Car.GetAttribute("year"), Car, new BooleanExpr(true)));
ProjectArguments.Add(new ProjectArgument(Manufacturer.GetAttribute("name"), Manufacturer, new BooleanExpr(true)));
ProjectStage ProjectOp = new ProjectStage(ProjectArguments, VMap);
List <AlgebraOperator> OpList = new List <AlgebraOperator> {
RJoinOp, ProjectOp
};
FromArgument StartArg = new FromArgument(new QueryableEntity(ModelData.EntityRelationshipModel.FindByName("Person")),
ModelData.ERMongoMapping);
QueryGenerator QueryGen = new QueryGenerator(StartArg, OpList);
string GeneratedQuery = QueryGen.Run();
// Assert if generated query is not null
Assert.IsNotNull(GeneratedQuery);
// Run Queries
QueryRunner Runner = new QueryRunner("mongodb://localhost:27017", "ceManyToMany2");
string HandcraftedResult = Runner.GetJSON(HandcraftedQuery);
string GeneratedResult = Runner.GetJSON(GeneratedQuery);
// Check if either result is null
Assert.IsNotNull(HandcraftedResult);
Assert.IsNotNull(GeneratedResult);
// Check if both results are equal
Assert.IsTrue(JToken.DeepEquals(JToken.Parse(HandcraftedResult), JToken.Parse(GeneratedResult)));
}
