/// <summary>
/// Returns the <see cref="SpecRelation"/> representation of a <see cref="BinaryRelationship"/>-<see cref="BinaryRelationshipRule"/> combination
/// </summary>
/// <param name="relationship">
/// The <see cref="BinaryRelationship"/>
/// </param>
/// <param name="relationGroupType">The associated <see cref="RelationGroupType"/></param>
/// <param name="source">The <see cref="SpecObject"/> source</param>
/// <param name="target">The <see cref="SpecObject"/> target</param>
/// <returns>
/// The <see cref="SpecRelation"/>
/// </returns>
public RelationGroup ToReqIfRelationGroup(BinaryRelationship relationship, RelationGroupType relationGroupType, Specification source, Specification target)
{
if (relationship == null)
{
throw new ArgumentNullException("relationship");
}
var relationGroup = new RelationGroup
{
Identifier = relationship.Iid.ToString(),
LastChange = DateTime.UtcNow,
LongName = relationship.UserFriendlyName
};
relationGroup.Type = relationGroupType;
this.SetCommonAttributeValues(relationGroup, relationship);
foreach (var parameterValue in relationship.ParameterValue)
{
var attributeDef = relationGroupType.SpecAttributes.Single(x => x.DatatypeDefinition.Identifier == parameterValue.ParameterType.Iid.ToString());
var value = this.ToReqIfAttributeValue(parameterValue.ParameterType, attributeDef, parameterValue.Value, parameterValue.Scale);
relationGroup.Values.Add(value);
}
relationGroup.SourceSpecification = source;
relationGroup.TargetSpecification = target;
return(relationGroup);
}
public RelationGroup FindRelations(
IEnumerable <IIndex> indexes,
bool referring = true,
bool referred = true)
{
RelationGroup relations = new RelationGroup();
foreach (IIndex index in indexes)
{
if (referring)
{
foreach (var relation in this.database.Tables.GetReferringRelations(index))
{
if (!relations.Referring.Contains(relation))
{
relations.Referring.Add(relation);
}
}
}
if (referred)
{
foreach (var relation in this.database.Tables.GetReferredRelations(index))
{
if (!relations.Referred.Contains(relation))
{
relations.Referred.Add(relation);
}
}
}
}
return(relations);
}
public IEnumerable <T> ExecuteDelete <T>(
IExecutionPlan <IEnumerable <T> > plan,
IExecutionContext context)
where T : class
{
var helper = new ExecutionHelper(this.Database);
var table = this.Database.Tables.FindTable <T>();
var cascadedTables = helper.GetCascadedTables(table);
var allTables = cascadedTables.Concat(new[] { table }).ToArray();
// Find relations
// Do not add referred relations!
RelationGroup allRelations =
helper.FindRelations(allTables.SelectMany(x => x.Indexes), referred: false);
this.AcquireWriteLock(table, context);
var storedEntities = this.Query(plan, table, context);
this.AcquireWriteLock(cascadedTables, context);
this.LockRelatedTables(allRelations, context, except: allTables);
using (AtomicLogScope log = this.StartAtomicLogOperation(context))
{
IDeletePrimitive primitive = new DeletePrimitive(this.Database, log);
primitive.Delete(storedEntities);
log.Complete();
}
return(storedEntities.ToArray());
}
public void VerifyThatTheSpectTypeCanBeSet()
{
var relationGroupType = new RelationGroupType();
var relationGroup = new RelationGroup();
relationGroup.SpecType = relationGroupType;
Assert.AreEqual(relationGroupType, relationGroup.SpecType);
}
public void VerifyThatSettingAnIncorrectSpecTypeThrowsException()
{
var specificationType = new SpecificationType();
var relationGroup = new RelationGroup();
Assert.That(() => relationGroup.SpecType = specificationType,
Throws.TypeOf <ArgumentException>()
.With.Message.EqualTo("specType must of type RelationGroupType"));
}
public void Verify_That_The_SpectType_Can_Be_Set()
{
var relationGroupType = new RelationGroupType();
var relationGroup = new RelationGroup();
relationGroup.SpecType = relationGroupType;
Assert.AreEqual(relationGroupType, relationGroup.SpecType);
}
public IEnumerable <ITable> GetRelatedTables(
RelationGroup relations,
params ITable[] except)
{
return
(relations.Referring.Select(x => x.ForeignTable)
.Concat(relations.Referred.Select(x => x.PrimaryTable))
.Distinct()
.Except(except));
}
private void LockRelatedTables(
RelationGroup relations,
IExecutionContext context,
params ITable[] except)
{
var helper = new ExecutionHelper(this.Database);
ITable[] relatedTables = helper.GetRelatedTables(relations, except).ToArray();
this.LockRelatedTables(relatedTables, context);
}
public void Verify_That_WriteXmlAsync_Throws_Exception_When_Type_Is_Null()
{
var cancellationTokenSource = new CancellationTokenSource();
var relationGroup = new RelationGroup();
// Type is not set
using (var memoryStream = new MemoryStream())
{
using (var writer = XmlWriter.Create(memoryStream, new XmlWriterSettings {
Indent = true
}))
{
Assert.That(async() => await relationGroup.WriteXmlAsync(writer, cancellationTokenSource.Token),
Throws.TypeOf <SerializationException>()
.With.Message.EqualTo("The Type property of RelationGroup : may not be null"));
}
}
// Source specification is not set
var relationGroupType = new RelationGroupType();
relationGroup.Type = relationGroupType;
using (var memoryStream = new MemoryStream())
{
using (var writer = XmlWriter.Create(memoryStream, new XmlWriterSettings {
Indent = true
}))
{
Assert.That(async() => await relationGroup.WriteXmlAsync(writer, cancellationTokenSource.Token),
Throws.TypeOf <SerializationException>()
.With.Message.EqualTo("The SourceSpecification property of RelationGroup : may not be null"));
}
}
// target specification is not set
var sourceSpecification = new Specification();
relationGroup.SourceSpecification = sourceSpecification;
using (var memoryStream = new MemoryStream())
{
using (var writer = XmlWriter.Create(memoryStream, new XmlWriterSettings {
Indent = true
}))
{
Assert.That(async() => await relationGroup.WriteXmlAsync(writer, cancellationTokenSource.Token),
Throws.TypeOf <SerializationException>()
.With.Message.EqualTo("The TargetSpecification property of RelationGroup : may not be null"));
}
}
}
public void VerifyThatWriteXmlThrowsExceptionWhenTypeIsNull()
{
var relationGroup = new RelationGroup();
// Type is not set
using (var fs = new FileStream("test.xml", FileMode.Create))
{
using (var writer = XmlWriter.Create(fs, new XmlWriterSettings {
Indent = true
}))
{
Assert.That(() => relationGroup.WriteXml(writer),
Throws.TypeOf <SerializationException>()
.With.Message.EqualTo("The Type property of RelationGroup : may not be null"));
}
}
// Source specification is not set
var relationGroupType = new RelationGroupType();
relationGroup.Type = relationGroupType;
using (var fs = new FileStream("test.xml", FileMode.Create))
{
using (var writer = XmlWriter.Create(fs, new XmlWriterSettings {
Indent = true
}))
{
Assert.That(() => relationGroup.WriteXml(writer),
Throws.TypeOf <SerializationException>()
.With.Message.EqualTo("The SourceSpecification property of RelationGroup : may not be null"));
}
}
// target specification is not set
var sourceSpecification = new Specification();
relationGroup.SourceSpecification = sourceSpecification;
using (var fs = new FileStream("test.xml", FileMode.Create))
{
using (var writer = XmlWriter.Create(fs, new XmlWriterSettings {
Indent = true
}))
{
Assert.That(() => relationGroup.WriteXml(writer),
Throws.TypeOf <SerializationException>()
.With.Message.EqualTo("The TargetSpecification property of RelationGroup : may not be null"));
}
}
}
public void Delete <T>(IList <T> storedEntities) where T : class
{
ExecutionHelper helper = new ExecutionHelper(this.database);
ITable <T> table = this.database.Tables.FindTable <T>();
// Find relations
// Do not add referred relations!
RelationGroup relations =
helper.FindRelations(table.Indexes, referred: false);
// Find referring entities
var referringEntities =
helper.FindReferringEntities <T>(storedEntities, relations.Referring);
// Delete invalid index records
for (int i = 0; i < storedEntities.Count; i++)
{
T storedEntity = storedEntities[i];
foreach (IIndex <T> index in table.Indexes)
{
index.Delete(storedEntity);
log.Log.WriteIndexDelete(index, storedEntity);
}
}
var cascadedRelations = relations.Referring.Where(x => x.Options.CascadedDeletion);
foreach (IRelationInternal index in cascadedRelations)
{
var entities = referringEntities[index];
if (entities.Count == 0)
{
continue;
}
index.CascadedDelete(entities, this);
// At this point these entities should have been removed from the database
// In order to avoid foreign key validation, clear the collection
//
// TODO: It might be better to do foreign key validation from the
// other direction: check if anything refers storedEntities
entities.Clear();
}
// Validate the entities that are referring to the deleted entities
helper.ValidateForeignKeys(relations.Referring, referringEntities);
}
/// <summary>
/// Creates a <see cref="RelationGroup"/>
/// </summary>
private void CreateRelationGroup()
{
var reqIfContent = this.reqIF.CoreContent.SingleOrDefault();
var relationGroupType = (RelationGroupType)reqIfContent.SpecTypes.SingleOrDefault(x => x.GetType() == typeof(RelationGroupType));
var relationGroup = new RelationGroup();
relationGroup.Identifier = "relationgroup-1";
relationGroup.LastChange = DateTime.Parse("2015-12-01");
relationGroup.LongName = "relationgroup 1";
relationGroup.Type = relationGroupType;
var sourceSpecification = reqIfContent.Specifications.SingleOrDefault(x => x.Identifier == "specification-1");
var targetSpecification = reqIfContent.Specifications.SingleOrDefault(x => x.Identifier == "specification-2");
relationGroup.SourceSpecification = sourceSpecification;
relationGroup.TargetSpecification = targetSpecification;
reqIfContent.SpecRelationGroups.Add(relationGroup);
}
/// <summary>
/// Creates a <see cref="BinaryRelationship"/> from a <see cref="RelationGroup"/>
/// </summary>
/// <param name="relation">The <see cref="RelationGroup"/></param>
/// <returns></returns>
private BinaryRelationship CreateBinaryRelationship(RelationGroup relation)
{
var type = this.typeMap[relation.Type];
var relationship = new BinaryRelationship
{
Owner = this.Owner
};
RequirementsSpecification source;
RequirementsSpecification target;
if (!this.specificationMap.TryGetValue(relation.SourceSpecification, out source) || !this.specificationMap.TryGetValue(relation.TargetSpecification, out target))
{
throw new InvalidOperationException("The source or target cannot be null. Verify that the ReqIF input is valid.");
}
relationship.Source = source;
relationship.Target = target;
relationship.Category.AddRange(type.Categories);
foreach (var value in relation.Values)
{
var attributeMap = type.AttributeDefinitionMap.SingleOrDefault(x => x.AttributeDefinition == value.AttributeDefinition);
if (attributeMap == null || attributeMap.MapKind == AttributeDefinitionMapKind.NONE)
{
continue;
}
switch (attributeMap.MapKind)
{
case AttributeDefinitionMapKind.PARAMETER_VALUE:
this.SetParameterValue(relationship, value);
break;
}
}
this.relationGroupMap.Add(relation, relationship);
return(relationship);
}
public void ExecuteInsert <T>(T entity, IExecutionContext context)
where T : class
{
var helper = new ExecutionHelper(this.Database);
var table = this.Database.Tables.FindTable <T>();
table.Contraints.Apply(entity, context);
// Find referred relations
// Do not add referring relations!
RelationGroup relations = helper.FindRelations(table.Indexes, referring: false);
// Acquire locks
this.AcquireWriteLock(table, context);
this.LockRelatedTables(relations, context, table);
try
{
// Validate the inserted record
helper.ValidateForeignKeys(relations.Referred, new[] { entity });
using (AtomicLogScope logScope = this.StartAtomicLogOperation(context))
{
foreach (IIndex <T> index in table.Indexes)
{
index.Insert(entity);
logScope.Log.WriteIndexInsert(index, entity);
}
logScope.Complete();
}
}
finally
{
this.ReleaseWriteLock(table, context);
}
}
public IEnumerable <T> ExecuteUpdater <T>(
IExecutionPlan <IEnumerable <T> > plan,
IUpdater <T> updater,
IExecutionContext context)
where T : class
{
var helper = new ExecutionHelper(this.Database);
var table = this.Database.Tables.FindTable <T>();
var cloner = EntityPropertyCloner <T> .Instance;
// Determine which indexes are affected by the change
// If the key of an index containes a changed property, it is affected
IList <IIndex <T> > affectedIndexes =
helper.FindAffectedIndexes(table, updater.Changes);
// Find relations
// Add both referring and referred relations!
RelationGroup relations = helper.FindRelations(affectedIndexes);
this.AcquireWriteLock(table, context);
var storedEntities = Query(plan, table, context);
// Lock related tables (based on found relations)
this.LockRelatedTables(relations, context, table);
// Find the entities referring the entities that are about to be updated
var referringEntities =
helper.FindReferringEntities(storedEntities, relations.Referring);
using (AtomicLogScope logScope = this.StartAtomicLogOperation(context))
{
// Delete invalid index records (keys are invalid)
for (int i = 0; i < storedEntities.Count; i++)
{
T storedEntity = storedEntities[i];
foreach (IIndex <T> index in affectedIndexes)
{
index.Delete(storedEntity);
logScope.Log.WriteIndexDelete(index, storedEntity);
}
}
// Modify entity properties
for (int i = 0; i < storedEntities.Count; i++)
{
T storedEntity = storedEntities[i];
// Create backup
T backup = Activator.CreateInstance <T>();
cloner.Clone(storedEntity, backup);
T newEntity = updater.Update(storedEntity);
// Apply contraints on the entity
table.Contraints.Apply(newEntity, context);
// Update entity
cloner.Clone(newEntity, storedEntity);
logScope.Log.WriteEntityUpdate(cloner, storedEntity, backup);
}
// Insert to indexes the entities were removed from
for (int i = 0; i < storedEntities.Count; i++)
{
T storedEntity = storedEntities[i];
foreach (IIndex <T> index in affectedIndexes)
{
index.Insert(storedEntity);
logScope.Log.WriteIndexInsert(index, storedEntity);
}
}
// Validate the updated entities
helper.ValidateForeignKeys(relations.Referred, storedEntities);
// Validate the entities that were referring to the old version of entities
helper.ValidateForeignKeys(relations.Referring, referringEntities);
logScope.Complete();
}
return(storedEntities);
}
private void SetupReqIf()
{
this.reqIf = new ReqIF();
this.reqIf.Lang = "en";
this.corecontent = new ReqIFContent();
this.reqIf.CoreContent = this.corecontent;
this.stringDatadef = new DatatypeDefinitionString();
this.specificationtype = new SpecificationType();
this.specobjecttype = new SpecObjectType();
this.specrelationtype = new SpecRelationType();
this.relationgrouptype = new RelationGroupType();
this.specAttribute = new AttributeDefinitionString()
{
DatatypeDefinition = this.stringDatadef
};
this.reqAttribute = new AttributeDefinitionString()
{
DatatypeDefinition = this.stringDatadef
};
this.specRelationAttribute = new AttributeDefinitionString()
{
DatatypeDefinition = this.stringDatadef
};
this.relationgroupAttribute = new AttributeDefinitionString()
{
DatatypeDefinition = this.stringDatadef
};
this.specificationtype.SpecAttributes.Add(this.specAttribute);
this.specobjecttype.SpecAttributes.Add(this.reqAttribute);
this.specrelationtype.SpecAttributes.Add(this.specRelationAttribute);
this.relationgrouptype.SpecAttributes.Add(this.relationgroupAttribute);
this.specification1 = new Specification()
{
Type = this.specificationtype
};
this.specification2 = new Specification()
{
Type = this.specificationtype
};
this.specobject1 = new SpecObject()
{
Type = this.specobjecttype
};
this.specobject2 = new SpecObject()
{
Type = this.specobjecttype
};
this.specrelation = new SpecRelation()
{
Type = this.specrelationtype, Source = this.specobject1, Target = this.specobject2
};
this.relationgroup = new RelationGroup()
{
Type = this.relationgrouptype, SourceSpecification = this.specification1, TargetSpecification = this.specification2
};
this.specValue1 = new AttributeValueString()
{
AttributeDefinition = this.specAttribute, TheValue = "spec1"
};
this.specValue2 = new AttributeValueString()
{
AttributeDefinition = this.specAttribute, TheValue = "spec2"
};
this.objectValue1 = new AttributeValueString()
{
AttributeDefinition = this.reqAttribute, TheValue = "req1"
};
this.objectValue2 = new AttributeValueString()
{
AttributeDefinition = this.reqAttribute, TheValue = "req2"
};
this.relationgroupValue = new AttributeValueString()
{
AttributeDefinition = this.relationgroupAttribute, TheValue = "group"
};
this.specrelationValue = new AttributeValueString()
{
AttributeDefinition = this.specRelationAttribute, TheValue = "specrelation"
};
this.specification1.Values.Add(this.specValue1);
this.specification2.Values.Add(this.specValue2);
this.specobject1.Values.Add(this.objectValue1);
this.specobject2.Values.Add(this.objectValue2);
this.specrelation.Values.Add(this.specrelationValue);
this.relationgroup.Values.Add(this.relationgroupValue);
this.corecontent.DataTypes.Add(this.stringDatadef);
this.corecontent.SpecTypes.AddRange(new SpecType[] { this.specobjecttype, this.specificationtype, this.specrelationtype, this.relationgrouptype });
this.corecontent.SpecObjects.AddRange(new SpecObject[] { this.specobject1, this.specobject2 });
this.corecontent.Specifications.AddRange(new Specification[] { this.specification1, this.specification2 });
this.corecontent.SpecRelations.Add(this.specrelation);
this.corecontent.SpecRelationGroups.Add(this.relationgroup);
this.specification1.Children.Add(new SpecHierarchy()
{
Object = this.specobject1
});
this.specification2.Children.Add(new SpecHierarchy()
{
Object = this.specobject2
});
}
