public MetadataAttributeUsage AddMetadataAtributeUsage(MetadataPackage package, MetadataAttribute attribute, string label, string description, int minCardinality, int maxCardinality)
{
Contract.Requires(package != null && package.Id >= 0);
Contract.Requires(attribute != null && attribute.Id >= 0);
Contract.Ensures(Contract.Result<MetadataAttributeUsage>() != null && Contract.Result<MetadataAttributeUsage>().Id >= 0);
MetadataPackageRepo.Reload(package);
MetadataPackageRepo.LoadIfNot(package.MetadataAttributeUsages);
int count = 0;
try
{
count = (from v in package.MetadataAttributeUsages
where v.MetadataAttribute.Id.Equals(attribute.Id)
select v
)
.Count();
}
catch { }
MetadataAttributeUsage usage = new MetadataAttributeUsage()
{
MetadataPackage = package,
MetadataAttribute = attribute,
// if there is no label provided, use the attribute name and a sequence number calculated by the number of occurrences of that attribute in the current structure
Label = !string.IsNullOrWhiteSpace(label) ? label : (count <= 0 ? attribute.Name : string.Format("{0} ({1})", attribute.Name, count)),
Description = description,
MinCardinality = minCardinality,
MaxCardinality = maxCardinality,
};
package.MetadataAttributeUsages.Add(usage);
attribute.UsedIn.Add(usage);
using (IUnitOfWork uow = this.GetUnitOfWork())
{
IRepository<MetadataAttributeUsage> repo = uow.GetRepository<MetadataAttributeUsage>();
repo.Put(usage);
uow.Commit();
}
return (usage);
}
public MetadataAttribute Update(MetadataAttribute entity)
{
Contract.Requires(entity != null, "provided entity can not be null");
Contract.Requires(entity.Id >= 0, "provided entity must have a permanent ID");
Contract.Ensures(Contract.Result<MetadataAttribute>() != null && Contract.Result<MetadataAttribute>().Id >= 0, "No entity is persisted!");
using (IUnitOfWork uow = this.GetUnitOfWork())
{
IRepository<MetadataAttribute> repo = uow.GetRepository<MetadataAttribute>();
repo.Put(entity); // Merge is required here!!!!
uow.Commit();
}
return (entity);
}
private RangeConstraint GetRangeConstraint(double min, double max,string description, bool negated, bool lowerBoundIncluded, bool upperBoundIncluded, MetadataAttribute attr)
{
RangeConstraint constraint = new RangeConstraint(ConstraintProviderSource.Internal, "", "en-US", description, negated, null, null, null, min, lowerBoundIncluded, max, upperBoundIncluded);
dataContainerManager.AddConstraint(constraint, attr);
return constraint;
}
/// <summary>
/// Deletes the saved <paramref name="entity"/> from the database. The entity should not be a built-in one.
/// </summary>
/// <param name="entity"></param>
/// <returns>true if successful, false otherwise.</returns>
/// <remarks>If by deleting the <paramref name="entity"/> any other compound attribute will have less than 2 members, the deletion fails.</remarks>
public bool Delete(MetadataAttribute entity)
{
Contract.Requires(entity != null);
Contract.Requires(entity.Id >= 0);
Contract.Requires(entity.IsBuiltIn == false);
// check whether this attribute is used in any compound and if yes, those compounds have enough members after the deletion!
var q = from compound in MetadataCompoundAttributeRepo.Query()
from usage in compound.MetadataNestedAttributeUsages
// whether the compound is linked to entity and whether deleting entity causes the compound to have less than two members
where usage.Member == entity && compound.MetadataNestedAttributeUsages.Count() <= 2
select compound;
int cnt = 0;
if ((cnt = q.Count()) > 0)
{
if(cnt ==1 )
throw new Exception(string.Format("Deletion failed! Attribute {0} is used in {1} compound attribute that has less than 3 members. Compound attributes should have at least 2 members, invariantly.", entity.Id, cnt));
else
throw new Exception(string.Format("Deletion failed! Attribute {0} is used in {1} compound attributes that have less than 3 members. Compound attributes should have at least 2 members, invariantly.", entity.Id, cnt));
}
using (IUnitOfWork uow = this.GetUnitOfWork())
{
IRepository<MetadataAttribute> repo = uow.GetRepository<MetadataAttribute>();
entity = repo.Reload(entity);
repo.LoadIfNot(entity.ExtendedProperties);
entity.ExtendedProperties.Clear();
repo.Delete(entity);
uow.Commit();
}
// if any problem was detected during the commit, an exception will be thrown!
return (true);
}
private PatternConstraint GetPatternConstraint(string patternString, string description,bool negated, MetadataAttribute attr)
{
PatternConstraint constraint = new PatternConstraint(ConstraintProviderSource.Internal, "", "en-US", description, negated, null, null, null, patternString, false);
dataContainerManager.AddConstraint(constraint, attr);
return constraint;
}
private DomainConstraint GetDomainConstraint(XmlSchemaObject restriction, MetadataAttribute attr, string restrictionDescription)
{
XmlSchemaObjectCollection facets = new XmlSchemaObjectCollection();
if (restriction is XmlSchemaSimpleTypeRestriction)
facets = ((XmlSchemaSimpleTypeRestriction)restriction).Facets;
if (restriction is XmlSchemaSimpleContentRestriction)
facets = ((XmlSchemaSimpleContentRestriction)restriction).Facets;
List<DomainItem> items = new List<DomainItem>();
foreach (XmlSchemaEnumerationFacet facet in facets)
{
if (facet != null)
items.Add(new DomainItem(){Key = facet.Value, Value = facet.Value });
}
DomainConstraint domainConstraint = new DomainConstraint(ConstraintProviderSource.Internal, "", "en-US", restrictionDescription, false, null, null, null, items);
domainConstraint.Materialize();
dataContainerManager.AddConstraint(domainConstraint,attr);
return domainConstraint;
}
private List<Constraint> ConvertToConstraints(XmlSchemaObject restriction, MetadataAttribute attr)
{
List<Constraint> constraints = new List<Constraint>();
/// XmlSchemaSimpleTypeRestriction
if (restriction is XmlSchemaSimpleTypeRestriction)
{
XmlSchemaSimpleTypeRestriction simpleTypeRestriction = (XmlSchemaSimpleTypeRestriction)restriction;
// if content of simpletype is a restriction
if (restriction != null)
{
// if the simpletype is a domin constraint
if (XmlSchemaUtility.IsEnumerationType(simpleTypeRestriction))
{
constraints.Add(GetDomainConstraint(simpleTypeRestriction, attr, GetDescription(simpleTypeRestriction.Annotation)));
}
else
{
foreach (XmlSchemaObject facet in simpleTypeRestriction.Facets)
{
Constraint c = ConvertFacetToConstraint(facet, attr, constraints);
if (c != null)
constraints.Add(c);
}
}
}
}
/// XmlSchemaSimpleContentRestriction
if (restriction is XmlSchemaSimpleContentRestriction)
{
XmlSchemaSimpleContentRestriction simpleContentRestriction = (XmlSchemaSimpleContentRestriction)restriction;
// if content of simpletype is a restriction
if (restriction != null)
{
// if the simpletype is a domin constraint
if (XmlSchemaUtility.IsEnumerationType(simpleContentRestriction))
{
constraints.Add(GetDomainConstraint(simpleContentRestriction, attr, GetDescription(simpleContentRestriction.Annotation)));
}
else
{
foreach (XmlSchemaObject facet in simpleContentRestriction.Facets)
{
Constraint c = ConvertFacetToConstraint(facet, attr, constraints);
if (c != null)
constraints.Add(c);
}
}
}
}
return constraints;
}
/// <summary>
/// length, minLength,maxLength,pattern,enumeration,whiteSpace,maxInclusive,maxExclusive,minExclusive,minInclusive,totalDigits,fractionDigits
/// </summary>
/// <param name="facet"></param>
/// <returns></returns>
private Constraint ConvertFacetToConstraint(XmlSchemaObject facet, MetadataAttribute attr, List<Constraint> constraints)
{
#region pattern constraints
//if (facet is XmlSchemaWhiteSpaceFacet)
//{
// XmlSchemaWhiteSpaceFacet defFacet = (XmlSchemaWhiteSpaceFacet)facet;
// return GetPatternConstraint(" ", GetDescription(defFacet.Annotation), true, attr);
//}
if (facet is XmlSchemaPatternFacet)
{
XmlSchemaPatternFacet defFacet = (XmlSchemaPatternFacet)facet;
return GetPatternConstraint(defFacet.Value, GetDescription(defFacet.Annotation), false ,attr);
}
#endregion
#region range constraints
if (facet is XmlSchemaLengthFacet)
{
XmlSchemaLengthFacet defFacet = (XmlSchemaLengthFacet)facet;
if (!IsRangeExist(constraints))
{
return GetRangeConstraint(Convert.ToDouble(defFacet.Value), Convert.ToDouble(defFacet.Value), GetDescription(defFacet.Annotation), false, true, true, attr);
}
else
{
double value = Convert.ToDouble(defFacet.Value);
RangeConstraint rc = GetRangeConstraint(constraints);
dataContainerManager.RemoveConstraint(rc);
// if value is bigger then Lowerbound us value
if (rc.Lowerbound < value) rc.Lowerbound = value;
// if value is smaller then Upperbound us value
if (rc.Upperbound > value) rc.Upperbound = value;
rc.LowerboundIncluded = true;
rc.UpperboundIncluded = true;
constraints.Remove(rc);
return GetRangeConstraint(rc.Lowerbound, rc.Upperbound, GetDescription(defFacet.Annotation), false, rc.LowerboundIncluded, rc.UpperboundIncluded, attr);
}
}
if (facet is XmlSchemaMinLengthFacet)
{
XmlSchemaMinLengthFacet defFacet = (XmlSchemaMinLengthFacet)facet;
if (!IsRangeExist(constraints))
{
return GetRangeConstraint(Convert.ToDouble(defFacet.Value), double.MaxValue, GetDescription(defFacet.Annotation), false, true, true, attr);
}
else
{
double value = Convert.ToDouble(defFacet.Value);
RangeConstraint rc = GetRangeConstraint(constraints);
dataContainerManager.RemoveConstraint(rc);
// if value is bigger then Lowerbound us value
if (rc.Lowerbound < value) rc.Lowerbound = value;
rc.LowerboundIncluded = true;
constraints.Remove(rc);
return GetRangeConstraint(rc.Lowerbound, rc.Upperbound, GetDescription(defFacet.Annotation), false, rc.LowerboundIncluded, rc.UpperboundIncluded, attr);
}
}
if (facet is XmlSchemaMaxLengthFacet)
{
XmlSchemaMaxLengthFacet defFacet = (XmlSchemaMaxLengthFacet)facet;
if (!IsRangeExist(constraints))
{
return GetRangeConstraint(double.MinValue, Convert.ToDouble(defFacet.Value), GetDescription(defFacet.Annotation), false, true, true, attr);
}
else
{
double value = Convert.ToDouble(defFacet.Value);
RangeConstraint rc = GetRangeConstraint(constraints);
dataContainerManager.RemoveConstraint(rc);
// if value is smaller then Upperbound us value
if (rc.Upperbound > value) rc.Upperbound = value;
rc.UpperboundIncluded = true;
constraints.Remove(rc);
return GetRangeConstraint(rc.Lowerbound, rc.Upperbound, GetDescription(defFacet.Annotation), false, rc.LowerboundIncluded, rc.UpperboundIncluded, attr);
}
}
if (facet is XmlSchemaMaxInclusiveFacet)
{
XmlSchemaMaxInclusiveFacet defFacet = (XmlSchemaMaxInclusiveFacet)facet;
if (!IsRangeExist(constraints))
{
return GetRangeConstraint(0, Convert.ToDouble(defFacet.Value), GetDescription(defFacet.Annotation), false, true, true, attr);
}
else
{
double value = Convert.ToDouble(defFacet.Value);
RangeConstraint rc = GetRangeConstraint(constraints);
dataContainerManager.RemoveConstraint(rc);
// if value is smaller then Upperbound us value
if (rc.Upperbound > value) rc.Upperbound = value;
rc.UpperboundIncluded = true;
constraints.Remove(rc);
return GetRangeConstraint(rc.Lowerbound, rc.Upperbound, GetDescription(defFacet.Annotation), false, rc.LowerboundIncluded, rc.UpperboundIncluded, attr);
}
}
if (facet is XmlSchemaMinInclusiveFacet)
{
XmlSchemaMinInclusiveFacet defFacet = (XmlSchemaMinInclusiveFacet)facet;
if (!IsRangeExist(constraints))
{
return GetRangeConstraint(Convert.ToDouble(defFacet.Value), int.MaxValue, GetDescription(defFacet.Annotation), false, true, true, attr);
}
else
{
double value = Convert.ToDouble(defFacet.Value);
RangeConstraint rc = GetRangeConstraint(constraints);
dataContainerManager.RemoveConstraint(rc);
// if value is bigger then Lowerbound us value
if (rc.Lowerbound < value) rc.Lowerbound = value;
rc.LowerboundIncluded = true;
constraints.Remove(rc);
return GetRangeConstraint(rc.Lowerbound, rc.Upperbound, GetDescription(defFacet.Annotation), false, rc.LowerboundIncluded, rc.UpperboundIncluded, attr);
}
}
if (facet is XmlSchemaMaxExclusiveFacet)
{
XmlSchemaMaxExclusiveFacet defFacet = (XmlSchemaMaxExclusiveFacet)facet;
if (!IsRangeExist(constraints))
{
return GetRangeConstraint(0, Convert.ToDouble(defFacet.Value), GetDescription(defFacet.Annotation), false, true, false, attr);
}
else
{
double value = Convert.ToDouble(defFacet.Value);
RangeConstraint rc = GetRangeConstraint(constraints);
dataContainerManager.RemoveConstraint(rc);
// if value is smaller then Upperbound us value
if (rc.Upperbound > value) rc.Upperbound = value;
rc.UpperboundIncluded = false;
constraints.Remove(rc);
return GetRangeConstraint(rc.Lowerbound, rc.Upperbound, GetDescription(defFacet.Annotation), false, rc.LowerboundIncluded, rc.UpperboundIncluded, attr);
}
}
if (facet is XmlSchemaMinExclusiveFacet)
{
XmlSchemaMinExclusiveFacet defFacet = (XmlSchemaMinExclusiveFacet)facet;
if (!IsRangeExist(constraints))
{
return GetRangeConstraint(Convert.ToDouble(defFacet.Value), int.MaxValue, GetDescription(defFacet.Annotation), false, false, true, attr);
}
else
{
double value = Convert.ToDouble(defFacet.Value);
RangeConstraint rc = GetRangeConstraint(constraints);
dataContainerManager.RemoveConstraint(rc);
// if value is bigger then Lowerbound us value
if (rc.Lowerbound < value) rc.Lowerbound = value;
rc.LowerboundIncluded = false;
constraints.Remove(rc);
return GetRangeConstraint(rc.Lowerbound, rc.Upperbound, GetDescription(defFacet.Annotation), false, rc.LowerboundIncluded, rc.UpperboundIncluded, attr);
}
}
#endregion
if (facet is XmlSchemaTotalDigitsFacet)
{
}
if (facet is XmlSchemaFractionDigitsFacet)
{
}
/* special case
if (facet is XmlSchemaEnumerationFacet)
{
return GetDomainConstraint((XmlSchemaEnumerationFacet)facet);
}
* */
return null;
}
private static List<object> createDomainContraintList(MetadataAttribute attribute)
{
List<object> list = new List<object>();
foreach (Constraint constraint in attribute.Constraints)
{
if (constraint is DomainConstraint)
{
DomainConstraint domainConstraint = (DomainConstraint)constraint;
domainConstraint.Materialize();
domainConstraint.Items.ForEach(i => list.Add(i.Value));
}
}
return list;
}