internal override ResolvedAttributeSetBuilder ConstructResolvedAttributes(ResolveOptions resOpt, CdmAttributeContext under = null)
{
// find and cache the complete set of attributes
// attributes definitions originate from and then get modified by subsequent re-defintions from (in this order):
// the datatype used as an attribute, traits applied to that datatype,
// the purpose of the attribute, dynamic traits applied to the attribute.
ResolvedAttributeSetBuilder rasb = new ResolvedAttributeSetBuilder();
rasb.ResolvedAttributeSet.AttributeContext = under;
// add this attribute to the set
// make a new one and apply dynamic traits
ResolvedAttribute newAtt = new ResolvedAttribute(resOpt, this, this.Name, under as CdmAttributeContext);
rasb.OwnOne(newAtt);
ResolvedTraitSet rts = this.FetchResolvedTraits(resOpt);
// this context object holds all of the info about what needs to happen to resolve these attribute
// make a copy and add defaults if missing
CdmAttributeResolutionGuidance resGuideWithDefault;
if (this.ResolutionGuidance != null)
{
resGuideWithDefault = (CdmAttributeResolutionGuidance)this.ResolutionGuidance.Copy(resOpt);
}
else
{
resGuideWithDefault = new CdmAttributeResolutionGuidance(this.Ctx);
}
// renameFormat is not currently supported for type attributes
resGuideWithDefault.renameFormat = null;
resGuideWithDefault.UpdateAttributeDefaults(null, this);
AttributeResolutionContext arc = new AttributeResolutionContext(resOpt, resGuideWithDefault, rts);
// TODO: remove the resolution guidance if projection is being used
// from the traits of the datatype, purpose and applied here, see if new attributes get generated
rasb.ApplyTraits(arc);
rasb.GenerateApplierAttributes(arc, false); // false = don't apply these traits to added things
// this may have added symbols to the dependencies, so merge them
resOpt.SymbolRefSet.Merge(arc.ResOpt.SymbolRefSet);
if (this.Projection != null)
{
ProjectionDirective projDirective = new ProjectionDirective(resOpt, this);
ProjectionContext projCtx = this.Projection.ConstructProjectionContext(projDirective, under, rasb.ResolvedAttributeSet);
ResolvedAttributeSet ras = this.Projection.ExtractResolvedAttributes(projCtx, under);
rasb.ResolvedAttributeSet = ras;
}
return(rasb);
}
internal override ResolvedAttributeSetBuilder ConstructResolvedAttributes(ResolveOptions resOpt, CdmAttributeContext under = null)
{
ResolvedAttributeSetBuilder rasb = new ResolvedAttributeSetBuilder();
CdmAttributeContext allUnder = under;
if (under != null)
{
AttributeContextParameters acpAttGrp = new AttributeContextParameters
{
under = under,
type = CdmAttributeContextType.AttributeGroup,
Name = this.GetName(),
Regarding = this,
IncludeTraits = false
};
under = rasb.ResolvedAttributeSet.CreateAttributeContext(resOpt, acpAttGrp);
}
if (this.Members != null)
{
for (int i = 0; i < this.Members.Count; i++)
{
CdmObjectBase att = this.Members[i] as CdmObjectBase;
AttributeContextParameters acpAtt = null;
if (under != null)
{
acpAtt = new AttributeContextParameters
{
under = under,
type = CdmAttributeContextType.AttributeDefinition,
Name = att.FetchObjectDefinitionName(),
Regarding = att,
IncludeTraits = false
};
}
ResolvedAttributeSet rasFromAtt = att.FetchResolvedAttributes(resOpt, acpAtt);
// before we just merge, need to handle the case of 'attribute restatement' AKA an entity with an attribute having the same name as an attribute
// from a base entity. thing might come out with different names, if they do, then any attributes owned by a similar named attribute before
// that didn't just pop out of that same named attribute now need to go away.
// mark any attributes formerly from this named attribute that don't show again as orphans
rasb.ResolvedAttributeSet.MarkOrphansForRemoval((att as CdmAttributeItem).FetchObjectDefinitionName(), rasFromAtt);
// now merge
rasb.MergeAttributes(rasFromAtt);
}
}
rasb.ResolvedAttributeSet.AttributeContext = allUnder; // context must be the one expected from the caller's pov.
// things that need to go away
rasb.RemoveRequestedAtts();
return(rasb);
}
virtual internal ResolvedAttributeSetBuilder FetchObjectFromCache(ResolveOptions resOpt, AttributeContextParameters acpInContext)
{
const string kind = "rasb";
ResolveContext ctx = this.Ctx as ResolveContext;
string cacheTag = ctx.Corpus.CreateDefinitionCacheTag(resOpt, this, kind, acpInContext != null ? "ctx" : "");
ResolvedAttributeSetBuilder rasbCache = null;
if (cacheTag != null)
{
ctx.AttributeCache.TryGetValue(cacheTag, out rasbCache);
}
return(rasbCache);
}
internal override ResolvedAttributeSetBuilder ConstructResolvedAttributes(ResolveOptions resOpt, CdmAttributeContext under = null)
{
ResolvedAttributeSetBuilder rasb = new ResolvedAttributeSetBuilder();
if (under != null)
{
AttributeContextParameters acpAttGrp = new AttributeContextParameters
{
under = under,
type = CdmAttributeContextType.AttributeGroup,
Name = this.GetName(),
Regarding = this,
IncludeTraits = false
};
under = rasb.ResolvedAttributeSet.CreateAttributeContext(resOpt, acpAttGrp);
}
if (this.Members != null)
{
for (int i = 0; i < this.Members.Count; i++)
{
dynamic att = this.Members.AllItems[i];
CdmAttributeContext attUnder = under;
AttributeContextParameters acpAtt = null;
if (under != null)
{
acpAtt = new AttributeContextParameters
{
under = under,
type = CdmAttributeContextType.AttributeDefinition,
Name = att.FetchObjectDefinitionName(),
Regarding = att,
IncludeTraits = false
};
}
rasb.MergeAttributes(att.FetchResolvedAttributes(resOpt, acpAtt));
}
}
rasb.ResolvedAttributeSet.AttributeContext = under;
// things that need to go away
rasb.RemoveRequestedAtts();
return(rasb);
}
internal override ResolvedAttributeSetBuilder ConstructResolvedAttributes(ResolveOptions resOpt, CdmAttributeContext under = null)
{
// find and cache the complete set of attributes
// attributes definitions originate from and then get modified by subsequent re-definitions from (in this order):
// an extended entity, traits applied to extended entity, exhibited traits of main entity, the (datatype or entity) used as an attribute, traits applied to that datatype or entity,
// the relationsip of the attribute, the attribute definition itself and included attribute groups, dynamic traits applied to the attribute.
this.Rasb = new ResolvedAttributeSetBuilder();
this.Rasb.ResolvedAttributeSet.AttributeContext = under;
if (this.ExtendsEntity != null)
{
CdmObjectReference extRef = this.ExtendsEntityRef;
CdmAttributeContext extendsRefUnder = null;
AttributeContextParameters acpExtEnt = null;
if (under != null)
{
AttributeContextParameters acpExt = new AttributeContextParameters
{
under = under,
type = CdmAttributeContextType.EntityReferenceExtends,
Name = "extends",
Regarding = null,
IncludeTraits = false
};
extendsRefUnder = this.Rasb.ResolvedAttributeSet.CreateAttributeContext(resOpt, acpExt);
}
if (extRef.ExplicitReference != null && extRef.FetchObjectDefinition <CdmObjectDefinition>(resOpt).ObjectType == CdmObjectType.ProjectionDef)
{
// A Projection
CdmObjectDefinition extRefObjDef = extRef.FetchObjectDefinition <CdmObjectDefinition>(resOpt);
if (extendsRefUnder != null)
{
acpExtEnt = new AttributeContextParameters
{
under = extendsRefUnder,
type = CdmAttributeContextType.Projection,
Name = extRefObjDef.GetName(),
Regarding = extRef,
IncludeTraits = false
};
}
ProjectionDirective projDirective = new ProjectionDirective(resOpt, this, ownerRef: extRef);
CdmProjection projDef = (CdmProjection)extRefObjDef;
ProjectionContext projCtx = projDef.ConstructProjectionContext(projDirective, extendsRefUnder);
this.Rasb.ResolvedAttributeSet = projDef.ExtractResolvedAttributes(projCtx);
}
else
{
// An Entity Reference
if (extendsRefUnder != null)
{
// usually the extended entity is a reference to a name.
// it is allowed however to just define the entity inline.
acpExtEnt = new AttributeContextParameters
{
under = extendsRefUnder,
type = CdmAttributeContextType.Entity,
Name = extRef.NamedReference ?? extRef.ExplicitReference.GetName(),
Regarding = extRef,
IncludeTraits = false
};
}
// save moniker, extended entity may attach a different moniker that we do not
// want to pass along to getting this entities attributes
string oldMoniker = resOpt.FromMoniker;
this.Rasb.MergeAttributes((this.ExtendsEntityRef as CdmObjectReferenceBase).FetchResolvedAttributes(resOpt, acpExtEnt));
if (!resOpt.CheckAttributeCount(this.Rasb.ResolvedAttributeSet.ResolvedAttributeCount))
{
Logger.Error(nameof(CdmEntityDefinition), this.Ctx, $"Maximum number of resolved attributes reached for the entity: {this.EntityName}.");
return(null);
}
if (this.ExtendsEntityResolutionGuidance != null)
{
// some guidance was given on how to integrate the base attributes into the set. apply that guidance
ResolvedTraitSet rtsBase = this.FetchResolvedTraits(resOpt);
// this context object holds all of the info about what needs to happen to resolve these attributes.
// make a copy and set defaults if needed
CdmAttributeResolutionGuidance resGuide = (CdmAttributeResolutionGuidance)this.ExtendsEntityResolutionGuidance.Copy(resOpt);
resGuide.UpdateAttributeDefaults(resGuide.FetchObjectDefinitionName());
// holds all the info needed by the resolver code
AttributeResolutionContext arc = new AttributeResolutionContext(resOpt, resGuide, rtsBase);
this.Rasb.GenerateApplierAttributes(arc, false); // true = apply the prepared traits to new atts
}
// reset to the old moniker
resOpt.FromMoniker = oldMoniker;
}
}
this.Rasb.MarkInherited();
this.Rasb.ResolvedAttributeSet.AttributeContext = under;
if (this.Attributes != null)
{
int l = this.Attributes.Count;
for (int i = 0; i < l; i++)
{
dynamic att = this.Attributes.AllItems[i];
CdmAttributeContext attUnder = under;
AttributeContextParameters acpAtt = null;
if (under != null)
{
acpAtt = new AttributeContextParameters
{
under = under,
type = CdmAttributeContextType.AttributeDefinition,
Name = att.FetchObjectDefinitionName(),
Regarding = att,
IncludeTraits = false
};
}
this.Rasb.MergeAttributes(att.FetchResolvedAttributes(resOpt, acpAtt));
if (!resOpt.CheckAttributeCount(this.Rasb.ResolvedAttributeSet.ResolvedAttributeCount))
{
Logger.Error(nameof(CdmEntityDefinition), this.Ctx, $"Maximum number of resolved attributes reached for the entity: {this.EntityName}.");
return(null);
}
}
}
this.Rasb.MarkOrder();
this.Rasb.ResolvedAttributeSet.AttributeContext = under;
// things that need to go away
this.Rasb.RemoveRequestedAtts();
return(this.Rasb);
}
internal override ResolvedAttributeSetBuilder ConstructResolvedAttributes(ResolveOptions resOpt, CdmAttributeContext under = null)
{
// find and cache the complete set of attributes
// attributes definitions originate from and then get modified by subsequent re-defintions from (in this order):
// the entity used as an attribute, traits applied to that entity,
// the purpose of the attribute, any traits applied to the attribute.
ResolvedAttributeSetBuilder rasb = new ResolvedAttributeSetBuilder();
CdmEntityReference ctxEnt = this.Entity as CdmEntityReference;
CdmAttributeContext underAtt = (CdmAttributeContext)under;
AttributeContextParameters acpEnt = null;
if (underAtt != null)
{
// make a context for this attreibute that holds the attributes that come up from the entity
acpEnt = new AttributeContextParameters
{
under = underAtt,
type = CdmAttributeContextType.Entity,
Name = ctxEnt.FetchObjectDefinitionName(),
Regarding = ctxEnt,
IncludeTraits = true
};
}
ResolvedTraitSet rtsThisAtt = this.FetchResolvedTraits(resOpt);
// this context object holds all of the info about what needs to happen to resolve these attributes.
// make a copy and add defaults if missing
CdmAttributeResolutionGuidance resGuideWithDefault;
if (this.ResolutionGuidance != null)
resGuideWithDefault = (CdmAttributeResolutionGuidance)this.ResolutionGuidance.Copy(resOpt);
else
resGuideWithDefault = new CdmAttributeResolutionGuidance(this.Ctx);
resGuideWithDefault.UpdateAttributeDefaults(this.Name);
AttributeResolutionContext arc = new AttributeResolutionContext(resOpt, resGuideWithDefault, rtsThisAtt);
// complete cheating but is faster.
// this purpose will remove all of the attributes that get collected here, so dumb and slow to go get them
RelationshipInfo relInfo = this.GetRelationshipInfo(arc.ResOpt, arc);
if (relInfo.IsByRef)
{
// make the entity context that a real recursion would have give us
if (under != null)
under = rasb.ResolvedAttributeSet.CreateAttributeContext(resOpt, acpEnt);
// if selecting from one of many attributes, then make a context for each one
if (under != null && relInfo.SelectsOne)
{
// the right way to do this is to get a resolved entity from the embedded entity and then
// look through the attribute context hierarchy for non-nested entityReferenceAsAttribute nodes
// that seems like a disaster waiting to happen given endless looping, etc.
// for now, just insist that only the top level entity attributes declared in the ref entity will work
CdmEntityDefinition entPickFrom = (this.Entity as CdmEntityReference).FetchObjectDefinition<CdmEntityDefinition>(resOpt) as CdmEntityDefinition;
CdmCollection<CdmAttributeItem> attsPick = entPickFrom?.GetAttributeDefinitions();
if (entPickFrom != null && attsPick != null)
{
for (int i = 0; i < attsPick.Count; i++)
{
if (attsPick.AllItems[i].ObjectType == CdmObjectType.EntityAttributeDef)
{
// a table within a table. as expected with a selectsOne attribute
// since this is by ref, we won't get the atts from the table, but we do need the traits that hold the key
// these are the same contexts that would get created if we recursed
// first this attribute
AttributeContextParameters acpEntAtt = new AttributeContextParameters
{
under = under,
type = CdmAttributeContextType.AttributeDefinition,
Name = attsPick.AllItems[i].FetchObjectDefinitionName(),
Regarding = attsPick.AllItems[i],
IncludeTraits = true
};
CdmAttributeContext pickUnder = rasb.ResolvedAttributeSet.CreateAttributeContext(resOpt, acpEntAtt);
CdmEntityReference pickEnt = (attsPick.AllItems[i] as CdmEntityAttributeDefinition).Entity as CdmEntityReference;
AttributeContextParameters acpEntAttEnt = new AttributeContextParameters
{
under = pickUnder,
type = CdmAttributeContextType.Entity,
Name = pickEnt.FetchObjectDefinitionName(),
Regarding = pickEnt,
IncludeTraits = true
};
rasb.ResolvedAttributeSet.CreateAttributeContext(resOpt, acpEntAttEnt);
}
}
}
}
// if we got here because of the max depth, need to impose the directives to make the trait work as expected
if (relInfo.MaxDepthExceeded)
{
if (arc.ResOpt.Directives == null)
arc.ResOpt.Directives = new AttributeResolutionDirectiveSet();
arc.ResOpt.Directives.Add("referenceOnly");
}
}
else
{
ResolveOptions resLink = CopyResolveOptions(resOpt);
resLink.SymbolRefSet = resOpt.SymbolRefSet;
resLink.RelationshipDepth = relInfo.NextDepth;
rasb.MergeAttributes((this.Entity as CdmEntityReference).FetchResolvedAttributes(resLink, acpEnt));
}
// from the traits of purpose and applied here, see if new attributes get generated
rasb.ResolvedAttributeSet.AttributeContext = underAtt;
rasb.ApplyTraits(arc);
rasb.GenerateApplierAttributes(arc, true); // true = apply the prepared traits to new atts
// this may have added symbols to the dependencies, so merge them
resOpt.SymbolRefSet.Merge(arc.ResOpt.SymbolRefSet);
// use the traits for linked entity identifiers to record the actual foreign key links
if (rasb.ResolvedAttributeSet?.Set != null && relInfo.IsByRef)
{
foreach (var att in rasb.ResolvedAttributeSet.Set)
{
var reqdTrait = att.ResolvedTraits.Find(resOpt, "is.linkedEntity.identifier");
if (reqdTrait == null)
{
continue;
}
if (reqdTrait.ParameterValues == null || reqdTrait.ParameterValues.Length == 0)
{
Logger.Warning(nameof(CdmEntityAttributeDefinition), this.Ctx as ResolveContext, "is.linkedEntity.identifier does not support arguments");
continue;
}
var entReferences = new List<string>();
var attReferences = new List<string>();
Action<CdmEntityReference, string> addEntityReference = (CdmEntityReference entRef, string nameSpace) =>
{
var entDef = entRef.FetchObjectDefinition<CdmEntityDefinition>(resOpt);
var identifyingTrait = entRef.FetchResolvedTraits(resOpt).Find(resOpt, "is.identifiedBy");
if (identifyingTrait != null && entDef != null)
{
var attRef = identifyingTrait.ParameterValues.FetchParameterValueByName("attribute").Value;
string attNamePath = ((CdmObjectReferenceBase)attRef).NamedReference;
string attName = attNamePath.Split('/').Last(); // path should be absolute and without a namespace
string relativeEntPath = Ctx.Corpus.Storage.CreateAbsoluteCorpusPath(entDef.AtCorpusPath, entDef.InDocument);
if (relativeEntPath.StartsWith($"{nameSpace}:"))
{
relativeEntPath = relativeEntPath.Substring(nameSpace.Length + 1);
}
entReferences.Add(relativeEntPath);
attReferences.Add(attName);
}
};
if (relInfo.SelectsOne)
{
var entPickFrom = (this.Entity as CdmEntityReference).FetchObjectDefinition<CdmEntityDefinition>(resOpt) as CdmEntityDefinition;
var attsPick = entPickFrom?.GetAttributeDefinitions()?.Cast<CdmObject>().ToList();
if (entPickFrom != null && attsPick != null)
{
for (int i = 0; i < attsPick.Count; i++)
{
if (attsPick[i].ObjectType == CdmObjectType.EntityAttributeDef)
{
var entAtt = attsPick[i] as CdmEntityAttributeDefinition;
addEntityReference(entAtt.Entity, this.InDocument.Namespace);
}
}
}
}
else
{
addEntityReference(this.Entity, this.InDocument.Namespace);
}
var constantEntity = this.Ctx.Corpus.MakeObject<CdmConstantEntityDefinition>(CdmObjectType.ConstantEntityDef);
constantEntity.EntityShape = this.Ctx.Corpus.MakeRef<CdmEntityReference>(CdmObjectType.EntityRef, "entityGroupSet", true);
constantEntity.ConstantValues = entReferences.Select((entRef, idx) => new List<string> { entRef, attReferences[idx] }).ToList();
var traitParam = this.Ctx.Corpus.MakeRef<CdmEntityReference>(CdmObjectType.EntityRef, constantEntity, false);
reqdTrait.ParameterValues.SetParameterValue(resOpt, "entityReferences", traitParam);
}
}
// a 'structured' directive wants to keep all entity attributes together in a group
if (arc.ResOpt.Directives?.Has("structured") == true)
{
ResolvedAttribute raSub = new ResolvedAttribute(rtsThisAtt.ResOpt, rasb.ResolvedAttributeSet, this.Name, (CdmAttributeContext)rasb.ResolvedAttributeSet.AttributeContext);
if (relInfo.IsArray)
{
// put a resolved trait on this att group, yuck, hope I never need to do this again and then need to make a function for this
CdmTraitReference tr = this.Ctx.Corpus.MakeObject<CdmTraitReference>(CdmObjectType.TraitRef, "is.linkedEntity.array", true);
var t = tr.FetchObjectDefinition<CdmTraitDefinition>(resOpt);
ResolvedTrait rt = new ResolvedTrait(t, null, new List<dynamic>(), new List<bool>());
raSub.ResolvedTraits = raSub.ResolvedTraits.Merge(rt, true);
}
rasb = new ResolvedAttributeSetBuilder();
rasb.OwnOne(raSub);
}
return rasb;
}
internal override ResolvedAttributeSetBuilder ConstructResolvedAttributes(ResolveOptions resOpt, CdmAttributeContext under = null)
{
// find and cache the complete set of attributes
// attributes definitions originate from and then get modified by subsequent re-definitions from (in this order):
// an extended entity, traits applied to extended entity, exhibited traits of main entity, the (datatype or entity) used as an attribute, traits applied to that datatype or entity,
// the relationsip of the attribute, the attribute definition itself and included attribute groups, dynamic traits applied to the attribute.
this.Rasb = new ResolvedAttributeSetBuilder();
this.Rasb.ResolvedAttributeSet.AttributeContext = under;
if (this.ExtendsEntity != null)
{
CdmObjectReference extRef = this.ExtendsEntityRef;
CdmAttributeContext extendsRefUnder = null;
AttributeContextParameters acpExtEnt = null;
if (under != null)
{
AttributeContextParameters acpExt = new AttributeContextParameters
{
under = under,
type = CdmAttributeContextType.EntityReferenceExtends,
Name = "extends",
Regarding = null,
IncludeTraits = false
};
extendsRefUnder = this.Rasb.ResolvedAttributeSet.CreateAttributeContext(resOpt, acpExt);
acpExtEnt = new AttributeContextParameters
{
under = extendsRefUnder,
type = CdmAttributeContextType.Entity,
Name = extRef.NamedReference,
Regarding = extRef,
IncludeTraits = false
};
}
// save moniker, extended entity may attach a different moniker that we do not
// want to pass along to getting this entities attributes
string oldMoniker = resOpt.FromMoniker;
this.Rasb.MergeAttributes((this.ExtendsEntityRef as CdmObjectReferenceBase).FetchResolvedAttributes(resOpt, acpExtEnt));
if (this.ExtendsEntityResolutionGuidance != null)
{
// some guidance was given on how to integrate the base attributes into the set. apply that guidance
ResolvedTraitSet rtsBase = this.FetchResolvedTraits(resOpt);
// this context object holds all of the info about what needs to happen to resolve these attributes.
// make a copy and set defaults if needed
CdmAttributeResolutionGuidance resGuide = (CdmAttributeResolutionGuidance)this.ExtendsEntityResolutionGuidance.Copy(resOpt);
resGuide.UpdateAttributeDefaults(resGuide.FetchObjectDefinitionName());
// holds all the info needed by the resolver code
AttributeResolutionContext arc = new AttributeResolutionContext(resOpt, resGuide, rtsBase);
this.Rasb.GenerateApplierAttributes(arc, false); // true = apply the prepared traits to new atts
}
// reset to the old moniker
resOpt.FromMoniker = oldMoniker;
}
this.Rasb.MarkInherited();
this.Rasb.ResolvedAttributeSet.AttributeContext = under;
if (this.Attributes != null)
{
int l = this.Attributes.Count;
for (int i = 0; i < l; i++)
{
dynamic att = this.Attributes.AllItems[i];
CdmAttributeContext attUnder = under;
AttributeContextParameters acpAtt = null;
if (under != null)
{
acpAtt = new AttributeContextParameters
{
under = under,
type = CdmAttributeContextType.AttributeDefinition,
Name = att.FetchObjectDefinitionName(),
Regarding = att,
IncludeTraits = false
};
}
this.Rasb.MergeAttributes(att.FetchResolvedAttributes(resOpt, acpAtt));
}
}
this.Rasb.MarkOrder();
this.Rasb.ResolvedAttributeSet.AttributeContext = under;
// things that need to go away
this.Rasb.RemoveRequestedAtts();
return(this.Rasb);
}
internal ResolvedAttributeSet FetchResolvedAttributes(ResolveOptions resOpt = null, AttributeContextParameters acpInContext = null)
{
bool wasPreviouslyResolving = this.Ctx.Corpus.isCurrentlyResolving;
this.Ctx.Corpus.isCurrentlyResolving = true;
if (resOpt == null)
{
resOpt = new ResolveOptions(this, this.Ctx.Corpus.DefaultResolutionDirectives);
}
bool inCircularReference = false;
bool wasInCircularReference = resOpt.InCircularReference;
if (this is CdmEntityDefinition entity)
{
inCircularReference = resOpt.CurrentlyResolvingEntities.Contains(entity);
resOpt.CurrentlyResolvingEntities.Add(entity);
resOpt.InCircularReference = inCircularReference;
// uncomment this line as a test to turn off allowing cycles
//if (inCircularReference)
//{
// return new ResolvedAttributeSet();
//}
}
int currentDepth = resOpt.DepthInfo.CurrentDepth;
const string kind = "rasb";
ResolveContext ctx = this.Ctx as ResolveContext;
ResolvedAttributeSetBuilder rasbResult = null;
ResolvedAttributeSetBuilder rasbCache = this.FetchObjectFromCache(resOpt, acpInContext);
CdmAttributeContext underCtx;
// store the previous document set, we will need to add it with
// children found from the constructResolvedTraits call
SymbolSet currDocRefSet = resOpt.SymbolRefSet;
if (currDocRefSet == null)
{
currDocRefSet = new SymbolSet();
}
resOpt.SymbolRefSet = new SymbolSet();
// if using the cache passes the maxDepth, we cannot use it
if (rasbCache != null && resOpt.DepthInfo.CurrentDepth + rasbCache.ResolvedAttributeSet.DepthTraveled > resOpt.DepthInfo.MaxDepth)
{
rasbCache = null;
}
if (rasbCache == null)
{
// a new context node is needed for these attributes,
// this tree will go into the cache, so we hang it off a placeholder parent
// when it is used from the cache (or now), then this placeholder parent is ignored and the things under it are
// put into the 'receiving' tree
underCtx = CdmAttributeContext.GetUnderContextForCacheContext(resOpt, this.Ctx, acpInContext);
rasbCache = this.ConstructResolvedAttributes(resOpt, underCtx);
if (rasbCache != null)
{
// register set of possible docs
CdmObjectDefinition oDef = this.FetchObjectDefinition <CdmObjectDefinitionBase>(resOpt);
if (oDef != null)
{
ctx.Corpus.RegisterDefinitionReferenceSymbols(oDef, kind, resOpt.SymbolRefSet);
if (this.ObjectType == CdmObjectType.EntityDef)
{
// if we just got attributes for an entity, take the time now to clean up this cached tree and prune out
// things that don't help explain where the final set of attributes came from
if (underCtx != null)
{
var scopesForAttributes = new HashSet <CdmAttributeContext>();
underCtx.CollectContextFromAtts(rasbCache.ResolvedAttributeSet, scopesForAttributes); // the context node for every final attribute
if (!underCtx.PruneToScope(scopesForAttributes))
{
return(null);
}
}
}
// get the new cache tag now that we have the list of docs
string cacheTag = ctx.Corpus.CreateDefinitionCacheTag(resOpt, this, kind, acpInContext != null ? "ctx" : null);
// save this as the cached version
if (!string.IsNullOrWhiteSpace(cacheTag))
{
ctx.AttributeCache[cacheTag] = rasbCache;
}
}
// get the 'underCtx' of the attribute set from the acp that is wired into
// the target tree
underCtx = rasbCache.ResolvedAttributeSet.AttributeContext?.GetUnderContextFromCacheContext(resOpt, acpInContext);
}
}
else
{
// get the 'underCtx' of the attribute set from the cache. The one stored there was build with a different
// acp and is wired into the fake placeholder. so now build a new underCtx wired into the output tree but with
// copies of all cached children
underCtx = rasbCache.ResolvedAttributeSet.AttributeContext?.GetUnderContextFromCacheContext(resOpt, acpInContext);
//underCtx.ValidateLineage(resOpt); // debugging
}
if (rasbCache != null)
{
// either just built something or got from cache
// either way, same deal: copy resolved attributes and copy the context tree associated with it
// 1. deep copy the resolved att set (may have groups) and leave the attCtx pointers set to the old tree
// 2. deep copy the tree.
// 1. deep copy the resolved att set (may have groups) and leave the attCtx pointers set to the old tree
rasbResult = new ResolvedAttributeSetBuilder
{
ResolvedAttributeSet = rasbCache.ResolvedAttributeSet.Copy()
};
// 2. deep copy the tree and map the context references.
if (underCtx != null) // null context? means there is no tree, probably 0 attributes came out
{
if (!underCtx.AssociateTreeCopyWithAttributes(resOpt, rasbResult.ResolvedAttributeSet))
{
return(null);
}
}
}
if (this is CdmEntityAttributeDefinition)
{
// current depth should now be set to this entity attribute level
resOpt.DepthInfo.CurrentDepth = currentDepth;
// now at the top of the chain where max depth does not influence the cache
if (currentDepth == 0)
{
resOpt.DepthInfo.MaxDepthExceeded = false;
}
}
if (!inCircularReference && this.ObjectType == CdmObjectType.EntityDef)
{
// should be removed from the root level only
// if it is in a circular reference keep it there
resOpt.CurrentlyResolvingEntities.Remove(this as CdmEntityDefinition);
}
resOpt.InCircularReference = wasInCircularReference;
// merge child document set with current
currDocRefSet.Merge(resOpt.SymbolRefSet);
resOpt.SymbolRefSet = currDocRefSet;
this.Ctx.Corpus.isCurrentlyResolving = wasPreviouslyResolving;
return(rasbResult?.ResolvedAttributeSet);
}
internal ResolvedAttributeSet FetchResolvedAttributes(ResolveOptions resOpt = null, AttributeContextParameters acpInContext = null)
{
bool wasPreviouslyResolving = this.Ctx.Corpus.isCurrentlyResolving;
this.Ctx.Corpus.isCurrentlyResolving = true;
if (resOpt == null)
{
resOpt = new ResolveOptions(this, this.Ctx.Corpus.DefaultResolutionDirectives);
}
const string kind = "rasb";
ResolveContext ctx = this.Ctx as ResolveContext;
ResolvedAttributeSetBuilder rasbResult = null;
// keep track of the context node that the results of this call would like to use as the parent
CdmAttributeContext parentCtxForResult = null;
ResolvedAttributeSetBuilder rasbCache = this.FetchObjectFromCache(resOpt, acpInContext);
CdmAttributeContext underCtx = null;
if (acpInContext != null)
{
parentCtxForResult = acpInContext.under;
}
// store the previous document set, we will need to add it with
// children found from the constructResolvedTraits call
SymbolSet currDocRefSet = resOpt.SymbolRefSet;
if (currDocRefSet == null)
{
currDocRefSet = new SymbolSet();
}
resOpt.SymbolRefSet = new SymbolSet();
// if using the cache passes the maxDepth, we cannot use it
if (rasbCache != null && resOpt.DepthInfo != null && resOpt.DepthInfo.CurrentDepth + rasbCache.ResolvedAttributeSet.DepthTraveled > resOpt.DepthInfo.MaxDepth)
{
rasbCache = null;
}
if (rasbCache == null)
{
if (this.resolvingAttributes)
{
// re-entered this attribute through some kind of self or looping reference.
this.Ctx.Corpus.isCurrentlyResolving = wasPreviouslyResolving;
//return new ResolvedAttributeSet(); // uncomment this line as a test to turn off allowing cycles
resOpt.InCircularReference = true;
this.circularReference = true;
}
this.resolvingAttributes = true;
// a new context node is needed for these attributes,
// this tree will go into the cache, so we hang it off a placeholder parent
// when it is used from the cache (or now), then this placeholder parent is ignored and the things under it are
// put into the 'receiving' tree
underCtx = CdmAttributeContext.GetUnderContextForCacheContext(resOpt, this.Ctx, acpInContext);
rasbCache = this.ConstructResolvedAttributes(resOpt, underCtx);
this.resolvingAttributes = false;
if (rasbCache != null)
{
// register set of possible docs
CdmObjectDefinition oDef = this.FetchObjectDefinition <CdmObjectDefinitionBase>(resOpt);
if (oDef != null)
{
ctx.Corpus.RegisterDefinitionReferenceSymbols(oDef, kind, resOpt.SymbolRefSet);
// get the new cache tag now that we have the list of docs
string cacheTag = ctx.Corpus.CreateDefinitionCacheTag(resOpt, this, kind, acpInContext != null ? "ctx" : null);
// save this as the cached version
if (!string.IsNullOrWhiteSpace(cacheTag))
{
ctx.Cache[cacheTag] = rasbCache;
}
}
// get the 'underCtx' of the attribute set from the acp that is wired into
// the target tree
underCtx = (rasbCache as ResolvedAttributeSetBuilder).ResolvedAttributeSet.AttributeContext?.GetUnderContextFromCacheContext(resOpt, acpInContext);
}
if (this.circularReference)
{
resOpt.InCircularReference = false;
}
}
else
{
// get the 'underCtx' of the attribute set from the cache. The one stored there was build with a different
// acp and is wired into the fake placeholder. so now build a new underCtx wired into the output tree but with
// copies of all cached children
underCtx = (rasbCache as ResolvedAttributeSetBuilder).ResolvedAttributeSet.AttributeContext?.GetUnderContextFromCacheContext(resOpt, acpInContext);
//underCtx.ValidateLineage(resOpt); // debugging
}
if (rasbCache != null)
{
// either just built something or got from cache
// either way, same deal: copy resolved attributes and copy the context tree associated with it
// 1. deep copy the resolved att set (may have groups) and leave the attCtx pointers set to the old tree
// 2. deep copy the tree.
// 1. deep copy the resolved att set (may have groups) and leave the attCtx pointers set to the old tree
rasbResult = new ResolvedAttributeSetBuilder();
rasbResult.ResolvedAttributeSet = (rasbCache as ResolvedAttributeSetBuilder).ResolvedAttributeSet.Copy();
// 2. deep copy the tree and map the context references.
if (underCtx != null) // null context? means there is no tree, probably 0 attributes came out
{
if (underCtx.AssociateTreeCopyWithAttributes(resOpt, rasbResult.ResolvedAttributeSet) == false)
{
return(null);
}
}
}
DepthInfo currDepthInfo = resOpt.DepthInfo;
if (this is CdmEntityAttributeDefinition && currDepthInfo != null)
{
// if we hit the maxDepth, we are now going back up
currDepthInfo.CurrentDepth--;
// now at the top of the chain where max depth does not influence the cache
if (currDepthInfo.CurrentDepth <= 0)
{
resOpt.DepthInfo = null;
}
}
// merge child document set with current
currDocRefSet.Merge(resOpt.SymbolRefSet);
resOpt.SymbolRefSet = currDocRefSet;
this.Ctx.Corpus.isCurrentlyResolving = wasPreviouslyResolving;
return(rasbResult?.ResolvedAttributeSet);
}
