/// <summary>
/// Analyzes a lambda expression to check whether it can be satisfied with
/// $select and client-side materialization.
/// </summary>
/// <param name="le">Lambda expression.</param>
/// <param name="re">Resource expression in scope.</param>
/// <param name="matchMembers">Whether member accesses are matched as top-level projections.</param>
/// <param name="context">Context of expression to analyze.</param>
/// <returns>true if the lambda is a client-side projection; false otherwise.</returns>
internal static bool Analyze(LambdaExpression le, ResourceExpression re, bool matchMembers, DataServiceContext context)
{
Debug.Assert(le != null, "le != null");
if (le.Body.NodeType == ExpressionType.Constant)
{
if (ClientTypeUtil.TypeOrElementTypeIsEntity(le.Body.Type))
{
throw new NotSupportedException(Strings.ALinq_CannotCreateConstantEntity);
}
re.Projection = new ProjectionQueryOptionExpression(le.Body.Type, le, new List <string>());
return(true);
}
if (le.Body.NodeType == ExpressionType.MemberInit || le.Body.NodeType == ExpressionType.New)
{
AnalyzeResourceExpression(le, re, context);
return(true);
}
if (matchMembers)
{
// Members can be projected standalone or type-casted.
Expression withoutConverts = SkipConverts(le.Body);
if (withoutConverts.NodeType == ExpressionType.MemberAccess)
{
AnalyzeResourceExpression(le, re, context);
return(true);
}
}
return(false);
}
/// <summary>
/// Visit an <see cref="InputReferenceExpression"/>, producing a new InputReferenceExpression
/// based on the visited form of the <see cref="QueryableResourceExpression"/> that is referenced by
/// the InputReferenceExpression argument, <paramref name="ire"/>.
/// </summary>
/// <param name="ire">InputReferenceExpression expression to visit</param>
/// <returns>Visited InputReferenceExpression expression</returns>
internal virtual Expression VisitInputReferenceExpression(InputReferenceExpression ire)
{
Debug.Assert(ire != null, "ire != null -- otherwise caller never should have visited here");
ResourceExpression re = (ResourceExpression)this.Visit(ire.Target);
return(re.CreateReference());
}
/// <summary>Builds the Uri for the expression passed in.</summary>
/// <param name="e">The expression to translate into a Uri</param>
/// <returns>Query components</returns>
internal QueryComponents Translate(Expression e)
{
Uri uri;
Version version;
bool addTrailingParens = false;
Dictionary <Expression, Expression> normalizerRewrites = null;
// short cut analysis if just a resource set or singleton resource.
// note - to be backwards compatible with V1, will only append trailing () for queries
// that include more then just a resource set.
if (!(e is QueryableResourceExpression))
{
normalizerRewrites = new Dictionary <Expression, Expression>(ReferenceEqualityComparer <Expression> .Instance);
e = Evaluator.PartialEval(e);
e = ExpressionNormalizer.Normalize(e, normalizerRewrites);
e = ResourceBinder.Bind(e, this.Context);
addTrailingParens = true;
}
UriWriter.Translate(this.Context, addTrailingParens, e, out uri, out version);
ResourceExpression re = e as ResourceExpression;
Type lastSegmentType = re.Projection == null ? re.ResourceType : re.Projection.Selector.Parameters[0].Type;
LambdaExpression selector = re.Projection == null ? null : re.Projection.Selector;
return(new QueryComponents(uri, version, lastSegmentType, selector, normalizerRewrites));
}
/// <summary>
/// Retargets this input reference to point to the resource set specified by <paramref name="newTarget"/>.
/// </summary>
/// <param name="newTarget">The <see cref="QueryableResourceExpression"/> that this input reference should use as its target</param>
internal void OverrideTarget(QueryableResourceExpression newTarget)
{
Debug.Assert(newTarget != null, "Resource set cannot be null");
Debug.Assert(newTarget.ResourceType.Equals(this.Type), "Cannot reference a resource set with a different resource type");
this.target = newTarget;
}
/// <summary>
/// Analyzes the specified <paramref name="lambda"/> for selection and updates
/// <paramref name="resource"/>.
/// </summary>
/// <param name="lambda">Lambda expression to analyze.</param>
/// <param name="resource">Resource expression to update.</param>
/// <param name="context">Context of expression to analyze.</param>
private static void AnalyzeResourceExpression(LambdaExpression lambda, ResourceExpression resource, DataServiceContext context)
{
SelectExpandPathBuilder pb = new SelectExpandPathBuilder();
ProjectionAnalyzer.Analyze(lambda, pb, context);
resource.Projection = new ProjectionQueryOptionExpression(lambda.Body.Type, lambda, pb.ProjectionPaths.ToList());
resource.ExpandPaths = pb.ExpandPaths.Union(resource.ExpandPaths, StringComparer.Ordinal).ToList();
resource.RaiseUriVersion(pb.UriVersion);
}
protected virtual Expression VisitResource(ResourceExpression e)
{
var fields = VisitFieldDeclarations(e.Fields);
var filter = Visit(e.Filter);
return(Equals(fields, e.Fields) && filter == e.Filter
? e
: new ResourceExpression(e.Type, e.Name, fields, filter));
}
/// <summary>
/// Replaces Lambda parameter references or transparent scope property accesses over those Lambda
/// parameter references with <see cref="InputReferenceExpression"/>s to the appropriate corresponding
/// <see cref="QueryableResourceExpression"/>s, based on the 'input' QueryableResourceExpression to which the
/// Lambda is logically applied and any enclosing transparent scope applied to that input resource.
/// </summary>
/// <param name="e">The expression to rebind</param>
/// <param name="currentInput">
/// The 'current input' resource - either the root resource or the
/// rightmost resource in the navigation chain.</param>
/// <param name="inputParameter">The Lambda parameter that represents a reference to the 'input'</param>
/// <param name="referencedInputs">A list that will be populated with the resources that were referenced by the rebound expression</param>
/// <returns>
/// The rebound version of <paramref name="e"/> where MemberExpression/ParameterExpressions that
/// represent resource references have been replaced with appropriate InputReferenceExpressions.
/// </returns>
internal static Expression Bind(Expression e, ResourceExpression currentInput, ParameterExpression inputParameter, List <ResourceExpression> referencedInputs)
{
Debug.Assert(e != null, "Expression cannot be null");
Debug.Assert(currentInput != null, "A current input resource is required");
Debug.Assert(inputParameter != null, "The input lambda parameter is required");
Debug.Assert(referencedInputs != null, "The referenced inputs list is required");
InputBinder binder = new InputBinder(currentInput, inputParameter);
Expression result = binder.Visit(e);
referencedInputs.AddRange(binder.referencedInputs);
return(result);
}
public override void WriteTo(ITextOutput output, ILAstWritingOptions options)
{
output.Write("using (");
Variable.WriteTo(output);
output.Write(" = ");
ResourceExpression.WriteTo(output, options);
output.WriteLine(") {");
output.Indent();
Body.WriteTo(output, options);
output.Unindent();
output.WriteLine();
output.Write("}");
}
protected override Expression VisitResource(ResourceExpression resource)
{
_stringBuilder.Append(_root);
Visit(resource.Name);
if (resource.Fields.Any())
{
AppendParameterSeparator();
_stringBuilder.Append("fields=");
VisitFieldDeclarations(resource.Fields);
}
Visit(resource.Filter);
return(resource);
}
internal LambdaExpression Rebind(LambdaExpression lambda, ResourceExpression source)
{
this.successfulRebind = true;
this.oldLambdaParameter = lambda.Parameters[0];
this.projectionSource = source;
Expression body = this.Visit(lambda.Body);
if (this.successfulRebind)
{
Type delegateType = typeof(Func <,>).MakeGenericType(new Type[] { newLambdaParameter.Type, lambda.Body.Type });
return(Expression.Lambda(delegateType, body, new ParameterExpression[] { this.newLambdaParameter }));
}
else
{
throw new NotSupportedException(Strings.ALinq_CanOnlyProjectTheLeaf);
}
}
internal static LambdaExpression TryToRewrite(LambdaExpression le, ResourceExpression source)
{
Type proposedParameterType = source.ResourceType;
LambdaExpression result;
if (!ResourceBinder.PatternRules.MatchSingleArgumentLambda(le, out le) || // can only rewrite single parameter Lambdas.
ClientTypeUtil.TypeOrElementTypeIsEntity(le.Parameters[0].Type) || // only attempt to rewrite if lambda parameter is not an entity type
!(le.Parameters[0].Type.GetProperties().Any(p => p.PropertyType == proposedParameterType))) // lambda parameter must have public property that is same as proposed type.
{
result = le;
}
else
{
ProjectionRewriter rewriter = new ProjectionRewriter(proposedParameterType);
result = rewriter.Rebind(le, source);
}
return(result);
}
public override void WriteTo(ITextOutput output, ILAstWritingOptions options)
{
WriteILRange(output, options);
output.Write("using");
if (IsAsync)
{
output.Write(".async");
}
if (IsRefStruct)
{
output.Write(".ref");
}
output.Write(" (");
Variable.WriteTo(output);
output.Write(" = ");
ResourceExpression.WriteTo(output, options);
output.WriteLine(") {");
output.Indent();
Body.WriteTo(output, options);
output.Unindent();
output.WriteLine();
output.Write("}");
}
/// <summary>
/// Constructs a new input reference expression that refers to the specified resource set
/// </summary>
/// <param name="target">The target resource set that the new expression will reference</param>
internal InputReferenceExpression(ResourceExpression target)
{
Debug.Assert(target != null, "Target resource set cannot be null");
this.target = target;
}
/// <summary>
/// Resolves member accesses that represent transparent scope property accesses to the corresponding resource,
/// iff the input resource is enclosed in a transparent scope and the specified MemberExpression represents
/// such a property access.
/// </summary>
/// <param name="m">MemberExpression expression to visit</param>
/// <returns>
/// An InputReferenceExpression if the member access represents a transparent scope property
/// access that can be resolved to a resource in the path that produces the input resource;
/// otherwise the same MemberExpression is returned.
/// </returns>
internal override Expression VisitMemberAccess(MemberExpression m)
{
// If the current input resource is not enclosed in a transparent scope, then this
// MemberExpression cannot represent a valid transparent scope access based on the input parameter.
if (this.inputResource == null ||
!this.inputResource.HasTransparentScope)
{
return(base.VisitMemberAccess(m));
}
ParameterExpression innerParamRef = null;
Stack <PropertyInfo> nestedAccesses = new Stack <PropertyInfo>();
MemberExpression memberRef = m;
while (memberRef != null &&
PlatformHelper.IsProperty(memberRef.Member) &&
memberRef.Expression != null)
{
nestedAccesses.Push((PropertyInfo)memberRef.Member);
if (memberRef.Expression.NodeType == ExpressionType.Parameter)
{
innerParamRef = (ParameterExpression)memberRef.Expression;
}
memberRef = memberRef.Expression as MemberExpression;
}
// Only continue if the inner non-MemberExpression is the input reference ParameterExpression and
// at least one property reference is present - otherwise this cannot be a transparent scope access.
if (innerParamRef != this.inputParameter || nestedAccesses.Count == 0)
{
return(m);
}
ResourceExpression target = this.input;
QueryableResourceExpression targetResource = this.inputResource;
bool transparentScopeTraversed = false;
// Process all the traversals through transparent scopes.
while (nestedAccesses.Count > 0)
{
if (targetResource == null || !targetResource.HasTransparentScope)
{
break;
}
// Peek the property; pop it once it's consumed
// (it could be a non-transparent-identifier access).
PropertyInfo currentProp = nestedAccesses.Peek();
// If this is the accessor for the target, then the member
// refers to the target itself.
if (currentProp.Name.Equals(targetResource.TransparentScope.Accessor, StringComparison.Ordinal))
{
target = targetResource;
nestedAccesses.Pop();
transparentScopeTraversed = true;
continue;
}
// This member could also be one of the in-scope sources of the target.
Expression source;
if (!targetResource.TransparentScope.SourceAccessors.TryGetValue(currentProp.Name, out source))
{
break;
}
transparentScopeTraversed = true;
nestedAccesses.Pop();
Debug.Assert(source != null, "source != null -- otherwise ResourceBinder created an accessor to nowhere");
InputReferenceExpression sourceReference = source as InputReferenceExpression;
if (sourceReference == null)
{
targetResource = source as QueryableResourceExpression;
if (targetResource == null || !targetResource.HasTransparentScope)
{
target = (ResourceExpression)source;
}
}
else
{
targetResource = sourceReference.Target as QueryableResourceExpression;
target = targetResource;
}
}
// If no traversals were made, the original expression is OK.
if (!transparentScopeTraversed)
{
return(m);
}
// Process traversals after the transparent scope.
Expression result = this.CreateReference(target);
while (nestedAccesses.Count > 0)
{
result = Expression.Property(result, nestedAccesses.Pop());
}
return(result);
}
public void Preprocess(List <XmlAttribute> expressionAttributes, List <Resource> resources, List <IdViewObject> viewElements)
{
// Create all properties for viewElements
foreach (IdViewObject viewElement in viewElements)
{
Tuple <CodeMemberField, CodeMemberProperty> result = CodeGeneratorHelper.GenerateProxyProperty(viewElement.Id, viewElement.TypeName, new CodeMethodInvokeExpression(GetFindViewByIdReference(viewElement.TypeName), CodeGeneratorHelper.GetAndroidResourceReference(ResourcePart.Id, viewElement.Id)));
Fields.Add(result.Item1);
Properties.Add(result.Item2);
}
// Generate property for ILocalizationService LocalizationService
CodePropertyReferenceExpression localizationServiceReference = CreateLocalizationServiceProperty();
// Eval all expressions
List <ExpressionContainer> expressions = (from attribute in expressionAttributes
let expressionResult = EvaluateExpression(attribute.Value)
where expressionResult != null
select new ExpressionContainer
{
Expression = expressionResult,
TargetObject = attribute.AttachedId,
TargetField = attribute.LocalName,
IsTargetingResource = false,
}).ToList();
// Affect a property name to all resources and check if some has expression as attribute value
foreach (Resource res in resources)
{
res.PropertyName = NameGeneratorHelper.GetResourceName();
foreach (KeyValuePair <string, string> propertyItem in res.Properties.Where(propertyItem => ParsingHelper.IsExpressionValue(propertyItem.Value)).ToList())
{
res.Properties.Remove(propertyItem.Key);
Expression expr = EvaluateExpression(propertyItem.Value);
if (expr != null)
{
if (CheckCorrectExpressionInResource(expr))
{
Log.LogError("Expression {0} is invalid in a resource context (you cannot use binding)", propertyItem.Value);
}
else
{
expressions.Add(new ExpressionContainer
{
Expression = expr,
TargetObject = res.PropertyName,
TargetField = propertyItem.Key,
IsTargetingResource = true,
});
}
}
}
}
// Check if all resources are declared and filter those we need
Dictionary <string, Resource> neededResource = new Dictionary <string, Resource>();
List <string> resourceKeys = expressions.SelectMany(x => GetUsedResources(x.Expression)).Distinct().ToList();
foreach (string key in resourceKeys)
{
Resource res = resources.FirstOrDefault(x => key.Equals(x.Key, StringComparison.InvariantCultureIgnoreCase));
if (res == null)
{
Log.LogError("Resource with key {0} does not exists", key);
}
else
{
neededResource.Add(key, res);
}
}
// Go through all binding expression and find those where we need to declare implicit resources
// Will also remove all Template & TemplateSelector fields in BindingExpression
// to only have a fully prepared adapter
foreach (Expression bindingExpression in expressions.SelectMany(expression => GetBindingExpressions(expression.Expression)).ToList())
{
if (bindingExpression.Has(BindingExpression.TEMPLATE))
{
// create a template selector
string templateSelectorKey = NameGeneratorHelper.GetResourceKey();
string templateSelectorPropertyName = NameGeneratorHelper.GetResourceName();
neededResource.Add(templateSelectorKey, new Resource(templateSelectorKey)
{
PropertyName = templateSelectorPropertyName,
ResourceElement = null,
Type = Configuration.DefaultTemplateSelector
});
expressions.Add(new ExpressionContainer
{
Expression = bindingExpression[BindingExpression.TEMPLATE],
TargetField = Configuration.DefaultTemplateSelectorField,
TargetObject = templateSelectorPropertyName,
IsTargetingResource = true,
});
bindingExpression.Remove(BindingExpression.TEMPLATE);
ResourceExpression templateSelectorResourceExpression = new ResourceExpression();
templateSelectorResourceExpression.Add(ResourceExpression.KEY, new TextExpression
{
Value = templateSelectorKey
});
bindingExpression.Add(BindingExpression.TEMPLATE_SELECTOR, templateSelectorResourceExpression);
}
if (bindingExpression.Has(BindingExpression.TEMPLATE_SELECTOR))
{
// create an adapter
string adapterKey = NameGeneratorHelper.GetResourceKey();
string adapterName = NameGeneratorHelper.GetResourceName();
neededResource.Add(adapterKey, new Resource(adapterKey)
{
PropertyName = adapterName,
ResourceElement = null,
Type = Configuration.DefaultAdapter
});
expressions.Add(new ExpressionContainer
{
Expression = bindingExpression[BindingExpression.TEMPLATE_SELECTOR],
TargetField = Configuration.DefaultAdapterField,
TargetObject = adapterName,
IsTargetingResource = true,
});
bindingExpression.Remove(BindingExpression.TEMPLATE_SELECTOR);
ResourceExpression adapterResourceExpression = new ResourceExpression();
adapterResourceExpression.Add(ResourceExpression.KEY, new TextExpression
{
Value = adapterKey
});
bindingExpression.Add(BindingExpression.ADAPTER, adapterResourceExpression);
}
}
// In order to check if all adapter are not used more than once since we need them to be unique target
Dictionary <string, bool> usedAdapter = new Dictionary <string, bool>();
foreach (ExpressionContainer expression in expressions.Where(x => x.Expression.IsOfType(ExpressionType.Binding)).ToList())
{
Expression bindingExpression = expression.Expression;
if (bindingExpression.Has(BindingExpression.ADAPTER))
{
// expression in Adapter could only be Resource (since it's an android platform specific things, a binding expression would not have any sense)
Expression resourceExpression = bindingExpression[BindingExpression.ADAPTER];
string adapterKey = resourceExpression.GetValue(ResourceExpression.KEY);
Resource adapterResource = neededResource[adapterKey];
if (usedAdapter.ContainsKey(adapterKey))
{
Log.LogError("The adapter with key {0} is used more than once which could lead to issue, you need one adapter per use !", adapterKey);
}
else
{
usedAdapter.Add(adapterKey, true);
}
// remove the adapter property
bindingExpression.Remove(BindingExpression.ADAPTER);
// store old target info
string oldTargetField = expression.TargetField;
string oldTargetObject = expression.TargetObject;
bool oldTargetType = expression.IsTargetingResource;
// retarget the binding expression to be targeted to Adapter.Collection
expression.TargetField = "Collection";
expression.TargetObject = adapterResource.PropertyName;
expression.IsTargetingResource = false; //TODO : false for debug mode only, need to see what we can do about that ?
// add a new expression to target the old object/field couple and affect the adapter with the resource expression
expressions.Add(new ExpressionContainer
{
IsTargetingResource = oldTargetType,
TargetField = oldTargetField,
TargetObject = oldTargetObject,
Expression = resourceExpression,
});
}
}
// Create all properties for resources
Dictionary <string, CodePropertyReferenceExpression> resourceReferences = CreatePropertiesForResources(neededResource.Values);
// Generate all properties to handle CommandParameter and retarget all expressions if needed
GenerateCommandParameterProperties(expressions);
// Create a setup resources method to initalize resources with all {Resource ...} and {Translation ...} expressions
List <ExpressionContainer> translationExpressions = expressions.Where(x => x.Expression.IsOfType(ExpressionType.Translation)).ToList();
List <ExpressionContainer> expressionsTargetingResources = expressions.Where(x => x.IsTargetingResource && x.Expression.IsOfType(ExpressionType.Resource)).ToList();
List <ExpressionContainer> resourceExpressions = expressions.Where(x => !x.IsTargetingResource && x.Expression.IsOfType(ExpressionType.Resource)).ToList();
List <ExpressionContainer> bindingExpressions = expressions.Where(x => !x.IsTargetingResource && x.Expression.IsOfType(ExpressionType.Binding)).ToList();
CodeMethodReferenceExpression assignTranslationMethodReference = CreateAssignTranslationMethod(translationExpressions, localizationServiceReference);
CodeMethodReferenceExpression setupResourcesReference = CreateSetupResourcesMethod(expressionsTargetingResources, resourceReferences);
CodeMethodReferenceExpression setupResourceForViewElement = CreateSetupResourceForViewElementMethod(resourceExpressions, resourceReferences);
CreateBindingOverrideMethod(bindingExpressions, localizationServiceReference, resourceReferences, assignTranslationMethodReference, setupResourcesReference, setupResourceForViewElement);
}
/// <summary>
/// Visit Query options for Resource
/// </summary>
/// <param name="re">Resource Expression with query options</param>
internal void VisitQueryOptions(ResourceExpression re)
{
if (re.HasQueryOptions)
{
this.uriBuilder.Append(UriHelper.QUESTIONMARK);
QueryableResourceExpression rse = re as QueryableResourceExpression;
if (rse != null)
{
IEnumerator options = rse.SequenceQueryOptions.GetEnumerator();
while (options.MoveNext())
{
Expression e = ((Expression)options.Current);
ResourceExpressionType et = (ResourceExpressionType)e.NodeType;
switch (et)
{
case ResourceExpressionType.SkipQueryOption:
this.VisitQueryOptionExpression((SkipQueryOptionExpression)e);
break;
case ResourceExpressionType.TakeQueryOption:
this.VisitQueryOptionExpression((TakeQueryOptionExpression)e);
break;
case ResourceExpressionType.OrderByQueryOption:
this.VisitQueryOptionExpression((OrderByQueryOptionExpression)e);
break;
case ResourceExpressionType.FilterQueryOption:
this.VisitQueryOptionExpression((FilterQueryOptionExpression)e);
break;
case ResourceExpressionType.ApplyQueryOption:
this.VisitQueryOptionExpression((ApplyQueryOptionExpression)e);
break;
default:
Debug.Assert(false, "Unexpected expression type " + ((int)et).ToString(CultureInfo.InvariantCulture));
break;
}
}
}
if (re.ExpandPaths.Count > 0)
{
this.VisitExpandOptions(re.ExpandPaths);
}
if (re.Projection != null && re.Projection.Paths.Count > 0)
{
this.VisitProjectionPaths(re.Projection.Paths);
}
if (re.CountOption == CountOption.CountQueryTrue)
{
this.VisitCountQueryOptions(true);
}
if (re.CountOption == CountOption.CountQueryFalse)
{
this.VisitCountQueryOptions(false);
}
if (re.CustomQueryOptions.Count > 0)
{
this.VisitCustomQueryOptions(re.CustomQueryOptions);
}
this.AppendCachedQueryOptionsToUriBuilder();
}
}
/// <summary>
/// Populates the analyser type for column.
/// </summary>
/// <param name="report">The report.</param>
/// <param name="entityType">The resource type returned if the analyser refers to a resource expression.</param>
/// <param name="reportExpression">The report expression.</param>
/// <param name="reportAnalyserColumn">The report analyser column.</param>
private static void PopulateAnalyserTypeForColumn(Report report, EntityType entityType, ReportExpression reportExpression, ReportAnalyserColumn reportAnalyserColumn)
{
reportAnalyserColumn.AnalyserType = reportAnalyserColumn.Type.GetDisplayName();
if (reportExpression.Is <StructureViewExpression>())
{
reportAnalyserColumn.AnalyserType = StructureLevelsType.DisplayName;
reportAnalyserColumn.DefaultOperator = Structured.ConditionType.AnyBelowStructureLevel;
var expression = reportExpression.As <StructureViewExpression>();
var resReportNode = expression.StructureViewExpressionSourceNode.As <ResourceReportNode>();
var eType = resReportNode.ResourceReportNodeType;
reportAnalyserColumn.TypeId = eType.Id;
return;
}
if (!reportExpression.Is <NodeExpression>())
{
return;
}
NodeExpression nodeExpression = reportExpression.As <NodeExpression>();
if (!nodeExpression.SourceNode.Is <ResourceReportNode>())
{
return;
}
bool isNameColumnForType = false;
if (reportExpression.Is <FieldExpression>())
{
var fieldExpression = reportExpression.As <FieldExpression>();
if (fieldExpression.FieldExpressionField.Alias != "core:name")
{
return;
}
long sourceId = fieldExpression.SourceNode != null ? fieldExpression.SourceNode.Id : 0;
long rootId = report.RootNode != null ? report.RootNode.Id : 0;
isNameColumnForType = (sourceId == rootId) && (sourceId != 0);
}
reportAnalyserColumn.IsNameColumnForType = isNameColumnForType;
ResourceReportNode resourceReportNode = nodeExpression.SourceNode.As <ResourceReportNode>( );
RelationshipReportNode relationshipReportNode = nodeExpression.SourceNode.As <RelationshipReportNode>( );
if (entityType == null)
{
// Need to be able accept entityType as an argument, e.g. if it is from a script column
// But also need to be able to read it from the node, e.g. if it is the root name column. Messed up.
entityType = resourceReportNode.ResourceReportNodeType;
if (entityType == null)
{
return;
}
}
ResourceExpression resourceExpression = reportExpression.As <ResourceExpression>();
// Handle "Type" types
//if the resource type is "Type", add current parent node type and descendant types' id as filtered entity ids (bug 24859)
//Update: only the forward relationship is "isOfType", the "type" list will be restricted. (bug 27862)
if (entityType.Alias == "core:type" &&
relationshipReportNode?.FollowRelationship?.Alias == "core:isOfType"
)
{
AggregateReportNode parentAggregatedNode = resourceReportNode.ParentAggregatedNode;
ReportNode parentReportNode = parentAggregatedNode != null ? parentAggregatedNode.GroupedNode : resourceReportNode.ParentReportNode;
ResourceReportNode parentResourceReportNode = parentReportNode != null?parentReportNode.As <ResourceReportNode>() : null;
if (parentResourceReportNode != null && parentResourceReportNode.ResourceReportNodeType != null)
{
reportAnalyserColumn.FilteredEntityIds = PerTenantEntityTypeCache.Instance.GetDescendantsAndSelf(
parentResourceReportNode.ResourceReportNodeType.Id).ToArray();
}
}
// Handle "User" and "Person" types
if (PerTenantEntityTypeCache.Instance.IsDerivedFrom(entityType.Id, "core:person") ||
PerTenantEntityTypeCache.Instance.IsDerivedFrom(entityType.Id, "core:userAccount"))
{
// If this is a relationship or calc then make it as a user inline relationship otherwise a simple user string.
reportAnalyserColumn.AnalyserType = nodeExpression.SourceNode.Is <FieldExpression>( ) ? "UserString" : "UserInlineRelationship";
return;
}
// Treat the root 'Name' column like a lookup, so we get the 'Any Of', 'Any Except' options.
if (isNameColumnForType)
{
reportAnalyserColumn.AnalyserType = "InlineRelationship";
reportAnalyserColumn.TypeId = entityType.Id;
}
}
/// <summary>
/// Returns an <see cref="InputReferenceExpression"/> that references the specified resource,
/// and also adds the the resource to the hashset of resources that were referenced by the
/// expression that is being rebound.
/// </summary>
/// <param name="resource">The resource for which a reference was found</param>
/// <returns>An InputReferenceExpression that represents a reference to the specified resource</returns>
private Expression CreateReference(ResourceExpression resource)
{
this.referencedInputs.Add(resource);
return(resource.CreateReference());
}
/// <summary>
/// Constructs a new InputBinder based on the specified input resources, which is represented by the specified ParameterExpression.
/// </summary>
/// <param name="resource">The current input resource from which valid references must start</param>
/// <param name="setReferenceParam">The parameter that must be referenced in order to refer to the specified input resources</param>
private InputBinder(ResourceExpression resource, ParameterExpression setReferenceParam)
{
this.input = resource;
this.inputResource = resource as QueryableResourceExpression;
this.inputParameter = setReferenceParam;
}
/// <summary>
/// TODO: Refactor
/// </summary>
internal static void CaptureMetadata(StructuredQuery query, QuerySettings settings, QueryResult result, DataTable dataTable)
{
if (settings.SupportClientAggregate)
{
int totalGroupedColumns = settings.ClientAggregate.GroupedColumns?.Count ?? 0;
int totalColumns = totalGroupedColumns + settings.ClientAggregate.AggregatedColumns.Count;
for (int index = 0; index < totalColumns; index++)
{
int columnIndex;
DataColumn tableColumn = dataTable.Columns[index];
if (index < totalGroupedColumns)
{
columnIndex = index;
if (settings.ClientAggregate.GroupedColumns != null)
{
tableColumn.ExtendedProperties["ColumnId"] = settings.ClientAggregate.GroupedColumns[columnIndex].ReportColumnId;
}
}
else
{
columnIndex = index - totalGroupedColumns;
if (settings.ClientAggregate.AggregatedColumns != null)
{
tableColumn.ExtendedProperties["ColumnId"] = settings.ClientAggregate.AggregatedColumns[columnIndex].ReportColumnId;
}
}
tableColumn.ExtendedProperties["ColumnIndex"] = columnIndex;
}
result.AggregateDataTable = dataTable;
}
else
{
int index = 0;
foreach (SelectColumn selectColumn in query.SelectColumns)
{
// Set column ID into data table column object (why??)
DataColumn tableColumn = dataTable.Columns[index];
tableColumn.ExtendedProperties["ColumnId"] = selectColumn.ColumnId;
// Set data type into result column info, for columns (e.g. calculated) where we can only determine it dynamically at the moment
ResultColumn resultColumn = result.Columns[index];
if (resultColumn.ColumnType == null)
{
if (selectColumn.Expression is AggregateExpression && ((AggregateExpression)selectColumn.Expression).Expression is ResourceExpression)
{
if (((AggregateExpression)selectColumn.Expression).AggregateMethod == AggregateMethod.Count ||
((AggregateExpression)selectColumn.Expression).AggregateMethod == AggregateMethod.CountUniqueItems ||
((AggregateExpression)selectColumn.Expression).AggregateMethod == AggregateMethod.CountUniqueNotBlanks ||
((AggregateExpression)selectColumn.Expression).AggregateMethod == AggregateMethod.CountWithValues)
{
resultColumn.ColumnType = new EDC.Database.Types.Int32Type();
}
else
{
resultColumn.ColumnType = ((ResourceExpression)((AggregateExpression)selectColumn.Expression).Expression).CastType;
resultColumn.IsResource = true;
if (resultColumn.ColumnType == null)
{
resultColumn.ColumnType = new EDC.Database.Types.ChoiceRelationshipType();
}
}
}
else if (selectColumn.Expression is AggregateExpression && ((AggregateExpression)selectColumn.Expression).Expression is ResourceDataColumn)
{
if (((AggregateExpression)selectColumn.Expression).AggregateMethod == AggregateMethod.Count ||
((AggregateExpression)selectColumn.Expression).AggregateMethod == AggregateMethod.CountUniqueItems ||
((AggregateExpression)selectColumn.Expression).AggregateMethod == AggregateMethod.CountUniqueNotBlanks ||
((AggregateExpression)selectColumn.Expression).AggregateMethod == AggregateMethod.CountWithValues)
{
resultColumn.ColumnType = new EDC.Database.Types.Int32Type();
}
else
{
resultColumn.ColumnType = ((ResourceDataColumn)((AggregateExpression)selectColumn.Expression).Expression).CastType;
//resultColumn.IsResource = true;
}
}
else if (selectColumn.Expression is StructureViewExpression)
{
resultColumn.ColumnType = new EDC.Database.Types.StructureLevelsType();
}
else
{
ResourceExpression resourceExpression = selectColumn.Expression as ResourceExpression;
if (resourceExpression != null)
{
resultColumn.ColumnType = resourceExpression.CastType;
resultColumn.IsResource = true;
}
else
{
resultColumn.ColumnType = DatabaseType.ConvertFromType(tableColumn.DataType);
}
}
}
index++;
}
result.DataTable = dataTable;
}
}
