protected void Visit(ExpNode caller, ExpNode node, XmlElement parentNode)
{
nodeStack.Push(node);
if (node == null)
{
throw new ArgumentNullException("node");
}
if (node is KeyedResourceInstance && (!(node is AssociationResourceInstance)))
{
KeyedResourceInstance e = (KeyedResourceInstance)node;
CreateEntryElement(e, parentNode);
}
else if (node is AssociationResourceInstance)
{
AssociationResourceInstance e = (AssociationResourceInstance)node;
if (caller == null)
{
CreateLinkPayload(e, parentNode);
}
else
{
CreateBinding(e, parentNode);
}
}
//Below are two special cases
else if (caller == null && node is ResourceInstanceSimpleProperty)
{
this.VisitResourceInstanceSimpleProperty(node as ResourceInstanceSimpleProperty, parentNode);
}
else if (caller == null && node is ResourceInstanceComplexProperty)
{
this.VisitResourceInstanceComplexProperty(node as ResourceInstanceComplexProperty, parentNode);
}
else if (caller == null && node is ResourceInstanceNavRefProperty)
{
ResourceInstanceNavRefProperty navRef = node as ResourceInstanceNavRefProperty;
AssociationResourceInstance associationResourceInstance = navRef.TreeNode as AssociationResourceInstance;
if (associationResourceInstance != null && associationResourceInstance.Operation == AssociationOperation.Remove)
{
this.CreateUnBinding(parentNode);
}
else
{
throw new Exception("Unknown node type:" + navRef.TreeNode.GetType());
}
}
else if (caller == null && node is ResourceInstanceCollection)
{
ResourceInstanceCollection collection = node as ResourceInstanceCollection;
CreateLinksElement(collection, null);
}
else
{
throw new Exception("Unknown node type: " + node.GetType());
}
nodeStack.Pop();
}
protected virtual string Visit(ExpNode caller, ExpNode node)
{
if (node == null)
{
throw new ArgumentNullException("node");
}
if (node is KeyedResourceInstance && (!(node is AssociationResourceInstance)))
{
KeyedResourceInstance e = (KeyedResourceInstance)node;
_resourceType = this.GetResourceType(e);
_typeStack.Push(_resourceType);
string properties = null;
if (this.RequestVerb == RequestVerb.Post &&
e.ResourceInstanceKey != null)
{
foreach (ResourceInstanceProperty resourceProperty in e.ResourceInstanceKey.KeyProperties)
{
if (properties != null)
{
properties += "," + this.Visit(e, resourceProperty);
}
else
{
properties = this.Visit(e, resourceProperty);
}
}
}
foreach (ResourceInstanceProperty resourceProperty in e.Properties)
{
if (properties != null)
{
properties += "," + this.Visit(e, resourceProperty);
}
else
{
properties = this.Visit(e, resourceProperty);
}
}
_resourceType = _typeStack.Pop();
string typeAttribute = null;
//if( Workspace.DataLayerProviderKind == DataLayerProviderKind.NonClr )
// typeAttribute = String.Format("type:\"{0}\" ", e.ResourceTypeName);
//else
typeAttribute = String.Format("type:\"{0}.{1}\" ", this.Workspace.ContextNamespace, e.TypeName);
string uriAttribute = null;
string metadataString = null;
if (e.ResourceInstanceKey != null && this.RequestVerb != RequestVerb.Post)
{
uriAttribute = String.Format("uri:\"{0}\"", CreateCanonicalUri(e.ResourceInstanceKey));
}
if (uriAttribute != null)
{
if (e.IncludeTypeMetadataHint)
{
metadataString = String.Format("__metadata: {{ {0}, {1}}}", typeAttribute, uriAttribute);
}
else
{
metadataString = String.Format("__metadata: {{ {0} }}", uriAttribute);
}
}
else
{
if (e.IncludeTypeMetadataHint)
{
metadataString = String.Format("__metadata: {{ {0} }}", typeAttribute);
}
}
//if (uriAttribute != null && e.IncludeTypeMetadataHint)
// metadataString = String.Format("__metadata: {{ {0}, {1}}}", typeAttribute, uriAttribute);
//else if (e.IncludeTypeMetadataHint && uriAttribute == null)
// metadataString = String.Format("__metadata: {{ {0} }}", typeAttribute);
string payload = null;
if (properties == null)
{
payload = ApplyErrors(node, String.Format("{{{0}}}", metadataString));
}
else
if (metadataString != null)
{
payload = ApplyErrors(node, String.Format("{{{0}, {1}}}", metadataString, properties));
}
else
{
payload = ApplyErrors(node, String.Format("{{{0}}}", properties));
}
return(payload);
}
else if (node is AssociationResourceInstance)
{
AssociationResourceInstance e = (AssociationResourceInstance)node;
if (e.Operation == AssociationOperation.Add)
{
string uri = CreateCanonicalUri(e.ResourceInstanceKey);
string payload = null;
if (caller == null)
{
payload = "{ uri:\"" + uri + "\"}";
}
else if (e.IncludeTypeInBind)
{
payload = String.Format("__metadata: {{ uri:\"{0}\", type:\"{1}.{2}\"}}", uri, this.Workspace.ContextNamespace, e.ResourceInstanceKey.ResourceTypeName);
}
else
{
payload = String.Format("__metadata: {{ uri:\"{0}\"}}", uri);
}
return(ApplyErrors(node, payload));
}
else
{
string navString = null;
if (caller != null)
{
navString = e.Name + ": null";
}
else
{
navString = "{ uri: null }";
}
return(ApplyErrors(node, navString));
}
}
/*
* else if (node is ResourceInstanceKey)
* {
* ResourceInstanceKey e = (ResourceInstanceKey)node;
* if (RequestVerb == RequestVerb.Post)
* {
* string payload = String.Format("__metadata: {{ type:\"{0}.{1}\" }}", this.Workspace.ContextNamespace, e.ResourceTypeName);
* if (e.KeyProperties != null)
* {
* foreach (ResourceInstanceProperty resourceProperty in e.KeyProperties)
* {
* payload += String.Format(", {0}", this.Visit(e, resourceProperty));
* }
* }
* return ApplyErrors(node, payload);
* }
* else if (RequestVerb == RequestVerb.Put)
* {
* string keyValues = WriteCommaDelimitedKeyValues(e);
*
* string payloadUri = String.Format("/{0}({1})", e.ResourceSetName, keyValues);
* return ApplyErrors(node, String.Format("__metadata: {{uri:\"{0}\" }}", payloadUri));
* }
* throw new ArgumentException("Request Verb is incorrect can't build an update payload:" + this.RequestVerb.ToString());
* }*/
else if (node is ResourceInstanceSimpleProperty)
{
ResourceInstanceSimpleProperty e = (ResourceInstanceSimpleProperty)node;
Type clrType = e.ClrType;
object val = e.PropertyValue;
if (val != null)
{
clrType = val.GetType();
}
if (e.CreateDollarValue)
{
if (val == null)
{
return(null);
}
else if (clrType == typeof(byte[]))
{
return((new System.Text.UTF8Encoding()).GetString((byte[])val));
}
else
{
return(AstoriaUnitTests.Data.TypeData.XmlValueFromObject(val));
}
}
string jsonStringValue;
if (clrType == typeof(DateTime) && val is DateTime)
{
if (e.UseTickCountForJsonDateTime)
{
jsonStringValue = "'" + JsonPrimitiveTypesUtil.GetJsonDateTimeStringValue((DateTime)val) + "'";
}
else
{
jsonStringValue = JsonPrimitiveTypesUtil.DateTimeToString(val);
}
}
else
{
jsonStringValue = JsonPrimitiveTypesUtil.PrimitiveToString(val, clrType);
if (clrType == typeof(double) || clrType == typeof(float))
{
// PrimitiveToString will lose the trailing .0 if its a whole number
long temp;
if (long.TryParse(jsonStringValue, out temp))
{
jsonStringValue += ".0";
}
}
}
if (caller == null)
{
return("{" + ApplyErrors(node, String.Format("{0}: {1}", e.Name, jsonStringValue)) + "}");
}
else
{
return(ApplyErrors(node, String.Format("{0}: {1}", e.Name, jsonStringValue)));
}
}
else if (node is ResourceInstanceComplexProperty)
{
ResourceInstanceComplexProperty e = (ResourceInstanceComplexProperty)node;
string properties = null;
if (e.IncludeTypeMetadataHint)
{
properties += String.Format("__metadata: {{ type:\"{0}.{1}\" }}", this.Workspace.ContextNamespace, e.TypeName);
}
foreach (ResourceInstanceProperty resourceProperty in e.ComplexResourceInstance.Properties)
{
if (string.IsNullOrEmpty(properties))
{
properties += this.Visit(e, resourceProperty);
}
else
{
properties += "," + this.Visit(e, resourceProperty);
}
}
string results = null;
if (caller == null)
{
results = "{" + e.Name + ": {" + properties + "}" + "}";
}
else
{
results = e.Name + ": {" + properties + "}";
}
return(ApplyErrors(node, results));
}
else if (node is ResourceInstanceNavRefProperty)
{
ResourceInstanceNavRefProperty e = (ResourceInstanceNavRefProperty)node;
AssociationResourceInstance associationResourceInstance = e.TreeNode as AssociationResourceInstance;
string navString = null;
if ((associationResourceInstance != null && associationResourceInstance.Operation != AssociationOperation.Remove))
{
navString = e.Name + ": {";
navString += this.Visit(e, e.TreeNode);
navString += "}";
}
else if (associationResourceInstance != null && associationResourceInstance.Operation == AssociationOperation.Remove)
{
if (caller != null)
{
navString = e.Name + ": null";
}
else
{
navString = "null";
}
}
else
{
navString = e.Name + ": ";
navString += this.Visit(e, e.TreeNode);
}
return(ApplyErrors(node, navString));
}
else if (node is ResourceInstanceNavColProperty)
{
ResourceInstanceNavColProperty e = (ResourceInstanceNavColProperty)node;
//string navString = String.Format("{0}: {", e.Name);
string navString = e.Name + ": [";
foreach (NamedNode namedNode in e.Collection.NodeList)
{
if (!(namedNode is AssociationResourceInstance))
{
navString += this.Visit(e, namedNode) + ",";
}
else
{
navString += "{" + this.Visit(e, namedNode) + "},";
}
}
navString = navString.TrimEnd(',');
navString += "]";
return(ApplyErrors(node, navString));
}
else
{
throw new Exception("Unknown node type: " + node.GetType());
}
}
protected override String Visit(ExpNode caller, ExpNode node)
{
if (node is ProjectExpression)
{
ProjectExpression e = (ProjectExpression)node;
if (e.Projections.Count == 0)
{
return(String.Format("{0}",
this.Visit(e, e.Input)
));
}
else if (e.Projections.Count == 1)
{
if (e.Projections[0] is PropertyExpression)
{
return(String.Format("{0}/{1}",
this.Visit(e, e.Input),
this.Visit(e, e.Projections[0])
));
}
}
else
{
throw new Exception("More than 1 projection, invalid");
}
}
else if (node is ServiceOperationExpression)
{
AstoriaTestLog.WriteLine("Calling Service Operation");
ServiceOperationExpression e = (ServiceOperationExpression)node;
string serviceOp = this.Visit(e, e.Input);
AstoriaTestLog.WriteLine(serviceOp);
StringBuilder sbParametersString = new StringBuilder();
if (!serviceOp.Contains("?"))
{
sbParametersString.Append("?");
}
for (int index = 0; index < e.Arguments.Length; index++)
{
ServiceOperationParameterExpression parameter = e.Arguments[index];
if (index > 0)
{
sbParametersString.Append("&");
}
string strLiteralString = CreateKeyStringValue(parameter.ParameterValue);
sbParametersString.AppendFormat("{0}={1}", parameter.ParameterName, strLiteralString);
}
return(String.Format("{0}{1}", serviceOp, sbParametersString.ToString()));
}
else if (node is ScanExpression)
{
ScanExpression e = (ScanExpression)node;
if (e.Input is VariableExpression && ((VariableExpression)e.Input).Variable is ResourceContainer)
{
return(String.Format("{0}",
this.Visit(e, e.Input)
));
}
throw new Exception("Unsupported on in scan expression");
}
else if (node is PredicateExpression)
{
PredicateExpression e = (PredicateExpression)node;
KeyExpression key = e.Predicate as KeyExpression;
if (key != null)
{
return(String.Format("{0}({1})",
this.Visit(e, e.Input),
this.Visit(e, e.Predicate)
));
}
else
{
return(String.Format("{0}?$filter={1}",
this.Visit(e, e.Input),
this.Visit(e, e.Predicate)
));
}
}
else if (node is CountExpression)
{
CountExpression e = (CountExpression)node;
string sCount = "";
string visit = "";
if (!e.IsInline)
{
visit = this.Visit(e, e.Input);
sCount = string.Format("{0}/$count", visit);
}
else
{
visit = this.Visit(e, e.Input);
if (visit.IndexOf("?$") == -1)
{
sCount = string.Format("{0}?$inlinecount={1}", visit, e.CountKind);
}
else
{
sCount = string.Format("{0}&$inlinecount={1}", visit, e.CountKind);
}
}
return(sCount);
}
else if (node is NewExpression)
{
NewExpression e = (NewExpression)node;
string uri = this.Visit(e, e.Input);
ExpNode[] pe = new ExpNode[] { };
List <ExpNode> nodes = new List <ExpNode>();
foreach (ExpNode parameter in e.Arguments)
{
nodes.Add(parameter as ExpNode);
}
pe = nodes.ToArray();
string _select = String.Format("{0}", this.Visit(e, pe[0]));
if (nodes.Count > 1)
{
for (int j = 1; j < nodes.Count; j++)
{
_select = String.Format("{0},{1}", _select, this.Visit(e, pe[j]));
}
}
if (uri.IndexOf("?$") == -1)
{
return(string.Format("{0}?$select={1}", uri, _select));
}
else
{
return(string.Format("{0}&$select={1}", uri, _select));
}
}
else if (node is MemberBindExpression)
{
return(this.Visit(node, ((MemberBindExpression)node).SourceProperty));
}
else if (node is TopExpression)
{
TopExpression e = (TopExpression)node;
string visit = this.Visit(e, e.Input);
if (visit.IndexOf("?$") == -1)
{
return(string.Format("{0}?$top={1}", visit, e.Predicate));
}
else
{
return(string.Format("{0}&$top={1}", visit, e.Predicate));
}
}
else if (node is SkipExpression)
{
SkipExpression e = (SkipExpression)node;
string visit = this.Visit(e, e.Input);
if (visit.IndexOf("?$") == -1)
{
return(string.Format("{0}?$skip={1}", visit, e.Predicate));
}
else
{
return(string.Format("{0}&$skip={1}", visit, e.Predicate));
}
}
else if (node is OrderByExpression)
{
OrderByExpression e = (OrderByExpression)node;
string ordervalue = String.Empty;
int i = 0;
string visit = this.Visit(e, e.Input);
if (e.ExcludeFromUri)
{
return(visit);
}
string propVisit = this.Visit(e, e.PropertiesExp[0]);
switch (e.AscDesc)
{
case true:
if (visit.IndexOf("?$") == -1)
{
ordervalue = String.Format("{0}?$orderby={1}", visit, propVisit);
}
else
{
ordervalue = String.Format("{0}&$orderby={1}", visit, propVisit);
}
break;
case false:
if (visit.IndexOf("?$") == -1)
{
ordervalue = String.Format("{0}?$orderby={1} desc", visit, propVisit);
}
else
{
ordervalue = String.Format("{0}&$orderby={1} desc", visit, propVisit);
}
break;
}
;
if (e.PropertiesExp.Length > 0)
{
for (i++; i < e.PropertiesExp.Length; i++)
{
String nextValue = this.Visit(e, e.PropertiesExp[i]);
nextValue = String.Format("{0}", nextValue);
switch (e.AscDesc)
{
case true:
ordervalue = String.Format("{0},{1}", ordervalue, nextValue);
break;
case false:
ordervalue = String.Format("{0},{1} desc", ordervalue, nextValue);
break;
}
}
}
return(ordervalue);
}
else if (node is ThenByExpression)
{
ThenByExpression e = (ThenByExpression)node;
string ordervalue = String.Empty;
int i = 0;
string visit = this.Visit(e, e.Input);
if (e.ExcludeFromUri)
{
return(visit);
}
switch (e.AscDesc)
{
case true:
ordervalue = String.Format("{0},{1}", visit, e.Properties[0].Name);
break;
case false:
ordervalue = String.Format("{0},{1} desc", visit, e.Properties[0].Name);
break;
}
if (e.Properties.Length > 0)
{
for (i++; i < e.Properties.Length; i++)
{
String nextValue = e.Properties[i].Name;
nextValue = String.Format("{0}", nextValue);
switch (e.AscDesc)
{
case true:
ordervalue = String.Format("{0},{1}", ordervalue, nextValue);
break;
case false:
ordervalue = String.Format("{0},{1} desc", ordervalue, nextValue);
break;
}
}
}
return(ordervalue);
}
else if (node is ExpandExpression)
{
ExpandExpression e = (ExpandExpression)node;
string uri = this.Visit(e, e.Input);
string expand = String.Format("{0}", this.Visit(e, e.PropertiesExp[0]));
if (e.Properties.Length > 1)
{
for (int i = 1; i < e.Properties.Length; i++)
{
expand = String.Format("{0},{1}", expand, this.Visit(e, e.PropertiesExp[i]));
}
}
if (uri.IndexOf("?$") == -1)
{
return(string.Format("{0}?$expand={1}", uri, expand));
}
else
{
return(string.Format("{0}&$expand={1}", uri, expand));
}
}
else if (node is NavigationExpression)
{
NavigationExpression e = (NavigationExpression)node;
if (!e.IsLink)
{
return(String.Format("{0}/{1}", this.Visit(e, e.Input), this.Visit(e, e.PropertyExp)));
}
else
{
return(String.Format("{0}/{1}/$ref", this.Visit(e, e.Input), this.Visit(e, e.PropertyExp)));
}
}
else if (node is KeyExpression)
{
KeyExpression key = node as KeyExpression;
return(CreateKeyString(key));
}
else if (node is NestedPropertyExpression)
{
NestedPropertyExpression e = (NestedPropertyExpression)node;
string enitySetname = e.Name;
string nestedProperty = "";
foreach (PropertyExpression p in e.PropertyExpressions)
{
string interim = this.Visit(e, p);
//AstoriaTestLog.WriteLine(interim);
if (p.ValueOnly)
{
nestedProperty = String.Format("{0}/{1}/{2},", nestedProperty, enitySetname, interim + "/$value").TrimStart('/');
}
else
{
nestedProperty = String.Format("{0}/{1}/{2},", nestedProperty, enitySetname, interim).TrimStart('/');
}
}
return(nestedProperty.TrimEnd(',').Replace(",/", ","));
}
else if (node is PropertyExpression)
{
PropertyExpression e = (PropertyExpression)node;
if (e.ValueOnly)
{
return(e.Property.Name + "/$value");
}
else
{
return(e.Property.Name);
}
}
else if (node is VariableExpression)
{
VariableExpression e = (VariableExpression)node;
return(e.Variable.Name);
}
if (node is LogicalExpression)
{
LogicalExpression e = (LogicalExpression)node;
string left = this.Visit(e, e.Left);
string right = null;
if (e.Operator != LogicalOperator.Not)
{
right = this.Visit(e, e.Right);
}
string logical;
switch (e.Operator)
{
case LogicalOperator.And:
logical = string.Format("{0} and {1}", left, right);
break;
case LogicalOperator.Or:
logical = string.Format("{0} or {1}", left, right);
break;
case LogicalOperator.Not:
logical = string.Format("not {0}", left);
break;
default:
throw new Exception("Unhandled Comparison Type: " + e.Operator);
}
return(logical);
}
else if (node is ComparisonExpression)
{
ComparisonExpression e = (ComparisonExpression)node;
String left = this.Visit(e, e.Left);
String right = this.Visit(e, e.Right);
switch (e.Operator)
{
case ComparisonOperator.Equal:
return(String.Format("{0} eq {1}", left, right));
case ComparisonOperator.NotEqual:
return(String.Format("{0} ne {1}", left, right));
case ComparisonOperator.GreaterThan:
return(String.Format("{0} gt {1}", left, right));
case ComparisonOperator.GreaterThanOrEqual:
return(String.Format("{0} ge {1}", left, right));
case ComparisonOperator.LessThan:
return(String.Format("{0} lt {1}", left, right));
case ComparisonOperator.LessThanOrEqual:
return(String.Format("{0} le {1}", left, right));
default:
throw new Exception("Unhandled Comparison Type: " + e.Operator);
}
;
}
else if (node is IsOfExpression || node is CastExpression)
{
ExpNode target;
NodeType targetType;
string operation;
if (node is IsOfExpression)
{
IsOfExpression e = (IsOfExpression)node;
operation = "isof";
target = e.Target;
targetType = e.TargetType;
}
else
{
CastExpression e = (CastExpression)node;
operation = "cast";
target = e.Target;
targetType = e.TargetType;
}
string targetTypeName = targetType.FullName;
if (targetType is PrimitiveType)
{
targetTypeName = TypeData.FindForType(targetType.ClrType).GetEdmTypeName();
}
if (target == null)
{
return(String.Format("{0}('{1}')", operation, targetTypeName));
}
else
{
return(String.Format("{0}({1}, '{2}')", operation, this.Visit(node, target), targetTypeName));
}
}
else if (node is ArithmeticExpression)
{
ArithmeticExpression e = (ArithmeticExpression)node;
String left = this.Visit(e, e.Left);
String right = this.Visit(e, e.Right);
switch (e.Operator)
{
case ArithmeticOperator.Add:
return(String.Format("{0} add {1}", left, right));
case ArithmeticOperator.Div:
return(String.Format("{0} div {1}", left, right));
case ArithmeticOperator.Mod:
return(String.Format("{0} mod {1}", left, right));
case ArithmeticOperator.Mult:
return(String.Format("{0} mul {1}", left, right));
case ArithmeticOperator.Sub:
return(String.Format("{0} sub {1}", left, right));
default:
throw new Exception("Unhandled Arithmetic Type: " + e.Operator);
}
;
}
else if (node is MethodExpression)
{
MethodExpression e = (MethodExpression)node;
return(BuildMemberOrMethodExpression(node, e.Caller, e.Arguments, e.Name));
}
else if (node is MemberExpression)
{
MemberExpression e = (MemberExpression)node;
return(BuildMemberOrMethodExpression(node, e.Caller, e.Arguments, e.Name));
}
else if (node is ConstantExpression)
{
ConstantExpression e = (ConstantExpression)node;
object value = e.Value.ClrValue;
string val = TypeData.FormatForKey(value, this.UseSmallCasing, false);
if (this.EscapeUriValues)
{
// FormatForKey already does this for doubles that don't have the D
if (!(value is double) || Versioning.Server.SupportsV2Features)
{
val = Uri.EscapeDataString(val);
}
}
if (value == null)
{
val = "null";
}
else if (!(value is String))
{
val = val.Replace("+", "").Replace("%2B", "");
}
return(val);
}
else if (node is NegateExpression)
{
NegateExpression e = (NegateExpression)node;
return("-(" + this.Visit(e, e.Argument) + ")");
}
else if (node is FirstExpression)
{
FirstExpression first = node as FirstExpression;
return(this.Visit(first, first.Input));
}
else if (node is FirstOrDefaultExpression)
{
FirstOrDefaultExpression first = node as FirstOrDefaultExpression;
return(this.Visit(first, first.Input));
}
else if (node is SingleExpression)
{
SingleExpression first = node as SingleExpression;
return(this.Visit(first, first.Input));
}
else if (node is SingleOrDefaultExpression)
{
SingleOrDefaultExpression first = node as SingleOrDefaultExpression;
return(this.Visit(first, first.Input));
}
else
{
throw new Exception(this.GetType().Name + " Unhandled Node: " + node.GetType().Name);
}
}
