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);
}
}
private string Visit(Node caller, Node node)
{
if (node is ProjectExpression)
{
ProjectExpression e = (ProjectExpression)node;
if (e.Projections.Count == 0)
{
return(String.Format("<ProjectExpression><Input>{0}</Input></ProjectExpression>", this.Visit(e, e.Input)));
}
else if (e.Projections.Count == 1)
{
//if (e.Projections[0] is PropertyExpression)
return(String.Format("<ProjectExpression><Input>{0}</Input><ProjectionZero>{1}</ProjectionZero></ProjectExpression>", this.Visit(e, e.Input), this.Visit(e, e.Projections[0])));
//else if (e.Projections[0] is ConstantExpression)
// return String.Format("<ProjectExpression><Input>{0}</Input>{1}</ProjectExpression>", this.Visit(e, e.Input), this.Visit(e, e.Projections[0]));
//else return String.Format("encountered {0}", e.Projections[0].Name);
}
else
{
throw new Exception("More than 1 projection, invalid");
}
}
else if (node is ComparisonExpression)
{
return(WriteBinaryExpressionXml("ComparisonExpression", node));
}
else if (node is ArithmeticExpression)
{
return(WriteBinaryExpressionXml("ArithmeticException", node));
}
else if (node is ScanExpression)
{
ScanExpression e = (ScanExpression)node;
if (e.Input is VariableExpression && ((VariableExpression)e.Input).Variable is ResourceContainer)
{
return(String.Format("<ScanExpression><Input>{0}</Input></ScanExpression>", this.Visit(e, e.Input)));
}
throw new Exception("Unsupported on in scan expression");
}
else if (node is PredicateExpression)
{
PredicateExpression e = (PredicateExpression)node;
return(String.Format("<PredicateExpression><Input>{0}</Input><Predicate>{1}</Predicate></PredicateExpression>",
this.Visit(e, e.Input), this.Visit(e, e.Predicate)));
}
else if (node is NavigationExpression)
{
NavigationExpression e = (NavigationExpression)node;
return(String.Format("<NavigationExpression IsLink=\"{2}\"><Input>{0}</Input><PropertyExp>{1}</PropertyExp></NavigationExpression>", this.Visit(e, e.Input), this.Visit(e, e.PropertyExp), e.IsLink.ToString()));
}
else if (node is KeyExpression)
{
string keyExpressionString = BuildKeyExpressionXml((KeyExpression)node);
return(String.Format("<KeyExpression>{0}</KeyExpression>", keyExpressionString));
//UriQueryBuilder.CreateKeyString((KeyExpression)node, false));
}
else if (node is NestedPropertyExpression)
{
NestedPropertyExpression e = (NestedPropertyExpression)node;
string nestedProperty = "";
foreach (PropertyExpression p in e.PropertyExpressions)
{
nestedProperty += this.Visit(e, p);
}
return(String.Format("<NestedPropertyExpression>{0}</NestedPropertyExpression>", nestedProperty));
}
else if (node is PropertyExpression)
{
PropertyExpression e = (PropertyExpression)node;
return(String.Format("<PropertyExpression Name=\"{0}\" ValueOnly=\"{1}\" />", e.Property.Name, e.ValueOnly.ToString()));
}
else if (node is VariableExpression)
{
VariableExpression e = (VariableExpression)node;
ResourceContainer container = e.Variable as ResourceContainer;
return(String.Format("<VariableExpression Name=\"{0}\" Type=\"{1}\"/>", container.Name,
container.BaseType.ClrType != null ? container.BaseType.ClrType.FullName : container.BaseType.Name
));
}
else if (node is ConstantExpression)
{
ConstantExpression e = (ConstantExpression)node;
return(String.Format("<ConstantExpression Value=\"{0}\" Type=\"{1}\" />", e.Value.ClrValue, e.Value.ClrValue.GetType().FullName));
}
else if (node is ServiceContainer)
{
string containerString = null;
ServiceContainer e = (ServiceContainer)node;
foreach (ResourceContainer container in e.ResourceContainers)
{
containerString += this.Visit(e, container);
}
return(String.Format("<ServiceContainer Name=\"{0}\" Namespace=\"{1}\">{2}</ServiceContainer>", e.Name, e.Namespace, containerString));
}
else if (node is ResourceContainer)
{
string typeString = null;
ResourceContainer e = (ResourceContainer)node;
foreach (ResourceType type in e.ResourceTypes)
{
typeString += this.Visit(e, type);
}
return(String.Format("<ResourceContainer Name=\"{0}\" Namespace=\"{1}\">{2}</ResourceContainer>", e.Name, e.Namespace, typeString));
}
else if (node is ResourceType)
{
string propertyString = null;
ResourceType e = (ResourceType)node;
foreach (ResourceProperty property in e.Properties)
{
propertyString += this.Visit(e, property);
}
return(String.Format("<ResourceType Name=\"{0}\" Namespace=\"{1}\">{2}</ResourceType>", e.Name, e.Namespace, propertyString));
}
else if (node is ResourceProperty)
{
ResourceProperty e = (ResourceProperty)node;
return(String.Format("<ResourceProperty Name=\"{0}\" IsNavigation=\"{1}\" IsComplexType=\"{2}\" />", e.Name, e.IsNavigation, e.IsComplexType));
}
else
{
return(String.Format("<{0} name=\'{1}\'></{0}>", node.GetType().Name, node.Name));
}
}
public PropertyStepExpression(PropertyExpression property, PredicateExpression predicate) :
base(property, predicate)
{
}
public ContainerStepExpression(ResourceContainer container, PredicateExpression predicate) :
base(container, predicate)
{
}
public StepExpression(Node segment, PredicateExpression predicate) :
base(null)
{
_segment = segment;
_predicate = predicate;
}