private void _InitQueryables(XPathQueryableNavigator navigator, IDictionary <string, IList <XPathNavigator> > queryables, IDictionary <XName, XPathQueryableNode> visited)
{
visited.Add(XName.Get(LocalName, Namespace), this);
var subNodes = new List <XPathTypeNode>(ElementChildrenNodes);
subNodes.AddRange(AttributeChildrenNodes);
subNodes.AddRange(IgnoredChildrenNodes);
foreach (XPathTypeNode xptn in subNodes)
{
var xpqn = xptn as XPathQueryableNode;
if ((xpqn != null) && !visited.ContainsKey(XName.Get(xpqn.LocalName, xpqn.Namespace)))
{
xpqn._InitQueryables(navigator, queryables, visited);
}
}
foreach (CswQueryable cq in AssociatedQueryables)
{
if (!queryables.ContainsKey(cq.Name))
{
queryables.Add(cq.Name, new List <XPathNavigator>());
}
var n = (XPathQueryableNavigator)navigator.Clone();
n.MoveTo(this);
queryables[cq.Name].Add(n);
}
}
public override XPathNavigator Clone()
{
var ret=new XPathQueryableNavigator(this);
if (ret._Queryables==null)
ret._Queryables=Queryables;
return ret;
}
private void _InitQueryables(XPathQueryableNavigator navigator, IDictionary<string, IList<XPathNavigator>> queryables, IDictionary<XName, XPathQueryableNode> visited)
{
visited.Add(XName.Get(LocalName, Namespace), this);
var subNodes=new List<XPathTypeNode>(ElementChildrenNodes);
subNodes.AddRange(AttributeChildrenNodes);
subNodes.AddRange(IgnoredChildrenNodes);
foreach (XPathTypeNode xptn in subNodes)
{
var xpqn=xptn as XPathQueryableNode;
if ((xpqn!=null) && !visited.ContainsKey(XName.Get(xpqn.LocalName, xpqn.Namespace)))
xpqn._InitQueryables(navigator, queryables, visited);
}
foreach (CswQueryable cq in AssociatedQueryables)
{
if (!queryables.ContainsKey(cq.Name))
queryables.Add(cq.Name, new List<XPathNavigator>());
var n=(XPathQueryableNavigator)navigator.Clone();
n.MoveTo(this);
queryables[cq.Name].Add(n);
}
}
public override XPathNavigator Clone()
{
var ret = new XPathQueryableNavigator(this);
if (ret._Queryables == null)
{
ret._Queryables = Queryables;
}
return(ret);
}
protected XPathQueryableNavigator(XPathQueryableNavigator other):
base(other)
{
_Queryables=other._Queryables;
}
internal void InitQueryables(XPathQueryableNavigator navigator, IDictionary<string, IList<XPathNavigator>> queryables)
{
_InitQueryables(navigator, queryables, new Dictionary<XName, XPathQueryableNode>());
}
//TODO: compile LINQ expression?
internal IQueryable Where(IQueryable source, IEnumerable <Uri> ids, XmlNamespaceManager namespaceManager = null, IOperatorImplementationProvider operatorImplementationProvider = null)
{
var parameters = new ParameterExpression[] {
Expression.Parameter(source.ElementType)
};
var xpqn = new XPathQueryableNavigator(source.ElementType, namespaceManager);
XPathNodeIterator xpni = xpqn.Select(CoreQueryable.Identifier.Name, namespaceManager);
if (xpni.MoveNext())
{
var idn = (XPathQueryableNavigator)xpni.Current;
Type idType = idn.Type;
TypeConverter converter = GetIdentifierUriConverter(idType);
// Convert ids from Uris to identifier type
// urip => (idType)converter.ConvertTo(urip, idType)
var urip = Expression.Parameter(typeof(Uri));
var conex = Expression.Lambda(
typeof(Func <,>).MakeGenericType(typeof(Uri), idType),
Expression.Convert(
Expression.Call(
Expression.Constant(converter),
"ConvertTo",
null,
urip,
Expression.Constant(idType)
),
idType
),
urip
);
// var convertedIds=ids.Select<Uri, idType>(uri => (idType)converter.ConvertTo(uri, idType))
var urilistp = Expression.Parameter(typeof(IEnumerable <Uri>));
var convertids = Expression.Lambda(
Expression.Call(
typeof(Enumerable),
"Select",
new Type[] { typeof(Uri), idType },
Expression.Constant(ids),
conex
),
urilistp
).Compile();
var convertedIds = convertids.DynamicInvoke(ids);
// Creates the Where clause
LambdaExpression lambda = Expression.Lambda(
Expression.Call(
typeof(Enumerable),
"Contains",
new Type[] { idType },
Expression.Constant(convertedIds),
idn.CreateExpression(parameters[0])
),
parameters
);
return(source.Provider.CreateQuery(
Expression.Call(
typeof(Queryable),
"Where",
new Type[] { source.ElementType },
source.Expression,
Expression.Quote(lambda)
)
));
}
throw new InvalidOperationException();
}
internal void InitQueryables(XPathQueryableNavigator navigator, IDictionary <string, IList <XPathNavigator> > queryables)
{
_InitQueryables(navigator, queryables, new Dictionary <XName, XPathQueryableNode>());
}
protected XPathQueryableNavigator(XPathQueryableNavigator other) :
base(other)
{
_Queryables = other._Queryables;
}
