protected IEnumerable <TType> GetResults(ParameterBuilder paramaters)
{
var keyValuePairs = paramaters.Build();
return(client.Execute <TType>(keyValuePairs));
}
protected IEnumerable GetResults(Type type, ParameterBuilder paramaters)
{
var keyValuePairs = paramaters.Build();
return(client.Execute(type, keyValuePairs));
}
public object ProcessMethodCall <T>(MethodCallExpression methodCall, ParameterBuilder builder, Func <ParameterBuilder, IEnumerable <T> > resultLoader, Func <Type, ParameterBuilder, IEnumerable> intermediateResultLoader)
{
if (methodCall == null)
{
return(null);
}
var method = methodCall.Method.Name;
switch (method)
{
case "First":
case "FirstOrDefault":
builder.TakeParameter = "1";
return(methodCall.Arguments.Count >= 2
? GetMethodResult(methodCall, builder, resultLoader, intermediateResultLoader)
: GetResult(methodCall, builder, resultLoader, intermediateResultLoader));
case "Single":
case "SingleOrDefault":
builder.TakeParameter = "2";
return(methodCall.Arguments.Count >= 2
? GetMethodResult(methodCall, builder, resultLoader, intermediateResultLoader)
: GetResult(methodCall, builder, resultLoader, intermediateResultLoader));
case "Last":
case "LastOrDefault":
return(methodCall.Arguments.Count >= 2
? GetMethodResult(methodCall, builder, resultLoader, intermediateResultLoader)
: GetResult(methodCall, builder, resultLoader, intermediateResultLoader));
case "Count":
case "LongCount":
builder.IncludeCount = true;
return(methodCall.Arguments.Count >= 2
? GetMethodResult(methodCall, builder, resultLoader, intermediateResultLoader)
: GetResult(methodCall, builder, resultLoader, intermediateResultLoader));
case "Where":
{
var result = ProcessMethodCall(methodCall.Arguments[0] as MethodCallExpression, builder, resultLoader, intermediateResultLoader);
if (result != null)
{
return(InvokeEager(methodCall, result));
}
var newFilter = _writer.Write(methodCall.Arguments[1]);
builder.FilterParameter = string.IsNullOrWhiteSpace(builder.FilterParameter)
? newFilter
: string.Format("({0}) and ({1})", builder.FilterParameter, newFilter);
}
break;
case "Select":
{
var result = ProcessMethodCall(methodCall.Arguments[0] as MethodCallExpression, builder, resultLoader, intermediateResultLoader);
if (result != null)
{
return(InvokeEager(methodCall, result));
}
if (!string.IsNullOrWhiteSpace(builder.SelectParameter))
{
return(ExecuteMethod(methodCall, builder, resultLoader, intermediateResultLoader));
}
var unaryExpression = methodCall.Arguments[1] as UnaryExpression;
if (unaryExpression != null)
{
var lambdaExpression = unaryExpression.Operand as LambdaExpression;
if (lambdaExpression != null)
{
return(ResolveProjection(builder, lambdaExpression));
}
}
}
break;
case "OrderBy":
case "ThenBy":
{
var result = ProcessMethodCall(methodCall.Arguments[0] as MethodCallExpression, builder, resultLoader, intermediateResultLoader);
if (result != null)
{
return(InvokeEager(methodCall, result));
}
var item = _writer.Write(methodCall.Arguments[1]);
builder.OrderByParameter.Add(item);
}
break;
case "OrderByDescending":
case "ThenByDescending":
{
var result = ProcessMethodCall(methodCall.Arguments[0] as MethodCallExpression, builder, resultLoader, intermediateResultLoader);
if (result != null)
{
return(InvokeEager(methodCall, result));
}
var visit = _writer.Write(methodCall.Arguments[1]);
builder.OrderByParameter.Add(visit + " desc");
}
break;
case "Take":
{
var result = ProcessMethodCall(methodCall.Arguments[0] as MethodCallExpression, builder, resultLoader, intermediateResultLoader);
if (result != null)
{
return(InvokeEager(methodCall, result));
}
builder.TakeParameter = _writer.Write(methodCall.Arguments[1]);
}
break;
case "Skip":
{
var result = ProcessMethodCall(methodCall.Arguments[0] as MethodCallExpression, builder, resultLoader, intermediateResultLoader);
if (result != null)
{
return(InvokeEager(methodCall, result));
}
builder.SkipParameter = _writer.Write(methodCall.Arguments[1]);
}
break;
case "Expand":
{
var result = ProcessMethodCall(methodCall.Arguments[0] as MethodCallExpression, builder, resultLoader, intermediateResultLoader);
if (result != null)
{
return(InvokeEager(methodCall, result));
}
var expression = methodCall.Arguments[1];
var objectMember = Expression.Convert(expression, typeof(object));
var getterLambda = Expression.Lambda <Func <object> >(objectMember).Compile();
builder.ExpandParameter = getterLambda().ToString();
}
break;
default:
return(ExecuteMethod(methodCall, builder, resultLoader, intermediateResultLoader));
}
return(null);
}
