/// <summary>
/// Runs and compiles a linq-query
/// </summary>
/// <param name="configuration">the configuration that is used for compiling the provided linq-query</param>
/// <param name="target">the target object on which to run the query</param>
/// <param name="nameOfTarget">the name of the parameter holding the target-object</param>
/// <param name="expression">the expression to run on the target object</param>
/// <param name="arguments">arguments for the query. each property of the given object will lead to a parameter of the resulting method</param>
/// <returns>the result of the compiled and executed method</returns>
public static object RunLinqQuery(string configuration, object target, string nameOfTarget, string expression, IDictionary <string, object> arguments)
{
var cfg = configurations.GetOrAdd(configuration, new NativeConfiguration());
if (cfg.AutoReferences)
{
ApplyAutoRef(cfg, arguments.Values, false);
ApplyAutoRef(cfg, new[] { target }, true);
}
string roslynHash = GetFlatString(expression);
var roslynScript = roslynScripts.GetOrAdd(roslynHash, new Lazy <ScriptRunner <object> >(() =>
{
ScriptOptions scriptoptions;
lock (cfg)
{
scriptoptions = ScriptOptions.Default
.WithImports(cfg.Usings.Union(new[] { "System", "System.Linq", "System.Collections.Generic" }))
.WithReferences(
new[]
{
typeof(FileStyleUriParser).Assembly, typeof(Action).Assembly,
NamedAssemblyResolve.LoadAssembly("System.Linq"),
NamedAssemblyResolve.LoadAssembly("Microsoft.CSharp")
}.Union(from t in cfg.References select NamedAssemblyResolve.LoadAssembly(t)).ToArray())
.WithOptimizationLevel(OptimizationLevel.Release);
}
//var retVal = CSharpScript.Create(expression, scriptoptions, typeof(NativeScriptObjectHelper), Loader);
var retVal = CSharpScript.Create(expression, scriptoptions, typeof(NativeScriptObjectHelper));
retVal.Compile();
return(retVal.CreateDelegate());
}));
var dic = new ExpandoObject();
var idic = dic as IDictionary <string, object>;
idic[nameOfTarget] = target;
foreach (var argument in arguments)
{
idic[argument.Key] = argument.Value;
}
return(AsyncHelpers.RunSync(() => roslynScript.Value(new NativeScriptObjectHelper {
Global = idic
})));
}
/// <summary>
/// Creates a Command Executor object that is capable for executing the requested command
/// </summary>
/// <param name="command">the Query to execute on the offline tables</param>
/// <returns>a procy object that is capable for executing the requested query</returns>
public static Script <object> CreateCommand(string command)
{
var roslynHash = GetHashSha256(command);
var roslynScript = roslynScripts.GetOrAdd(roslynHash, new Lazy <Script <object> >(() =>
{
var scriptoptions = ScriptOptions.Default.WithImports(dynamicUsings.Union(new[] { "System", "System.Linq", "System.Collections.Generic", "ITVComponents", "ITVComponents.DataAccess", "ITVComponents.DataAccess.Extensions", "ITVComponents.DataAccess.Linq" })).WithReferences(new[] { typeof(FileStyleUriParser).Assembly, typeof(Action).Assembly }.Union(from t in Extensions.Union(dynamicExtensions).Distinct() select NamedAssemblyResolve.LoadAssembly(t)));
return(CSharpScript.Create(command, scriptoptions, typeof(NativeScriptObjectHelper)));
}));
return(roslynScript.Value);
}
