public void RegisterCommand()
{
Commands.Clear();
Dictionary <string, string> commandAliases = new Dictionary <string, string>();
List <Command> commands = ClassLoader.Load <Command>().ToList();
commands = commands.OrderBy(t => t.Name).ToList();
foreach (Command cl in commands)
{
if (!cl.CommandSystemID.Equals("") && !cl.CommandSystemID.Equals(CommandID))
{
return;
}
string name = cl.Name;
if (name == null)
{
Logger.WriteLine("Command " + cl.GetType().Name + " has no name!", LogLevel.WARNING);
continue;
}
if (Commands.ContainsKey(name.ToLower()) && cl.GetType().GetCustomAttribute(typeof(OverrideCommandAttribute), false) == null)
{
Logger.WriteLine(name + " already exists, please remove or rename!", LogLevel.WARNING);
continue;
}
if (cl.Aliases == null || cl.Aliases.Count == 0)
{
Logger.WriteLine("Command " + name + " has no aliases! Using " + name.ToLower() + " as Alias");
cl.Aliases.Add(name.ToLower());
}
foreach (string alias in cl.Aliases.ToArray())
{
if (commandAliases.ContainsKey(alias))
{
if (name.Equals(commandAliases[alias]))
{
Logger.WriteLine("The Command " + name + " has duplicate alias entries.", LogLevel.WARNING);
cl.Aliases.RemoveAll(t => t == alias);
cl.Aliases.Add(alias);
}
else
{
Logger.WriteLine("The alias " + alias + " for Command " + name + " is already in use by Command " + commandAliases[alias] + ", removing!", LogLevel.WARNING);
cl.Aliases.RemoveAll(t => t == alias);
}
continue;
}
commandAliases.Add(alias, name);
}
cl.SetParentSystem(this);
Commands.Add(name.ToLower(), cl);
}
}
public Type Parse(string simplifyQualifiedName)
{
//var namespaceAliasName = simplifyQualifiedName.LeftOf(".");
var array = simplifyQualifiedName.Split(',');
var fullName = array[0].Split('.');
var qualifiedName = namespaceTable[fullName[0]] + "." + fullName[1] + "," + assemblyNameTable[array[1]];
return(ClassLoader.Load(qualifiedName));
}
/// <summary>
/// 批量注册AppDomain下的程序集内符合特定条件的实体到数据表的映射关系
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="typeFilter"></param>
/// <returns></returns>
public DbConfiguration AddFromAppDomain(System.Func <Type, bool> typeFilter)
{
Assembly[] asms = null;
if (NLiteEnvironment.IsWeb)
{
var buildManagerType = ClassLoader.Load("System.Web.Compilation.BuildManager,System.Web");
Guard.NotNull(buildManagerType, "buildManagerType");
asms = (buildManagerType
.GetMethod("GetReferencedAssemblies", BindingFlags.Public | BindingFlags.Static)
.Invoke(null, null) as IEnumerable)
.Cast <Assembly>()
.ToArray();
}
else
{
asms = AppDomain.CurrentDomain.GetAssemblies();
}
foreach (var asm in asms)
{
AddFromAssembly(asm, typeFilter);
}
return(this);
}
protected override void Load()
{
Loader.ReadAllFiles();
Localisers = ClassLoader.Load <IBaseLocaliser>();
}
protected override Expression VisitMethodCall(MethodCallExpression m)
{
m = base.VisitMethodCall(m) as MethodCallExpression;
var lambda = MethodMapping.ConvertMember(m.Method);
if (lambda != null)
{
var ef = lambda.Body.Unwrap();
var parms = new Dictionary <string, ParameterMapping>(lambda.Parameters.Count);
var pn = m.Method.IsStatic ? 0 : -1;
foreach (var p in lambda.Parameters)
{
parms.Add(p.Name, new ParameterMapping(pn++, p.Type));
}
var pie = ef.Convert(wpi =>
{
if (wpi.NodeType == ExpressionType.Parameter)
{
ParameterMapping n;
if (parms.TryGetValue(((ParameterExpression)wpi).Name, out n))
{
var tmp = n.Index < 0 ? m.Object : m.Arguments[n.Index];
if (tmp.Type != n.Type)
{
return(Expression.Convert(tmp, n.Type));
}
return(tmp);
}
}
return(wpi);
});
if (m.Method.ReturnType != pie.Type)
{
pie = Expression.Convert(pie, m.Method.ReturnType);
}
return(Visit(pie));
}
var methodName = m.Method.Name;
var declaringType = m.Method.DeclaringType;
if (declaringType == typeof(System.Convert))
{
Expression operand = null;
Type toType = null;
if (m.Method.Name.StartsWith("To"))
{
toType = ClassLoader.Load("System." + m.Method.Name.Replace("To", ""));
operand = m.Arguments[0];
}
if (operand != null && toType != null && toType != Types.Object)
{
return(Expression.Call(MethodRepository.GetConvertMethod(operand.Type, toType), operand));
}
}
if (typeof(TypeConverter).IsAssignableFrom(declaringType))
{
Expression operand = null;
Type toType = null;
if (methodName.StartsWith("ConvertFrom"))
{
var c = m.Object as ConstantExpression;
Type converterType = null;
if (c != null)
{
converterType = (m.Object as ConstantExpression).Value.GetType();
}
else
{
var ma = m.Object as MemberExpression;
if (ma != null)
{
c = ma.Expression as ConstantExpression;
if (c == null)
{
throw new NotSupportedException(string.Format("The method '{0}' is not supported", m.Method.Name));
}
converterType = ma.Member.GetGetter()(c.Value).GetType();
}
}
toType = ClassLoader.Load("System." + converterType.Name.Replace("Converter", ""));
if (toType == null)
{
throw new NotSupportedException(string.Format("The method '{0}' is not supported", m.Method.Name));
}
if (methodName == "ConvertFrom" && m.Arguments.Count == 1)
{
operand = m.Arguments[0];
}
else if (methodName == "ConvertFromString" && m.Arguments.Count == 1)
{
operand = m.Arguments[0];
}
else if (methodName == "ConvertFromInvariantString" && m.Arguments.Count == 1)
{
operand = m.Arguments[0];
}
}
else if (methodName == "ConvertTo" && m.Arguments.Count == 2)
{
operand = m.Arguments[0];
toType = (m.Arguments[1] as ConstantExpression).Value as Type;
}
else if (methodName == "ConvertToInvariantString" && m.Arguments.Count == 1)
{
operand = m.Arguments[0];
toType = Types.String;
}
else if (methodName == "ConvertToString" && m.Arguments.Count == 1)
{
operand = m.Arguments[0];
toType = Types.String;
}
if (operand != null && toType != null && toType != Types.Object)
{
return(Expression.Call(MethodRepository.GetConvertMethod(operand.Type, toType), operand));
}
throw new NotSupportedException(string.Format("The method '{0}' is not supported", methodName));
}
if (methodName == "Parse" &&
m.Method.IsStatic &&
(declaringType.IsValueType || declaringType.IsNullable()) &&
m.Arguments.Count == 1 &&
m.Method.ReturnType == m.Type)
{
Expression operand = m.Arguments[0];
Type toType = declaringType.IsNullable() ? Nullable.GetUnderlyingType(declaringType) : declaringType;
return(Expression.Call(MethodRepository.GetConvertMethod(operand.Type, toType), operand));
}
if (declaringType == Types.String)
{
if (methodName == "Concat")
{
return(BindConcat(m.Arguments.ToArray()));
}
if (methodName == "Join")
{
return(BindJoin(m));
}
}
if (methodName == "ContainsValue" && IsSameOrParent(typeof(IDictionary <,>), declaringType))
{
var args = GetGenericArguments(declaringType, typeof(IDictionary <,>));
var minf = EnumerableMethods
.First(s => s.Name == "Contains" && s.GetParameters().Length == 2)
.MakeGenericMethod(args[1]);
return(Expression.Call(
minf,
Expression.PropertyOrField(m.Object, "Values"),
m.Arguments[0]));
}
if (methodName == "ContainsKey" && IsSameOrParent(typeof(IDictionary <,>), declaringType))
{
var args = GetGenericArguments(declaringType, typeof(IDictionary <,>));
var minf = EnumerableMethods
.First(s => s.Name == "Contains" && s.GetParameters().Length == 2)
.MakeGenericMethod(args[1]);
return(Expression.Call(
minf,
Expression.PropertyOrField(m.Object, "Keys"),
m.Arguments[0]));
}
if (declaringType.FullName == DLinq.StrSqlMethhodsType && declaringType.Assembly.GetName().Name == DLinq.StrAssemblyName)
{
DLinq.Init(declaringType.Assembly);
return(Visit(m));
}
//if (methodName == "Like" && declaringType == typeof(SqlFunctions) && m.Arguments.Count == 5)
//{
// return BindLike(
// m.Arguments[0]
// , m.Arguments[1]
// , (bool)(m.Arguments[2] as ConstantExpression).Value
// , (bool)(m.Arguments[3] as ConstantExpression).Value
// , (bool)(m.Arguments[4] as ConstantExpression).Value);
//}
if (typeof(Queryable).IsAssignableFrom(declaringType) || typeof(Enumerable).IsAssignableFrom(declaringType))
{
var elementType = NLite.Data.Linq.Internal.ReflectionHelper.GetElementType(m.Arguments[0].Type);
switch (methodName)
{
case "Contains":
EntityMapping mapping;
if (DbContext.dbConfiguration.mappings.TryGetValue(elementType.TypeHandle.Value, out mapping))
{
// Expression left =
}
break;
//case "Aggregate":
// {
// var type = NLite.Reflection.TypeHelper.GetElementType(m.Arguments[0].Type);
// if (type.IsNullable())
// type = Nullable.GetUnderlyingType(type);
// if (type.IsClass && type != Types.String)
// throw new NotSupportedException("Not support 'Aggregate' function for complex type.");
// break;
// }
//case "ElementAt":
// var index = m.Arguments[1];
// var elementType = NLite.Reflection.TypeHelper.GetElementType(m.Arguments[0].Type);
// var c = index as ConstantExpression;
// if (c != null)
// {
// if((int)c.Value == 0)
// return Expression.Call(typeof(Enumerable), "Take", new Type[] { elementType }, m.Arguments[0], Expression.Constant(1, Types.Int32));
// index = Expression.Constant((int)c.Value + 1, Types.Int32);
// }
// else
// index = Expression.Add(index, Expression.Constant(1, Types.Int32));
// var s = Expression.Call(typeof(Enumerable), "Skip", new Type[] { elementType },m.Arguments[0], index);
// return Expression.Call(typeof(Enumerable), "Take", new Type[] { elementType },s, Expression.Constant(1,Types.Int32));
}
}
if (IsSameOrParent(typeof(IEnumerable <>), declaringType) &&
!declaringType.IsArray &&
m.Object != null &&
m.Object.NodeType == ExpressionType.Constant &&
!typeof(IQueryable).IsAssignableFrom(declaringType))
{
switch (methodName)
{
case "Contains":
var elementType = NLite.Data.Linq.Internal.ReflectionHelper.GetElementType(declaringType);
if (!DbContext.dbConfiguration.HasClass(elementType) && elementType != Types.Char)
{
var lst = (m.Object as ConstantExpression).Value as IEnumerable;
if (lst != null)
{
var items = lst.Cast <object>().ToArray();
var arry = Array.CreateInstance(elementType, items.Length);
for (int i = 0; i < items.Length; i++)
{
arry.SetValue(items[i], i);
}
Expression array = Expression.Constant(arry);
var containsMethod = EnumerableMethods
.First(s => s.Name == "Contains" && s.GetParameters().Length == 2)
.MakeGenericMethod(elementType);
m = Expression.Call(containsMethod, array, m.Arguments[0]);
}
}
break;
}
}
return(m);
}
