internal object CreateInstanceCore(object[] ctorArgs)
{
Contracts.Assert(Utils.Size(ctorArgs) == CtorTypes.Length + ((RequireEnvironment) ? 1 : 0));
if (InstanceGetter != null)
{
Contracts.Assert(Utils.Size(ctorArgs) == 0);
return(InstanceGetter.Invoke(null, null));
}
if (Constructor != null)
{
return(Constructor.Invoke(ctorArgs));
}
if (CreateMethod != null)
{
return(CreateMethod.Invoke(null, ctorArgs));
}
throw Contracts.Except("Can't instantiate class '{0}'", Type.Name);
}
internal ComponentInfo(Type interfaceType, string kind, Type argumentType, TlcModule.ComponentAttribute attribute)
{
Contracts.AssertValue(interfaceType);
Contracts.AssertNonEmpty(kind);
Contracts.AssertValue(argumentType);
Contracts.AssertValue(attribute);
Name = attribute.Name;
Description = attribute.Desc;
if (string.IsNullOrWhiteSpace(attribute.FriendlyName))
{
FriendlyName = Name;
}
else
{
FriendlyName = attribute.FriendlyName;
}
Kind = kind;
if (!IsValidName(Kind))
{
throw Contracts.Except("Invalid component kind: '{0}'", Kind);
}
Aliases = attribute.Aliases;
if (!IsValidName(Name))
{
throw Contracts.Except("Component name '{0}' is not valid.", Name);
}
if (Aliases != null && Aliases.Any(x => !IsValidName(x)))
{
throw Contracts.Except("Component '{0}' has an invalid alias '{1}'", Name, Aliases.First(x => !IsValidName(x)));
}
if (!typeof(IComponentFactory).IsAssignableFrom(argumentType))
{
throw Contracts.Except("Component '{0}' must inherit from IComponentFactory", argumentType);
}
ArgumentType = argumentType;
InterfaceType = interfaceType;
}
private void AddClass(LoadableClassInfo info, string[] loadNames, bool throwOnError)
{
_classes.Add(info);
bool isEntryPoint = false;
foreach (var sigType in info.SignatureTypes)
{
_signatures[sigType] = true;
foreach (var name in loadNames)
{
string nameCi = name.ToLowerInvariant();
var key = new LoadableClassInfo.Key(nameCi, sigType);
if (_classesByKey.TryGetValue(key, out var infoCur))
{
if (throwOnError)
{
throw Contracts.Except($"ComponentCatalog cannot map name '{name}' and SignatureType '{sigType}' to {info.Type.Name}, already mapped to {infoCur.Type.Name}.");
}
}
else
{
_classesByKey.Add(key, info);
}
}
if (sigType == typeof(SignatureEntryPointModule))
{
isEntryPoint = true;
}
}
if (isEntryPoint)
{
ScanForEntryPoints(info);
}
}
internal EntryPointInfo(MethodInfo method,
TlcModule.EntryPointAttribute attribute, ObsoleteAttribute obsoleteAttribute)
{
Contracts.AssertValue(method);
Contracts.AssertValue(attribute);
Name = attribute.Name ?? string.Join(".", method.DeclaringType.Name, method.Name);
Description = attribute.Desc;
Method = method;
ShortName = attribute.ShortName;
FriendlyName = attribute.UserName;
XmlInclude = attribute.XmlInclude;
ObsoleteAttribute = obsoleteAttribute;
// There are supposed to be 2 parameters, env and input for non-macro nodes.
// Macro nodes have a 3rd parameter, the entry point node.
var parameters = method.GetParameters();
if (parameters.Length != 2 && parameters.Length != 3)
{
throw Contracts.Except("Method '{0}' has {1} parameters, but must have 2 or 3", method.Name, parameters.Length);
}
if (parameters[0].ParameterType != typeof(IHostEnvironment))
{
throw Contracts.Except("Method '{0}', 1st parameter is {1}, but must be IHostEnvironment", method.Name, parameters[0].ParameterType);
}
InputType = parameters[1].ParameterType;
var outputType = method.ReturnType;
if (!outputType.IsClass)
{
throw Contracts.Except("Method '{0}' returns {1}, but must return a class", method.Name, outputType);
}
OutputType = outputType;
InputKinds = FindEntryPointKinds(InputType);
OutputKinds = FindEntryPointKinds(OutputType);
}
public IEnumerable <TDst> RunPipe(bool reuseRowObject)
{
var curCounter = _counter;
using (var cursor = _cursorablePipe.GetCursor())
{
TDst row = null;
while (cursor.MoveNext())
{
if (!reuseRowObject || row == null)
{
row = new TDst();
}
cursor.FillValues(row);
yield return(row);
if (curCounter != _counter)
{
throw Contracts.Except("An attempt was made to keep iterating after the pipe has been reset.");
}
}
}
}
protected LoadableClassAttributeBase(string summary, Type instType, Type loaderType, Type argType, Type[] sigTypes, string userName, params string[] loadNames)
{
Contracts.CheckValueOrNull(summary);
Contracts.CheckValue(instType, nameof(instType));
Contracts.CheckValue(loaderType, nameof(loaderType));
Contracts.CheckNonEmpty(sigTypes, nameof(sigTypes));
if (Utils.Size(loadNames) == 0)
{
loadNames = new string[] { userName }
}
;
if (loadNames.Any(s => string.IsNullOrWhiteSpace(s)))
{
throw Contracts.ExceptEmpty(nameof(loadNames), "LoadableClass loadName parameter can't be empty");
}
var sigType = sigTypes[0];
Contracts.CheckValue(sigType, nameof(sigTypes));
Type[] types;
Contracts.CheckParam(sigType.BaseType == typeof(System.MulticastDelegate), nameof(sigTypes), "LoadableClass signature type must be a delegate type");
var meth = sigType.GetMethod("Invoke");
Contracts.CheckParam(meth != null, nameof(sigTypes), "LoadableClass signature type must be a delegate type");
Contracts.CheckParam(meth.ReturnType == typeof(void), nameof(sigTypes), "LoadableClass signature type must be a delegate type with void return");
var parms = meth.GetParameters();
int itypeBase = 0;
if (argType != null)
{
types = new Type[1 + parms.Length];
types[itypeBase++] = argType;
}
else if (parms.Length > 0)
{
types = new Type[parms.Length];
}
else
{
types = Type.EmptyTypes;
}
for (int itype = 0; itype < parms.Length; itype++)
{
var parm = parms[itype];
if ((parm.Attributes & (ParameterAttributes.Out | ParameterAttributes.Retval)) != 0)
{
throw Contracts.Except("Invalid signature parameter attributes");
}
types[itypeBase + itype] = parm.ParameterType;
}
for (int i = 1; i < sigTypes.Length; i++)
{
sigType = sigTypes[i];
Contracts.CheckValue(sigType, nameof(sigTypes));
Contracts.Check(sigType.BaseType == typeof(System.MulticastDelegate), "LoadableClass signature type must be a delegate type");
meth = sigType.GetMethod("Invoke");
Contracts.CheckParam(meth != null, nameof(sigTypes), "LoadableClass signature type must be a delegate type");
Contracts.CheckParam(meth.ReturnType == typeof(void), nameof(sigTypes), "LoadableClass signature type must be a delegate type with void return");
parms = meth.GetParameters();
Contracts.CheckParam(parms.Length + itypeBase == types.Length, nameof(sigTypes), "LoadableClass signatures must have the same number of parameters");
for (int itype = 0; itype < parms.Length; itype++)
{
var parm = parms[itype];
if ((parm.Attributes & (ParameterAttributes.Out | ParameterAttributes.Retval)) != 0)
{
throw Contracts.ExceptParam(nameof(sigTypes), "Invalid signature parameter attributes");
}
Contracts.CheckParam(types[itypeBase + itype] == parm.ParameterType, nameof(sigTypes),
"LoadableClass signatures must have the same set of parameters");
}
}
InstanceType = instType;
LoaderType = loaderType;
ArgType = argType;
SigTypes = sigTypes;
CtorTypes = types;
Summary = summary;
UserName = userName;
LoadNames = loadNames;
}
}