public ExecuteCommandSet(IBasicActivateItems activator,
[DemandsInitialization("A single object on which you want to change a given property")]
IMapsDirectlyToDatabaseTable setOn,
[DemandsInitialization("Name of a property you want to change e.g. Description")]
string property,
[DemandsInitialization("New value to assign, this will be parsed into a valid Type if property is not a string")]
string value) : base(activator)
{
_setOn = setOn;
_property = _setOn.GetType().GetProperty(property);
if (_property == null)
{
SetImpossible($"Unknown Property '{property}'");
}
else
{
var picker = new CommandLineObjectPicker(new string[] { value ?? "NULL" }, activator.RepositoryLocator);
if (!picker.HasArgumentOfType(0, _property.PropertyType))
{
SetImpossible($"Provided value could not be converted to '{_property.PropertyType}'");
}
else
{
NewValue = picker[0].GetValueForParameterOfType(_property.PropertyType);
}
}
}
public ExecuteCommandSetArgument(IBasicActivateItems activator, CommandLineObjectPicker picker) : base(activator)
{
if (picker.Arguments.Count != 3)
{
SetImpossible($"Wrong number of parameters supplied to command, expected 3 but got {picker.Arguments.Count}");
return;
}
if (!picker.HasArgumentOfType(0, typeof(IMapsDirectlyToDatabaseTable)))
{
SetImpossible("First parameter must be an IArgumentHost DatabaseEntity");
return;
}
_host = picker[0].GetValueForParameterOfType(typeof(IMapsDirectlyToDatabaseTable)) as IArgumentHost;
if (_host == null)
{
SetImpossible("First parameter must be an IArgumentHost");
return;
}
var args = _host.GetAllArguments();
_arg = args.FirstOrDefault(a => a.Name.Equals(picker[1].RawValue));
if (_arg == null)
{
SetImpossible($"Could not find argument called '{picker[1].RawValue}' on '{_host}'. Arguments found were {string.Join(",",args.Select(a=>a.Name))}");
return;
}
Type argType;
try
{
argType = _arg.GetConcreteSystemType();
}
catch (Exception e)
{
SetImpossible("Failed to get system Type of argument:" + e);
return;
}
if (argType == null)
{
SetImpossible($"Argument '{_arg.Name}' has no listed Type");
return;
}
if (!picker[2].HasValueOfType(argType))
{
SetImpossible($"Provided value '{picker[2].RawValue}' does not match expected Type '{argType.Name}' of argument '{_arg.Name}'");
return;
}
_value = picker[2].GetValueForParameterOfType(argType);
}
public void Test_PickerForWhitespace(string val)
{
var picker = new CommandLineObjectPicker(new [] { val }, GetActivator());
Assert.AreEqual(1, picker.Length);
Assert.IsNull(picker[0].Database);
Assert.IsNull(picker[0].DatabaseEntities);
Assert.IsFalse(picker[0].ExplicitNull);
Assert.AreEqual(val, picker[0].RawValue);
Assert.IsNull(picker[0].Type);
Assert.AreEqual(val, picker[0].GetValueForParameterOfType(typeof(string)));
Assert.IsTrue(picker.HasArgumentOfType(0, typeof(string)));
}
public ExecuteCommandSet(IBasicActivateItems activator,
[DemandsInitialization("A single object on which you want to change a given property")]
IMapsDirectlyToDatabaseTable setOn,
[DemandsInitialization("Name of a property you want to change e.g. Description")]
string property,
[DemandsInitialization("New value to assign, this will be parsed into a valid Type if property is not a string")]
string value) : base(activator)
{
_setOn = setOn;
_property = _setOn.GetType().GetProperty(property);
if (_property == null)
{
SetImpossible($"Unknown Property '{property}'");
//suggest similar sounding properties
var suggestions =
_setOn.GetType().GetProperties().Where(c => CultureInfo.CurrentCulture.CompareInfo.IndexOf(c.Name, property, CompareOptions.IgnoreCase) >= 0).ToArray();
if (suggestions.Any())
{
StringBuilder msg = new StringBuilder($"Unknown Property '{property}'");
msg.AppendLine();
msg.AppendLine("Did you mean:");
foreach (var s in suggestions)
{
msg.AppendLine(s.Name);
}
activator.Show(msg.ToString());
}
}
else
{
var picker = new CommandLineObjectPicker(new string[] { value ?? "NULL" }, activator);
if (!picker.HasArgumentOfType(0, _property.PropertyType))
{
SetImpossible($"Provided value could not be converted to '{_property.PropertyType}'");
}
else
{
NewValue = picker[0].GetValueForParameterOfType(_property.PropertyType);
}
}
}
public ExecuteCommandNewObject(IBasicActivateItems activator, CommandLineObjectPicker picker) : base(activator)
{
if (!picker.HasArgumentOfType(0, typeof(Type)))
{
SetImpossible("First parameter must be a Type of DatabaseEntity");
}
else
{
_type = picker[0].Type;
if (!typeof(DatabaseEntity).IsAssignableFrom(_type))
{
SetImpossible("Type must be derived from DatabaseEntity");
}
}
_picker = picker;
}
public void TwoCataloguesWithSameName_NoSession()
{
SetupMEF();
var cata1 = new Catalogue(Repository, "Hey");
// When there is only one object we can pick it by name
var picker = new CommandLineObjectPicker(new string[] { "Catalogue:Hey" }, GetActivator());
Assert.IsTrue(picker.HasArgumentOfType(0, typeof(Catalogue)));
Assert.AreEqual(cata1, picker.Arguments.First().GetValueForParameterOfType(typeof(Catalogue)));
// But when there are 2 objects we don't know which to pick so cannot pick a Catalogue
new Catalogue(Repository, "Hey");
var picker2 = new CommandLineObjectPicker(new string[] { "Catalogue:Hey" }, GetActivator());
Assert.IsFalse(picker2.HasArgumentOfType(0, typeof(Catalogue)));
}
public ExecuteCommandSetUserSetting(IBasicActivateItems activator,
[DemandsInitialization("Name of a property you want to change e.g. AllowIdentifiableExtractions")]
string property,
[DemandsInitialization("New value to assign, this will be parsed into a valid Type if property is not a string")]
string value) : base(activator)
{
_property = typeof(UserSettings).GetProperty(property, BindingFlags.Public | BindingFlags.Static);
if (_property == null)
{
SetImpossible($"Unknown Property '{property}'");
//suggest similar sounding properties
var suggestions =
typeof(UserSettings).GetProperties(BindingFlags.Public | BindingFlags.Static).Where(c => CultureInfo.CurrentCulture.CompareInfo.IndexOf(c.Name, property, CompareOptions.IgnoreCase) >= 0).ToArray();
if (suggestions.Any())
{
StringBuilder msg = new StringBuilder($"Unknown Property '{property}'");
msg.AppendLine();
msg.AppendLine("Did you mean:");
foreach (var s in suggestions)
{
msg.AppendLine(s.Name);
}
activator.Show(msg.ToString());
}
}
else
{
var picker = new CommandLineObjectPicker(new string[] { value ?? "NULL" }, activator);
if (!picker.HasArgumentOfType(0, _property.PropertyType))
{
SetImpossible($"Provided value could not be converted to '{_property.PropertyType}'");
}
else
{
NewValue = picker[0].GetValueForParameterOfType(_property.PropertyType);
}
}
}
public void TwoCataloguesWithSameName_WithSession()
{
SetupMEF();
using (NewObjectPool.StartSession())
{
var cata1 = new Catalogue(Repository, "Hey");
// When there is only one object we can pick it by name
var picker = new CommandLineObjectPicker(new string[] { "Catalogue:Hey" }, GetActivator());
Assert.IsTrue(picker.HasArgumentOfType(0, typeof(Catalogue)));
Assert.AreEqual(cata1, picker.Arguments.First().GetValueForParameterOfType(typeof(Catalogue)));
// There are now 2 objects with the same name but because we are in a session we can pick the latest
var cata2 = new Catalogue(Repository, "Hey");
var picker2 = new CommandLineObjectPicker(new string[] { "Catalogue:Hey" }, GetActivator());
Assert.IsTrue(picker2.HasArgumentOfType(0, typeof(Catalogue)));
Assert.AreEqual(cata2, picker2.Arguments.First().GetValueForParameterOfType(typeof(Catalogue)));
}
}
private void ExecuteCommand(ConstructorInfo constructorInfo, CommandLineObjectPicker picker)
{
List <object> parameterValues = new List <object>();
bool complainAboutExtraParameters = true;
int idx = 0;
//for each parameter on the constructor we want to invoke
foreach (var parameterInfo in constructorInfo.GetParameters())
{
var required = new RequiredArgument(parameterInfo);
var argDelegate = GetDelegate(required);
//if it is an easy one to automatically fill e.g. IBasicActivateItems
if (argDelegate != null && argDelegate.IsAuto)
{
parameterValues.Add(argDelegate.Run(required));
}
else
//if the constructor argument is a picker, use the one passed in
if (parameterInfo.ParameterType == typeof(CommandLineObjectPicker))
{
if (picker == null)
{
throw new ArgumentException($"Type {constructorInfo.DeclaringType} contained a constructor which took an {parameterInfo.ParameterType} but no picker was passed");
}
parameterValues.Add(picker);
//the parameters are expected to be consumed by the target constructors so it's not really a problem if there are extra
complainAboutExtraParameters = false;
continue;
}
else
//if we have argument values specified
if (picker != null)
{
//and the specified value matches the expected parameter type
if (picker.HasArgumentOfType(idx, parameterInfo.ParameterType))
{
//consume a value
parameterValues.Add(picker[idx].GetValueForParameterOfType(parameterInfo.ParameterType));
idx++;
continue;
}
throw new Exception($"Expected parameter at index {idx} to be a {parameterInfo.ParameterType} (for parameter '{parameterInfo.Name}') but it was {(idx >= picker.Length ? "Missing":picker[idx].RawValue)}");
}
else
{
parameterValues.Add(GetValueForParameterOfType(parameterInfo));
}
}
if (picker != null && idx < picker.Length && complainAboutExtraParameters)
{
throw new Exception("Unrecognised extra parameter " + picker[idx].RawValue);
}
var instance = (IAtomicCommand)constructorInfo.Invoke(parameterValues.ToArray());
if (instance.IsImpossible)
{
CommandImpossible?.Invoke(this, new CommandEventArgs(instance));
return;
}
instance.Execute();
CommandCompleted?.Invoke(this, new CommandEventArgs(instance));
}
