public void GettingComponentWithMissingDependencyFails()
{
IPicoContainer picoContainer = CreatePicoContainerWithDependsOnTouchableOnly();
try
{
picoContainer.GetComponentInstance(typeof(DependsOnTouchable));
Assert.Fail("should need a Touchable");
}
catch (UnsatisfiableDependenciesException e)
{
Assert.AreSame(
picoContainer.GetComponentAdapterOfType(typeof(DependsOnTouchable)).ComponentImplementation,
e.UnsatisfiableComponentAdapter.ComponentImplementation);
IList unsatisfiableDependencies = e.UnsatisfiableDependencies;
Assert.AreEqual(1, unsatisfiableDependencies.Count);
Assert.AreEqual(typeof(ITouchable), unsatisfiableDependencies[0]);
}
}
public IComponentAdapter GetComponentAdapterOfType(Type componentType)
{
IComponentAdapter adapterByKey = GetComponentAdapter(componentType);
if (adapterByKey != null)
{
return(adapterByKey);
}
IList found = GetComponentAdaptersOfType(componentType);
if (found.Count == 1)
{
return((IComponentAdapter)found[0]);
}
if (found.Count == 0)
{
if (parent != null)
{
return(parent.GetComponentAdapterOfType(componentType));
}
else
{
return(null);
}
}
else
{
Type[] foundClasses = new Type[found.Count];
for (int i = 0; i < foundClasses.Length; i++)
{
IComponentAdapter componentAdapter = (IComponentAdapter)found[i];
foundClasses[i] = componentAdapter.ComponentImplementation;
}
throw new AmbiguousComponentResolutionException(componentType, foundClasses);
}
}
private IComponentAdapter GetTargetAdapter(IPicoContainer container, Type expectedType,
IComponentAdapter excludeAdapter)
{
if (componentKey != null)
{
// key tells us where to look so we follow
return container.GetComponentAdapter(componentKey);
}
else if (excludeAdapter == null)
{
return container.GetComponentAdapterOfType(expectedType);
}
else
{
Object excludeKey = excludeAdapter.ComponentKey;
IComponentAdapter byKey = container.GetComponentAdapter(expectedType);
if (byKey != null)
{
if (byKey.ComponentKey.Equals(excludeKey))
{
return null;
}
return byKey;
}
IList found = container.GetComponentAdaptersOfType(expectedType);
IComponentAdapter exclude = null;
foreach (IComponentAdapter work in found)
{
if (work.ComponentKey.Equals(excludeKey))
{
exclude = work;
}
}
found.Remove(exclude);
if (found.Count == 0)
{
if (container.Parent != null)
{
return container.Parent.GetComponentAdapterOfType(expectedType);
}
else
{
return null;
}
}
else if (found.Count == 1)
{
return (IComponentAdapter) found[0];
}
else
{
Type[] foundTypes = new Type[found.Count];
for (int i = 0; i < foundTypes.Length; i++)
{
foundTypes[i] = ((IComponentAdapter) found[i]).ComponentImplementation;
}
throw new AmbiguousComponentResolutionException(expectedType, foundTypes);
}
}
}
private IComponentAdapter GetTargetAdapter(IPicoContainer container, Type expectedType,
IComponentAdapter excludeAdapter)
{
if (componentKey != null)
{
// key tells us where to look so we follow
return(container.GetComponentAdapter(componentKey));
}
else if (excludeAdapter == null)
{
return(container.GetComponentAdapterOfType(expectedType));
}
else
{
Object excludeKey = excludeAdapter.ComponentKey;
IComponentAdapter byKey = container.GetComponentAdapter(expectedType);
if (byKey != null)
{
if (byKey.ComponentKey.Equals(excludeKey))
{
return(null);
}
return(byKey);
}
IList found = container.GetComponentAdaptersOfType(expectedType);
IComponentAdapter exclude = null;
foreach (IComponentAdapter work in found)
{
if (work.ComponentKey.Equals(excludeKey))
{
exclude = work;
}
}
found.Remove(exclude);
if (found.Count == 0)
{
if (container.Parent != null)
{
return(container.Parent.GetComponentAdapterOfType(expectedType));
}
else
{
return(null);
}
}
else if (found.Count == 1)
{
return((IComponentAdapter)found[0]);
}
else
{
Type[] foundTypes = new Type[found.Count];
for (int i = 0; i < foundTypes.Length; i++)
{
foundTypes[i] = ((IComponentAdapter)found[i]).ComponentImplementation;
}
throw new AmbiguousComponentResolutionException(expectedType, foundTypes);
}
}
}
