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namespace System.Web.Mvc {
using System;
public abstract class BuildManagerViewEngine : VirtualPathProviderViewEngine {
private IBuildManager _buildManager;
private IViewPageActivator _viewPageActivator;
private IResolver<IViewPageActivator> _activatorResolver;
protected BuildManagerViewEngine()
: this(null, null, null) {
}
protected BuildManagerViewEngine(IViewPageActivator viewPageActivator)
: this(viewPageActivator, null, null) {
}
internal BuildManagerViewEngine(IViewPageActivator viewPageActivator, IResolver<IViewPageActivator> activatorResolver, IDependencyResolver dependencyResolver) {
if (viewPageActivator != null) {
_viewPageActivator = viewPageActivator;
}
else {
_activatorResolver = activatorResolver ?? new SingleServiceResolver<IViewPageActivator>(
() => null,
new DefaultViewPageActivator(dependencyResolver),
"BuildManagerViewEngine constructor"
);
}
}
internal IBuildManager BuildManager {
get {
if (_buildManager == null)
_buildManager = new BuildManagerWrapper();
return _buildManager;
}
set {
_buildManager = value;
}
}
protected override bool FileExists(ControllerContext controllerContext, string virtualPath) {
return BuildManager.FileExists(virtualPath);
}
protected IViewPageActivator ViewPageActivator {
get {
if (_viewPageActivator != null) {
return _viewPageActivator;
}
_viewPageActivator = _activatorResolver.Current;
return _viewPageActivator;
}
}
internal class DefaultViewPageActivator : IViewPageActivator {
Func<IDependencyResolver> _resolverThunk;
public DefaultViewPageActivator()
: this(null) {
}
public DefaultViewPageActivator(IDependencyResolver resolver) {
if (resolver == null) {
_resolverThunk = () => DependencyResolver.Current;
}
else {
_resolverThunk = () => resolver;
}
}
public object Create(ControllerContext controllerContext, Type type) {
return _resolverThunk().GetService(type) ?? Activator.CreateInstance(type);
}
}
}
}
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