public override T Using <T>(DirectoryContentHash cwd, Func <IFileSystemContext, T> action)
{
if (Root == null)
{
throw new InvalidOperationException("Unable to retrieve the root directory.");
}
DirectoryType rootDirectoryType;
if (!EntityDirectoryTypes.TryGetValue(Root.LogicalName, out rootDirectoryType))
{
throw new InvalidOperationException("Unable to retrieve the root directory.");
}
DirectoryType currentDirectoryType;
if (!EntityDirectoryTypes.TryGetValue(cwd.LogicalName, out currentDirectoryType))
{
throw new InvalidOperationException("Unable to retrieve the target directory");
}
var current = new EntityDirectory(this, cwd.ToEntityReference(), currentDirectoryType);
if (!current.Exists)
{
throw new InvalidOperationException("Unable to retrieve the target directory");
}
return(action(new EntityFileSystemContext(this, Root, rootDirectoryType, current)));
}
private IDirectory GetDirectory(ContentMap contentMap, DirectoryContentHash hash)
{
var entityReference = hash.ToEntityReference();
WebPageNode node;
if (contentMap.TryGetValue(entityReference, out node))
{
return(new WebPageNodeDirectory(this, contentMap, node));
}
DirectoryType entityDirectoryType;
if (EntityDirectoryTypes.TryGetValue(entityReference.LogicalName, out entityDirectoryType))
{
return(new EntityDirectory(this, entityReference, entityDirectoryType));
}
return(null);
}