/// <summary>
/// Constructs the window resource service.
/// </summary>
/// <param name="physicalBasePath">The physical base path of th application.</param>
/// <param name="resourceSubFolder">The subfolder in which the application paths live.</param>
/// <param name="assemblyRootPaths">The root paths.</param>
/// <param name="pathInterpreters">The <see cref="IEnumerable{T}"/>s.</param>
/// <param name="cachingService">The <see cref="ICachingService"/>.</param>
public WindowsApplicationResourceService(string physicalBasePath, string resourceSubFolder, IEnumerable<string> assemblyRootPaths, IEnumerable<ResourcePathInterpreter> pathInterpreters, ICachingService cachingService)
{
// validate arguments
if (string.IsNullOrEmpty(physicalBasePath))
throw new ArgumentNullException("physicalBasePath");
if (assemblyRootPaths == null)
throw new ArgumentNullException("assemblyRootPaths");
if (pathInterpreters == null)
throw new ArgumentNullException("pathInterpreters");
if (cachingService == null)
throw new ArgumentNullException("cachingService");
// get the directory info
var physicalBaseDirectory = new DirectoryInfo(physicalBasePath);
if (!physicalBaseDirectory.Exists)
throw new InvalidOperationException(string.Format("Physical path '{0}' does not exist", physicalBasePath));
// set the values
this.physicalBasePath = physicalBaseDirectory.FullName;
this.pathInterpreters = pathInterpreters;
foreach (var rootPath in assemblyRootPaths.Select(rootPath => rootPath.Trim(new[] {Path.DirectorySeparatorChar, Path.AltDirectorySeparatorChar})))
{
// make sure the path is only added once
if (rootPaths.Contains(rootPath))
throw new InvalidOperationException(string.Format("The root path '{0}' is already added", rootPath));
// make sure the directoy exists
var rootPathDirectory = Path.Combine(physicalBasePath, Path.Combine(rootPath, resourceSubFolder));
if (!Directory.Exists(rootPathDirectory))
throw new InvalidOperationException(string.Format("Resource path '{0}' does not exist", rootPathDirectory));
// add the root path
rootPaths.Add(rootPathDirectory);
rootPathsReverse.Insert(0, rootPathDirectory);
}
// add file system watchers
foreach (var watcher in rootPaths.Select(rootPath => new FileSystemWatcher(rootPath)
{
EnableRaisingEvents = true,
IncludeSubdirectories = true
}))
{
watcher.Changed += (sender, e) =>
{
// clear the cache when this object is not yet disposed
if (IsNotDisposed)
cachingService.ClearAll();
};
watchers.Add(watcher);
}
}
