protected override void Dispose(bool disposing)
{
FileSystemWatcher.Dispose();
DirectoryCatalog.Dispose();
base.Dispose(disposing);
}
public void Unload()
{
pluginCatalog.Dispose();
pluginCatalog = null;
WorldDocuments.Clear();
TreeEntries.Clear();
WorldDocuments = null;
}
protected virtual void Dispose(bool disposing)
{
if (!isDisposed)
{
if (disposing)
{
_catalog.Dispose();
_container.Dispose();
}
}
isDisposed = true;
}
internal static Collection <T> GetExportedPlugins <T>(string directory, string searchPattern = "*.dll")
{
Collection <T> plugins = new Collection <T>();
DirectoryCatalog catalog = new DirectoryCatalog(directory, searchPattern);
CompositionContainer container = new CompositionContainer(catalog);
try
{
foreach (var plugin in container.GetExportedValues <T>())
{
plugins.Add(plugin);
}
}
finally
{
catalog.Dispose();
container.Dispose();
}
return(plugins);
}
private IImportClient FindClient(
string pluginDirectory,
ImportConnectionInfo connectionInfo,
ImportContext context)
{
container?.Dispose();
catalog?.Dispose();
// We can add logic here to check for multiple constructions of the import client from the same app domain,
// but with different version requests. Compare the plugin directory that was passed in, against a static plugin
// directory variable -----------------NOTE - is this not already happening in the calling method?
// Note: You MUST use a specific enough filename filter for your plugins and prevent MEF from trying
// to do things like load native binaries.
this.catalog = new DirectoryCatalog(pluginDirectory, "Relativity.DataExchange.Wrapper.*.dll");
this.container = new CompositionContainer(catalog);
this.ImportClients.Clear();
container.ComposeExportedValue("ImportConnectionInfo", connectionInfo);
container.ComposeExportedValue("ImportContext", context);
container.ComposeParts(this);
if (this.ImportClients.Count == 0)
{
throw new InvalidOperationException(
"The import cannot be completed because no plugins were discovered.");
}
List <Lazy <IImportClient> > candidates = this.ImportClients.ToList();
if (candidates.Count > 1)
{
throw new InvalidOperationException(
"The import cannot be completed because more than 1 plugin was discovered.");
}
IImportClient client = candidates[0].Value;
return(client);
}
public void Dispose()
{
catalog.Dispose();
container.Dispose();
}
public void Dispose()
{
_catalog.Dispose();
_container.Dispose();
}
public void Dispose()
{
RootContainer.Dispose();
_rootCatalog.Dispose();
}
public void Dispose()
{
_fileWatcher?.Dispose();
_container?.Dispose();
_catalog?.Dispose();
}
internal void Register(IList <Tuple <string, string> > pathsToScan)
{
RegisteringEventArgs rea = new RegisteringEventArgs();
OnRegistering(rea);
AggregateCatalog aggc = new AggregateCatalog();
List <DirectoryCatalog> catalogs = new List <DirectoryCatalog>();
List <ComposablePartDefinition> parts = new List <ComposablePartDefinition>();
foreach (var pathScan in pathsToScan)
{
string folder = String.IsNullOrEmpty(pathScan.Item1) ? System.IO.Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location) : pathScan.Item1; //Default if empty
string path = System.IO.Path.Combine(folder, pathScan.Item2); //Full path
if (!catalogs.Exists(x => System.IO.Path.Combine(x.FullPath.ToUpperInvariant(), x.SearchPattern).ToUpperInvariant() == path.ToUpperInvariant()))
{ //Check if same path is already loaded
DirectoryCatalog dc = new DirectoryCatalog(folder, pathScan.Item2);
if (dc.Parts.All(x => parts.Exists(y => y.ToString() == x.ToString())))
{//Check all parts, same assembly with different name or same assembly in two differents locations
dc.Dispose();
}
else
{
parts.AddRange(dc.Parts);
if (dc.LoadedFiles.Count() > 0)
{//Only add if assemblies loaded
catalogs.Add(dc);
for (int i = 0; i < catalogs.IndexOf(dc); i++)
{
if (catalogs.ElementAt(i).LoadedFiles.Intersect(dc.LoadedFiles).Count() > 0)
{ //There are similar files
if (catalogs.ElementAt(i).LoadedFiles.Count() > dc.LoadedFiles.Count())
{ //One of them could have more files than another, take the higher
catalogs.Remove(dc);
}
else
{
catalogs.Remove(catalogs.ElementAt(i));
}
}
}
}
}
}
}
catalogs.ForEach(x => aggc.Catalogs.Add(x));
aggc.Catalogs.Add(rea.TypeCatalog);
ContainerSimple = new CompositionContainer(aggc, CompositionOptions.DisableSilentRejection | CompositionOptions.IsThreadSafe);
var scopeDefDependent = new CompositionScopeDefinition(ContainerSimple.Catalog, null);
var appCatalog = new TypeCatalog(typeof(ApplicationFactory <>));
var scopeDefRoot = new CompositionScopeDefinition(appCatalog, new[] { scopeDefDependent });
ContainerFactory = new CompositionContainer(scopeDefRoot, CompositionOptions.IsThreadSafe);
OnRegistered(new RegisteredEventArgs(this.ContainerSimple, this.ContainerFactory));
}
