/// <summary>
/// Scans the specified directories for components not already present in cache.
/// </summary>
/// <param name="directories">The directories.</param>
/// <param name="workspaceTypeDirectories">The workspace type directories.</param>
/// <param name="cachedFiles">Components already loaded in the cache.</param>
/// <param name="results">.</param>
/// <returns>
/// True or False depending on the success of the scanning operation.
/// </returns>
public static bool Scan(IEnumerable <string> directories, IEnumerable <string> workspaceTypeDirectories,
ISet <string> cachedFiles, ComponentScanResults results)
{
bool success = true;
AppDomain newDomain = null;
try
{
var libraryHelper = new LibraryHelper(workspaceTypeDirectories);
newDomain = libraryHelper.CreateDomain("ComponentScanner", false);
newDomain.Load(Assembly.GetExecutingAssembly().GetName());
// Preload the workspace types so that the component scanner won't barf when a component references a workspace type.
libraryHelper.PreloadWorkspaceTypes(newDomain);
ComponentScanner scanner = (ComponentScanner)newDomain.CreateInstanceAndUnwrap(Assembly.GetExecutingAssembly().FullName, typeof(ComponentScanner).FullName, false, BindingFlags.Instance | BindingFlags.NonPublic, null, null, null, null);
if (!RuntimeInfo.IsRunInMono)
{
scanner.Scan(directories, cachedFiles);
}
else
{
scanner.Scan(directories, new List <string>(cachedFiles));
}
results.NewFilesLoaded = new List <FileDescriptor>(scanner.NewFilesLoaded);
results.RequestedFiles = new List <string>(scanner.FilesToGetFromCache);
results.Errors = new List <string>(scanner.Errors);
}
catch (Exception e)
{
success = false;
results.NewFilesLoaded = new List <FileDescriptor>();
results.RequestedFiles = new List <string>();
results.OldGuidToNewGuidMap = new Dictionary <string, string>();
results.Errors = results.Errors ?? new List <string>();
results.Errors.Add(e.Message);
}
finally
{
if (newDomain != null)
{
#if !MONO_DEV
//appdomain unload crashes mono.exe process when running directly from
//Mono Develop, possibly because attached debugger. When run normally works fine.
//use MONO_DEV compiler symbol when developing
AppDomain.Unload(newDomain);
#endif
}
}
return(success);
}
/// <summary>
/// Processes the ComponentScanResults by extracting the new files read during scanning and
/// by adding the requested MetadataDefinition to the results.
/// </summary>
/// <param name="results">The results from scanning.</param>
public void ProcessComponentScanResults(ComponentScanResults results)
{
foreach (string filePath in results.RequestedFiles)
{
try
{
FileDescriptor file = this.m_componentFiles[filePath];
if (file is AssemblyFileDescriptor)
{
AssemblyFileDescriptor assembly = (AssemblyFileDescriptor)file;
foreach (ComponentMetadataDefinition metadata in assembly.MetadataCollection)
{
if (!results.Components.Contains(metadata.ID))
{
results.Components.Add(metadata);
string GuidID;
if (assembly.NewGuidToOldGuid.TryGetValue(metadata.ID, out GuidID))
{
results.OldGuidToNewGuidMap.Add(GuidID, metadata.ID);
}
}
else
{
MetadataDefinition oldMetadata = results.Components[metadata.ID];
string msg = String.Format(Messages.SameComponents, oldMetadata.Classname, oldMetadata.Assembly,
metadata.Classname, metadata.Assembly);
NLog.LogManager.GetCurrentClassLogger().Warn(msg);
results.Errors.Add(msg);
}
}
}
else if (file is CompositeComponentFileDescriptor)
{
CompositeComponentFileDescriptor component = (CompositeComponentFileDescriptor)file;
if (!results.CompositeComponents.Contains(component.MetadataDefinition.ID))
{
results.CompositeComponents.Add(component.MetadataDefinition);
}
else
{
MetadataDefinition oldMetadata = results.CompositeComponents[component.MetadataDefinition.ID];
string msg = String.Format(Messages.SameComponents, oldMetadata.Classname, oldMetadata.Assembly,
component.MetadataDefinition.Classname, component.MetadataDefinition.Assembly);
NLog.LogManager.GetCurrentClassLogger().Warn(msg);
results.Errors.Add(msg);
}
}
}
catch (KeyNotFoundException)
{
}
}
}
/// <summary>
/// Scans the specified directories for components not already present in cache.
/// </summary>
/// <param name="directories">The directories.</param>
/// <param name="workspaceTypeDirectories">The workspace type directories.</param>
/// <param name="cachedFiles">Components already loaded in the cache.</param>
/// <param name="results">.</param>
/// <returns>
/// True or False depending on the success of the scanning operation.
/// </returns>
public static bool Scan(IEnumerable<string> directories, IEnumerable<string> workspaceTypeDirectories,
ISet<string> cachedFiles, ComponentScanResults results)
{
bool success = true;
AppDomain newDomain = null;
try
{
var libraryHelper = new LibraryHelper(workspaceTypeDirectories);
newDomain = libraryHelper.CreateDomain("ComponentScanner", false);
newDomain.Load(Assembly.GetExecutingAssembly().GetName());
// Preload the workspace types so that the component scanner won't barf when a component references a workspace type.
libraryHelper.PreloadWorkspaceTypes(newDomain);
ComponentScanner scanner = (ComponentScanner)newDomain.CreateInstanceAndUnwrap(Assembly.GetExecutingAssembly().FullName, typeof(ComponentScanner).FullName, false, BindingFlags.Instance | BindingFlags.NonPublic, null, null, null, null);
if (!RuntimeInfo.IsRunInMono)
{
scanner.Scan(directories, cachedFiles);
}
else
{
scanner.Scan(directories, new List<string>(cachedFiles));
}
results.NewFilesLoaded = new List<FileDescriptor>(scanner.NewFilesLoaded);
results.RequestedFiles = new List<string>(scanner.FilesToGetFromCache);
results.Errors = new List<string>(scanner.Errors);
}
catch (Exception e)
{
success = false;
results.NewFilesLoaded = new List<FileDescriptor>();
results.RequestedFiles = new List<string>();
results.OldGuidToNewGuidMap = new Dictionary<string, string>();
results.Errors = results.Errors ?? new List<string>();
results.Errors.Add(e.Message);
}
finally
{
if (newDomain != null)
{
#if !MONO_DEV
//appdomain unload crashes mono.exe process when running directly from
//Mono Develop, possibly because attached debugger. When run normally works fine.
//use MONO_DEV compiler symbol when developing
AppDomain.Unload(newDomain);
#endif
}
}
return success;
}