/// <summary>
/// Scans the specified directories for composite components.
/// </summary>
/// <param name="componentsDirectoryPath">Directories to be scanned.</param>
/// <param name="cachedFiles">Paths of files already stored in the cache.</param>
private void ScanForCompositeComponents(IEnumerable <string> componentsDirectoryPath, ISet <string> cachedFiles)
{
var pathSet = new HashSet <string>(componentsDirectoryPath);
var serializer = TraceLab.Core.Serialization.XmlSerializerFactory.GetSerializer(typeof(CompositeComponentMetadataDefinition), null);
foreach (var dir in pathSet)
{
string[] filePaths = GetCompositeComponentFiles(dir);
if (filePaths == null)
{
continue;
}
foreach (var filename in filePaths)
{
string fullPath = Path.GetFullPath(filename);
if (cachedFiles.Contains(fullPath))
{
FilesToGetFromCache.Add(fullPath);
}
else
{
CompositeComponentFileDescriptor compFile = ReadCompositeComponentFile(serializer, filename);
if (compFile != null)
{
NewFilesLoaded.Add(compFile);
FilesToGetFromCache.Add(fullPath);
}
}
}
}
}
/// <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>
/// Reads the composite component file. It deserializes the xml file of composite component.
/// </summary>
/// <param name="serializer">The serializer.</param>
/// <param name="filename">The filename.</param>
/// <returns></returns>
private CompositeComponentFileDescriptor ReadCompositeComponentFile(XmlSerializer serializer, string filename)
{
CompositeComponentFileDescriptor file = null;
try
{
var reader = XmlReader.Create(filename);
var compositeComponentDefinition = (CompositeComponentMetadataDefinition)serializer.Deserialize(reader);
compositeComponentDefinition.Assembly = filename;
file = new CompositeComponentFileDescriptor(filename, compositeComponentDefinition);
}
catch (Exception e)
{
// Catch everything, just log
// Basically, if an exception is thrown, then this is not a valid Component.
file = null;
var message = e.InnerException != null ? e.InnerException.Message : e.Message;
message = string.Format("Unable to load composite component {0}: {1}", filename, message);
Errors.Add(message);
}
return(file);
}
/// <summary>
/// Reads the composite component file. It deserializes the xml file of composite component.
/// </summary>
/// <param name="serializer">The serializer.</param>
/// <param name="filename">The filename.</param>
/// <returns></returns>
private CompositeComponentFileDescriptor ReadCompositeComponentFile(XmlSerializer serializer, string filename)
{
CompositeComponentFileDescriptor file = null;
try
{
var reader = XmlReader.Create(filename);
var compositeComponentDefinition = (CompositeComponentMetadataDefinition)serializer.Deserialize(reader);
compositeComponentDefinition.Assembly = filename;
file = new CompositeComponentFileDescriptor(filename, compositeComponentDefinition);
}
catch (Exception e)
{
// Catch everything, just log
// Basically, if an exception is thrown, then this is not a valid Component.
file = null;
var message = e.InnerException != null ? e.InnerException.Message : e.Message;
message = string.Format("Unable to load composite component {0}: {1}", filename, message);
Errors.Add(message);
}
return file;
}
