public IEnumerable<WorkflowInfo> Find(LookupOptions options)
{
foreach (var assembly in GetAssemblies(options))
{
foreach (var exportedType in assembly.GetExportedTypes())
{
var workflowType = GetWorkflowTypeIfPossible(exportedType);
if (workflowType != null)
{
LoadDllsFromAssemblyDirectory(assembly, options);
yield return CreateWorkflowInfo(exportedType, workflowType);
}
}
}
}
private void LoadDllsFromAssemblyDirectory(Assembly assembly, LookupOptions options)
{
var directory = Path.GetDirectoryName(assembly.Location);
// todo Check it!!!
AppDomain.CurrentDomain.AssemblyResolve += (sender, args) =>
{
var assemblyFileName = string.Format("{0}.dll", args.Name.Substring(0, args.Name.IndexOf(",", StringComparison.InvariantCultureIgnoreCase)));
var assemblyFullPath = Path.Combine(directory, assemblyFileName);
if (File.Exists(assemblyFullPath))
{
return Assembly.LoadFrom(assemblyFullPath);
}
return null;
};
}
protected WorkflowInfo GetWorkflowInfo(RunningOptions options, IList<IWorkflowLookup> lookups, LogHelper log)
{
log.Info("Searching for workflows...");
var lookupOptions = new LookupOptions(options);
foreach (var lookup in lookups)
{
if (lookup.CanHandle(lookupOptions))
{
log.Info("using lookup {0} for workflow searching", lookup.GetType());
var foundWorkflows = lookup.Find(lookupOptions);
return SelectDefaultWorkflow(foundWorkflows.ToList(), options, log);
}
}
throw new Exception(string.Format("No lookup to handle input file: {0}", options.InputFile));
}
protected override IEnumerable<Assembly> GetAssemblies(LookupOptions options)
{
var buildWorkflow = new BuildWorkflowProjectWorkflow(options.RunningOptions);
var executerTask = new SubflowTask<Nothing>(buildWorkflow, Identities.Empty);
var taskContext = new TaskContext(
new SequenceExecutionStrategy(),
options.RunningOptions.LogRenderer,
options.RunningOptions.WorkDirectory,
new DefaultEnvironment(),
interceptor: null);
ITaskResult<Nothing> buildResult = executerTask.Execute(taskContext);
if (buildResult.IsSuccess)
{
var projectName = options.RunningOptions.InputFile.NameWithoutExtension;
IFile assemblyFile = options.RunningOptions.InputFile.Directory["bin"]["Debug"][projectName + ".dll"];
yield return Assembly.LoadFile(assemblyFile.AbsolutePath);
}
}
public override bool CanHandle(LookupOptions options)
{
return options.RunningOptions.InputFile.Extension.Is(".dll");
}
protected override IEnumerable<Assembly> GetAssemblies(LookupOptions options)
{
yield return Assembly.LoadFile(options.RunningOptions.InputFile.AbsolutePath);
}
protected abstract IEnumerable<Assembly> GetAssemblies(LookupOptions options);
public abstract bool CanHandle(LookupOptions options);
