我只是想做同樣的事情,除了我想將我的腳本存儲爲嵌入式資源。我創建了一個C#和IronPython混合使用的庫,並希望將其作爲單個DLL進行分發。我編寫了一個可以工作的PlatformAdaptationLayer,它首先查看正在加載的腳本的資源,然後回退到查找文件系統的基本實現。三個部分組成的:
第1部分,自定義PlatformAdaptationLayer
namespace ZenCoding.Hosting
{
internal class ResourceAwarePlatformAdaptationLayer : PlatformAdaptationLayer
{
private readonly Dictionary<string, string> _resourceFiles = new Dictionary<string, string>();
private static readonly char Seperator = Path.DirectorySeparatorChar;
private const string ResourceScriptsPrefix = "ZenCoding.python.";
public ResourceAwarePlatformAdaptationLayer()
{
CreateResourceFileSystemEntries();
}
#region Private methods
private void CreateResourceFileSystemEntries()
{
foreach (string name in Assembly.GetExecutingAssembly().GetManifestResourceNames())
{
if (!name.EndsWith(".py"))
{
continue;
}
string filename = name.Substring(ResourceScriptsPrefix.Length);
filename = filename.Substring(0, filename.Length - 3); //Remove .py
filename = filename.Replace('.', Seperator);
_resourceFiles.Add(filename + ".py", name);
}
}
private Stream OpenResourceInputStream(string path)
{
string resourceName;
if (_resourceFiles.TryGetValue(RemoveCurrentDir(path), out resourceName))
{
return Assembly.GetExecutingAssembly().GetManifestResourceStream(resourceName);
}
return null;
}
private bool ResourceDirectoryExists(string path)
{
return _resourceFiles.Keys.Any(f => f.StartsWith(RemoveCurrentDir(path) + Seperator));
}
private bool ResourceFileExists(string path)
{
return _resourceFiles.ContainsKey(RemoveCurrentDir(path));
}
private static string RemoveCurrentDir(string path)
{
return path.Replace(Directory.GetCurrentDirectory() + Seperator, "").Replace("." + Seperator, "");
}
#endregion
#region Overrides from PlatformAdaptationLayer
public override bool FileExists(string path)
{
return ResourceFileExists(path) || base.FileExists(path);
}
public override string[] GetFileSystemEntries(string path, string searchPattern, bool includeFiles, bool includeDirectories)
{
string fullPath = Path.Combine(path, searchPattern);
if (ResourceFileExists(fullPath) || ResourceDirectoryExists(fullPath))
{
return new[] { fullPath };
}
if (!ResourceDirectoryExists(path))
{
return base.GetFileSystemEntries(path, searchPattern, includeFiles, includeDirectories);
}
return new string[0];
}
public override bool DirectoryExists(string path)
{
return ResourceDirectoryExists(path) || base.DirectoryExists(path);
}
public override Stream OpenInputFileStream(string path)
{
return OpenResourceInputStream(path) ?? base.OpenInputFileStream(path);
}
public override Stream OpenInputFileStream(string path, FileMode mode, FileAccess access, FileShare share)
{
return OpenResourceInputStream(path) ?? base.OpenInputFileStream(path, mode, access, share);
}
public override Stream OpenInputFileStream(string path, FileMode mode, FileAccess access, FileShare share, int bufferSize)
{
return OpenResourceInputStream(path) ?? base.OpenInputFileStream(path, mode, access, share, bufferSize);
}
#endregion
}
}
您將需要不斷ResourceScriptsPrefix改變無論你的基地命名空間是您存儲的Python腳本。
2部分,自定義ScriptHost
namespace ZenCoding.Hosting
{
internal class ResourceAwareScriptHost : ScriptHost
{
private readonly PlatformAdaptationLayer _layer = new ResourceAwarePlatformAdaptationLayer();
public override PlatformAdaptationLayer PlatformAdaptationLayer
{
get { return _layer; }
}
}
}
3部分,最後,如何使用自定義的東西拿到一個Python引擎:
namespace ZenCoding.Hosting
{
internal static class ResourceAwareScriptEngineSetup
{
public static ScriptEngine CreateResourceAwareEngine()
{
var setup = Python.CreateRuntimeSetup(null);
setup.HostType = typeof(ResourceAwareScriptHost);
var runtime = new ScriptRuntime(setup);
return runtime.GetEngineByTypeName(typeof(PythonContext).AssemblyQualifiedName);
}
}
}
這將是很容易改變這個加載腳本從其他位置,如數據庫。只需更改OpenResourceStream,ResourceFileExists和ResourceDirectoryExists方法。
希望這會有所幫助。
謝謝!我的用例與您的用例完全相同。 – 2011-10-26 06:37:13