/// <summary>
/// 执行Python。通过source和是否存在文件自动判别执行类型
/// 如果是文件（.py结尾）
/// 首先在Script目录下寻找.py源文件名，再在数据库ResourceInfo中寻找
/// 再在Script目录下寻找单个.py编译成的同名Assembly。
/// 如果还找不到，则在工作目录下找"PythonScript.dll，执行对应方法。
/// 在.py文件中，执行的是execute方法（如果带当前窗口参数，参数是masterForm)
/// 如果不是，则按照Statement执行。
/// </summary>
/// <param name="source"></param>
/// <param name="processParams"></param>
/// <returns></returns>
public static object TryExecutePython(string source, Dictionary <string, object> processParams)
{
try
{
if (source.EndsWith(".py", StringComparison.InvariantCulture))
{
string filePath = ServiceProvider.GetService <IApplicationDirectory>().GetLocalResourcePath(source);
if (System.IO.File.Exists(filePath))
{
return(PythonHelper.ExecutePythonFile(filePath, processParams));
}
else
{
ResourceContent pythonResource = ResourceInfoHelper.ResolveResource(source, ResourceType.PythonSource);
if (pythonResource != null)
{
switch (pythonResource.Type)
{
case ResourceContentType.File:
return(PythonHelper.ExecutePythonFile(pythonResource.Content.ToString(), processParams));
case ResourceContentType.String:
return(PythonHelper.ExecutePythonStatement(pythonResource.Content.ToString(), processParams));
default:
throw new NotSupportedException("Invalid Resource Content Type!");
}
}
else
{
string singleAssemblyPath = System.IO.Path.ChangeExtension(filePath, ".dll");
if (System.IO.File.Exists(singleAssemblyPath))
{
return(PythonHelper.ExecutePythonAssembly(singleAssemblyPath, System.IO.Path.GetFileName(filePath), processParams));
}
else
{
string combileAssemblyPath = System.IO.Path.Combine(ServiceProvider.GetService <IApplicationDirectory>().GetMainDirectory(), s_pythonCompiledAssembly);
if (System.IO.File.Exists(combileAssemblyPath))
{
return(PythonHelper.ExecutePythonAssembly(combileAssemblyPath, System.IO.Path.GetFileName(filePath), processParams));
}
else
{
return(null);
}
}
}
}
}
else
{
if (source.Contains("result = "))
{
return(PythonHelper.ExecutePythonStatement(source, processParams));
}
else
{
return(PythonHelper.ExecutePythonExpression(source, processParams));
}
}
}
catch (Exception ex)
{
throw new ArgumentException(string.Format("Python source {0} is invalid!", source), ex);
}
}
