/// <summary>
/// 引用第三方包，配置文件中配置引用key=对应服务的应用名
/// </summary>
/// <param name="metadataReferences"></param>
/// <param name="appName"></param>
private static void ReferenceAssemblyByAppName(AdvancedCache <string, List <MetadataReference> > metadataReferences, string appName)
{
//这里配置的程序集引用要写文件全名，包括路径和后缀
var assemblyInfos = AssemblyReferenceConfig.GetAssemblyInfoByAppName(appName);
//为不为空都把默认执行路径加上扫描
var dirs = SettingsConfigHelper.GetReferenceDirs();
if (dirs == null || !dirs.Any())
{
dirs = new List <string>();
}
dirs.Insert(0, AppContext.BaseDirectory);
if (assemblyInfos != null && assemblyInfos.Any())
{
foreach (var assemblyInfo in assemblyInfos)
{
foreach (var dir in dirs)
{
var fileFullPath = Path.Combine(dir, assemblyInfo.Assembly);
if (!File.Exists(fileFullPath))
{
_logger.Debug($"reference file [{fileFullPath}] in config not found.");
continue;
}
//如果文件存在，则加载完成后跳过后续扫描
metadataReferences[AppSettingsConfigHelper.GetAppName()].Add(MetadataReference.CreateFromFile(fileFullPath));
break;
}
}
}
}
/// <summary>
/// Create Assembly whick will run
/// </summary>
/// <param name="script"></param>
/// <param name="errorMsg"></param>
/// <returns></returns>
private Assembly CreateAsmExecutor(string script, out string errorMsg)
{
errorMsg = null;
var assemblyName = _scriptHash;
var sourceTree = CSharpSyntaxTree.ParseText(script, path: assemblyName + ".cs", encoding: Encoding.UTF8);
var references = _metadataReferences[AppSettingsConfigHelper.GetAppName()];
var compilation = CSharpCompilation.Create(assemblyName,
new[] { sourceTree }, references,
new CSharpCompilationOptions(OutputKind.DynamicallyLinkedLibrary).WithOptimizationLevel(SettingsConfigHelper.IsDebug() ? OptimizationLevel.Debug : OptimizationLevel.Release));
Assembly assembly;
using (var assemblyStream = new MemoryStream())
{
using (var pdbStream = new MemoryStream())
{
var emitResult = compilation.Emit(assemblyStream, pdbStream);
if (emitResult.Success)
{
var assemblyBytes = assemblyStream.GetBuffer();
var pdbBytes = pdbStream.GetBuffer();
assembly = Assembly.Load(assemblyBytes, pdbBytes);
//output files
if (SettingsConfigHelper.IsOutPutFiles())
{
if (SettingsConfigHelper.IsOutPutAllFiles())
{
OutputDynamicScriptAllFile(script, assemblyName, assemblyBytes, pdbBytes);
}
else
{
OutputDynamicScriptDllFile(assemblyName, assemblyBytes);
}
}
}
else
{
var msgs = new StringBuilder();
foreach (var msg in emitResult.Diagnostics.Where(d => d.Severity == DiagnosticSeverity.Error).Select(d => string.Format("[{0}]:{1}({2})", d.Id, d.GetMessage(), d.Location.GetLineSpan().StartLinePosition)))
{
msgs.AppendLine(msg);
if (SettingsConfigHelper.IsOutPutFiles())
{
WriteDynamicScriptCs(Path.Combine(EnsureOutputPath(), assemblyName + ".cs"), script);
}
_logger.Error(String.Format("{0}：{1}：{2}：{3}：{4}", _tenantId, "CSharp", _projectName, msg, _scriptHash));
}
errorMsg = msgs.ToString();
return(null);
}
}
}
_logger.Debug($"CreateAsmExecutor->_context:{_tenantId},{"CSharp"}, {_projectName},{_scriptHash} _scriptTypeDict:{_scriptTypeDict?.Count} _metadataReferences:{ _metadataReferences[_projectName]?.Count}");
return(assembly);
}
public static void InitMetadataReferences(AdvancedCache <string, List <MetadataReference> > metadataReferences)
{
if (!metadataReferences.ContainsKey(AppSettingsConfigHelper.GetAppName()))
{
metadataReferences.Insert(AppSettingsConfigHelper.GetAppName(), new List <MetadataReference>(), CacheStrategy.Permanent);
}
ReferenceNecessaryAssembly(metadataReferences);
ReferenceSystemAssembly(metadataReferences);
ReferenceExternalAssembly(metadataReferences);
var referenceArrayJson = Newtonsoft.Json.JsonConvert.SerializeObject(metadataReferences[AppSettingsConfigHelper.GetAppName()]?.Select(t => t.Display)?.ToArray());
_logger.Debug($"dll加载完毕,加载信息如下：{referenceArrayJson}");
}
private static void ReferenceNecessaryAssembly(AdvancedCache <string, List <MetadataReference> > metadataReferences)
{
var assemblyPath = Path.GetDirectoryName(typeof(object).Assembly.Location);
var references = new[]
{
MetadataReference.CreateFromFile(Path.Combine(assemblyPath, "System.dll")),
MetadataReference.CreateFromFile(Path.Combine(assemblyPath, "mscorlib.dll")),
MetadataReference.CreateFromFile(Path.Combine(assemblyPath, "netstandard.dll")),
MetadataReference.CreateFromFile(Path.Combine(assemblyPath, "System.Core.dll")),
MetadataReference.CreateFromFile(Path.Combine(assemblyPath, "System.Runtime.dll")),
MetadataReference.CreateFromFile(Path.Combine(assemblyPath, "Microsoft.CSharp.dll")),
MetadataReference.CreateFromFile(Path.Combine(assemblyPath, "System.Collections.dll")),
MetadataReference.CreateFromFile(Path.Combine(assemblyPath, "System.Linq.dll")),
MetadataReference.CreateFromFile(typeof(object).Assembly.Location),
MetadataReference.CreateFromFile(typeof(System.Xml.XmlReader).Assembly.Location),
MetadataReference.CreateFromFile(typeof(System.Net.HttpWebRequest).Assembly.Location),
MetadataReference.CreateFromFile(typeof(System.Net.Http.HttpClient).Assembly.Location),
MetadataReference.CreateFromFile(typeof(Enumerable).Assembly.Location),
MetadataReference.CreateFromFile(typeof(System.Runtime.Serialization.DataContractSerializer).Assembly.Location),
};
metadataReferences[AppSettingsConfigHelper.GetAppName()].AddRange(references);
}
public static List <AssemblyInfo> GetCurrentAppAssemblyReferenceInfos()
{
return(Instance?.Where(t => t.AppName.ToUpper().Equals(DefaultAppName) || t.AppName.Equals(AppSettingsConfigHelper.GetAppName()))?.Select(t => new AssemblyInfo {
AppName = t.AppName, Assembly = t.Assembly
})?.ToList());
}
public void GetCurrentAppName()
{
var currentAppName = AppSettingsConfigHelper.GetAppName();
Assert.NotNull(currentAppName);
}
private static void ReferenceExternalAssembly(AdvancedCache <string, List <MetadataReference> > metadataReferences)
{
ReferenceAssemblyByAppName(metadataReferences, AppSettingsConfigHelper.GetAppName());
}