ViewEngineTemplate.cs
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using NCC.Dependency;
using NCC.Extensions;
using NCC.Reflection;
using System;
using System.IO;
using System.Threading.Tasks;
namespace NCC.ViewEngine
{
/// <summary>
/// 视图引擎模板（编译后）
/// </summary>
[SuppressSniffer]
public class ViewEngineTemplate : IViewEngineTemplate
{
/// <summary>
/// 内存流
/// </summary>
private readonly MemoryStream assemblyByteCode;
/// <summary>
/// 模板类型
/// </summary>
private readonly Type templateType;
/// <summary>
/// 构造函数
/// </summary>
/// <param name="assemblyByteCode"></param>
internal ViewEngineTemplate(MemoryStream assemblyByteCode)
{
this.assemblyByteCode = assemblyByteCode;
templateType = Reflect.GetType(assemblyByteCode, "NCC.ViewEngine.Template");
}
/// <summary>
/// 保存到流中
/// </summary>
/// <param name="stream"></param>
public void SaveToStream(Stream stream)
{
SaveToStreamAsync(stream).GetAwaiter().GetResult();
}
/// <summary>
/// 保存到流中
/// </summary>
/// <param name="stream"></param>
/// <returns></returns>
public Task SaveToStreamAsync(Stream stream)
{
return assemblyByteCode.CopyToAsync(stream);
}
/// <summary>
/// 保存到文件
/// </summary>
/// <param name="fileName"></param>
public void SaveToFile(string fileName)
{
SaveToFileAsync(fileName).GetAwaiter().GetResult();
}
/// <summary>
/// 保存到文件
/// </summary>
/// <param name="fileName"></param>
/// <returns></returns>
public async Task SaveToFileAsync(string fileName)
{
using var fileStream = new FileStream(
path: Penetrates.GetTemplateFileName(fileName),
mode: FileMode.OpenOrCreate,
access: FileAccess.Write,
share: FileShare.None,
bufferSize: 8192,
useAsync: true);
await assemblyByteCode.CopyToAsync(fileStream);
}
/// <summary>
/// 执行编译
/// </summary>
/// <param name="model"></param>
/// <returns></returns>
public string Run(object model = null)
{
return RunAsync(model).GetAwaiter().GetResult();
}
/// <summary>
/// 执行编译
/// </summary>
/// <param name="model"></param>
/// <returns></returns>
public async Task<string> RunAsync(object model = null)
{
if (model != null && model.IsAnonymous())
{
model = new AnonymousTypeWrapper(model);
}
var instance = (IViewEngineModel)Activator.CreateInstance(templateType);
instance.Model = model;
await instance.ExecuteAsync();
return await instance.ResultAsync();
}
/// <summary>
/// 从文件中加载模板
/// </summary>
/// <param name="fileName"></param>
/// <returns></returns>
public static IViewEngineTemplate LoadFromFile(string fileName)
{
return LoadFromFileAsync(fileName: fileName).GetAwaiter().GetResult();
}
/// <summary>
/// 从文件中加载模板
/// </summary>
/// <param name="fileName"></param>
/// <returns></returns>
public static async Task<IViewEngineTemplate> LoadFromFileAsync(string fileName)
{
using var memoryStream = new MemoryStream();
using (var fileStream = new FileStream(
path: Penetrates.GetTemplateFileName(fileName),
mode: FileMode.Open,
access: FileAccess.Read,
share: FileShare.None,
bufferSize: 8192,
useAsync: true))
{
await fileStream.CopyToAsync(memoryStream);
}
return new ViewEngineTemplate(memoryStream);
}
/// <summary>
/// 从流中加载模板
/// </summary>
/// <param name="stream"></param>
/// <returns></returns>
public static IViewEngineTemplate LoadFromStream(Stream stream)
{
return LoadFromStreamAsync(stream).GetAwaiter().GetResult();
}
/// <summary>
/// 从流中加载模板
/// </summary>
/// <param name="stream"></param>
/// <returns></returns>
public static async Task<IViewEngineTemplate> LoadFromStreamAsync(Stream stream)
{
var memoryStream = new MemoryStream();
await stream.CopyToAsync(memoryStream);
memoryStream.Position = 0;
return new ViewEngineTemplate(memoryStream);
}
}
/// <summary>
/// 视图引擎模板（编译后）
/// </summary>
/// <typeparam name="T"></typeparam>
[SuppressSniffer]
public class ViewEngineTemplate<T> : IViewEngineTemplate<T>
where T : IViewEngineModel
{
/// <summary>
/// 内存流
/// </summary>
private readonly MemoryStream assemblyByteCode;
/// <summary>
/// 内存流
/// </summary>
private readonly Type templateType;
/// <summary>
/// 构造函数
/// </summary>
/// <param name="assemblyByteCode"></param>
internal ViewEngineTemplate(MemoryStream assemblyByteCode)
{
this.assemblyByteCode = assemblyByteCode;
templateType = Reflect.GetType(assemblyByteCode, "NCC.ViewEngine.Template");
}
/// <summary>
/// 保存到流中
/// </summary>
/// <param name="stream"></param>
public void SaveToStream(Stream stream)
{
SaveToStreamAsync(stream).GetAwaiter().GetResult();
}
/// <summary>
/// 保存到流中
/// </summary>
/// <param name="stream"></param>
/// <returns></returns>
public Task SaveToStreamAsync(Stream stream)
{
return assemblyByteCode.CopyToAsync(stream);
}
/// <summary>
/// 保存到文件中
/// </summary>
/// <param name="fileName"></param>
public void SaveToFile(string fileName)
{
SaveToFileAsync(fileName).GetAwaiter().GetResult();
}
/// <summary>
/// 保存到文件中
/// </summary>
/// <param name="fileName"></param>
/// <returns></returns>
public async Task SaveToFileAsync(string fileName)
{
using var fileStream = new FileStream(
path: Penetrates.GetTemplateFileName(fileName),
mode: FileMode.OpenOrCreate,
access: FileAccess.Write,
share: FileShare.None,
bufferSize: 8192,
useAsync: true);
await assemblyByteCode.CopyToAsync(fileStream);
}
/// <summary>
/// 执行编译
/// </summary>
/// <param name="initializer"></param>
/// <returns></returns>
public string Run(Action<T> initializer)
{
return RunAsync(initializer).GetAwaiter().GetResult();
}
/// <summary>
/// 执行编译
/// </summary>
/// <param name="initializer"></param>
/// <returns></returns>
public async Task<string> RunAsync(Action<T> initializer)
{
var instance = (T)Activator.CreateInstance(templateType);
initializer(instance);
await instance.ExecuteAsync();
return await instance.ResultAsync();
}
/// <summary>
/// 从文件中加载模板
/// </summary>
/// <param name="fileName"></param>
/// <returns></returns>
public static IViewEngineTemplate<T> LoadFromFile(string fileName)
{
return LoadFromFileAsync(fileName: fileName).GetAwaiter().GetResult();
}
/// <summary>
/// 从文件中加载模板
/// </summary>
/// <param name="fileName"></param>
/// <returns></returns>
public static async Task<IViewEngineTemplate<T>> LoadFromFileAsync(string fileName)
{
using var memoryStream = new MemoryStream();
using (var fileStream = new FileStream(
path: Penetrates.GetTemplateFileName(fileName),
mode: FileMode.Open,
access: FileAccess.Read,
share: FileShare.None,
bufferSize: 8192,
useAsync: true))
{
await fileStream.CopyToAsync(memoryStream);
}
return new ViewEngineTemplate<T>(memoryStream);
}
/// <summary>
/// 从流中加载模板
/// </summary>
/// <param name="stream"></param>
/// <returns></returns>
public static IViewEngineTemplate<T> LoadFromStream(Stream stream)
{
return LoadFromStreamAsync(stream).GetAwaiter().GetResult();
}
/// <summary>
/// 从流中加载模板
/// </summary>
/// <param name="stream"></param>
/// <returns></returns>
public static async Task<IViewEngineTemplate<T>> LoadFromStreamAsync(Stream stream)
{
var memoryStream = new MemoryStream();
await stream.CopyToAsync(memoryStream);
memoryStream.Position = 0;
return new ViewEngineTemplate<T>(memoryStream);
}
}
}