64 lines
2.0 KiB
C#
64 lines
2.0 KiB
C#
using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Text;
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namespace ln.templates.html
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{
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public class FileSystemTemplateSource : ITemplateSource
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{
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public String BasePath { get; }
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Dictionary<string, TemplateDocument> templateDocuments = new Dictionary<string, TemplateDocument>();
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public FileSystemTemplateSource(String path)
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{
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if (!Directory.Exists(path))
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throw new FileNotFoundException();
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BasePath = path;
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}
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public TemplateDocument GetTemplateByPath(string path)
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{
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string templatePath = Path.Combine(BasePath, path);
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if (!File.Exists(templatePath))
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{
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if (templateDocuments.ContainsKey(path))
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templateDocuments.Remove(path);
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throw new FileNotFoundException();
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}
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if (!templateDocuments.TryGetValue(path,out TemplateDocument templateDocument))
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{
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templateDocument = ReadTemplateDocument(path);
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templateDocuments[path] = templateDocument;
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} else
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{
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DateTime templateDateTime = File.GetLastWriteTime(templatePath);
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if (templateDateTime.Ticks != templateDocument.TemplateVersion)
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{
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templateDocument = ReadTemplateDocument(path);
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templateDocuments[path] = templateDocument;
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}
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}
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return templateDocument;
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}
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TemplateDocument ReadTemplateDocument(string path)
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{
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string templatePath = Path.Combine(BasePath, path);
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TemplateReader templateReader = new TemplateReader();
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using (StreamReader sr = new StreamReader(templatePath))
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{
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templateReader.Read(sr);
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}
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templateReader.TemplateDocument.TemplateVersion = File.GetLastWriteTime(templatePath).Ticks;
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return templateReader.TemplateDocument;
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}
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}
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}
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