[longomatch/redesign: 87/96] Add new service to manage templates



commit 75880aed637b40a053fbc04ead72e6b28ad739a2
Author: Andoni Morales Alastruey <ylatuya gmail com>
Date:   Sat Mar 26 19:55:38 2011 +0100

    Add new service to manage templates

 LongoMatch/Services/TemplatesService.cs |  177 +++++++++++++++++++++++++++++++
 1 files changed, 177 insertions(+), 0 deletions(-)
---
diff --git a/LongoMatch/Services/TemplatesService.cs b/LongoMatch/Services/TemplatesService.cs
new file mode 100644
index 0000000..4a2edfa
--- /dev/null
+++ b/LongoMatch/Services/TemplatesService.cs
@@ -0,0 +1,177 @@
+// 
+//  Copyright (C) 2011 Andoni Morales Alastruey
+// 
+//  This program is free software; you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation; either version 2 of the License, or
+//  (at your option) any later version.
+// 
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+//  GNU General Public License for more details.
+//  
+//  You should have received a copy of the GNU General Public License
+//  along with this program; if not, write to the Free Software
+//  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
+// 
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Reflection;
+using Mono.Unix;
+
+using LongoMatch.Common;
+using LongoMatch.Interfaces;
+using LongoMatch.Store;
+using LongoMatch.Store.Templates;
+
+
+namespace LongoMatch.Services
+{
+
+	public class TemplatesService
+	{
+		private Dictionary<Type, ITemplateProvider> dict;
+		
+		public TemplatesService (string basePath)
+		{
+			dict = new Dictionary<Type, ITemplateProvider>();
+			dict.Add(typeof(SubCategoryTemplate),
+			         new TemplatesProvider<SubCategoryTemplate> (basePath,
+			                                                 Constants.SUBCAT_TEMPLATE_EXT));
+			dict.Add(typeof(TeamTemplate),
+			         new TemplatesProvider<TeamTemplate> (basePath,
+			                                                 Constants.TEAMS_TEMPLATE_EXT));
+			dict.Add(typeof(Categories),
+			         new TemplatesProvider<Categories> (basePath,
+			                                                 Constants.CAT_TEMPLATE_EXT));
+		}
+		
+		private void CheckDefaultTemplates () {
+			foreach (ITemplateProvider t in dict.Values)
+				t.CheckDefaultTemplate();
+		}
+		
+		public ITemplateProvider<T> GetTemplateProvider<T>() where T: ITemplate {
+			if (dict.ContainsKey(typeof(T)))
+				return (ITemplateProvider<T>)dict[typeof(T)];
+			return null;
+		}
+		
+		public ITemplateProvider<SubCategoryTemplate> SubCategoriesTemplateProvider {
+			get {
+				return (ITemplateProvider<SubCategoryTemplate>) dict[typeof(SubCategoryTemplate)]; 
+			}
+		}
+		
+		public ITemplateProvider<TeamTemplate> TeamTemplateProvider {
+			get {
+				return (ITemplateProvider<TeamTemplate>) dict[typeof(TeamTemplate)]; 
+			}
+		}
+
+		public ITemplateProvider<Categories> CategoriesTemplateProvider {
+			get {
+				return (ITemplateProvider<Categories>) dict[typeof(Categories)]; 
+			}
+		}
+	}
+	
+	public class TemplatesProvider<T>: ITemplateProvider<T> where T: ITemplate
+	{
+		private readonly string basePath;
+		private readonly string extension;
+		private readonly MethodInfo methodLoad;
+		private readonly MethodInfo methodDefaultTemplate;
+		
+		public TemplatesProvider (string basePath, string extension)
+		{
+			this.basePath = System.IO.Path.Combine(basePath, Constants.TEMPLATES_DIR);
+			this.extension = extension;
+			methodLoad = typeof(T).GetMethod("Load");
+			methodDefaultTemplate = typeof(T).GetMethod("DefaultTemplate");
+		}
+		
+		private string GetPath(string filename) {
+			return System.IO.Path.Combine(basePath, filename);
+		}
+		
+		public void CheckDefaultTemplate() {
+			string path;
+			
+			path = GetPath("default" + extension);
+			if(!File.Exists(path)) {
+				Create("default");
+			}
+		}
+		
+		public bool Exists (string name) {
+			return File.Exists(GetPath(name+extension));
+		}
+		
+		public List<T> Templates{
+			get{
+				List<T> templates = new List<T>();
+				
+				foreach (string file in Directory.GetFiles (basePath, extension)) {
+					try {
+						templates.Add(Load(file));
+					} catch (Exception ex) {
+						Log.Exception(ex);
+					}
+				}
+				return templates;
+			}
+		}
+		
+		public string[] TemplatesNames{
+			get{
+				return Directory.GetFiles (basePath, extension);
+			}
+		}
+		
+		public T Load (string name) {
+			Log.Information("Loading template " +  name);
+			return (T)methodLoad.Invoke(null, new object[] {name});
+		}
+		
+		public void Save (ITemplate template) {
+			string filename = GetPath(template.Name);
+			
+			if (File.Exists(filename)) {
+				throw new Exception (Catalog.GetString("A template already exixts with " +
+				                                       "the name: ") + filename);
+			}
+			
+			/* Don't cach the Exception here to chain it up */
+			template.Save(filename);
+		}
+		
+		public void Copy(string orig, string copy) {
+			if (File.Exists(copy)) {
+				throw new Exception (Catalog.GetString("A template already exixts with " +
+				                                       "the name: ") + copy);
+			}
+			
+			Log.Information(String.Format("Copying template {0} to {1}", orig, copy));
+			File.Copy (GetPath(orig) , GetPath(copy));
+		}
+		
+		public void Delete (string templateName) {
+			try {
+				Log.Information("Deleting template " + templateName);
+				File.Delete (templateName);
+			} catch (Exception ex) {
+				Log.Exception (ex);
+			}
+		}
+		
+		public void Create (string templateName, params object[] list) {
+			Log.Information(String.Format("Creating default {0} template", typeof(T)));
+			ITemplate t =(ITemplate)methodDefaultTemplate.Invoke(null, list);
+			t.Save(GetPath(templateName));
+		}
+	}
+}
+



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