63 lines
1.6 KiB
C#
63 lines
1.6 KiB
C#
/*
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* Copyright (c) 2020 ETH Zürich, Educational Development and Technology (LET)
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*/
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Xml.Linq;
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using SafeExamBrowser.I18n.Contracts;
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namespace SafeExamBrowser.I18n
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{
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/// <summary>
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/// Default implementation of <see cref="ITextResource"/> to load text data from XML files.
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/// </summary>
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public class XmlTextResource : ITextResource
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{
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private string path;
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/// <summary>
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/// Initializes a new text resource for an XML file located at the specified path.
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/// </summary>
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/// <exception cref="ArgumentException">If the specifed file does not exist.</exception>
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/// <exception cref="ArgumentNullException">If the given path is null.</exception>
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public XmlTextResource(string path)
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{
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if (path == null)
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{
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throw new ArgumentNullException(nameof(path));
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}
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if (!File.Exists(path))
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{
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throw new ArgumentException("The specified file does not exist!");
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}
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this.path = path;
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}
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public IDictionary<TextKey, string> LoadText()
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{
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var xml = XDocument.Load(path);
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var text = new Dictionary<TextKey, string>();
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foreach (var definition in xml.Root.Descendants())
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{
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var isEntry = definition.Name.LocalName == "Entry";
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var hasValidKey = Enum.TryParse(definition.Attribute("key")?.Value, out TextKey key);
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if (isEntry && hasValidKey)
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{
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text[key] = definition.Value?.Trim() ?? string.Empty;
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}
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}
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return text;
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}
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}
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}
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