82 lines
2.7 KiB
C#
82 lines
2.7 KiB
C#
// ------------------------------------------------------------
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// Copyright (c) Microsoft Corporation. All rights reserved.
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// Licensed under the MIT License (MIT). See LICENSE in the repo root for license information.
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// ------------------------------------------------------------
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using System;
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using Microsoft.OpenApi.OData.Vocabulary;
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namespace Microsoft.OpenApi.OData.Common
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{
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/// <summary>
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/// Utilities methods
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/// </summary>
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public static class Utils
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{
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/// <summary>
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/// Get the term qualified name when using the type of <typeparamref name="T"/>
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/// </summary>
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/// <typeparam name="T">The type of the term.</typeparam>
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/// <returns>The qualified name.</returns>
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public static string GetTermQualifiedName<T>()
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{
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object[] attributes = typeof(T).GetCustomAttributes(typeof(TermAttribute), false);
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if (attributes == null && attributes.Length == 0)
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{
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return null;
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}
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TermAttribute term = (TermAttribute)attributes[0];
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return term.QualifiedName;
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}
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/// <summary>
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/// Upper the first character of the string.
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/// </summary>
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/// <param name="input">The input string.</param>
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/// <returns>The changed string.</returns>
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public static string UpperFirstChar(string input)
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{
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if (input == null)
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{
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return input;
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}
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char first = Char.ToUpper(input[0]);
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return first + input.Substring(1);
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}
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/// <summary>
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/// Check the input argument whether its value is null or not.
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/// </summary>
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/// <typeparam name="T">The input value type.</typeparam>
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/// <param name="value">The input value</param>
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/// <param name="parameterName">The input parameter name.</param>
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/// <returns>The input value.</returns>
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internal static T CheckArgumentNull<T>(T value, string parameterName) where T : class
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{
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if (null == value)
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{
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throw new ArgumentNullException(parameterName);
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}
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return value;
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}
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/// <summary>
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/// Check the input string null or empty.
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/// </summary>
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/// <param name="value">The input string</param>
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/// <param name="parameterName">The input parameter name.</param>
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/// <returns>The input value.</returns>
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internal static string CheckArgumentNullOrEmpty(string value, string parameterName)
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{
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if (String.IsNullOrEmpty(value))
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{
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throw Error.ArgumentNullOrEmpty(parameterName);
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}
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return value;
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}
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}
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} |