68 lines
2.6 KiB
C#
68 lines
2.6 KiB
C#
// <copyright file="ConfigUtil.cs" company="Microsoft">
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// Copyright (c) 2009 Microsoft Corporation. All rights reserved.
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// </copyright>
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using System;
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using System.Runtime.Caching.Resources;
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using System.Collections.Specialized;
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using System.ComponentModel;
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using System.Globalization;
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namespace System.Runtime.Caching.Configuration {
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internal static class ConfigUtil {
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internal const string CacheMemoryLimitMegabytes = "cacheMemoryLimitMegabytes";
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internal const string PhysicalMemoryLimitPercentage = "physicalMemoryLimitPercentage";
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internal const string PollingInterval = "pollingInterval";
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internal const int DefaultPollingTimeMilliseconds = 120000;
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internal static int GetIntValue(NameValueCollection config, string valueName, int defaultValue, bool zeroAllowed, int maxValueAllowed) {
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string sValue = config[valueName];
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if (sValue == null) {
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return defaultValue;
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}
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int iValue;
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if (!Int32.TryParse(sValue, out iValue)
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|| iValue < 0
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|| (!zeroAllowed && iValue == 0)) {
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if (zeroAllowed) {
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throw new ArgumentException(RH.Format(R.Value_must_be_non_negative_integer, valueName, sValue), "config");
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}
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throw new ArgumentException(RH.Format(R.Value_must_be_positive_integer, valueName, sValue), "config");
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}
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if (maxValueAllowed > 0 && iValue > maxValueAllowed) {
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throw new ArgumentException(RH.Format(R.Value_too_big,
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valueName,
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sValue,
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maxValueAllowed.ToString(CultureInfo.InvariantCulture)), "config");
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}
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return iValue;
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}
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internal static int GetIntValueFromTimeSpan(NameValueCollection config, string valueName, int defaultValue) {
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string sValue = config[valueName];
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if (sValue == null) {
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return defaultValue;
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}
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if (sValue == "Infinite") {
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return Int32.MaxValue;
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}
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TimeSpan tValue;
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if (!TimeSpan.TryParse(sValue, out tValue) || tValue <= TimeSpan.Zero) {
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throw new ArgumentException(RH.Format(R.TimeSpan_invalid_format, valueName, sValue), "config");
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}
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double milliseconds = tValue.TotalMilliseconds;
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int iValue = (milliseconds < (double)Int32.MaxValue) ? (int) milliseconds : Int32.MaxValue;
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return iValue;
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}
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}
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}
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