107 lines
3.5 KiB
C#
107 lines
3.5 KiB
C#
//------------------------------------------------------------------------------
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// <copyright file="DbConnectionPoolAuthenticationContextKey.cs" company="Microsoft">
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// Copyright (c) Microsoft Corporation. All rights reserved.
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// </copyright>
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// <owner current="true" primary="true">harsudan</owner>
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// <owner current="true" primary="false">yuronhe</owner>
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//------------------------------------------------------------------------------
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using System;
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using System.Diagnostics;
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namespace System.Data.ProviderBase
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{
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/// <summary>
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/// Represents the key of dbConnectionPoolAuthenticationContext.
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/// All data members should be immutable and so, hashCode is pre-computed.
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/// </summary>
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sealed internal class DbConnectionPoolAuthenticationContextKey
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{
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/// <summary>
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/// Security Token Service Authority.
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/// </summary>
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private readonly string _stsAuthority;
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/// <summary>
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/// Service Principal Name.
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/// </summary>
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private readonly string _servicePrincipalName;
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/// <summary>
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/// Pre-Computed Hash Code.
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/// </summary>
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private readonly int _hashCode;
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internal string StsAuthority {
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get {
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return _stsAuthority;
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}
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}
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internal string ServicePrincipalName {
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get {
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return _servicePrincipalName;
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}
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}
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/// <summary>
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/// Constructor for the type.
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/// </summary>
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/// <param name="stsAuthority">Token Endpoint URL</param>
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/// <param name="servicePrincipalName">SPN representing the SQL service in an active directory.</param>
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internal DbConnectionPoolAuthenticationContextKey(string stsAuthority, string servicePrincipalName) {
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Debug.Assert(!string.IsNullOrWhiteSpace(stsAuthority));
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Debug.Assert(!string.IsNullOrWhiteSpace(servicePrincipalName));
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_stsAuthority = stsAuthority;
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_servicePrincipalName = servicePrincipalName;
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// Pre-compute hash since data members are not going to change.
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_hashCode = ComputeHashCode();
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}
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/// <summary>
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/// Override the default Equals implementation.
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/// </summary>
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/// <param name="obj"></param>
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/// <returns></returns>
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public override bool Equals(object obj) {
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if (obj == null) {
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return false;
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}
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DbConnectionPoolAuthenticationContextKey otherKey = obj as DbConnectionPoolAuthenticationContextKey;
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if (otherKey == null) {
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return false;
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}
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return (String.Equals(StsAuthority, otherKey.StsAuthority, StringComparison.InvariantCultureIgnoreCase)
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&& String.Equals(ServicePrincipalName, otherKey.ServicePrincipalName, StringComparison.InvariantCultureIgnoreCase));
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}
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/// <summary>
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/// Override the default GetHashCode implementation.
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/// </summary>
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/// <returns></returns>
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public override int GetHashCode() {
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return _hashCode;
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}
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/// <summary>
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/// Compute the hash code for this object.
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/// </summary>
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/// <returns></returns>
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private int ComputeHashCode() {
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int hashCode = 33;
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unchecked
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{
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hashCode = (hashCode * 17) + StsAuthority.GetHashCode();
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hashCode = (hashCode * 17) + ServicePrincipalName.GetHashCode();
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}
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return hashCode;
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}
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}
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}
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