108 lines
3.1 KiB
C#
108 lines
3.1 KiB
C#
//------------------------------------------------------------------------------
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// <copyright file="ConnectionPoolKey.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">[....]</owner>
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// <owner current="true" primary="false">[....]</owner>
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//------------------------------------------------------------------------------
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namespace System.Data.SqlClient
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{
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using System;
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using System.Collections;
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using System.Data.Common;
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using System.Diagnostics;
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// SqlConnectionPoolKey: Implementation of a key to connection pool groups for specifically to be used for SqlConnection
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// Connection string and SqlCredential are used as a key
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internal class SqlConnectionPoolKey : DbConnectionPoolKey, ICloneable
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{
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private SqlCredential _credential;
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private int _hashValue;
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private readonly string _accessToken;
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internal SqlConnectionPoolKey(string connectionString, SqlCredential credential, string accessToken) : base(connectionString)
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{
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Debug.Assert(_credential == null || _accessToken == null, "Credential and AccessToken can't have the value at the same time.");
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_credential = credential;
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_accessToken = accessToken;
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CalculateHashCode();
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}
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private SqlConnectionPoolKey(SqlConnectionPoolKey key) : base (key)
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{
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_credential = key.Credential;
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_accessToken = key.AccessToken;
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CalculateHashCode();
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}
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object ICloneable.Clone()
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{
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return new SqlConnectionPoolKey(this);
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}
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internal override string ConnectionString
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{
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get
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{
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return base.ConnectionString;
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}
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set
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{
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base.ConnectionString = value;
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CalculateHashCode();
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}
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}
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internal SqlCredential Credential
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{
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get
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{
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return _credential;
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}
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}
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internal string AccessToken
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{
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get
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{
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return _accessToken;
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}
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}
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public override bool Equals(object obj)
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{
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SqlConnectionPoolKey key = obj as SqlConnectionPoolKey;
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return (key != null && _credential == key._credential && ConnectionString == key.ConnectionString && Object.ReferenceEquals(_accessToken, key._accessToken));
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}
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public override int GetHashCode()
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{
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return _hashValue;
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}
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private void CalculateHashCode()
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{
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_hashValue = base.GetHashCode();
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if (_credential != null)
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{
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unchecked
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{
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_hashValue = _hashValue * 17 + _credential.GetHashCode();
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}
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}
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else if (_accessToken != null)
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{
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unchecked
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{
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_hashValue = _hashValue * 17 + _accessToken.GetHashCode();
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}
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}
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}
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}
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}
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