mirror of
https://github.com/ckaczor/sqltoolsservice.git
synced 2026-01-14 09:59:48 -05:00
1511f73672
* fixed the issue with resources not disposed correctly * disposing language service at shutdown
1215 lines
40 KiB
C#
1215 lines
40 KiB
C#
//
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// Copyright (c) Microsoft. All rights reserved.
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// Licensed under the MIT license. See LICENSE file in the project root for full license information.
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//
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using System;
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using System.Collections;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Data;
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using System.Globalization;
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using System.IO;
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using System.Reflection;
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using System.Security;
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using System.Xml;
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using Microsoft.SqlServer.Management.Common;
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using Microsoft.SqlServer.Management.Diagnostics;
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using Microsoft.SqlServer.Management.Sdk.Sfc;
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using Microsoft.SqlServer.Management.Smo;
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using Assembly = System.Reflection.Assembly;
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using System.Xml.Linq;
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namespace Microsoft.SqlTools.ServiceLayer.Admin
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{
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/// <summary>
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/// CDataContainer
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/// </summary>
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public class CDataContainer : IDisposable
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{
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#region Nested types
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public enum ServerType
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{
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SQL,
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OLAP, //This type is used only for non-express sku
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SQLCE,
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UNKNOWN
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}
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#endregion
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#region Fields
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private ServerConnection serverConnection;
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private Server m_server = null;
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protected XmlDocument m_doc = null;
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private XmlDocument originalDocument = null;
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private SqlOlapConnectionInfoBase connectionInfo = null;
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private SqlConnectionInfoWithConnection sqlCiWithConnection;
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private bool ownConnection = true;
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private IManagedConnection managedConnection;
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protected string serverName;
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//This member is used for non-express sku only
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protected string olapServerName;
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protected string sqlceFilename;
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private ServerType serverType = ServerType.UNKNOWN;
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private Hashtable m_hashTable = null;
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private string objectNameKey = "object-name-9524b5c1-e996-4119-a433-b5b947985566";
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private string objectSchemaKey = "object-schema-ccaf2efe-8fa3-4f62-be79-62ef3cbe7390";
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private SqlSmoObject sqlDialogSubject = null;
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private int sqlServerVersion = 0;
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private int sqlServerEffectiveVersion = 0;
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#endregion
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#region Public properties
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/// <summary>
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/// gets/sets XmlDocument with parameters
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/// </summary>
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public XmlDocument Document
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{
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get
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{
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return this.m_doc;
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}
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set
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{
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this.m_doc = value;
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if (value != null)
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{
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//this.originalDocument = (XmlDocument) value.Clone();
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this.originalDocument = value;
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}
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else
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{
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this.originalDocument = null;
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}
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}
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}
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/// <summary>
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/// returns the Hashtable that can be used to store generic information
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/// </summary>
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public Hashtable HashTable
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{
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get
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{
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if (m_hashTable == null)
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{
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m_hashTable = new Hashtable();
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}
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return m_hashTable;
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}
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}
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/// <summary>
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/// gets/sets SMO server object
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/// </summary>
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public Server Server
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{
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get
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{
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return m_server;
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}
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set
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{
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m_server = value;
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}
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}
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/// <summary>
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/// connection info that should be used by the dialogs
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/// </summary>
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public SqlOlapConnectionInfoBase ConnectionInfo
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{
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get
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{
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//// update the database name in the serverconnection object to set the correct database context when connected to Azure
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//var conn = this.connectionInfo as SqlConnectionInfoWithConnection;
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//if (conn != null && conn.ServerConnection.DatabaseEngineType == DatabaseEngineType.SqlAzureDatabase)
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//{
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// if (this.RelevantDatabaseName != null)
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// {
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// IComparer<string> dbNamesComparer = ServerConnection.ConnectionFactory.GetInstance(conn.ServerConnection).ServerComparer as IComparer<string>;
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// if (dbNamesComparer.Compare(this.RelevantDatabaseName, conn.DatabaseName) != 0)
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// {
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// ServerConnection serverConnection = conn.ServerConnection.GetDatabaseConnection(this.RelevantDatabaseName, true, conn.AccessToken);
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// ((SqlConnectionInfoWithConnection)this.connectionInfo).ServerConnection = serverConnection;
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// }
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// }
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//}
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return this.connectionInfo;
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}
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}
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/// <summary>
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/// returns SMO server connection object constructed off the connectionInfo.
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/// This method cannot work until ConnectionInfo property has been set
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/// </summary>
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public ServerConnection ServerConnection
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{
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get
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{
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if (this.serverConnection == null)
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{
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if (this.serverType != ServerType.SQL)
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{
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throw new InvalidOperationException();
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}
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if (this.connectionInfo == null)
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{
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throw new InvalidOperationException();
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}
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if (this.sqlCiWithConnection != null)
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{
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this.serverConnection = this.sqlCiWithConnection.ServerConnection;
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}
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else
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{
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SqlConnectionInfo sci = this.connectionInfo as SqlConnectionInfo;
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this.serverConnection = new ServerConnection(sci);
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}
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}
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return this.serverConnection;
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}
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}
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/// <summary>
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/// returns SMO server connection object constructed off the connectionInfo.
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/// This method cannot work until ConnectionInfo property has been set
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/// </summary>
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public SqlConnectionInfoWithConnection SqlInfoWithConnection
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{
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get
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{
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if (this.serverConnection == null)
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{
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if (this.serverType != ServerType.SQL)
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{
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throw new InvalidOperationException();
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}
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if (this.connectionInfo == null)
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{
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throw new InvalidOperationException();
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}
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if (this.sqlCiWithConnection != null)
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{
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this.serverConnection = this.sqlCiWithConnection.ServerConnection;
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}
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else
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{
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SqlConnectionInfo sci = this.connectionInfo as SqlConnectionInfo;
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this.serverConnection = new ServerConnection(sci);
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}
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}
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return this.sqlCiWithConnection;
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}
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}
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public string ServerName
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{
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get
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{
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return this.serverName;
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}
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set
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{
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this.serverName = value;
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}
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}
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public ServerType ContainerServerType
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{
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get
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{
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return this.serverType;
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}
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set
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{
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this.serverType = value;
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}
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}
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public string SqlCeFileName
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{
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get
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{
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return this.sqlceFilename;
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}
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set
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{
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this.sqlceFilename = value;
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}
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}
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//This member is used for non-express sku only
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public string OlapServerName
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{
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get
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{
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return this.olapServerName;
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}
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set
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{
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this.olapServerName = value;
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}
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}
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/// <summary>
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/// Whether we are creating a new object
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/// </summary>
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public bool IsNewObject
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{
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get
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{
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string itemType = this.GetDocumentPropertyString("itemtype");
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return (itemType.Length != 0);
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}
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}
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/// <summary>
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/// The URN to the parent of the object we are creating/modifying
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/// </summary>
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public string ParentUrn
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{
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get
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{
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string result = String.Empty;
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string documentUrn = this.GetDocumentPropertyString("urn");
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if (this.IsNewObject)
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{
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result = documentUrn;
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}
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else
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{
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Urn urn = new Urn(documentUrn);
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result = urn.Parent.ToString();
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}
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return result;
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}
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}
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/// <summary>
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/// The URN to the object we are creating/modifying
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/// </summary>
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public string ObjectUrn
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{
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get
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{
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string result = String.Empty;
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if (this.IsNewObject)
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{
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string objectName = this.ObjectName;
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string objectSchema = this.ObjectSchema;
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if (0 == objectName.Length)
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{
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throw new InvalidOperationException("object name is not known, so URN for object can't be formed");
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}
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if (0 == objectSchema.Length)
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{
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result = String.Format(CultureInfo.InvariantCulture,
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"{0}/{1}[@Name='{2}']",
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this.ParentUrn,
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this.ObjectType,
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Urn.EscapeString(objectName));
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}
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else
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{
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result = String.Format(CultureInfo.InvariantCulture,
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"{0}/{1}[@Schema='{2}' and @Name='{3}']",
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this.ParentUrn,
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this.ObjectType,
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Urn.EscapeString(objectSchema),
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Urn.EscapeString(objectName));
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}
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}
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else
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{
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result = this.GetDocumentPropertyString("urn");
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}
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return result;
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}
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}
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/// <summary>
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/// The name of the object we are modifying
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/// </summary>
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public string ObjectName
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{
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get
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{
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return this.GetDocumentPropertyString(objectNameKey);
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}
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set
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{
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this.SetDocumentPropertyValue(objectNameKey, value);
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}
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}
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/// <summary>
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/// The schema of the object we are modifying
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/// </summary>
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public string ObjectSchema
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{
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get
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{
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return this.GetDocumentPropertyString(objectSchemaKey);
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}
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set
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{
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this.SetDocumentPropertyValue(objectSchemaKey, value);
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}
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}
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/// <summary>
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/// The type of the object we are creating (as it appears in URNs)
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/// </summary>
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public string ObjectType
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{
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get
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{
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// note that the itemtype property is only set for new objects
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string result = String.Empty;
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string itemtype = this.GetDocumentPropertyString("itemtype");
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// if this is not a new object
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if (0 == itemtype.Length)
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{
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string documentUrn = this.GetDocumentPropertyString("urn");
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Urn urn = new Urn(documentUrn);
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result = urn.Type;
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}
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else
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{
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result = itemtype;
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}
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return result;
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}
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}
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/// <summary>
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/// The SQL SMO object that is the subject of the dialog.
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/// </summary>
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public SqlSmoObject SqlDialogSubject
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{
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get
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{
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SqlSmoObject result = null;
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if (this.sqlDialogSubject != null)
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{
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result = this.sqlDialogSubject;
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}
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else
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{
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result = this.Server.GetSmoObject(this.ObjectUrn);
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}
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return result;
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}
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set
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{
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this.sqlDialogSubject = value;
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}
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}
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/// <summary>
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/// Whether the logged in user is a system administrator
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/// </summary>
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public bool LoggedInUserIsSysadmin
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{
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get
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{
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bool result = false;
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if (this.Server != null && this.Server.ConnectionContext != null)
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{
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result = this.Server.ConnectionContext.IsInFixedServerRole(FixedServerRoles.SysAdmin);
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}
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return result;
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}
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}
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/// <summary>
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/// Get the name of the Database that contains (or is) the subject of the dialog.
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/// If no there is no relevant database, then an empty string is returned.
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/// </summary>
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public string RelevantDatabaseName
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{
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get
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{
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string result = String.Empty;
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string urnText = this.GetDocumentPropertyString("urn");
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if (urnText.Length != 0)
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{
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Urn urn = new Urn(urnText);
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while ((urn != null) && (urn.Type != "Database"))
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{
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urn = urn.Parent;
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}
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if ((urn != null) && (urn.Type == "Database"))
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{
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result = urn.GetAttribute("Name");
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}
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}
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return result;
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}
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}
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/// <summary>
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/// The server major version number
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/// </summary>
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public int SqlServerVersion
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{
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get
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{
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if (this.sqlServerVersion == 0)
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{
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this.sqlServerVersion = 9;
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if ((this.ConnectionInfo != null) && (ServerType.SQL == this.ContainerServerType))
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{
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Enumerator enumerator = new Enumerator();
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Urn urn = "Server/Information";
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string[] fields = new string[] { "VersionMajor" };
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DataTable dataTable = enumerator.Process(this.ConnectionInfo, new Request(urn, fields));
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if (dataTable.Rows.Count != 0)
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{
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this.sqlServerVersion = (int)dataTable.Rows[0][0];
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}
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}
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}
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return this.sqlServerVersion;
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}
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}
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/// <summary>
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/// The server version the database is emulating. If database compatibility level is
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/// not relevant to the subject, then this just returns the actual server version.
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/// </summary>
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public int EffectiveSqlServerVersion
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{
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get
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{
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if (this.sqlServerEffectiveVersion == 0)
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{
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this.sqlServerEffectiveVersion = 9;
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if ((this.ConnectionInfo != null) && (ServerType.SQL == this.ContainerServerType))
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{
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string databaseName = this.RelevantDatabaseName;
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if (databaseName.Length != 0)
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{
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Enumerator enumerator = new Enumerator();
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Urn urn = String.Format("Server/Database[@Name='{0}']", Urn.EscapeString(databaseName));
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string[] fields = new string[] { "CompatibilityLevel" };
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DataTable dataTable = enumerator.Process(this.ConnectionInfo, new Request(urn, fields));
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if (dataTable.Rows.Count != 0)
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{
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CompatibilityLevel level = (CompatibilityLevel)dataTable.Rows[0][0];
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switch (level)
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{
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case CompatibilityLevel.Version60:
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case CompatibilityLevel.Version65:
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this.sqlServerEffectiveVersion = 6;
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break;
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case CompatibilityLevel.Version70:
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this.sqlServerEffectiveVersion = 7;
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break;
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case CompatibilityLevel.Version80:
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this.sqlServerEffectiveVersion = 8;
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break;
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case CompatibilityLevel.Version90:
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this.sqlServerEffectiveVersion = 9;
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break;
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case CompatibilityLevel.Version100:
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this.sqlServerEffectiveVersion = 10;
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break;
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case CompatibilityLevel.Version110:
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this.sqlServerEffectiveVersion = 11;
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break;
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case CompatibilityLevel.Version120:
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this.sqlServerEffectiveVersion = 12;
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break;
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case CompatibilityLevel.Version130:
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this.sqlServerEffectiveVersion = 13;
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break;
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case CompatibilityLevel.Version140:
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this.sqlServerEffectiveVersion = 14;
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break;
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default:
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this.sqlServerEffectiveVersion = 14;
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break;
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}
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}
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else
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{
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this.sqlServerEffectiveVersion = this.SqlServerVersion;
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}
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}
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else
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{
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this.sqlServerEffectiveVersion = this.SqlServerVersion;
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}
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}
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}
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return this.sqlServerEffectiveVersion;
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}
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}
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|
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#endregion
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|
|
#region Constructors, finalizer
|
|
|
|
public CDataContainer()
|
|
{
|
|
}
|
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|
|
/// <summary>
|
|
/// contructs the object and initializes its SQL ConnectionInfo and ServerConnection properties
|
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/// using the specified connection info containing live connection.
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/// </summary>
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/// <param name="ciObj">connection info containing live connection</param>
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public CDataContainer(object ciObj, bool ownConnection)
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{
|
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SqlConnectionInfoWithConnection ci = (SqlConnectionInfoWithConnection)ciObj;
|
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if (ci == null)
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{
|
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throw new ArgumentNullException("ci");
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}
|
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ApplyConnectionInfo(ci, ownConnection);
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}
|
|
|
|
/// <summary>
|
|
/// contructs the object and initializes its SQL ConnectionInfo and ServerConnection properties
|
|
/// using the specified connection info containing live connection.
|
|
///
|
|
/// in addition creates a server of the given server type
|
|
/// </summary>
|
|
/// <param name="ci">connection info containing live connection</param>
|
|
public CDataContainer(ServerType serverType, object ciObj, bool ownConnection)
|
|
{
|
|
SqlConnectionInfoWithConnection ci = (SqlConnectionInfoWithConnection)ciObj;
|
|
if (ci == null)
|
|
{
|
|
throw new ArgumentNullException("ci");
|
|
}
|
|
|
|
this.serverType = serverType;
|
|
ApplyConnectionInfo(ci, ownConnection);
|
|
|
|
if (serverType == ServerType.SQL)
|
|
{
|
|
//NOTE: ServerConnection property will constuct the object if needed
|
|
m_server = new Server(ServerConnection);
|
|
}
|
|
else
|
|
{
|
|
throw new ArgumentException("SRError.UnknownServerType(serverType.ToString()), serverType");
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Constructor
|
|
/// </summary>
|
|
/// <param name="serverType">Server type</param>
|
|
/// <param name="serverName">Server name</param>
|
|
/// <param name="trusted">true if connection is trused. If true user name and password are ignored</param>
|
|
/// <param name="userName">User name for not trusted connections</param>
|
|
/// <param name="password">Password for not trusted connections</param>
|
|
/// <param name="xmlParameters">XML string with parameters</param>
|
|
public CDataContainer(ServerType serverType, string serverName, bool trusted, string userName, SecureString password, string xmlParameters)
|
|
{
|
|
this.serverType = serverType;
|
|
this.serverName = serverName;
|
|
|
|
if (serverType == ServerType.SQL)
|
|
{
|
|
//does some extra initialization
|
|
ApplyConnectionInfo(GetTempSqlConnectionInfoWithConnection(serverName, trusted, userName, password), true);
|
|
|
|
//NOTE: ServerConnection property will constuct the object if needed
|
|
m_server = new Server(ServerConnection);
|
|
}
|
|
else
|
|
{
|
|
throw new ArgumentException("SRError.UnknownServerType(serverType.ToString()), serverType");
|
|
}
|
|
|
|
if (xmlParameters != null)
|
|
{
|
|
this.Document = GenerateXmlDocumentFromString(xmlParameters);
|
|
}
|
|
|
|
if (ServerType.SQL == serverType)
|
|
{
|
|
this.InitializeObjectNameAndSchema();
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
///
|
|
/// </summary>
|
|
/// <param name="dataContainer">Data container</param>
|
|
/// <param name="xmlParameters">XML string with parameters</param>
|
|
public CDataContainer(CDataContainer dataContainer, string xmlParameters)
|
|
{
|
|
Server = dataContainer.Server;
|
|
this.serverName = dataContainer.serverName;
|
|
this.serverType = dataContainer.serverType;
|
|
this.connectionInfo = dataContainer.connectionInfo;
|
|
this.ownConnection = dataContainer.ownConnection;
|
|
|
|
this.sqlCiWithConnection = dataContainer.connectionInfo as SqlConnectionInfoWithConnection;
|
|
if (this.sqlCiWithConnection != null)
|
|
{
|
|
//we want to be notified if it is closed
|
|
this.sqlCiWithConnection.ConnectionClosed += new EventHandler(OnSqlConnectionClosed);
|
|
}
|
|
|
|
if (xmlParameters != null)
|
|
{
|
|
XmlDocument doc = GenerateXmlDocumentFromString(xmlParameters);
|
|
this.Init(doc);
|
|
}
|
|
}
|
|
|
|
~CDataContainer()
|
|
{
|
|
Dispose(false);
|
|
}
|
|
|
|
#endregion
|
|
|
|
#region Public virtual methods
|
|
|
|
/// <summary>
|
|
/// Initialization routine that is a convience fuction for clients with the data in a string
|
|
/// </summary>
|
|
/// <param name="xmlText">The string that contains the xml data</param>
|
|
public virtual void Init(string xmlText)
|
|
{
|
|
XmlDocument xmlDoc = GenerateXmlDocumentFromString(xmlText);
|
|
|
|
this.Init(xmlDoc);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Overload of basic Init which takes a IServiceProvider and initializes
|
|
/// what it can of the container with elements provided by IServcieProvider
|
|
///
|
|
/// Today this is only the IManagedProvider if available but this function
|
|
/// could be modified to init other things provided by the ServiceProvider
|
|
/// </summary>
|
|
/// <param name="doc"></param>
|
|
/// <param name="site"></param>
|
|
public virtual void Init(XmlDocument doc, IServiceProvider site)
|
|
{
|
|
|
|
if (site != null)
|
|
{
|
|
//see if service provider supports INodeInformation interface from the object explorer
|
|
try
|
|
{
|
|
//NOTE: we're trying to forcefully set connection information on the data container.
|
|
//If this code doesn't execute, then dc.Init call below will result in CDataContainer
|
|
//initializing its ConnectionInfo member with a new object contructed off the parameters
|
|
//in the XML doc [server name, user name etc]
|
|
IManagedConnection managedConnection = site.GetService(typeof(IManagedConnection)) as IManagedConnection;
|
|
if (managedConnection != null)
|
|
{
|
|
this.SetManagedConnection(managedConnection);
|
|
}
|
|
}
|
|
catch (Exception ex)
|
|
{
|
|
// keep the exception flowing
|
|
throw ex;
|
|
}
|
|
}
|
|
|
|
this.Document = doc;
|
|
LoadData();
|
|
|
|
// finish the initialization
|
|
this.Init(doc);
|
|
}
|
|
|
|
|
|
/// <summary>
|
|
/// main initialization method - the object is unusable until this method is called
|
|
/// NOTE: it will ensure the ConnectionInfo and ServerConnetion objects are constructed
|
|
/// for the appropriate server types
|
|
/// </summary>
|
|
/// <param name="doc"></param>
|
|
public virtual void Init(XmlDocument doc)
|
|
{
|
|
//First, we read the data from XML by calling LoadData
|
|
this.Document = doc;
|
|
|
|
LoadData();
|
|
|
|
//Second, create the rignt server and connection objects
|
|
if (this.serverType == ServerType.SQL)
|
|
{
|
|
//ensure that we have a valid ConnectionInfo
|
|
if (ConnectionInfo == null)
|
|
{
|
|
throw new InvalidOperationException();
|
|
}
|
|
|
|
if (m_server == null)
|
|
{
|
|
//NOTE: ServerConnection property will constuct the object if needed
|
|
m_server = new Server(ServerConnection);
|
|
}
|
|
}
|
|
else if (this.serverType == ServerType.SQLCE)
|
|
{
|
|
// do nothing; originally we were only distinguishing between two
|
|
// types of servers (OLAP/SQL); as a result for SQLCE we were
|
|
// executing the same codepath as for OLAP server which was
|
|
// resulting in an exception;
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// loads data into internal members from the XML document and detects the server type
|
|
/// [SQL, OLAP etc] based on the info in the XML doc
|
|
/// </summary>
|
|
public virtual void LoadData()
|
|
{
|
|
STParameters param;
|
|
bool bStatus;
|
|
|
|
param = new STParameters();
|
|
|
|
param.SetDocument(m_doc);
|
|
|
|
// DEVNOTE: chrisze 02/25/03
|
|
// This is an ugly way to distinguish between different server types
|
|
// Maybe we should pass server type as one of the parameters?
|
|
//
|
|
bStatus = param.GetParam("servername", ref this.serverName);
|
|
|
|
if (!bStatus || this.serverName.Length == 0)
|
|
{
|
|
|
|
{
|
|
bStatus = param.GetParam("database", ref this.sqlceFilename);
|
|
|
|
if (bStatus && !String.IsNullOrEmpty(this.sqlceFilename))
|
|
{
|
|
this.serverType = ServerType.SQLCE;
|
|
}
|
|
else if (this.sqlCiWithConnection != null)
|
|
{
|
|
this.serverType = ServerType.SQL;
|
|
}
|
|
else
|
|
{
|
|
this.serverType = ServerType.UNKNOWN;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
//OK, let's see if <servertype> was specified in the parameters. It it was, use
|
|
//it to double check that it is SQL
|
|
string specifiedServerType = "";
|
|
bStatus = param.GetParam("servertype", ref specifiedServerType);
|
|
if (bStatus)
|
|
{
|
|
if (specifiedServerType != null && "sql" != specifiedServerType.ToLowerInvariant())
|
|
{
|
|
this.serverType = ServerType.UNKNOWN;//we know only about 3 types, and 2 of them were excluded by if branch above
|
|
}
|
|
else
|
|
{
|
|
this.serverType = ServerType.SQL;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
this.serverType = ServerType.SQL;
|
|
}
|
|
}
|
|
|
|
// Ensure there is no password in the XML document
|
|
string temp = String.Empty;
|
|
if (param.GetParam("password", ref temp))
|
|
{
|
|
temp = null;
|
|
throw new SecurityException();
|
|
}
|
|
|
|
if (ServerType.SQL == this.serverType)
|
|
{
|
|
this.InitializeObjectNameAndSchema();
|
|
}
|
|
}
|
|
|
|
#endregion
|
|
|
|
#region Public methods
|
|
|
|
/// <summary>
|
|
/// we need to store it as context from the OE
|
|
/// </summary>
|
|
/// <param name="managedConnection"></param>
|
|
internal void SetManagedConnection(IManagedConnection managedConnection)
|
|
{
|
|
this.managedConnection = managedConnection;
|
|
|
|
ApplyConnectionInfo(managedConnection.Connection, true);//it will do some extra initialization
|
|
}
|
|
|
|
/// <summary>
|
|
/// Get the named property value from the XML document
|
|
/// </summary>
|
|
/// <param name="propertyName">The name of the property to get</param>
|
|
/// <returns>The property value</returns>
|
|
public object GetDocumentPropertyValue(string propertyName)
|
|
{
|
|
object result = null;
|
|
STParameters param = new STParameters(this.Document);
|
|
|
|
param.GetBaseParam(propertyName, ref result);
|
|
|
|
return result;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Get the named property value from the XML document
|
|
/// </summary>
|
|
/// <param name="propertyName">The name of the property to get</param>
|
|
/// <returns>The property value</returns>
|
|
public string GetDocumentPropertyString(string propertyName)
|
|
{
|
|
object result = GetDocumentPropertyValue(propertyName);
|
|
if (result == null)
|
|
{
|
|
result = String.Empty;
|
|
}
|
|
|
|
return (string)result;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Set the named property value in the XML document
|
|
/// </summary>
|
|
/// <param name="propertyName">The name of the property to set</param>
|
|
/// <param name="propertyValue">The property value</param>
|
|
public void SetDocumentPropertyValue(string propertyName, string propertyValue)
|
|
{
|
|
STParameters param = new STParameters(this.Document);
|
|
|
|
param.SetParam(propertyName, propertyValue);
|
|
}
|
|
|
|
#endregion
|
|
|
|
#region internal methods
|
|
|
|
/// <summary>
|
|
/// Reset the data container to its state from just after it was last initialized or reset
|
|
/// </summary>
|
|
internal void Reset()
|
|
{
|
|
if (this.originalDocument != null)
|
|
{
|
|
this.Init(this.originalDocument);
|
|
}
|
|
|
|
if (this.m_hashTable != null)
|
|
{
|
|
this.m_hashTable = new Hashtable();
|
|
}
|
|
}
|
|
|
|
|
|
#endregion
|
|
|
|
#region Private helpers
|
|
|
|
/// <summary>
|
|
/// Get the name and schema (if applicable) for the object we are referring to
|
|
/// </summary>
|
|
private void InitializeObjectNameAndSchema()
|
|
{
|
|
string documentUrn = this.GetDocumentPropertyString("urn");
|
|
|
|
if (documentUrn.Length != 0)
|
|
{
|
|
Urn urn = new Urn(documentUrn);
|
|
string name = urn.GetAttribute("Name");
|
|
string schema = urn.GetAttribute("Schema");
|
|
|
|
if ((name != null) && (name.Length != 0))
|
|
{
|
|
this.ObjectName = name;
|
|
}
|
|
|
|
if ((schema != null) && (schema.Length != 0))
|
|
{
|
|
this.ObjectSchema = schema;
|
|
}
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// returns SqlConnectionInfoWithConnection object constructed using our internal vars
|
|
/// </summary>
|
|
/// <returns></returns>
|
|
private SqlConnectionInfoWithConnection GetTempSqlConnectionInfoWithConnection(
|
|
string serverName,
|
|
bool trusted,
|
|
string userName,
|
|
SecureString password)
|
|
{
|
|
SqlConnectionInfoWithConnection tempCI = new SqlConnectionInfoWithConnection(serverName);
|
|
tempCI.SingleConnection = false;
|
|
tempCI.Pooled = false;
|
|
//BUGBUG - set the right application name?
|
|
if (trusted)
|
|
{
|
|
tempCI.UseIntegratedSecurity = true;
|
|
}
|
|
else
|
|
{
|
|
tempCI.UseIntegratedSecurity = false;
|
|
tempCI.UserName = userName;
|
|
tempCI.SecurePassword = password;
|
|
}
|
|
|
|
return tempCI;
|
|
}
|
|
|
|
|
|
/// <summary>
|
|
/// our handler of sqlCiWithConnection.ConnectionClosed
|
|
/// </summary>
|
|
/// <param name="sender"></param>
|
|
/// <param name="e"></param>
|
|
private void OnSqlConnectionClosed(object sender, EventArgs e)
|
|
{
|
|
//nothing - per MRaheem we'll let user deal with this situation
|
|
}
|
|
|
|
/// <summary>
|
|
/// stores specified connection info and performs some extra initialization steps
|
|
/// that can only be done after we have the connection information
|
|
/// </summary>
|
|
/// <param name="ci"></param>
|
|
private void ApplyConnectionInfo(SqlOlapConnectionInfoBase ci, bool ownConnection)
|
|
{
|
|
|
|
this.connectionInfo = ci;
|
|
this.ownConnection = ownConnection;
|
|
|
|
//cache the cast value. It is OK that it is null for non SQL types
|
|
this.sqlCiWithConnection = ci as SqlConnectionInfoWithConnection;
|
|
|
|
if (this.sqlCiWithConnection != null)
|
|
{
|
|
//we want to be notified if it is closed
|
|
this.sqlCiWithConnection.ConnectionClosed += new EventHandler(OnSqlConnectionClosed);
|
|
}
|
|
}
|
|
|
|
private static bool MustRethrow(Exception exception)
|
|
{
|
|
bool result = false;
|
|
|
|
switch (exception.GetType().Name)
|
|
{
|
|
case "ExecutionEngineException":
|
|
case "OutOfMemoryException":
|
|
case "AccessViolationException":
|
|
case "BadImageFormatException":
|
|
case "InvalidProgramException":
|
|
|
|
result = true;
|
|
break;
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Generates an XmlDocument from a string, avoiding exploits available through
|
|
/// DTDs
|
|
/// </summary>
|
|
/// <param name="sourceXml"></param>
|
|
/// <returns></returns>
|
|
private XmlDocument GenerateXmlDocumentFromString(string sourceXml)
|
|
{
|
|
if (sourceXml == null)
|
|
{
|
|
throw new ArgumentNullException("sourceXml");
|
|
}
|
|
if (sourceXml.Length == 0)
|
|
{
|
|
throw new ArgumentException("sourceXml");
|
|
}
|
|
|
|
using (MemoryStream memoryStream = new MemoryStream())
|
|
{
|
|
using (StreamWriter streamWriter = new StreamWriter(memoryStream))
|
|
{
|
|
// Writes the xml to the memory stream
|
|
streamWriter.Write(sourceXml);
|
|
streamWriter.Flush();
|
|
|
|
// Resets the stream to the beginning
|
|
memoryStream.Seek(0, SeekOrigin.Begin);
|
|
|
|
// Creates the XML reader from the stream
|
|
// and moves it to the correct node
|
|
XmlReader xmlReader = XmlReader.Create(memoryStream);
|
|
xmlReader.MoveToContent();
|
|
|
|
// generate the xml document
|
|
XmlDocument xmlDocument = new XmlDocument();
|
|
xmlDocument.PreserveWhitespace = true;
|
|
xmlDocument.LoadXml(xmlReader.ReadOuterXml());
|
|
|
|
return xmlDocument;
|
|
}
|
|
}
|
|
}
|
|
|
|
#endregion
|
|
|
|
#region IDisposable
|
|
|
|
public void Dispose()
|
|
{
|
|
Dispose(true);
|
|
GC.SuppressFinalize(this);
|
|
}
|
|
|
|
/// <summary>
|
|
/// MUST be called, as we'll be closing SQL connection inside this call
|
|
/// </summary>
|
|
private void Dispose(bool disposing)
|
|
{
|
|
try
|
|
{
|
|
//take care of live SQL connection
|
|
if (this.sqlCiWithConnection != null)
|
|
{
|
|
this.sqlCiWithConnection.ConnectionClosed -= new EventHandler(OnSqlConnectionClosed);
|
|
|
|
if (disposing)
|
|
{
|
|
//if we have the managed connection interface, then use it to disconnect.
|
|
//Otherwise, Dispose on SqlConnectionInfoWithConnection should disconnect
|
|
if (this.managedConnection != null)
|
|
{
|
|
//in this case we have gotten sqlCiWithConnection as this.managedConnection.Connection
|
|
if (this.ownConnection)
|
|
{
|
|
this.managedConnection.Close();
|
|
}
|
|
this.managedConnection = null;
|
|
}
|
|
else
|
|
{
|
|
if (this.ownConnection)
|
|
{
|
|
this.sqlCiWithConnection.Dispose();//internally will decide whether to disconnect or not
|
|
}
|
|
}
|
|
this.sqlCiWithConnection = null;
|
|
}
|
|
else
|
|
{
|
|
this.managedConnection = null;
|
|
this.sqlCiWithConnection = null;
|
|
}
|
|
}
|
|
else if (this.managedConnection != null)
|
|
{
|
|
if (disposing && this.ownConnection)
|
|
{
|
|
this.managedConnection.Close();
|
|
}
|
|
this.managedConnection = null;
|
|
}
|
|
}
|
|
catch (Exception)
|
|
{
|
|
}
|
|
}
|
|
|
|
#endregion
|
|
}
|
|
}
|