400 lines
13 KiB
C#
400 lines
13 KiB
C#
/*
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*
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* (c) Copyright Ascensio System Limited 2010-2018
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*
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* This program is freeware. You can redistribute it and/or modify it under the terms of the GNU
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* General Public License (GPL) version 3 as published by the Free Software Foundation (https://www.gnu.org/copyleft/gpl.html).
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* In accordance with Section 7(a) of the GNU GPL its Section 15 shall be amended to the effect that
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* Ascensio System SIA expressly excludes the warranty of non-infringement of any third-party rights.
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*
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* THIS PROGRAM IS DISTRIBUTED WITHOUT ANY WARRANTY; WITHOUT EVEN THE IMPLIED WARRANTY OF MERCHANTABILITY OR
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* FITNESS FOR A PARTICULAR PURPOSE. For more details, see GNU GPL at https://www.gnu.org/copyleft/gpl.html
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*
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* You can contact Ascensio System SIA by email at sales@onlyoffice.com
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*
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* The interactive user interfaces in modified source and object code versions of ONLYOFFICE must display
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* Appropriate Legal Notices, as required under Section 5 of the GNU GPL version 3.
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*
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* Pursuant to Section 7 § 3(b) of the GNU GPL you must retain the original ONLYOFFICE logo which contains
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* relevant author attributions when distributing the software. If the display of the logo in its graphic
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* form is not reasonably feasible for technical reasons, you must include the words "Powered by ONLYOFFICE"
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* in every copy of the program you distribute.
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* Pursuant to Section 7 § 3(e) we decline to grant you any rights under trademark law for use of our trademarks.
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*
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*/
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using System;
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using System.Collections.Generic;
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using System.Data;
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using System.Data.Common;
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using System.Threading.Tasks;
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using ASC.Common.Data.AdoProxy;
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using ASC.Common.Data.Sql;
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using ASC.Common.Logging;
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using ASC.Common.Web;
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namespace ASC.Common.Data
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{
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public class DbManager : IDbManager
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{
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private readonly ILog logger = LogManager.GetLogger("ASC.SQL");
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private readonly ProxyContext proxyContext;
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private readonly bool shared;
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private DbCommand command;
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private ISqlDialect dialect;
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private volatile bool disposed;
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private readonly int? commandTimeout;
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private DbCommand Command
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{
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get
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{
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CheckDispose();
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if (command == null)
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{
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command = OpenConnection().CreateCommand();
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}
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if (command.Connection.State == ConnectionState.Closed || command.Connection.State == ConnectionState.Broken)
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{
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command = OpenConnection().CreateCommand();
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}
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if (commandTimeout.HasValue)
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{
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command.CommandTimeout = commandTimeout.Value;
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}
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return command;
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}
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}
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public string DatabaseId { get; private set; }
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public bool InTransaction
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{
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get { return Command.Transaction != null; }
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}
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public DbConnection Connection
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{
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get { return Command.Connection; }
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}
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public DbManager(string databaseId, int? commandTimeout = null)
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: this(databaseId, true, commandTimeout)
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{
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}
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public DbManager(string databaseId, bool shared, int? commandTimeout = null)
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{
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DatabaseId = databaseId ?? throw new ArgumentNullException("databaseId");
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this.shared = shared;
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if (logger.IsDebugEnabled)
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{
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proxyContext = new ProxyContext(AdoProxyExecutedEventHandler);
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}
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if (commandTimeout.HasValue)
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{
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this.commandTimeout = commandTimeout;
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}
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}
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#region IDisposable Members
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public void Dispose()
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{
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lock (this)
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{
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if (disposed) return;
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disposed = true;
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if (command != null)
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{
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if (command.Connection != null) command.Connection.Dispose();
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command.Dispose();
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command = null;
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}
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}
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}
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#endregion
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public static IDbManager FromHttpContext(string databaseId)
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{
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if (HttpContext.Current != null)
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{
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if (!(DisposableHttpContext.Current[databaseId] is DbManager dbManager) || dbManager.disposed)
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{
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var localDbManager = new DbManager(databaseId);
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var dbManagerAdapter = new DbManagerProxy(localDbManager);
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DisposableHttpContext.Current[databaseId] = localDbManager;
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return dbManagerAdapter;
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}
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return new DbManagerProxy(dbManager);
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}
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return new DbManager(databaseId);
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}
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private DbConnection OpenConnection()
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{
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var connection = GetConnection();
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connection.Open();
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return connection;
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}
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private DbConnection GetConnection()
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{
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CheckDispose();
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string key = null;
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DbConnection connection;
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if (shared && HttpContext.Current != null)
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{
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key = string.Format("Connection {0}|{1}", GetDialect(), DbRegistry.GetConnectionString(DatabaseId));
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connection = DisposableHttpContext.Current[key] as DbConnection;
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if (connection != null)
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{
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var state = ConnectionState.Closed;
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var disposed = false;
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try
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{
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state = connection.State;
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}
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catch (ObjectDisposedException)
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{
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disposed = true;
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}
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if (!disposed && (state == ConnectionState.Closed || state == ConnectionState.Broken))
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{
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if (string.IsNullOrEmpty(connection.ConnectionString))
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{
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connection.ConnectionString = DbRegistry.GetConnectionString(DatabaseId).ConnectionString;
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}
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return connection;
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}
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}
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}
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connection = DbRegistry.CreateDbConnection(DatabaseId);
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if (proxyContext != null)
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{
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connection = new DbConnectionProxy(connection, proxyContext);
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}
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if (shared && HttpContext.Current != null) DisposableHttpContext.Current[key] = connection;
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return connection;
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}
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public IDbTransaction BeginTransaction()
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{
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if (InTransaction) throw new InvalidOperationException("Transaction already open.");
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Command.Transaction = Command.Connection.BeginTransaction();
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var tx = new DbTransaction(Command.Transaction);
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tx.Unavailable += TransactionUnavailable;
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return tx;
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}
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public IDbTransaction BeginTransaction(IsolationLevel il)
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{
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if (InTransaction) throw new InvalidOperationException("Transaction already open.");
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il = GetDialect().GetSupportedIsolationLevel(il);
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Command.Transaction = Command.Connection.BeginTransaction(il);
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var tx = new DbTransaction(Command.Transaction);
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tx.Unavailable += TransactionUnavailable;
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return tx;
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}
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public IDbTransaction BeginTransaction(bool nestedIfAlreadyOpen)
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{
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return nestedIfAlreadyOpen && InTransaction ? new DbNestedTransaction(Command.Transaction) : BeginTransaction();
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}
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public List<object[]> ExecuteList(string sql, params object[] parameters)
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{
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return Command.ExecuteList(sql, parameters);
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}
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public Task<List<object[]>> ExecuteListAsync(string sql, params object[] parameters)
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{
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return Command.ExecuteListAsync(sql, parameters);
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}
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public List<object[]> ExecuteList(ISqlInstruction sql)
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{
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return Command.ExecuteList(sql, GetDialect());
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}
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public Task<List<object[]>> ExecuteListAsync(ISqlInstruction sql)
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{
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return Command.ExecuteListAsync(sql, GetDialect());
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}
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public List<T> ExecuteList<T>(ISqlInstruction sql, Converter<IDataRecord, T> converter)
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{
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return Command.ExecuteList(sql, GetDialect(), converter);
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}
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public T ExecuteScalar<T>(string sql, params object[] parameters)
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{
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return Command.ExecuteScalar<T>(sql, parameters);
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}
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public T ExecuteScalar<T>(ISqlInstruction sql)
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{
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return Command.ExecuteScalar<T>(sql, GetDialect());
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}
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public int ExecuteNonQuery(string sql, params object[] parameters)
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{
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return Command.ExecuteNonQuery(sql, parameters);
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}
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public Task<int> ExecuteNonQueryAsync(string sql, params object[] parameters)
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{
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return Command.ExecuteNonQueryAsync(sql, parameters);
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}
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public int ExecuteNonQuery(ISqlInstruction sql)
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{
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return Command.ExecuteNonQuery(sql, GetDialect());
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}
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public int ExecuteBatch(IEnumerable<ISqlInstruction> batch)
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{
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if (batch == null) throw new ArgumentNullException("batch");
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var affected = 0;
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using (var tx = BeginTransaction())
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{
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foreach (var sql in batch)
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{
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affected += ExecuteNonQuery(sql);
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}
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tx.Commit();
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}
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return affected;
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}
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private void TransactionUnavailable(object sender, EventArgs e)
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{
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if (Command.Transaction != null)
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{
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Command.Transaction = null;
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}
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}
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private void CheckDispose()
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{
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if (disposed) throw new ObjectDisposedException(GetType().FullName);
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}
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private ISqlDialect GetDialect()
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{
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return dialect ?? (dialect = DbRegistry.GetSqlDialect(DatabaseId));
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}
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private void AdoProxyExecutedEventHandler(ExecutedEventArgs a)
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{
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logger.DebugWithProps(a.SqlMethod,
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new KeyValuePair<string, object>("duration", a.Duration.TotalMilliseconds),
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new KeyValuePair<string, object>("sql", RemoveWhiteSpaces(a.Sql)),
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new KeyValuePair<string, object>("sqlParams", RemoveWhiteSpaces(a.SqlParameters))
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);
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}
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private string RemoveWhiteSpaces(string str)
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{
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return !string.IsNullOrEmpty(str) ?
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str.Replace(Environment.NewLine, " ").Replace("\n", "").Replace("\r", "").Replace("\t", " ") :
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string.Empty;
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}
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}
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public class DbManagerProxy : IDbManager
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{
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private DbManager dbManager { get; set; }
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public DbManagerProxy(DbManager dbManager)
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{
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this.dbManager = dbManager;
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}
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public void Dispose()
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{
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if (HttpContext.Current == null)
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{
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dbManager.Dispose();
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}
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}
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public DbConnection Connection { get { return dbManager.Connection; } }
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public string DatabaseId { get { return dbManager.DatabaseId; } }
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public bool InTransaction { get { return dbManager.InTransaction; } }
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public IDbTransaction BeginTransaction()
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{
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return dbManager.BeginTransaction();
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}
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public IDbTransaction BeginTransaction(IsolationLevel isolationLevel)
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{
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return dbManager.BeginTransaction(isolationLevel);
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}
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public IDbTransaction BeginTransaction(bool nestedIfAlreadyOpen)
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{
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return dbManager.BeginTransaction(nestedIfAlreadyOpen);
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}
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public List<object[]> ExecuteList(string sql, params object[] parameters)
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{
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return dbManager.ExecuteList(sql, parameters);
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}
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public List<object[]> ExecuteList(ISqlInstruction sql)
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{
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return dbManager.ExecuteList(sql);
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}
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public Task<List<object[]>> ExecuteListAsync(ISqlInstruction sql)
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{
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return dbManager.ExecuteListAsync(sql);
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}
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public List<T> ExecuteList<T>(ISqlInstruction sql, Converter<IDataRecord, T> converter)
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{
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return dbManager.ExecuteList<T>(sql, converter);
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}
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public T ExecuteScalar<T>(string sql, params object[] parameters)
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{
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return dbManager.ExecuteScalar<T>(sql, parameters);
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}
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public T ExecuteScalar<T>(ISqlInstruction sql)
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{
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return dbManager.ExecuteScalar<T>(sql);
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}
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public int ExecuteNonQuery(string sql, params object[] parameters)
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{
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return dbManager.ExecuteNonQuery(sql, parameters);
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}
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public int ExecuteNonQuery(ISqlInstruction sql)
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{
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return dbManager.ExecuteNonQuery(sql);
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}
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public int ExecuteBatch(IEnumerable<ISqlInstruction> batch)
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{
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return dbManager.ExecuteBatch(batch);
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}
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}
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} |