Added server components.

ServerComponents/FileConverterUtils2/DocsChanges.cs

@@ -0,0 +1,137 @@
+/*
+ * (c) Copyright Ascensio System SIA 2010-2015
+ *
+ * This program is a free software product. You can redistribute it and/or 
+ * modify it under the terms of the GNU Affero General Public License (AGPL) 
+ * version 3 as published by the Free Software Foundation. In accordance with 
+ * Section 7(a) of the GNU AGPL its Section 15 shall be amended to the effect 
+ * that Ascensio System SIA expressly excludes the warranty of non-infringement
+ * of any third-party rights.
+ *
+ * This program is distributed WITHOUT ANY WARRANTY; without even the implied 
+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR  PURPOSE. For 
+ * details, see the GNU AGPL at: http://www.gnu.org/licenses/agpl-3.0.html
+ *
+ * You can contact Ascensio System SIA at Lubanas st. 125a-25, Riga, Latvia,
+ * EU, LV-1021.
+ *
+ * The  interactive user interfaces in modified source and object code versions
+ * of the Program must display Appropriate Legal Notices, as required under 
+ * Section 5 of the GNU AGPL version 3.
+ *
+ * Pursuant to Section 7(b) of the License you must retain the original Product
+ * logo when distributing the program. Pursuant to Section 7(e) we decline to
+ * grant you any rights under trademark law for use of our trademarks.
+ *
+ * All the Product's GUI elements, including illustrations and icon sets, as
+ * well as technical writing content are licensed under the terms of the
+ * Creative Commons Attribution-ShareAlike 4.0 International. See the License
+ * terms at http://creativecommons.org/licenses/by-sa/4.0/legalcode
+ *
+ */
+ using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Data;
+using System.Configuration;
+
+namespace FileConverterUtils2
+{
+    public class DocsChange
+    {
+        public string data;
+        public string userid;
+    }
+    public class DocsChanges
+    {
+        private delegate ErrorTypes DelegateRemove(string sKey);
+        private DelegateRemove m_oRemove = null;
+        public ErrorTypes GetChanges(string sKey, out List<DocsChange> aChanges)
+        {
+            aChanges = new List<DocsChange>();
+            ErrorTypes eErrorTypes = ErrorTypes.NoError;
+            try
+            {
+                using (IDbConnection sqlCon = GetDbConnection())
+                {
+                    sqlCon.Open();
+                    using (IDbCommand oSelCommand = sqlCon.CreateCommand())
+                    {
+                        oSelCommand.CommandText = GetSELECTString(sKey);
+                        using (IDataReader oReader = oSelCommand.ExecuteReader())
+                        {
+                            while (true == oReader.Read())
+                            {
+                                DocsChange oDocsChange = new DocsChange();
+                                oDocsChange.data = Convert.ToString(oReader["dc_data"]);
+                                oDocsChange.userid = Convert.ToString(oReader["dc_user_id_original"]);
+                                aChanges.Add(oDocsChange);
+                            }
+                        }
+                    }
+                }
+            }
+            catch
+            {
+                eErrorTypes = ErrorTypes.EditorChanges;
+            }
+            return eErrorTypes;
+        }
+        public ErrorTypes RemoveChanges(string sKey)
+        {
+            ErrorTypes eErrorTypes = ErrorTypes.NoError;
+            try
+            {
+                using (IDbConnection sqlCon = GetDbConnection())
+                {
+                    sqlCon.Open();
+                    using (IDbCommand oSelCommand = sqlCon.CreateCommand())
+                    {
+                        oSelCommand.CommandText = GetDELETEString(sKey);
+                        oSelCommand.ExecuteNonQuery();
+                    }
+                }
+            }
+            catch
+            {
+                eErrorTypes = ErrorTypes.EditorChanges;
+            }
+            return eErrorTypes;
+        }
+        public void RemoveChangesBegin(string sKey, AsyncCallback fCallback, object oParam)
+        {
+            m_oRemove = RemoveChanges;
+            m_oRemove.BeginInvoke(sKey, fCallback, oParam);
+        }
+        public ErrorTypes RemoveChangesEnd(IAsyncResult ar)
+        {
+            ErrorTypes eErrorTypes = ErrorTypes.NoError;
+            try
+            {
+                eErrorTypes = m_oRemove.EndInvoke(ar);
+            }
+            catch
+            {
+                eErrorTypes = ErrorTypes.TaskResult;
+            }
+            return eErrorTypes;
+        }
+        private IDbConnection GetDbConnection()
+        {
+            var cs = ConfigurationManager.ConnectionStrings[ConfigurationManager.AppSettings["utils.taskqueue.db.connectionstring"]];
+            var dbProvider = System.Data.Common.DbProviderFactories.GetFactory(cs.ProviderName);
+            var connection = dbProvider.CreateConnection();
+            connection.ConnectionString = cs.ConnectionString;
+            return connection;
+        }
+        private string GetSELECTString(string sKey)
+        {
+            return string.Format("SELECT * FROM doc_changes WHERE dc_key='{0}' ORDER BY dc_change_id ASC;", sKey);
+        }
+        private string GetDELETEString(string sKey)
+        {
+            return string.Format("DELETE FROM doc_changes WHERE dc_key='{0}';", sKey);
+        }
+    }
+}