rename SQLiteNG to SQLite and SQLite to SQLiteLegacy this seems the least evil way forward since mono 2.6 and later will see increasing usage, and this only works with what was

SQLiteNG MAC USERS WILL NEED TO CHANGE REFERENCES TO "OpenSim.Data.SQLite.dll" to "OpenSim.Data.SQLiteLegacy.dll" in OpenSim.ini and config-include/StandaloneCommon.ini (if
using standalone) See the OpenSim.ini.example and StandaloneCommon.ini.example files for more details This commit also temporarily changes unsigned ParentEstateID values in the
OpenSim.Data.Tests to signed temporarily, since the new plugin enforces creation of signed fields in the database (which is what the SQL actually specifies).  And change data
columns in sqlite is a pita.

1 files changed, 268 insertions, 0 deletions

diff --git a/OpenSim/Data/SQLiteLegacy/SQLiteGenericTableHandler.cs b/OpenSim/Data/SQLiteLegacy/SQLiteGenericTableHandler.cs
new file mode 100644
index 0000000..1c1fe8c
--- /dev/null
+++ b/OpenSim/Data/SQLiteLegacy/SQLiteGenericTableHandler.cs
@@ -0,0 +1,268 @@
+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSimulator Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+using System;
+using System.Collections.Generic;
+using System.Data;
+using System.Reflection;
+using log4net;
+using Mono.Data.SqliteClient;
+using OpenMetaverse;
+using OpenSim.Framework;
+using OpenSim.Region.Framework.Interfaces;
+
+namespace OpenSim.Data.SQLiteLegacy
+{
+    public class SQLiteGenericTableHandler<T> : SQLiteFramework where T: class, new()
+    {
+//        private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
+
+        protected Dictionary<string, FieldInfo> m_Fields =
+                new Dictionary<string, FieldInfo>();
+
+        protected List<string> m_ColumnNames = null;
+        protected string m_Realm;
+        protected FieldInfo m_DataField = null;
+
+        protected static SqliteConnection m_Connection;
+        private static bool m_initialized;
+
+        public SQLiteGenericTableHandler(string connectionString,
+                string realm, string storeName) : base(connectionString)
+        {
+            m_Realm = realm;
+
+            if (!m_initialized)
+            {
+                m_Connection = new SqliteConnection(connectionString);
+                m_Connection.Open();
+
+                if (storeName != String.Empty)
+                {
+                    Assembly assem = GetType().Assembly;
+                    SqliteConnection newConnection =
+                            (SqliteConnection)((ICloneable)m_Connection).Clone();
+                    newConnection.Open();
+
+                    Migration m = new Migration(newConnection, assem, storeName);
+                    m.Update();
+                    newConnection.Close();
+                    newConnection.Dispose();
+                }
+
+                m_initialized = true;
+            }
+
+            Type t = typeof(T);
+            FieldInfo[] fields = t.GetFields(BindingFlags.Public |
+                                             BindingFlags.Instance |
+                                             BindingFlags.DeclaredOnly);
+
+            if (fields.Length == 0)
+                return;
+
+            foreach (FieldInfo f in  fields)
+            {
+                if (f.Name != "Data")
+                    m_Fields[f.Name] = f;
+                else
+                    m_DataField = f;
+            }
+        }
+
+        private void CheckColumnNames(IDataReader reader)
+        {
+            if (m_ColumnNames != null)
+                return;
+
+            m_ColumnNames = new List<string>();
+
+            DataTable schemaTable = reader.GetSchemaTable();
+            foreach (DataRow row in schemaTable.Rows)
+            {
+                if (row["ColumnName"] != null &&
+                        (!m_Fields.ContainsKey(row["ColumnName"].ToString())))
+                    m_ColumnNames.Add(row["ColumnName"].ToString());
+            }
+        }
+
+        public T[] Get(string field, string key)
+        {
+            return Get(new string[] { field }, new string[] { key });
+        }
+
+        public T[] Get(string[] fields, string[] keys)
+        {
+            if (fields.Length != keys.Length)
+                return new T[0];
+
+            List<string> terms = new List<string>();
+
+            SqliteCommand cmd = new SqliteCommand();
+
+            for (int i = 0 ; i < fields.Length ; i++)
+            {
+                cmd.Parameters.Add(new SqliteParameter(":" + fields[i], keys[i]));
+                terms.Add("`" + fields[i] + "` = :" + fields[i]);
+            }
+
+            string where = String.Join(" and ", terms.ToArray());
+
+            string query = String.Format("select * from {0} where {1}",
+                    m_Realm, where);
+
+            cmd.CommandText = query;
+
+            return DoQuery(cmd);
+        }
+
+        protected T[] DoQuery(SqliteCommand cmd)
+        {
+            IDataReader reader = ExecuteReader(cmd, m_Connection);
+            if (reader == null)
+                return new T[0];
+
+            CheckColumnNames(reader);
+
+            List<T> result = new List<T>();
+
+            while (reader.Read())
+            {
+                T row = new T();
+
+                foreach (string name in m_Fields.Keys)
+                {
+                    if (m_Fields[name].GetValue(row) is bool)
+                    {
+                        int v = Convert.ToInt32(reader[name]);
+                        m_Fields[name].SetValue(row, v != 0 ? true : false);
+                    }
+                    else if (m_Fields[name].GetValue(row) is UUID)
+                    {
+                        UUID uuid = UUID.Zero;
+
+                        UUID.TryParse(reader[name].ToString(), out uuid);
+                        m_Fields[name].SetValue(row, uuid);
+                    }
+                    else if (m_Fields[name].GetValue(row) is int)
+                    {
+                        int v = Convert.ToInt32(reader[name]);
+                        m_Fields[name].SetValue(row, v);
+                    }
+                    else
+                    {
+                        m_Fields[name].SetValue(row, reader[name]);
+                    }
+                }
+                
+                if (m_DataField != null)
+                {
+                    Dictionary<string, string> data =
+                            new Dictionary<string, string>();
+
+                    foreach (string col in m_ColumnNames)
+                    {
+                        data[col] = reader[col].ToString();
+                        if (data[col] == null)
+                            data[col] = String.Empty;
+                    }
+
+                    m_DataField.SetValue(row, data);
+                }
+
+                result.Add(row);
+            }
+
+            CloseCommand(cmd);
+
+            return result.ToArray();
+        }
+
+        public T[] Get(string where)
+        {
+            SqliteCommand cmd = new SqliteCommand();
+
+            string query = String.Format("select * from {0} where {1}",
+                    m_Realm, where);
+
+            cmd.CommandText = query;
+
+            return DoQuery(cmd);
+        }
+
+        public bool Store(T row)
+        {
+            SqliteCommand cmd = new SqliteCommand();
+
+            string query = "";
+            List<String> names = new List<String>();
+            List<String> values = new List<String>();
+
+            foreach (FieldInfo fi in m_Fields.Values)
+            {
+                names.Add(fi.Name);
+                values.Add(":" + fi.Name);
+                cmd.Parameters.Add(new SqliteParameter(":" + fi.Name, fi.GetValue(row).ToString()));
+            }
+
+            if (m_DataField != null)
+            {
+                Dictionary<string, string> data =
+                        (Dictionary<string, string>)m_DataField.GetValue(row);
+
+                foreach (KeyValuePair<string, string> kvp in data)
+                {
+                    names.Add(kvp.Key);
+                    values.Add(":" + kvp.Key);
+                    cmd.Parameters.Add(new SqliteParameter(":" + kvp.Key, kvp.Value));
+                }
+            }
+
+            query = String.Format("replace into {0} (`", m_Realm) + String.Join("`,`", names.ToArray()) + "`) values (" + String.Join(",", values.ToArray()) + ")";
+
+            cmd.CommandText = query;
+
+            if (ExecuteNonQuery(cmd, m_Connection) > 0)
+                return true;
+
+            return false;
+        }
+
+        public bool Delete(string field, string val)
+        {
+            SqliteCommand cmd = new SqliteCommand();
+
+            cmd.CommandText = String.Format("delete from {0} where `{1}` = :{1}", m_Realm, field);
+            cmd.Parameters.Add(new SqliteParameter(field, val));
+
+            if (ExecuteNonQuery(cmd, m_Connection) > 0)
+                return true;
+
+            return false;
+        }
+    }
+}