From 033a3da254d5acba8fff002bec921dc39752bff8 Mon Sep 17 00:00:00 2001
From: Melanie
Date: Mon, 4 Jan 2010 23:30:38 +0000
Subject: Sqlite framework and generic handler. They compile. More I cannot
say.
---
OpenSim/Data/SQLite/SQLiteFramework.cs | 83 ++++++++
OpenSim/Data/SQLite/SQLiteGenericTableHandler.cs | 253 +++++++++++++++++++++++
2 files changed, 336 insertions(+)
create mode 100644 OpenSim/Data/SQLite/SQLiteFramework.cs
create mode 100644 OpenSim/Data/SQLite/SQLiteGenericTableHandler.cs
(limited to 'OpenSim')
diff --git a/OpenSim/Data/SQLite/SQLiteFramework.cs b/OpenSim/Data/SQLite/SQLiteFramework.cs
new file mode 100644
index 0000000..12b2750
--- /dev/null
+++ b/OpenSim/Data/SQLite/SQLiteFramework.cs
@@ -0,0 +1,83 @@
+/*
+ * 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;
+using System.Collections.Generic;
+using System.Data;
+using OpenMetaverse;
+using OpenSim.Framework;
+using Mono.Data.SqliteClient;
+
+namespace OpenSim.Data.SQLite
+{
+ /// <summary>
+ /// A database interface class to a user profile storage system
+ /// </summary>
+ public class SQLiteFramework
+ {
+ protected SqliteConnection m_Connection;
+
+ protected SQLiteFramework(string connectionString)
+ {
+ m_Connection = new SqliteConnection(connectionString);
+ m_Connection.Open();
+ }
+
+ //////////////////////////////////////////////////////////////
+ //
+ // All non queries are funneled through one connection
+ // to increase performance a little
+ //
+ protected int ExecuteNonQuery(SqliteCommand cmd)
+ {
+ lock (m_Connection)
+ {
+ cmd.Connection = m_Connection;
+
+ return cmd.ExecuteNonQuery();
+ }
+ }
+
+ protected IDataReader ExecuteReader(SqliteCommand cmd)
+ {
+ SqliteConnection newConnection =
+ (SqliteConnection)((ICloneable)m_Connection).Clone();
+ newConnection.Open();
+
+ cmd.Connection = newConnection;
+ return cmd.ExecuteReader();
+ }
+
+ protected void CloseReaderCommand(SqliteCommand cmd)
+ {
+ cmd.Connection.Close();
+ cmd.Connection.Dispose();
+ cmd.Dispose();
+ }
+ }
+}
diff --git a/OpenSim/Data/SQLite/SQLiteGenericTableHandler.cs b/OpenSim/Data/SQLite/SQLiteGenericTableHandler.cs
new file mode 100644
index 0000000..6b67ec6
--- /dev/null
+++ b/OpenSim/Data/SQLite/SQLiteGenericTableHandler.cs
@@ -0,0 +1,253 @@
+/*
+ * 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.SQLite
+{
+ 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;
+
+ public SQLiteGenericTableHandler(string connectionString,
+ string realm, string storeName) : base(connectionString)
+ {
+ m_Realm = realm;
+ if (storeName != String.Empty)
+ {
+ Assembly assem = GetType().Assembly;
+
+ Migration m = new Migration(m_Connection, assem, storeName);
+ m.Update();
+ }
+
+ 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);
+ 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);
+ }
+
+ CloseReaderCommand(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) > 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) > 0)
+ return true;
+
+ return false;
+ }
+ }
+}
--
cgit v1.1