first pass implementation of sqlite storage for user data. This
isn't functional enough to use yet, but does compile. Should be ready for testing in another day or so.afrisby
Sean Dague
parent
d929915d6b
commit
e92f2accad
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/*
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* Copyright (c) Contributors, http://www.openmetaverse.org/
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* See CONTRIBUTORS.TXT for a full list of copyright holders.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of the OpenSim Project nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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using System;
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using System.IO;
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using libsecondlife;
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using OpenSim.Framework.Utilities;
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using System.Data;
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using System.Data.SqlTypes;
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using Mono.Data.SqliteClient;
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using OpenSim.Framework.Console;
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namespace OpenSim.Framework.Data.SQLite
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{
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/// <summary>
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/// A User storage interface for the DB4o database system
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/// </summary>
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public class SQLiteUserData : IUserData
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{
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/// <summary>
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/// The database manager
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/// </summary>
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/// <summary>
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/// Artificial constructor called upon plugin load
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/// </summary>
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private const string userSelect = "select * from users";
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private DataSet ds;
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private SqliteDataAdapter da;
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public void Initialise()
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{
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SqliteConnection conn = new SqliteConnection("URI=file:userprofiles.db,version=3");
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TestTables(conn);
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ds = new DataSet();
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da = new SqliteDataAdapter(new SqliteCommand(userSelect, conn));
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ds.Tables.Add(createUsersTable());
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ds.Tables.Add(createUserAgentsTable());
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setupUserCommands(da, conn);
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da.Fill(ds.Tables["users"]);
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return;
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}
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/// <summary>
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/// Loads a specified user profile from a UUID
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/// </summary>
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/// <param name="uuid">The users UUID</param>
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/// <returns>A user profile</returns>
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public UserProfileData getUserByUUID(LLUUID uuid)
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{
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DataRow row = ds.Tables["users"].Rows.Find(uuid);
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if(row != null) {
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return buildUserProfile(row);
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} else {
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return null;
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}
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}
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/// <summary>
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/// Returns a user by searching for its name
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/// </summary>
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/// <param name="name">The users account name</param>
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/// <returns>A matching users profile</returns>
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public UserProfileData getUserByName(string name)
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{
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return getUserByName(name.Split(' ')[0], name.Split(' ')[1]);
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}
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/// <summary>
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/// Returns a user by searching for its name
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/// </summary>
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/// <param name="fname">The first part of the users account name</param>
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/// <param name="lname">The second part of the users account name</param>
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/// <returns>A matching users profile</returns>
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public UserProfileData getUserByName(string fname, string lname)
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{
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string select = "surname = '" + lname + "' and username = '" + fname + "'";
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DataRow[] rows = ds.Tables["users"].Select(select);
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if(rows.Length > 0) {
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return buildUserProfile(rows[0]);
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} else {
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return null;
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}
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}
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/// <summary>
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/// Returns a user by UUID direct
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/// </summary>
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/// <param name="uuid">The users account ID</param>
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/// <returns>A matching users profile</returns>
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public UserAgentData getAgentByUUID(LLUUID uuid)
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{
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try
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{
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return getUserByUUID(uuid).currentAgent;
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}
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catch (Exception)
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{
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return null;
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}
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}
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/// <summary>
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/// Returns a session by account name
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/// </summary>
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/// <param name="name">The account name</param>
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/// <returns>The users session agent</returns>
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public UserAgentData getAgentByName(string name)
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{
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return getAgentByName(name.Split(' ')[0], name.Split(' ')[1]);
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}
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/// <summary>
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/// Returns a session by account name
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/// </summary>
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/// <param name="fname">The first part of the users account name</param>
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/// <param name="lname">The second part of the users account name</param>
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/// <returns>A user agent</returns>
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public UserAgentData getAgentByName(string fname, string lname)
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{
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try
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{
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return getUserByName(fname,lname).currentAgent;
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}
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catch (Exception)
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{
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return null;
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}
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}
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/// <summary>
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/// Creates a new user profile
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/// </summary>
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/// <param name="user">The profile to add to the database</param>
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public void addNewUserProfile(UserProfileData user)
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{
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DataTable users = ds.Tables["users"];
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DataRow row = users.Rows.Find(user.UUID);
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if (row == null)
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{
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row = users.NewRow();
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fillUserRow(row, user);
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users.Rows.Add(row);
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}
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else
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{
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fillUserRow(row, user);
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}
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}
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/// <summary>
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/// Creates a new user profile
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/// </summary>
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/// <param name="user">The profile to add to the database</param>
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/// <returns>True on success, false on error</returns>
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public bool updateUserProfile(UserProfileData user)
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{
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DataTable users = ds.Tables["users"];
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DataRow row = users.Rows.Find(user.UUID);
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if (row == null)
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{
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row = users.NewRow();
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fillUserRow(row, user);
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users.Rows.Add(row);
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}
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else
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{
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fillUserRow(row, user);
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}
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return true;
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}
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/// <summary>
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/// Creates a new user agent
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/// </summary>
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/// <param name="agent">The agent to add to the database</param>
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public void addNewUserAgent(UserAgentData agent)
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{
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// Do nothing. yet.
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}
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/// <summary>
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/// Transfers money between two user accounts
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/// </summary>
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/// <param name="from">Starting account</param>
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/// <param name="to">End account</param>
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/// <param name="amount">The amount to move</param>
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/// <returns>Success?</returns>
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public bool moneyTransferRequest(LLUUID from, LLUUID to, uint amount)
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{
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return true;
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}
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/// <summary>
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/// Transfers inventory between two accounts
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/// </summary>
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/// <remarks>Move to inventory server</remarks>
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/// <param name="from">Senders account</param>
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/// <param name="to">Recievers account</param>
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/// <param name="item">Inventory item</param>
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/// <returns>Success?</returns>
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public bool inventoryTransferRequest(LLUUID from, LLUUID to, LLUUID item)
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{
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return true;
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}
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/// <summary>
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/// Returns the name of the storage provider
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/// </summary>
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/// <returns>Storage provider name</returns>
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public string getName()
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{
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return "Sqlite Userdata";
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}
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/// <summary>
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/// Returns the version of the storage provider
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/// </summary>
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/// <returns>Storage provider version</returns>
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public string getVersion()
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{
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return "0.1";
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}
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/***********************************************************************
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*
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* DataTable creation
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*
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**********************************************************************/
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/***********************************************************************
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*
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* Database Definition Functions
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*
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* This should be db agnostic as we define them in ADO.NET terms
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*
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**********************************************************************/
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private void createCol(DataTable dt, string name, System.Type type)
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{
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DataColumn col = new DataColumn(name, type);
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dt.Columns.Add(col);
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}
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private DataTable createUsersTable()
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{
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DataTable users = new DataTable("users");
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createCol(users, "UUID", typeof(System.String));
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createCol(users, "username", typeof(System.String));
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createCol(users, "surname", typeof(System.String));
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createCol(users, "passwordHash", typeof(System.String));
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createCol(users, "passwordSalt", typeof(System.String));
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createCol(users, "homeRegion", typeof(System.UInt32));
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createCol(users, "homeLocationX", typeof(System.Double));
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createCol(users, "homeLocationY", typeof(System.Double));
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createCol(users, "homeLocationZ", typeof(System.Double));
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createCol(users, "homeLookAtX", typeof(System.Double));
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createCol(users, "homeLookAtY", typeof(System.Double));
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createCol(users, "homeLookAtZ", typeof(System.Double));
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createCol(users, "created", typeof(System.Int32));
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createCol(users, "lastLogin", typeof(System.Int32));
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createCol(users, "rootInventoryFolderID", typeof(System.String));
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createCol(users, "userInventoryURI", typeof(System.String));
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createCol(users, "userAssetURI", typeof(System.String));
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createCol(users, "profileCanDoMask", typeof(System.UInt32));
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createCol(users, "profileWantDoMask", typeof(System.UInt32));
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createCol(users, "profileAboutText", typeof(System.String));
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createCol(users, "profileFirstText", typeof(System.String));
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createCol(users, "profileImage", typeof(System.String));
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createCol(users, "profileFirstImage", typeof(System.String));
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// Add in contraints
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users.PrimaryKey = new DataColumn[] { users.Columns["UUID"] };
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return users;
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}
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private DataTable createUserAgentsTable()
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{
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DataTable ua = new DataTable("useragents");
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// this is the UUID of the user
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createCol(ua, "UUID", typeof(System.String));
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createCol(ua, "agentIP", typeof(System.String));
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createCol(ua, "agentPort", typeof(System.UInt32));
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createCol(ua, "agentOnline", typeof(System.Boolean));
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createCol(ua, "sessionID", typeof(System.String));
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createCol(ua, "secureSessionID", typeof(System.String));
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createCol(ua, "regionID", typeof(System.String));
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createCol(ua, "loginTime", typeof(System.Int32));
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createCol(ua, "logoutTime", typeof(System.Int32));
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createCol(ua, "currentRegion", typeof(System.String));
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createCol(ua, "currentHandle", typeof(System.UInt32));
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// vectors
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createCol(ua, "currentPosX", typeof(System.Double));
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createCol(ua, "currentPosY", typeof(System.Double));
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createCol(ua, "currentPosZ", typeof(System.Double));
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// constraints
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ua.PrimaryKey = new DataColumn[] { ua.Columns["UUID"] };
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return ua;
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}
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/***********************************************************************
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*
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* Convert between ADO.NET <=> OpenSim Objects
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*
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* These should be database independant
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*
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**********************************************************************/
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private UserProfileData buildUserProfile(DataRow row)
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{
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// TODO: this doesn't work yet because something more
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// interesting has to be done to actually get these values
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// back out. Not enough time to figure it out yet.
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UserProfileData user = new UserProfileData();
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user.UUID = new LLUUID((String)row["UUID"]);
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user.username = (string)row["username"];
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user.surname = (string)row["surname"];
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user.passwordHash = (string)row["passwordHash"];
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user.passwordSalt = (string)row["passwordSalt"];
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user.homeRegion = Convert.ToUInt32(row["homeRegion"]);
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user.homeLocation = new LLVector3(
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Convert.ToSingle(row["homeLocationX"]),
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Convert.ToSingle(row["homeLocationY"]),
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Convert.ToSingle(row["homeLocationZ"])
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);
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user.homeLookAt = new LLVector3(
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Convert.ToSingle(row["homeLookAtX"]),
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Convert.ToSingle(row["homeLookAtY"]),
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Convert.ToSingle(row["homeLookAtZ"])
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);
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user.created = Convert.ToInt32(row["created"]);
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user.lastLogin = Convert.ToInt32(row["lastLogin"]);
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user.rootInventoryFolderID = new LLUUID((string)row["rootInventoryFolderID"]);
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user.userInventoryURI = (string)row["userInventoryURI"];
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user.userAssetURI = (string)row["userAssetURI"];
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user.profileCanDoMask = Convert.ToUInt32(row["profileCanDoMask"]);
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user.profileWantDoMask = Convert.ToUInt32(row["profileWantDoMask"]);
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user.profileAboutText = (string)row["profileAboutText"];
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user.profileFirstText = (string)row["profileFirstText"];
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user.profileImage = new LLUUID((string)row["profileImage"]);
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user.profileFirstImage = new LLUUID((string)row["profileFirstImage"]);
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return user;
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}
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private void fillUserRow(DataRow row, UserProfileData user)
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{
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row["UUID"] = user.UUID;
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row["username"] = user.username;
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row["surname"] = user.surname;
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row["passwordHash"] = user.passwordHash;
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row["passwordSalt"] = user.passwordSalt;
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row["homeRegion"] = user.homeRegion;
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row["homeLocationX"] = user.homeLocation.X;
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row["homeLocationY"] = user.homeLocation.Y;
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row["homeLocationZ"] = user.homeLocation.Z;
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||||||
|
row["homeLookAtX"] = user.homeLookAt.X;
|
||||||
|
row["homeLookAtY"] = user.homeLookAt.Y;
|
||||||
|
row["homeLookAtZ"] = user.homeLookAt.Z;
|
||||||
|
|
||||||
|
row["created"] = user.created;
|
||||||
|
row["lastLogin"] = user.lastLogin;
|
||||||
|
row["rootInventoryFolderID"] = user.rootInventoryFolderID;
|
||||||
|
row["userInventoryURI"] = user.userInventoryURI;
|
||||||
|
row["userAssetURI"] = user.userAssetURI;
|
||||||
|
row["profileCanDoMask"] = user.profileCanDoMask;
|
||||||
|
row["profileWantDoMask"] = user.profileWantDoMask;
|
||||||
|
row["profileAboutText"] = user.profileAboutText;
|
||||||
|
row["profileFirstText"] = user.profileFirstText;
|
||||||
|
row["profileImage"] = user.profileImage;
|
||||||
|
row["profileFirstImage"] = user.profileFirstImage;
|
||||||
|
}
|
||||||
|
|
||||||
|
// private PrimitiveBaseShape buildShape(DataRow row)
|
||||||
|
// {
|
||||||
|
// PrimitiveBaseShape s = new PrimitiveBaseShape();
|
||||||
|
// s.Scale = new LLVector3(
|
||||||
|
// Convert.ToSingle(row["ScaleX"]),
|
||||||
|
// Convert.ToSingle(row["ScaleY"]),
|
||||||
|
// Convert.ToSingle(row["ScaleZ"])
|
||||||
|
// );
|
||||||
|
// // paths
|
||||||
|
// s.PCode = Convert.ToByte(row["PCode"]);
|
||||||
|
// s.PathBegin = Convert.ToUInt16(row["PathBegin"]);
|
||||||
|
// s.PathEnd = Convert.ToUInt16(row["PathEnd"]);
|
||||||
|
// s.PathScaleX = Convert.ToByte(row["PathScaleX"]);
|
||||||
|
// s.PathScaleY = Convert.ToByte(row["PathScaleY"]);
|
||||||
|
// s.PathShearX = Convert.ToByte(row["PathShearX"]);
|
||||||
|
// s.PathShearY = Convert.ToByte(row["PathShearY"]);
|
||||||
|
// s.PathSkew = Convert.ToSByte(row["PathSkew"]);
|
||||||
|
// s.PathCurve = Convert.ToByte(row["PathCurve"]);
|
||||||
|
// s.PathRadiusOffset = Convert.ToSByte(row["PathRadiusOffset"]);
|
||||||
|
// s.PathRevolutions = Convert.ToByte(row["PathRevolutions"]);
|
||||||
|
// s.PathTaperX = Convert.ToSByte(row["PathTaperX"]);
|
||||||
|
// s.PathTaperY = Convert.ToSByte(row["PathTaperY"]);
|
||||||
|
// s.PathTwist = Convert.ToSByte(row["PathTwist"]);
|
||||||
|
// s.PathTwistBegin = Convert.ToSByte(row["PathTwistBegin"]);
|
||||||
|
// // profile
|
||||||
|
// s.ProfileBegin = Convert.ToUInt16(row["ProfileBegin"]);
|
||||||
|
// s.ProfileEnd = Convert.ToUInt16(row["ProfileEnd"]);
|
||||||
|
// s.ProfileCurve = Convert.ToByte(row["ProfileCurve"]);
|
||||||
|
// s.ProfileHollow = Convert.ToByte(row["ProfileHollow"]);
|
||||||
|
// // text TODO: this isn't right] = but I'm not sure the right
|
||||||
|
// // way to specify this as a blob atm
|
||||||
|
// s.TextureEntry = (byte[])row["Texture"];
|
||||||
|
// s.ExtraParams = (byte[])row["ExtraParams"];
|
||||||
|
// // System.Text.ASCIIEncoding encoding = new System.Text.ASCIIEncoding();
|
||||||
|
// // string texture = encoding.GetString((Byte[])row["Texture"]);
|
||||||
|
// // if (!texture.StartsWith("<"))
|
||||||
|
// // {
|
||||||
|
// // //here so that we can still work with old format database files (ie from before I added xml serialization)
|
||||||
|
// // LLObject.TextureEntry textureEntry = null;
|
||||||
|
// // textureEntry = new LLObject.TextureEntry(new LLUUID(texture));
|
||||||
|
// // s.TextureEntry = textureEntry.ToBytes();
|
||||||
|
// // }
|
||||||
|
// // else
|
||||||
|
// // {
|
||||||
|
// // TextureBlock textureEntry = TextureBlock.FromXmlString(texture);
|
||||||
|
// // s.TextureEntry = textureEntry.TextureData;
|
||||||
|
// // s.ExtraParams = textureEntry.ExtraParams;
|
||||||
|
// // }
|
||||||
|
|
||||||
|
// return s;
|
||||||
|
// }
|
||||||
|
|
||||||
|
// private void fillShapeRow(DataRow row, SceneObjectPart prim)
|
||||||
|
// {
|
||||||
|
// PrimitiveBaseShape s = prim.Shape;
|
||||||
|
// row["UUID"] = prim.UUID;
|
||||||
|
// // shape is an enum
|
||||||
|
// row["Shape"] = 0;
|
||||||
|
// // vectors
|
||||||
|
// row["ScaleX"] = s.Scale.X;
|
||||||
|
// row["ScaleY"] = s.Scale.Y;
|
||||||
|
// row["ScaleZ"] = s.Scale.Z;
|
||||||
|
// // paths
|
||||||
|
// row["PCode"] = s.PCode;
|
||||||
|
// row["PathBegin"] = s.PathBegin;
|
||||||
|
// row["PathEnd"] = s.PathEnd;
|
||||||
|
// row["PathScaleX"] = s.PathScaleX;
|
||||||
|
// row["PathScaleY"] = s.PathScaleY;
|
||||||
|
// row["PathShearX"] = s.PathShearX;
|
||||||
|
// row["PathShearY"] = s.PathShearY;
|
||||||
|
// row["PathSkew"] = s.PathSkew;
|
||||||
|
// row["PathCurve"] = s.PathCurve;
|
||||||
|
// row["PathRadiusOffset"] = s.PathRadiusOffset;
|
||||||
|
// row["PathRevolutions"] = s.PathRevolutions;
|
||||||
|
// row["PathTaperX"] = s.PathTaperX;
|
||||||
|
// row["PathTaperY"] = s.PathTaperY;
|
||||||
|
// row["PathTwist"] = s.PathTwist;
|
||||||
|
// row["PathTwistBegin"] = s.PathTwistBegin;
|
||||||
|
// // profile
|
||||||
|
// row["ProfileBegin"] = s.ProfileBegin;
|
||||||
|
// row["ProfileEnd"] = s.ProfileEnd;
|
||||||
|
// row["ProfileCurve"] = s.ProfileCurve;
|
||||||
|
// row["ProfileHollow"] = s.ProfileHollow;
|
||||||
|
// // text TODO: this isn't right] = but I'm not sure the right
|
||||||
|
// // way to specify this as a blob atm
|
||||||
|
|
||||||
|
// // And I couldn't work out how to save binary data either
|
||||||
|
// // seems that the texture colum is being treated as a string in the Datarow
|
||||||
|
// // if you do a .getType() on it, it returns string, while the other columns return correct type
|
||||||
|
// // MW[10-08-07]
|
||||||
|
// // Added following xml hack but not really ideal , also ExtraParams isn't currently part of the database
|
||||||
|
// // am a bit worried about adding it now as some people will have old format databases, so for now including that data in this xml data
|
||||||
|
// // MW[17-08-07]
|
||||||
|
// row["Texture"] = s.TextureEntry;
|
||||||
|
// row["ExtraParams"] = s.ExtraParams;
|
||||||
|
// // TextureBlock textureBlock = new TextureBlock(s.TextureEntry);
|
||||||
|
// // textureBlock.ExtraParams = s.ExtraParams;
|
||||||
|
// // System.Text.ASCIIEncoding encoding = new System.Text.ASCIIEncoding();
|
||||||
|
// // row["Texture"] = encoding.GetBytes(textureBlock.ToXMLString());
|
||||||
|
// }
|
||||||
|
|
||||||
|
/***********************************************************************
|
||||||
|
*
|
||||||
|
* SQL Statement Creation Functions
|
||||||
|
*
|
||||||
|
* These functions create SQL statements for update, insert, and create.
|
||||||
|
* They can probably be factored later to have a db independant
|
||||||
|
* portion and a db specific portion
|
||||||
|
*
|
||||||
|
**********************************************************************/
|
||||||
|
|
||||||
|
private SqliteCommand createInsertCommand(string table, DataTable dt)
|
||||||
|
{
|
||||||
|
/**
|
||||||
|
* This is subtle enough to deserve some commentary.
|
||||||
|
* Instead of doing *lots* and *lots of hardcoded strings
|
||||||
|
* for database definitions we'll use the fact that
|
||||||
|
* realistically all insert statements look like "insert
|
||||||
|
* into A(b, c) values(:b, :c) on the parameterized query
|
||||||
|
* front. If we just have a list of b, c, etc... we can
|
||||||
|
* generate these strings instead of typing them out.
|
||||||
|
*/
|
||||||
|
string[] cols = new string[dt.Columns.Count];
|
||||||
|
for (int i = 0; i < dt.Columns.Count; i++) {
|
||||||
|
DataColumn col = dt.Columns[i];
|
||||||
|
cols[i] = col.ColumnName;
|
||||||
|
}
|
||||||
|
|
||||||
|
string sql = "insert into " + table + "(";
|
||||||
|
sql += String.Join(", ", cols);
|
||||||
|
// important, the first ':' needs to be here, the rest get added in the join
|
||||||
|
sql += ") values (:";
|
||||||
|
sql += String.Join(", :", cols);
|
||||||
|
sql += ")";
|
||||||
|
SqliteCommand cmd = new SqliteCommand(sql);
|
||||||
|
|
||||||
|
// this provides the binding for all our parameters, so
|
||||||
|
// much less code than it used to be
|
||||||
|
foreach (DataColumn col in dt.Columns)
|
||||||
|
{
|
||||||
|
cmd.Parameters.Add(createSqliteParameter(col.ColumnName, col.DataType));
|
||||||
|
}
|
||||||
|
return cmd;
|
||||||
|
}
|
||||||
|
|
||||||
|
private SqliteCommand createUpdateCommand(string table, string pk, DataTable dt)
|
||||||
|
{
|
||||||
|
string sql = "update " + table + " set ";
|
||||||
|
string subsql = "";
|
||||||
|
foreach (DataColumn col in dt.Columns)
|
||||||
|
{
|
||||||
|
if (subsql.Length > 0)
|
||||||
|
{ // a map function would rock so much here
|
||||||
|
subsql += ", ";
|
||||||
|
}
|
||||||
|
subsql += col.ColumnName + "= :" + col.ColumnName;
|
||||||
|
}
|
||||||
|
sql += subsql;
|
||||||
|
sql += " where " + pk;
|
||||||
|
SqliteCommand cmd = new SqliteCommand(sql);
|
||||||
|
|
||||||
|
// this provides the binding for all our parameters, so
|
||||||
|
// much less code than it used to be
|
||||||
|
|
||||||
|
foreach (DataColumn col in dt.Columns)
|
||||||
|
{
|
||||||
|
cmd.Parameters.Add(createSqliteParameter(col.ColumnName, col.DataType));
|
||||||
|
}
|
||||||
|
return cmd;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
private string defineTable(DataTable dt)
|
||||||
|
{
|
||||||
|
string sql = "create table " + dt.TableName + "(";
|
||||||
|
string subsql = "";
|
||||||
|
foreach (DataColumn col in dt.Columns)
|
||||||
|
{
|
||||||
|
if (subsql.Length > 0)
|
||||||
|
{ // a map function would rock so much here
|
||||||
|
subsql += ",\n";
|
||||||
|
}
|
||||||
|
subsql += col.ColumnName + " " + sqliteType(col.DataType);
|
||||||
|
if(col == dt.PrimaryKey[0])
|
||||||
|
{
|
||||||
|
subsql += " primary key";
|
||||||
|
}
|
||||||
|
}
|
||||||
|
sql += subsql;
|
||||||
|
sql += ")";
|
||||||
|
return sql;
|
||||||
|
}
|
||||||
|
|
||||||
|
/***********************************************************************
|
||||||
|
*
|
||||||
|
* Database Binding functions
|
||||||
|
*
|
||||||
|
* These will be db specific due to typing, and minor differences
|
||||||
|
* in databases.
|
||||||
|
*
|
||||||
|
**********************************************************************/
|
||||||
|
|
||||||
|
///<summary>
|
||||||
|
/// This is a convenience function that collapses 5 repetitive
|
||||||
|
/// lines for defining SqliteParameters to 2 parameters:
|
||||||
|
/// column name and database type.
|
||||||
|
///
|
||||||
|
/// It assumes certain conventions like :param as the param
|
||||||
|
/// name to replace in parametrized queries, and that source
|
||||||
|
/// version is always current version, both of which are fine
|
||||||
|
/// for us.
|
||||||
|
///</summary>
|
||||||
|
///<returns>a built sqlite parameter</returns>
|
||||||
|
private SqliteParameter createSqliteParameter(string name, System.Type type)
|
||||||
|
{
|
||||||
|
SqliteParameter param = new SqliteParameter();
|
||||||
|
param.ParameterName = ":" + name;
|
||||||
|
param.DbType = dbtypeFromType(type);
|
||||||
|
param.SourceColumn = name;
|
||||||
|
param.SourceVersion = DataRowVersion.Current;
|
||||||
|
return param;
|
||||||
|
}
|
||||||
|
|
||||||
|
private void setupUserCommands(SqliteDataAdapter da, SqliteConnection conn)
|
||||||
|
{
|
||||||
|
da.InsertCommand = createInsertCommand("users", ds.Tables["users"]);
|
||||||
|
da.InsertCommand.Connection = conn;
|
||||||
|
|
||||||
|
da.UpdateCommand = createUpdateCommand("users", "UUID=:UUID", ds.Tables["users"]);
|
||||||
|
da.UpdateCommand.Connection = conn;
|
||||||
|
|
||||||
|
SqliteCommand delete = new SqliteCommand("delete from users where UUID = :UUID");
|
||||||
|
delete.Parameters.Add(createSqliteParameter("UUID", typeof(System.String)));
|
||||||
|
delete.Connection = conn;
|
||||||
|
da.DeleteCommand = delete;
|
||||||
|
}
|
||||||
|
|
||||||
|
private void InitDB(SqliteConnection conn)
|
||||||
|
{
|
||||||
|
string createUsers = defineTable(createUsersTable());
|
||||||
|
SqliteCommand pcmd = new SqliteCommand(createUsers, conn);
|
||||||
|
conn.Open();
|
||||||
|
pcmd.ExecuteNonQuery();
|
||||||
|
conn.Close();
|
||||||
|
}
|
||||||
|
|
||||||
|
private bool TestTables(SqliteConnection conn)
|
||||||
|
{
|
||||||
|
SqliteCommand cmd = new SqliteCommand(userSelect, conn);
|
||||||
|
SqliteDataAdapter pDa = new SqliteDataAdapter(cmd);
|
||||||
|
DataSet tmpDS = new DataSet();
|
||||||
|
try {
|
||||||
|
pDa.Fill(tmpDS, "users");
|
||||||
|
} catch (Mono.Data.SqliteClient.SqliteSyntaxException) {
|
||||||
|
MainLog.Instance.Verbose("DATASTORE", "SQLite Database doesn't exist... creating");
|
||||||
|
InitDB(conn);
|
||||||
|
}
|
||||||
|
return true;
|
||||||
|
}
|
||||||
|
|
||||||
|
/***********************************************************************
|
||||||
|
*
|
||||||
|
* Type conversion functions
|
||||||
|
*
|
||||||
|
**********************************************************************/
|
||||||
|
|
||||||
|
private DbType dbtypeFromType(Type type)
|
||||||
|
{
|
||||||
|
if (type == typeof(System.String)) {
|
||||||
|
return DbType.String;
|
||||||
|
} else if (type == typeof(System.Int32)) {
|
||||||
|
return DbType.Int32;
|
||||||
|
} else if (type == typeof(System.Double)) {
|
||||||
|
return DbType.Double;
|
||||||
|
} else if (type == typeof(System.Byte[])) {
|
||||||
|
return DbType.Binary;
|
||||||
|
} else {
|
||||||
|
return DbType.String;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// this is something we'll need to implement for each db
|
||||||
|
// slightly differently.
|
||||||
|
private string sqliteType(Type type)
|
||||||
|
{
|
||||||
|
if (type == typeof(System.String)) {
|
||||||
|
return "varchar(255)";
|
||||||
|
} else if (type == typeof(System.Int32)) {
|
||||||
|
return "integer";
|
||||||
|
} else if (type == typeof(System.Double)) {
|
||||||
|
return "float";
|
||||||
|
} else if (type == typeof(System.Byte[])) {
|
||||||
|
return "blob";
|
||||||
|
} else {
|
||||||
|
return "string";
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
Loading…
Reference in New Issue