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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 2498 | - | 1 | |
| 2 | namespace GMap.NET.CacheProviders |
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| 3 | { |
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| 4 | #if SQLite |
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| 5 | |||
| 6 | using System.Collections.Generic; |
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| 7 | using System.Data.Common; |
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| 8 | using System.IO; |
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| 9 | using System.Text; |
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| 10 | using System; |
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| 11 | using System.Diagnostics; |
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| 12 | using System.Globalization; |
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| 13 | using GMap.NET.MapProviders; |
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| 14 | using System.Threading; |
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| 15 | |||
| 16 | #if !MONO |
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| 17 | using System.Data.SQLite; |
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| 18 | using GMap.NET.Internals; |
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| 19 | #else |
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| 20 | using SQLiteConnection = Mono.Data.Sqlite.SqliteConnection; |
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| 21 | using SQLiteTransaction = Mono.Data.Sqlite.SqliteTransaction; |
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| 22 | using SQLiteCommand = Mono.Data.Sqlite.SqliteCommand; |
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| 23 | using SQLiteDataReader = Mono.Data.Sqlite.SqliteDataReader; |
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| 24 | using SQLiteParameter = Mono.Data.Sqlite.SqliteParameter; |
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| 25 | #endif |
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| 26 | |||
| 27 | /// <summary> |
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| 28 | /// ultra fast cache system for tiles |
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| 29 | /// </summary> |
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| 30 | public class SQLitePureImageCache : PureImageCache |
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| 31 | { |
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| 32 | #if !PocketPC |
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| 33 | #if !MONO |
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| 34 | static SQLitePureImageCache() |
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| 35 | { |
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| 36 | AppDomain.CurrentDomain.AssemblyResolve += new ResolveEventHandler(CurrentDomain_AssemblyResolve); |
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| 37 | } |
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| 38 | |||
| 39 | static System.Reflection.Assembly CurrentDomain_AssemblyResolve(object sender, ResolveEventArgs args) |
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| 40 | { |
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| 41 | if(args.Name.StartsWith("System.Data.SQLite", StringComparison.OrdinalIgnoreCase)) |
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| 42 | { |
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| 43 | string appDataDir = CacheLocator.GetApplicationDataFolderPath(); |
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| 44 | if(string.IsNullOrEmpty(appDataDir)) |
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| 45 | { |
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| 46 | return null; |
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| 47 | } |
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| 48 | |||
| 49 | string dllDir = appDataDir + "DllCache" + Path.DirectorySeparatorChar; |
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| 50 | string dll = dllDir + "SQLite_v98_NET" + Environment.Version.Major + "_" + (IntPtr.Size == 8 ? "x64" : "x86") + Path.DirectorySeparatorChar + "System.Data.SQLite.DLL"; |
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| 51 | if(!File.Exists(dll)) |
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| 52 | { |
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| 53 | string dir = Path.GetDirectoryName(dll); |
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| 54 | if(!Directory.Exists(dir)) |
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| 55 | { |
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| 56 | Directory.CreateDirectory(dir); |
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| 57 | } |
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| 58 | |||
| 59 | Debug.WriteLine("Saving to DllCache: " + dll); |
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| 60 | |||
| 61 | if(Environment.Version.Major == 2) |
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| 62 | { |
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| 63 | using(MemoryStream gzipDll = new MemoryStream((IntPtr.Size == 8 ? Properties.Resources.System_Data_SQLite_x64_NET2_dll : Properties.Resources.System_Data_SQLite_x86_NET2_dll))) |
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| 64 | { |
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| 65 | using(var gs = new System.IO.Compression.GZipStream(gzipDll, System.IO.Compression.CompressionMode.Decompress)) |
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| 66 | { |
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| 67 | using(MemoryStream exctDll = new MemoryStream()) |
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| 68 | { |
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| 69 | byte[] tmp = new byte[1024 * 256]; |
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| 70 | int r = 0; |
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| 71 | while((r = gs.Read(tmp, 0, tmp.Length)) > 0) |
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| 72 | { |
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| 73 | exctDll.Write(tmp, 0, r); |
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| 74 | } |
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| 75 | File.WriteAllBytes(dll, exctDll.ToArray()); |
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| 76 | } |
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| 77 | } |
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| 78 | } |
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| 79 | } |
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| 80 | else if(Environment.Version.Major == 4) |
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| 81 | { |
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| 82 | using(MemoryStream gzipDll = new MemoryStream((IntPtr.Size == 8 ? Properties.Resources.System_Data_SQLite_x64_NET4_dll : Properties.Resources.System_Data_SQLite_x86_NET4_dll))) |
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| 83 | { |
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| 84 | using(var gs = new System.IO.Compression.GZipStream(gzipDll, System.IO.Compression.CompressionMode.Decompress)) |
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| 85 | { |
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| 86 | using(MemoryStream exctDll = new MemoryStream()) |
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| 87 | { |
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| 88 | byte[] tmp = new byte[1024 * 256]; |
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| 89 | int r = 0; |
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| 90 | while((r = gs.Read(tmp, 0, tmp.Length)) > 0) |
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| 91 | { |
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| 92 | exctDll.Write(tmp, 0, r); |
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| 93 | } |
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| 94 | File.WriteAllBytes(dll, exctDll.ToArray()); |
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| 95 | } |
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| 96 | } |
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| 97 | } |
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| 98 | } |
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| 99 | } |
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| 100 | |||
| 101 | Debug.WriteLine("Assembly.LoadFile: " + dll); |
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| 102 | |||
| 103 | return System.Reflection.Assembly.LoadFile(dll); |
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| 104 | } |
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| 105 | return null; |
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| 106 | } |
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| 107 | |||
| 108 | static int ping = 0; |
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| 109 | |||
| 110 | /// <summary> |
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| 111 | /// triggers dynamic sqlite loading |
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| 112 | /// </summary> |
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| 113 | public static void Ping() |
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| 114 | { |
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| 115 | if (++ping == 1) |
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| 116 | { |
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| 117 | Trace.WriteLine("SQLiteVersion: " + SQLiteConnection.SQLiteVersion + " | " + SQLiteConnection.SQLiteSourceId + " | " + SQLiteConnection.DefineConstants); |
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| 118 | } |
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| 119 | } |
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| 120 | #endif |
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| 121 | #endif |
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| 122 | |||
| 123 | string cache; |
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| 124 | string gtileCache; |
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| 125 | string dir; |
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| 126 | string db; |
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| 127 | bool Created = false; |
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| 128 | |||
| 129 | public string GtileCache |
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| 130 | { |
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| 131 | get |
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| 132 | { |
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| 133 | return gtileCache; |
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| 134 | } |
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| 135 | } |
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| 136 | |||
| 137 | /// <summary> |
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| 138 | /// local cache location |
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| 139 | /// </summary> |
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| 140 | public string CacheLocation |
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| 141 | { |
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| 142 | get |
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| 143 | { |
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| 144 | return cache; |
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| 145 | } |
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| 146 | set |
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| 147 | { |
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| 148 | cache = value; |
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| 149 | |||
| 150 | gtileCache = Path.Combine(cache, "TileDBv5") + Path.DirectorySeparatorChar; |
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| 151 | |||
| 152 | dir = gtileCache + GMapProvider.LanguageStr + Path.DirectorySeparatorChar; |
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| 153 | |||
| 154 | // precreate dir |
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| 155 | if(!Directory.Exists(dir)) |
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| 156 | { |
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| 157 | Directory.CreateDirectory(dir); |
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| 158 | } |
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| 159 | |||
| 160 | #if !MONO |
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| 161 | SQLiteConnection.ClearAllPools(); |
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| 162 | #endif |
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| 163 | // make empty db |
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| 164 | { |
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| 165 | db = dir + "Data.gmdb"; |
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| 166 | |||
| 167 | if(!File.Exists(db)) |
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| 168 | { |
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| 169 | Created = CreateEmptyDB(db); |
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| 170 | } |
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| 171 | else |
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| 172 | { |
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| 173 | Created = AlterDBAddTimeColumn(db); |
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| 174 | } |
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| 175 | |||
| 176 | CheckPreAllocation(); |
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| 177 | |||
| 178 | //var connBuilder = new SQLiteConnectionStringBuilder(); |
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| 179 | //connBuilder.DataSource = "c:\filePath.db"; |
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| 180 | //connBuilder.Version = 3; |
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| 181 | //connBuilder.PageSize = 4096; |
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| 182 | //connBuilder.JournalMode = SQLiteJournalModeEnum.Wal; |
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| 183 | //connBuilder.Pooling = true; |
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| 184 | //var x = connBuilder.ToString(); |
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| 185 | #if !MONO |
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| 186 | ConnectionString = string.Format("Data Source=\"{0}\";Page Size=32768;Pooling=True", db); //;Journal Mode=Wal |
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| 187 | #else |
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| 188 | ConnectionString = string.Format("Version=3,URI=file://{0},FailIfMissing=True,Page Size=32768,Pooling=True", db); |
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| 189 | #endif |
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| 190 | } |
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| 191 | |||
| 192 | // clear old attachments |
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| 193 | AttachedCaches.Clear(); |
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| 194 | RebuildFinnalSelect(); |
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| 195 | |||
| 196 | // attach all databases from main cache location |
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| 197 | #if !PocketPC |
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| 198 | var dbs = Directory.GetFiles(dir, "*.gmdb", SearchOption.AllDirectories); |
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| 199 | #else |
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| 200 | var dbs = Directory.GetFiles(dir, "*.gmdb"); |
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| 201 | #endif |
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| 202 | foreach(var d in dbs) |
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| 203 | { |
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| 204 | if(d != db) |
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| 205 | { |
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| 206 | Attach(d); |
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| 207 | } |
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| 208 | } |
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| 209 | } |
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| 210 | } |
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| 211 | |||
| 212 | /// <summary> |
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| 213 | /// pre-allocate 32MB free space 'ahead' if needed, |
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| 214 | /// decreases fragmentation |
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| 215 | /// </summary> |
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| 216 | void CheckPreAllocation() |
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| 217 | { |
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| 218 | { |
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| 219 | byte[] pageSizeBytes = new byte[2]; |
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| 220 | byte[] freePagesBytes = new byte[4]; |
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| 221 | |||
| 222 | lock(this) |
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| 223 | { |
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| 224 | using(var dbf = File.Open(db, FileMode.Open, FileAccess.Read, FileShare.ReadWrite)) |
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| 225 | { |
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| 226 | dbf.Seek(16, SeekOrigin.Begin); |
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| 227 | |||
| 228 | #if (!PocketPC && !MONO) |
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| 229 | dbf.Lock(16, 2); |
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| 230 | dbf.Read(pageSizeBytes, 0, 2); |
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| 231 | dbf.Unlock(16, 2); |
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| 232 | |||
| 233 | dbf.Seek(36, SeekOrigin.Begin); |
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| 234 | |||
| 235 | dbf.Lock(36, 4); |
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| 236 | dbf.Read(freePagesBytes, 0, 4); |
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| 237 | dbf.Unlock(36, 4); |
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| 238 | #else |
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| 239 | dbf.Read(pageSizeBytes, 0, 2); |
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| 240 | dbf.Seek(36, SeekOrigin.Begin); |
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| 241 | dbf.Read(freePagesBytes, 0, 4); |
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| 242 | #endif |
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| 243 | |||
| 244 | dbf.Close(); |
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| 245 | } |
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| 246 | } |
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| 247 | |||
| 248 | if(BitConverter.IsLittleEndian) |
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| 249 | { |
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| 250 | Array.Reverse(pageSizeBytes); |
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| 251 | Array.Reverse(freePagesBytes); |
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| 252 | } |
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| 253 | UInt16 pageSize = BitConverter.ToUInt16(pageSizeBytes, 0); |
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| 254 | UInt32 freePages = BitConverter.ToUInt32(freePagesBytes, 0); |
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| 255 | |||
| 256 | var freeMB = (pageSize * freePages) / (1024.0 * 1024.0); |
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| 257 | |||
| 258 | #if !PocketPC |
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| 259 | int addSizeMB = 32; |
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| 260 | int waitUntilMB = 4; |
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| 261 | #else |
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| 262 | int addSizeMB = 4; // reduce due to test in emulator |
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| 263 | int waitUntilMB = 2; |
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| 264 | #endif |
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| 265 | |||
| 266 | Debug.WriteLine("FreePageSpace in cache: " + freeMB + "MB | " + freePages + " pages"); |
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| 267 | |||
| 268 | if(freeMB <= waitUntilMB) |
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| 269 | { |
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| 270 | PreAllocateDB(db, addSizeMB); |
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| 271 | } |
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| 272 | } |
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| 273 | } |
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| 274 | |||
| 275 | #region -- import / export -- |
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| 276 | public static bool CreateEmptyDB(string file) |
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| 277 | { |
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| 278 | bool ret = true; |
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| 279 | |||
| 280 | try |
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| 281 | { |
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| 282 | string dir = Path.GetDirectoryName(file); |
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| 283 | if(!Directory.Exists(dir)) |
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| 284 | { |
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| 285 | Directory.CreateDirectory(dir); |
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| 286 | } |
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| 287 | |||
| 288 | using(SQLiteConnection cn = new SQLiteConnection()) |
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| 289 | { |
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| 290 | #if !MONO |
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| 291 | cn.ConnectionString = string.Format("Data Source=\"{0}\";FailIfMissing=False;Page Size=32768", file); |
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| 292 | #else |
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| 293 | cn.ConnectionString = string.Format("Version=3,URI=file://{0},FailIfMissing=False,Page Size=32768", file); |
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| 294 | #endif |
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| 295 | cn.Open(); |
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| 296 | { |
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| 297 | using(DbTransaction tr = cn.BeginTransaction()) |
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| 298 | { |
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| 299 | try |
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| 300 | { |
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| 301 | using(DbCommand cmd = cn.CreateCommand()) |
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| 302 | { |
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| 303 | cmd.Transaction = tr; |
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| 304 | #if !PocketPC |
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| 305 | cmd.CommandText = Properties.Resources.CreateTileDb; |
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| 306 | #else |
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| 307 | cmd.CommandText = GMap.NET.WindowsMobile.Properties.Resources.CreateTileDb; |
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| 308 | #endif |
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| 309 | cmd.ExecuteNonQuery(); |
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| 310 | } |
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| 311 | tr.Commit(); |
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| 312 | } |
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| 313 | catch(Exception exx) |
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| 314 | { |
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| 315 | #if MONO |
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| 316 | Console.WriteLine("CreateEmptyDB: " + exx.ToString()); |
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| 317 | #endif |
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| 318 | Debug.WriteLine("CreateEmptyDB: " + exx.ToString()); |
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| 319 | |||
| 320 | tr.Rollback(); |
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| 321 | ret = false; |
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| 322 | } |
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| 323 | } |
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| 324 | cn.Close(); |
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| 325 | } |
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| 326 | } |
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| 327 | } |
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| 328 | catch(Exception ex) |
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| 329 | { |
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| 330 | #if MONO |
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| 331 | Console.WriteLine("CreateEmptyDB: " + ex.ToString()); |
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| 332 | #endif |
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| 333 | Debug.WriteLine("CreateEmptyDB: " + ex.ToString()); |
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| 334 | ret = false; |
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| 335 | } |
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| 336 | return ret; |
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| 337 | } |
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| 338 | |||
| 339 | public static bool PreAllocateDB(string file, int addSizeInMBytes) |
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| 340 | { |
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| 341 | bool ret = true; |
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| 342 | |||
| 343 | try |
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| 344 | { |
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| 345 | Debug.WriteLine("PreAllocateDB: " + file + ", +" + addSizeInMBytes + "MB"); |
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| 346 | |||
| 347 | using(SQLiteConnection cn = new SQLiteConnection()) |
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| 348 | { |
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| 349 | #if !MONO |
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| 350 | cn.ConnectionString = string.Format("Data Source=\"{0}\";FailIfMissing=False;Page Size=32768", file); |
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| 351 | #else |
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| 352 | cn.ConnectionString = string.Format("Version=3,URI=file://{0},FailIfMissing=False,Page Size=32768", file); |
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| 353 | #endif |
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| 354 | cn.Open(); |
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| 355 | { |
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| 356 | using(DbTransaction tr = cn.BeginTransaction()) |
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| 357 | { |
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| 358 | try |
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| 359 | { |
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| 360 | using(DbCommand cmd = cn.CreateCommand()) |
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| 361 | { |
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| 362 | cmd.Transaction = tr; |
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| 363 | cmd.CommandText = string.Format("create table large (a); insert into large values (zeroblob({0})); drop table large;", addSizeInMBytes * 1024 * 1024); |
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| 364 | cmd.ExecuteNonQuery(); |
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| 365 | } |
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| 366 | tr.Commit(); |
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| 367 | } |
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| 368 | catch(Exception exx) |
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| 369 | { |
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| 370 | #if MONO |
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| 371 | Console.WriteLine("PreAllocateDB: " + exx.ToString()); |
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| 372 | #endif |
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| 373 | Debug.WriteLine("PreAllocateDB: " + exx.ToString()); |
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| 374 | |||
| 375 | tr.Rollback(); |
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| 376 | ret = false; |
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| 377 | } |
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| 378 | } |
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| 379 | cn.Close(); |
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| 380 | } |
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| 381 | } |
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| 382 | } |
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| 383 | catch(Exception ex) |
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| 384 | { |
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| 385 | #if MONO |
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| 386 | Console.WriteLine("PreAllocateDB: " + ex.ToString()); |
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| 387 | #endif |
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| 388 | Debug.WriteLine("PreAllocateDB: " + ex.ToString()); |
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| 389 | ret = false; |
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| 390 | } |
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| 391 | return ret; |
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| 392 | } |
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| 393 | |||
| 394 | private static bool AlterDBAddTimeColumn(string file) |
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| 395 | { |
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| 396 | bool ret = true; |
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| 397 | |||
| 398 | try |
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| 399 | { |
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| 400 | if(File.Exists(file)) |
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| 401 | { |
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| 402 | using(SQLiteConnection cn = new SQLiteConnection()) |
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| 403 | { |
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| 404 | #if !MONO |
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| 405 | cn.ConnectionString = string.Format("Data Source=\"{0}\";FailIfMissing=False;Page Size=32768;Pooling=True", file); |
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| 406 | #else |
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| 407 | cn.ConnectionString = string.Format("Version=3,URI=file://{0},FailIfMissing=False,Page Size=32768,Pooling=True", file); |
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| 408 | #endif |
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| 409 | cn.Open(); |
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| 410 | { |
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| 411 | using(DbTransaction tr = cn.BeginTransaction()) |
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| 412 | { |
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| 413 | bool? NoCacheTimeColumn = null; |
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| 414 | |||
| 415 | try |
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| 416 | { |
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| 417 | using(DbCommand cmd = new SQLiteCommand("SELECT CacheTime FROM Tiles", cn)) |
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| 418 | { |
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| 419 | cmd.Transaction = tr; |
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| 420 | |||
| 421 | using(DbDataReader rd = cmd.ExecuteReader()) |
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| 422 | { |
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| 423 | rd.Close(); |
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| 424 | } |
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| 425 | NoCacheTimeColumn = false; |
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| 426 | } |
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| 427 | } |
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| 428 | catch(Exception ex) |
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| 429 | { |
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| 430 | if(ex.Message.Contains("no such column: CacheTime")) |
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| 431 | { |
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| 432 | NoCacheTimeColumn = true; |
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| 433 | } |
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| 434 | else |
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| 435 | { |
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| 436 | throw ex; |
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| 437 | } |
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| 438 | } |
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| 439 | |||
| 440 | try |
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| 441 | { |
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| 442 | if(NoCacheTimeColumn.HasValue && NoCacheTimeColumn.Value) |
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| 443 | { |
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| 444 | using(DbCommand cmd = cn.CreateCommand()) |
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| 445 | { |
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| 446 | cmd.Transaction = tr; |
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| 447 | |||
| 448 | cmd.CommandText = "ALTER TABLE Tiles ADD CacheTime DATETIME"; |
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| 449 | |||
| 450 | cmd.ExecuteNonQuery(); |
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| 451 | } |
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| 452 | tr.Commit(); |
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| 453 | NoCacheTimeColumn = false; |
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| 454 | } |
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| 455 | } |
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| 456 | catch(Exception exx) |
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| 457 | { |
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| 458 | #if MONO |
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| 459 | Console.WriteLine("AlterDBAddTimeColumn: " + exx.ToString()); |
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| 460 | #endif |
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| 461 | Debug.WriteLine("AlterDBAddTimeColumn: " + exx.ToString()); |
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| 462 | |||
| 463 | tr.Rollback(); |
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| 464 | ret = false; |
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| 465 | } |
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| 466 | } |
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| 467 | cn.Close(); |
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| 468 | } |
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| 469 | } |
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| 470 | } |
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| 471 | else |
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| 472 | { |
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| 473 | ret = false; |
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| 474 | } |
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| 475 | } |
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| 476 | catch(Exception ex) |
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| 477 | { |
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| 478 | #if MONO |
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| 479 | Console.WriteLine("AlterDBAddTimeColumn: " + ex.ToString()); |
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| 480 | #endif |
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| 481 | Debug.WriteLine("AlterDBAddTimeColumn: " + ex.ToString()); |
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| 482 | ret = false; |
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| 483 | } |
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| 484 | return ret; |
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| 485 | } |
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| 486 | |||
| 487 | public static bool VacuumDb(string file) |
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| 488 | { |
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| 489 | bool ret = true; |
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| 490 | |||
| 491 | try |
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| 492 | { |
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| 493 | using(SQLiteConnection cn = new SQLiteConnection()) |
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| 494 | { |
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| 495 | #if !MONO |
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| 496 | cn.ConnectionString = string.Format("Data Source=\"{0}\";FailIfMissing=True;Page Size=32768", file); |
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| 497 | #else |
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| 498 | cn.ConnectionString = string.Format("Version=3,URI=file://{0},FailIfMissing=True,Page Size=32768", file); |
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| 499 | #endif |
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| 500 | cn.Open(); |
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| 501 | { |
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| 502 | using(DbCommand cmd = cn.CreateCommand()) |
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| 503 | { |
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| 504 | cmd.CommandText = "vacuum;"; |
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| 505 | cmd.ExecuteNonQuery(); |
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| 506 | } |
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| 507 | cn.Close(); |
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| 508 | } |
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| 509 | } |
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| 510 | } |
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| 511 | catch(Exception ex) |
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| 512 | { |
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| 513 | Debug.WriteLine("VacuumDb: " + ex.ToString()); |
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| 514 | ret = false; |
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| 515 | } |
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| 516 | return ret; |
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| 517 | } |
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| 518 | |||
| 519 | public static bool ExportMapDataToDB(string sourceFile, string destFile) |
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| 520 | { |
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| 521 | bool ret = true; |
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| 522 | |||
| 523 | try |
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| 524 | { |
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| 525 | if(!File.Exists(destFile)) |
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| 526 | { |
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| 527 | ret = CreateEmptyDB(destFile); |
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| 528 | } |
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| 529 | |||
| 530 | if(ret) |
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| 531 | { |
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| 532 | using(SQLiteConnection cn1 = new SQLiteConnection()) |
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| 533 | { |
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| 534 | #if !MONO |
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| 535 | cn1.ConnectionString = string.Format("Data Source=\"{0}\";Page Size=32768", sourceFile); |
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| 536 | #else |
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| 537 | cn1.ConnectionString = string.Format("Version=3,URI=file://{0},FailIfMissing=True,Page Size=32768", sourceFile); |
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| 538 | #endif |
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| 539 | |||
| 540 | cn1.Open(); |
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| 541 | if(cn1.State == System.Data.ConnectionState.Open) |
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| 542 | { |
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| 543 | using(SQLiteConnection cn2 = new SQLiteConnection()) |
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| 544 | { |
||
| 545 | #if !MONO |
||
| 546 | cn2.ConnectionString = string.Format("Data Source=\"{0}\";Page Size=32768", destFile); |
||
| 547 | #else |
||
| 548 | cn2.ConnectionString = string.Format("Version=3,URI=file://{0},FailIfMissing=True,Page Size=32768", destFile); |
||
| 549 | #endif |
||
| 550 | cn2.Open(); |
||
| 551 | if(cn2.State == System.Data.ConnectionState.Open) |
||
| 552 | { |
||
| 553 | using(SQLiteCommand cmd = new SQLiteCommand(string.Format("ATTACH DATABASE \"{0}\" AS Source", sourceFile), cn2)) |
||
| 554 | { |
||
| 555 | cmd.ExecuteNonQuery(); |
||
| 556 | } |
||
| 557 | |||
| 558 | using(SQLiteTransaction tr = cn2.BeginTransaction()) |
||
| 559 | { |
||
| 560 | try |
||
| 561 | { |
||
| 562 | List<long> add = new List<long>(); |
||
| 563 | using(SQLiteCommand cmd = new SQLiteCommand("SELECT id, X, Y, Zoom, Type FROM Tiles;", cn1)) |
||
| 564 | { |
||
| 565 | using(SQLiteDataReader rd = cmd.ExecuteReader()) |
||
| 566 | { |
||
| 567 | while(rd.Read()) |
||
| 568 | { |
||
| 569 | long id = rd.GetInt64(0); |
||
| 570 | using(SQLiteCommand cmd2 = new SQLiteCommand(string.Format("SELECT id FROM Tiles WHERE X={0} AND Y={1} AND Zoom={2} AND Type={3};", rd.GetInt32(1), rd.GetInt32(2), rd.GetInt32(3), rd.GetInt32(4)), cn2)) |
||
| 571 | { |
||
| 572 | using(SQLiteDataReader rd2 = cmd2.ExecuteReader()) |
||
| 573 | { |
||
| 574 | if(!rd2.Read()) |
||
| 575 | { |
||
| 576 | add.Add(id); |
||
| 577 | } |
||
| 578 | } |
||
| 579 | } |
||
| 580 | } |
||
| 581 | } |
||
| 582 | } |
||
| 583 | |||
| 584 | foreach(long id in add) |
||
| 585 | { |
||
| 586 | using(SQLiteCommand cmd = new SQLiteCommand(string.Format("INSERT INTO Tiles(X, Y, Zoom, Type, CacheTime) SELECT X, Y, Zoom, Type, CacheTime FROM Source.Tiles WHERE id={0}; INSERT INTO TilesData(id, Tile) Values((SELECT last_insert_rowid()), (SELECT Tile FROM Source.TilesData WHERE id={0}));", id), cn2)) |
||
| 587 | { |
||
| 588 | cmd.Transaction = tr; |
||
| 589 | cmd.ExecuteNonQuery(); |
||
| 590 | } |
||
| 591 | } |
||
| 592 | add.Clear(); |
||
| 593 | |||
| 594 | tr.Commit(); |
||
| 595 | } |
||
| 596 | catch(Exception exx) |
||
| 597 | { |
||
| 598 | Debug.WriteLine("ExportMapDataToDB: " + exx.ToString()); |
||
| 599 | tr.Rollback(); |
||
| 600 | ret = false; |
||
| 601 | } |
||
| 602 | } |
||
| 603 | |||
| 604 | using(SQLiteCommand cmd = new SQLiteCommand("DETACH DATABASE Source;", cn2)) |
||
| 605 | { |
||
| 606 | cmd.ExecuteNonQuery(); |
||
| 607 | } |
||
| 608 | } |
||
| 609 | } |
||
| 610 | } |
||
| 611 | } |
||
| 612 | } |
||
| 613 | } |
||
| 614 | catch(Exception ex) |
||
| 615 | { |
||
| 616 | Debug.WriteLine("ExportMapDataToDB: " + ex.ToString()); |
||
| 617 | ret = false; |
||
| 618 | } |
||
| 619 | return ret; |
||
| 620 | } |
||
| 621 | #endregion |
||
| 622 | |||
| 623 | static readonly string singleSqlSelect = "SELECT Tile FROM main.TilesData WHERE id = (SELECT id FROM main.Tiles WHERE X={0} AND Y={1} AND Zoom={2} AND Type={3})"; |
||
| 624 | static readonly string singleSqlInsert = "INSERT INTO main.Tiles(X, Y, Zoom, Type, CacheTime) VALUES(@p1, @p2, @p3, @p4, @p5)"; |
||
| 625 | static readonly string singleSqlInsertLast = "INSERT INTO main.TilesData(id, Tile) VALUES((SELECT last_insert_rowid()), @p1)"; |
||
| 626 | |||
| 627 | string ConnectionString; |
||
| 628 | |||
| 629 | readonly List<string> AttachedCaches = new List<string>(); |
||
| 630 | string finnalSqlSelect = singleSqlSelect; |
||
| 631 | string attachSqlQuery = string.Empty; |
||
| 632 | string detachSqlQuery = string.Empty; |
||
| 633 | |||
| 634 | void RebuildFinnalSelect() |
||
| 635 | { |
||
| 636 | finnalSqlSelect = null; |
||
| 637 | finnalSqlSelect = singleSqlSelect; |
||
| 638 | |||
| 639 | attachSqlQuery = null; |
||
| 640 | attachSqlQuery = string.Empty; |
||
| 641 | |||
| 642 | detachSqlQuery = null; |
||
| 643 | detachSqlQuery = string.Empty; |
||
| 644 | |||
| 645 | int i = 1; |
||
| 646 | foreach(var c in AttachedCaches) |
||
| 647 | { |
||
| 648 | finnalSqlSelect += string.Format("\nUNION SELECT Tile FROM db{0}.TilesData WHERE id = (SELECT id FROM db{0}.Tiles WHERE X={{0}} AND Y={{1}} AND Zoom={{2}} AND Type={{3}})", i); |
||
| 649 | attachSqlQuery += string.Format("\nATTACH '{0}' as db{1};", c, i); |
||
| 650 | detachSqlQuery += string.Format("\nDETACH DATABASE db{0};", i); |
||
| 651 | |||
| 652 | i++; |
||
| 653 | } |
||
| 654 | } |
||
| 655 | |||
| 656 | public void Attach(string db) |
||
| 657 | { |
||
| 658 | if(!AttachedCaches.Contains(db)) |
||
| 659 | { |
||
| 660 | AttachedCaches.Add(db); |
||
| 661 | RebuildFinnalSelect(); |
||
| 662 | } |
||
| 663 | } |
||
| 664 | |||
| 665 | public void Detach(string db) |
||
| 666 | { |
||
| 667 | if(AttachedCaches.Contains(db)) |
||
| 668 | { |
||
| 669 | AttachedCaches.Remove(db); |
||
| 670 | RebuildFinnalSelect(); |
||
| 671 | } |
||
| 672 | } |
||
| 673 | |||
| 674 | #region PureImageCache Members |
||
| 675 | |||
| 676 | int preAllocationPing = 0; |
||
| 677 | |||
| 678 | bool PureImageCache.PutImageToCache(byte[] tile, int type, GPoint pos, int zoom) |
||
| 679 | { |
||
| 680 | bool ret = true; |
||
| 681 | if(Created) |
||
| 682 | { |
||
| 683 | try |
||
| 684 | { |
||
| 685 | using(SQLiteConnection cn = new SQLiteConnection()) |
||
| 686 | { |
||
| 687 | cn.ConnectionString = ConnectionString; |
||
| 688 | cn.Open(); |
||
| 689 | { |
||
| 690 | using(DbTransaction tr = cn.BeginTransaction()) |
||
| 691 | { |
||
| 692 | try |
||
| 693 | { |
||
| 694 | using(DbCommand cmd = cn.CreateCommand()) |
||
| 695 | { |
||
| 696 | cmd.Transaction = tr; |
||
| 697 | cmd.CommandText = singleSqlInsert; |
||
| 698 | |||
| 699 | cmd.Parameters.Add(new SQLiteParameter("@p1", pos.X)); |
||
| 700 | cmd.Parameters.Add(new SQLiteParameter("@p2", pos.Y)); |
||
| 701 | cmd.Parameters.Add(new SQLiteParameter("@p3", zoom)); |
||
| 702 | cmd.Parameters.Add(new SQLiteParameter("@p4", type)); |
||
| 703 | cmd.Parameters.Add(new SQLiteParameter("@p5", DateTime.Now)); |
||
| 704 | |||
| 705 | cmd.ExecuteNonQuery(); |
||
| 706 | } |
||
| 707 | |||
| 708 | using(DbCommand cmd = cn.CreateCommand()) |
||
| 709 | { |
||
| 710 | cmd.Transaction = tr; |
||
| 711 | |||
| 712 | cmd.CommandText = singleSqlInsertLast; |
||
| 713 | cmd.Parameters.Add(new SQLiteParameter("@p1", tile)); |
||
| 714 | |||
| 715 | cmd.ExecuteNonQuery(); |
||
| 716 | } |
||
| 717 | tr.Commit(); |
||
| 718 | } |
||
| 719 | catch(Exception ex) |
||
| 720 | { |
||
| 721 | #if MONO |
||
| 722 | Console.WriteLine("PutImageToCache: " + ex.ToString()); |
||
| 723 | #endif |
||
| 724 | Debug.WriteLine("PutImageToCache: " + ex.ToString()); |
||
| 725 | |||
| 726 | tr.Rollback(); |
||
| 727 | ret = false; |
||
| 728 | } |
||
| 729 | } |
||
| 730 | } |
||
| 731 | cn.Close(); |
||
| 732 | } |
||
| 733 | |||
| 734 | if(Interlocked.Increment(ref preAllocationPing) % 22 == 0) |
||
| 735 | { |
||
| 736 | CheckPreAllocation(); |
||
| 737 | } |
||
| 738 | } |
||
| 739 | catch(Exception ex) |
||
| 740 | { |
||
| 741 | #if MONO |
||
| 742 | Console.WriteLine("PutImageToCache: " + ex.ToString()); |
||
| 743 | #endif |
||
| 744 | Debug.WriteLine("PutImageToCache: " + ex.ToString()); |
||
| 745 | ret = false; |
||
| 746 | } |
||
| 747 | } |
||
| 748 | return ret; |
||
| 749 | } |
||
| 750 | |||
| 751 | PureImage PureImageCache.GetImageFromCache(int type, GPoint pos, int zoom) |
||
| 752 | { |
||
| 753 | PureImage ret = null; |
||
| 754 | try |
||
| 755 | { |
||
| 756 | using(SQLiteConnection cn = new SQLiteConnection()) |
||
| 757 | { |
||
| 758 | cn.ConnectionString = ConnectionString; |
||
| 759 | cn.Open(); |
||
| 760 | { |
||
| 761 | if(!string.IsNullOrEmpty(attachSqlQuery)) |
||
| 762 | { |
||
| 763 | using(DbCommand com = cn.CreateCommand()) |
||
| 764 | { |
||
| 765 | com.CommandText = attachSqlQuery; |
||
| 766 | int x = com.ExecuteNonQuery(); |
||
| 767 | //Debug.WriteLine("Attach: " + x); |
||
| 768 | } |
||
| 769 | } |
||
| 770 | |||
| 771 | using(DbCommand com = cn.CreateCommand()) |
||
| 772 | { |
||
| 773 | com.CommandText = string.Format(finnalSqlSelect, pos.X, pos.Y, zoom, type); |
||
| 774 | |||
| 775 | using(DbDataReader rd = com.ExecuteReader(System.Data.CommandBehavior.SequentialAccess)) |
||
| 776 | { |
||
| 777 | if(rd.Read()) |
||
| 778 | { |
||
| 779 | long length = rd.GetBytes(0, 0, null, 0, 0); |
||
| 780 | byte[] tile = new byte[length]; |
||
| 781 | rd.GetBytes(0, 0, tile, 0, tile.Length); |
||
| 782 | { |
||
| 783 | if(GMapProvider.TileImageProxy != null) |
||
| 784 | { |
||
| 785 | ret = GMapProvider.TileImageProxy.FromArray(tile); |
||
| 786 | } |
||
| 787 | } |
||
| 788 | tile = null; |
||
| 789 | } |
||
| 790 | rd.Close(); |
||
| 791 | } |
||
| 792 | } |
||
| 793 | |||
| 794 | if(!string.IsNullOrEmpty(detachSqlQuery)) |
||
| 795 | { |
||
| 796 | using(DbCommand com = cn.CreateCommand()) |
||
| 797 | { |
||
| 798 | com.CommandText = detachSqlQuery; |
||
| 799 | int x = com.ExecuteNonQuery(); |
||
| 800 | //Debug.WriteLine("Detach: " + x); |
||
| 801 | } |
||
| 802 | } |
||
| 803 | } |
||
| 804 | cn.Close(); |
||
| 805 | } |
||
| 806 | } |
||
| 807 | catch(Exception ex) |
||
| 808 | { |
||
| 809 | #if MONO |
||
| 810 | Console.WriteLine("GetImageFromCache: " + ex.ToString()); |
||
| 811 | #endif |
||
| 812 | Debug.WriteLine("GetImageFromCache: " + ex.ToString()); |
||
| 813 | ret = null; |
||
| 814 | } |
||
| 815 | |||
| 816 | return ret; |
||
| 817 | } |
||
| 818 | |||
| 819 | int PureImageCache.DeleteOlderThan(DateTime date, int? type) |
||
| 820 | { |
||
| 821 | int affectedRows = 0; |
||
| 822 | |||
| 823 | try |
||
| 824 | { |
||
| 825 | using(SQLiteConnection cn = new SQLiteConnection()) |
||
| 826 | { |
||
| 827 | cn.ConnectionString = ConnectionString; |
||
| 828 | cn.Open(); |
||
| 829 | { |
||
| 830 | using(DbCommand com = cn.CreateCommand()) |
||
| 831 | { |
||
| 832 | com.CommandText = string.Format("DELETE FROM Tiles WHERE CacheTime is not NULL and CacheTime < datetime('{0}')", date.ToString("s")); |
||
| 833 | if(type.HasValue) |
||
| 834 | { |
||
| 835 | com.CommandText += " and Type = " + type; |
||
| 836 | } |
||
| 837 | affectedRows = com.ExecuteNonQuery(); |
||
| 838 | } |
||
| 839 | } |
||
| 840 | } |
||
| 841 | } |
||
| 842 | catch(Exception ex) |
||
| 843 | { |
||
| 844 | #if MONO |
||
| 845 | Console.WriteLine("DeleteOlderThan: " + ex); |
||
| 846 | #endif |
||
| 847 | Debug.WriteLine("DeleteOlderThan: " + ex); |
||
| 848 | } |
||
| 849 | |||
| 850 | return affectedRows; |
||
| 851 | } |
||
| 852 | |||
| 853 | #endregion |
||
| 854 | } |
||
| 855 | #endif |
||
| 856 | } |