Exemplo n.º 1
0
        /// <summary>
        ///     Save operation
        /// </summary>
        /// <param name="type">Type of the parent</param>
        /// <param name="keyIndex">Index for the key</param>
        /// <param name="bytes">The byte stream</param>
        public override async Task SaveAsync(Type type, int keyIndex, byte[] bytes)
        {
            var instanceFolder = _pathProvider.GetInstanceFolder(_basePath, DatabaseInstanceName, type, this, keyIndex);

            await StorageHelper.EnsureFolderExistsAsync(instanceFolder).ConfigureAwait(false);

            var instancePath = _pathProvider.GetInstancePath(_basePath, DatabaseInstanceName, type, this, keyIndex);

            // lock on this while saving, but remember that anyone else loading can now grab the
            // copy
            using (await PathLock.GetLock(instancePath).LockAsync().ConfigureAwait(false))
            {
                using (var instanceFile = await StorageHelper.GetWriterForFileAsync(instancePath).ConfigureAwait(false))
                {
                    instanceFile.Write(bytes);
                }
            }

            if (!_dirtyType)
            {
                return;
            }

            _dirtyType = false;

            await SerializeTypesAsync().ConfigureAwait(false);
        }
Exemplo n.º 2
0
        /// <summary>
        ///     Serialize the keys
        /// </summary>
        /// <param name="type">Type of the parent table</param>
        /// <param name="keyType">Type of the key</param>
        /// <param name="keyMap">Key map</param>
        public override async Task SerializeKeysAsync(Type type, Type keyType, IDictionary keyMap)
        {
            await StorageHelper.EnsureFolderExistsAsync(_pathProvider.GetTablePath(_basePath, DatabaseInstanceName, type, this)).ConfigureAwait(false);

            var pathLock = PathLock.GetLock(type.FullName);

            using (await pathLock.LockAsync().ConfigureAwait(false))
            {
                var keyPath = _pathProvider.GetKeysPath(_basePath, DatabaseInstanceName, type, this);

                using (var keyFile = await StorageHelper.GetWriterForFileAsync(keyPath).ConfigureAwait(false))
                {
                    keyFile.Write(keyMap.Count);

                    foreach (var key in keyMap.Keys)
                    {
                        DatabaseSerializer.Serialize(key, keyFile);

                        keyFile.Write((int)keyMap[key]);
                    }
                }
            }

            await SerializeTypesAsync().ConfigureAwait(false);
        }
Exemplo n.º 3
0
        /// <summary>
        ///     Deserialize a double index
        /// </summary>
        /// <typeparam name="TKey">The type of the key</typeparam>
        /// <typeparam name="TIndex1">The type of the first index</typeparam>
        /// <typeparam name="TIndex2">The type of the second index</typeparam>
        /// <param name="type">The type of the parent table</param>
        /// <param name="indexName">The name of the index</param>
        /// <returns>The index map</returns>
        public override async Task <Dictionary <TKey, Tuple <TIndex1, TIndex2> > > DeserializeIndexAsync <TKey, TIndex1, TIndex2>(Type type, string indexName)
        {
            var indexPath = _pathProvider.GetIndexPath(_basePath, DatabaseInstanceName, type, this, indexName);

            var dictionary = new Dictionary <TKey, Tuple <TIndex1, TIndex2> >();

            if (await StorageHelper.FileExistsAsync(indexPath).ConfigureAwait(false))
            {
                var pathLock = PathLock.GetLock(type.FullName);

                using (await pathLock.LockAsync().ConfigureAwait(false))
                {
                    using (var indexFile = await StorageHelper.GetReaderForFileAsync(indexPath).ConfigureAwait(false))
                    {
                        var count = indexFile.ReadInt32();

                        for (var x = 0; x < count; x++)
                        {
                            var index = Tuple.Create(
                                (TIndex1)DatabaseSerializer.Deserialize(typeof(TIndex1), indexFile),
                                (TIndex2)DatabaseSerializer.Deserialize(typeof(TIndex2), indexFile));

                            var key = (TKey)DatabaseSerializer.Deserialize(typeof(TKey), indexFile);

                            dictionary.Add(key, index);
                        }
                    }
                }
            }
            return(dictionary);
        }
Exemplo n.º 4
0
        /// <summary>
        ///     Truncate a type
        /// </summary>
        /// <param name="type">The type to truncate</param>
        public override async Task TruncateAsync(Type type)
        {
            var folderPath = _pathProvider.GetTablePath(_basePath, DatabaseInstanceName, type, this);

            using (await PathLock.GetLock(type.FullName).LockAsync().ConfigureAwait(false))
            {
                var folder = await StorageHelper.GetFolderAsync(folderPath).ConfigureAwait(false);

                await folder.DeleteAsync();
            }
        }
Exemplo n.º 5
0
        /// <summary>
        ///     Delete from the store
        /// </summary>
        /// <param name="type">The type of the parent</param>
        /// <param name="keyIndex">The index of the key</param>
        public override async Task DeleteAsync(Type type, int keyIndex)
        {
            var instancePath = _pathProvider.GetInstancePath(_basePath, DatabaseInstanceName, type, this, keyIndex);

            using (await PathLock.GetLock(instancePath).LockAsync().ConfigureAwait(false))
            {
                if (await StorageHelper.FileExistsAsync(instancePath).ConfigureAwait(false))
                {
                    await StorageHelper.DeleteFileAsync(instancePath).ConfigureAwait(false);
                }
            }
        }
Exemplo n.º 6
0
        /// <summary>
        ///     Load from the store
        /// </summary>
        /// <param name="type">The type of the parent</param>
        /// <param name="keyIndex">The index of the key</param>
        /// <returns>The byte stream</returns>
        public override async Task <BinaryReader> LoadAsync(Type type, int keyIndex)
        {
            var instancePath = _pathProvider.GetInstancePath(_basePath, DatabaseInstanceName, type, this, keyIndex);

            // otherwise let's wait for it to be released and grab it from disk
            using (await PathLock.GetLock(instancePath).LockAsync().ConfigureAwait(false))
            {
                return(await StorageHelper.FileExistsAsync(instancePath).ConfigureAwait(false)
                           ? await StorageHelper.GetReaderForFileAsync(instancePath).ConfigureAwait(false)
                           : new BinaryReader(new MemoryStream()));
            }
        }
Exemplo n.º 7
0
        /// <summary>
        ///     Purge the database
        /// </summary>
        public override async Task PurgeAsync()
        {
            var databasePath = _pathProvider.GetDatabasePath(_basePath, DatabaseInstanceName, this);

            using (await PathLock.GetLock(DatabaseInstanceName).LockAsync().ConfigureAwait(false))
            {
                var folder = await StorageHelper.GetFolderAsync(databasePath).ConfigureAwait(false);

                if (folder == null)
                {
                    return;
                }

                await folder.DeleteAsync();
            }
        }
Exemplo n.º 8
0
 /// <summary>
 ///     Get the index for the type
 /// </summary>
 /// <param name="type">The type</param>
 /// <returns>The type</returns>
 public override Task <int> GetTypeIndexAsync(string type)
 {
     return(Task.Factory.StartNew(() =>
     {
         var pathLock = PathLock.GetLock(TypeIndex.GetType().FullName);
         lock ( pathLock )
         {
             if (!TypeIndex.Contains(type))
             {
                 TypeIndex.Add(type);
                 _dirtyType = true;
             }
         }
         return TypeIndex.IndexOf(type);
     }, TaskCreationOptions.AttachedToParent));
 }
Exemplo n.º 9
0
        /// <summary>
        ///     Serialize the type master
        /// </summary>
        public override async Task SerializeTypesAsync()
        {
            var pathLock = PathLock.GetLock(TypeIndex.GetType().FullName);

            using (await pathLock.LockAsync().ConfigureAwait(false))
            {
                var typePath = _pathProvider.GetTypesPath(_basePath, DatabaseInstanceName, this);

                using (var typeFile = await StorageHelper.GetWriterForFileAsync(typePath).ConfigureAwait(false))
                {
                    typeFile.Write(TypeIndex.Count);

                    foreach (var type in TypeIndex)
                    {
                        typeFile.Write(type);
                    }
                }
            }
        }
Exemplo n.º 10
0
        /// <summary>
        ///     Serialize a single index
        /// </summary>
        /// <typeparam name="TKey">The type of the key</typeparam>
        /// <typeparam name="TIndex">The type of the index</typeparam>
        /// <param name="type">The type of the parent table</param>
        /// <param name="indexName">The name of the index</param>
        /// <param name="indexMap">The index map</param>
        public override async Task SerializeIndexAsync <TKey, TIndex>(Type type, string indexName, Dictionary <TKey, TIndex> indexMap)
        {
            var indexPath = _pathProvider.GetIndexPath(_basePath, DatabaseInstanceName, type, this, indexName);

            var pathLock = PathLock.GetLock(type.FullName);

            using (await pathLock.LockAsync().ConfigureAwait(false))
            {
                using (var indexFile = await StorageHelper.GetWriterForFileAsync(indexPath).ConfigureAwait(false))
                {
                    indexFile.Write(indexMap.Count);

                    foreach (var index in indexMap)
                    {
                        DatabaseSerializer.Serialize(index.Value, indexFile);
                        DatabaseSerializer.Serialize(index.Key, indexFile);
                    }
                }
            }
        }
Exemplo n.º 11
0
        /// <summary>
        ///     Publish the list of tables
        /// </summary>
        /// <param name="tables">The list of tables</param>
        public override async void PublishTables(Dictionary <Type, ITableDefinition> tables, Func <string, Type> resolveType)
        {
            await StorageHelper.EnsureFolderExistsAsync(_pathProvider.GetDatabasePath(_basePath, DatabaseInstanceName, this)).ConfigureAwait(false);

            var typePath = _pathProvider.GetTypesPath(_basePath, DatabaseInstanceName, this);

            if (!await StorageHelper.FileExistsAsync(typePath).ConfigureAwait(false))
            {
                return;
            }

            using (var typeFile = await StorageHelper.GetReaderForFileAsync(typePath).ConfigureAwait(false))
            {
                var count = typeFile.ReadInt32();

                for (var x = 0; x < count; x++)
                {
                    var fullTypeName = typeFile.ReadString();
                    var tableType    = resolveType(fullTypeName);

                    if (tableType == null)
                    {
                        throw new SterlingTableNotFoundException(fullTypeName, DatabaseInstanceName);
                    }

                    await GetTypeIndexAsync(tableType.AssemblyQualifiedName);
                }
            }

            var pathLock = PathLock.GetLock(DatabaseInstanceName);

            using (await pathLock.LockAsync().ConfigureAwait(false))
            {
                foreach (var type in tables.Keys)
                {
                    _tables.Add(type);
                    await StorageHelper.EnsureFolderExistsAsync(_pathProvider.GetTablePath(_basePath, DatabaseInstanceName, type, this)).ConfigureAwait(false);
                }
            }
        }
Exemplo n.º 12
0
        /// <summary>
        ///     Deserialize the keys
        /// </summary>
        /// <param name="type">Type of the parent table</param>
        /// <param name="keyType">Type of the key</param>
        /// <param name="dictionary">Empty dictionary</param>
        /// <returns>The key list</returns>
        public override async Task <IDictionary> DeserializeKeysAsync(Type type, Type keyType, IDictionary dictionary)
        {
            var keyPath = _pathProvider.GetKeysPath(_basePath, DatabaseInstanceName, type, this);

            if (await StorageHelper.FileExistsAsync(keyPath).ConfigureAwait(false))
            {
                var pathLock = PathLock.GetLock(type.FullName);

                using (await pathLock.LockAsync().ConfigureAwait(false))
                {
                    using (var keyFile = await StorageHelper.GetReaderForFileAsync(keyPath).ConfigureAwait(false))
                    {
                        var count = keyFile.ReadInt32();

                        for (var x = 0; x < count; x++)
                        {
                            dictionary.Add(DatabaseSerializer.Deserialize(keyType, keyFile), keyFile.ReadInt32());
                        }
                    }
                }
            }

            return(dictionary);
        }