diff options
Diffstat (limited to 'FireBase/Offline')
| -rw-r--r-- | FireBase/Offline/ConcurrentOfflineDatabase.cs | 233 | ||||
| -rw-r--r-- | FireBase/Offline/DatabaseExtensions.cs | 257 | ||||
| -rw-r--r-- | FireBase/Offline/ISetHandler.cs | 10 | ||||
| -rw-r--r-- | FireBase/Offline/InitialPullStrategy.cs | 23 | ||||
| -rw-r--r-- | FireBase/Offline/Internals/MemberAccessVisitor.cs | 46 | ||||
| -rw-r--r-- | FireBase/Offline/OfflineCacheAdapter.cs | 152 | ||||
| -rw-r--r-- | FireBase/Offline/OfflineDatabase.cs | 228 | ||||
| -rw-r--r-- | FireBase/Offline/OfflineEntry.cs | 99 | ||||
| -rw-r--r-- | FireBase/Offline/RealtimeDatabase.cs | 479 | ||||
| -rw-r--r-- | FireBase/Offline/SetHandler.cs | 19 | ||||
| -rw-r--r-- | FireBase/Offline/StreamingOptions.cs | 23 | ||||
| -rw-r--r-- | FireBase/Offline/SyncOptions.cs | 28 |
12 files changed, 0 insertions, 1597 deletions
diff --git a/FireBase/Offline/ConcurrentOfflineDatabase.cs b/FireBase/Offline/ConcurrentOfflineDatabase.cs deleted file mode 100644 index 1a9e607..0000000 --- a/FireBase/Offline/ConcurrentOfflineDatabase.cs +++ /dev/null @@ -1,233 +0,0 @@ -using System; -using System.Collections; -using System.Collections.Concurrent; -using System.Collections.Generic; -using System.IO; -using System.Linq; -using LiteDB; - -namespace Firebase.Database.Offline -{ - /// <summary> - /// The offline database. - /// </summary> - public class ConcurrentOfflineDatabase : IDictionary<string, OfflineEntry> - { - private readonly ConcurrentDictionary<string, OfflineEntry> ccache; - private readonly LiteRepository db; - - /// <summary> - /// Initializes a new instance of the <see cref="OfflineDatabase" /> class. - /// </summary> - /// <param name="itemType"> The item type which is used to determine the database file name. </param> - /// <param name="filenameModifier"> Custom string which will get appended to the file name. </param> - public ConcurrentOfflineDatabase(Type itemType, string filenameModifier) - { - var fullName = GetFileName(itemType.ToString()); - if (fullName.Length > 100) fullName = fullName.Substring(0, 100); - - var mapper = BsonMapper.Global; - mapper.Entity<OfflineEntry>().Id(o => o.Key); - - var root = Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData); - var filename = fullName + filenameModifier + ".db"; - var path = Path.Combine(root, filename); - db = new LiteRepository(new LiteDatabase(path, mapper)); - - var cache = db.Database - .GetCollection<OfflineEntry>() - .FindAll() - .ToDictionary(o => o.Key, o => o); - - ccache = new ConcurrentDictionary<string, OfflineEntry>(cache); - } - - /// <summary> - /// Gets the number of elements contained in the <see cref="T:System.Collections.Generic.ICollection`1" />. - /// </summary> - /// <returns> The number of elements contained in the <see cref="T:System.Collections.Generic.ICollection`1" />. </returns> - public int Count => ccache.Count; - - /// <summary> - /// Gets a value indicating whether this is a read-only collection. - /// </summary> - public bool IsReadOnly => false; - - /// <summary> - /// Gets an <see cref="T:System.Collections.Generic.ICollection`1" /> containing the keys of the - /// <see cref="T:System.Collections.Generic.IDictionary`2" />. - /// </summary> - /// <returns> - /// An <see cref="T:System.Collections.Generic.ICollection`1" /> containing the keys of the object that - /// implements <see cref="T:System.Collections.Generic.IDictionary`2" />. - /// </returns> - public ICollection<string> Keys => ccache.Keys; - - /// <summary> - /// Gets an <see cref="T:System.Collections.Generic.ICollection`1" /> containing the values in the - /// <see cref="T:System.Collections.Generic.IDictionary`2" />. - /// </summary> - /// <returns> - /// An <see cref="T:System.Collections.Generic.ICollection`1" /> containing the values in the object that - /// implements <see cref="T:System.Collections.Generic.IDictionary`2" />. - /// </returns> - public ICollection<OfflineEntry> Values => ccache.Values; - - /// <summary> - /// Gets or sets the element with the specified key. - /// </summary> - /// <param name="key">The key of the element to get or set.</param> - /// <returns> The element with the specified key. </returns> - public OfflineEntry this[string key] - { - get => ccache[key]; - - set - { - ccache.AddOrUpdate(key, value, (k, existing) => value); - db.Upsert(value); - } - } - - /// <summary> - /// Returns an enumerator that iterates through the collection. - /// </summary> - /// <returns> An enumerator that can be used to iterate through the collection. </returns> - public IEnumerator<KeyValuePair<string, OfflineEntry>> GetEnumerator() - { - return ccache.GetEnumerator(); - } - - IEnumerator IEnumerable.GetEnumerator() - { - return GetEnumerator(); - } - - /// <summary> - /// Adds an item to the <see cref="T:System.Collections.Generic.ICollection`1" />. - /// </summary> - /// <param name="item">The object to add to the <see cref="T:System.Collections.Generic.ICollection`1" />.</param> - public void Add(KeyValuePair<string, OfflineEntry> item) - { - Add(item.Key, item.Value); - } - - /// <summary> - /// Removes all items from the <see cref="T:System.Collections.Generic.ICollection`1" />. - /// </summary> - public void Clear() - { - ccache.Clear(); - db.Delete<OfflineEntry>(LiteDB.Query.All()); - } - - /// <summary> - /// Determines whether the <see cref="T:System.Collections.Generic.ICollection`1" /> contains a specific value. - /// </summary> - /// <param name="item">The object to locate in the <see cref="T:System.Collections.Generic.ICollection`1" />.</param> - /// <returns> - /// True if <paramref name="item" /> is found in the <see cref="T:System.Collections.Generic.ICollection`1" />; - /// otherwise, false. - /// </returns> - public bool Contains(KeyValuePair<string, OfflineEntry> item) - { - return ContainsKey(item.Key); - } - - /// <summary> - /// Copies the elements of the <see cref="T:System.Collections.Generic.ICollection`1" /> to an - /// <see cref="T:System.Array" />, starting at a particular <see cref="T:System.Array" /> index. - /// </summary> - /// <param name="array"> - /// The one-dimensional <see cref="T:System.Array" /> that is the destination of the elements copied - /// from <see cref="T:System.Collections.Generic.ICollection`1" />. The <see cref="T:System.Array" /> must have - /// zero-based indexing. - /// </param> - /// <param name="arrayIndex">The zero-based index in <paramref name="array" /> at which copying begins.</param> - public void CopyTo(KeyValuePair<string, OfflineEntry>[] array, int arrayIndex) - { - ccache.ToList().CopyTo(array, arrayIndex); - } - - /// <summary> - /// Removes the first occurrence of a specific object from the - /// <see cref="T:System.Collections.Generic.ICollection`1" />. - /// </summary> - /// <param name="item">The object to remove from the <see cref="T:System.Collections.Generic.ICollection`1" />.</param> - /// <returns> - /// True if <paramref name="item" /> was successfully removed from the - /// <see cref="T:System.Collections.Generic.ICollection`1" />; otherwise, false. This method also returns false if - /// <paramref name="item" /> is not found in the original <see cref="T:System.Collections.Generic.ICollection`1" />. - /// </returns> - public bool Remove(KeyValuePair<string, OfflineEntry> item) - { - return Remove(item.Key); - } - - /// <summary> - /// Determines whether the <see cref="T:System.Collections.Generic.IDictionary`2" /> contains an element with the - /// specified key. - /// </summary> - /// <param name="key">The key to locate in the <see cref="T:System.Collections.Generic.IDictionary`2" />.</param> - /// <returns> - /// True if the <see cref="T:System.Collections.Generic.IDictionary`2" /> contains an element with the key; - /// otherwise, false. - /// </returns> - public bool ContainsKey(string key) - { - return ccache.ContainsKey(key); - } - - /// <summary> - /// Adds an element with the provided key and value to the <see cref="T:System.Collections.Generic.IDictionary`2" />. - /// </summary> - /// <param name="key">The object to use as the key of the element to add.</param> - /// <param name="value">The object to use as the value of the element to add.</param> - public void Add(string key, OfflineEntry value) - { - ccache.AddOrUpdate(key, value, (k, existing) => value); - db.Upsert(value); - } - - /// <summary> - /// Removes the element with the specified key from the <see cref="T:System.Collections.Generic.IDictionary`2" />. - /// </summary> - /// <param name="key">The key of the element to remove.</param> - /// <returns> - /// True if the element is successfully removed; otherwise, false. This method also returns false if - /// <paramref name="key" /> was not found in the original <see cref="T:System.Collections.Generic.IDictionary`2" />. - /// </returns> - public bool Remove(string key) - { - ccache.TryRemove(key, out _); - return db.Delete<OfflineEntry>(key); - } - - /// <summary> - /// Gets the value associated with the specified key. - /// </summary> - /// <param name="key">The key whose value to get.</param> - /// <param name="value"> - /// When this method returns, the value associated with the specified key, if the key is found; - /// otherwise, the default value for the type of the <paramref name="value" /> parameter. This parameter is passed - /// uninitialized. - /// </param> - /// <returns> - /// True if the object that implements <see cref="T:System.Collections.Generic.IDictionary`2" /> contains an - /// element with the specified key; otherwise, false. - /// </returns> - public bool TryGetValue(string key, out OfflineEntry value) - { - return ccache.TryGetValue(key, out value); - } - - private string GetFileName(string fileName) - { - var invalidChars = new[] {'`', '[', ',', '='}; - foreach (var c in invalidChars.Concat(Path.GetInvalidFileNameChars()).Distinct()) - fileName = fileName.Replace(c, '_'); - - return fileName; - } - } -}
\ No newline at end of file diff --git a/FireBase/Offline/DatabaseExtensions.cs b/FireBase/Offline/DatabaseExtensions.cs deleted file mode 100644 index e7c4074..0000000 --- a/FireBase/Offline/DatabaseExtensions.cs +++ /dev/null @@ -1,257 +0,0 @@ -using System; -using System.Collections.Generic; -using System.Linq.Expressions; -using System.Reflection; -using Firebase.Database.Query; - -namespace Firebase.Database.Offline -{ - public static class DatabaseExtensions - { - /// <summary> - /// Create new instances of the <see cref="RealtimeDatabase{T}" />. - /// </summary> - /// <typeparam name="T"> Type of elements. </typeparam> - /// <param name="filenameModifier"> Custom string which will get appended to the file name. </param> - /// <param name="elementRoot"> Optional custom root element of received json items. </param> - /// <param name="streamingOptions"> Realtime streaming options. </param> - /// <param name="initialPullStrategy"> Specifies what strategy should be used for initial pulling of server data. </param> - /// <param name="pushChanges"> - /// Specifies whether changed items should actually be pushed to the server. It this is false, - /// then Put / Post / Delete will not affect server data. - /// </param> - /// <returns> The <see cref="RealtimeDatabase{T}" />. </returns> - public static RealtimeDatabase<T> AsRealtimeDatabase<T>(this ChildQuery query, string filenameModifier = "", - string elementRoot = "", StreamingOptions streamingOptions = StreamingOptions.LatestOnly, - InitialPullStrategy initialPullStrategy = InitialPullStrategy.MissingOnly, bool pushChanges = true) - where T : class - { - return new RealtimeDatabase<T>(query, elementRoot, query.Client.Options.OfflineDatabaseFactory, - filenameModifier, streamingOptions, initialPullStrategy, pushChanges); - } - - /// <summary> - /// Create new instances of the <see cref="RealtimeDatabase{T}" />. - /// </summary> - /// <typeparam name="T"> Type of elements. </typeparam> - /// <typeparam name="TSetHandler"> Type of the custom <see cref="ISetHandler{T}" /> to use. </typeparam> - /// <param name="filenameModifier"> Custom string which will get appended to the file name. </param> - /// <param name="elementRoot"> Optional custom root element of received json items. </param> - /// <param name="streamingOptions"> Realtime streaming options. </param> - /// <param name="initialPullStrategy"> Specifies what strategy should be used for initial pulling of server data. </param> - /// <param name="pushChanges"> - /// Specifies whether changed items should actually be pushed to the server. It this is false, - /// then Put / Post / Delete will not affect server data. - /// </param> - /// <returns> The <see cref="RealtimeDatabase{T}" />. </returns> - public static RealtimeDatabase<T> AsRealtimeDatabase<T, TSetHandler>(this ChildQuery query, - string filenameModifier = "", string elementRoot = "", - StreamingOptions streamingOptions = StreamingOptions.LatestOnly, - InitialPullStrategy initialPullStrategy = InitialPullStrategy.MissingOnly, bool pushChanges = true) - where T : class - where TSetHandler : ISetHandler<T>, new() - { - return new RealtimeDatabase<T>(query, elementRoot, query.Client.Options.OfflineDatabaseFactory, - filenameModifier, streamingOptions, initialPullStrategy, pushChanges, - Activator.CreateInstance<TSetHandler>()); - } - - /// <summary> - /// Overwrites existing object with given key leaving any missing properties intact in firebase. - /// </summary> - /// <param name="key"> The key. </param> - /// <param name="obj"> The object to set. </param> - /// <param name="syncOnline"> Indicates whether the item should be synced online. </param> - /// <param name="priority"> - /// The priority. Objects with higher priority will be synced first. Higher number indicates higher - /// priority. - /// </param> - public static void Patch<T>(this RealtimeDatabase<T> db, string key, T obj, bool syncOnline = true, - int priority = 1) - where T : class - { - db.Set(key, obj, syncOnline ? SyncOptions.Patch : SyncOptions.None, priority); - } - - /// <summary> - /// Overwrites existing object with given key. - /// </summary> - /// <param name="key"> The key. </param> - /// <param name="obj"> The object to set. </param> - /// <param name="syncOnline"> Indicates whether the item should be synced online. </param> - /// <param name="priority"> - /// The priority. Objects with higher priority will be synced first. Higher number indicates higher - /// priority. - /// </param> - public static void Put<T>(this RealtimeDatabase<T> db, string key, T obj, bool syncOnline = true, - int priority = 1) - where T : class - { - db.Set(key, obj, syncOnline ? SyncOptions.Put : SyncOptions.None, priority); - } - - /// <summary> - /// Adds a new entity to the Database. - /// </summary> - /// <param name="obj"> The object to add. </param> - /// <param name="syncOnline"> Indicates whether the item should be synced online. </param> - /// <param name="priority"> - /// The priority. Objects with higher priority will be synced first. Higher number indicates higher - /// priority. - /// </param> - /// <returns> The generated key for this object. </returns> - public static string Post<T>(this RealtimeDatabase<T> db, T obj, bool syncOnline = true, int priority = 1) - where T : class - { - var key = FirebaseKeyGenerator.Next(); - - db.Set(key, obj, syncOnline ? SyncOptions.Put : SyncOptions.None, priority); - - return key; - } - - /// <summary> - /// Deletes the entity with the given key. - /// </summary> - /// <param name="key"> The key. </param> - /// <param name="syncOnline"> Indicates whether the item should be synced online. </param> - /// <param name="priority"> - /// The priority. Objects with higher priority will be synced first. Higher number indicates higher - /// priority. - /// </param> - public static void Delete<T>(this RealtimeDatabase<T> db, string key, bool syncOnline = true, int priority = 1) - where T : class - { - db.Set(key, null, syncOnline ? SyncOptions.Put : SyncOptions.None, priority); - } - - /// <summary> - /// Do a Put for a nested property specified by <paramref name="propertyExpression" /> of an object with key - /// <paramref name="key" />. - /// </summary> - /// <typeparam name="T"> Type of the root elements. </typeparam> - /// <typeparam name="TProperty"> Type of the property being modified</typeparam> - /// <param name="db"> Database instance. </param> - /// <param name="key"> Key of the root element to modify. </param> - /// <param name="propertyExpression"> Expression on the root element leading to target value to modify. </param> - /// <param name="value"> Value to put. </param> - /// <param name="syncOnline"> Indicates whether the item should be synced online. </param> - /// <param name="priority"> - /// The priority. Objects with higher priority will be synced first. Higher number indicates higher - /// priority. - /// </param> - public static void Put<T, TProperty>(this RealtimeDatabase<T> db, string key, - Expression<Func<T, TProperty>> propertyExpression, TProperty value, bool syncOnline = true, - int priority = 1) - where T : class - { - db.Set(key, propertyExpression, value, syncOnline ? SyncOptions.Put : SyncOptions.None, priority); - } - - /// <summary> - /// Do a Patch for a nested property specified by <paramref name="propertyExpression" /> of an object with key - /// <paramref name="key" />. - /// </summary> - /// <typeparam name="T"> Type of the root elements. </typeparam> - /// <typeparam name="TProperty"> Type of the property being modified</typeparam> - /// <param name="db"> Database instance. </param> - /// <param name="key"> Key of the root element to modify. </param> - /// <param name="propertyExpression"> Expression on the root element leading to target value to modify. </param> - /// <param name="value"> Value to patch. </param> - /// <param name="syncOnline"> Indicates whether the item should be synced online. </param> - /// <param name="priority"> - /// The priority. Objects with higher priority will be synced first. Higher number indicates higher - /// priority. - /// </param> - public static void Patch<T, TProperty>(this RealtimeDatabase<T> db, string key, - Expression<Func<T, TProperty>> propertyExpression, TProperty value, bool syncOnline = true, - int priority = 1) - where T : class - { - db.Set(key, propertyExpression, value, syncOnline ? SyncOptions.Patch : SyncOptions.None, priority); - } - - /// <summary> - /// Delete a nested property specified by <paramref name="propertyExpression" /> of an object with key - /// <paramref name="key" />. This basically does a Put with null value. - /// </summary> - /// <typeparam name="T"> Type of the root elements. </typeparam> - /// <typeparam name="TProperty"> Type of the property being modified</typeparam> - /// <param name="db"> Database instance. </param> - /// <param name="key"> Key of the root element to modify. </param> - /// <param name="propertyExpression"> Expression on the root element leading to target value to modify. </param> - /// <param name="value"> Value to put. </param> - /// <param name="syncOnline"> Indicates whether the item should be synced online. </param> - /// <param name="priority"> - /// The priority. Objects with higher priority will be synced first. Higher number indicates higher - /// priority. - /// </param> - public static void Delete<T, TProperty>(this RealtimeDatabase<T> db, string key, - Expression<Func<T, TProperty>> propertyExpression, bool syncOnline = true, int priority = 1) - where T : class - where TProperty : class - { - db.Set(key, propertyExpression, null, syncOnline ? SyncOptions.Put : SyncOptions.None, priority); - } - - /// <summary> - /// Post a new entity into the nested dictionary specified by <paramref name="propertyExpression" /> of an object with - /// key <paramref name="key" />. - /// The key of the new entity is automatically generated. - /// </summary> - /// <typeparam name="T"> Type of the root elements. </typeparam> - /// <typeparam name="TSelector"> Type of the dictionary being modified</typeparam> - /// <typeparam name="TProperty"> Type of the value within the dictionary being modified</typeparam> - /// <param name="db"> Database instance. </param> - /// <param name="key"> Key of the root element to modify. </param> - /// <param name="propertyExpression"> Expression on the root element leading to target value to modify. </param> - /// <param name="value"> Value to put. </param> - /// <param name="syncOnline"> Indicates whether the item should be synced online. </param> - /// <param name="priority"> - /// The priority. Objects with higher priority will be synced first. Higher number indicates higher - /// priority. - /// </param> - public static void Post<T, TSelector, TProperty>(this RealtimeDatabase<T> db, string key, - Expression<Func<T, TSelector>> propertyExpression, TProperty value, bool syncOnline = true, - int priority = 1) - where T : class - where TSelector : IDictionary<string, TProperty> - { - var nextKey = FirebaseKeyGenerator.Next(); - var expression = Expression.Lambda<Func<T, TProperty>>( - Expression.Call(propertyExpression.Body, - typeof(TSelector).GetRuntimeMethod("get_Item", new[] {typeof(string)}), - Expression.Constant(nextKey)), propertyExpression.Parameters); - db.Set(key, expression, value, syncOnline ? SyncOptions.Put : SyncOptions.None, priority); - } - - /// <summary> - /// Delete an entity with key <paramref name="dictionaryKey" /> in the nested dictionary specified by - /// <paramref name="propertyExpression" /> of an object with key <paramref name="key" />. - /// The key of the new entity is automatically generated. - /// </summary> - /// <typeparam name="T"> Type of the root elements. </typeparam> - /// <typeparam name="TSelector"> Type of the dictionary being modified</typeparam> - /// <typeparam name="TProperty"> Type of the value within the dictionary being modified</typeparam> - /// <param name="db"> Database instance. </param> - /// <param name="key"> Key of the root element to modify. </param> - /// <param name="propertyExpression"> Expression on the root element leading to target value to modify. </param> - /// <param name="dictionaryKey"> Key within the nested dictionary to delete. </param> - /// <param name="syncOnline"> Indicates whether the item should be synced online. </param> - /// <param name="priority"> - /// The priority. Objects with higher priority will be synced first. Higher number indicates higher - /// priority. - /// </param> - public static void Delete<T, TProperty>(this RealtimeDatabase<T> db, string key, - Expression<Func<T, IDictionary<string, TProperty>>> propertyExpression, string dictionaryKey, - bool syncOnline = true, int priority = 1) - where T : class - { - var expression = Expression.Lambda<Func<T, TProperty>>( - Expression.Call(propertyExpression.Body, - typeof(IDictionary<string, TProperty>).GetRuntimeMethod("get_Item", new[] {typeof(string)}), - Expression.Constant(dictionaryKey)), propertyExpression.Parameters); - db.Set(key, expression, null, syncOnline ? SyncOptions.Put : SyncOptions.None, priority); - } - } -}
\ No newline at end of file diff --git a/FireBase/Offline/ISetHandler.cs b/FireBase/Offline/ISetHandler.cs deleted file mode 100644 index c04bd41..0000000 --- a/FireBase/Offline/ISetHandler.cs +++ /dev/null @@ -1,10 +0,0 @@ -using System.Threading.Tasks; -using Firebase.Database.Query; - -namespace Firebase.Database.Offline -{ - public interface ISetHandler<in T> - { - Task SetAsync(ChildQuery query, string key, OfflineEntry entry); - } -}
\ No newline at end of file diff --git a/FireBase/Offline/InitialPullStrategy.cs b/FireBase/Offline/InitialPullStrategy.cs deleted file mode 100644 index ca2bebf..0000000 --- a/FireBase/Offline/InitialPullStrategy.cs +++ /dev/null @@ -1,23 +0,0 @@ -namespace Firebase.Database.Offline -{ - /// <summary> - /// Specifies the strategy for initial pull of server data. - /// </summary> - public enum InitialPullStrategy - { - /// <summary> - /// Don't pull anything. - /// </summary> - None, - - /// <summary> - /// Pull only what isn't already stored offline. - /// </summary> - MissingOnly, - - /// <summary> - /// Pull everything that exists on the server. - /// </summary> - Everything - } -}
\ No newline at end of file diff --git a/FireBase/Offline/Internals/MemberAccessVisitor.cs b/FireBase/Offline/Internals/MemberAccessVisitor.cs deleted file mode 100644 index 89a77da..0000000 --- a/FireBase/Offline/Internals/MemberAccessVisitor.cs +++ /dev/null @@ -1,46 +0,0 @@ -using System.Collections.Generic; -using System.Linq.Expressions; -using System.Reflection; -using Newtonsoft.Json; - -namespace Firebase.Database.Offline.Internals -{ - public class MemberAccessVisitor : ExpressionVisitor - { - private readonly IList<string> propertyNames = new List<string>(); - - private bool wasDictionaryAccess; - - public IEnumerable<string> PropertyNames => propertyNames; - - public override Expression Visit(Expression expr) - { - if (expr?.NodeType == ExpressionType.MemberAccess) - { - if (wasDictionaryAccess) - { - wasDictionaryAccess = false; - } - else - { - var memberExpr = (MemberExpression) expr; - var jsonAttr = memberExpr.Member.GetCustomAttribute<JsonPropertyAttribute>(); - - propertyNames.Add(jsonAttr?.PropertyName ?? memberExpr.Member.Name); - } - } - else if (expr?.NodeType == ExpressionType.Call) - { - var callExpr = (MethodCallExpression) expr; - if (callExpr.Method.Name == "get_Item" && callExpr.Arguments.Count == 1) - { - var e = Expression.Lambda(callExpr.Arguments[0]).Compile(); - propertyNames.Add(e.DynamicInvoke().ToString()); - wasDictionaryAccess = callExpr.Arguments[0].NodeType == ExpressionType.MemberAccess; - } - } - - return base.Visit(expr); - } - } -}
\ No newline at end of file diff --git a/FireBase/Offline/OfflineCacheAdapter.cs b/FireBase/Offline/OfflineCacheAdapter.cs deleted file mode 100644 index 3153d1b..0000000 --- a/FireBase/Offline/OfflineCacheAdapter.cs +++ /dev/null @@ -1,152 +0,0 @@ -using System; -using System.Collections; -using System.Collections.Generic; -using System.Linq; - -namespace Firebase.Database.Offline -{ - internal class OfflineCacheAdapter<TKey, T> : IDictionary<string, T>, IDictionary - { - private readonly IDictionary<string, OfflineEntry> database; - - public OfflineCacheAdapter(IDictionary<string, OfflineEntry> database) - { - this.database = database; - } - - public void CopyTo(Array array, int index) - { - throw new NotImplementedException(); - } - - public bool IsSynchronized { get; } - - public object SyncRoot { get; } - - object IDictionary.this[object key] - { - get => database[key.ToString()].Deserialize<T>(); - - set - { - var keyString = key.ToString(); - if (database.ContainsKey(keyString)) - database[keyString] = new OfflineEntry(keyString, value, database[keyString].Priority, - database[keyString].SyncOptions); - else - database[keyString] = new OfflineEntry(keyString, value, 1, SyncOptions.None); - } - } - - ICollection IDictionary.Values { get; } - - ICollection IDictionary.Keys { get; } - - public bool Contains(object key) - { - return ContainsKey(key.ToString()); - } - - IDictionaryEnumerator IDictionary.GetEnumerator() - { - throw new NotImplementedException(); - } - - public void Remove(object key) - { - Remove(key.ToString()); - } - - public bool IsFixedSize => false; - - public void Add(object key, object value) - { - Add(key.ToString(), (T) value); - } - - public int Count => database.Count; - - public bool IsReadOnly => database.IsReadOnly; - - public ICollection<string> Keys => database.Keys; - - public ICollection<T> Values => database.Values.Select(o => o.Deserialize<T>()).ToList(); - - public T this[string key] - { - get => database[key].Deserialize<T>(); - - set - { - if (database.ContainsKey(key)) - database[key] = new OfflineEntry(key, value, database[key].Priority, database[key].SyncOptions); - else - database[key] = new OfflineEntry(key, value, 1, SyncOptions.None); - } - } - - public IEnumerator<KeyValuePair<string, T>> GetEnumerator() - { - return database.Select(d => new KeyValuePair<string, T>(d.Key, d.Value.Deserialize<T>())).GetEnumerator(); - } - - IEnumerator IEnumerable.GetEnumerator() - { - return GetEnumerator(); - } - - public void Add(KeyValuePair<string, T> item) - { - Add(item.Key, item.Value); - } - - public void Clear() - { - database.Clear(); - } - - public bool Contains(KeyValuePair<string, T> item) - { - return ContainsKey(item.Key); - } - - public void CopyTo(KeyValuePair<string, T>[] array, int arrayIndex) - { - throw new NotImplementedException(); - } - - public bool Remove(KeyValuePair<string, T> item) - { - return database.Remove(item.Key); - } - - public void Add(string key, T value) - { - database.Add(key, new OfflineEntry(key, value, 1, SyncOptions.None)); - } - - public bool ContainsKey(string key) - { - return database.ContainsKey(key); - } - - public bool Remove(string key) - { - return database.Remove(key); - } - - public bool TryGetValue(string key, out T value) - { - OfflineEntry val; - - if (database.TryGetValue(key, out val)) - { - value = val.Deserialize<T>(); - return true; - } - - value = default(T); - return false; - } - } -}
\ No newline at end of file diff --git a/FireBase/Offline/OfflineDatabase.cs b/FireBase/Offline/OfflineDatabase.cs deleted file mode 100644 index be0380b..0000000 --- a/FireBase/Offline/OfflineDatabase.cs +++ /dev/null @@ -1,228 +0,0 @@ -using System; -using System.Collections; -using System.Collections.Generic; -using System.IO; -using System.Linq; -using LiteDB; - -namespace Firebase.Database.Offline -{ - /// <summary> - /// The offline database. - /// </summary> - public class OfflineDatabase : IDictionary<string, OfflineEntry> - { - private readonly IDictionary<string, OfflineEntry> cache; - private readonly LiteRepository db; - - /// <summary> - /// Initializes a new instance of the <see cref="OfflineDatabase" /> class. - /// </summary> - /// <param name="itemType"> The item type which is used to determine the database file name. </param> - /// <param name="filenameModifier"> Custom string which will get appended to the file name. </param> - public OfflineDatabase(Type itemType, string filenameModifier) - { - var fullName = GetFileName(itemType.ToString()); - if (fullName.Length > 100) fullName = fullName.Substring(0, 100); - - var mapper = BsonMapper.Global; - mapper.Entity<OfflineEntry>().Id(o => o.Key); - - var root = Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData); - var filename = fullName + filenameModifier + ".db"; - var path = Path.Combine(root, filename); - db = new LiteRepository(new LiteDatabase(path, mapper)); - - cache = db.Database.GetCollection<OfflineEntry>().FindAll() - .ToDictionary(o => o.Key, o => o); - } - - /// <summary> - /// Gets the number of elements contained in the <see cref="T:System.Collections.Generic.ICollection`1" />. - /// </summary> - /// <returns> The number of elements contained in the <see cref="T:System.Collections.Generic.ICollection`1" />. </returns> - public int Count => cache.Count; - - /// <summary> - /// Gets a value indicating whether this is a read-only collection. - /// </summary> - public bool IsReadOnly => cache.IsReadOnly; - - /// <summary> - /// Gets an <see cref="T:System.Collections.Generic.ICollection`1" /> containing the keys of the - /// <see cref="T:System.Collections.Generic.IDictionary`2" />. - /// </summary> - /// <returns> - /// An <see cref="T:System.Collections.Generic.ICollection`1" /> containing the keys of the object that - /// implements <see cref="T:System.Collections.Generic.IDictionary`2" />. - /// </returns> - public ICollection<string> Keys => cache.Keys; - - /// <summary> - /// Gets an <see cref="T:System.Collections.Generic.ICollection`1" /> containing the values in the - /// <see cref="T:System.Collections.Generic.IDictionary`2" />. - /// </summary> - /// <returns> - /// An <see cref="T:System.Collections.Generic.ICollection`1" /> containing the values in the object that - /// implements <see cref="T:System.Collections.Generic.IDictionary`2" />. - /// </returns> - public ICollection<OfflineEntry> Values => cache.Values; - - /// <summary> - /// Gets or sets the element with the specified key. - /// </summary> - /// <param name="key">The key of the element to get or set.</param> - /// <returns> The element with the specified key. </returns> - public OfflineEntry this[string key] - { - get => cache[key]; - - set - { - cache[key] = value; - db.Upsert(value); - } - } - - /// <summary> - /// Returns an enumerator that iterates through the collection. - /// </summary> - /// <returns> An enumerator that can be used to iterate through the collection. </returns> - public IEnumerator<KeyValuePair<string, OfflineEntry>> GetEnumerator() - { - return cache.GetEnumerator(); - } - - IEnumerator IEnumerable.GetEnumerator() - { - return GetEnumerator(); - } - - /// <summary> - /// Adds an item to the <see cref="T:System.Collections.Generic.ICollection`1" />. - /// </summary> - /// <param name="item">The object to add to the <see cref="T:System.Collections.Generic.ICollection`1" />.</param> - public void Add(KeyValuePair<string, OfflineEntry> item) - { - Add(item.Key, item.Value); - } - - /// <summary> - /// Removes all items from the <see cref="T:System.Collections.Generic.ICollection`1" />. - /// </summary> - public void Clear() - { - cache.Clear(); - db.Delete<OfflineEntry>(LiteDB.Query.All()); - } - - /// <summary> - /// Determines whether the <see cref="T:System.Collections.Generic.ICollection`1" /> contains a specific value. - /// </summary> - /// <param name="item">The object to locate in the <see cref="T:System.Collections.Generic.ICollection`1" />.</param> - /// <returns> - /// True if <paramref name="item" /> is found in the <see cref="T:System.Collections.Generic.ICollection`1" />; - /// otherwise, false. - /// </returns> - public bool Contains(KeyValuePair<string, OfflineEntry> item) - { - return ContainsKey(item.Key); - } - - /// <summary> - /// Copies the elements of the <see cref="T:System.Collections.Generic.ICollection`1" /> to an - /// <see cref="T:System.Array" />, starting at a particular <see cref="T:System.Array" /> index. - /// </summary> - /// <param name="array"> - /// The one-dimensional <see cref="T:System.Array" /> that is the destination of the elements copied - /// from <see cref="T:System.Collections.Generic.ICollection`1" />. The <see cref="T:System.Array" /> must have - /// zero-based indexing. - /// </param> - /// <param name="arrayIndex">The zero-based index in <paramref name="array" /> at which copying begins.</param> - public void CopyTo(KeyValuePair<string, OfflineEntry>[] array, int arrayIndex) - { - cache.CopyTo(array, arrayIndex); - } - - /// <summary> - /// Removes the first occurrence of a specific object from the - /// <see cref="T:System.Collections.Generic.ICollection`1" />. - /// </summary> - /// <param name="item">The object to remove from the <see cref="T:System.Collections.Generic.ICollection`1" />.</param> - /// <returns> - /// True if <paramref name="item" /> was successfully removed from the - /// <see cref="T:System.Collections.Generic.ICollection`1" />; otherwise, false. This method also returns false if - /// <paramref name="item" /> is not found in the original <see cref="T:System.Collections.Generic.ICollection`1" />. - /// </returns> - public bool Remove(KeyValuePair<string, OfflineEntry> item) - { - return Remove(item.Key); - } - - /// <summary> - /// Determines whether the <see cref="T:System.Collections.Generic.IDictionary`2" /> contains an element with the - /// specified key. - /// </summary> - /// <param name="key">The key to locate in the <see cref="T:System.Collections.Generic.IDictionary`2" />.</param> - /// <returns> - /// True if the <see cref="T:System.Collections.Generic.IDictionary`2" /> contains an element with the key; - /// otherwise, false. - /// </returns> - public bool ContainsKey(string key) - { - return cache.ContainsKey(key); - } - - /// <summary> - /// Adds an element with the provided key and value to the <see cref="T:System.Collections.Generic.IDictionary`2" />. - /// </summary> - /// <param name="key">The object to use as the key of the element to add.</param> - /// <param name="value">The object to use as the value of the element to add.</param> - public void Add(string key, OfflineEntry value) - { - cache.Add(key, value); - db.Insert(value); - } - - /// <summary> - /// Removes the element with the specified key from the <see cref="T:System.Collections.Generic.IDictionary`2" />. - /// </summary> - /// <param name="key">The key of the element to remove.</param> - /// <returns> - /// True if the element is successfully removed; otherwise, false. This method also returns false if - /// <paramref name="key" /> was not found in the original <see cref="T:System.Collections.Generic.IDictionary`2" />. - /// </returns> - public bool Remove(string key) - { - cache.Remove(key); - return db.Delete<OfflineEntry>(key); - } - - /// <summary> - /// Gets the value associated with the specified key. - /// </summary> - /// <param name="key">The key whose value to get.</param> - /// <param name="value"> - /// When this method returns, the value associated with the specified key, if the key is found; - /// otherwise, the default value for the type of the <paramref name="value" /> parameter. This parameter is passed - /// uninitialized. - /// </param> - /// <returns> - /// True if the object that implements <see cref="T:System.Collections.Generic.IDictionary`2" /> contains an - /// element with the specified key; otherwise, false. - /// </returns> - public bool TryGetValue(string key, out OfflineEntry value) - { - return cache.TryGetValue(key, out value); - } - - private string GetFileName(string fileName) - { - var invalidChars = new[] {'`', '[', ',', '='}; - foreach (var c in invalidChars.Concat(Path.GetInvalidFileNameChars()).Distinct()) - fileName = fileName.Replace(c, '_'); - - return fileName; - } - } -}
\ No newline at end of file diff --git a/FireBase/Offline/OfflineEntry.cs b/FireBase/Offline/OfflineEntry.cs deleted file mode 100644 index 9feffa3..0000000 --- a/FireBase/Offline/OfflineEntry.cs +++ /dev/null @@ -1,99 +0,0 @@ -using System; -using Newtonsoft.Json; - -namespace Firebase.Database.Offline -{ - /// <summary> - /// Represents an object stored in offline storage. - /// </summary> - public class OfflineEntry - { - private object dataInstance; - - /// <summary> - /// Initializes a new instance of the <see cref="OfflineEntry" /> class with an already serialized object. - /// </summary> - /// <param name="key"> The key. </param> - /// <param name="obj"> The object. </param> - /// <param name="priority"> - /// The priority. Objects with higher priority will be synced first. Higher number indicates higher - /// priority. - /// </param> - /// <param name="syncOptions"> The sync options. </param> - public OfflineEntry(string key, object obj, string data, int priority, SyncOptions syncOptions, - bool isPartial = false) - { - Key = key; - Priority = priority; - Data = data; - Timestamp = DateTime.UtcNow; - SyncOptions = syncOptions; - IsPartial = isPartial; - - dataInstance = obj; - } - - /// <summary> - /// Initializes a new instance of the <see cref="OfflineEntry" /> class. - /// </summary> - /// <param name="key"> The key. </param> - /// <param name="obj"> The object. </param> - /// <param name="priority"> - /// The priority. Objects with higher priority will be synced first. Higher number indicates higher - /// priority. - /// </param> - /// <param name="syncOptions"> The sync options. </param> - public OfflineEntry(string key, object obj, int priority, SyncOptions syncOptions, bool isPartial = false) - : this(key, obj, JsonConvert.SerializeObject(obj), priority, syncOptions, isPartial) - { - } - - /// <summary> - /// Initializes a new instance of the <see cref="OfflineEntry" /> class. - /// </summary> - public OfflineEntry() - { - } - - /// <summary> - /// Gets or sets the key of this entry. - /// </summary> - public string Key { get; set; } - - /// <summary> - /// Gets or sets the priority. Objects with higher priority will be synced first. Higher number indicates higher - /// priority. - /// </summary> - public int Priority { get; set; } - - /// <summary> - /// Gets or sets the timestamp when this entry was last touched. - /// </summary> - public DateTime Timestamp { get; set; } - - /// <summary> - /// Gets or sets the <see cref="SyncOptions" /> which define what sync state this entry is in. - /// </summary> - public SyncOptions SyncOptions { get; set; } - - /// <summary> - /// Gets or sets serialized JSON data. - /// </summary> - public string Data { get; set; } - - /// <summary> - /// Specifies whether this is only a partial object. - /// </summary> - public bool IsPartial { get; set; } - - /// <summary> - /// Deserializes <see cref="Data" /> into <typeparamref name="T" />. The result is cached. - /// </summary> - /// <typeparam name="T"> Type of object to deserialize into. </typeparam> - /// <returns> Instance of <typeparamref name="T" />. </returns> - public T Deserialize<T>() - { - return (T) (dataInstance ?? (dataInstance = JsonConvert.DeserializeObject<T>(Data))); - } - } -}
\ No newline at end of file diff --git a/FireBase/Offline/RealtimeDatabase.cs b/FireBase/Offline/RealtimeDatabase.cs deleted file mode 100644 index 973db46..0000000 --- a/FireBase/Offline/RealtimeDatabase.cs +++ /dev/null @@ -1,479 +0,0 @@ -using System; -using System.Collections.Generic; -using System.Linq; -using System.Linq.Expressions; -using System.Net; -using System.Reactive.Disposables; -using System.Reactive.Linq; -using System.Reactive.Subjects; -using System.Reactive.Threading.Tasks; -using System.Reflection; -using System.Threading; -using System.Threading.Tasks; -using Firebase.Database.Extensions; -using Firebase.Database.Offline.Internals; -using Firebase.Database.Query; -using Firebase.Database.Streaming; -using Newtonsoft.Json; - -namespace Firebase.Database.Offline -{ - /// <summary> - /// The real-time Database which synchronizes online and offline data. - /// </summary> - /// <typeparam name="T"> Type of entities. </typeparam> - public class RealtimeDatabase<T> : IDisposable where T : class - { - private readonly ChildQuery childQuery; - private readonly string elementRoot; - private readonly FirebaseCache<T> firebaseCache; - private readonly InitialPullStrategy initialPullStrategy; - private readonly bool pushChanges; - private readonly StreamingOptions streamingOptions; - private readonly Subject<FirebaseEvent<T>> subject; - private FirebaseSubscription<T> firebaseSubscription; - - private bool isSyncRunning; - private IObservable<FirebaseEvent<T>> observable; - - /// <summary> - /// Initializes a new instance of the <see cref="RealtimeDatabase{T}" /> class. - /// </summary> - /// <param name="childQuery"> The child query. </param> - /// <param name="elementRoot"> The element Root. </param> - /// <param name="offlineDatabaseFactory"> The offline database factory. </param> - /// <param name="filenameModifier"> Custom string which will get appended to the file name. </param> - /// <param name="streamChanges"> Specifies whether changes should be streamed from the server. </param> - /// <param name="pullEverythingOnStart"> - /// Specifies if everything should be pull from the online storage on start. It only - /// makes sense when <see cref="streamChanges" /> is set to true. - /// </param> - /// <param name="pushChanges"> - /// Specifies whether changed items should actually be pushed to the server. If this is false, - /// then Put / Post / Delete will not affect server data. - /// </param> - public RealtimeDatabase(ChildQuery childQuery, string elementRoot, - Func<Type, string, IDictionary<string, OfflineEntry>> offlineDatabaseFactory, string filenameModifier, - StreamingOptions streamingOptions, InitialPullStrategy initialPullStrategy, bool pushChanges, - ISetHandler<T> setHandler = null) - { - this.childQuery = childQuery; - this.elementRoot = elementRoot; - this.streamingOptions = streamingOptions; - this.initialPullStrategy = initialPullStrategy; - this.pushChanges = pushChanges; - Database = offlineDatabaseFactory(typeof(T), filenameModifier); - firebaseCache = new FirebaseCache<T>(new OfflineCacheAdapter<string, T>(Database)); - subject = new Subject<FirebaseEvent<T>>(); - - PutHandler = setHandler ?? new SetHandler<T>(); - - isSyncRunning = true; - Task.Factory.StartNew(SynchronizeThread, CancellationToken.None, TaskCreationOptions.LongRunning, - TaskScheduler.Default); - } - - /// <summary> - /// Gets the backing Database. - /// </summary> - public IDictionary<string, OfflineEntry> Database { get; } - - public ISetHandler<T> PutHandler { private get; set; } - - public void Dispose() - { - subject.OnCompleted(); - firebaseSubscription?.Dispose(); - } - - /// <summary> - /// Event raised whenever an exception is thrown in the synchronization thread. Exception thrown in there are - /// swallowed, so this event is the only way to get to them. - /// </summary> - public event EventHandler<ExceptionEventArgs> SyncExceptionThrown; - - /// <summary> - /// Overwrites existing object with given key. - /// </summary> - /// <param name="key"> The key. </param> - /// <param name="obj"> The object to set. </param> - /// <param name="syncOnline"> Indicates whether the item should be synced online. </param> - /// <param name="priority"> - /// The priority. Objects with higher priority will be synced first. Higher number indicates higher - /// priority. - /// </param> - public void Set(string key, T obj, SyncOptions syncOptions, int priority = 1) - { - SetAndRaise(key, new OfflineEntry(key, obj, priority, syncOptions)); - } - - public void Set<TProperty>(string key, Expression<Func<T, TProperty>> propertyExpression, object value, - SyncOptions syncOptions, int priority = 1) - { - var fullKey = GenerateFullKey(key, propertyExpression, syncOptions); - var serializedObject = JsonConvert.SerializeObject(value).Trim('"', '\\'); - - if (fullKey.Item3) - { - if (typeof(TProperty) != typeof(string) || value == null) - // don't escape non-string primitives and null; - serializedObject = $"{{ \"{fullKey.Item2}\" : {serializedObject} }}"; - else - serializedObject = $"{{ \"{fullKey.Item2}\" : \"{serializedObject}\" }}"; - } - - var setObject = firebaseCache.PushData("/" + fullKey.Item1, serializedObject).First(); - - if (!Database.ContainsKey(key) || Database[key].SyncOptions != SyncOptions.Patch && - Database[key].SyncOptions != SyncOptions.Put) - Database[fullKey.Item1] = - new OfflineEntry(fullKey.Item1, value, serializedObject, priority, syncOptions, true); - - subject.OnNext(new FirebaseEvent<T>(key, setObject.Object, - setObject == null ? FirebaseEventType.Delete : FirebaseEventType.InsertOrUpdate, - FirebaseEventSource.Offline)); - } - - /// <summary> - /// Fetches an object with the given key and adds it to the Database. - /// </summary> - /// <param name="key"> The key. </param> - /// <param name="priority"> - /// The priority. Objects with higher priority will be synced first. Higher number indicates higher - /// priority. - /// </param> - public void Pull(string key, int priority = 1) - { - if (!Database.ContainsKey(key)) - Database[key] = new OfflineEntry(key, null, priority, SyncOptions.Pull); - else if (Database[key].SyncOptions == SyncOptions.None) - // pull only if push isn't pending - Database[key].SyncOptions = SyncOptions.Pull; - } - - /// <summary> - /// Fetches everything from the remote database. - /// </summary> - public async Task PullAsync() - { - var existingEntries = await childQuery - .OnceAsync<T>() - .ToObservable() - .RetryAfterDelay<IReadOnlyCollection<FirebaseObject<T>>, FirebaseException>( - childQuery.Client.Options.SyncPeriod, - ex => ex.StatusCode == - HttpStatusCode - .OK) // OK implies the request couldn't complete due to network error. - .Select(e => ResetDatabaseFromInitial(e, false)) - .SelectMany(e => e) - .Do(e => - { - Database[e.Key] = new OfflineEntry(e.Key, e.Object, 1, SyncOptions.None); - subject.OnNext(new FirebaseEvent<T>(e.Key, e.Object, FirebaseEventType.InsertOrUpdate, - FirebaseEventSource.OnlinePull)); - }) - .ToList(); - - // Remove items not stored online - foreach (var item in Database.Keys.Except(existingEntries.Select(f => f.Key)).ToList()) - { - Database.Remove(item); - subject.OnNext(new FirebaseEvent<T>(item, null, FirebaseEventType.Delete, - FirebaseEventSource.OnlinePull)); - } - } - - /// <summary> - /// Retrieves all offline items currently stored in local database. - /// </summary> - public IEnumerable<FirebaseObject<T>> Once() - { - return Database - .Where(kvp => !string.IsNullOrEmpty(kvp.Value.Data) && kvp.Value.Data != "null" && !kvp.Value.IsPartial) - .Select(kvp => new FirebaseObject<T>(kvp.Key, kvp.Value.Deserialize<T>())) - .ToList(); - } - - /// <summary> - /// Starts observing the real-time Database. Events will be fired both when change is done locally and remotely. - /// </summary> - /// <returns> Stream of <see cref="FirebaseEvent{T}" />. </returns> - public IObservable<FirebaseEvent<T>> AsObservable() - { - if (!isSyncRunning) - { - isSyncRunning = true; - Task.Factory.StartNew(SynchronizeThread, CancellationToken.None, TaskCreationOptions.LongRunning, - TaskScheduler.Default); - } - - if (observable == null) - { - var initialData = Observable.Return(FirebaseEvent<T>.Empty(FirebaseEventSource.Offline)); - if (Database.TryGetValue(elementRoot, out var oe)) - initialData = Observable.Return(oe) - .Where(offlineEntry => - !string.IsNullOrEmpty(offlineEntry.Data) && offlineEntry.Data != "null" && - !offlineEntry.IsPartial) - .Select(offlineEntry => new FirebaseEvent<T>(offlineEntry.Key, offlineEntry.Deserialize<T>(), - FirebaseEventType.InsertOrUpdate, FirebaseEventSource.Offline)); - else if (Database.Count > 0) - initialData = Database - .Where(kvp => - !string.IsNullOrEmpty(kvp.Value.Data) && kvp.Value.Data != "null" && !kvp.Value.IsPartial) - .Select(kvp => new FirebaseEvent<T>(kvp.Key, kvp.Value.Deserialize<T>(), - FirebaseEventType.InsertOrUpdate, FirebaseEventSource.Offline)) - .ToList() - .ToObservable(); - - observable = initialData - .Merge(subject) - .Merge(GetInitialPullObservable() - .RetryAfterDelay<IReadOnlyCollection<FirebaseObject<T>>, FirebaseException>( - childQuery.Client.Options.SyncPeriod, - ex => ex.StatusCode == - HttpStatusCode - .OK) // OK implies the request couldn't complete due to network error. - .Select(e => ResetDatabaseFromInitial(e)) - .SelectMany(e => e) - .Do(SetObjectFromInitialPull) - .Select(e => new FirebaseEvent<T>(e.Key, e.Object, - e.Object == null ? FirebaseEventType.Delete : FirebaseEventType.InsertOrUpdate, - FirebaseEventSource.OnlineInitial)) - .Concat(Observable.Create<FirebaseEvent<T>>(observer => - InitializeStreamingSubscription(observer)))) - .Do(next => { }, e => observable = null, () => observable = null) - .Replay() - .RefCount(); - } - - return observable; - } - - private IReadOnlyCollection<FirebaseObject<T>> ResetDatabaseFromInitial( - IReadOnlyCollection<FirebaseObject<T>> collection, bool onlyWhenInitialEverything = true) - { - if (onlyWhenInitialEverything && initialPullStrategy != InitialPullStrategy.Everything) return collection; - - // items which are in local db, but not in the online collection - var extra = Once() - .Select(f => f.Key) - .Except(collection.Select(c => c.Key)) - .Select(k => new FirebaseObject<T>(k, null)); - - return collection.Concat(extra).ToList(); - } - - private void SetObjectFromInitialPull(FirebaseObject<T> e) - { - // set object with no sync only if it doesn't exist yet - // and the InitialPullStrategy != Everything - // this attempts to deal with scenario when you are offline, have local changes and go online - // in this case having the InitialPullStrategy set to everything would basically purge all local changes - if (!Database.ContainsKey(e.Key) || Database[e.Key].SyncOptions == SyncOptions.None || - Database[e.Key].SyncOptions == SyncOptions.Pull || - initialPullStrategy != InitialPullStrategy.Everything) - Database[e.Key] = new OfflineEntry(e.Key, e.Object, 1, SyncOptions.None); - } - - private IObservable<IReadOnlyCollection<FirebaseObject<T>>> GetInitialPullObservable() - { - FirebaseQuery query; - switch (initialPullStrategy) - { - case InitialPullStrategy.MissingOnly: - query = childQuery.OrderByKey().StartAt(() => GetLatestKey()); - break; - case InitialPullStrategy.Everything: - query = childQuery; - break; - case InitialPullStrategy.None: - default: - return Observable.Empty<IReadOnlyCollection<FirebaseEvent<T>>>(); - } - - if (string.IsNullOrWhiteSpace(elementRoot)) - return Observable.Defer(() => query.OnceAsync<T>().ToObservable()); - - // there is an element root, which indicates the target location is not a collection but a single element - return Observable.Defer(async () => - Observable.Return(await query.OnceSingleAsync<T>()) - .Select(e => new[] {new FirebaseObject<T>(elementRoot, e)})); - } - - private IDisposable InitializeStreamingSubscription(IObserver<FirebaseEvent<T>> observer) - { - var completeDisposable = Disposable.Create(() => isSyncRunning = false); - - switch (streamingOptions) - { - case StreamingOptions.LatestOnly: - // stream since the latest key - var queryLatest = childQuery.OrderByKey().StartAt(() => GetLatestKey()); - firebaseSubscription = - new FirebaseSubscription<T>(observer, queryLatest, elementRoot, firebaseCache); - firebaseSubscription.ExceptionThrown += StreamingExceptionThrown; - - return new CompositeDisposable(firebaseSubscription.Run(), completeDisposable); - case StreamingOptions.Everything: - // stream everything - var queryAll = childQuery; - firebaseSubscription = new FirebaseSubscription<T>(observer, queryAll, elementRoot, firebaseCache); - firebaseSubscription.ExceptionThrown += StreamingExceptionThrown; - - return new CompositeDisposable(firebaseSubscription.Run(), completeDisposable); - } - - return completeDisposable; - } - - private void SetAndRaise(string key, OfflineEntry obj, - FirebaseEventSource eventSource = FirebaseEventSource.Offline) - { - Database[key] = obj; - subject.OnNext(new FirebaseEvent<T>(key, obj?.Deserialize<T>(), - string.IsNullOrEmpty(obj?.Data) || obj?.Data == "null" - ? FirebaseEventType.Delete - : FirebaseEventType.InsertOrUpdate, eventSource)); - } - - private async void SynchronizeThread() - { - while (isSyncRunning) - { - try - { - var validEntries = Database.Where(e => e.Value != null); - await PullEntriesAsync(validEntries.Where(kvp => kvp.Value.SyncOptions == SyncOptions.Pull)); - - if (pushChanges) - await PushEntriesAsync(validEntries.Where(kvp => - kvp.Value.SyncOptions == SyncOptions.Put || kvp.Value.SyncOptions == SyncOptions.Patch)); - } - catch (Exception ex) - { - SyncExceptionThrown?.Invoke(this, new ExceptionEventArgs(ex)); - } - - await Task.Delay(childQuery.Client.Options.SyncPeriod); - } - } - - private string GetLatestKey() - { - var key = Database.OrderBy(o => o.Key, StringComparer.Ordinal).LastOrDefault().Key ?? string.Empty; - - if (!string.IsNullOrWhiteSpace(key)) - key = key.Substring(0, key.Length - 1) + (char) (key[key.Length - 1] + 1); - - return key; - } - - private async Task PushEntriesAsync(IEnumerable<KeyValuePair<string, OfflineEntry>> pushEntries) - { - var groups = pushEntries.GroupBy(pair => pair.Value.Priority).OrderByDescending(kvp => kvp.Key).ToList(); - - foreach (var group in groups) - { - var tasks = group.OrderBy(kvp => kvp.Value.IsPartial).Select(kvp => - kvp.Value.IsPartial - ? ResetSyncAfterPush(PutHandler.SetAsync(childQuery, kvp.Key, kvp.Value), kvp.Key) - : ResetSyncAfterPush(PutHandler.SetAsync(childQuery, kvp.Key, kvp.Value), kvp.Key, - kvp.Value.Deserialize<T>())); - - try - { - await Task.WhenAll(tasks).WithAggregateException(); - } - catch (Exception ex) - { - SyncExceptionThrown?.Invoke(this, new ExceptionEventArgs(ex)); - } - } - } - - private async Task PullEntriesAsync(IEnumerable<KeyValuePair<string, OfflineEntry>> pullEntries) - { - var taskGroups = pullEntries.GroupBy(pair => pair.Value.Priority).OrderByDescending(kvp => kvp.Key); - - foreach (var group in taskGroups) - { - var tasks = group.Select(pair => - ResetAfterPull( - childQuery.Child(pair.Key == elementRoot ? string.Empty : pair.Key).OnceSingleAsync<T>(), - pair.Key, pair.Value)); - - try - { - await Task.WhenAll(tasks).WithAggregateException(); - } - catch (Exception ex) - { - SyncExceptionThrown?.Invoke(this, new ExceptionEventArgs(ex)); - } - } - } - - private async Task ResetAfterPull(Task<T> task, string key, OfflineEntry entry) - { - await task; - SetAndRaise(key, new OfflineEntry(key, task.Result, entry.Priority, SyncOptions.None), - FirebaseEventSource.OnlinePull); - } - - private async Task ResetSyncAfterPush(Task task, string key, T obj) - { - await ResetSyncAfterPush(task, key); - - if (streamingOptions == StreamingOptions.None) - subject.OnNext(new FirebaseEvent<T>(key, obj, - obj == null ? FirebaseEventType.Delete : FirebaseEventType.InsertOrUpdate, - FirebaseEventSource.OnlinePush)); - } - - private async Task ResetSyncAfterPush(Task task, string key) - { - await task; - ResetSyncOptions(key); - } - - private void ResetSyncOptions(string key) - { - var item = Database[key]; - - if (item.IsPartial) - { - Database.Remove(key); - } - else - { - item.SyncOptions = SyncOptions.None; - Database[key] = item; - } - } - - private void StreamingExceptionThrown(object sender, ExceptionEventArgs<FirebaseException> e) - { - SyncExceptionThrown?.Invoke(this, new ExceptionEventArgs(e.Exception)); - } - - private Tuple<string, string, bool> GenerateFullKey<TProperty>(string key, - Expression<Func<T, TProperty>> propertyGetter, SyncOptions syncOptions) - { - var visitor = new MemberAccessVisitor(); - visitor.Visit(propertyGetter); - var propertyType = typeof(TProperty).GetTypeInfo(); - var prefix = key == string.Empty ? string.Empty : key + "/"; - - // primitive types - if (syncOptions == SyncOptions.Patch && (propertyType.IsPrimitive || - Nullable.GetUnderlyingType(typeof(TProperty)) != null || - typeof(TProperty) == typeof(string))) - return Tuple.Create(prefix + string.Join("/", visitor.PropertyNames.Skip(1).Reverse()), - visitor.PropertyNames.First(), true); - - return Tuple.Create(prefix + string.Join("/", visitor.PropertyNames.Reverse()), - visitor.PropertyNames.First(), false); - } - } -}
\ No newline at end of file diff --git a/FireBase/Offline/SetHandler.cs b/FireBase/Offline/SetHandler.cs deleted file mode 100644 index 6314c3c..0000000 --- a/FireBase/Offline/SetHandler.cs +++ /dev/null @@ -1,19 +0,0 @@ -using System.Threading.Tasks; -using Firebase.Database.Query; - -namespace Firebase.Database.Offline -{ - public class SetHandler<T> : ISetHandler<T> - { - public virtual async Task SetAsync(ChildQuery query, string key, OfflineEntry entry) - { - using (var child = query.Child(key)) - { - if (entry.SyncOptions == SyncOptions.Put) - await child.PutAsync(entry.Data); - else - await child.PatchAsync(entry.Data); - } - } - } -}
\ No newline at end of file diff --git a/FireBase/Offline/StreamingOptions.cs b/FireBase/Offline/StreamingOptions.cs deleted file mode 100644 index a420cbb..0000000 --- a/FireBase/Offline/StreamingOptions.cs +++ /dev/null @@ -1,23 +0,0 @@ -namespace Firebase.Database.Offline -{ - public enum StreamingOptions - { - /// <summary> - /// No realtime streaming. - /// </summary> - None, - - /// <summary> - /// Streaming of only new items - not the existing ones. - /// </summary> - LatestOnly, - - /// <summary> - /// Streaming of all items. This will also pull all existing items on start, so be mindful about the number of items in - /// your DB. - /// When used, consider not setting the <see cref="InitialPullStrategy" /> to - /// <see cref="InitialPullStrategy.Everything" /> because you would pointlessly pull everything twice. - /// </summary> - Everything - } -}
\ No newline at end of file diff --git a/FireBase/Offline/SyncOptions.cs b/FireBase/Offline/SyncOptions.cs deleted file mode 100644 index ca68d0a..0000000 --- a/FireBase/Offline/SyncOptions.cs +++ /dev/null @@ -1,28 +0,0 @@ -namespace Firebase.Database.Offline -{ - /// <summary> - /// Specifies type of sync requested for given data. - /// </summary> - public enum SyncOptions - { - /// <summary> - /// No sync needed for given data. - /// </summary> - None, - - /// <summary> - /// Data should be pulled from firebase. - /// </summary> - Pull, - - /// <summary> - /// Data should be put to firebase. - /// </summary> - Put, - - /// <summary> - /// Data should be patched in firebase. - /// </summary> - Patch - } -}
\ No newline at end of file |