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-rw-r--r--FireBase/Offline/ConcurrentOfflineDatabase.cs207
-rw-r--r--FireBase/Offline/DatabaseExtensions.cs195
-rw-r--r--FireBase/Offline/ISetHandler.cs11
-rw-r--r--FireBase/Offline/InitialPullStrategy.cs23
-rw-r--r--FireBase/Offline/Internals/MemberAccessVisitor.cs51
-rw-r--r--FireBase/Offline/OfflineCacheAdapter.cs165
-rw-r--r--FireBase/Offline/OfflineDatabase.cs201
-rw-r--r--FireBase/Offline/OfflineEntry.cs116
-rw-r--r--FireBase/Offline/RealtimeDatabase.cs459
-rw-r--r--FireBase/Offline/SetHandler.cs24
-rw-r--r--FireBase/Offline/StreamingOptions.cs21
-rw-r--r--FireBase/Offline/SyncOptions.cs28
12 files changed, 0 insertions, 1501 deletions
diff --git a/FireBase/Offline/ConcurrentOfflineDatabase.cs b/FireBase/Offline/ConcurrentOfflineDatabase.cs
deleted file mode 100644
index 226892d..0000000
--- a/FireBase/Offline/ConcurrentOfflineDatabase.cs
+++ /dev/null
@@ -1,207 +0,0 @@
-namespace Firebase.Database.Offline
-{
- using System;
- using System.Collections;
- using System.Collections.Concurrent;
- using System.Collections.Generic;
- using System.IO;
- using System.Linq;
-
- using LiteDB;
-
- /// <summary>
- /// The offline database.
- /// </summary>
- public class ConcurrentOfflineDatabase : IDictionary<string, OfflineEntry>
- {
- private readonly LiteRepository db;
- private readonly ConcurrentDictionary<string, OfflineEntry> ccache;
-
- /// <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 = this.GetFileName(itemType.ToString());
- if(fullName.Length > 100)
- {
- fullName = fullName.Substring(0, 100);
- }
-
- BsonMapper mapper = BsonMapper.Global;
- mapper.Entity<OfflineEntry>().Id(o => o.Key);
-
- string root = Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData);
- string filename = fullName + filenameModifier + ".db";
- var path = Path.Combine(root, filename);
- this.db = new LiteRepository(new LiteDatabase(path, mapper));
-
- var cache = db.Database
- .GetCollection<OfflineEntry>()
- .FindAll()
- .ToDictionary(o => o.Key, o => o);
-
- this.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 => this.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 => this.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 => this.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
- {
- return this.ccache[key];
- }
-
- set
- {
- this.ccache.AddOrUpdate(key, value, (k, existing) => value);
- this.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 this.ccache.GetEnumerator();
- }
-
- IEnumerator IEnumerable.GetEnumerator()
- {
- return this.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)
- {
- this.Add(item.Key, item.Value);
- }
-
- /// <summary>
- /// Removes all items from the <see cref="T:System.Collections.Generic.ICollection`1"/>.
- /// </summary>
- public void Clear()
- {
- this.ccache.Clear();
- this.db.Delete<OfflineEntry>(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 this.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)
- {
- this.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 this.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 this.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)
- {
- this.ccache.AddOrUpdate(key, value, (k, existing) => value);
- this.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)
- {
- this.ccache.TryRemove(key, out OfflineEntry _);
- return this.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 this.ccache.TryGetValue(key, out value);
- }
-
- private string GetFileName(string fileName)
- {
- var invalidChars = new[] { '`', '[', ',', '=' };
- foreach(char c in invalidChars.Concat(System.IO.Path.GetInvalidFileNameChars()).Distinct())
- {
- fileName = fileName.Replace(c, '_');
- }
-
- return fileName;
- }
- }
-}
diff --git a/FireBase/Offline/DatabaseExtensions.cs b/FireBase/Offline/DatabaseExtensions.cs
deleted file mode 100644
index 4b04314..0000000
--- a/FireBase/Offline/DatabaseExtensions.cs
+++ /dev/null
@@ -1,195 +0,0 @@
-namespace Firebase.Database.Offline
-{
- using System;
- using System.Collections;
- using System.Collections.Generic;
- using System.Linq.Expressions;
- using System.Reflection;
- using Firebase.Database.Query;
-
- 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);
- }
- }
-}
diff --git a/FireBase/Offline/ISetHandler.cs b/FireBase/Offline/ISetHandler.cs
deleted file mode 100644
index 477c36b..0000000
--- a/FireBase/Offline/ISetHandler.cs
+++ /dev/null
@@ -1,11 +0,0 @@
-namespace Firebase.Database.Offline
-{
- using Firebase.Database.Query;
-
- using System.Threading.Tasks;
-
- public interface ISetHandler<in T>
- {
- Task SetAsync(ChildQuery query, string key, OfflineEntry entry);
- }
-}
diff --git a/FireBase/Offline/InitialPullStrategy.cs b/FireBase/Offline/InitialPullStrategy.cs
deleted file mode 100644
index 70f6b8c..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,
- }
-}
diff --git a/FireBase/Offline/Internals/MemberAccessVisitor.cs b/FireBase/Offline/Internals/MemberAccessVisitor.cs
deleted file mode 100644
index 1f7cb11..0000000
--- a/FireBase/Offline/Internals/MemberAccessVisitor.cs
+++ /dev/null
@@ -1,51 +0,0 @@
-namespace Firebase.Database.Offline.Internals
-{
- using System.Collections.Generic;
- using System.Linq.Expressions;
- using System.Reflection;
-
- using Newtonsoft.Json;
-
- public class MemberAccessVisitor : ExpressionVisitor
- {
- private readonly IList<string> propertyNames = new List<string>();
-
- private bool wasDictionaryAccess;
-
- public IEnumerable<string> PropertyNames => this.propertyNames;
-
- public MemberAccessVisitor()
- {
- }
-
- public override Expression Visit(Expression expr)
- {
- if (expr?.NodeType == ExpressionType.MemberAccess)
- {
- if (this.wasDictionaryAccess)
- {
- this.wasDictionaryAccess = false;
- }
- else
- {
- var memberExpr = (MemberExpression)expr;
- var jsonAttr = memberExpr.Member.GetCustomAttribute<JsonPropertyAttribute>();
-
- this.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();
- this.propertyNames.Add(e.DynamicInvoke().ToString());
- this.wasDictionaryAccess = callExpr.Arguments[0].NodeType == ExpressionType.MemberAccess;
- }
- }
-
- return base.Visit(expr);
- }
- }
-}
diff --git a/FireBase/Offline/OfflineCacheAdapter.cs b/FireBase/Offline/OfflineCacheAdapter.cs
deleted file mode 100644
index a3761a0..0000000
--- a/FireBase/Offline/OfflineCacheAdapter.cs
+++ /dev/null
@@ -1,165 +0,0 @@
-namespace Firebase.Database.Offline
-{
- using System;
- using System.Collections;
- using System.Collections.Generic;
- using System.Linq;
-
- 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 int Count => this.database.Count;
-
- public bool IsSynchronized { get; }
-
- public object SyncRoot { get; }
-
- public bool IsReadOnly => this.database.IsReadOnly;
-
- object IDictionary.this[object key]
- {
- get
- {
- return this.database[key.ToString()].Deserialize<T>();
- }
-
- set
- {
- var keyString = key.ToString();
- if (this.database.ContainsKey(keyString))
- {
- this.database[keyString] = new OfflineEntry(keyString, value, this.database[keyString].Priority, this.database[keyString].SyncOptions);
- }
- else
- {
- this.database[keyString] = new OfflineEntry(keyString, value, 1, SyncOptions.None);
- }
- }
- }
-
- public ICollection<string> Keys => this.database.Keys;
-
- ICollection IDictionary.Values { get; }
-
- ICollection IDictionary.Keys { get; }
-
- public ICollection<T> Values => this.database.Values.Select(o => o.Deserialize<T>()).ToList();
-
- public T this[string key]
- {
- get
- {
- return this.database[key].Deserialize<T>();
- }
-
- set
- {
- if (this.database.ContainsKey(key))
- {
- this.database[key] = new OfflineEntry(key, value, this.database[key].Priority, this.database[key].SyncOptions);
- }
- else
- {
- this.database[key] = new OfflineEntry(key, value, 1, SyncOptions.None);
- }
- }
- }
-
- public bool Contains(object key)
- {
- return this.ContainsKey(key.ToString());
- }
-
- IDictionaryEnumerator IDictionary.GetEnumerator()
- {
- throw new NotImplementedException();
- }
-
- public void Remove(object key)
- {
- this.Remove(key.ToString());
- }
-
- public bool IsFixedSize => false;
-
- public IEnumerator<KeyValuePair<string, T>> GetEnumerator()
- {
- return this.database.Select(d => new KeyValuePair<string, T>(d.Key, d.Value.Deserialize<T>())).GetEnumerator();
- }
-
- IEnumerator IEnumerable.GetEnumerator()
- {
- return this.GetEnumerator();
- }
-
- public void Add(KeyValuePair<string, T> item)
- {
- this.Add(item.Key, item.Value);
- }
-
- public void Add(object key, object value)
- {
- this.Add(key.ToString(), (T)value);
- }
-
- public void Clear()
- {
- this.database.Clear();
- }
-
- public bool Contains(KeyValuePair<string, T> item)
- {
- return this.ContainsKey(item.Key);
- }
-
- public void CopyTo(KeyValuePair<string, T>[] array, int arrayIndex)
- {
- throw new NotImplementedException();
- }
-
- public bool Remove(KeyValuePair<string, T> item)
- {
- return this.database.Remove(item.Key);
- }
-
- public void Add(string key, T value)
- {
- this.database.Add(key, new OfflineEntry(key, value, 1, SyncOptions.None));
- }
-
- public bool ContainsKey(string key)
- {
- return this.database.ContainsKey(key);
- }
-
- public bool Remove(string key)
- {
- return this.database.Remove(key);
- }
-
- public bool TryGetValue(string key, out T value)
- {
- OfflineEntry val;
-
- if (this.database.TryGetValue(key, out val))
- {
- value = val.Deserialize<T>();
- return true;
- }
-
- value = default(T);
- return false;
- }
- }
-}
diff --git a/FireBase/Offline/OfflineDatabase.cs b/FireBase/Offline/OfflineDatabase.cs
deleted file mode 100644
index 9cebf9c..0000000
--- a/FireBase/Offline/OfflineDatabase.cs
+++ /dev/null
@@ -1,201 +0,0 @@
-namespace Firebase.Database.Offline
-{
- using System;
- using System.Collections;
- using System.Collections.Generic;
- using System.IO;
- using System.Linq;
-
- using LiteDB;
-
- /// <summary>
- /// The offline database.
- /// </summary>
- public class OfflineDatabase : IDictionary<string, OfflineEntry>
- {
- private readonly LiteRepository db;
- private readonly IDictionary<string, OfflineEntry> cache;
-
- /// <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 = this.GetFileName(itemType.ToString());
- if(fullName.Length > 100)
- {
- fullName = fullName.Substring(0, 100);
- }
-
- BsonMapper mapper = BsonMapper.Global;
- mapper.Entity<OfflineEntry>().Id(o => o.Key);
-
- string root = Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData);
- string filename = fullName + filenameModifier + ".db";
- var path = Path.Combine(root, filename);
- this.db = new LiteRepository(new LiteDatabase(path, mapper));
-
- this.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 => this.cache.Count;
-
- /// <summary>
- /// Gets a value indicating whether this is a read-only collection.
- /// </summary>
- public bool IsReadOnly => this.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 => this.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 => this.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
- {
- return this.cache[key];
- }
-
- set
- {
- this.cache[key] = value;
- this.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 this.cache.GetEnumerator();
- }
-
- IEnumerator IEnumerable.GetEnumerator()
- {
- return this.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)
- {
- this.Add(item.Key, item.Value);
- }
-
- /// <summary>
- /// Removes all items from the <see cref="T:System.Collections.Generic.ICollection`1"/>.
- /// </summary>
- public void Clear()
- {
- this.cache.Clear();
- this.db.Delete<OfflineEntry>(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 this.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)
- {
- this.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 this.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 this.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)
- {
- this.cache.Add(key, value);
- this.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)
- {
- this.cache.Remove(key);
- return this.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 this.cache.TryGetValue(key, out value);
- }
-
- private string GetFileName(string fileName)
- {
- var invalidChars = new[] { '`', '[', ',', '=' };
- foreach(char c in invalidChars.Concat(System.IO.Path.GetInvalidFileNameChars()).Distinct())
- {
- fileName = fileName.Replace(c, '_');
- }
-
- return fileName;
- }
- }
-}
diff --git a/FireBase/Offline/OfflineEntry.cs b/FireBase/Offline/OfflineEntry.cs
deleted file mode 100644
index 3b862cb..0000000
--- a/FireBase/Offline/OfflineEntry.cs
+++ /dev/null
@@ -1,116 +0,0 @@
-namespace Firebase.Database.Offline
-{
- using System;
-
- using Newtonsoft.Json;
-
- /// <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)
- {
- this.Key = key;
- this.Priority = priority;
- this.Data = data;
- this.Timestamp = DateTime.UtcNow;
- this.SyncOptions = syncOptions;
- this.IsPartial = isPartial;
-
- this.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)(this.dataInstance ?? (this.dataInstance = JsonConvert.DeserializeObject<T>(this.Data)));
- }
- }
-}
diff --git a/FireBase/Offline/RealtimeDatabase.cs b/FireBase/Offline/RealtimeDatabase.cs
deleted file mode 100644
index 61a7010..0000000
--- a/FireBase/Offline/RealtimeDatabase.cs
+++ /dev/null
@@ -1,459 +0,0 @@
-namespace Firebase.Database.Offline
-{
- using System;
- using System.Collections.Generic;
- using System.Linq;
- using System.Reactive.Linq;
- using System.Reactive.Subjects;
- using System.Threading;
- using System.Threading.Tasks;
-
- using Firebase.Database.Extensions;
- using Firebase.Database.Query;
- using Firebase.Database.Streaming;
- using System.Reactive.Threading.Tasks;
- using System.Linq.Expressions;
- using Internals;
- using Newtonsoft.Json;
- using System.Reflection;
- using System.Reactive.Disposables;
-
- /// <summary>
- /// The real-time Database which synchronizes online and offline data.
- /// </summary>
- /// <typeparam name="T"> Type of entities. </typeparam>
- public partial class RealtimeDatabase<T> : IDisposable where T : class
- {
- private readonly ChildQuery childQuery;
- private readonly string elementRoot;
- private readonly StreamingOptions streamingOptions;
- private readonly Subject<FirebaseEvent<T>> subject;
- private readonly InitialPullStrategy initialPullStrategy;
- private readonly bool pushChanges;
- private readonly FirebaseCache<T> firebaseCache;
-
- private bool isSyncRunning;
- private IObservable<FirebaseEvent<T>> observable;
- private FirebaseSubscription<T> firebaseSubscription;
-
- /// <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;
- this.Database = offlineDatabaseFactory(typeof(T), filenameModifier);
- this.firebaseCache = new FirebaseCache<T>(new OfflineCacheAdapter<string, T>(this.Database));
- this.subject = new Subject<FirebaseEvent<T>>();
-
- this.PutHandler = setHandler ?? new SetHandler<T>();
-
- this.isSyncRunning = true;
- Task.Factory.StartNew(this.SynchronizeThread, CancellationToken.None, TaskCreationOptions.LongRunning, TaskScheduler.Default);
- }
-
- /// <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>
- /// Gets the backing Database.
- /// </summary>
- public IDictionary<string, OfflineEntry> Database
- {
- get;
- private set;
- }
-
- public ISetHandler<T> PutHandler
- {
- private get;
- set;
- }
-
- /// <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)
- {
- this.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 = this.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 = this.firebaseCache.PushData("/" + fullKey.Item1, serializedObject).First();
-
- if (!this.Database.ContainsKey(key) || this.Database[key].SyncOptions != SyncOptions.Patch && this.Database[key].SyncOptions != SyncOptions.Put)
- {
- this.Database[fullKey.Item1] = new OfflineEntry(fullKey.Item1, value, serializedObject, priority, syncOptions, true);
- }
-
- this.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 (!this.Database.ContainsKey(key))
- {
- this.Database[key] = new OfflineEntry(key, null, priority, SyncOptions.Pull);
- }
- else if (this.Database[key].SyncOptions == SyncOptions.None)
- {
- // pull only if push isn't pending
- this.Database[key].SyncOptions = SyncOptions.Pull;
- }
- }
-
- /// <summary>
- /// Fetches everything from the remote database.
- /// </summary>
- public async Task PullAsync()
- {
- var existingEntries = await this.childQuery
- .OnceAsync<T>()
- .ToObservable()
- .RetryAfterDelay<IReadOnlyCollection<FirebaseObject<T>>, FirebaseException>(
- this.childQuery.Client.Options.SyncPeriod,
- ex => ex.StatusCode == System.Net.HttpStatusCode.OK) // OK implies the request couldn't complete due to network error.
- .Select(e => this.ResetDatabaseFromInitial(e, false))
- .SelectMany(e => e)
- .Do(e =>
- {
- this.Database[e.Key] = new OfflineEntry(e.Key, e.Object, 1, SyncOptions.None);
- this.subject.OnNext(new FirebaseEvent<T>(e.Key, e.Object, FirebaseEventType.InsertOrUpdate, FirebaseEventSource.OnlinePull));
- })
- .ToList();
-
- // Remove items not stored online
- foreach (var item in this.Database.Keys.Except(existingEntries.Select(f => f.Key)).ToList())
- {
- this.Database.Remove(item);
- this.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 this.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 (!this.isSyncRunning)
- {
- this.isSyncRunning = true;
- Task.Factory.StartNew(this.SynchronizeThread, CancellationToken.None, TaskCreationOptions.LongRunning, TaskScheduler.Default);
- }
-
- if (this.observable == null)
- {
- var initialData = Observable.Return(FirebaseEvent<T>.Empty(FirebaseEventSource.Offline));
- if(this.Database.TryGetValue(this.elementRoot, out OfflineEntry 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(this.Database.Count > 0)
- {
- initialData = this.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();
- }
-
- this.observable = initialData
- .Merge(this.subject)
- .Merge(this.GetInitialPullObservable()
- .RetryAfterDelay<IReadOnlyCollection<FirebaseObject<T>>, FirebaseException>(
- this.childQuery.Client.Options.SyncPeriod,
- ex => ex.StatusCode == System.Net.HttpStatusCode.OK) // OK implies the request couldn't complete due to network error.
- .Select(e => this.ResetDatabaseFromInitial(e))
- .SelectMany(e => e)
- .Do(this.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 => this.InitializeStreamingSubscription(observer))))
- .Do(next => { }, e => this.observable = null, () => this.observable = null)
- .Replay()
- .RefCount();
- }
-
- return this.observable;
- }
-
- public void Dispose()
- {
- this.subject.OnCompleted();
- this.firebaseSubscription?.Dispose();
- }
-
- private IReadOnlyCollection<FirebaseObject<T>> ResetDatabaseFromInitial(IReadOnlyCollection<FirebaseObject<T>> collection, bool onlyWhenInitialEverything = true)
- {
- if (onlyWhenInitialEverything && this.initialPullStrategy != InitialPullStrategy.Everything)
- {
- return collection;
- }
-
- // items which are in local db, but not in the online collection
- var extra = this.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 (!this.Database.ContainsKey(e.Key) || this.Database[e.Key].SyncOptions == SyncOptions.None || this.Database[e.Key].SyncOptions == SyncOptions.Pull || this.initialPullStrategy != InitialPullStrategy.Everything)
- {
- this.Database[e.Key] = new OfflineEntry(e.Key, e.Object, 1, SyncOptions.None);
- }
- }
-
- private IObservable<IReadOnlyCollection<FirebaseObject<T>>> GetInitialPullObservable()
- {
- FirebaseQuery query;
- switch (this.initialPullStrategy)
- {
- case InitialPullStrategy.MissingOnly:
- query = this.childQuery.OrderByKey().StartAt(() => this.GetLatestKey());
- break;
- case InitialPullStrategy.Everything:
- query = this.childQuery;
- break;
- case InitialPullStrategy.None:
- default:
- return Observable.Empty<IReadOnlyCollection<FirebaseEvent<T>>>();
- }
-
- if (string.IsNullOrWhiteSpace(this.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>(this.elementRoot, e) }));
- }
-
- private IDisposable InitializeStreamingSubscription(IObserver<FirebaseEvent<T>> observer)
- {
- var completeDisposable = Disposable.Create(() => this.isSyncRunning = false);
-
- switch (this.streamingOptions)
- {
- case StreamingOptions.LatestOnly:
- // stream since the latest key
- var queryLatest = this.childQuery.OrderByKey().StartAt(() => this.GetLatestKey());
- this.firebaseSubscription = new FirebaseSubscription<T>(observer, queryLatest, this.elementRoot, this.firebaseCache);
- this.firebaseSubscription.ExceptionThrown += this.StreamingExceptionThrown;
-
- return new CompositeDisposable(this.firebaseSubscription.Run(), completeDisposable);
- case StreamingOptions.Everything:
- // stream everything
- var queryAll = this.childQuery;
- this.firebaseSubscription = new FirebaseSubscription<T>(observer, queryAll, this.elementRoot, this.firebaseCache);
- this.firebaseSubscription.ExceptionThrown += this.StreamingExceptionThrown;
-
- return new CompositeDisposable(this.firebaseSubscription.Run(), completeDisposable);
- default:
- break;
- }
-
- return completeDisposable;
- }
-
- private void SetAndRaise(string key, OfflineEntry obj, FirebaseEventSource eventSource = FirebaseEventSource.Offline)
- {
- this.Database[key] = obj;
- this.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 (this.isSyncRunning)
- {
- try
- {
- var validEntries = this.Database.Where(e => e.Value != null);
- await this.PullEntriesAsync(validEntries.Where(kvp => kvp.Value.SyncOptions == SyncOptions.Pull));
-
- if (this.pushChanges)
- {
- await this.PushEntriesAsync(validEntries.Where(kvp => kvp.Value.SyncOptions == SyncOptions.Put || kvp.Value.SyncOptions == SyncOptions.Patch));
- }
- }
- catch (Exception ex)
- {
- this.SyncExceptionThrown?.Invoke(this, new ExceptionEventArgs(ex));
- }
-
- await Task.Delay(this.childQuery.Client.Options.SyncPeriod);
- }
- }
-
- private string GetLatestKey()
- {
- var key = this.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 ?
- this.ResetSyncAfterPush(this.PutHandler.SetAsync(this.childQuery, kvp.Key, kvp.Value), kvp.Key) :
- this.ResetSyncAfterPush(this.PutHandler.SetAsync(this.childQuery, kvp.Key, kvp.Value), kvp.Key, kvp.Value.Deserialize<T>()));
-
- try
- {
- await Task.WhenAll(tasks).WithAggregateException();
- }
- catch (Exception ex)
- {
- this.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 => this.ResetAfterPull(this.childQuery.Child(pair.Key == this.elementRoot ? string.Empty : pair.Key).OnceSingleAsync<T>(), pair.Key, pair.Value));
-
- try
- {
- await Task.WhenAll(tasks).WithAggregateException();
- }
- catch (Exception ex)
- {
- this.SyncExceptionThrown?.Invoke(this, new ExceptionEventArgs(ex));
- }
- }
- }
-
- private async Task ResetAfterPull(Task<T> task, string key, OfflineEntry entry)
- {
- await task;
- this.SetAndRaise(key, new OfflineEntry(key, task.Result, entry.Priority, SyncOptions.None), FirebaseEventSource.OnlinePull);
- }
-
- private async Task ResetSyncAfterPush(Task task, string key, T obj)
- {
- await this.ResetSyncAfterPush(task, key);
-
- if (this.streamingOptions == StreamingOptions.None)
- {
- this.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;
- this.ResetSyncOptions(key);
- }
-
- private void ResetSyncOptions(string key)
- {
- var item = this.Database[key];
-
- if (item.IsPartial)
- {
- this.Database.Remove(key);
- }
- else
- {
- item.SyncOptions = SyncOptions.None;
- this.Database[key] = item;
- }
- }
-
- private void StreamingExceptionThrown(object sender, ExceptionEventArgs<FirebaseException> e)
- {
- this.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);
- }
-
- }
-}
diff --git a/FireBase/Offline/SetHandler.cs b/FireBase/Offline/SetHandler.cs
deleted file mode 100644
index 1efa7b6..0000000
--- a/FireBase/Offline/SetHandler.cs
+++ /dev/null
@@ -1,24 +0,0 @@
-namespace Firebase.Database.Offline
-{
- using Firebase.Database.Query;
-
- using System.Threading.Tasks;
-
- 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);
- }
- }
- }
- }
-}
diff --git a/FireBase/Offline/StreamingOptions.cs b/FireBase/Offline/StreamingOptions.cs
deleted file mode 100644
index 9ed4e54..0000000
--- a/FireBase/Offline/StreamingOptions.cs
+++ /dev/null
@@ -1,21 +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
- }
-}
diff --git a/FireBase/Offline/SyncOptions.cs b/FireBase/Offline/SyncOptions.cs
deleted file mode 100644
index b2f382a..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
- }
-}
generated by cgit v1.2.3-54-g00ecf (git 2.45.0) at 2024-06-26 18:25:46 +0000