[Swift3] Use thread safe manager dictionary (#5610)

modules/swagger-codegen/src/main/resources/swift3/AlamofireImplementations.mustache

@@ -13,8 +13,38 @@ class AlamofireRequestBuilderFactory: RequestBuilderFactory {
     }
 }
 
+private struct SynchronizedDictionary<K: Hashable, V> {
+
+    private var dictionary = [K: V]()
+    private let queue = DispatchQueue(
+        label: "SynchronizedDictionary",
+        qos: DispatchQoS.userInitiated,
+        attributes: [DispatchQueue.Attributes.concurrent],
+        autoreleaseFrequency: DispatchQueue.AutoreleaseFrequency.inherit,
+        target: nil
+    )
+
+    public subscript(key: K) -> V? {
+        get {
+            var value: V?
+
+            queue.sync {
+                value = self.dictionary[key]
+            }
+
+            return value
+        }
+        set {
+            queue.sync(flags: DispatchWorkItemFlags.barrier) {
+                self.dictionary[key] = newValue
+            }
+        }
+    }
+
+}
+
 // Store manager to retain its reference
-private var managerStore: [String: Alamofire.SessionManager] = [:]
+private var managerStore = SynchronizedDictionary<String, Alamofire.SessionManager>()
 
 open class AlamofireRequestBuilder<T>: RequestBuilder<T> {
     required public init(method: String, URLString: String, parameters: [String : Any]?, isBody: Bool, headers: [String : String] = [:]) {
@@ -112,7 +142,7 @@ open class AlamofireRequestBuilder<T>: RequestBuilder<T> {
         }
 
         let cleanupRequest = {
-            _ = managerStore.removeValue(forKey: managerId)
+            managerStore[managerId] = nil
         }
 
         let validatedRequest = request.validate()

samples/client/petstore/swift3/default/.swagger-codegen/VERSION

@@ -0,0 +1 @@
+2.3.0-SNAPSHOT

samples/client/petstore/swift3/default/PetstoreClient/Classes/Swaggers/AlamofireImplementations.swift

@@ -13,8 +13,38 @@ class AlamofireRequestBuilderFactory: RequestBuilderFactory {
     }
 }
 
+private struct SynchronizedDictionary<K: Hashable, V> {
+
+    private var dictionary = [K: V]()
+    private let queue = DispatchQueue(
+        label: "SynchronizedDictionary",
+        qos: DispatchQoS.userInitiated,
+        attributes: [DispatchQueue.Attributes.concurrent],
+        autoreleaseFrequency: DispatchQueue.AutoreleaseFrequency.inherit,
+        target: nil
+    )
+
+    public subscript(key: K) -> V? {
+        get {
+            var value: V?
+
+            queue.sync {
+                value = self.dictionary[key]
+            }
+
+            return value
+        }
+        set {
+            queue.sync(flags: DispatchWorkItemFlags.barrier) {
+                self.dictionary[key] = newValue
+            }
+        }
+    }
+
+}
+
 // Store manager to retain its reference
-private var managerStore: [String: Alamofire.SessionManager] = [:]
+private var managerStore = SynchronizedDictionary<String, Alamofire.SessionManager>()
 
 open class AlamofireRequestBuilder<T>: RequestBuilder<T> {
     required public init(method: String, URLString: String, parameters: [String : Any]?, isBody: Bool, headers: [String : String] = [:]) {
@@ -112,7 +142,7 @@ open class AlamofireRequestBuilder<T>: RequestBuilder<T> {
         }
 
         let cleanupRequest = {
-            _ = managerStore.removeValue(forKey: managerId)
+            managerStore[managerId] = nil
         }
 
         let validatedRequest = request.validate()

samples/client/petstore/swift3/promisekit/.swagger-codegen/VERSION

@@ -0,0 +1 @@
+2.3.0-SNAPSHOT

samples/client/petstore/swift3/promisekit/PetstoreClient/Classes/Swaggers/AlamofireImplementations.swift

@@ -13,8 +13,38 @@ class AlamofireRequestBuilderFactory: RequestBuilderFactory {
     }
 }
 
+private struct SynchronizedDictionary<K: Hashable, V> {
+
+    private var dictionary = [K: V]()
+    private let queue = DispatchQueue(
+        label: "SynchronizedDictionary",
+        qos: DispatchQoS.userInitiated,
+        attributes: [DispatchQueue.Attributes.concurrent],
+        autoreleaseFrequency: DispatchQueue.AutoreleaseFrequency.inherit,
+        target: nil
+    )
+
+    public subscript(key: K) -> V? {
+        get {
+            var value: V?
+
+            queue.sync {
+                value = self.dictionary[key]
+            }
+
+            return value
+        }
+        set {
+            queue.sync(flags: DispatchWorkItemFlags.barrier) {
+                self.dictionary[key] = newValue
+            }
+        }
+    }
+
+}
+
 // Store manager to retain its reference
-private var managerStore: [String: Alamofire.SessionManager] = [:]
+private var managerStore = SynchronizedDictionary<String, Alamofire.SessionManager>()
 
 open class AlamofireRequestBuilder<T>: RequestBuilder<T> {
     required public init(method: String, URLString: String, parameters: [String : Any]?, isBody: Bool, headers: [String : String] = [:]) {
@@ -112,7 +142,7 @@ open class AlamofireRequestBuilder<T>: RequestBuilder<T> {
         }
 
         let cleanupRequest = {
-            _ = managerStore.removeValue(forKey: managerId)
+            managerStore[managerId] = nil
         }
 
         let validatedRequest = request.validate()

samples/client/petstore/swift3/rxswift/.swagger-codegen/VERSION

@@ -0,0 +1 @@
+2.3.0-SNAPSHOT

samples/client/petstore/swift3/rxswift/PetstoreClient/Classes/Swaggers/AlamofireImplementations.swift

@@ -13,8 +13,38 @@ class AlamofireRequestBuilderFactory: RequestBuilderFactory {
     }
 }
 
+private struct SynchronizedDictionary<K: Hashable, V> {
+
+    private var dictionary = [K: V]()
+    private let queue = DispatchQueue(
+        label: "SynchronizedDictionary",
+        qos: DispatchQoS.userInitiated,
+        attributes: [DispatchQueue.Attributes.concurrent],
+        autoreleaseFrequency: DispatchQueue.AutoreleaseFrequency.inherit,
+        target: nil
+    )
+
+    public subscript(key: K) -> V? {
+        get {
+            var value: V?
+
+            queue.sync {
+                value = self.dictionary[key]
+            }
+
+            return value
+        }
+        set {
+            queue.sync(flags: DispatchWorkItemFlags.barrier) {
+                self.dictionary[key] = newValue
+            }
+        }
+    }
+
+}
+
 // Store manager to retain its reference
-private var managerStore: [String: Alamofire.SessionManager] = [:]
+private var managerStore = SynchronizedDictionary<String, Alamofire.SessionManager>()
 
 open class AlamofireRequestBuilder<T>: RequestBuilder<T> {
     required public init(method: String, URLString: String, parameters: [String : Any]?, isBody: Bool, headers: [String : String] = [:]) {
@@ -112,7 +142,7 @@ open class AlamofireRequestBuilder<T>: RequestBuilder<T> {
         }
 
         let cleanupRequest = {
-            _ = managerStore.removeValue(forKey: managerId)
+            managerStore[managerId] = nil
         }
 
         let validatedRequest = request.validate()