Add Resource Loader for iOS

doric-iOS/Pod/Classes/Resource/DoricBase64Resource.h

@@ -0,0 +1,25 @@
+/*
+ * Copyright [2021] [Doric.Pub]
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+//
+// Created by pengfei.zhou on 2021/10/25.
+//
+
+#import <Foundation/Foundation.h>
+
+#import "DoricResource.h"
+
+@interface DoricBase64Resource : DoricResource
+@end

doric-iOS/Pod/Classes/Resource/DoricBase64Resource.m

@@ -0,0 +1,35 @@
+/*
+ * Copyright [2021] [Doric.Pub]
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+//
+// Created by pengfei.zhou on 2021/10/25.
+//
+
+#import "DoricBase64Resource.h"
+
+
+@implementation DoricBase64Resource
+- (DoricAsyncResult <NSData *> *)fetchRaw {
+    DoricAsyncResult *result = [DoricAsyncResult new];
+    NSString *inString = nil;
+    if ([self.identifier hasPrefix:@"data:image"]) {
+        inString = [self.identifier componentsSeparatedByString:@","].lastObject;
+    }
+    NSData *data = [[NSData alloc] initWithBase64EncodedString:inString
+                                                       options:NSDataBase64DecodingIgnoreUnknownCharacters];
+    [result setupResult:data];
+    return result;
+}
+@end

doric-iOS/Pod/Classes/Resource/DoricBase64ResourceLoader.h

@@ -0,0 +1,25 @@
+/*
+ * Copyright [2021] [Doric.Pub]
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+//
+// Created by pengfei.zhou on 2021/10/25.
+//
+
+#import <Foundation/Foundation.h>
+
+#import "DoricResourceLoader.h"
+
+@interface DoricBase64ResourceLoader : NSObject <DoricResourceLoader>
+@end

doric-iOS/Pod/Classes/Resource/DoricBase64ResourceLoader.m

@@ -0,0 +1,31 @@
+/*
+ * Copyright [2021] [Doric.Pub]
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+//
+// Created by pengfei.zhou on 2021/10/25.
+//
+
+#import "DoricBase64ResourceLoader.h"
+#import "DoricBase64Resource.h"
+
+@implementation DoricBase64ResourceLoader
+- (NSString *)resourceType {
+    return @"base64";
+}
+
+- (__kindof DoricResource *)load:(NSString *)identifier withContext:(DoricContext *)context {
+    return [[DoricBase64Resource alloc] initWithContext:context identifier:identifier];
+}
+@end

doric-iOS/Pod/Classes/Resource/DoricBundleResource.h

@@ -0,0 +1,26 @@
+/*
+ * Copyright [2021] [Doric.Pub]
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+//
+// Created by pengfei.zhou on 2021/10/25.
+//
+
+#import <Foundation/Foundation.h>
+#import "DoricResource.h"
+#import "DoricContext.h"
+
+@interface DoricBundleResource : DoricResource
+@property(nonatomic, strong) NSBundle *bundle;
+@end

doric-iOS/Pod/Classes/Resource/DoricBundleResource.m

@@ -0,0 +1,31 @@
+/*
+ * Copyright [2021] [Doric.Pub]
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+//
+// Created by pengfei.zhou on 2021/10/25.
+//
+
+#import "DoricBundleResource.h"
+
+@implementation DoricBundleResource
+- (DoricAsyncResult <NSData *> *)fetchRaw {
+    DoricAsyncResult *result = [DoricAsyncResult new];
+    NSString *path = [self.bundle bundlePath];
+    NSString *fullPath = [path stringByAppendingPathComponent:self.identifier];
+    NSData *imgData = [[NSData alloc] initWithContentsOfFile:fullPath];
+    [result setupResult:imgData];
+    return result;
+}
+@end

doric-iOS/Pod/Classes/Resource/DoricBundleResourceLoader.h

@@ -0,0 +1,26 @@
+/*
+ * Copyright [2021] [Doric.Pub]
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+//
+// Created by pengfei.zhou on 2021/10/25.
+//
+
+#import <Foundation/Foundation.h>
+
+#import "DoricResourceLoader.h"
+
+@interface DoricBundleResourceLoader : NSObject <DoricResourceLoader>
+- (instancetype)initWithResourceType:(NSString *)resourceType bundle:(NSBundle *)bundle;
+@end

doric-iOS/Pod/Classes/Resource/DoricBundleResourceLoader.m

@@ -0,0 +1,45 @@
+/*
+ * Copyright [2021] [Doric.Pub]
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+//
+// Created by pengfei.zhou on 2021/10/25.
+//
+
+#import <DoricExtensions.h>
+#import "DoricBundleResourceLoader.h"
+#import "DoricBundleResource.h"
+
+@interface DoricBundleResourceLoader ()
+@property(nonatomic, strong) NSBundle *bundle;
+@property(nonatomic, copy) NSString *resourceType;
+@end
+
+@implementation DoricBundleResourceLoader
+- (instancetype)initWithResourceType:(NSString *)resourceType bundle:(NSBundle *)bundle {
+    if (self = [super init]) {
+        _resourceType = resourceType;
+        _bundle = bundle;
+    }
+    return self;
+}
+
+- (__kindof DoricResource *)load:(NSString *)identifier withContext:(DoricContext *)context {
+    return [[[DoricBundleResource alloc] initWithContext:context identifier:identifier]
+            also:^(DoricBundleResource *it) {
+                it.bundle = self.bundle;
+            }];
+}
+
+@end

doric-iOS/Pod/Classes/Resource/DoricLocalResource.h

@@ -0,0 +1,24 @@
+/*
+ * Copyright [2021] [Doric.Pub]
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+//
+// Created by pengfei.zhou on 2021/10/25.
+//
+
+#import <Foundation/Foundation.h>
+#import "DoricResource.h"
+
+@interface DoricLocalResource : DoricResource
+@end

doric-iOS/Pod/Classes/Resource/DoricLocalResource.m

@@ -0,0 +1,30 @@
+/*
+ * Copyright [2021] [Doric.Pub]
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+//
+// Created by pengfei.zhou on 2021/10/25.
+//
+
+#import "DoricLocalResource.h"
+
+
+@implementation DoricLocalResource
+- (DoricAsyncResult <NSData *> *)fetchRaw {
+    DoricAsyncResult *result = [DoricAsyncResult new];
+    NSData *imgData = [[NSData alloc] initWithContentsOfFile:self.identifier];
+    [result setupResult:imgData];
+    return result;
+}
+@end

doric-iOS/Pod/Classes/Resource/DoricLocalResourceLoader.h

@@ -0,0 +1,24 @@
+/*
+ * Copyright [2021] [Doric.Pub]
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+//
+// Created by pengfei.zhou on 2021/10/25.
+//
+
+#import <Foundation/Foundation.h>
+#import "DoricResourceLoader.h"
+
+@interface DoricLocalResourceLoader : NSObject <DoricResourceLoader>
+@end

doric-iOS/Pod/Classes/Resource/DoricLocalResourceLoader.m

@@ -0,0 +1,32 @@
+/*
+ * Copyright [2021] [Doric.Pub]
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+//
+// Created by pengfei.zhou on 2021/10/25.
+//
+
+#import "DoricLocalResourceLoader.h"
+#import "DoricLocalResource.h"
+
+@implementation DoricLocalResourceLoader
+- (NSString *)resourceType {
+    return @"local";
+}
+
+- (__kindof DoricResource *)load:(NSString *)identifier withContext:(DoricContext *)context {
+    return [[DoricLocalResource alloc] initWithContext:context identifier:identifier];
+}
+
+@end

doric-iOS/Pod/Classes/Resource/DoricRemoteResource.h

@@ -0,0 +1,24 @@
+/*
+ * Copyright [2021] [Doric.Pub]
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+//
+// Created by pengfei.zhou on 2021/10/25.
+//
+
+#import <Foundation/Foundation.h>
+#import "DoricResource.h"
+
+@interface DoricRemoteResource : DoricResource
+@end

doric-iOS/Pod/Classes/Resource/DoricRemoteResource.m

@@ -0,0 +1,33 @@
+/*
+ * Copyright [2021] [Doric.Pub]
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+//
+// Created by pengfei.zhou on 2021/10/25.
+//
+
+#import "DoricRemoteResource.h"
+
+
+@implementation DoricRemoteResource
+- (DoricAsyncResult <NSData *> *)fetchRaw {
+    DoricAsyncResult *result = [DoricAsyncResult new];
+    NSURL *url = [NSURL URLWithString:self.identifier];
+    dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
+        NSData *urlData = [NSData dataWithContentsOfURL:url];
+        [result setupResult:urlData];
+    });
+    return result;
+}
+@end

doric-iOS/Pod/Classes/Resource/DoricRemoteResourceLoader.h

@@ -0,0 +1,25 @@
+/*
+ * Copyright [2021] [Doric.Pub]
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+//
+// Created by pengfei.zhou on 2021/10/25.
+//
+
+#import <Foundation/Foundation.h>
+
+#import "DoricResourceLoader.h"
+
+@interface DoricRemoteResourceLoader : NSObject <DoricResourceLoader>
+@end

doric-iOS/Pod/Classes/Resource/DoricRemoteResourceLoader.m

@@ -0,0 +1,31 @@
+/*
+ * Copyright [2021] [Doric.Pub]
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+//
+// Created by pengfei.zhou on 2021/10/25.
+//
+
+#import "DoricRemoteResourceLoader.h"
+#import "DoricRemoteResource.h"
+
+@implementation DoricRemoteResourceLoader
+- (NSString *)resourceType {
+    return @"remote";
+}
+
+- (__kindof DoricResource *)load:(NSString *)identifier withContext:(DoricContext *)context {
+    return [[DoricRemoteResource alloc] initWithContext:context identifier:identifier];
+}
+@end

doric-iOS/Pod/Classes/Resource/DoricResource.h

@@ -0,0 +1,32 @@
+/*
+ * Copyright [2021] [Doric.Pub]
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+//
+// Created by pengfei.zhou on 2021/10/22.
+//
+
+#import <Foundation/Foundation.h>
+#import "DoricAsyncResult.h"
+
+@class DoricContext;
+
+@interface DoricResource : NSObject
+@property(nonatomic, weak) DoricContext *context;
+@property(nonatomic, copy) NSString *identifier;
+
+- (instancetype)initWithContext:(DoricContext *)context identifier:(NSString *)identifier;
+
+- (DoricAsyncResult <NSData *> *)fetchRaw;
+@end

doric-iOS/Pod/Classes/Resource/DoricResource.m

@@ -0,0 +1,33 @@
+/*
+ * Copyright [2021] [Doric.Pub]
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+//
+// Created by pengfei.zhou on 2021/10/22.
+//
+
+#import "DoricResource.h"
+
+@implementation DoricResource
+- (instancetype)initWithContext:(DoricContext *)context identifier:(NSString *)identifier {
+    if (self = [super init]) {
+        _context = context;
+        _identifier = identifier;
+    }
+    return self;
+}
+- (DoricAsyncResult<NSData *> *)fetchRaw {
+    return nil;
+}
+@end

doric-iOS/Pod/Classes/Resource/DoricResourceLoader.h

@@ -0,0 +1,27 @@
+/*
+ * Copyright [2021] [Doric.Pub]
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+//
+// Created by pengfei.zhou on 2021/10/22.
+//
+
+#import <Foundation/Foundation.h>
+#import "DoricResource.h"
+
+@protocol DoricResourceLoader
+@property(nonatomic, readonly) NSString *resourceType;
+
+- (__kindof DoricResource *)load:(NSString *)identifier withContext:(DoricContext *)context;
+@end

doric-iOS/Pod/Classes/Resource/DoricResourceLoaderManager.h

@@ -0,0 +1,31 @@
+/*
+ * Copyright [2021] [Doric.Pub]
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+//
+// Created by pengfei.zhou on 2021/10/22.
+//
+
+#import <Foundation/Foundation.h>
+#import "DoricResourceLoader.h"
+
+@interface DoricResourceLoaderManager : NSObject
+- (void)registerLoader:(id <DoricResourceLoader>)loader;
+
+- (void)unRegisterLoader:(id <DoricResourceLoader>)loader;
+
+- (__kindof DoricResource *)load:(NSString *)identifier
+                withResourceType:(NSString *)resourceType
+                     withContext:(DoricContext *)context;
+@end

doric-iOS/Pod/Classes/Resource/DoricResourceLoaderManager.m

@@ -0,0 +1,49 @@
+/*
+ * Copyright [2021] [Doric.Pub]
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+//
+// Created by pengfei.zhou on 2021/10/22.
+//
+
+#import "DoricResourceLoaderManager.h"
+
+@interface DoricResourceLoaderManager ()
+@property(nonatomic, strong) NSMutableDictionary <NSString *, id <DoricResourceLoader>> *loaders;
+@end
+
+@implementation DoricResourceLoaderManager
+- (instancetype)init {
+    if (self = [super init]) {
+        _loaders = [NSMutableDictionary new];
+    }
+    return self;
+}
+
+- (void)registerLoader:(id <DoricResourceLoader>)loader {
+    self.loaders[loader.resourceType] = loader;
+}
+
+- (void)unRegisterLoader:(id <DoricResourceLoader>)loader {
+    [self.loaders removeObjectForKey:loader.resourceType];
+}
+
+- (__kindof DoricResource *)load:(NSString *)identifier
+                withResourceType:(NSString *)resourceType
+                     withContext:(DoricContext *)context {
+    id <DoricResourceLoader> loader = self.loaders[resourceType];
+    return [loader load:identifier withContext:context];
+}
+
+@end