Files
RestKit/Code/ObjectMapping/RKObjectManager.m

342 lines
12 KiB
Objective-C

//
// RKObjectManager.m
// RestKit
//
// Created by Jeremy Ellison on 8/14/09.
// Copyright 2009 Two Toasters
//
// 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.
//
#import "RKObjectManager.h"
#import "RKObjectSerializer.h"
#import "../CoreData/RKManagedObjectStore.h"
#import "../CoreData/RKManagedObjectLoader.h"
#import "../Support/Support.h"
#import "RKErrorMessage.h"
NSString* const RKDidEnterOfflineModeNotification = @"RKDidEnterOfflineModeNotification";
NSString* const RKDidEnterOnlineModeNotification = @"RKDidEnterOnlineModeNotification";
//////////////////////////////////
// Shared Instance
static RKObjectManager* sharedManager = nil;
///////////////////////////////////
@implementation RKObjectManager
@synthesize client = _client;
@synthesize objectStore = _objectStore;
@synthesize router = _router;
@synthesize mappingProvider = _mappingProvider;
@synthesize serializationMIMEType = _serializationMIMEType;
@synthesize inferMappingsFromObjectTypes = _inferMappingsFromObjectTypes;
- (id)initWithBaseURL:(NSString*)baseURL {
self = [super init];
if (self) {
_mappingProvider = [RKObjectMappingProvider new];
_router = [RKObjectRouter new];
_client = [[RKClient clientWithBaseURL:baseURL] retain];
_onlineState = RKObjectManagerOnlineStateUndetermined;
_inferMappingsFromObjectTypes = NO;
self.acceptMIMEType = RKMIMETypeJSON;
self.serializationMIMEType = RKMIMETypeFormURLEncoded;
// Setup default error message mappings
RKObjectMapping* errorMapping = [RKObjectMapping mappingForClass:[RKErrorMessage class]];
[errorMapping mapKeyPath:@"" toAttribute:@"errorMessage"];
[_mappingProvider setMapping:errorMapping forKeyPath:@"error"];
[_mappingProvider setMapping:errorMapping forKeyPath:@"errors"];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(reachabilityChanged:)
name:RKReachabilityStateChangedNotification
object:_client.baseURLReachabilityObserver];
}
return self;
}
+ (RKObjectManager*)sharedManager {
return sharedManager;
}
+ (void)setSharedManager:(RKObjectManager*)manager {
[manager retain];
[sharedManager release];
sharedManager = manager;
}
+ (RKObjectManager*)objectManagerWithBaseURL:(NSString*)baseURL {
RKObjectManager* manager = [[[self alloc] initWithBaseURL:baseURL] autorelease];
if (nil == sharedManager) {
[RKObjectManager setSharedManager:manager];
}
return manager;
}
- (void)dealloc {
[[NSNotificationCenter defaultCenter] removeObserver:self];
[_router release];
_router = nil;
[_client release];
_client = nil;
[_objectStore release];
_objectStore = nil;
[_serializationMIMEType release];
_serializationMIMEType = nil;
[_mappingProvider release];
_mappingProvider = nil;
[super dealloc];
}
- (BOOL)isOnline {
return (_onlineState == RKObjectManagerOnlineStateConnected);
}
- (BOOL)isOffline {
return ![self isOnline];
}
- (void)reachabilityChanged:(NSNotification*)notification {
BOOL isHostReachable = [self.client.baseURLReachabilityObserver isNetworkReachable];
_onlineState = isHostReachable ? RKObjectManagerOnlineStateConnected : RKObjectManagerOnlineStateDisconnected;
if (isHostReachable) {
[[NSNotificationCenter defaultCenter] postNotificationName:RKDidEnterOnlineModeNotification object:self];
} else {
[[NSNotificationCenter defaultCenter] postNotificationName:RKDidEnterOfflineModeNotification object:self];
}
}
- (void)setAcceptMIMEType:(NSString*)MIMEType {
[_client setValue:MIMEType forHTTPHeaderField:@"Accept"];
}
- (NSString*)acceptMIMEType {
return [self.client.HTTPHeaders valueForKey:@"Accept"];
}
/////////////////////////////////////////////////////////////
#pragma mark - Object Collection Loaders
- (RKObjectLoader*)objectLoaderWithResourcePath:(NSString*)resourcePath delegate:(id<RKObjectLoaderDelegate>)delegate {
RKObjectLoader* objectLoader = nil;
Class managedObjectLoaderClass = NSClassFromString(@"RKManagedObjectLoader");
if (self.objectStore && managedObjectLoaderClass) {
objectLoader = [managedObjectLoaderClass loaderWithResourcePath:resourcePath objectManager:self delegate:delegate];
} else {
objectLoader = [RKObjectLoader loaderWithResourcePath:resourcePath objectManager:self delegate:delegate];
}
return objectLoader;
}
- (RKObjectLoader*)loadObjectsAtResourcePath:(NSString*)resourcePath delegate:(id<RKObjectLoaderDelegate>)delegate {
RKObjectLoader* loader = [self objectLoaderWithResourcePath:resourcePath delegate:delegate];
loader.method = RKRequestMethodGET;
[loader send];
return loader;
}
- (RKObjectLoader*)loadObjectsAtResourcePath:(NSString*)resourcePath objectMapping:(RKObjectMapping*)objectMapping delegate:(id<RKObjectLoaderDelegate>)delegate {
RKObjectLoader* loader = [self objectLoaderWithResourcePath:resourcePath delegate:delegate];
loader.method = RKRequestMethodGET;
loader.objectMapping = objectMapping;
[loader send];
return loader;
}
/////////////////////////////////////////////////////////////
#pragma mark - Object Instance Loaders
- (RKObjectLoader*)objectLoaderForObject:(id<NSObject>)object method:(RKRequestMethod)method delegate:(id<RKObjectLoaderDelegate>)delegate {
NSString* resourcePath = [self.router resourcePathForObject:object method:method];
RKObjectLoader* loader = [self objectLoaderWithResourcePath:resourcePath delegate:delegate];
loader.method = method;
loader.sourceObject = object;
loader.targetObject = object;
loader.serializationMIMEType = self.serializationMIMEType;
loader.serializationMapping = [self.mappingProvider serializationMappingForClass:[object class]];
if (self.inferMappingsFromObjectTypes) {
RKObjectMapping* objectMapping = [self.mappingProvider objectMappingForClass:[object class]];
RKLogDebug(@"Auto-selected object mapping %@ for object of type %@", objectMapping, NSStringFromClass([object class]));
loader.objectMapping = objectMapping;
}
return loader;
}
- (RKObjectLoader*)getObject:(id<NSObject>)object delegate:(id<RKObjectLoaderDelegate>)delegate {
RKObjectLoader* loader = [self objectLoaderForObject:object method:RKRequestMethodGET delegate:delegate];
[loader send];
return loader;
}
- (RKObjectLoader*)postObject:(id<NSObject>)object delegate:(id<RKObjectLoaderDelegate>)delegate {
RKObjectLoader* loader = [self objectLoaderForObject:object method:RKRequestMethodPOST delegate:delegate];
[loader send];
return loader;
}
- (RKObjectLoader*)putObject:(id<NSObject>)object delegate:(id<RKObjectLoaderDelegate>)delegate {
RKObjectLoader* loader = [self objectLoaderForObject:object method:RKRequestMethodPUT delegate:delegate];
[loader send];
return loader;
}
- (RKObjectLoader*)deleteObject:(id<NSObject>)object delegate:(id<RKObjectLoaderDelegate>)delegate {
RKObjectLoader* loader = [self objectLoaderForObject:object method:RKRequestMethodDELETE delegate:delegate];
[loader send];
return loader;
}
#if NS_BLOCKS_AVAILABLE
#pragma mark - Block Configured Object Loaders
- (RKObjectLoader*)loadObjectsAtResourcePath:(NSString*)resourcePath delegate:(id<RKObjectLoaderDelegate>)delegate block:(void(^)(RKObjectLoader*))block {
RKObjectLoader* loader = [self objectLoaderWithResourcePath:resourcePath delegate:delegate];
loader.method = RKRequestMethodGET;
// Yield to the block for setup
block(loader);
[loader send];
return loader;
}
- (RKObjectLoader*)sendObject:(id<NSObject>)object delegate:(id<RKObjectLoaderDelegate>)delegate block:(void(^)(RKObjectLoader*))block {
RKObjectLoader* loader = [self objectLoaderWithResourcePath:nil delegate:delegate];
loader.sourceObject = object;
loader.targetObject = object;
loader.serializationMIMEType = self.serializationMIMEType;
loader.serializationMapping = [self.mappingProvider serializationMappingForClass:[object class]];
// Yield to the block for setup
block(loader);
if (loader.resourcePath == nil) {
loader.resourcePath = [self.router resourcePathForObject:object method:loader.method];
}
if (loader.objectMapping == nil) {
if (self.inferMappingsFromObjectTypes) {
RKObjectMapping* objectMapping = [self.mappingProvider objectMappingForClass:[object class]];
RKLogDebug(@"Auto-selected object mapping %@ for object of type %@", objectMapping, NSStringFromClass([object class]));
loader.objectMapping = objectMapping;
}
}
[loader send];
return loader;
}
- (RKObjectLoader*)sendObject:(id<NSObject>)object method:(RKRequestMethod)method delegate:(id<RKObjectLoaderDelegate>)delegate block:(void(^)(RKObjectLoader*))block {
return [self sendObject:object delegate:delegate block:^(RKObjectLoader* loader) {
loader.method = method;
block(loader);
}];
}
- (RKObjectLoader*)getObject:(id<NSObject>)object delegate:(id<RKObjectLoaderDelegate>)delegate block:(void(^)(RKObjectLoader*))block {
return [self sendObject:object method:RKRequestMethodGET delegate:delegate block:block];
}
- (RKObjectLoader*)postObject:(id<NSObject>)object delegate:(id<RKObjectLoaderDelegate>)delegate block:(void(^)(RKObjectLoader*))block {
return [self sendObject:object method:RKRequestMethodPOST delegate:delegate block:block];
}
- (RKObjectLoader*)putObject:(id<NSObject>)object delegate:(id<RKObjectLoaderDelegate>)delegate block:(void(^)(RKObjectLoader*))block {
return [self sendObject:object method:RKRequestMethodPUT delegate:delegate block:block];
}
- (RKObjectLoader*)deleteObject:(id<NSObject>)object delegate:(id<RKObjectLoaderDelegate>)delegate block:(void(^)(RKObjectLoader*))block {
return [self sendObject:object method:RKRequestMethodDELETE delegate:delegate block:block];
}
#endif // NS_BLOCKS_AVAILABLE
#pragma mark - Object Instance Loaders for Non-nested JSON
- (RKObjectLoader*)getObject:(id<NSObject>)object mapResponseWith:(RKObjectMapping*)objectMapping delegate:(id<RKObjectLoaderDelegate>)delegate {
RKObjectLoader* loader = [self objectLoaderForObject:object method:RKRequestMethodGET delegate:delegate];
if ([object isMemberOfClass:[objectMapping objectClass]]) {
loader.targetObject = object;
} else {
loader.targetObject = nil;
}
loader.objectMapping = objectMapping;
[loader send];
return loader;
}
- (RKObjectLoader*)postObject:(id<NSObject>)object mapResponseWith:(RKObjectMapping*)objectMapping delegate:(id<RKObjectLoaderDelegate>)delegate {
RKObjectLoader* loader = [self objectLoaderForObject:object method:RKRequestMethodPOST delegate:delegate];
if ([object isMemberOfClass:[objectMapping objectClass]]) {
loader.targetObject = object;
} else {
loader.targetObject = nil;
}
loader.objectMapping = objectMapping;
[loader send];
return loader;
}
- (RKObjectLoader*)putObject:(id<NSObject>)object mapResponseWith:(RKObjectMapping*)objectMapping delegate:(id<RKObjectLoaderDelegate>)delegate {
RKObjectLoader* loader = [self objectLoaderForObject:object method:RKRequestMethodPUT delegate:delegate];
if ([object isMemberOfClass:[objectMapping objectClass]]) {
loader.targetObject = object;
} else {
loader.targetObject = nil;
}
loader.objectMapping = objectMapping;
[loader send];
return loader;
}
- (RKObjectLoader*)deleteObject:(id<NSObject>)object mapResponseWith:(RKObjectMapping*)objectMapping delegate:(id<RKObjectLoaderDelegate>)delegate {
RKObjectLoader* loader = [self objectLoaderForObject:object method:RKRequestMethodDELETE delegate:delegate];
if ([object isMemberOfClass:[objectMapping objectClass]]) {
loader.targetObject = object;
} else {
loader.targetObject = nil;
}
loader.objectMapping = objectMapping;
[loader send];
return loader;
}
- (RKRequestCache *)requestCache {
return self.client.requestCache;
}
- (RKRequestQueue *)requestQueue {
return self.client.requestQueue;
}
@end