Implementation of Object Mapping 2.0 design:

* Removed RestKit from inheritance hierarchy
  * Mappings are implemented as concrete classes
  * Mapper is much more flexible & powerful
  * Much more robust error handling
  * Serialization is reimplemented as an object mapping operation
  * Added ability to serialize to JSON natively
  * Reworked Core Data integration
  * Simplified the codebase substantially

Code/ObjectMapping/RKObjectRouter.m

@@ -0,0 +1,95 @@
+//
+//  RKDynamicRouter.m
+//  RestKit
+//
+//  Created by Blake Watters on 10/18/10.
+//  Copyright 2010 Two Toasters. All rights reserved.
+//
+
+#import "RKObjectRouter.h"
+#import "RKClient.h"
+#import "NSDictionary+RKRequestSerialization.h"
+
+@implementation RKObjectRouter
+
+- (id)init {
+	if ((self = [super init])) {
+		_routes = [[NSMutableDictionary alloc] init];
+	}
+	
+	return self;
+}
+
+- (void)dealloc {
+	[_routes release];
+	[super dealloc];
+}
+
+- (void)routeClass:(Class)class toResourcePath:(NSString*)resourcePath forMethodName:(NSString*)methodName {
+	NSString* className = NSStringFromClass(class);
+	if (nil == [_routes objectForKey:className]) {
+		NSMutableDictionary* dictionary = [NSMutableDictionary dictionary];
+		[_routes setObject:dictionary forKey:className];		 
+	}
+	
+	NSMutableDictionary* classRoutes = [_routes objectForKey:className];
+	if ([classRoutes objectForKey:methodName]) {
+		[NSException raise:nil format:@"A route has already been registered for class '%@' and HTTP method '%@'", className, methodName];
+	}
+	
+	[classRoutes setValue:resourcePath forKey:methodName];
+}
+
+- (NSString*)HTTPVerbForMethod:(RKRequestMethod)method {
+	switch (method) {
+		case RKRequestMethodGET:
+			return @"GET";
+			break;
+		case RKRequestMethodPOST:
+			return @"POST";
+			break;
+		case RKRequestMethodPUT:
+			return @"PUT";
+			break;
+		case RKRequestMethodDELETE:
+			return @"DELETE";
+			break;
+		default:
+			return nil;
+			break;
+	}
+}
+
+// Public
+
+- (void)routeClass:(Class)class toResourcePath:(NSString*)resourcePath {
+	[self routeClass:class toResourcePath:resourcePath forMethodName:@"ANY"];
+}
+
+- (void)routeClass:(Class)class toResourcePath:(NSString*)resourcePath forMethod:(RKRequestMethod)method {
+	NSString* methodName = [self HTTPVerbForMethod:method];
+	[self routeClass:class toResourcePath:resourcePath forMethodName:methodName];
+}
+
+#pragma mark RKRouter
+
+- (NSString*)resourcePathForObject:(NSObject*)object method:(RKRequestMethod)method {
+	NSString* methodName = [self HTTPVerbForMethod:method];
+	NSString* className  = NSStringFromClass([object class]);
+	NSDictionary* classRoutes = [_routes objectForKey:className];
+	
+	NSString* resourcePath = nil;
+	if ((resourcePath = [classRoutes objectForKey:methodName])) {
+		return RKMakePathWithObject(resourcePath, object);
+	}
+	
+	if ((resourcePath = [classRoutes objectForKey:@"ANY"])) {
+		return RKMakePathWithObject(resourcePath, object);
+	}
+	
+	[NSException raise:nil format:@"Unable to find a routable path for object of type '%@' for HTTP Method '%@'", className, methodName];
+	
+	return nil;
+}
+
+@end