//

//  NSObject+Properties.h

//

//  Created by YouXianMing on 14-9-4.

//  Copyright (c) 2014年 YouXianMing. All rights reserved.

//

#import <Foundation/Foundation.h>

@interface NSObject (Properties)

@property (nonatomic, strong) NSDictionary *mapDictionary;

- (void)setDataDictionary:(NSDictionary*)dataDictionary;

- (NSDictionary *)dataDictionary;

@end

//

//  NSObject+Properties.m

//

//  Created by YouXianMing on 14-9-4.

//  Copyright (c) 2014年 YouXianMing. All rights reserved.

//

#import "NSObject+Properties.h"

#import <objc/runtime.h>

@implementation NSObject (Properties)

#pragma runtime - 动态添加了一个属性，map属性

static char mapDictionaryFlag;

- (void)setMapDictionary:(NSDictionary *)mapDictionary

{

    objc_setAssociatedObject(self, &mapDictionaryFlag, mapDictionary, OBJC_ASSOCIATION_RETAIN_NONATOMIC);

}

- (NSDictionary *)mapDictionary

{

    return objc_getAssociatedObject(self, &mapDictionaryFlag);

}

#pragma public - 公开方法

- (void)setDataDictionary:(NSDictionary*)dataDictionary

{

    [self setAttributes:[self mapDictionary:self.mapDictionary dataDictionary:dataDictionary]

                    obj:self];

}

- (NSDictionary *)dataDictionary

{

    // 获取属性列表

    NSArray *properties = [self propertyNames:[self class]];

    // 根据属性列表获取属性值

    return [self propertiesAndValuesDictionary:self properties:properties];

}

#pragma private - 私有方法

// 通过属性名字拼凑setter方法

- (SEL)getSetterSelWithAttibuteName:(NSString*)attributeName

{

    NSString *capital = [[attributeName substringToIndex:] uppercaseString];

    NSString *setterSelStr = \

    [NSString stringWithFormat:@"set%@%@:", capital, [attributeName substringFromIndex:]];

    return NSSelectorFromString(setterSelStr);

}

// 通过字典设置属性值

- (void)setAttributes:(NSDictionary*)dataDic obj:(id)obj

{

    // 获取所有的key值

    NSEnumerator *keyEnum = [dataDic keyEnumerator];

    // 字典的key值(与Model的属性值一一对应)

    id attributeName = nil;

    while ((attributeName = [keyEnum nextObject]))

    {

        // 获取拼凑的setter方法

        SEL sel = [obj getSetterSelWithAttibuteName:attributeName];

        // 验证setter方法是否能回应

        if ([obj respondsToSelector:sel])

        {

            id value      = nil;

            id tmpValue   = dataDic[attributeName];

            if([tmpValue isKindOfClass:[NSNull class]])

            {

                // 如果是NSNull类型，则value值为空

                value = nil;

            }

            else

            {

                value = tmpValue;

            }

            // 执行setter方法

            [obj performSelectorOnMainThread:sel

                                  withObject:value

                               waitUntilDone:[NSThread isMainThread]];

        }

    }

}

// 获取一个类的属性名字列表

- (NSArray*)propertyNames:(Class)class

{

    NSMutableArray  *propertyNames = [[NSMutableArray alloc] init];

    unsigned int     propertyCount = ;

    objc_property_t *properties    = class_copyPropertyList(class, &propertyCount);

    for (unsigned int i = ; i < propertyCount; ++i)

    {

        objc_property_t  property = properties[i];

        const char      *name     = property_getName(property);

        [propertyNames addObject:[NSString stringWithUTF8String:name]];

    }

    free(properties);

    return propertyNames;

}

// 根据属性数组获取该属性的值

- (NSDictionary*)propertiesAndValuesDictionary:(id)obj properties:(NSArray *)properties

{

    NSMutableDictionary *propertiesValuesDic = [NSMutableDictionary dictionary];

    for (NSString *property in properties)

    {

        SEL getSel = NSSelectorFromString(property);

        if ([obj respondsToSelector:getSel])

        {

            NSMethodSignature  *signature  = nil;

            signature                      = [obj methodSignatureForSelector:getSel];

            NSInvocation       *invocation = [NSInvocation invocationWithMethodSignature:signature];

            [invocation setTarget:obj];

            [invocation setSelector:getSel];

            NSObject * __unsafe_unretained valueObj = nil;

            [invocation invoke];

            [invocation getReturnValue:&valueObj];

            //assign to @"" string

            if (valueObj == nil)

            {

                valueObj = @"";

            }

            propertiesValuesDic[property] = valueObj;

        }

    }

    return propertiesValuesDic;

}

// 根据map值替换掉键值

- (NSDictionary *)mapDictionary:(NSDictionary *)map dataDictionary:(NSDictionary *)data

{

    if (map && data)

    {

        // 拷贝字典

        NSMutableDictionary *newDataDic = [NSMutableDictionary dictionaryWithDictionary:data];

        // 获取所有map键值

        NSArray *allKeys                = [map allKeys];

        for (NSString *oldKey in allKeys)

        {

            // 获取到value

            id value = [newDataDic objectForKey:oldKey];

            // 如果有这个value

            if (value)

            {

                NSString *newKey = [map objectForKey:oldKey];

                [newDataDic removeObjectForKey:oldKey];

                [newDataDic setObject:value forKey:newKey];

            }

        }

        return newDataDic;

    }

    else

    {

        return data;

    }

}

@end

//

//  AppDelegate.m

//  Runtime

//

//  Created by YouXianMing on 14-9-5.

//  Copyright (c) 2014年 YouXianMing. All rights reserved.

//

#import "AppDelegate.h"

#import "NSObject+Properties.h"

#import "Model.h"

@implementation AppDelegate

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions

{

    // 初始化model

    Model *model = [Model new];

    // 设置map值

    model.mapDictionary = @{@"id": @"memberID"};

    // 通过字典赋值

    model.dataDictionary = @{@"name"        : @"YouXianMing",

                             @"age"         : @,

                             @"addressInfo" : @{@"HuBei": @"WeiHan"},

                             @"events"      : @[@"One", @"Two", @"Three"],

                             @"id"          : @""};

    // 打印出属性值

    NSLog(@"%@", model.dataDictionary);

    return YES;

}

@end