//
|
// MJProperty.m
|
// MJExtensionExample
|
//
|
// Created by MJ Lee on 15/4/17.
|
// Copyright (c) 2015年 小码哥. All rights reserved.
|
//
|
|
#import "MJProperty.h"
|
#import "MJFoundation.h"
|
#import "MJExtensionConst.h"
|
#import <objc/message.h>
|
|
@interface MJProperty()
|
@property (strong, nonatomic) NSMutableDictionary *propertyKeysDict;
|
@property (strong, nonatomic) NSMutableDictionary *objectClassInArrayDict;
|
@end
|
|
@implementation MJProperty
|
|
#pragma mark - 懒加载
|
- (NSMutableDictionary *)propertyKeysDict
|
{
|
if (!_propertyKeysDict) {
|
_propertyKeysDict = [NSMutableDictionary dictionary];
|
}
|
return _propertyKeysDict;
|
}
|
|
- (NSMutableDictionary *)objectClassInArrayDict
|
{
|
if (!_objectClassInArrayDict) {
|
_objectClassInArrayDict = [NSMutableDictionary dictionary];
|
}
|
return _objectClassInArrayDict;
|
}
|
|
#pragma mark - 缓存
|
+ (instancetype)cachedPropertyWithProperty:(objc_property_t)property
|
{
|
MJProperty *propertyObj = objc_getAssociatedObject(self, property);
|
if (propertyObj == nil) {
|
propertyObj = [[self alloc] init];
|
propertyObj.property = property;
|
objc_setAssociatedObject(self, property, propertyObj, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
|
}
|
return propertyObj;
|
}
|
|
#pragma mark - 公共方法
|
- (void)setProperty:(objc_property_t)property
|
{
|
_property = property;
|
|
MJExtensionAssertParamNotNil(property);
|
|
// 1.属性名
|
_name = @(property_getName(property));
|
|
// 2.成员类型
|
NSString *attrs = @(property_getAttributes(property));
|
NSUInteger dotLoc = [attrs rangeOfString:@","].location;
|
NSString *code = nil;
|
NSUInteger loc = 1;
|
if (dotLoc == NSNotFound) { // 没有,
|
code = [attrs substringFromIndex:loc];
|
} else {
|
code = [attrs substringWithRange:NSMakeRange(loc, dotLoc - loc)];
|
}
|
_type = [MJPropertyType cachedTypeWithCode:code];
|
}
|
|
/**
|
* 获得成员变量的值
|
*/
|
- (id)valueForObject:(id)object
|
{
|
if (self.type.KVCDisabled) return [NSNull null];
|
return [object valueForKey:self.name];
|
}
|
|
/**
|
* 设置成员变量的值
|
*/
|
- (void)setValue:(id)value forObject:(id)object
|
{
|
if (self.type.KVCDisabled || value == nil) return;
|
[object setValue:value forKey:self.name];
|
}
|
|
/**
|
* 通过字符串key创建对应的keys
|
*/
|
- (NSArray *)propertyKeysWithStringKey:(NSString *)stringKey
|
{
|
if (stringKey.length == 0) return nil;
|
|
NSMutableArray *propertyKeys = [NSMutableArray array];
|
// 如果有多级映射
|
NSArray *oldKeys = [stringKey componentsSeparatedByString:@"."];
|
|
for (NSString *oldKey in oldKeys) {
|
NSUInteger start = [oldKey rangeOfString:@"["].location;
|
if (start != NSNotFound) { // 有索引的key
|
NSString *prefixKey = [oldKey substringToIndex:start];
|
NSString *indexKey = prefixKey;
|
if (prefixKey.length) {
|
MJPropertyKey *propertyKey = [[MJPropertyKey alloc] init];
|
propertyKey.name = prefixKey;
|
[propertyKeys addObject:propertyKey];
|
|
indexKey = [oldKey stringByReplacingOccurrencesOfString:prefixKey withString:@""];
|
}
|
|
/** 解析索引 **/
|
// 元素
|
NSArray *cmps = [[indexKey stringByReplacingOccurrencesOfString:@"[" withString:@""] componentsSeparatedByString:@"]"];
|
for (NSInteger i = 0; i<cmps.count - 1; i++) {
|
MJPropertyKey *subPropertyKey = [[MJPropertyKey alloc] init];
|
subPropertyKey.type = MJPropertyKeyTypeArray;
|
subPropertyKey.name = cmps[i];
|
[propertyKeys addObject:subPropertyKey];
|
}
|
} else { // 没有索引的key
|
MJPropertyKey *propertyKey = [[MJPropertyKey alloc] init];
|
propertyKey.name = oldKey;
|
[propertyKeys addObject:propertyKey];
|
}
|
}
|
|
return propertyKeys;
|
}
|
|
/** 对应着字典中的key */
|
- (void)setOriginKey:(id)originKey forClass:(Class)c
|
{
|
if ([originKey isKindOfClass:[NSString class]]) { // 字符串类型的key
|
NSArray *propertyKeys = [self propertyKeysWithStringKey:originKey];
|
if (propertyKeys.count) {
|
[self setPorpertyKeys:@[propertyKeys] forClass:c];
|
}
|
} else if ([originKey isKindOfClass:[NSArray class]]) {
|
NSMutableArray *keyses = [NSMutableArray array];
|
for (NSString *stringKey in originKey) {
|
NSArray *propertyKeys = [self propertyKeysWithStringKey:stringKey];
|
if (propertyKeys.count) {
|
[keyses addObject:propertyKeys];
|
}
|
}
|
if (keyses.count) {
|
[self setPorpertyKeys:keyses forClass:c];
|
}
|
}
|
}
|
|
/** 对应着字典中的多级key */
|
- (void)setPorpertyKeys:(NSArray *)propertyKeys forClass:(Class)c
|
{
|
if (propertyKeys.count == 0) return;
|
self.propertyKeysDict[NSStringFromClass(c)] = propertyKeys;
|
}
|
- (NSArray *)propertyKeysForClass:(Class)c
|
{
|
return self.propertyKeysDict[NSStringFromClass(c)];
|
}
|
|
/** 模型数组中的模型类型 */
|
- (void)setObjectClassInArray:(Class)objectClass forClass:(Class)c
|
{
|
if (!objectClass) return;
|
self.objectClassInArrayDict[NSStringFromClass(c)] = objectClass;
|
}
|
- (Class)objectClassInArrayForClass:(Class)c
|
{
|
return self.objectClassInArrayDict[NSStringFromClass(c)];
|
}
|
@end
|
