276 lines
10 KiB
Objective-C
276 lines
10 KiB
Objective-C
//
|
||
// MAJsonUtils.m
|
||
// amap_map
|
||
//
|
||
// Created by shaobin on 2019/2/13.
|
||
// Copyright © 2019 Amap.com. All rights reserved.
|
||
//
|
||
|
||
#import "AMapJsonUtils.h"
|
||
#import <objc/runtime.h>
|
||
#import <objc/message.h>
|
||
#import <CoreLocation/CoreLocation.h>
|
||
#import "AMapConvertUtil.h"
|
||
|
||
@implementation AMapJsonUtils
|
||
|
||
+ (BOOL)isValidJsonValue:(id)value {
|
||
if([value isKindOfClass:NSString.class] ||
|
||
[value isKindOfClass:NSNumber.class] ||
|
||
value == [NSNull null]) {
|
||
return YES;
|
||
}
|
||
|
||
return NO;
|
||
}
|
||
|
||
+ (id)jsonValueFromObject:(id)obj {
|
||
if([self isValidJsonValue:obj]) {
|
||
return obj;
|
||
}
|
||
|
||
if(!obj) {
|
||
return [NSNull null];
|
||
}
|
||
|
||
//常用基本类型判断，not exhausted
|
||
if([obj isKindOfClass:NSDate.class] ||
|
||
[obj isKindOfClass:NSData.class] ||
|
||
[obj isKindOfClass:NSValue.class]) {
|
||
NSString *retStr = [NSString stringWithFormat:@"%@", obj];
|
||
return retStr;
|
||
}
|
||
|
||
if([obj isKindOfClass:NSArray.class]) {
|
||
NSArray *oldArray = (NSArray*)obj;
|
||
NSMutableArray *retArray = [NSMutableArray arrayWithCapacity:[oldArray count]];
|
||
for(id item in oldArray) {
|
||
id jsonValue = [self jsonValueFromObject:item];
|
||
[retArray addObject:jsonValue];
|
||
}
|
||
return retArray;
|
||
}
|
||
|
||
if([obj isKindOfClass:NSDictionary.class]) {
|
||
NSDictionary *oldDict = (NSDictionary *)obj;
|
||
NSMutableDictionary *retDict = [NSMutableDictionary dictionaryWithCapacity:[oldDict count]];
|
||
for(id key in [oldDict allKeys]) {
|
||
id item = [oldDict objectForKey:key];
|
||
id jsonValue = [self jsonValueFromObject:item];
|
||
if(jsonValue) {
|
||
[retDict setObject:jsonValue forKey:key];
|
||
}
|
||
}
|
||
return retDict;
|
||
}
|
||
|
||
NSArray *propertyArray = [self allPropertiesOfClass:[obj class]];
|
||
NSMutableDictionary *returnDict = [NSMutableDictionary dictionaryWithCapacity:propertyArray.count];
|
||
for(NSString *property in propertyArray) {
|
||
id value = [obj valueForKey:property];
|
||
if(value) {
|
||
id jsonValue = [self jsonValueFromObject:value];
|
||
NSString *mappedName = property;
|
||
if(jsonValue) {
|
||
[returnDict setObject:jsonValue forKey:mappedName];
|
||
}
|
||
}
|
||
}
|
||
return returnDict;
|
||
}
|
||
|
||
+ (id)jsonObjectFromModel:(id)model {
|
||
id ret = [self jsonValueFromObject:model];
|
||
if(![NSJSONSerialization isValidJSONObject:ret]) {
|
||
return nil;
|
||
}
|
||
|
||
return ret;
|
||
}
|
||
|
||
+ (id)modelFromDict:(NSDictionary*)dict modelClass:(Class)modelClass {
|
||
if(![dict isKindOfClass:[NSDictionary class]]) {
|
||
NSLog(@"[AMap] the object must be of %@", [NSDictionary class]);
|
||
return nil;
|
||
}
|
||
|
||
if([modelClass isSubclassOfClass:[NSDictionary class]]) {
|
||
return [dict copy];
|
||
}
|
||
|
||
//获取clazz属性列表
|
||
NSArray *propertyArray = [self allPropertiesOfClass:modelClass];
|
||
NSMutableArray* missedProperties = [NSMutableArray array];
|
||
id ret = [[modelClass alloc] init];
|
||
//枚举clazz中的每个属性，然后赋值
|
||
for (NSString *propertyName in propertyArray) {
|
||
NSString *keyName = propertyName;
|
||
id value = [dict objectForKey:keyName];
|
||
//'id'是关键字，服务端返回'id'字段属性名更改为'id_'
|
||
if(!value && [propertyName isEqualToString:@"id_"]) {
|
||
value = [dict objectForKey:@"id"];
|
||
}
|
||
if(!value) {
|
||
[missedProperties addObject:propertyName];
|
||
continue;
|
||
}
|
||
|
||
if(value == [NSNull null]) {
|
||
continue;
|
||
}
|
||
|
||
Class propertyClass = nil;
|
||
objc_property_t property = class_getProperty(modelClass, [propertyName UTF8String]);
|
||
NSString *propertyAttributes = [NSString stringWithCString:property_getAttributes(property) encoding:NSUTF8StringEncoding];
|
||
NSArray *splitPropertyAttributes = [propertyAttributes componentsSeparatedByString:@","];
|
||
if(splitPropertyAttributes.count > 0) {
|
||
NSString *encodeType = splitPropertyAttributes[0];
|
||
if([encodeType hasPrefix:@"T@"]) {
|
||
NSArray *splitEncodeType = [encodeType componentsSeparatedByString:@"\""];
|
||
NSString *className = nil;
|
||
if(splitEncodeType.count > 1) {
|
||
className = splitEncodeType[1];
|
||
}
|
||
if(className) {
|
||
propertyClass = NSClassFromString(className);
|
||
}
|
||
} else if ([encodeType isEqualToString:@"T{CLLocationCoordinate2D=dd}"]) {//经纬度
|
||
//解析经纬度
|
||
CLLocationCoordinate2D coordinate = [self coordinateFromModel:value];
|
||
//使用msgSend直接设置经纬度的属性
|
||
SEL sel = NSSelectorFromString([NSString stringWithFormat:@"set%@:",[propertyName capitalizedString]]);
|
||
((void (*)(id,SEL,CLLocationCoordinate2D))objc_msgSend)(ret,sel,coordinate);
|
||
continue;
|
||
} else if ([encodeType isEqualToString:@"T{CGPoint=dd}"]) {//CGPoint点
|
||
CGPoint point = [AMapConvertUtil pointFromArray:value];
|
||
//使用msgSend直接设置经纬度的属性
|
||
SEL sel = NSSelectorFromString([NSString stringWithFormat:@"set%@:",[propertyName capitalizedString]]);
|
||
((void (*)(id,SEL,CGPoint))objc_msgSend)(ret,sel,point);
|
||
continue;
|
||
}
|
||
}
|
||
//获取property类型后，再处理
|
||
if(propertyClass) {
|
||
if([value isKindOfClass:propertyClass]) {
|
||
//array 需要特殊处理
|
||
if([propertyClass isSubclassOfClass:NSArray.class]) {
|
||
NSString *elementClassSel = [NSString stringWithFormat:@"%@ElementClass", propertyName];
|
||
SEL selector = NSSelectorFromString(elementClassSel);
|
||
if([[ret class] respondsToSelector:selector]) {
|
||
#pragma clang diagnostic push
|
||
#pragma clang diagnostic ignored "-Warc-performSelector-leaks"
|
||
Class elementCls = [[ret class] performSelector:selector];
|
||
#pragma clang diagnostic pop
|
||
NSArray *arr = (NSArray *)value;
|
||
NSMutableArray *mutArr = [NSMutableArray arrayWithCapacity:arr.count];
|
||
for(id item in arr) {
|
||
id newItem = [self modelFromDict:item modelClass:elementCls];
|
||
if(newItem) {
|
||
[mutArr addObject:newItem];
|
||
} else {
|
||
[mutArr addObject:item];
|
||
}
|
||
}
|
||
[ret setValue:mutArr forKey:propertyName];
|
||
} else {
|
||
[ret setValue:value forKey:propertyName];
|
||
}
|
||
} else {
|
||
[ret setValue:value forKey:propertyName];
|
||
}
|
||
} else if([value isKindOfClass:NSDictionary.class]){
|
||
NSDictionary *tempDic = value;
|
||
id model = [self modelFromDict:tempDic modelClass:propertyClass];
|
||
[ret setValue:model forKey:propertyName];
|
||
} else if ([value isKindOfClass:[NSNumber class]] && [NSStringFromClass(propertyClass) isEqualToString:@"UIColor"]) {
|
||
UIColor *color = [AMapConvertUtil colorFromNumber:value];
|
||
[ret setValue:color forKey:propertyName];
|
||
} else {
|
||
[ret setValue:value forKey:propertyName];
|
||
#ifdef DEBUG
|
||
Class valueClaz = [value class];
|
||
NSLog(@"\U0001F913\U0001F913 Warning1: property '%@' of %@ is %@, %@ is received", propertyName, modelClass, propertyClass, valueClaz);
|
||
#endif
|
||
}
|
||
} else { //end of if(propertyClaz) 如@"Ti" @"Tf"
|
||
if([self isValidJsonValue:value]){
|
||
[ret setValue:value forKey:propertyName];
|
||
} else {
|
||
#ifdef DEBUG
|
||
Class valueClaz = [value class];
|
||
NSLog(@"\U0001F913\U0001F913 Warning1: property '%@' of %@ is %@, %@ is received", propertyName, modelClass, propertyClass, valueClaz);
|
||
#endif
|
||
}
|
||
}
|
||
}
|
||
|
||
#ifdef DEBUG
|
||
if([missedProperties count] > 0) {
|
||
NSLog(@"\U0001F913\U0001F913 Warning2: %@ value missed: %@", modelClass, missedProperties);
|
||
}
|
||
#endif
|
||
|
||
NSString *postHookSel = [NSString stringWithFormat:@"postHookWith:"];
|
||
SEL sel = NSSelectorFromString(postHookSel);
|
||
if([ret respondsToSelector:sel]) {
|
||
#pragma clang diagnostic push
|
||
#pragma clang diagnostic ignored "-Warc-performSelector-leaks"
|
||
[ret performSelector:sel withObject:dict];
|
||
#pragma clang diagnostic pop
|
||
}
|
||
|
||
return ret;
|
||
}
|
||
|
||
|
||
//返回array of propertyNames
|
||
+ (NSArray<NSString*> *)allPropertiesOfClass:(Class)cls {
|
||
Class clazz = cls;
|
||
|
||
NSMutableArray *mutArr = [[NSMutableArray alloc] init];
|
||
while(clazz != [NSObject class]) {
|
||
unsigned int count = 0;
|
||
objc_property_t* properties = class_copyPropertyList(clazz, &count);
|
||
|
||
for (int i = 0; i < count ; i++) {
|
||
objc_property_t prop = properties[i];
|
||
NSString *propertyName = [NSString stringWithCString:property_getName(prop) encoding:NSUTF8StringEncoding];
|
||
[mutArr addObject:propertyName];
|
||
}
|
||
|
||
if(properties) {
|
||
free(properties);
|
||
}
|
||
|
||
clazz = class_getSuperclass(clazz);
|
||
}
|
||
|
||
return mutArr;
|
||
}
|
||
|
||
|
||
//从数据model中解析经纬度
|
||
+ (CLLocationCoordinate2D)coordinateFromModel:(id)model {
|
||
CLLocationCoordinate2D location = kCLLocationCoordinate2DInvalid;
|
||
if ([model isKindOfClass:[NSArray class]]) {
|
||
return [AMapConvertUtil coordinateFromArray:model];
|
||
} else if ([model isKindOfClass:[NSString class]]) {//后台经纬度字符串习惯是（经度，维度）的格式
|
||
NSString *coordStr = model;
|
||
NSArray *array = [coordStr componentsSeparatedByString:@","];
|
||
array = [[array reverseObjectEnumerator] allObjects];//这里需要逆置
|
||
return [AMapConvertUtil coordinateFromArray:array];
|
||
} else if ([model isKindOfClass:[NSDictionary class]]) {
|
||
NSDictionary *dict = model;
|
||
NSNumber *latitudeNum = [dict objectForKey:@"latitude"];
|
||
NSNumber *longitudeNum = [dict objectForKey:@"longitude"];
|
||
if (latitudeNum && longitudeNum) {
|
||
location = CLLocationCoordinate2DMake([latitudeNum doubleValue], [longitudeNum doubleValue]);
|
||
} else {
|
||
NSLog(@"经纬度参数异常，解析为无效经纬度");
|
||
}
|
||
}
|
||
return location;
|
||
}
|
||
|
||
@end
|