NSDictionary-Categories

#import "NSDictionary+SafeAccess.h"

@implementation NSDictionary (SafeAccess)

- (NSString*)stringForKey:(id)key
{
    id value = [self objectForKey:key];
    if (value == nil || value == [NSNull null])
    {
        return @"";
    }
    if ([value isKindOfClass:[NSString class]]) {
        return (NSString*)value;
    }
    if ([value isKindOfClass:[NSNumber class]]) {
       return [value stringValue];
    }
    
    return nil;
}

- (NSNumber*)numberForKey:(id)key
{
    id value = [self objectForKey:key];
    if ([value isKindOfClass:[NSNumber class]]) {
        return (NSNumber*)value;
    }
    if ([value isKindOfClass:[NSString class]]) {
        NSNumberFormatter * f = [[NSNumberFormatter alloc] init];
        [f setNumberStyle:NSNumberFormatterDecimalStyle];
        return [f numberFromString:(NSString*)value];
    }
    return nil;
}

- (NSArray*)arrayForKey:(id)key
{
    id value = [self objectForKey:key];
    if (value == nil || value == [NSNull null])
    {
        return nil;
    }
    if ([value isKindOfClass:[NSArray class]])
    {
        return value;
    }
    return nil;
}

- (NSDictionary*)dictionaryForKey:(id)key
{
    id value = [self objectForKey:key];
    if (value == nil || value == [NSNull null])
    {
        return nil;
    }
    if ([value isKindOfClass:[NSDictionary class]])
    {
        return value;
    }
    return nil;
}

- (NSInteger)integerForKey:(id)key
{
    id value = [self objectForKey:key];
    if (value == nil || value == [NSNull null])
    {
        return 0;
    }
    if ([value isKindOfClass:[NSString class]] || [value isKindOfClass:[NSNumber class]])
    {
        return [value integerValue];
    }
    return 0;
}
- (NSUInteger)unsignedIntegerForKey:(id)key{
    id value = [self objectForKey:key];
    if (value == nil || value == [NSNull null])
    {
        return 0;
    }
    if ([value isKindOfClass:[NSString class]] || [value isKindOfClass:[NSNumber class]])
    {
        return [value unsignedIntegerValue];
    }
    return 0;
}
- (BOOL)boolForKey:(id)key
{
    id value = [self objectForKey:key];
    
    if (value == nil || value == [NSNull null])
    {
        return NO;
    }
    if ([value isKindOfClass:[NSNumber class]])
    {
        return [value boolValue];
    }
    if ([value isKindOfClass:[NSString class]])
    {
        return [value boolValue];
    }
    return NO;
}
- (int16_t)int16ForKey:(id)key
{
    id value = [self objectForKey:key];
    
    if (value == nil || value == [NSNull null])
    {
        return 0;
    }
    if ([value isKindOfClass:[NSNumber class]])
    {
        return [value shortValue];
    }
    if ([value isKindOfClass:[NSString class]])
    {
        return [value intValue];
    }
    return 0;
}
- (int32_t)int32ForKey:(id)key
{
    id value = [self objectForKey:key];
    
    if (value == nil || value == [NSNull null])
    {
        return 0;
    }
    if ([value isKindOfClass:[NSNumber class]] || [value isKindOfClass:[NSString class]])
    {
        return [value intValue];
    }
    return 0;
}
- (int64_t)int64ForKey:(id)key
{
    id value = [self objectForKey:key];
    
    if (value == nil || value == [NSNull null])
    {
        return 0;
    }
    if ([value isKindOfClass:[NSNumber class]] || [value isKindOfClass:[NSString class]])
    {
        return [value longLongValue];
    }
    return 0;
}
- (char)charForKey:(id)key{
    id value = [self objectForKey:key];
    
    if (value == nil || value == [NSNull null])
    {
        return 0;
    }
    if ([value isKindOfClass:[NSNumber class]] || [value isKindOfClass:[NSString class]])
    {
        return [value charValue];
    }
    return 0;
}
- (short)shortForKey:(id)key
{
    id value = [self objectForKey:key];
    
    if (value == nil || value == [NSNull null])
    {
        return 0;
    }
    if ([value isKindOfClass:[NSNumber class]])
    {
        return [value shortValue];
    }
    if ([value isKindOfClass:[NSString class]])
    {
        return [value intValue];
    }
    return 0;
}
- (float)floatForKey:(id)key
{
    id value = [self objectForKey:key];
    
    if (value == nil || value == [NSNull null])
    {
        return 0;
    }
    if ([value isKindOfClass:[NSNumber class]] || [value isKindOfClass:[NSString class]])
    {
        return [value floatValue];
    }
    return 0;
}
- (double)doubleForKey:(id)key
{
    id value = [self objectForKey:key];
    
    if (value == nil || value == [NSNull null])
    {
        return 0;
    }
    if ([value isKindOfClass:[NSNumber class]] || [value isKindOfClass:[NSString class]])
    {
        return [value doubleValue];
    }
    return 0;
}
//CG
- (CGFloat)CGFloatForKey:(id)key
{
    CGFloat f = [self[key] doubleValue];
    return f;
}

- (CGPoint)pointForKey:(id)key
{
    CGPoint point = CGPointFromString(self[key]);
    return point;
}
- (CGSize)sizeForKey:(id)key
{
    CGSize size = CGSizeFromString(self[key]);
    return size;
}
- (CGRect)rectForKey:(id)key
{
    CGRect rect = CGRectFromString(self[key]);
    return rect;
}
@end