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author | matt handler <matt.handler@gmail.com> | 2011-04-25 02:21:36 -0400 |
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committer | matt handler <matt.handler@gmail.com> | 2011-04-25 02:21:36 -0400 |
commit | ab0c357216564967ccbb900923ead3830a13752b (patch) | |
tree | 1b3aa223efb245d47b9c6ba785d2db4e911fd62a /Classes/Source/JSON/CJSONSerializer.m | |
parent | 0c7a7586d3c2ab22adb15f032b0a69c962aaeeaf (diff) | |
download | piccast-app-ab0c357216564967ccbb900923ead3830a13752b.tar.gz piccast-app-ab0c357216564967ccbb900923ead3830a13752b.zip |
added json stuff, sources are loading but not connected to any sensical database or nothing... coming together. next hard bit is going to be the animation when things update
Diffstat (limited to 'Classes/Source/JSON/CJSONSerializer.m')
-rw-r--r-- | Classes/Source/JSON/CJSONSerializer.m | 342 |
1 files changed, 342 insertions, 0 deletions
diff --git a/Classes/Source/JSON/CJSONSerializer.m b/Classes/Source/JSON/CJSONSerializer.m new file mode 100644 index 0000000..952b3c2 --- /dev/null +++ b/Classes/Source/JSON/CJSONSerializer.m @@ -0,0 +1,342 @@ +// +// CJSONSerializer.m +// TouchCode +// +// Created by Jonathan Wight on 12/07/2005. +// Copyright 2005 toxicsoftware.com. All rights reserved. +// +// Permission is hereby granted, free of charge, to any person +// obtaining a copy of this software and associated documentation +// files (the "Software"), to deal in the Software without +// restriction, including without limitation the rights to use, +// copy, modify, merge, publish, distribute, sublicense, and/or sell +// copies of the Software, and to permit persons to whom the +// Software is furnished to do so, subject to the following +// conditions: +// +// The above copyright notice and this permission notice shall be +// included in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES +// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT +// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, +// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING +// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR +// OTHER DEALINGS IN THE SOFTWARE. +// + +#import "CJSONSerializer.h" + +#import "JSONRepresentation.h" + +static NSData *kNULL = NULL; +static NSData *kFalse = NULL; +static NSData *kTrue = NULL; + +@implementation CJSONSerializer + ++ (void)initialize + { + NSAutoreleasePool *thePool = [[NSAutoreleasePool alloc] init]; + + if (self == [CJSONSerializer class]) + { + if (kNULL == NULL) + kNULL = [[NSData alloc] initWithBytesNoCopy:(void *)"null" length:4 freeWhenDone:NO]; + if (kFalse == NULL) + kFalse = [[NSData alloc] initWithBytesNoCopy:(void *)"false" length:5 freeWhenDone:NO]; + if (kTrue == NULL) + kTrue = [[NSData alloc] initWithBytesNoCopy:(void *)"true" length:4 freeWhenDone:NO]; + + [thePool release]; + } + } + ++ (id)serializer + { + return([[[self alloc] init] autorelease]); + } + +- (BOOL)isValidJSONObject:(id)inObject + { + if ([inObject isKindOfClass:[NSNull class]]) + { + return(YES); + } + else if ([inObject isKindOfClass:[NSNumber class]]) + { + return(YES); + } + else if ([inObject isKindOfClass:[NSString class]]) + { + return(YES); + } + else if ([inObject isKindOfClass:[NSArray class]]) + { + return(YES); + } + else if ([inObject isKindOfClass:[NSDictionary class]]) + { + return(YES); + } + else if ([inObject isKindOfClass:[NSData class]]) + { + return(YES); + } + else if ([inObject respondsToSelector:@selector(JSONDataRepresentation)]) + { + return(YES); + } + else + { + return(NO); + } + } + +- (NSData *)serializeObject:(id)inObject error:(NSError **)outError + { + NSData *theResult = NULL; + + if ([inObject isKindOfClass:[NSNull class]]) + { + theResult = [self serializeNull:inObject error:outError]; + } + else if ([inObject isKindOfClass:[NSNumber class]]) + { + theResult = [self serializeNumber:inObject error:outError]; + } + else if ([inObject isKindOfClass:[NSString class]]) + { + theResult = [self serializeString:inObject error:outError]; + } + else if ([inObject isKindOfClass:[NSArray class]]) + { + theResult = [self serializeArray:inObject error:outError]; + } + else if ([inObject isKindOfClass:[NSDictionary class]]) + { + theResult = [self serializeDictionary:inObject error:outError]; + } + else if ([inObject isKindOfClass:[NSData class]]) + { + NSString *theString = [[[NSString alloc] initWithData:inObject encoding:NSUTF8StringEncoding] autorelease]; + theResult = [self serializeString:theString error:outError]; + } + else if ([inObject respondsToSelector:@selector(JSONDataRepresentation)]) + { + theResult = [inObject JSONDataRepresentation]; + } + else + { + if (outError) + { + NSDictionary *theUserInfo = [NSDictionary dictionaryWithObjectsAndKeys: + [NSString stringWithFormat:@"Cannot serialize data of type '%@'", NSStringFromClass([inObject class])], NSLocalizedDescriptionKey, + NULL]; + *outError = [NSError errorWithDomain:@"TODO_DOMAIN" code:CJSONSerializerErrorCouldNotSerializeDataType userInfo:theUserInfo]; + } + return(NULL); + } + if (theResult == NULL) + { + if (outError) + { + NSDictionary *theUserInfo = [NSDictionary dictionaryWithObjectsAndKeys: + [NSString stringWithFormat:@"Could not serialize object '%@'", inObject], NSLocalizedDescriptionKey, + NULL]; + *outError = [NSError errorWithDomain:@"TODO_DOMAIN" code:CJSONSerializerErrorCouldNotSerializeObject userInfo:theUserInfo]; + } + return(NULL); + } + return(theResult); + } + +- (NSData *)serializeNull:(NSNull *)inNull error:(NSError **)outError + { + #pragma unused (inNull, outError) + return(kNULL); + } + +- (NSData *)serializeNumber:(NSNumber *)inNumber error:(NSError **)outError + { + #pragma unused (outError) + NSData *theResult = NULL; + switch (CFNumberGetType((CFNumberRef)inNumber)) + { + case kCFNumberCharType: + { + int theValue = [inNumber intValue]; + if (theValue == 0) + theResult = kFalse; + else if (theValue == 1) + theResult = kTrue; + else + theResult = [[inNumber stringValue] dataUsingEncoding:NSASCIIStringEncoding]; + } + break; + case kCFNumberFloat32Type: + case kCFNumberFloat64Type: + case kCFNumberFloatType: + case kCFNumberDoubleType: + case kCFNumberSInt8Type: + case kCFNumberSInt16Type: + case kCFNumberSInt32Type: + case kCFNumberSInt64Type: + case kCFNumberShortType: + case kCFNumberIntType: + case kCFNumberLongType: + case kCFNumberLongLongType: + case kCFNumberCFIndexType: + default: + theResult = [[inNumber stringValue] dataUsingEncoding:NSASCIIStringEncoding]; + break; + } + return(theResult); + } + +- (NSData *)serializeString:(NSString *)inString error:(NSError **)outError + { + #pragma unused (outError) + + const char *theUTF8String = [inString UTF8String]; + + NSMutableData *theData = [NSMutableData dataWithLength:strlen(theUTF8String) * 2 + 2]; + + char *theOutputStart = [theData mutableBytes]; + char *OUT = theOutputStart; + + *OUT++ = '"'; + + for (const char *IN = theUTF8String; IN && *IN != '\0'; ++IN) + { + switch (*IN) + { + case '\\': + { + *OUT++ = '\\'; + *OUT++ = '\\'; + } + break; + case '\"': + { + *OUT++ = '\\'; + *OUT++ = '\"'; + } + break; + case '/': + { + *OUT++ = '\\'; + *OUT++ = '/'; + } + break; + case '\b': + { + *OUT++ = '\\'; + *OUT++ = 'b'; + } + break; + case '\f': + { + *OUT++ = '\\'; + *OUT++ = 'f'; + } + break; + case '\n': + { + *OUT++ = '\\'; + *OUT++ = 'n'; + } + break; + case '\r': + { + *OUT++ = '\\'; + *OUT++ = 'r'; + } + break; + case '\t': + { + *OUT++ = '\\'; + *OUT++ = 't'; + } + break; + default: + { + *OUT++ = *IN; + } + break; + } + } + + *OUT++ = '"'; + + theData.length = OUT - theOutputStart; + return(theData); + } + +- (NSData *)serializeArray:(NSArray *)inArray error:(NSError **)outError + { + NSMutableData *theData = [NSMutableData data]; + + [theData appendBytes:"[" length:1]; + + NSEnumerator *theEnumerator = [inArray objectEnumerator]; + id theValue = NULL; + NSUInteger i = 0; + while ((theValue = [theEnumerator nextObject]) != NULL) + { + NSData *theValueData = [self serializeObject:theValue error:outError]; + if (theValueData == NULL) + { + return(NULL); + } + [theData appendData:theValueData]; + if (++i < [inArray count]) + [theData appendBytes:"," length:1]; + } + + [theData appendBytes:"]" length:1]; + + return(theData); + } + +- (NSData *)serializeDictionary:(NSDictionary *)inDictionary error:(NSError **)outError + { + NSMutableData *theData = [NSMutableData data]; + + [theData appendBytes:"{" length:1]; + + NSArray *theKeys = [inDictionary allKeys]; + NSEnumerator *theEnumerator = [theKeys objectEnumerator]; + NSString *theKey = NULL; + while ((theKey = [theEnumerator nextObject]) != NULL) + { + id theValue = [inDictionary objectForKey:theKey]; + + NSData *theKeyData = [self serializeString:theKey error:outError]; + if (theKeyData == NULL) + { + return(NULL); + } + NSData *theValueData = [self serializeObject:theValue error:outError]; + if (theValueData == NULL) + { + return(NULL); + } + + + [theData appendData:theKeyData]; + [theData appendBytes:":" length:1]; + [theData appendData:theValueData]; + + if (theKey != [theKeys lastObject]) + [theData appendData:[@"," dataUsingEncoding:NSASCIIStringEncoding]]; + } + + [theData appendBytes:"}" length:1]; + + return(theData); + } + +@end |