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author | Filipp Lepalaan <filipp@mac.com> | 2011-07-13 21:57:44 +0300 |
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committer | Filipp Lepalaan <filipp@mac.com> | 2011-07-13 21:57:44 +0300 |
commit | fff8d58a80cbd8089832429f23b665983e4e8117 (patch) | |
tree | 2f102535fdd220b016ddb09b4a0eb2314054c992 /SBJsonWriter.m | |
download | HammerTime-fff8d58a80cbd8089832429f23b665983e4e8117.tar.gz HammerTime-fff8d58a80cbd8089832429f23b665983e4e8117.tar.bz2 HammerTime-fff8d58a80cbd8089832429f23b665983e4e8117.zip |
Diffstat (limited to 'SBJsonWriter.m')
-rwxr-xr-x | SBJsonWriter.m | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/SBJsonWriter.m b/SBJsonWriter.m new file mode 100755 index 0000000..15d1414 --- /dev/null +++ b/SBJsonWriter.m @@ -0,0 +1,113 @@ +/* + Copyright (C) 2009 Stig Brautaset. All rights reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are met: + + * Redistributions of source code must retain the above copyright notice, this + list of conditions and the following disclaimer. + + * Redistributions in binary form must reproduce the above copyright notice, + this list of conditions and the following disclaimer in the documentation + and/or other materials provided with the distribution. + + * Neither the name of the author nor the names of its contributors may be used + to endorse or promote products derived from this software without specific + prior written permission. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE + FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#import "SBJsonWriter.h" +#import "SBJsonStreamWriter.h" +#import "SBJsonStreamWriterAccumulator.h" + + +@interface SBJsonWriter () +@property (copy) NSString *error; +@end + +@implementation SBJsonWriter + +@synthesize sortKeys; +@synthesize humanReadable; + +@synthesize error; +@synthesize maxDepth; + +- (id)init { + self = [super init]; + if (self) { + self.maxDepth = 32u; + } + return self; +} + +- (void)dealloc { + [error release]; + [super dealloc]; +} + +- (NSString*)stringWithObject:(id)value { + NSData *data = [self dataWithObject:value]; + if (data) + return [[[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding] autorelease]; + return nil; +} + +- (NSString*)stringWithObject:(id)value error:(NSError**)error_ { + NSString *tmp = [self stringWithObject:value]; + if (tmp) + return tmp; + + if (error_) { + NSDictionary *ui = [NSDictionary dictionaryWithObjectsAndKeys:error, NSLocalizedDescriptionKey, nil]; + *error_ = [NSError errorWithDomain:@"org.brautaset.SBJsonWriter.ErrorDomain" code:0 userInfo:ui]; + } + + return nil; +} + +- (NSData*)dataWithObject:(id)object { + self.error = nil; + + SBJsonStreamWriterAccumulator *accumulator = [[[SBJsonStreamWriterAccumulator alloc] init] autorelease]; + + SBJsonStreamWriter *streamWriter = [[[SBJsonStreamWriter alloc] init] autorelease]; + streamWriter.sortKeys = self.sortKeys; + streamWriter.maxDepth = self.maxDepth; + streamWriter.humanReadable = self.humanReadable; + streamWriter.delegate = accumulator; + + BOOL ok = NO; + if ([object isKindOfClass:[NSDictionary class]]) + ok = [streamWriter writeObject:object]; + + else if ([object isKindOfClass:[NSArray class]]) + ok = [streamWriter writeArray:object]; + + else if ([object respondsToSelector:@selector(proxyForJson)]) + return [self dataWithObject:[object proxyForJson]]; + else { + self.error = @"Not valid type for JSON"; + return nil; + } + + if (ok) + return accumulator.data; + + self.error = streamWriter.error; + return nil; +} + + +@end |