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BBSHessianResult.m
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BBSHessianResult.m
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//
// BBSHessianResponse.m
// HessianObjC
// Copyright Byron Wright, Blue Bear Studio
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
#import <HessianObjC/BBSHessianResult.h>
#import <HessianObjC/BBSHessianDecoder.h>
#import <HessianObjC/BBSHessianObjCDefines.h>
@implementation BBSHessianResult
- (id) initForReadingWithData:(NSData *) someData {
if((self = [super init]) != nil) {
[someData retain];
data = someData;
}
return self;
}
- (id) resultValue {
if(resultValue == nil) {
//decode data
//the actual return object should be the data between the 'r' and version number
//and the end character 'z'
//check first characters for valid return
uint8_t * returnHeader = malloc(sizeof(uint8_t) * 4);
if(!returnHeader) {
NSLog(@"could alloc memory for result");
return nil;
}
memset(returnHeader,0,4);
[data getBytes:returnHeader length:3];
if(!(returnHeader[0] == 'r')) {
NSDictionary * userInfo = [NSDictionary dictionaryWithObject:@"Malformed response from server"
forKey:NSLocalizedDescriptionKey];
return [NSError errorWithDomain:BBSHessianObjCError
code:BBSHessianProtocolBadReplyError
userInfo:userInfo];
}
majorVersion = returnHeader[1];
minorVersion = returnHeader[2];
free(returnHeader);
void * bytes = malloc(sizeof(uint8_t)*([data length]-4));
if(!bytes) {
NSLog(@"could alloc memory for result");
return nil;
}
[data getBytes:bytes range:NSMakeRange(3,[data length]-1)];
//calling dataWithBytesNoCopy allows the resultsValueData to free the bytes that where malloced and is more effecient
NSData * resultValueData = [NSData dataWithBytesNoCopy:bytes length:[data length]-4];
BBSHessianDecoder * decoder = [[[BBSHessianDecoder alloc] initForReadingWithData:resultValueData] autorelease];
id obj =[decoder decodedObject];
//TODO: ideally we should make sure the last char in the stream after the result is a 'z'
//I am ingoring this for now
resultValue = [obj retain];
}
return resultValue;
}
- (void) dealloc {
[resultValue release];
resultValue = nil;
[super dealloc];
}
@end