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//
// OAAsynchronousDataFetcher.m
// OAuthConsumer
//
// Created by Zsombor Szabó on 12/3/08.
//
// 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 "OAAsynchronousDataFetcher.h"
#import "OAServiceTicket.h"
@implementation OAAsynchronousDataFetcher
+ (id)asynchronousFetcherWithRequest:(OAMutableURLRequest *)aRequest delegate:(id)aDelegate didFinishSelector:(SEL)finishSelector didFailSelector:(SEL)failSelector
{
return [[[OAAsynchronousDataFetcher alloc] initWithRequest:aRequest delegate:aDelegate didFinishSelector:finishSelector didFailSelector:failSelector] autorelease];
}
- (id)initWithRequest:(OAMutableURLRequest *)aRequest delegate:(id)aDelegate didFinishSelector:(SEL)finishSelector didFailSelector:(SEL)failSelector
{
if ((self = [super init]))
{
request = [aRequest retain];
delegate = aDelegate;
didFinishSelector = finishSelector;
didFailSelector = failSelector;
}
return self;
}
- (void)start
{
[request prepare];
if (connection)
[connection release];
connection = [[NSURLConnection alloc] initWithRequest:request delegate:self];
if (connection)
{
if (responseData)
[responseData release];
responseData = [[NSMutableData data] retain];
}
else
{
OAServiceTicket *ticket= [[OAServiceTicket alloc] initWithRequest:request
response:nil
didSucceed:NO];
[delegate performSelector:didFailSelector
withObject:ticket
withObject:nil];
[ticket release];
}
}
- (void)cancel
{
if (connection)
{
[connection cancel];
[connection release];
connection = nil;
}
}
- (void)dealloc
{
if (request) [request release];
if (connection) [connection release];
if (response) [response release];
if (responseData) [responseData release];
[super dealloc];
}
#pragma mark -
#pragma mark NSURLConnection methods
- (void)connection:(NSURLConnection *)aConnection didReceiveResponse:(NSURLResponse *)aResponse
{
if (response)
[response release];
response = [aResponse retain];
[responseData setLength:0];
}
- (void)connection:(NSURLConnection *)aConnection didReceiveData:(NSData *)data
{
[responseData appendData:data];
}
- (void)connection:(NSURLConnection *)aConnection didFailWithError:(NSError *)error
{
OAServiceTicket *ticket= [[OAServiceTicket alloc] initWithRequest:request
response:response
didSucceed:NO];
[delegate performSelector:didFailSelector
withObject:ticket
withObject:error];
[ticket release];
}
- (void)connectionDidFinishLoading:(NSURLConnection *)aConnection
{
OAServiceTicket *ticket = [[OAServiceTicket alloc] initWithRequest:request
response:response
didSucceed:[(NSHTTPURLResponse *)response statusCode] < 400];
[delegate performSelector:didFinishSelector
withObject:ticket
withObject:responseData];
[ticket release];
}
@end