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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,20 @@ | ||
| // | ||
| // HuobiCNYFetcher.h | ||
| // btcbar | ||
| // | ||
| // Created by lwei on 2/13/14. | ||
| // Copyright (c) 2014 nearengine. All rights reserved. | ||
| // | ||
|
|
||
| #import <Foundation/Foundation.h> | ||
| #import "Fetcher.h" | ||
|
|
||
| @interface BTCCCNYFetcher : NSObject<Fetcher, NSURLConnectionDelegate> | ||
|
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| @property (nonatomic) NSString* ticker; | ||
| @property (nonatomic) NSString* ticker_menu; | ||
| @property (nonatomic) NSString* url; | ||
| @property (nonatomic) NSError* error; | ||
| @property (nonatomic) NSMutableData *responseData; | ||
|
|
||
| @end |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,123 @@ | ||
| // | ||
| // HuobiCNYFetcher.m | ||
| // btcbar | ||
| // | ||
| // Created by lwei on 2/13/14. | ||
| // Copyright (c) 2014 nearengine. All rights reserved. | ||
| // | ||
|
|
||
| #import "BTCCCNYFetcher.h" | ||
|
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| @implementation BTCCCNYFetcher | ||
|
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| - (id)init | ||
| { | ||
| if (self = [super init]) | ||
| { | ||
| // Menu Item Name | ||
| self.ticker_menu = @"BTCC"; | ||
|
|
||
| // Website location | ||
| self.url = @"http://k.sosobtc.com/btc_btcchina.html?from=1NDnnWCUu926z4wxA3sNBGYWNQD3mKyes8"; | ||
|
|
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| // Immediately request first update | ||
| [self requestUpdate]; | ||
| } | ||
|
|
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| return self; | ||
| } | ||
|
|
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| // Override Ticker setter to trigger status item update | ||
| - (void)setTicker:(NSString *)tickerString | ||
| { | ||
| // Update the ticker value | ||
| _ticker = tickerString; | ||
|
|
||
| // Trigger notification to update ticker | ||
| [[NSNotificationCenter defaultCenter] postNotificationName:@"btcbar_ticker_update" object:self]; | ||
| } | ||
|
|
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| // Initiates an asyncronous HTTP connection | ||
| - (void)requestUpdate | ||
| { | ||
| NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"https://data.btcchina.com/data/ticker?market=btccny"]]; | ||
|
|
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| // Set the request's user agent | ||
| [request addValue:@"btcbar/2.0 (BTCCCNYFetcher)" forHTTPHeaderField:@"User-Agent"]; | ||
|
|
||
| // Initialize a connection from our request | ||
| NSURLConnection *connection = [[NSURLConnection alloc] initWithRequest:request delegate:self]; | ||
|
|
||
| // Go go go | ||
| [connection start]; | ||
| } | ||
|
|
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| // Initializes data storage on request response | ||
| - (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response | ||
| { | ||
| self.responseData = [[NSMutableData alloc] init]; | ||
| } | ||
|
|
||
| // Appends response data | ||
| - (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data | ||
| { | ||
| [self.responseData appendData:data]; | ||
| } | ||
|
|
||
| // Indiciate no caching | ||
| - (NSCachedURLResponse *)connection:(NSURLConnection *)connection willCacheResponse:(NSCachedURLResponse *)cachedResponse | ||
| { | ||
| return nil; | ||
| } | ||
|
|
||
| // Parse data after load | ||
| - (void)connectionDidFinishLoading:(NSURLConnection *)connection | ||
| { | ||
| NSString *responseStr = [[NSString alloc] initWithData:self.responseData encoding:NSUTF8StringEncoding]; | ||
| if (!responseStr) { | ||
| return; | ||
| } | ||
|
|
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| NSString *resultsStr = responseStr; | ||
|
|
||
| // Parse the JSON into results | ||
| NSError *jsonParsingError = nil; | ||
| id results = [NSJSONSerialization JSONObjectWithData:[resultsStr dataUsingEncoding:NSUTF8StringEncoding] options:NSJSONReadingAllowFragments error:&jsonParsingError]; | ||
|
|
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| // Results parsed successfully from JSON | ||
| if (results) | ||
| { | ||
| NSDictionary *ticker_resp = [results objectForKey:@"ticker"]; | ||
| NSString *ticker = [ticker_resp objectForKey:@"last"]; | ||
|
|
||
| if (ticker) { | ||
| // NSNumberFormatter *numberFormatter = [[NSNumberFormatter alloc] init]; | ||
| NSString *resultsStatus = [[NSString alloc] init]; | ||
| resultsStatus = [NSString stringWithFormat:@"¥%@", ticker]; | ||
|
|
||
| self.error = nil; | ||
| self.ticker = resultsStatus; | ||
| } | ||
| // Otherwise log an error... | ||
| else | ||
| { | ||
| self.error = [NSError errorWithDomain:@"com.nearengine.btcbar" code:0 userInfo:[NSDictionary dictionaryWithObjectsAndKeys: @"API Error", NSLocalizedDescriptionKey, @"The JSON received did not contain a result or the API returned an error.", NSLocalizedFailureReasonErrorKey, nil]]; | ||
| self.ticker = nil; | ||
| } | ||
| } | ||
| // JSON parsing failed | ||
| else | ||
| { | ||
| self.error = [NSError errorWithDomain:@"com.nearengine.btcbar" code:0 userInfo:[NSDictionary dictionaryWithObjectsAndKeys: @"JSON Error", NSLocalizedDescriptionKey, @"Could not parse the JSON returned.", NSLocalizedFailureReasonErrorKey, nil]]; | ||
| self.ticker = nil; | ||
| } | ||
| } | ||
|
|
||
| // HTTP request failed | ||
| - (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error | ||
| { | ||
| self.error = [NSError errorWithDomain:@"com.nearengine.btcbar" code:0 userInfo:[NSDictionary dictionaryWithObjectsAndKeys: @"Connection Error", NSLocalizedDescriptionKey, @"Could not connect to Huobi.", NSLocalizedFailureReasonErrorKey, nil]]; | ||
| self.ticker = nil; | ||
| } | ||
|
|
||
| @end |
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