RemoteCurrencyClient/RemoteCurrencyClientConnection.h

/*
    File:       RemoteCurrencyClientConnection.h
 
    Contains:   Manages the client side of a client-server connection.
 
    Written by: DTS
 
    Copyright:  Copyright (c) 2011 Apple Inc. All Rights Reserved.
 
    Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple Inc.
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*/
 
#import "QCommandLineConnection.h"
 
@protocol RemoteCurrencyClientConnectionDelegate;
 
@interface RemoteCurrencyClientConnection : QCommandLineConnection
 
// Most of the heavy lifting is done by the QCommandLineConnection superclass.  The 
// following inherited methods are critical to all clients:
// 
// - (id)initWithInputStream:(NSInputStream *)inputStream outputStream:(NSOutputStream *)outputStream;
// - (void)open;
// - (void)close;
 
@property (nonatomic, assign, readwrite) id<RemoteCurrencyClientConnectionDelegate> clientDelegate;
 
- (void)sendRequest:(NSString *)request;
    // Sends a request to the server, adding the CR LF.
 
@end
 
@protocol RemoteCurrencyClientConnectionDelegate <NSObject>
 
@required
 
- (void)remoteCurrencyClientConnection:(RemoteCurrencyClientConnection *)connection willCloseWithError:(NSError *)error;
    // Called when the connection is closed from the network side of things (but not 
    // if you call -close on it).  You should implement this method to remove the connection 
    // from your table of active connections.
    //
    // error will be nil if the connection closed due to EOF; otherwise 
    // error will represent the reason for the close.
 
// IMPORTANT: Commands are always processed in order, so this response is implicitly the response 
// to the oldest unresponded to request (where a request is considered responded to by either 
// didReceiveResponse or didReceiveError).
 
- (void)remoteCurrencyClientConnection:(RemoteCurrencyClientConnection *)connection didReceiveResponse:(NSString *)response lines:(NSArray *)lines;
    // Called when the server receives a response for a request.  response is the actual response 
    // text, which does not include the "+ " prefix.  lines contains the data lines associated with 
    // the response; it will never be nil but may be empty.
    
- (void)remoteCurrencyClientConnection:(RemoteCurrencyClientConnection *)connection didReceiveError:(NSString *)errorResponse;
    // Called when the server receives an error response for a request.  errorResponse is the actual 
    // text, which does not include the "- " prefix.
 
- (void)remoteCurrencyClientConnection:(RemoteCurrencyClientConnection *)connection logWithFormat:(NSString *)format arguments:(va_list)argList;
    // Called when the connection wants to log something.
 
@end