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Clean Coders Hate What Happens To Your Code When You Use These Enterprise Programming Tricks

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Page 1: Clean Coders Hate What Happens To Your Code When You Use These Enterprise Programming Tricks
Page 2: Clean Coders Hate What Happens To Your Code When You Use These Enterprise Programming Tricks
Page 3: Clean Coders Hate What Happens To Your Code When You Use These Enterprise Programming Tricks

Connection * CreateServerConnection() { // Declarations char buffer[1024]; std::string cfgAddress; unsigned long address; std::string cfgPort; unsigned short port; Connection * result; // Get address and check that its OK (throw an exception if its not) cfgAddress = ConfigurationManager::Instance().GetValue("address"); if(cfgAddress.empty()) { sprintf(buffer, "Configuration value missing: %s", "address"); Log::Instance().Write(buffer); throw ConnectionException(buffer); } // Convert adress to bytes and check that its OK (throw an exception if its not) address = inet_addr(cfgAddress.data()); if(address == -1) { sprintf(buffer, "Invalid address: %s", cfgAddress.data()); Log::Instance().Write(buffer); throw ConnectionException(buffer); } // Get port and check that its OK (throw an exception if its not) cfgPort = ConfigurationManager::Instance().GetValue("port"); if(cfgPort.empty()) { sprintf(buffer, "Configuration value missing: %s", "port"); Log::Instance().Write(buffer); throw ConnectionException(buffer); } // Convert port too bytes port = htons(atoi(cfgPort.data())); // Creation connection and check that its OK (throw an exception if its not) result = new Connection(address, port); if(!result || !result->IsOK()) { sprintf(buffer, "Failed to connect: %s:%s", cfgAddress.data(), cfgPort.data()); Log::Instance().Write(buffer); throw ConnectionException(buffer); } // Return the connection return result; }

Page 4: Clean Coders Hate What Happens To Your Code When You Use These Enterprise Programming Tricks

Connection * CreateServerConnection() { // Declarations char buffer[1024]; std::string cfgAddress; unsigned long address; std::string cfgPort; unsigned short port; Connection * result; ... }

Page 5: Clean Coders Hate What Happens To Your Code When You Use These Enterprise Programming Tricks

Connection * CreateServerConnection() { ... // Get address and check that its OK (throw an exception if its not) cfgAddress = ConfigurationManager::Instance().GetValue("address"); if(cfgAddress.empty()) { sprintf(buffer, "Configuration value missing: %s", "address"); Log::Instance().Write(buffer); throw ConnectionException(buffer); } ... }

Page 6: Clean Coders Hate What Happens To Your Code When You Use These Enterprise Programming Tricks

Connection * CreateServerConnection() { ... // Convert adress to bytes and check that its OK (throw an exception if its not) address = inet_addr(cfgAddress.data()); if(address == -1) { sprintf(buffer, "Invalid address: %s", cfgAddress.data()); Log::Instance().Write(buffer); throw ConnectionException(buffer); } ... }

Page 7: Clean Coders Hate What Happens To Your Code When You Use These Enterprise Programming Tricks

Connection * CreateServerConnection() { ... // Get port and check that its OK (throw an exception if its not) cfgPort = ConfigurationManager::Instance().GetValue("port"); if(cfgPort.empty()) { sprintf(buffer, "Configuration value missing: %s", "port"); Log::Instance().Write(buffer); throw ConnectionException(buffer); } ... }

Page 8: Clean Coders Hate What Happens To Your Code When You Use These Enterprise Programming Tricks

Connection * CreateServerConnection() { ... // Convert port too bytes port = htons(atoi(cfgPort.data())); ... }

Page 9: Clean Coders Hate What Happens To Your Code When You Use These Enterprise Programming Tricks

Connection * CreateServerConnection() { ... // Creation connection and check that its OK (throw an exception if its not) result = new Connection(address, port); if(!result || !result->IsOK()) { sprintf(buffer, "Failed to connect: %s:%s", cfgAddress.data(), cfgPort.data()); Log::Instance().Write(buffer); throw ConnectionException(buffer); } ... }

Page 10: Clean Coders Hate What Happens To Your Code When You Use These Enterprise Programming Tricks

Connection * CreateServerConnection() { ... // Return the connection return result; }

Page 11: Clean Coders Hate What Happens To Your Code When You Use These Enterprise Programming Tricks

Connection * CreateServerConnection() { // Declarations ... // Get address and check that its OK (throw an exception if its not) ... // Convert adress to bytes and check that its OK (throw an exception if its not) ... // Get port and check that its OK (throw an exception if its not) ... // Convert port too bytes ... // Creation connection and check that its OK (throw an exception if its not) ... // Return the connection ... }

Page 12: Clean Coders Hate What Happens To Your Code When You Use These Enterprise Programming Tricks

Connection * CreateServerConnection() { // Declarations ... // Get address and check that it's OK (throw an exception if it's not) ... // Convert address to bytes and check that it's OK (throw an exception if it's not) ... // Get port and check that it's OK (throw an exception if it's not) ... // Convert port to bytes ... // Creation connection and check that it's OK (throw an exception if it's not) ... // Return the connection ... }

Page 13: Clean Coders Hate What Happens To Your Code When You Use These Enterprise Programming Tricks

Connection * CreateServerConnection() { ... ... ... ... ... ... ... }

Page 14: Clean Coders Hate What Happens To Your Code When You Use These Enterprise Programming Tricks

Connection * CreateServerConnection() { char buffer[1024]; std::string cfgAddress; unsigned long address; std::string cfgPort; unsigned short port; Connection * result; cfgAddress = ConfigurationManager::Instance().GetValue("address"); if(cfgAddress.empty()) { sprintf(buffer, "Configuration value missing: %s", "address"); Log::Instance().Write(buffer); throw ConnectionException(buffer); } address = inet_addr(cfgAddress.data()); if(address == -1) { sprintf(buffer, "Invalid address: %s", cfgAddress.data()); Log::Instance().Write(buffer); throw ConnectionException(buffer); } cfgPort = ConfigurationManager::Instance().GetValue("port"); if(cfgPort.empty()) { sprintf(buffer, "Configuration value missing: %s", "port"); Log::Instance().Write(buffer); throw ConnectionException(buffer); } port = htons(atoi(cfgPort.data())); result = new Connection(address, port); if(!result || !result->IsOK()) { sprintf(buffer, "Failed to connect: %s:%s", cfgAddress.data(), cfgPort.data()); Log::Instance().Write(buffer); throw ConnectionException(buffer); } return result; }

Page 15: Clean Coders Hate What Happens To Your Code When You Use These Enterprise Programming Tricks

Connection * CreateServerConnection() { char buffer[1024]; std::string cfgAddress = ConfigurationManager::Instance().GetValue("address"); if(cfgAddress.empty()) { sprintf(buffer, "Configuration value missing: %s", "address"); Log::Instance().Write(buffer); throw ConnectionException(buffer); } unsigned long address = inet_addr(cfgAddress.data()); if(address == -1) { sprintf(buffer, "Invalid address: %s", cfgAddress.data()); Log::Instance().Write(buffer); throw ConnectionException(buffer); } std::string cfgPort = ConfigurationManager::Instance().GetValue("port"); if(cfgPort.empty()) { sprintf(buffer, "Configuration value missing: %s", "port"); Log::Instance().Write(buffer); throw ConnectionException(buffer); } unsigned short port = htons(atoi(cfgPort.data())); Connection * result = new Connection(address, port); if(!result || !result->IsOK()) { sprintf(buffer, "Failed to connect: %s:%s", cfgAddress.data(), cfgPort.data()); Log::Instance().Write(buffer); throw ConnectionException(buffer); } return result; }

Page 16: Clean Coders Hate What Happens To Your Code When You Use These Enterprise Programming Tricks

Connection * CreateServerConnection() { char buffer[1024]; auto cfgAddress = ConfigurationManager::Instance().GetValue("address"); if(cfgAddress.empty()) { sprintf(buffer, "Configuration value missing: %s", "address"); Log::Instance().Write(buffer); throw ConnectionException(buffer); } auto address = inet_addr(cfgAddress.data()); if(address == -1) { sprintf(buffer, "Invalid address: %s", cfgAddress.data()); Log::Instance().Write(buffer); throw ConnectionException(buffer); } auto cfgPort = ConfigurationManager::Instance().GetValue("port"); if(cfgPort.empty()) { sprintf(buffer, "Configuration value missing: %s", "port"); Log::Instance().Write(buffer); throw ConnectionException(buffer); } auto port = htons(atoi(cfgPort.data())); Connection * result = new Connection(address, port); if(!result || !result->IsOK()) { sprintf(buffer, "Failed to connect: %s:%s", cfgAddress.data(), cfgPort.data()); Log::Instance().Write(buffer); throw ConnectionException(buffer); } return result; }

Page 17: Clean Coders Hate What Happens To Your Code When You Use These Enterprise Programming Tricks

Connection * CreateServerConnection() { ... Connection * result = new Connection(address, port); if(!result || !result->IsOK()) { sprintf(buffer, "Failed to connect: %s:%s", cfgAddress.data(), cfgPort.data()); Log::Instance().Write(buffer); throw ConnectionException(buffer); } return result; }

Page 18: Clean Coders Hate What Happens To Your Code When You Use These Enterprise Programming Tricks

Connection * CreateServerConnection() { ... Connection * result = new Connection(address, port); if(!result->IsOK()) { sprintf(buffer, "Failed to connect: %s:%s", cfgAddress.data(), cfgPort.data()); Log::Instance().Write(buffer); throw ConnectionException(buffer); } return result; }

Page 19: Clean Coders Hate What Happens To Your Code When You Use These Enterprise Programming Tricks

std::auto_ptr<Connection> CreateServerConnection() { ... std::auto_ptr<Connection> result(new Connection(address, port)); if(!result->IsOK()) { sprintf(buffer, "Failed to connect: %s:%s", cfgAddress.data(), cfgPort.data()); Log::Instance().Write(buffer); throw ConnectionException(buffer); } return result; }

Page 20: Clean Coders Hate What Happens To Your Code When You Use These Enterprise Programming Tricks

std::unique_ptr<Connection> CreateServerConnection() { ... auto result = std::make_unique<Connection>(address, port); if(!result->IsOK()) { sprintf(buffer, "Failed to connect: %s:%s", cfgAddress.data(), cfgPort.data()); Log::Instance().Write(buffer); throw ConnectionException(buffer); } return result; }

Page 21: Clean Coders Hate What Happens To Your Code When You Use These Enterprise Programming Tricks

Connection * CreateServerConnection() { ... auto result = std::make_unique<Connection>(address, port); if(!result->IsOK()) { sprintf(buffer, "Failed to connect: %s:%s", cfgAddress.data(), cfgPort.data()); Log::Instance().Write(buffer); throw ConnectionException(buffer); } return result.release(); }

Page 22: Clean Coders Hate What Happens To Your Code When You Use These Enterprise Programming Tricks

Connection * CreateServerConnection() { char buffer[1024]; auto cfgAddress = ConfigurationManager::Instance().GetValue("address"); if(cfgAddress.empty()) { sprintf(buffer, "Configuration value missing: %s", "address"); Log::Instance().Write(buffer); throw ConnectionException(buffer); } auto address = inet_addr(cfgAddress.data()); if(address == -1) { sprintf(buffer, "Invalid address: %s", cfgAddress.data()); Log::Instance().Write(buffer); throw ConnectionException(buffer); } auto cfgPort = ConfigurationManager::Instance().GetValue("port"); if(cfgPort.empty()) { sprintf(buffer, "Configuration value missing: %s", "port"); Log::Instance().Write(buffer); throw ConnectionException(buffer); } auto port = htons(atoi(cfgPort.data())); auto result = std::make_unique<Connection>(address, port); if(!result->IsOK()) { sprintf(buffer, "Failed to connect: %s:%s", cfgAddress.data(), cfgPort.data()); Log::Instance().Write(buffer); throw ConnectionException(buffer); } return result.release(); }

Page 23: Clean Coders Hate What Happens To Your Code When You Use These Enterprise Programming Tricks

Connection * CreateServerConnection() { char buffer[1024]; auto cfgAddress = ConfigurationManager::Instance().GetValue("address"); if(cfgAddress.empty()) { sprintf(buffer, "Configuration value missing: %s", "address"); Log::Instance().Write(buffer); throw ConnectionException(buffer); } auto address = inet_addr(cfgAddress.data()); if(address == -1) { sprintf(buffer, "Invalid address: %s", cfgAddress.data()); Log::Instance().Write(buffer); throw ConnectionException(buffer); } auto cfgPort = ConfigurationManager::Instance().GetValue("port"); if(cfgPort.empty()) { sprintf(buffer, "Configuration value missing: %s", "port"); Log::Instance().Write(buffer); throw ConnectionException(buffer); } auto port = htons(atoi(cfgPort.data())); auto result = std::make_unique<Connection>(address, port); if(!result->IsOK()) { sprintf(buffer, "Failed to connect: %s:%s", cfgAddress.data(), cfgPort.data()); Log::Instance().Write(buffer); throw ConnectionException(buffer); } return result.release(); }

Page 24: Clean Coders Hate What Happens To Your Code When You Use These Enterprise Programming Tricks

Connection * CreateServerConnection() { char buffer[1024]; auto cfgAddress = ConfigurationManager::Instance().GetValue("address"); if(cfgAddress.empty()) { sprintf(buffer, "Configuration value missing: %s", "address"); Log::Instance().Write(buffer); throw ConnectionException(buffer); } auto address = inet_addr(cfgAddress.c_str()); if(address == -1) { sprintf(buffer, "Invalid address: %s", cfgAddress.c_str()); Log::Instance().Write(buffer); throw ConnectionException(buffer); } auto cfgPort = ConfigurationManager::Instance().GetValue("port"); if(cfgPort.empty()) { sprintf(buffer, "Configuration value missing: %s", "port"); Log::Instance().Write(buffer); throw ConnectionException(buffer); } auto port = htons(atoi(cfgPort.c_str())); auto result = std::make_unique<Connection>(address, port); if(!result->IsOK()) { sprintf(buffer, "Failed to connect: %s:%s", cfgAddress.c_str(), cfgPort.c_str()); Log::Instance().Write(buffer); throw ConnectionException(buffer); } return result.release(); }

Page 25: Clean Coders Hate What Happens To Your Code When You Use These Enterprise Programming Tricks

Connection * CreateServerConnection() { char buffer[1024]; auto cfgAddress = ConfigurationManager::Instance().GetValue("address"); if(cfgAddress.empty()) { sprintf(buffer, "Configuration value missing: %s", "address"); Log::Instance().Write(buffer); throw ConnectionException(buffer); } auto address = inet_addr(cfgAddress.c_str()); if(address == -1) { sprintf(buffer, "Invalid address: %s", cfgAddress.c_str()); Log::Instance().Write(buffer); throw ConnectionException(buffer); } auto cfgPort = ConfigurationManager::Instance().GetValue("port"); if(cfgPort.empty()) { sprintf(buffer, "Configuration value missing: %s", "port"); Log::Instance().Write(buffer); throw ConnectionException(buffer); } auto port = htons(stoi(cfgPort)); auto result = std::make_unique<Connection>(address, port); if(!result->IsOK()) { sprintf(buffer, "Failed to connect: %s:%s", cfgAddress.c_str(), cfgPort.c_str()); Log::Instance().Write(buffer); throw ConnectionException(buffer); } return result.release(); }

Page 26: Clean Coders Hate What Happens To Your Code When You Use These Enterprise Programming Tricks

Connection * CreateServerConnection() { char buffer[1024]; auto cfgAddress = ConfigurationManager::Instance().GetValue("address"); if(cfgAddress.empty()) { sprintf(buffer, "Configuration value missing: %s", "address"); Log::Instance().Write(buffer); throw ConnectionException(buffer); } auto address = inet_addr(cfgAddress.c_str()); if(address == -1) { sprintf(buffer, "Invalid address: %s", cfgAddress.c_str()); Log::Instance().Write(buffer); throw ConnectionException(buffer); } auto cfgPort = ConfigurationManager::Instance().GetValue("port"); if(cfgPort.empty()) { sprintf(buffer, "Configuration value missing: %s", "port"); Log::Instance().Write(buffer); throw ConnectionException(buffer); } auto port = htons(stoi(cfgPort)); auto result = std::make_unique<Connection>(address, port); if(!result->IsOK()) { sprintf(buffer, "Failed to connect: %s:%s", cfgAddress.c_str(), cfgPort.c_str()); Log::Instance().Write(buffer); throw ConnectionException(buffer); } return result.release(); }

Page 27: Clean Coders Hate What Happens To Your Code When You Use These Enterprise Programming Tricks

Connection * CreateServerConnection() { char buffer[1024]; auto cfgAddress = ConfigurationManager::Instance().GetValue("address"); if(cfgAddress.empty()) { snprintf(buffer, sizeof buffer, "Configuration value missing: %s", "address"); Log::Instance().Write(buffer); throw ConnectionException(buffer); } auto address = inet_addr(cfgAddress.c_str()); if(address == -1) { snprintf(buffer, sizeof buffer, "Invalid address: %s", cfgAddress.c_str()); Log::Instance().Write(buffer); throw ConnectionException(buffer); } auto cfgPort = ConfigurationManager::Instance().GetValue("port"); if(cfgPort.empty()) { snprintf(buffer, sizeof buffer, "Configuration value missing: %s", "port"); Log::Instance().Write(buffer); throw ConnectionException(buffer); } auto port = htons(stoi(cfgPort)); auto result = std::make_unique<Connection>(address, port); if(!result->IsOK()) { snprintf(buffer, sizeof buffer, "Failed to connect: %s:%s", cfgAddress.c_str(), cfgPort.c_str()); Log::Instance().Write(buffer); throw ConnectionException(buffer); } return result.release(); }

Page 28: Clean Coders Hate What Happens To Your Code When You Use These Enterprise Programming Tricks

Connection * CreateServerConnection() { char buffer[1024]; ... if(cfgAddress.empty()) { snprintf(buffer, sizeof buffer, "Configuration value missing: %s", "address"); Log::Instance().Write(buffer); throw ConnectionException(buffer); } ... if(address == -1) { snprintf(buffer, sizeof buffer, "Invalid address: %s", cfgAddress.c_str()); Log::Instance().Write(buffer); throw ConnectionException(buffer); } ... }

Page 29: Clean Coders Hate What Happens To Your Code When You Use These Enterprise Programming Tricks

Connection * CreateServerConnection() { ... if(cfgAddress.empty()) { std::stringstream buffer; buffer << "Configuration value missing: " << "address"; Log::Instance().Write(buffer.str()); throw ConnectionException(buffer.str()); } ... if(address == -1) { std::stringstream buffer; buffer << "Invalid address: " << cfgAddress; Log::Instance().Write(buffer.str()); throw ConnectionException(buffer.str()); } ... }

Page 30: Clean Coders Hate What Happens To Your Code When You Use These Enterprise Programming Tricks

Connection * CreateServerConnection() { ... if(cfgAddress.empty()) { static const char * logMessage = "Configuration value missing: address"; Log::Instance().Write(logMessage); throw ConnectionException(logMessage); } ... if(address == -1) { auto logMessage = "Invalid address: " + cfgAddress; Log::Instance().Write(logMessage); throw ConnectionException(logMessage); } ... }

Page 31: Clean Coders Hate What Happens To Your Code When You Use These Enterprise Programming Tricks

Connection * CreateServerConnection() { auto cfgAddress = ConfigurationManager::Instance().GetValue("address"); if(cfgAddress.empty()) { static const char * logMessage = "Configuration value missing: address"; Log::Instance().Write(logMessage); throw ConnectionException(logMessage); } auto address = inet_addr(cfgAddress.c_str()); if(address == -1) { auto logMessage = "Invalid address: " + cfgAddress; Log::Instance().Write(logMessage); throw ConnectionException(logMessage); } auto cfgPort = ConfigurationManager::Instance().GetValue("port"); if(cfgPort.empty()) { static const char * logMessage = "Configuration value missing: port"); Log::Instance().Write(logMessage); throw ConnectionException(logMessage); } auto port = htons(stoi(cfgPort)); auto result = std::make_unique<Connection>(address, port); if(!result->IsOK()) { auto logMessage = "Failed to connect: " + cfgAddress + ":" + cfgPort; Log::Instance().Write(logMessage); throw ConnectionException(logMessage); } return result.release(); }

Page 32: Clean Coders Hate What Happens To Your Code When You Use These Enterprise Programming Tricks

Connection * CreateServerConnection() { auto cfgAddress = ConfigurationManager::Instance().GetValue("address"); if(cfgAddress.empty()) { FailedToConnect("Configuration value missing: address"); } auto address = inet_addr(cfgAddress.c_str()); if(address == -1) { FailedToConnect("Invalid address: " + cfgAddress); } auto cfgPort = ConfigurationManager::Instance().GetValue("port"); if(cfgPort.empty()) { FailedToConnect("Configuration value missing: port"); } auto port = htons(stoi(cfgPort)); auto result = std::make_unique<Connection>(address, port); if(!result->IsOK()) { FailedToConnect("Failed to connect: " + cfgAddress + ":" + cfgPort); } return result.release(); }

Page 33: Clean Coders Hate What Happens To Your Code When You Use These Enterprise Programming Tricks

Connection * CreateServerConnection() { auto cfgAddress = ConfigurationManager::Instance().GetValue("address"); if(cfgAddress.empty()) FailedToConnect("Configuration value missing: address"); auto address = inet_addr(cfgAddress.c_str()); if(address == -1) FailedToConnect("Invalid address: " + cfgAddress); auto cfgPort = ConfigurationManager::Instance().GetValue("port"); if(cfgPort.empty()) FailedToConnect("Configuration value missing: port"); auto port = htons(stoi(cfgPort)); auto result = std::make_unique<Connection>(address, port); if(!result->IsOK()) FailedToConnect("Failed to connect: " + cfgAddress + ":" + cfgPort); return result.release(); }

Page 34: Clean Coders Hate What Happens To Your Code When You Use These Enterprise Programming Tricks

std::unique_ptr<Connection> CreateServerConnection() { auto cfgAddress = ConfigurationManager::Instance().GetValue("address"); if(cfgAddress.empty()) FailedToConnect("Configuration value missing: address"); auto address = inet_addr(cfgAddress.c_str()); if(address == -1) FailedToConnect("Invalid address: " + cfgAddress); auto cfgPort = ConfigurationManager::Instance().GetValue("port"); if(cfgPort.empty()) FailedToConnect("Configuration value missing: port"); auto port = htons(stoi(cfgPort)); auto result = std::make_unique<Connection>(address, port); if(!result->IsOK()) FailedToConnect("Failed to connect: " + cfgAddress + ":" + cfgPort); return result; }

Page 35: Clean Coders Hate What Happens To Your Code When You Use These Enterprise Programming Tricks

std::unique_ptr<Connection> CreateServerConnection() { auto cfgAddress = ConfigurationManager::Instance().GetValue("address"); if(cfgAddress.empty()) FailedToConnect("Configuration value missing: address"); auto address = inet_addr(cfgAddress.c_str()); if(address == -1) FailedToConnect("Invalid address: " + cfgAddress); auto cfgPort = ConfigurationManager::Instance().GetValue("port"); if(cfgPort.empty()) FailedToConnect("Configuration value missing: port"); auto port = htons(stoi(cfgPort)); auto result = std::make_unique<Connection>(address, port); if(!result->IsOK()) FailedToConnect("Failed to connect: " + cfgAddress + ":" + cfgPort); return result; }

Page 36: Clean Coders Hate What Happens To Your Code When You Use These Enterprise Programming Tricks

std::unique_ptr<Connection> CreateServerConnection() { auto cfgAddress = ConfigurationManager::Instance().ValueOf("address"); if(cfgAddress.empty()) FailedToConnect("Configuration value missing: address"); auto address = inet_addr(cfgAddress.c_str()); if(address == -1) FailedToConnect("Invalid address: " + cfgAddress); auto cfgPort = ConfigurationManager::Instance().ValueOf("port"); if(cfgPort.empty()) FailedToConnect("Configuration value missing: port"); auto port = htons(stoi(cfgPort)); auto result = std::make_unique<Connection>(address, port); if(!result->IsOK()) FailedToConnect("Failed to connect: " + cfgAddress + ":" + cfgPort); return result; }

Page 37: Clean Coders Hate What Happens To Your Code When You Use These Enterprise Programming Tricks

std::unique_ptr<Connection> CreateServerConnection() { auto cfgAddress = Configuration::Instance().ValueOf("address"); if(cfgAddress.empty()) FailedToConnect("Configuration value missing: address"); auto address = inet_addr(cfgAddress.c_str()); if(address == -1) FailedToConnect("Invalid address: " + cfgAddress); auto cfgPort = Configuration::Instance().ValueOf("port"); if(cfgPort.empty()) FailedToConnect("Configuration value missing: port"); auto port = htons(stoi(cfgPort)); auto result = std::make_unique<Connection>(address, port); if(!result->IsOK()) FailedToConnect("Failed to connect: " + cfgAddress + ":" + cfgPort); return result; }

Page 38: Clean Coders Hate What Happens To Your Code When You Use These Enterprise Programming Tricks

std::unique_ptr<Connection> CreateServerConnection( const std::string & cfgAddress, const std::string & cfgPort) { if(cfgAddress.empty()) FailedToConnect("Configuration value missing: address"); auto address = inet_addr(cfgAddress.c_str()); if(address == -1) FailedToConnect("Invalid address: " + cfgAddress); if(cfgPort.empty()) FailedToConnect("Configuration value missing: port"); auto port = htons(stoi(cfgPort)); auto result = std::make_unique<Connection>(address, port); if(!result->IsOK()) FailedToConnect("Failed to connect: " + cfgAddress + ":" + cfgPort); return result; }

Page 39: Clean Coders Hate What Happens To Your Code When You Use These Enterprise Programming Tricks

std::unique_ptr<Connection> CreateServerConnection( in_addr_t address, in_port_t port) { auto result = std::make_unique<Connection>(address, port); if(!result->IsOK()) FailedToConnect(address, port); return result; }

Page 40: Clean Coders Hate What Happens To Your Code When You Use These Enterprise Programming Tricks

std::unique_ptr<Connection> ConnectToServer(in_addr_t address, in_port_t port) { auto result = std::make_unique<Connection>(address, port); if(!result->IsOK()) FailedToConnect(address, port); return result; }

Page 41: Clean Coders Hate What Happens To Your Code When You Use These Enterprise Programming Tricks

std::unique_ptr<Connection> ConnectToServer(in_addr_t address, in_port_t port) { return std::make_unique<Connection>(address, port); }

Page 42: Clean Coders Hate What Happens To Your Code When You Use These Enterprise Programming Tricks
Page 43: Clean Coders Hate What Happens To Your Code When You Use These Enterprise Programming Tricks

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