GH #48: Need getArgs() accessor

GH #48: Need getArgs() accessor to Util::Application to retrieve
start-up arguments

Util/include/Poco/Util/Application.h

@@ -105,6 +105,8 @@ class Util_API Application: public Subsystem
 	/// Unicode command line arguments.
 {
 public:
+	typedef std::vector<std::string> ArgVec;
+
 	enum ExitCode
 		/// Commonly used exit status codes.
 		/// Based on the definitions in the 4.3BSD <sysexits.h> header file.
@@ -168,7 +170,7 @@ public:
 		/// Unicode command line arguments from wmain().
 #endif
 
-	void init(const std::vector<std::string>& args);
+	void init(const ArgVec& args);
 		/// Processes the application's command line arguments
 		/// and sets the application's properties (e.g., 
 		/// "application.path", "application.name", etc.).
@@ -265,6 +267,15 @@ public:
 		/// "application.logger" configuration property. If that property
 		/// is not specified, the logger is "Application".
 		
+	const ArgVec& argv() const;
+		/// Returns reference to vector of the application's arguments as 
+		/// specified on the command line. If user overrides the 
+		/// Application::main(const ArgVec&) function, it will receive
+		/// only the command line parameters that were not processed in
+		/// Application::processOptons(). This function returns the 
+		/// full set of command line parameters as received in
+		/// main(argc, argv*).
+		
 	const OptionSet& options() const;
 		/// Returns the application's option set.
 
@@ -367,7 +378,7 @@ protected:
 private:
 	void setup();
 	void setArgs(int argc, char* argv[]);
-	void setArgs(const std::vector<std::string>& args);
+	void setArgs(const ArgVec& args);
 	void getApplicationPath(Poco::Path& path) const;
 	void processOptions();
 	bool findAppConfigFile(const std::string& appName, const std::string& extension, Poco::Path& path) const;
@@ -375,13 +386,13 @@ private:
 	typedef Poco::AutoPtr<Subsystem> SubsystemPtr;
 	typedef std::vector<SubsystemPtr> SubsystemVec;
 	typedef Poco::AutoPtr<LayeredConfiguration> ConfigPtr;
-	typedef std::vector<std::string> ArgVec;
 	
 	ConfigPtr       _pConfig;
 	SubsystemVec    _subsystems;
 	bool            _initialized;
 	std::string     _command;
-	ArgVec          _args;
+	ArgVec          _argv;
+	ArgVec          _unprocessedArgs;
 	OptionSet       _options;
 	bool            _unixOptions;
 	Poco::Logger*   _pLogger;
@@ -435,6 +446,12 @@ inline Poco::Logger& Application::logger() const
 }
 
 
+inline const Application::ArgVec& Application::argv() const
+{
+	return _argv;
+}
+
+
 inline const OptionSet& Application::options() const
 {
 	return _options;

Util/samples/SampleApp/src/SampleApp.cpp

@@ -39,6 +39,7 @@
 #include "Poco/Util/AbstractConfiguration.h"
 #include "Poco/AutoPtr.h"
 #include <iostream>
+#include <sstream>
 
 
 using Poco::Util::Application;
@@ -154,12 +155,20 @@ protected:
 		config().setString(name, value);
 	}
 
-	int main(const std::vector<std::string>& args)
+	int main(const ArgVec& args)
 	{
 		if (!_helpRequested)
 		{
+			logger().information("Command line:");
+			const ArgVec argVec = argv();
+			std::ostringstream ostr;
+			for (ArgVec::const_iterator it = argVec.begin(); it != argVec.end(); ++it)
+			{
+				ostr << *it << ' ';
+			}
+			logger().information(ostr.str());
 			logger().information("Arguments to main():");
-			for (std::vector<std::string>::const_iterator it = args.begin(); it != args.end(); ++it)
+			for (ArgVec::const_iterator it = args.begin(); it != args.end(); ++it)
 			{
 				logger().information(*it);
 			}

Util/samples/SampleServer/src/SampleServer.cpp

@@ -123,7 +123,7 @@ protected:
 		helpFormatter.format(std::cout);
 	}
 
-	int main(const std::vector<std::string>& args)
+	int main(const ArgVec& args)
 	{
 		if (!_helpRequested)
 		{

Util/src/Application.cpp

@@ -167,7 +167,7 @@ void Application::init(int argc, wchar_t* argv[])
 #endif
 
 
-void Application::init(const std::vector<std::string>& args)
+void Application::init(const ArgVec& args)
 {
 	setArgs(args);
 	init();
@@ -316,7 +316,7 @@ int Application::run()
 	{
 		initialize(*this);
 		rc = EXIT_SOFTWARE;
-		rc = main(_args);
+		rc = main(_unprocessedArgs);
 		uninitialize();
 	}
 	catch (Poco::Exception& exc)
@@ -335,7 +335,7 @@ int Application::run()
 }
 
 
-int Application::main(const std::vector<std::string>& args)
+int Application::main(const ArgVec& args)
 {
 	return EXIT_OK;
 }
@@ -345,24 +345,24 @@ void Application::setArgs(int argc, char* argv[])
 {
 	_command = argv[0];
 	_pConfig->setInt("application.argc", argc);
-	_args.reserve(argc);
+	_unprocessedArgs.reserve(argc);
 	std::string argvKey = "application.argv[";
 	for (int i = 0; i < argc; ++i)
 	{
 		std::string arg(argv[i]);
 		_pConfig->setString(argvKey + NumberFormatter::format(i) + "]", arg);
-		_args.push_back(arg);
+		_unprocessedArgs.push_back(arg);
 	}
 }
 
 
-void Application::setArgs(const std::vector<std::string>& args)
+void Application::setArgs(const ArgVec& args)
 {
 	poco_assert (!args.empty());
 	
 	_command = args[0];
 	_pConfig->setInt("application.argc", (int) args.size());
-	_args = args;
+	_unprocessedArgs = args;
 	std::string argvKey = "application.argv[";
 	for (int i = 0; i < args.size(); ++i)
 	{
@@ -376,9 +376,10 @@ void Application::processOptions()
 	defineOptions(_options);
 	OptionProcessor processor(_options);
 	processor.setUnixStyle(_unixOptions);
-	_args.erase(_args.begin());
-	ArgVec::iterator it = _args.begin();
-	while (it != _args.end() && !_stopOptionsProcessing)
+	_argv = _unprocessedArgs;
+	_unprocessedArgs.erase(_unprocessedArgs.begin());
+	ArgVec::iterator it = _unprocessedArgs.begin();
+	while (it != _unprocessedArgs.end() && !_stopOptionsProcessing)
 	{
 		std::string name;
 		std::string value;
@@ -388,7 +389,7 @@ void Application::processOptions()
 			{
 				handleOption(name, value);
 			}
-			it = _args.erase(it);
+			it = _unprocessedArgs.erase(it);
 		}
 		else ++it;
 	}