C++ StringSeq::empty方法代码示例

IceBox::ServiceManagerI::ServiceManagerI(CommunicatorPtr communicator, int& argc, char* argv[]) :
    _communicator(communicator),
    _adminEnabled(false),
    _pendingStatusChanges(false),
    _traceServiceObserver(0)
{
#ifndef ICE_CPP11_MAPPING
    const_cast<CallbackPtr&>(_observerCompletedCB) = newCallback(this, &ServiceManagerI::observerCompleted);
#endif
    _logger = _communicator->getLogger();

    PropertiesPtr props = _communicator->getProperties();
    _traceServiceObserver = props->getPropertyAsInt("IceBox.Trace.ServiceObserver");

    if(props->getProperty("Ice.Admin.Enabled") == "")
    {
        _adminEnabled = props->getProperty("Ice.Admin.Endpoints") != "";
    }
    else
    {
        _adminEnabled = props->getPropertyAsInt("Ice.Admin.Enabled") > 0;
    }

    if(_adminEnabled)
    {
        StringSeq facetSeq = props->getPropertyAsList("Ice.Admin.Facets");
        if(!facetSeq.empty())
        {
            _adminFacetFilter.insert(facetSeq.begin(), facetSeq.end());
        }
    }

    for(int i = 1; i < argc; i++)
    {
        _argv.push_back(argv[i]);
    }
}

int
Activator::activate(const string& name,
                    const string& exePath,
                    const string& pwdPath,
#ifndef _WIN32
                    uid_t uid,
                    gid_t gid,
#endif
                    const Ice::StringSeq& options,
                    const Ice::StringSeq& envs,
                    const ServerIPtr& server)
{
    IceUtil::Monitor< IceUtil::Mutex>::Lock sync(*this);

    if(_deactivating)
    {
        throw string("The node is being shutdown.");
    }

    string path = exePath;
    if(path.empty())
    {
        throw string("The server executable path is empty.");
    }

    string pwd = IcePatch2Internal::simplify(pwdPath);
#ifdef _WIN32
    if(!IceUtilInternal::isAbsolutePath(path))
    {
        if(path.find('/') == string::npos)
        {
            //
            // Get the absolute pathname of the executable.
            //
            wchar_t absbuf[_MAX_PATH];
            wchar_t* fPart;
            wstring ext = path.size() <= 4 || path[path.size() - 4] != '.' ? L".exe" : L"";

            //
            // IceGrid doesn't support to use string converters, so don't need to use
            // any string converter in wstringToString conversions.
            //
            if(SearchPathW(NULL, IceUtil::stringToWstring(path).c_str(), ext.c_str(), _MAX_PATH, absbuf, &fPart) == 0)
            {
                if(_traceLevels->activator > 0)
                {
                    Trace out(_traceLevels->logger, _traceLevels->activatorCat);
                    out << "couldn't find `" << path << "' executable.";
                }
                throw string("Couldn't find `" + path + "' executable.");
            }
            path = IceUtil::wstringToString(absbuf);
        }
        else if(!pwd.empty())
        {
            path = pwd + "/" + path;
        }
    }

    //
    // Get the absolute pathname of the working directory.
    //
    // IceGrid doesn't support to use string converters, so
    // don't need to use any string converter in stringToWstring
    // conversions.
    //
    if(!pwd.empty())
    {
        wchar_t absbuf[_MAX_PATH];
        if(_wfullpath(absbuf, IceUtil::stringToWstring(pwd).c_str(), _MAX_PATH) == NULL)
        {
            if(_traceLevels->activator > 0)
            {
                Trace out(_traceLevels->logger, _traceLevels->activatorCat);
                out << "cannot convert `" << pwd << "' into an absolute path";
            }
            throw string("The server working directory path `" + pwd + "' can't be converted into an absolute path.");
        }
        pwd = IceUtil::wstringToString(absbuf);
    }
#endif

    //
    // Setup arguments.
    //
    StringSeq args;
    args.push_back(path);
    args.insert(args.end(), options.begin(), options.end());

    if(_traceLevels->activator > 0)
    {
        Ice::Trace out(_traceLevels->logger, _traceLevels->activatorCat);
        out << "activating server `" << name << "'";
        if(_traceLevels->activator > 1)
        {
            out << "\n";
            out << "path = " << path << "\n";
            if(pwd.empty())
            {
                string cwd;
//.........这里部分代码省略.........

int
Client::run(int argc, char* argv[])
{
    IceUtilInternal::Options opts;
    opts.addOpt("h", "help");
    opts.addOpt("v", "version");
    opts.addOpt("d", "debug");
    opts.addOpt("", "import", IceUtilInternal::Options::NeedArg);
    opts.addOpt("", "export", IceUtilInternal::Options::NeedArg);
    opts.addOpt("", "dbhome", IceUtilInternal::Options::NeedArg);
    opts.addOpt("", "dbpath", IceUtilInternal::Options::NeedArg);
    opts.addOpt("", "mapsize", IceUtilInternal::Options::NeedArg);
    opts.addOpt("", "server-version", IceUtilInternal::Options::NeedArg);

    vector<string> args;
    try
    {
        args = opts.parse(argc, const_cast<const char**>(argv));
    }
    catch(const IceUtilInternal::BadOptException& e)
    {
        cerr << e.reason << endl;
        usage();
        return EXIT_FAILURE;
    }
    if(!args.empty())
    {
        cerr << argv[0] << ": too many arguments" << endl;
        usage();
        return EXIT_FAILURE;
    }

    if(opts.isSet("help"))
    {
        usage();
        return EXIT_SUCCESS;
    }

    if(opts.isSet("version"))
    {
        cout << ICE_STRING_VERSION << endl;
        return EXIT_SUCCESS;
    }

    if(!(opts.isSet("import") ^ opts.isSet("export")))
    {
        cerr << "Either --import or --export must be set" << endl;
        usage();
        return EXIT_FAILURE;
    }

    if(!(opts.isSet("dbhome") ^ opts.isSet("dbpath")))
    {
        cerr << "Set the database environment directory with either --dbhome or --dbpath" << endl;
        usage();
        return EXIT_FAILURE;
    }

    bool debug = opts.isSet("debug");
    bool import = opts.isSet("import");
    string dbFile = opts.optArg(import ? "import" : "export");
    string dbPath;
    if(opts.isSet("dbhome"))
    {
        dbPath = opts.optArg("dbhome");
    }
    else
    {
        dbPath = opts.optArg("dbpath");
    }

    string mapSizeStr = opts.optArg("mapsize");
    size_t mapSize = IceDB::getMapSize(atoi(mapSizeStr.c_str()));
    string serverVersion = opts.optArg("server-version");

    try
    {
        IceGrid::AllData data;

        IceDB::IceContext dbContext;
        dbContext.communicator = communicator();
        dbContext.encoding.major = 1;
        dbContext.encoding.minor = 1;

        if(import)
        {
            cout << "Importing database to directory `" << dbPath << "' from file `" << dbFile << "'" << endl;

            if(!IceUtilInternal::directoryExists(dbPath))
            {
                cerr << "Output directory does not exist: " << dbPath << endl;
                return EXIT_FAILURE;
            }

            StringSeq files = IcePatch2Internal::readDirectory(dbPath);
            if(!files.empty())
            {
                cerr << "Output directory is not empty: " << dbPath << endl;
                return EXIT_FAILURE;
            }
//.........这里部分代码省略.........

void
Ice::PluginManagerI::loadPlugin(const string& name, const string& pluginSpec, StringSeq& cmdArgs)
{
    assert(_communicator);

    string entryPoint;
    StringSeq args;
    if(!pluginSpec.empty())
    {
        //
        // Split the entire property value into arguments. An entry point containing spaces
        // must be enclosed in quotes.
        //
        try
        {
            args = IceUtilInternal::Options::split(pluginSpec);
        }
        catch(const IceUtilInternal::BadOptException& ex)
        {
            PluginInitializationException e(__FILE__, __LINE__);
            e.reason = "invalid arguments for plug-in `" + name + "':\n" + ex.reason;
            throw e;
        }

        assert(!args.empty());

        //
        // Shift the arguments.
        //
        entryPoint = args[0];
        args.erase(args.begin());

        //
        // Convert command-line options into properties. First we
        // convert the options from the plug-in configuration, then
        // we convert the options from the application command-line.
        //
        PropertiesPtr properties = _communicator->getProperties();
        args = properties->parseCommandLineOptions(name, args);
        cmdArgs = properties->parseCommandLineOptions(name, cmdArgs);
    }

    PluginFactory factory = 0;
    DynamicLibraryPtr library;

    //
    // Always check the static plugin factory table first, it takes
    // precedence over the the entryPoint specified in the plugin
    // property value.
    //
    if(factories)
    {
        map<string, PluginFactory>::const_iterator p = factories->find(name);
        if(p != factories->end())
        {
            factory = p->second;
        }
    }

    //
    // If we didn't find the factory, get the factory using the entry
    // point symbol.
    //
    if(!factory)
    {
        assert(!entryPoint.empty());
        library = new DynamicLibrary();
        DynamicLibrary::symbol_type sym = library->loadEntryPoint(entryPoint);
        if(sym == 0)
        {
            ostringstream out;
            string msg = library->getErrorMessage();
            out << "unable to load entry point `" << entryPoint << "'";
            if(!msg.empty())
            {
                out << ": " + msg;
            }
            PluginInitializationException ex(__FILE__, __LINE__);
            ex.reason = out.str();
            throw ex;
        }

#ifdef __IBMCPP__
    // xlC warns when casting a void* to function pointer
#   pragma report(disable, "1540-0216")
#endif

        factory = reinterpret_cast<PluginFactory>(sym);
    }

    //
    // Invoke the factory function. No exceptions can be raised
    // by the factory function because it's declared extern "C".
    //
    PluginPtr plugin(factory(_communicator, name, args));
    if(!plugin)
    {
        PluginInitializationException e(__FILE__, __LINE__);
        ostringstream out;
        out << "failure in entry point `" << entryPoint << "'";
//.........这里部分代码省略.........

int
main(int argc, char* argv[])

#endif
{
    Ice::StringSeq originalArgs = Ice::argsToStringSeq(argc, argv);
    assert(originalArgs.size() > 0);
    const string appName = originalArgs[0];
    string dataDir;
    StringSeq fileSeq;
    int compress = 1;
    bool verbose;
    bool caseInsensitive;

    IceUtilInternal::Options opts;
    opts.addOpt("h", "help");
    opts.addOpt("v", "version");
    opts.addOpt("z", "compress");
    opts.addOpt("Z", "no-compress");
    opts.addOpt("V", "verbose");
    opts.addOpt("i", "case-insensitive");
    
    vector<string> args;
    try
    {
        args = opts.parse(originalArgs);
    }
    catch(const IceUtilInternal::BadOptException& e)
    {
        cerr << e.reason << endl;
        usage(appName);
        return EXIT_FAILURE;
    }

    if(opts.isSet("help"))
    {
        usage(appName);
        return EXIT_SUCCESS;
    }
    if(opts.isSet("version"))
    {
        cout << ICE_STRING_VERSION << endl;
        return EXIT_SUCCESS;
    }
    bool doCompress = opts.isSet("compress");
    bool dontCompress = opts.isSet("no-compress");
    if(doCompress && dontCompress)
    {
        cerr << appName << ": only one of -z and -Z are mutually exclusive" << endl;
        usage(appName);
        return EXIT_FAILURE;
    }
    if(doCompress)
    {
        compress = 2;
    }
    else if(dontCompress)
    {
        compress = 0;
    }
    verbose = opts.isSet("verbose");
    caseInsensitive = opts.isSet("case-insensitive");

    if(args.empty())
    {
        cerr << appName << ": no data directory specified" << endl;
        usage(appName);
        return EXIT_FAILURE;
    }
    dataDir = simplify(args[0]);

    for(vector<string>::size_type i = 1; i < args.size(); ++i)
    {
        fileSeq.push_back(simplify(args[i]));
    }

    try
    {
        string absDataDir = dataDir;
    
        string cwd;
        if(IceUtilInternal::getcwd(cwd) != 0)
        {
            throw "cannot get the current directory:\n" + IceUtilInternal::lastErrorToString();
        }

        if(!IceUtilInternal::isAbsolutePath(absDataDir))
        {
            absDataDir = simplify(cwd + '/' + absDataDir);
        }
        
        for(StringSeq::iterator p = fileSeq.begin(); p != fileSeq.end(); ++p)
        {
            if(!IceUtilInternal::isAbsolutePath(*p))
            {
                *p = cwd + '/' + *p;
            }
        }

        //
//.........这里部分代码省略.........