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authorRajith Muditha Attapattu <rajith@apache.org>2011-05-27 15:44:23 +0000
committerRajith Muditha Attapattu <rajith@apache.org>2011-05-27 15:44:23 +0000
commit66765100f4257159622cefe57bed50125a5ad017 (patch)
treea88ee23bb194eb91f0ebb2d9b23ff423e3ea8e37 /cpp/src/qpid/Options.cpp
parent1aeaa7b16e5ce54f10c901d75c4d40f9f88b9db6 (diff)
parent88b98b2f4152ef59a671fad55a0d08338b6b78ca (diff)
downloadqpid-python-rajith_jms_client.tar.gz
Creating a branch for experimenting with some ideas for JMS client.rajith_jms_client
git-svn-id: https://svn.apache.org/repos/asf/qpid/branches/rajith_jms_client@1128369 13f79535-47bb-0310-9956-ffa450edef68
Diffstat (limited to 'cpp/src/qpid/Options.cpp')
-rw-r--r--cpp/src/qpid/Options.cpp200
1 files changed, 0 insertions, 200 deletions
diff --git a/cpp/src/qpid/Options.cpp b/cpp/src/qpid/Options.cpp
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--- a/cpp/src/qpid/Options.cpp
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-/*
- *
- * Copyright (c) 2006 The Apache Software Foundation
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- *
- */
-
-#include "qpid/Options.h"
-#include "qpid/Exception.h"
-
-#include <boost/bind.hpp>
-
-#include <fstream>
-#include <algorithm>
-#include <iostream>
-
-namespace qpid {
-
-using namespace std;
-
-
-namespace {
-
-struct EnvOptMapper {
- static bool matchChar(char env, char opt) {
- return (env==toupper(opt)) || (strchr("-.", opt) && env=='_');
- }
-
- static bool matchStr(const string& env, boost::shared_ptr<po::option_description> desc) {
- return desc->long_name().size() == env.size() &&
- std::equal(env.begin(), env.end(), desc->long_name().begin(), &matchChar);
- }
-
- static bool matchCase(const string& env, boost::shared_ptr<po::option_description> desc) {
- return env == desc->long_name();
- }
-
- EnvOptMapper(const Options& o) : opts(o) {}
-
- string operator()(const string& envVar) {
- static const std::string prefix("QPID_");
- if (envVar.substr(0, prefix.size()) == prefix) {
- string env = envVar.substr(prefix.size());
- typedef const std::vector< boost::shared_ptr<po::option_description> > OptDescs;
- OptDescs::const_iterator i =
- find_if(opts.options().begin(), opts.options().end(), boost::bind(matchStr, env, _1));
- if (i != opts.options().end())
- return (*i)->long_name();
- }
- return string();
- }
-
-
- bool
- isComment ( string const & str )
- {
- size_t i = str.find_first_not_of ( " \t" );
-
- if ( i == string::npos )
- return true;
-
- return str[i] == '#';
- }
-
-
- string configFileLine (string& line) {
-
- if ( isComment ( line ) )
- return string();
-
- size_t pos = line.find ('=');
- if (pos == string::npos)
- return string();
- string key = line.substr (0, pos);
-#if (BOOST_VERSION >= 103300)
- typedef const std::vector< boost::shared_ptr<po::option_description> > OptDescs;
- OptDescs::const_iterator i =
- find_if(opts.options().begin(), opts.options().end(), boost::bind(matchCase, key, _1));
- if (i != opts.options().end())
- return string (line) + "\n";
- else
- return string();
-#else
- // Use 'count' to see if this option exists. Using 'find' will SEGV or hang
- // if the option has not been defined yet.
- if ( opts.count(key.c_str()) > 0 )
- return string ( line ) + "\n";
- else
- return string ( );
-#endif
- }
-
- const Options& opts;
-};
-
-}
-std::string prettyArg(const std::string& name, const std::string& value) {
- return value.empty() ? name+" " : name+" ("+value+") ";
-}
-
-Options::Options(const string& name) :
- po::options_description(name)
-{
-}
-
-
-
-
-
-void Options::parse(int argc, char const* const* argv, const std::string& configFile, bool allowUnknown)
-{
- string defaultConfigFile = configFile; // May be changed by env/cmdline
- string parsing;
- try {
- po::variables_map vm;
- parsing="command line options";
- if (argc > 0 && argv != 0) {
- if (allowUnknown) {
- // This hideous workaround is required because boost 1.33 has a bug
- // that causes 'allow_unregistered' to not work.
- po::command_line_parser clp = po::command_line_parser(argc, const_cast<char**>(argv)).
- options(*this).allow_unregistered();
- po::parsed_options opts = clp.run();
- po::parsed_options filtopts = clp.run();
- filtopts.options.clear ();
- for (std::vector< po::basic_option<char> >::iterator i = opts.options.begin();
- i != opts.options.end(); i++)
- if (!i->unregistered)
- filtopts.options.push_back (*i);
- po::store(filtopts, vm);
-
- }
- else
- po::store(po::parse_command_line(argc, const_cast<char**>(argv), *this), vm);
- }
- parsing="environment variables";
- po::store(po::parse_environment(*this, EnvOptMapper(*this)), vm);
- po::notify(vm); // configFile may be updated from arg/env options.
- if (!configFile.empty()) {
- parsing="configuration file "+configFile;
- ifstream conf(configFile.c_str());
- if (conf.good()) {
- // Remove this hack when we get a stable version of boost that
- // can allow unregistered options in config files.
- EnvOptMapper mapper(*this);
- stringstream filtered;
-
- while (!conf.eof()) {
- string line;
- getline (conf, line);
- filtered << mapper.configFileLine (line);
- }
-
- po::store(po::parse_config_file(filtered, *this), vm);
- // End of hack
- }
- else {
- // No error if default configfile is missing/unreadable
- // but complain for non-default config file.
- if (configFile != defaultConfigFile)
- throw Exception("cannot read configuration file "
- +configFile);
- }
- }
- po::notify(vm);
- }
- catch (const std::exception& e) {
- ostringstream msg;
- msg << "Error in " << parsing << ": " << e.what() << endl;
-#if (BOOST_VERSION >= 103300)
- if (find_nothrow("help", false))
- msg << "Use --help to see valid options" << endl;
-#endif
- throw Exception(msg.str());
- }
-}
-
-CommonOptions::CommonOptions(const string& name, const string& configfile)
- : Options(name), config(configfile)
-{
- addOptions()
- ("help,h", optValue(help), "Displays the help message")
- ("version,v", optValue(version), "Displays version information")
- ("config", optValue(config, "FILE"), "Reads configuration from FILE");
-}
-
-
-} // namespace qpid
-