the begginning

tools/getConfig/main.cpp

@@ -0,0 +1,154 @@
+/* Copyright (C) 2014 InfiniDB, Inc.
+
+   This program is free software; you can redistribute it and/or
+   modify it under the terms of the GNU General Public License
+   as published by the Free Software Foundation; version 2 of
+   the License.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+   MA 02110-1301, USA. */
+
+/*****************************************************************************
+* $Id: main.cpp 2101 2013-01-21 14:12:52Z rdempsey $
+*
+*****************************************************************************/
+#include <iostream>
+#include <cassert>
+#include <unistd.h>
+using namespace std;
+
+#include "logger.h"
+#include "loggingid.h"
+#include "messagelog.h"
+#include <syslog.h>
+#include <exception>
+#include "configcpp.h"
+using namespace config;
+
+namespace
+{
+
+void usage(const string& pname)
+{
+	cout << "usage: " << pname << " [-vh] [-c config_file] section param" << endl <<
+		"   Displays configuration variable param from section section." << endl <<
+		"   -c config_file use config file config_file" << endl <<
+		"   -a display all configuration values" << endl <<
+		"   -i display all configuration values in .ini-file format (implies -a)" << endl <<
+		"   -v display verbose information" << endl <<
+		"   -h display this help text" << endl;
+}
+
+}
+
+int main(int argc, char** argv)
+{
+	int c;
+	string pname(argv[0]);
+	bool vflg = false;
+	string configFile;
+	bool aflg = false;
+	bool iflg = false;
+
+	opterr = 0;
+
+	while ((c = getopt(argc, argv, "c:vaih")) != EOF)
+		switch (c)
+		{
+		case 'v':
+			vflg = true;
+			break;
+		case 'c':
+			configFile = optarg;
+			break;
+		case 'a':
+			aflg = true;
+			break;
+		case 'i':
+			iflg = aflg = true;
+			break;
+		case 'h':
+		case '?':
+		default:
+			usage(pname);
+			return (c == 'h' ? 0 : 1);
+			break;
+		}
+
+	if (!aflg && ( (argc - optind) < 2 ))
+	{
+		usage(pname);
+		return 1;
+	}
+
+    try
+    {
+        openlog("getConfig", LOG_CONS | LOG_PID | LOG_NDELAY, LOG_USER);
+		Config* cf;
+		if (configFile.length() > 0)
+			cf = Config::makeConfig(configFile);
+		else
+			cf = Config::makeConfig();
+
+		if (vflg)
+		{
+			cout << "Using config file: " << cf->configFile() << endl;
+		}
+
+		if (aflg)
+		{
+			vector<string> secs;
+			vector<string> parms;
+			secs = cf->enumConfig();
+			vector<string>::iterator siter;
+			vector<string>::iterator send;
+			vector<string>::iterator piter;
+			vector<string>::iterator pend;
+			siter = secs.begin();
+			send = secs.end();
+			while (siter != send)
+			{
+				if (iflg)
+					cout << '[' << *siter << ']' << endl;
+				parms = cf->enumSection(*siter);
+				piter = parms.begin();
+				pend = parms.end();
+				while (piter != pend)
+				{
+					if (iflg)
+						cout << *piter << " = " << cf->getConfig(*siter, *piter) << endl;
+					else
+						cout << *siter << '.' << *piter << " = " <<
+							cf->getConfig(*siter, *piter) << endl;
+					++piter;
+				}
+				++siter;
+				if (iflg)
+					cout << endl;
+			}
+			return 0;
+		}
+
+		cout << cf->getConfig(argv[optind + 0], argv[optind + 1]) << endl;
+        closelog();
+    }
+    catch(exception &e)
+    {
+        syslog(LOG_ERR, "Exception in getConfig for %s %s : %s", argv[optind + 0], argv[optind + 1], e.what());
+        closelog(); 
+    }
+    catch(...)
+    {
+        syslog(LOG_ERR, "Exception in getConfig for %s %s : Unknown exception", argv[optind + 0], argv[optind + 1]);
+        closelog();
+	}
+	return 0;
+}
+