core: move nfd-specific files to daemon/
Refs: #4922
Change-Id: I2243dbb87c63f9cbaf7d7051d7a0d4bca2f9fdb5
diff --git a/daemon/common/config-file.cpp b/daemon/common/config-file.cpp
new file mode 100644
index 0000000..8d70349
--- /dev/null
+++ b/daemon/common/config-file.cpp
@@ -0,0 +1,138 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2014-2019, Regents of the University of California,
+ * Arizona Board of Regents,
+ * Colorado State University,
+ * University Pierre & Marie Curie, Sorbonne University,
+ * Washington University in St. Louis,
+ * Beijing Institute of Technology,
+ * The University of Memphis.
+ *
+ * This file is part of NFD (Named Data Networking Forwarding Daemon).
+ * See AUTHORS.md for complete list of NFD authors and contributors.
+ *
+ * NFD 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,
+ * either version 3 of the License, or (at your option) any later version.
+ *
+ * NFD 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
+ * NFD, e.g., in COPYING.md file. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "common/config-file.hpp"
+
+#include <boost/property_tree/info_parser.hpp>
+
+#include <fstream>
+#include <sstream>
+
+namespace nfd {
+
+ConfigFile::ConfigFile(UnknownConfigSectionHandler unknownSectionCallback)
+ : m_unknownSectionCallback(unknownSectionCallback)
+{
+}
+
+void
+ConfigFile::throwErrorOnUnknownSection(const std::string& filename,
+ const std::string& sectionName,
+ const ConfigSection& section,
+ bool isDryRun)
+{
+ NDN_THROW(Error("Error processing configuration file " + filename +
+ ": no module subscribed for section '" + sectionName + "'"));
+}
+
+void
+ConfigFile::ignoreUnknownSection(const std::string& filename,
+ const std::string& sectionName,
+ const ConfigSection& section,
+ bool isDryRun)
+{
+ // do nothing
+}
+
+bool
+ConfigFile::parseYesNo(const ConfigSection& node, const std::string& key,
+ const std::string& sectionName)
+{
+ auto value = node.get_value<std::string>();
+
+ if (value == "yes") {
+ return true;
+ }
+ else if (value == "no") {
+ return false;
+ }
+
+ NDN_THROW(Error("Invalid value '" + value + "' for option '" +
+ key + "' in section '" + sectionName + "'"));
+}
+
+void
+ConfigFile::addSectionHandler(const std::string& sectionName,
+ ConfigSectionHandler subscriber)
+{
+ m_subscriptions[sectionName] = subscriber;
+}
+
+void
+ConfigFile::parse(const std::string& filename, bool isDryRun)
+{
+ std::ifstream inputFile(filename);
+ if (!inputFile.good() || !inputFile.is_open()) {
+ NDN_THROW(Error("Failed to read configuration file " + filename));
+ }
+ parse(inputFile, isDryRun, filename);
+ inputFile.close();
+}
+
+void
+ConfigFile::parse(const std::string& input, bool isDryRun, const std::string& filename)
+{
+ std::istringstream inputStream(input);
+ parse(inputStream, isDryRun, filename);
+}
+
+void
+ConfigFile::parse(std::istream& input, bool isDryRun, const std::string& filename)
+{
+ try {
+ boost::property_tree::read_info(input, m_global);
+ }
+ catch (const boost::property_tree::info_parser_error& error) {
+ NDN_THROW(Error("Failed to parse configuration file " + filename +
+ ": " + error.message() + " on line " + to_string(error.line())));
+ }
+
+ process(isDryRun, filename);
+}
+
+void
+ConfigFile::parse(const ConfigSection& config, bool isDryRun, const std::string& filename)
+{
+ m_global = config;
+ process(isDryRun, filename);
+}
+
+void
+ConfigFile::process(bool isDryRun, const std::string& filename) const
+{
+ BOOST_ASSERT(!filename.empty());
+
+ for (const auto& i : m_global) {
+ try {
+ const ConfigSectionHandler& subscriber = m_subscriptions.at(i.first);
+ subscriber(i.second, isDryRun, filename);
+ }
+ catch (const std::out_of_range&) {
+ m_unknownSectionCallback(filename, i.first, i.second, isDryRun);
+ }
+ }
+}
+
+} // namespace nfd