tools: refactor nfd-status

refs #3658

Change-Id: Ia347074bea802eba5f539208e276e849a60db8a4
diff --git a/tools/nfd-status/rib-module.cpp b/tools/nfd-status/rib-module.cpp
new file mode 100644
index 0000000..fe254cc
--- /dev/null
+++ b/tools/nfd-status/rib-module.cpp
@@ -0,0 +1,133 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2014-2016,  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 "rib-module.hpp"
+#include "format-helpers.hpp"
+
+namespace nfd {
+namespace tools {
+namespace nfd_status {
+
+void
+RibModule::fetchStatus(Controller& controller,
+                       const function<void()>& onSuccess,
+                       const Controller::CommandFailCallback& onFailure,
+                       const CommandOptions& options)
+{
+  controller.fetch<ndn::nfd::RibDataset>(
+    [this, onSuccess] (const std::vector<RibEntry>& result) {
+      m_status = result;
+      onSuccess();
+    },
+    onFailure, options);
+}
+
+void
+RibModule::formatStatusXml(std::ostream& os) const
+{
+  os << "<rib>";
+  for (const RibEntry& item : m_status) {
+    this->formatItemXml(os, item);
+  }
+  os << "</rib>";
+}
+
+void
+RibModule::formatItemXml(std::ostream& os, const RibEntry& item) const
+{
+  os << "<ribEntry>";
+
+  os << "<prefix>" << xml::Text{item.getName().toUri()} << "</prefix>";
+
+  os << "<routes>";
+  for (const Route& route : item.getRoutes()) {
+    os << "<route>"
+       << "<faceId>" << route.getFaceId() << "</faceId>"
+       << "<origin>" << route.getOrigin() << "</origin>"
+       << "<cost>" << route.getCost() << "</cost>";
+    if (route.getFlags() == ndn::nfd::ROUTE_FLAGS_NONE) {
+       os << "<flags/>";
+    }
+    else {
+       os << "<flags>";
+      if (route.isChildInherit()) {
+        os << "<childInherit/>";
+      }
+      if (route.isRibCapture()) {
+        os << "<ribCapture/>";
+      }
+      os << "</flags>";
+    }
+    if (!route.hasInfiniteExpirationPeriod()) {
+      os << "<expirationPeriod>"
+         << xml::formatDuration(route.getExpirationPeriod())
+         << "</expirationPeriod>";
+    }
+    os << "</route>";
+  }
+  os << "</routes>";
+
+  os << "</ribEntry>";
+}
+
+void
+RibModule::formatStatusText(std::ostream& os) const
+{
+  os << "RIB:\n";
+  for (const RibEntry& item : m_status) {
+    this->formatItemText(os, item);
+  }
+}
+
+void
+RibModule::formatItemText(std::ostream& os, const RibEntry& item) const
+{
+  os << "  " << item.getName() << " route={";
+
+  text::Separator sep(", ");
+  for (const Route& route : item.getRoutes()) {
+    os << sep
+       << "faceid=" << route.getFaceId()
+       << " (origin=" << route.getOrigin()
+       << " cost=" << route.getCost();
+    if (!route.hasInfiniteExpirationPeriod()) {
+      os << " expires=" << text::formatDuration(route.getExpirationPeriod());
+    }
+    if (route.isChildInherit()) {
+      os << " ChildInherit";
+    }
+    if (route.isRibCapture()) {
+      os << " RibCapture";
+    }
+    os << ")";
+  }
+
+  os << "}";
+  os << "\n";
+}
+
+} // namespace nfd_status
+} // namespace tools
+} // namespace nfd