Zone abstraction

Change-Id: Icbced73072f08270149fcbad34a7cee1be01fa9d
diff --git a/src/zone.cpp b/src/zone.cpp
new file mode 100644
index 0000000..7d0a7d5
--- /dev/null
+++ b/src/zone.cpp
@@ -0,0 +1,46 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2014, Regents of the University of California.
+ *
+ * This file is part of NDNS (Named Data Networking Domain Name Service).
+ * See AUTHORS.md for complete list of NDNS authors and contributors.
+ *
+ * NDNS 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.
+ *
+ * NDNS 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
+ * NDNS, e.g., in COPYING.md file.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "zone.hpp"
+
+namespace ndn {
+namespace ndns {
+
+Zone::Zone()
+  : m_id(0)
+{
+}
+
+Zone::Zone(const Name& name)
+  : m_id(0)
+  , m_name(name)
+{
+}
+
+
+std::ostream&
+operator<<(std::ostream& os, const Zone& zone)
+{
+  os << "Zone: Id=" << zone.getId()
+     << " Name=" << zone.getName().toUri();
+  return os;
+}
+
+} // namespace ndns
+} // namespace ndn
diff --git a/src/zone.hpp b/src/zone.hpp
new file mode 100644
index 0000000..4f490da
--- /dev/null
+++ b/src/zone.hpp
@@ -0,0 +1,98 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2014, Regents of the University of California.
+ *
+ * This file is part of NDNS (Named Data Networking Domain Name Service).
+ * See AUTHORS.md for complete list of NDNS authors and contributors.
+ *
+ * NDNS 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.
+ *
+ * NDNS 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
+ * NDNS, e.g., in COPYING.md file.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef NDNS_ZONE_HPP
+#define NDNS_ZONE_HPP
+
+#include <ndn-cxx/name.hpp>
+#include <iostream>
+
+namespace ndn {
+namespace ndns {
+
+/**
+ * @brief DNS Zone abstraction, which delegates records
+ * @see http://en.wikipedia.org/wiki/DNS_zone
+ * @see http://irl.cs.ucla.edu/data/files/theses/afanasyev-thesis.pdf
+ *
+ * The class is copyable, since it may be assigned to another Zone instance
+ *  when resolving Response or Query from database
+ */
+class Zone
+{
+public:
+  Zone();
+
+  /**
+   * @brief create a Zone instance
+   */
+  explicit
+  Zone(const Name& name);
+
+  const Name&
+  getName() const
+  {
+    return m_name;
+  }
+
+  void
+  setName(const Name& name)
+  {
+    m_name = name;
+  }
+
+  uint32_t
+  getId() const
+  {
+    return m_id;
+  }
+
+  void
+  setId(uint32_t id)
+  {
+    m_id = id;
+  }
+
+  bool
+  operator==(const Zone& other) const
+  {
+    return (m_name == other.getName());
+  }
+
+private:
+  /**
+   * @brief the id when the rr is stored in the database
+   *  default value is 0, the database has to guarantee that id is greater than 0.
+   */
+  uint32_t m_id;
+
+  /**
+   * @brief the zone's name, which means all its
+   *    delegated subzones or labels are under this namespace
+   */
+  Name m_name;
+};
+
+std::ostream&
+operator<<(std::ostream& os, const Zone& zone);
+
+} // namespace ndns
+} // namespace ndn
+
+#endif // NDNS_ZONE_HPP
diff --git a/tests/boost-test.hpp b/tests/boost-test.hpp
index 8590524..b900be4 100644
--- a/tests/boost-test.hpp
+++ b/tests/boost-test.hpp
@@ -5,6 +5,8 @@
 #pragma GCC system_header
 #pragma clang system_header
 
+#include "logger.hpp"
+
 #include <boost/test/test_tools.hpp>
 #include <boost/test/unit_test.hpp>
 #include <boost/concept_check.hpp>
diff --git a/tests/unit/zone.cpp b/tests/unit/zone.cpp
new file mode 100644
index 0000000..3acc4ec
--- /dev/null
+++ b/tests/unit/zone.cpp
@@ -0,0 +1,53 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2014, Regents of the University of California.
+ *
+ * This file is part of NDNS (Named Data Networking Domain Name Service).
+ * See AUTHORS.md for complete list of NDNS authors and contributors.
+ *
+ * NDNS 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.
+ *
+ * NDNS 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
+ * NDNS, e.g., in COPYING.md file.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "zone.hpp"
+#include "../boost-test.hpp"
+
+#include <ndn-cxx/name.hpp>
+
+namespace ndn {
+namespace ndns {
+namespace tests {
+
+
+BOOST_AUTO_TEST_SUITE(ZoneTest)
+
+BOOST_AUTO_TEST_CASE(TestCase)
+{
+  Name zoneName("/net/ndnsim");
+  Zone zone1;
+  zone1.setName(zoneName);
+  zone1.setId(2);
+
+  Zone zone2(zoneName);
+  Zone zone3("/net/ndnsim");
+
+  BOOST_CHECK_EQUAL(zone1, zone2);
+  BOOST_CHECK_EQUAL(zone3, zone2);
+  BOOST_CHECK_EQUAL(zone2.getName(), zone3.getName());
+  BOOST_CHECK_EQUAL(zone1.getId(), 2);
+  BOOST_CHECK_EQUAL(zone1.getName(), zoneName);
+}
+
+BOOST_AUTO_TEST_SUITE_END()
+
+} // namespace tests
+} // namespace ndns
+} // namespace ndn