From 8c96ca6142435f798d3cb8164c4521def19e9181 Mon Sep 17 00:00:00 2001
From: Guilherme Maciel Ferreira <guilherme.maciel.ferreira@gmail.com>
Date: Mon, 12 Sep 2011 23:02:51 -0300
Subject: [PATCH] Bring aboard "nameserver" configuration option class.

---
 src/config/option/nameserveroption.cpp |   72 ++++++++++++++++++++++++++++++++
 src/config/option/nameserveroption.h   |   52 +++++++++++++++++++++++
 2 files changed, 124 insertions(+), 0 deletions(-)
 create mode 100644 src/config/option/nameserveroption.cpp
 create mode 100644 src/config/option/nameserveroption.h

diff --git a/src/config/option/nameserveroption.cpp b/src/config/option/nameserveroption.cpp
new file mode 100644
index 0000000..e2c6832
--- /dev/null
+++ b/src/config/option/nameserveroption.cpp
@@ -0,0 +1,72 @@
+/*
+ The software in this package is distributed under the GNU General
+ Public License version 2 (with a special exception described below).
+
+ A copy of GNU General Public License (GPL) is included in this distribution,
+ in the file COPYING.GPL.
+
+ As a special exception, if other files instantiate templates or use macros
+ or inline functions from this file, or you compile this file and link it
+ with other works to produce a work based on this file, this file
+ does not by itself cause the resulting work to be covered
+ by the GNU General Public License.
+
+ However the source code for this file must still be made available
+ in accordance with section (3) of the GNU General Public License.
+
+ This exception does not invalidate any other reasons why a work based
+ on this file might be covered by the GNU General Public License.
+ */
+
+#include "config/option/nameserveroption.h"
+
+#include <logfunc.hpp>
+
+using namespace std;
+using boost::program_options::value;
+using boost::program_options::variables_map;
+using I2n::Logger::GlobalLogger;
+
+//-----------------------------------------------------------------------------
+// NameserverOption
+//-----------------------------------------------------------------------------
+
+NameserverOption::NameserverOption() :
+    ConfigurationOption(
+        "nameserver",
+        value<string>()->default_value( "127.0.0.1" ),
+        "The local address from where the DNS query will be made."
+    )
+{
+}
+
+NameserverOption::~NameserverOption()
+{
+}
+
+bool NameserverOption::validate( const variables_map& vm ) const
+{
+    bool is_valid = ( vm.count( get_command_string() ) > 0 );
+
+    return is_valid;
+}
+
+bool NameserverOption::parse(
+        const variables_map& vm,
+        Configuration *configuration
+) const
+{
+    // nameserver
+    if ( vm.count( get_command_string() ) > 0 )
+    {
+        string nameserver = vm[ get_command_string() ].as<string> ();
+        configuration->set_nameserver( nameserver );
+
+        GlobalLogger.info() << get_command_string() << "="
+                << nameserver << endl;
+
+        return true;
+    }
+
+    return false;
+}
diff --git a/src/config/option/nameserveroption.h b/src/config/option/nameserveroption.h
new file mode 100644
index 0000000..581180d
--- /dev/null
+++ b/src/config/option/nameserveroption.h
@@ -0,0 +1,52 @@
+/*
+ The software in this package is distributed under the GNU General
+ Public License version 2 (with a special exception described below).
+
+ A copy of GNU General Public License (GPL) is included in this distribution,
+ in the file COPYING.GPL.
+
+ As a special exception, if other files instantiate templates or use macros
+ or inline functions from this file, or you compile this file and link it
+ with other works to produce a work based on this file, this file
+ does not by itself cause the resulting work to be covered
+ by the GNU General Public License.
+
+ However the source code for this file must still be made available
+ in accordance with section (3) of the GNU General Public License.
+
+ This exception does not invalidate any other reasons why a work based
+ on this file might be covered by the GNU General Public License.
+ */
+
+#ifndef NAMESERVER_OPTION_H
+#define NAMESERVER_OPTION_H
+
+#include <boost/program_options.hpp>
+
+#include "config/option/configurationoption.h"
+
+//-----------------------------------------------------------------------------
+// NameserverOption
+//-----------------------------------------------------------------------------
+
+/**
+ * @brief This class represents the "nameserver" configuration option.
+ */
+class NameserverOption : public ConfigurationOption
+{
+public:
+    NameserverOption();
+    virtual ~NameserverOption();
+
+    virtual bool validate(
+            const boost::program_options::variables_map &vm
+    ) const;
+
+    virtual bool parse(
+            const boost::program_options::variables_map &vm,
+            Configuration *configuration
+    ) const;
+
+};
+
+#endif // NAMESERVER_OPTION_H
-- 
1.7.1