begin hosts config data access

src/DataAccess/HostsConfig.cpp

@@ -0,0 +1,46 @@
+//
+// Created by robin on 8/8/15.
+//
+
+#include <json/json.h>
+#include <fstream>
+#include "HostsConfig.h"
+
+HostsConfig::HostsConfig(const std::string &filePath)
+    : _filePath(filePath)
+{
+}
+
+bool HostsConfig::readConfig()
+{
+    std::ifstream file(_filePath);
+    if (!file)
+        return false;
+    Json::Value root;
+    try
+    {
+        file >> root;
+        file.close();
+    }
+    catch (...)
+    {
+        file.close();
+        return false;
+    }
+    auto defaults = root["defaults"];
+    auto actions = root["actions"];
+    for (Json::ArrayIndex i = 0; i < actions.size(); ++i)
+    {
+        auto action = actions[i];
+        auto action_type = readValue(action, defaults, "action");
+    }
+    return true;
+}
+
+Json::Value HostsConfig::readValue(const Json::Value &value, const Json::Value &defaults, const std::string &name)
+{
+    auto v = value[name];
+    if (!v)
+        return defaults[name];
+    return v;
+}

src/DataAccess/HostsConfig.h

@@ -0,0 +1,23 @@
+//
+// Created by robin on 8/8/15.
+//
+
+#ifndef PDNS_SLAVE_HOSTSCONFIG_H
+#define PDNS_SLAVE_HOSTSCONFIG_H
+
+# include <string>
+
+class HostsConfig
+{
+public:
+    HostsConfig(const std::string& filePath);
+
+    bool readConfig();
+
+private:
+    Json::Value readValue(const Json::Value &value, const Json::Value &defaults, const std::string& name);
+    std::string _filePath;
+};
+
+
+#endif //PDNS_SLAVE_HOSTSCONFIG_H