MXS-1220: Take the resource handler into use

The resource handler system is now usable but it doesn't perform anything
useful. Although, this will allows it to be tested for correctness.

Minor fixes to HttpResponse output and renaming of functions.

server/core/maxscale/httprequest.hh

@@ -18,6 +18,7 @@
 #include <map>
 #include <string>
 #include <tr1/memory>
+#include <cstdint>
 
 #include <maxscale/jansson.hh>
 #include <maxscale/utils.hh>
@@ -132,24 +133,37 @@ public:
     }
 
     /**
-     * @brief Get request resource
+     * @brief Get complete request URI
      *
-     * @return The request resource
+     * @return The complete request URI
      */
-    const string& get_resource() const
+    const string& get_uri() const
     {
         return m_resource;
     }
 
     /**
-     * @brief Get request resource parts
+     * @brief Get URI part
      *
-     * @return The request resource split into parts
+     * @param idx Zero indexed part number in URI
+     *
+     * @return The request URI part or empty string if no part was found
      */
-    const deque<string>& get_resource_parts() const
+    const string uri_part(uint32_t idx) const
     {
-        return m_resource_parts;
+        return m_resource_parts.size() > idx ? m_resource_parts[idx] : "";
     }
+
+    /**
+     * @brief Return how many parts are in the URI
+     *
+     * @return Number of URI parts
+     */
+    size_t uri_part_count() const
+    {
+        return m_resource_parts.size();
+    }
+
 private:
     HttpRequest();
     HttpRequest(const HttpRequest&);