Allow dumping all options in a configuration

include/cppkafka/configuration.h

@@ -33,8 +33,6 @@
 #include <memory>
 #include <string>
 #include <functional>
-#include <unordered_map>
-#include <unordered_set>
 #include <chrono>
 #include <boost/optional.hpp>
 #include <librdkafka/rdkafka.h>
@@ -149,6 +147,11 @@ public:
      */
     std::string get(const std::string& name) const;
 
+    /**
+     * Gets all options, including default values which are set by rdkafka
+     */
+    std::map<std::string, std::string> get_all() const;
+
     /**
      * Gets the delivery report callback
      */

include/cppkafka/configuration_base.h

@@ -31,6 +31,7 @@
 #define CPPKAFKA_CONFIGURATION_BASE_H
 
 #include <string>
+#include <map>
 
 namespace cppkafka {
 
@@ -59,6 +60,14 @@ public:
     void set(const std::string& name, const char* value) {
         proxy_set(name, value);
     }
+protected:
+    static std::map<std::string, std::string> parse_dump(const char** values, size_t count) {
+        std::map<std::string, std::string> output;
+        for (size_t i = 0; i < count; i += 2) {
+            output[values[i]] = values[i + 1];
+        }
+        return output;
+    }
 private:
     void proxy_set(const std::string& name, const std::string& value) {
         static_cast<Concrete&>(*this).set(name, value);

include/cppkafka/topic_configuration.h

@@ -109,6 +109,11 @@ public:
      */
     std::string get(const std::string& name) const;
 
+    /**
+     * Gets all options, including default values which are set by rdkafka
+     */
+    std::map<std::string, std::string> get_all() const;
+
     /**
      * Gets the rdkafka handle
      */