Implementation of GetTextById class.

platform/get_text_by_id.cpp

@@ -0,0 +1,54 @@
+#include "platform/get_text_by_id.hpp"
+#include "platform/platform.hpp"
+
+#include "base/logging.hpp"
+
+#include "3party/jansson/myjansson.hpp"
+
+
+namespace platform
+{
+GetTextById::GetTextById(string const & textsDir, string const & localeName)
+{
+  string const pathToJson = textsDir + "/" + localeName + ".json/localize.json";
+
+  string jsonBuffer;
+  ReaderPtr<Reader>(GetPlatform().GetReader(pathToJson)).ReadAsString(jsonBuffer);
+
+  if (jsonBuffer == "")
+  {
+    ASSERT(false, ("No json files found at the path", pathToJson));
+    return;
+  }
+
+  my::Json root(jsonBuffer.c_str());
+  if (root.get() == nullptr)
+  {
+    ASSERT(false, ("Cannot parse the json file found at the path", pathToJson));
+    return;
+  }
+
+  const char * key = nullptr;
+  json_t * value = nullptr;
+  json_object_foreach(root.get(), key, value)
+  {
+    ASSERT(key, ());
+    ASSERT(value, ());
+    const char * valueStr = json_string_value(value);
+    ASSERT(valueStr, ());
+    m_localeTexts[key] = valueStr;
+  }
+  ASSERT_EQUAL(m_localeTexts.size(), json_object_size(root.get()), ());
+}
+
+string GetTextById::operator()(string const & textId) const
+{
+  if (!IsValid())
+    return textId;
+
+  auto const textIt = m_localeTexts.find(textId);
+  if (textIt == m_localeTexts.end())
+    return textId;
+  return textIt->second;
+}
+}  // namespace platform

platform/get_text_by_id.hpp

@@ -0,0 +1,23 @@
+#pragma once
+
+#include <std/string.hpp>
+#include <std/unordered_map.hpp>
+
+
+namespace platform
+{
+
+/// GetTextById represents text messages which are saved in textsDir
+/// in a specified locale.
+class GetTextById
+{
+public:
+  GetTextById(string const & textsDir, string const & localeName);
+
+  bool IsValid() const { return !m_localeTexts.empty(); }
+  string operator()(string const & textId) const;
+
+private:
+  unordered_map<string, string> m_localeTexts;
+};
+}  // namespace platform

platform/platform.pro

@@ -67,6 +67,7 @@ HEADERS += \
     country_defines.hpp \
     country_file.hpp \
     file_logging.hpp \
+    get_text_by_id.hpp \
     http_request.hpp \
     http_thread_callback.hpp \
     local_country_file.hpp \
@@ -84,6 +85,7 @@ SOURCES += \
     country_defines.cpp \
     country_file.cpp \
     file_logging.cpp \
+    get_text_by_id.cpp \
     http_request.cpp \
     local_country_file.cpp \
     local_country_file_utils.cpp \