feat add json configuration

CMakeLists.txt

@@ -209,6 +209,7 @@ set(TILE_SRCS
     # "tile/rpc/server.cc"
     "tile/base/config/configuration.cc"
     "tile/base/config/ini_file_configuration.cc"
+    "tile/base/config/json_configuration.cc"
     "tile/base/config/layered_configuration.cc"
 )
 

tile/base/config/configurable.h

@@ -5,7 +5,6 @@
 #include "tile/base/string.h"
 
 namespace tile {
-namespace util {
 class Configurable {
   Configurable();
   virtual ~Configurable() = default;
@@ -13,7 +12,6 @@ class Configurable {
   virtual std::string GetProperty(const Slice &name) const = 0;
 };
 
-} // namespace util
 } // namespace tile
 
 #endif // TILE_BASE_CONFIG_CONFIGURABLE_H

tile/base/config/configuration.cc

@@ -2,7 +2,6 @@
 #include "tile/base/thread/unique_lock.h"
 
 namespace tile {
-namespace util {
 bool Configuration::Has(const Slice &key) const {
   UniqueLock<tile::Mutex> lock(mutex_);
   std::string value;
@@ -109,6 +108,4 @@ void Configuration::SetRawWithEvent(const Slice &key,
 
 Configuration::~Configuration() {}
 
-} // namespace util
-
 } // namespace tile

tile/base/config/configuration.h

@@ -11,7 +11,6 @@
 #include <cstdint>
 
 namespace tile {
-namespace util {
 class Configuration : public RefCounted<Configuration> {
 public:
   using Keys = std::vector<std::string>;
@@ -121,7 +120,6 @@ private:
   mutable Mutex mutex_;
   bool events_enabled_{false};
 };
-} // namespace util
 } // namespace tile
 
 #endif // TILE_BASE_CONFIG_CONFIGURATION_H

tile/base/config/ini_file_configuration.cc

@@ -2,7 +2,6 @@
 #include "tile/base/thread/scoped_lock.h"
 
 namespace tile {
-namespace util {
 
 IniFileConfiguration::IniFileConfiguration() {}
 // IniFileConfig::IniFileConfig(std::istream &istr) { load(istr); }
@@ -10,6 +9,10 @@ IniFileConfiguration::IniFileConfiguration() {}
 IniFileConfiguration::~IniFileConfiguration() {}
 
 bool IniFileConfiguration::load(std::istream &istr) {
+  if (!istr.good()) {
+    return false;
+  }
+
   Configuration::ScopedLock lock(*this);
   map_.clear();
   section_key_.clear();
@@ -20,11 +23,7 @@ bool IniFileConfiguration::load(std::istream &istr) {
 }
 bool IniFileConfiguration::load(const std::string &path) {
   std::ifstream istr(path);
-  if (istr.good()) {
   return load(istr);
-  } else {
-    return false;
-  }
 }
 bool IniFileConfiguration::GetRaw(const Slice &key, std::string *value) const {
   auto iter = map_.find(key.ToString());
@@ -141,5 +140,4 @@ bool IniFileConfiguration::ICompare::operator()(const std::string &s1,
   return strncmp(s1.c_str(), s2.c_str(), len) < 0;
 }
 
-} // namespace util
 } // namespace tile

tile/base/config/ini_file_configuration.h

@@ -7,7 +7,6 @@
 #include <map>
 
 namespace tile {
-namespace util {
 class IniFileConfiguration : public Configuration {
 public:
   using Ptr = RefPtr<IniFileConfiguration>;
@@ -34,7 +33,6 @@ private:
   IStringMap map_;
   std::string section_key_;
 };
-} // namespace util
 } // namespace tile
 
 #endif // TILE_BASE_CONFIG_INI_FILE_CONFIG_H

tile/base/config/ini_file_configuration_test.cc

@@ -16,7 +16,6 @@ a=4
 )";
 
 namespace tile {
-namespace util {
 
 static_assert(
     !detail::HasClassofImpl<IniFileConfiguration, Configuration>::value, "");
@@ -43,5 +42,4 @@ TEST(IniFileConfig, LoadFromIStream) {
   ASSERT_EQ(3, *config->GetInt("sec3.a"));
   ASSERT_EQ(4, *config->GetInt("sec2.kk.a"));
 }
-} // namespace util
 } // namespace tile

tile/base/config/json_configuration.cc

@@ -0,0 +1,128 @@
+#include "tile/base/config/json_configuration.h"
+#include "tile/base/logging.h"
+
+namespace tile {
+JSONConfiguration::JSONConfiguration() : object_() {}
+JSONConfiguration::~JSONConfiguration() {}
+
+bool JSONConfiguration::load(const std::string &path) {
+  std::ifstream istr(path);
+  return load(istr);
+}
+
+bool JSONConfiguration::load(std::istream &istr) {
+  if (!istr.good()) {
+    return false;
+  }
+
+  Configuration::ScopedLock _(*this);
+  object_.clear();
+  Json::Reader reader;
+  return reader.parse(istr, object_, true);
+}
+
+void JSONConfiguration::SetInt(const Slice &key, int value) {
+  SetValue(key, value);
+}
+
+void JSONConfiguration::SetBool(const Slice &key, bool value) {
+  SetValue(key, value);
+}
+
+void JSONConfiguration::SetDouble(const Slice &key, double value) {
+  SetValue(key, value);
+}
+
+void JSONConfiguration::SetString(const Slice &key, const std::string &value) {
+  SetValue(key, value);
+}
+
+void JSONConfiguration::RemoveRaw(const Slice &key) {
+  Configuration::ScopedLock _(*this);
+  Json::Value root;
+  Slice last_part;
+  if (!FindStart(key, &last_part, &root)) {
+    return;
+  }
+  root.removeMember(last_part.ToString());
+}
+
+bool JSONConfiguration::GetRaw(const Slice &key, std::string *value) const {
+  Configuration::ScopedLock _(*this);
+  auto keys = Split(key, '.');
+  auto root = object_;
+  for (std::size_t i = 0; i < keys.size(); ++i) {
+    const auto &cur_key = keys[i];
+    if (cur_key.empty()) {
+      TILE_LOG_ERROR("Invalid key: {}", key);
+      return false;
+    }
+    if (!object_.isMember(cur_key)) {
+      return false;
+    }
+    root = root[cur_key];
+  }
+
+  *value = root.asString();
+  return true;
+}
+
+bool JSONConfiguration::SetRaw(const Slice &key, const Slice &value) {
+  return SetValue(key, value.ToString());
+}
+
+Configuration::Keys JSONConfiguration::Enumerate(const Slice &range) const {
+  Configuration::ScopedLock _(*this);
+  Configuration::Keys key_set;
+
+  auto keys = Split(range, '.');
+  auto root = object_;
+  for (std::size_t i = 0; i < keys.size(); ++i) {
+    const auto &cur_key = keys[i];
+    if (cur_key.empty()) {
+      TILE_LOG_ERROR("Invalid range: {}", range);
+      return key_set;
+    }
+    if (!object_.isMember(cur_key)) {
+      return key_set;
+    }
+    root = root[cur_key];
+  }
+
+  for (const auto &key : root.getMemberNames()) {
+    key_set.push_back(key);
+  }
+  return key_set;
+}
+
+bool JSONConfiguration::FindStart(const Slice &key, Slice *last_part,
+                                  Json::Value *parent_obj) {
+  auto keys = Split(key, '.');
+  if (keys.empty()) {
+    return false;
+  }
+
+  auto root = object_;
+  for (std::size_t i = 0; i < keys.size() - 1; ++i) {
+    const auto &cur_key = keys[i];
+    if (cur_key.empty()) {
+      TILE_LOG_ERROR("Invalid key: {}", key);
+      return false;
+    }
+
+    if (!root.isMember(cur_key)) {
+      root[cur_key] = Json::Value(Json::objectValue);
+    } else if (!root[cur_key].isObject()) {
+      TILE_LOG_ERROR("only leaf nodes can be set: key: {}, cur_key(idx={}): {}",
+                     key, i, cur_key);
+      return false;
+    }
+    root = root[cur_key];
+  }
+
+  *last_part = keys.back();
+  *parent_obj = root;
+  return true;
+}
+
+} // namespace tile

tile/base/config/json_configuration.h

@@ -0,0 +1,48 @@
+#ifndef TILE_BASE_CONFIG_JSON_CONFIGURATION_H
+#define TILE_BASE_CONFIG_JSON_CONFIGURATION_H
+
+#pragma once
+
+#include "tile/base/config/configuration.h"
+#include "json/json.h"
+
+namespace tile {
+class JSONConfiguration : public Configuration {
+public:
+  using Ptr = RefPtr<JSONConfiguration>;
+  JSONConfiguration();
+  ~JSONConfiguration() override;
+  bool load(const std::string &path);
+  bool load(std::istream &istr);
+
+  void SetInt(const Slice &key, int value) override;
+  void SetBool(const Slice &key, bool value) override;
+  void SetDouble(const Slice &key, double value) override;
+  void SetString(const Slice &key, const std::string &value) override;
+  void RemoveRaw(const Slice &key) override;
+
+protected:
+  bool GetRaw(const Slice &key, std::string *value) const override;
+  bool SetRaw(const Slice &key, const Slice &value) override;
+  Keys Enumerate(const Slice &range) const override;
+
+private:
+  bool FindStart(const Slice &key, Slice *last_prt, Json::Value *parent_obj);
+  template <typename T> bool SetValue(const Slice &key, T value);
+  Json::Value object_;
+};
+
+template <typename T>
+bool JSONConfiguration::SetValue(const Slice &key, T value) {
+  Slice last_part;
+  Json::Value root;
+  Configuration::ScopedLock _(*this);
+  if (!FindStart(key, &last_part, &root)) {
+    return false;
+  }
+  root[last_part] = Json::Value(value);
+  return true;
+}
+} // namespace tile
+
+#endif // TILE_BASE_CONFIG_JSON_CONFIGURATION_H

tile/base/config/layered_configuration.cc

@@ -1,7 +1,6 @@
 #include "tile/base/config/layered_configuration.h"
 
 namespace tile {
-namespace util {
 
 LayeredConfiguration::LayeredConfiguration() {}
 LayeredConfiguration::~LayeredConfiguration() {}
@@ -129,5 +128,4 @@ int LayeredConfiguration::highest() const {
   }
 }
 
-} // namespace util
 } // namespace tile

tile/base/config/layered_configuration.h

@@ -7,7 +7,6 @@
 #include <list>
 
 namespace tile {
-namespace util {
 class LayeredConfiguration : public Configuration {
 public:
   using Ptr = RefPtr<LayeredConfiguration>;
@@ -51,7 +50,6 @@ private:
   using ConfigList = std::list<ConfigItem>;
   ConfigList configs_;
 };
-} // namespace util
 } // namespace tile
 
 #endif // TILE_BASE_CONFIG_LAYERED_CONFIGURATION_H

tile/tile.h

@@ -47,7 +47,6 @@
 #include "sigslot/sigslot.h"
 
 // Tile Init
-#include "mustache.hpp"
 #include "tile/init.h"
 
 #endif // TILE_TILE_H