mirror of https://gitee.com/bigwinds/arangodb
112 lines
4.0 KiB
C++
112 lines
4.0 KiB
C++
////////////////////////////////////////////////////////////////////////////////
|
|
/// DISCLAIMER
|
|
///
|
|
/// Copyright 2014-2016 ArangoDB GmbH, Cologne, Germany
|
|
/// Copyright 2004-2014 triAGENS GmbH, Cologne, Germany
|
|
///
|
|
/// Licensed under the Apache License, Version 2.0 (the "License");
|
|
/// you may not use this file except in compliance with the License.
|
|
/// You may obtain a copy of the License at
|
|
///
|
|
/// http://www.apache.org/licenses/LICENSE-2.0
|
|
///
|
|
/// Unless required by applicable law or agreed to in writing, software
|
|
/// distributed under the License is distributed on an "AS IS" BASIS,
|
|
/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
/// See the License for the specific language governing permissions and
|
|
/// limitations under the License.
|
|
///
|
|
/// Copyright holder is ArangoDB GmbH, Cologne, Germany
|
|
///
|
|
/// @author Michael Hackstein
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
#ifndef LIB_BASICS_VELOCY_PACK_HELPER_H
|
|
#define LIB_BASICS_VELOCY_PACK_HELPER_H 1
|
|
|
|
#include "Basics/JsonHelper.h"
|
|
|
|
#include <velocypack/Slice.h>
|
|
#include <velocypack/velocypack-aliases.h>
|
|
|
|
namespace triagens {
|
|
namespace basics {
|
|
|
|
class VelocyPackHelper {
|
|
private:
|
|
VelocyPackHelper() = delete;
|
|
~VelocyPackHelper() = delete;
|
|
|
|
public:
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
/// @brief returns a numeric value
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
template <typename T>
|
|
static T getNumericValue(VPackSlice const& slice, T defaultValue) {
|
|
if (slice.isNumber()) {
|
|
return slice.getNumber<T>();
|
|
}
|
|
return defaultValue;
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
/// @brief returns a numeric sub-element, or a default if it does not exist
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
template <typename T>
|
|
static T getNumericValue(VPackSlice const& slice, char const* name,
|
|
T defaultValue) {
|
|
VPackSlice sub = slice.get(name);
|
|
if (sub.isNumber()) {
|
|
return sub.getNumber<T>();
|
|
}
|
|
return defaultValue;
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
/// @brief returns a boolean sub-element, or a default if it does not exist
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
static bool getBooleanValue(VPackSlice const&, char const*, bool);
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
/// @brief returns a string sub-element, or throws if <name> does not exist
|
|
/// or it is not a string
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
static std::string checkAndGetStringValue(VPackSlice const&, char const*);
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
/// @brief returns a string sub-element, or the default value if it does not
|
|
/// exist
|
|
/// or it is not a string
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
static std::string getStringValue(VPackSlice const&, char const*,
|
|
std::string const&);
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
/// @brief Build TRI_json_t from VelocyPack. Just a temporary solution
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
static TRI_json_t* velocyPackToJson(VPackSlice const&);
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
/// @brief parses a json file to VelocyPack
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
static std::shared_ptr<VPackBuilder> velocyPackFromFile(std::string const&);
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
/// @brief writes a VelocyPack to a file
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
static bool velocyPackToFile(char const*, VPackSlice const&, bool);
|
|
};
|
|
}
|
|
}
|
|
|
|
#endif
|
|
|