67 lines
1.6 KiB
C++
67 lines
1.6 KiB
C++
#pragma once
|
|
|
|
#include <string>
|
|
#include <istream>
|
|
#include <fstream>
|
|
#include <stdexcept>
|
|
#include <sstream>
|
|
|
|
// JSON-Schema includes
|
|
#include <utils/jsonschema/JsonSchemaChecker.h>
|
|
|
|
class JsonFactory
|
|
{
|
|
public:
|
|
|
|
static int load(const std::string& schema, const std::istream& config, Json::Value json);
|
|
|
|
static int load(const std::string& schema, const std::string& config, Json::Value& json)
|
|
{
|
|
// Load the schema and the config trees
|
|
Json::Value schemaTree = readJson(schema);
|
|
Json::Value configTree = readJson(config);
|
|
|
|
// create the validator
|
|
JsonSchemaChecker schemaChecker;
|
|
schemaChecker.setSchema(schemaTree);
|
|
|
|
bool valid = schemaChecker.validate(configTree);
|
|
for (const std::string& message : schemaChecker.getMessages())
|
|
{
|
|
std::cout << message << std::endl;
|
|
}
|
|
if (!valid)
|
|
{
|
|
std::cerr << "Validation failed for configuration file: " << config.c_str() << std::endl;
|
|
return -3;
|
|
}
|
|
|
|
json = configTree;
|
|
return 0;
|
|
}
|
|
|
|
static Json::Value readJson(const std::string& filename)
|
|
{
|
|
// Open the file input stream
|
|
std::ifstream ifs(filename.c_str());
|
|
return readJson(ifs);
|
|
}
|
|
|
|
static Json::Value readJson(std::istream& stream)
|
|
{
|
|
// will contains the root value after parsing.
|
|
Json::Value jsonTree;
|
|
|
|
Json::Reader reader;
|
|
if (! reader.parse(stream, jsonTree, false))
|
|
{
|
|
// report to the user the failure and their locations in the document.
|
|
std::stringstream sstream;
|
|
sstream << "Failed to parse configuration: " << reader.getFormattedErrorMessages().c_str();
|
|
|
|
throw std::runtime_error(sstream.str());
|
|
}
|
|
return jsonTree;
|
|
}
|
|
};
|