118 lines
3.1 KiB
C++
118 lines
3.1 KiB
C++
/*
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Copyright 2013 Statoil ASA.
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This file is part of the Open Porous Media project (OPM).
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OPM is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OPM is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with OPM. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <string>
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#include <iostream>
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#include <fstream>
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#include <stdexcept>
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#include <boost/filesystem/path.hpp>
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#include <opm/json/JsonObject.hpp>
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#include <opm/json/cjson/cJSON.h>
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namespace Json {
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void JsonObject::initialize(const std::string& inline_json) {
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root = cJSON_Parse( inline_json.c_str() );
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if (!root)
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throw std::invalid_argument("Parsing json input failed");
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owner = true;
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}
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JsonObject::JsonObject(const std::string& inline_json) {
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initialize( inline_json );
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}
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JsonObject::JsonObject(const char * inline_json) {
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initialize( inline_json );
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}
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JsonObject::JsonObject(const boost::filesystem::path& jsonFile ) {
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std::ifstream stream(jsonFile.string().c_str());
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if (stream) {
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std::string content( (std::istreambuf_iterator<char>(stream)),
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(std::istreambuf_iterator<char>()));
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std::cout << content;
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initialize( content );
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} else
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throw std::invalid_argument("Loading json from file: " + jsonFile.string() + " failed.");
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}
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JsonObject::JsonObject( cJSON * object ) {
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root = object;
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owner = false;
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}
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JsonObject::~JsonObject() {
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if (owner && root)
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cJSON_Delete(root);
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}
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bool JsonObject::has_item( const std::string& key) const {
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cJSON * object = cJSON_GetObjectItem( root , key.c_str() );
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if (object)
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return true;
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else
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return false;
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}
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std::string JsonObject::get_string(const std::string& key) {
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cJSON * object = cJSON_GetObjectItem( root , key.c_str() );
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if (object) {
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if (cJSON_GetArraySize( object ))
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throw std::invalid_argument("Key: " + key + " is not a scalar object");
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else
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return object->valuestring;
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} else
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throw std::invalid_argument("Key: " + key + " does not exist in json object");
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}
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size_t JsonObject::size() {
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int int_size = cJSON_GetArraySize( root );
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return (size_t) int_size;
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}
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JsonObject JsonObject::get_object(const std::string& key) {
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cJSON * object = cJSON_GetObjectItem( root , key.c_str() );
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if (object)
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return JsonObject( object );
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else
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throw std::invalid_argument("Key: " + key + " does not exist in json object");
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}
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}
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