kicad/thirdparty/json_schema_validator/json-patch.cpp

116 lines
3.2 KiB
C++

#include "json-patch.hpp"
#include <nlohmann/json-schema.hpp>
namespace
{
// originally from http://jsonpatch.com/, http://json.schemastore.org/json-patch
// with fixes
const nlohmann::json patch_schema = R"patch({
"title": "JSON schema for JSONPatch files",
"$schema": "http://json-schema.org/draft-04/schema#",
"type": "array",
"items": {
"oneOf": [
{
"additionalProperties": false,
"required": [ "value", "op", "path"],
"properties": {
"path" : { "$ref": "#/definitions/path" },
"op": {
"description": "The operation to perform.",
"type": "string",
"enum": [ "add", "replace", "test" ]
},
"value": {
"description": "The value to add, replace or test."
}
}
},
{
"additionalProperties": false,
"required": [ "op", "path"],
"properties": {
"path" : { "$ref": "#/definitions/path" },
"op": {
"description": "The operation to perform.",
"type": "string",
"enum": [ "remove" ]
}
}
},
{
"additionalProperties": false,
"required": [ "from", "op", "path" ],
"properties": {
"path" : { "$ref": "#/definitions/path" },
"op": {
"description": "The operation to perform.",
"type": "string",
"enum": [ "move", "copy" ]
},
"from": {
"$ref": "#/definitions/path",
"description": "A JSON Pointer path pointing to the location to move/copy from."
}
}
}
]
},
"definitions": {
"path": {
"description": "A JSON Pointer path.",
"type": "string"
}
}
})patch"_json;
} // namespace
namespace nlohmann
{
json_patch::json_patch(json &&patch)
: j_(std::move(patch))
{
validateJsonPatch(j_);
}
json_patch::json_patch(const json &patch)
: j_(std::move(patch))
{
validateJsonPatch(j_);
}
json_patch &json_patch::add(const json::json_pointer &ptr, json value)
{
j_.push_back(json{{"op", "add"}, {"path", ptr}, {"value", std::move(value)}});
return *this;
}
json_patch &json_patch::replace(const json::json_pointer &ptr, json value)
{
j_.push_back(json{{"op", "replace"}, {"path", ptr}, {"value", std::move(value)}});
return *this;
}
json_patch &json_patch::remove(const json::json_pointer &ptr)
{
j_.push_back(json{{"op", "remove"}, {"path", ptr}});
return *this;
}
void json_patch::validateJsonPatch(json const &patch)
{
// static put here to have it created at the first usage of validateJsonPatch
static nlohmann::json_schema::json_validator patch_validator(patch_schema);
patch_validator.validate(patch);
for (auto const &op : patch)
json::json_pointer(op["path"].get<std::string>());
}
} // namespace nlohmann