PragmaTwice commented on code in PR #1829:
URL: https://github.com/apache/kvrocks/pull/1829#discussion_r1367215984
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src/types/json.h:
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@@ -23,10 +23,51 @@
#include <jsoncons/json.hpp>
#include <jsoncons/json_error.hpp>
#include <jsoncons_ext/jsonpath/json_query.hpp>
+#include <jsoncons_ext/jsonpath/jsonpath_error.hpp>
-#include "jsoncons_ext/jsonpath/jsonpath_error.hpp"
#include "status.h"
+class JsonPath {
+ public:
+ using JsonType = jsoncons::json;
+ using JsonPathExpression = jsoncons::jsonpath::jsonpath_expression<JsonType,
const JsonType &>;
+
+ static constexpr std::string_view ROOT_PATH = "$";
+
+ static StatusOr<JsonPath> BuildJsonPath(std::string_view path);
+
+ bool IsLegacy() const noexcept { return is_legacy_; }
+
+ std::string_view Path() const { return path_; }
+
+ bool IsRootPath() const { return Path() == ROOT_PATH; }
+
+ JsonType EvalJsonQuery(const JsonType &json_value) const {
+ return expression_.evaluate(const_cast<JsonType &>(json_value));
+ }
Review Comment:
Could it return multiple query result? e.g. query `$..a` from
`{"a":{"a":1}}`, we'll get `{"a":1}` and `1`.
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