Files
scylladb/cql3/functions/bytes_conversion_fcts.hh
Avi Kivity 5937b1fa23 treewide: remove empty comments in top-of-files
After fcb8d040 ("treewide: use Software Package Data Exchange
(SPDX) license identifiers"), many dual-licensed files were
left with empty comments on top. Remove them to avoid visual
noise.

Closes #10562
2022-05-13 07:11:58 +02:00

77 lines
2.2 KiB
C++

/*
* Modified by ScyllaDB
*
* Copyright (C) 2015-present ScyllaDB
*/
/*
* SPDX-License-Identifier: (AGPL-3.0-or-later and Apache-2.0)
*/
#pragma once
#include "native_scalar_function.hh"
#include "exceptions/exceptions.hh"
#include <seastar/core/print.hh>
#include "cql3/cql3_type.hh"
#include "cql_serialization_format.hh"
namespace cql3 {
namespace functions {
// Most of the XAsBlob and blobAsX functions are basically no-op since everything is
// bytes internally. They only "trick" the type system.
inline
shared_ptr<function>
make_to_blob_function(data_type from_type) {
auto name = from_type->as_cql3_type().to_string() + "asblob";
return make_native_scalar_function<true>(name, bytes_type, { from_type },
[] (cql_serialization_format sf, const std::vector<bytes_opt>& parameters) {
return parameters[0];
});
}
inline
shared_ptr<function>
make_from_blob_function(data_type to_type) {
sstring name = sstring("blobas") + to_type->as_cql3_type().to_string();
return make_native_scalar_function<true>(name, to_type, { bytes_type },
[name, to_type] (cql_serialization_format sf, const std::vector<bytes_opt>& parameters) -> bytes_opt {
auto&& val = parameters[0];
if (!val) {
return val;
}
try {
to_type->validate(*val, sf);
return val;
} catch (marshal_exception& e) {
using namespace exceptions;
throw invalid_request_exception(format("In call to function {}, value 0x{} is not a valid binary representation for type {}",
name, to_hex(val), to_type->as_cql3_type().to_string()));
}
});
}
inline
shared_ptr<function>
make_varchar_as_blob_fct() {
return make_native_scalar_function<true>("varcharasblob", bytes_type, { utf8_type },
[] (cql_serialization_format sf, const std::vector<bytes_opt>& parameters) -> bytes_opt {
return parameters[0];
});
}
inline
shared_ptr<function>
make_blob_as_varchar_fct() {
return make_native_scalar_function<true>("blobasvarchar", utf8_type, { bytes_type },
[] (cql_serialization_format sf, const std::vector<bytes_opt>& parameters) -> bytes_opt {
return parameters[0];
});
}
}
}