Files
scylladb/cql3/functions/bytes_conversion_fcts.hh
Avi Kivity fcb8d040e8 treewide: use Software Package Data Exchange (SPDX) license identifiers
Instead of lengthy blurbs, switch to single-line, machine-readable
standardized (https://spdx.dev) license identifiers. The Linux kernel
switched long ago, so there is strong precedent.

Three cases are handled: AGPL-only, Apache-only, and dual licensed.
For the latter case, I chose (AGPL-3.0-or-later and Apache-2.0),
reasoning that our changes are extensive enough to apply our license.

The changes we applied mechanically with a script, except to
licenses/README.md.

Closes #9937
2022-01-18 12:15:18 +01:00

80 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];
});
}
}
}