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scylladb/cql3/functions/bytes_conversion_fcts.hh
Avi Kivity 775b7e41f4 Update seastar submodule
* seastar d59fcef...b924495 (2):
  > build: Fix protobuf generation rules
  > Merge "Restructure files" from Jesse

Includes fixup patch from Jesse:

"
Update Seastar `#include`s to reflect restructure

All Seastar header files are now prefixed with "seastar" and the
configure script reflects the new locations of files.

Signed-off-by: Jesse Haber-Kucharsky <jhaberku@scylladb.com>
Message-Id: <5d22d964a7735696fb6bb7606ed88f35dde31413.1542731639.git.jhaberku@scylladb.com>
"
2018-11-21 00:01:44 +02:00

107 lines
3.6 KiB
C++

/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* Modified by ScyllaDB
*
* Copyright (C) 2015 ScyllaDB
*/
/*
* This file is part of Scylla.
*
* Scylla is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Scylla is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Scylla. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include "native_scalar_function.hh"
#include "exceptions/exceptions.hh"
#include <seastar/core/print.hh>
#include "cql3/cql3_type.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);
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];
});
}
}
}