89 lines
3.7 KiB
C++
89 lines
3.7 KiB
C++
// Licensed to the Apache Software Foundation (ASF) under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations
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// under the License.
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// protobuf-json: Conversions between protobuf and json.
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#ifndef BRPC_JSON2PB_JSON_TO_PB_H
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#define BRPC_JSON2PB_JSON_TO_PB_H
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#include "json2pb/zero_copy_stream_reader.h"
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#include <google/protobuf/message.h>
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#include <google/protobuf/io/zero_copy_stream.h> // ZeroCopyInputStream
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namespace json2pb {
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struct Json2PbOptions {
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Json2PbOptions();
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// Decode string in json using base64 decoding if the type of
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// corresponding field is bytes when this option is turned on.
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// Default: false for baidu-interal, true otherwise.
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bool base64_to_bytes;
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// Allow decoding json array iff there is only one repeated field.
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// Default: false.
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bool array_to_single_repeated;
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// Allow more bytes remaining in the input after parsing the first json
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// object. Useful when the input contains more than one json object.
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bool allow_remaining_bytes_after_parsing;
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};
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// Convert `json' to protobuf `message'.
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// Returns true on success. `error' (if not NULL) will be set with error
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// message on failure.
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//
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// [When options.allow_remaining_bytes_after_parsing is true]
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// * `parse_offset' will be set with #bytes parsed
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// * the function still returns false on empty document but the `error' is set
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// to empty string instead of `The document is empty'.
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bool JsonToProtoMessage(const std::string& json,
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google::protobuf::Message* message,
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const Json2PbOptions& options,
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std::string* error = nullptr,
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size_t* parsed_offset = nullptr);
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// Use ZeroCopyInputStream as input instead of std::string.
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bool JsonToProtoMessage(google::protobuf::io::ZeroCopyInputStream *json,
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google::protobuf::Message *message,
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const Json2PbOptions &options,
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std::string *error = nullptr,
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size_t *parsed_offset = nullptr);
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// Use ZeroCopyStreamReader as input instead of std::string.
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// If you need to parse multiple jsons from IOBuf, you should use this
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// overload instead of the ZeroCopyInputStream one which bases on this
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// and recreates a ZeroCopyStreamReader internally that can't be reused
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// between continuous calls.
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bool JsonToProtoMessage(ZeroCopyStreamReader *json,
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google::protobuf::Message* message,
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const Json2PbOptions& options,
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std::string* error = nullptr,
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size_t* parsed_offset = nullptr);
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// Using default Json2PbOptions.
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bool JsonToProtoMessage(const std::string& json,
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google::protobuf::Message* message,
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std::string* error = nullptr);
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bool JsonToProtoMessage(google::protobuf::io::ZeroCopyInputStream* stream,
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google::protobuf::Message* message,
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std::string* error = nullptr);
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} // namespace json2pb
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#endif // BRPC_JSON2PB_JSON_TO_PB_H
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