chromium/third_party/protobuf/src/google/protobuf/util/json_util.h

// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc.  All rights reserved.
// https://developers.google.com/protocol-buffers/
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// in the documentation and/or other materials provided with the
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// Utility functions to convert between protobuf binary format and proto3 JSON
// format.
#ifndef GOOGLE_PROTOBUF_UTIL_JSON_UTIL_H__
#define GOOGLE_PROTOBUF_UTIL_JSON_UTIL_H__

#include <google/protobuf/stubs/bytestream.h>
#include <google/protobuf/stubs/status.h>
#include <google/protobuf/stubs/strutil.h>
#include <google/protobuf/message.h>
#include <google/protobuf/util/type_resolver.h>

// Must be included last.
#include <google/protobuf/port_def.inc>

namespace google {
namespace protobuf {
namespace io {
class ZeroCopyInputStream;
class ZeroCopyOutputStream;
}  // namespace io
namespace util {

struct JsonParseOptions { … };

struct JsonPrintOptions { … };

// DEPRECATED. Use JsonPrintOptions instead.
JsonOptions;

// Converts from protobuf message to JSON and appends it to |output|. This is a
// simple wrapper of BinaryToJsonString(). It will use the DescriptorPool of the
// passed-in message to resolve Any types.
PROTOBUF_EXPORT util::Status MessageToJsonString(const Message& message,
                                                 std::string* output,
                                                 const JsonOptions& options);

inline util::Status MessageToJsonString(const Message& message,
                                        std::string* output) { … }

// Converts from JSON to protobuf message. This is a simple wrapper of
// JsonStringToBinary(). It will use the DescriptorPool of the passed-in
// message to resolve Any types.
PROTOBUF_EXPORT util::Status JsonStringToMessage(
    StringPiece input, Message* message, const JsonParseOptions& options);

inline util::Status JsonStringToMessage(StringPiece input,
                                        Message* message) { … }

// Converts protobuf binary data to JSON.
// The conversion will fail if:
//   1. TypeResolver fails to resolve a type.
//   2. input is not valid protobuf wire format, or conflicts with the type
//      information returned by TypeResolver.
// Note that unknown fields will be discarded silently.
PROTOBUF_EXPORT util::Status BinaryToJsonStream(
    TypeResolver* resolver, const std::string& type_url,
    io::ZeroCopyInputStream* binary_input,
    io::ZeroCopyOutputStream* json_output, const JsonPrintOptions& options);

inline util::Status BinaryToJsonStream(TypeResolver* resolver,
                                       const std::string& type_url,
                                       io::ZeroCopyInputStream* binary_input,
                                       io::ZeroCopyOutputStream* json_output) { … }

PROTOBUF_EXPORT util::Status BinaryToJsonString(
    TypeResolver* resolver, const std::string& type_url,
    const std::string& binary_input, std::string* json_output,
    const JsonPrintOptions& options);

inline util::Status BinaryToJsonString(TypeResolver* resolver,
                                       const std::string& type_url,
                                       const std::string& binary_input,
                                       std::string* json_output) { … }

// Converts JSON data to protobuf binary format.
// The conversion will fail if:
//   1. TypeResolver fails to resolve a type.
//   2. input is not valid JSON format, or conflicts with the type
//      information returned by TypeResolver.
PROTOBUF_EXPORT util::Status JsonToBinaryStream(
    TypeResolver* resolver, const std::string& type_url,
    io::ZeroCopyInputStream* json_input,
    io::ZeroCopyOutputStream* binary_output, const JsonParseOptions& options);

inline util::Status JsonToBinaryStream(
    TypeResolver* resolver, const std::string& type_url,
    io::ZeroCopyInputStream* json_input,
    io::ZeroCopyOutputStream* binary_output) { … }

PROTOBUF_EXPORT util::Status JsonToBinaryString(
    TypeResolver* resolver, const std::string& type_url,
    StringPiece json_input, std::string* binary_output,
    const JsonParseOptions& options);

inline util::Status JsonToBinaryString(TypeResolver* resolver,
                                       const std::string& type_url,
                                       StringPiece json_input,
                                       std::string* binary_output) { … }

namespace internal {
// Internal helper class. Put in the header so we can write unit-tests for it.
class PROTOBUF_EXPORT ZeroCopyStreamByteSink : public strings::ByteSink { … };
}  // namespace internal

}  // namespace util
}  // namespace protobuf
}  // namespace google

#include <google/protobuf/port_undef.inc>

#endif  // GOOGLE_PROTOBUF_UTIL_JSON_UTIL_H__