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// Copyright 2019 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "util/json/json_writer.h"
#include <memory>
#include <sstream>
#include <string>
#include <utility>
#include "json/value.h"
#include "platform/base/error.h"
#include "util/logging.h"
namespace openscreen {
JsonWriter::JsonWriter() {
#ifndef _DEBUG
// Default is to "pretty print" the output JSON in a human readable
// format. On non-debug builds, we can remove pretty printing by simply
// getting rid of all indentation.
factory_["indentation"] = "";
#endif
}
ErrorOr<std::string> JsonWriter::Write(const Json::Value& value) {
if (value.empty()) {
return ErrorOr<std::string>(Error::Code::kJsonWriteError, "Empty value");
}
std::unique_ptr<Json::StreamWriter> const writer(factory_.newStreamWriter());
std::stringstream stream;
writer->write(value, &stream);
stream << std::endl;
if (!stream) {
// Note: jsoncpp doesn't give us more information about what actually
// went wrong, just says to "check the stream". However, failures on
// the stream should be rare, as we do not throw any errors in the jsoncpp
// library.
return ErrorOr<std::string>(Error::Code::kJsonWriteError, "Invalid stream");
}
return stream.str();
}
} // namespace openscreen
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