test/logging/memory_log_writer.cc

/*
 *  Copyright 2019 The WebRTC project authors. All Rights Reserved.
 *
 *  Use of this source code is governed by a BSD-style license
 *  that can be found in the LICENSE file in the root of the source
 *  tree. An additional intellectual property rights grant can be found
 *  in the file PATENTS.  All contributing project authors may
 *  be found in the AUTHORS file in the root of the source tree.
 */
#include "test/logging/memory_log_writer.h"

#include <map>
#include <memory>
#include <string>
#include <utility>

#include "absl/strings/string_view.h"
#include "api/rtc_event_log_output.h"
#include "test/logging/log_writer.h"

namespace webrtc {
namespace {
class MemoryLogWriter final : public RtcEventLogOutput {
 public:
  explicit MemoryLogWriter(std::map<std::string, std::string>* target,
                           absl::string_view filename)
      : target_(target), filename_(filename) {}
  ~MemoryLogWriter() final { target_->insert({filename_, std::move(buffer_)}); }
  bool IsActive() const override { return true; }
  bool Write(absl::string_view value) override {
    buffer_.append(value.data(), value.size());
    return true;
  }
  void Flush() override {}

 private:
  std::map<std::string, std::string>* const target_;
  const std::string filename_;
  std::string buffer_;
};

class MemoryLogWriterFactory final : public LogWriterFactoryInterface {
 public:
  explicit MemoryLogWriterFactory(std::map<std::string, std::string>* target)
      : target_(target) {}
  ~MemoryLogWriterFactory() override {}
  std::unique_ptr<RtcEventLogOutput> Create(
      absl::string_view filename) override {
    return std::make_unique<MemoryLogWriter>(target_, filename);
  }

 private:
  std::map<std::string, std::string>* const target_;
};

}  // namespace

MemoryLogStorage::MemoryLogStorage() {}

MemoryLogStorage::~MemoryLogStorage() {}

std::unique_ptr<LogWriterFactoryInterface> MemoryLogStorage::CreateFactory() {
  return std::make_unique<MemoryLogWriterFactory>(&logs_);
}

// namespace webrtc_impl
}  // namespace webrtc