Extracting NetLog inner classes into their own classes.

net/log/net_log_with_source.cc

+// Copyright 2016 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 "net/log/net_log_with_source.h"
+
+#include <memory>
+#include <utility>
+
+#include "base/bind.h"
+#include "base/debug/alias.h"
+#include "base/logging.h"
+#include "base/strings/string_number_conversions.h"
+#include "base/values.h"
+#include "net/base/net_errors.h"
+#include "net/log/net_log.h"
+#include "net/log/net_log_capture_mode.h"
+
+namespace net {
+
+namespace {
+
+// Returns parameters for logging data transferred events. At a minimum includes
+// the number of bytes transferred. If the capture mode allows logging byte
+// contents and |byte_count| > 0, then will include the actual bytes. The
+// bytes are hex-encoded, since base::StringValue only supports UTF-8.
+std::unique_ptr<base::Value> BytesTransferredCallback(
+    int byte_count,
+    const char* bytes,
+    NetLogCaptureMode capture_mode) {
+  std::unique_ptr<base::DictionaryValue> dict(new base::DictionaryValue());
+  dict->SetInteger("byte_count", byte_count);
+  if (capture_mode.include_socket_bytes() && byte_count > 0)
+    dict->SetString("hex_encoded_bytes", base::HexEncode(bytes, byte_count));
+  return std::move(dict);
+}
+
+}  // namespace
+
+NetLogWithSource::~NetLogWithSource() {
+  liveness_ = DEAD;
+}
+
+void NetLogWithSource::AddEntry(NetLogEventType type,
+                                NetLogEventPhase phase) const {
+  CrashIfInvalid();
+
+  if (!net_log_)
+    return;
+  net_log_->AddEntry(type, source_, phase, NULL);
+}
+
+void NetLogWithSource::AddEntry(
+    NetLogEventType type,
+    NetLogEventPhase phase,
+    const NetLogParametersCallback& get_parameters) const {
+  CrashIfInvalid();
+
+  if (!net_log_)
+    return;
+  net_log_->AddEntry(type, source_, phase, &get_parameters);
+}
+
+void NetLogWithSource::AddEvent(NetLogEventType type) const {
+  AddEntry(type, NetLogEventPhase::NONE);
+}
+
+void NetLogWithSource::AddEvent(
+    NetLogEventType type,
+    const NetLogParametersCallback& get_parameters) const {
+  AddEntry(type, NetLogEventPhase::NONE, get_parameters);
+}
+
+void NetLogWithSource::BeginEvent(NetLogEventType type) const {
+  AddEntry(type, NetLogEventPhase::BEGIN);
+}
+
+void NetLogWithSource::BeginEvent(
+    NetLogEventType type,
+    const NetLogParametersCallback& get_parameters) const {
+  AddEntry(type, NetLogEventPhase::BEGIN, get_parameters);
+}
+
+void NetLogWithSource::EndEvent(NetLogEventType type) const {
+  AddEntry(type, NetLogEventPhase::END);
+}
+
+void NetLogWithSource::EndEvent(
+    NetLogEventType type,
+    const NetLogParametersCallback& get_parameters) const {
+  AddEntry(type, NetLogEventPhase::END, get_parameters);
+}
+
+void NetLogWithSource::AddEventWithNetErrorCode(NetLogEventType event_type,
+                                                int net_error) const {
+  DCHECK_NE(ERR_IO_PENDING, net_error);
+  if (net_error >= 0) {
+    AddEvent(event_type);
+  } else {
+    AddEvent(event_type, NetLog::IntCallback("net_error", net_error));
+  }
+}
+
+void NetLogWithSource::EndEventWithNetErrorCode(NetLogEventType event_type,
+                                                int net_error) const {
+  DCHECK_NE(ERR_IO_PENDING, net_error);
+  if (net_error >= 0) {
+    EndEvent(event_type);
+  } else {
+    EndEvent(event_type, NetLog::IntCallback("net_error", net_error));
+  }
+}
+
+void NetLogWithSource::AddByteTransferEvent(NetLogEventType event_type,
+                                            int byte_count,
+                                            const char* bytes) const {
+  AddEvent(event_type, base::Bind(BytesTransferredCallback, byte_count, bytes));
+}
+
+bool NetLogWithSource::IsCapturing() const {
+  CrashIfInvalid();
+  return net_log_ && net_log_->IsCapturing();
+}
+
+// static
+NetLogWithSource NetLogWithSource::Make(NetLog* net_log,
+                                        NetLogSourceType source_type) {
+  if (!net_log)
+    return NetLogWithSource();
+
+  NetLogSource source(source_type, net_log->NextID());
+  return NetLogWithSource(source, net_log);
+}
+
+void NetLogWithSource::CrashIfInvalid() const {
+  Liveness liveness = liveness_;
+
+  if (liveness == ALIVE)
+    return;
+
+  base::debug::Alias(&liveness);
+  CHECK_EQ(ALIVE, liveness);
+}
+
+}  // namespace net