| OLD | NEW |
| (Empty) |
| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "sync/engine/traffic_recorder.h" | |
| 6 | |
| 7 #include "base/json/json_writer.h" | |
| 8 #include "base/logging.h" | |
| 9 #include "base/memory/scoped_ptr.h" | |
| 10 #include "base/values.h" | |
| 11 #include "sync/protocol/proto_value_conversions.h" | |
| 12 #include "sync/protocol/sync.pb.h" | |
| 13 #include "sync/sessions/sync_session.h" | |
| 14 #include "sync/util/time.h" | |
| 15 | |
| 16 namespace syncer { | |
| 17 | |
| 18 // Return current time. | |
| 19 base::Time TrafficRecorder::GetTime() { | |
| 20 return base::Time::Now(); | |
| 21 } | |
| 22 | |
| 23 TrafficRecorder::TrafficRecord::TrafficRecord(const std::string& message, | |
| 24 TrafficMessageType message_type, | |
| 25 bool truncated, | |
| 26 base::Time time) : | |
| 27 message(message), | |
| 28 message_type(message_type), | |
| 29 truncated(truncated), | |
| 30 timestamp(time) { | |
| 31 } | |
| 32 | |
| 33 TrafficRecorder::TrafficRecord::TrafficRecord() | |
| 34 : message_type(UNKNOWN_MESSAGE_TYPE), | |
| 35 truncated(false) { | |
| 36 } | |
| 37 | |
| 38 TrafficRecorder::TrafficRecord::~TrafficRecord() { | |
| 39 } | |
| 40 | |
| 41 TrafficRecorder::TrafficRecorder(unsigned int max_messages, | |
| 42 unsigned int max_message_size) | |
| 43 : max_messages_(max_messages), | |
| 44 max_message_size_(max_message_size) { | |
| 45 } | |
| 46 | |
| 47 TrafficRecorder::~TrafficRecorder() { | |
| 48 } | |
| 49 | |
| 50 namespace { | |
| 51 const char* GetMessageTypeString(TrafficRecorder::TrafficMessageType type) { | |
| 52 switch(type) { | |
| 53 case TrafficRecorder::CLIENT_TO_SERVER_MESSAGE: | |
| 54 return "Request"; | |
| 55 case TrafficRecorder::CLIENT_TO_SERVER_RESPONSE: | |
| 56 return "Response"; | |
| 57 default: | |
| 58 NOTREACHED(); | |
| 59 return ""; | |
| 60 } | |
| 61 } | |
| 62 } | |
| 63 | |
| 64 base::DictionaryValue* TrafficRecorder::TrafficRecord::ToValue() const { | |
| 65 scoped_ptr<base::DictionaryValue> value; | |
| 66 if (truncated) { | |
| 67 value.reset(new base::DictionaryValue()); | |
| 68 value->SetString("message_type", | |
| 69 GetMessageTypeString(message_type)); | |
| 70 value->SetBoolean("truncated", true); | |
| 71 } else if (message_type == TrafficRecorder::CLIENT_TO_SERVER_MESSAGE) { | |
| 72 sync_pb::ClientToServerMessage message_proto; | |
| 73 if (message_proto.ParseFromString(message)) | |
| 74 value.reset( | |
| 75 ClientToServerMessageToValue(message_proto, | |
| 76 false /* include_specifics */)); | |
| 77 } else if (message_type == TrafficRecorder::CLIENT_TO_SERVER_RESPONSE) { | |
| 78 sync_pb::ClientToServerResponse message_proto; | |
| 79 if (message_proto.ParseFromString(message)) | |
| 80 value.reset( | |
| 81 ClientToServerResponseToValue(message_proto, | |
| 82 false /* include_specifics */)); | |
| 83 } else { | |
| 84 NOTREACHED(); | |
| 85 } | |
| 86 | |
| 87 value->SetString("timestamp", GetTimeDebugString(timestamp)); | |
| 88 | |
| 89 return value.release(); | |
| 90 } | |
| 91 | |
| 92 | |
| 93 base::ListValue* TrafficRecorder::ToValue() const { | |
| 94 scoped_ptr<base::ListValue> value(new base::ListValue()); | |
| 95 std::deque<TrafficRecord>::const_iterator it; | |
| 96 for (it = records_.begin(); it != records_.end(); ++it) { | |
| 97 const TrafficRecord& record = *it; | |
| 98 value->Append(record.ToValue()); | |
| 99 } | |
| 100 | |
| 101 return value.release(); | |
| 102 } | |
| 103 | |
| 104 | |
| 105 void TrafficRecorder::AddTrafficToQueue(TrafficRecord* record) { | |
| 106 records_.resize(records_.size() + 1); | |
| 107 std::swap(records_.back(), *record); | |
| 108 | |
| 109 // We might have more records than our limit. | |
| 110 // Maintain the size invariant by deleting items. | |
| 111 while (records_.size() > max_messages_) { | |
| 112 records_.pop_front(); | |
| 113 } | |
| 114 } | |
| 115 | |
| 116 void TrafficRecorder::StoreProtoInQueue( | |
| 117 const ::google::protobuf::MessageLite& msg, | |
| 118 TrafficMessageType type) { | |
| 119 bool truncated = false; | |
| 120 std::string message; | |
| 121 if (static_cast<unsigned int>(msg.ByteSize()) >= max_message_size_) { | |
| 122 // TODO(lipalani): Trim the specifics to fit in size. | |
| 123 truncated = true; | |
| 124 } else { | |
| 125 msg.SerializeToString(&message); | |
| 126 } | |
| 127 | |
| 128 TrafficRecord record(message, type, truncated, GetTime()); | |
| 129 AddTrafficToQueue(&record); | |
| 130 } | |
| 131 | |
| 132 void TrafficRecorder::RecordClientToServerMessage( | |
| 133 const sync_pb::ClientToServerMessage& msg) { | |
| 134 StoreProtoInQueue(msg, CLIENT_TO_SERVER_MESSAGE); | |
| 135 } | |
| 136 | |
| 137 void TrafficRecorder::RecordClientToServerResponse( | |
| 138 const sync_pb::ClientToServerResponse& response) { | |
| 139 StoreProtoInQueue(response, CLIENT_TO_SERVER_RESPONSE); | |
| 140 } | |
| 141 | |
| 142 } // namespace syncer | |
| 143 | |
| OLD | NEW |