sync_data.cc revision 5821806d5e7f356e8fa4b058a389a808ea183019 
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/api/sync_data.h"
6
7#include <ostream>
8
9#include "base/json/json_writer.h"
10#include "base/memory/scoped_ptr.h"
11#include "base/string_number_conversions.h"
12#include "base/values.h"
13#include "sync/internal_api/public/base/model_type.h"
14#include "sync/internal_api/public/base_node.h"
15#include "sync/protocol/proto_value_conversions.h"
16#include "sync/protocol/sync.pb.h"
17
18namespace syncer {
19
20void SyncData::ImmutableSyncEntityTraits::InitializeWrapper(
21    Wrapper* wrapper) {
22  *wrapper = new sync_pb::SyncEntity();
23}
24
25void SyncData::ImmutableSyncEntityTraits::DestroyWrapper(
26    Wrapper* wrapper) {
27  delete *wrapper;
28}
29
30const sync_pb::SyncEntity& SyncData::ImmutableSyncEntityTraits::Unwrap(
31    const Wrapper& wrapper) {
32  return *wrapper;
33}
34
35sync_pb::SyncEntity* SyncData::ImmutableSyncEntityTraits::UnwrapMutable(
36    Wrapper* wrapper) {
37  return *wrapper;
38}
39
40void SyncData::ImmutableSyncEntityTraits::Swap(sync_pb::SyncEntity* t1,
41                                               sync_pb::SyncEntity* t2) {
42  t1->Swap(t2);
43}
44
45SyncData::SyncData()
46    : is_valid_(false),
47      id_(kInvalidId) {}
48
49SyncData::SyncData(int64 id, sync_pb::SyncEntity* entity)
50    : is_valid_(true),
51      id_(id),
52      immutable_entity_(entity) {}
53
54SyncData::~SyncData() {}
55
56// Static.
57SyncData SyncData::CreateLocalDelete(
58    const std::string& sync_tag,
59    ModelType datatype) {
60  sync_pb::EntitySpecifics specifics;
61  AddDefaultFieldValue(datatype, &specifics);
62  return CreateLocalData(sync_tag, "", specifics);
63}
64
65// Static.
66SyncData SyncData::CreateLocalData(
67    const std::string& sync_tag,
68    const std::string& non_unique_title,
69    const sync_pb::EntitySpecifics& specifics) {
70  sync_pb::SyncEntity entity;
71  entity.set_client_defined_unique_tag(sync_tag);
72  entity.set_non_unique_name(non_unique_title);
73  entity.mutable_specifics()->CopyFrom(specifics);
74  return SyncData(kInvalidId, &entity);
75}
76
77// Static.
78SyncData SyncData::CreateRemoteData(
79    int64 id, const sync_pb::EntitySpecifics& specifics) {
80  DCHECK_NE(id, kInvalidId);
81  sync_pb::SyncEntity entity;
82  entity.mutable_specifics()->CopyFrom(specifics);
83  return SyncData(id, &entity);
84}
85
86bool SyncData::IsValid() const {
87  return is_valid_;
88}
89
90const sync_pb::EntitySpecifics& SyncData::GetSpecifics() const {
91  return immutable_entity_.Get().specifics();
92}
93
94ModelType SyncData::GetDataType() const {
95  return GetModelTypeFromSpecifics(GetSpecifics());
96}
97
98const std::string& SyncData::GetTag() const {
99  DCHECK(IsLocal());
100  return immutable_entity_.Get().client_defined_unique_tag();
101}
102
103const std::string& SyncData::GetTitle() const {
104  // TODO(zea): set this for data coming from the syncer too.
105  DCHECK(immutable_entity_.Get().has_non_unique_name());
106  return immutable_entity_.Get().non_unique_name();
107}
108
109int64 SyncData::GetRemoteId() const {
110  DCHECK(!IsLocal());
111  return id_;
112}
113
114bool SyncData::IsLocal() const {
115  return id_ == kInvalidId;
116}
117
118std::string SyncData::ToString() const {
119  if (!IsValid())
120    return "<Invalid SyncData>";
121
122  std::string type = ModelTypeToString(GetDataType());
123  std::string specifics;
124  scoped_ptr<DictionaryValue> value(EntitySpecificsToValue(GetSpecifics()));
125  base::JSONWriter::WriteWithOptions(value.get(),
126                                     base::JSONWriter::OPTIONS_PRETTY_PRINT,
127                                     &specifics);
128
129  if (IsLocal()) {
130    return "{ isLocal: true, type: " + type + ", tag: " + GetTag() +
131        ", title: " + GetTitle() + ", specifics: " + specifics + "}";
132  }
133
134  std::string id = base::Int64ToString(GetRemoteId());
135  return "{ isLocal: false, type: " + type + ", specifics: " + specifics +
136      ", id: " + id + "}";
137}
138
139void PrintTo(const SyncData& sync_data, std::ostream* os) {
140  *os << sync_data.ToString();
141}
142
143}  // namespace syncer
144