1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
|
// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/sync/engine/loopback_server/persistent_unique_client_entity.h"
#include "base/logging.h"
#include "base/rand_util.h"
#include "base/strings/string_number_conversions.h"
#include "components/sync/base/client_tag_hash.h"
#include "components/sync/engine/loopback_server/persistent_permanent_entity.h"
#include "components/sync/protocol/loopback_server.pb.h"
#include "components/sync/protocol/sync_entity.pb.h"
namespace syncer {
PersistentUniqueClientEntity::PersistentUniqueClientEntity(
const std::string& id,
DataType data_type,
int64_t version,
const std::string& name,
const std::string& client_tag_hash,
const sync_pb::EntitySpecifics& specifics,
int64_t creation_time,
int64_t last_modified_time,
const sync_pb::SyncEntity::CollaborationMetadata& collaboration_metadata)
: LoopbackServerEntity(id, data_type, version, name),
client_tag_hash_(client_tag_hash),
creation_time_(creation_time),
last_modified_time_(last_modified_time),
collaboration_metadata_(collaboration_metadata) {
SetSpecifics(specifics);
}
PersistentUniqueClientEntity::~PersistentUniqueClientEntity() = default;
// static
std::unique_ptr<LoopbackServerEntity>
PersistentUniqueClientEntity::CreateFromEntity(
const sync_pb::SyncEntity& client_entity) {
DataType data_type = GetDataTypeFromSpecifics(client_entity.specifics());
if (!client_entity.has_client_tag_hash()) {
DLOG(WARNING) << "A UniqueClientEntity should have a client-defined unique "
"tag.";
return nullptr;
}
// Without data type specific logic for each CommitOnly type, we cannot infer
// a reasonable tag from the specifics. We need uniqueness for how the server
// holds onto all objects, so simply make a new tag from a random number.
std::string effective_tag = client_entity.has_client_tag_hash()
? client_entity.client_tag_hash()
: base::NumberToString(base::RandUint64());
std::string id = LoopbackServerEntity::CreateId(data_type, effective_tag);
return std::make_unique<PersistentUniqueClientEntity>(
id, data_type, client_entity.version(), client_entity.name(),
client_entity.client_tag_hash(), client_entity.specifics(),
client_entity.ctime(), client_entity.mtime(),
client_entity.collaboration());
}
// static
std::unique_ptr<LoopbackServerEntity>
PersistentUniqueClientEntity::CreateFromSpecificsForTesting(
const std::string& non_unique_name,
const std::string& client_tag,
const sync_pb::EntitySpecifics& entity_specifics,
int64_t creation_time,
int64_t last_modified_time) {
DataType data_type = GetDataTypeFromSpecifics(entity_specifics);
std::string client_tag_hash =
ClientTagHash::FromUnhashed(data_type, client_tag).value();
std::string id = LoopbackServerEntity::CreateId(data_type, client_tag_hash);
return std::make_unique<PersistentUniqueClientEntity>(
id, data_type, 0, non_unique_name, client_tag_hash, entity_specifics,
creation_time, last_modified_time,
/*collaboration_metadata=*/sync_pb::SyncEntity::CollaborationMetadata());
}
// static
std::unique_ptr<LoopbackServerEntity>
PersistentUniqueClientEntity::CreateFromSharedSpecificsForTesting(
const std::string& non_unique_name,
const std::string& client_tag,
const sync_pb::EntitySpecifics& entity_specifics,
int64_t creation_time,
int64_t last_modified_time,
const sync_pb::SyncEntity::CollaborationMetadata& collaboration_metadata) {
DataType data_type = GetDataTypeFromSpecifics(entity_specifics);
std::string client_tag_hash =
ClientTagHash::FromUnhashed(data_type, client_tag).value();
std::string id = LoopbackServerEntity::CreateId(data_type, client_tag_hash);
return std::make_unique<PersistentUniqueClientEntity>(
id, data_type, 0, non_unique_name, client_tag_hash, entity_specifics,
creation_time, last_modified_time, collaboration_metadata);
}
bool PersistentUniqueClientEntity::RequiresParentId() const {
return false;
}
std::string PersistentUniqueClientEntity::GetParentId() const {
// The parent ID for this type of entity should always be its DataType's
// root node.
return LoopbackServerEntity::GetTopLevelId(GetDataType());
}
sync_pb::LoopbackServerEntity_Type
PersistentUniqueClientEntity::GetLoopbackServerEntityType() const {
return sync_pb::LoopbackServerEntity_Type_UNIQUE;
}
void PersistentUniqueClientEntity::SerializeAsProto(
sync_pb::SyncEntity* proto) const {
LoopbackServerEntity::SerializeBaseProtoFields(proto);
proto->set_client_tag_hash(client_tag_hash_);
proto->set_ctime(creation_time_);
proto->set_mtime(last_modified_time_);
if (collaboration_metadata_.has_collaboration_id()) {
*proto->mutable_collaboration() = collaboration_metadata_;
}
}
} // namespace syncer
|
