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| 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/syncable/syncable_id.h" | |
| 6 | |
| 7 #include <iosfwd> | |
| 8 | |
| 9 #include "base/logging.h" | |
| 10 #include "base/values.h" | |
| 11 | |
| 12 using std::ostream; | |
| 13 using std::string; | |
| 14 | |
| 15 namespace syncer { | |
| 16 namespace syncable { | |
| 17 | |
| 18 ostream& operator<<(ostream& out, const Id& id) { | |
| 19 out << id.s_; | |
| 20 return out; | |
| 21 } | |
| 22 | |
| 23 base::StringValue* Id::ToValue() const { | |
| 24 return new base::StringValue(s_); | |
| 25 } | |
| 26 | |
| 27 string Id::GetServerId() const { | |
| 28 // Currently root is the string "0". We need to decide on a true value. | |
| 29 // "" would be convenient here, as the IsRoot call would not be needed. | |
| 30 DCHECK(!IsNull()); | |
| 31 if (IsRoot()) | |
| 32 return "0"; | |
| 33 return s_.substr(1); | |
| 34 } | |
| 35 | |
| 36 Id Id::CreateFromServerId(const string& server_id) { | |
| 37 Id id; | |
| 38 if (!server_id.empty()) { | |
| 39 if (server_id == "0") | |
| 40 id.s_ = "r"; | |
| 41 else | |
| 42 id.s_ = string("s") + server_id; | |
| 43 } | |
| 44 return id; | |
| 45 } | |
| 46 | |
| 47 Id Id::CreateFromClientString(const string& local_id) { | |
| 48 Id id; | |
| 49 if (!local_id.empty()) { | |
| 50 if (local_id == "0") | |
| 51 id.s_ = "r"; | |
| 52 else | |
| 53 id.s_ = string("c") + local_id; | |
| 54 } | |
| 55 return id; | |
| 56 } | |
| 57 | |
| 58 Id Id::GetRoot() { | |
| 59 Id id; | |
| 60 id.s_ = "r"; | |
| 61 return id; | |
| 62 } | |
| 63 | |
| 64 Id Id::GetLexicographicSuccessor() const { | |
| 65 // The successor of a string is given by appending the least | |
| 66 // character in the alphabet. | |
| 67 Id id = *this; | |
| 68 id.s_.push_back(0); | |
| 69 return id; | |
| 70 } | |
| 71 | |
| 72 // static | |
| 73 Id Id::GetLeastIdForLexicographicComparison() { | |
| 74 Id id; | |
| 75 id.s_.clear(); | |
| 76 return id; | |
| 77 } | |
| 78 | |
| 79 } // namespace syncable | |
| 80 } // namespace syncer | |
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Chromium Code Reviews
Issue 2130453004:
[Sync] Move //sync to //components/sync. (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master