| // Copyright 2013 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 "chrome/browser/extensions/api/sessions/session_id.h" |
| |
| #include <stddef.h> |
| |
| #include "base/memory/ptr_util.h" |
| #include "base/strings/string_number_conversions.h" |
| |
| namespace extensions { |
| |
| const char kIdSeparator = '.'; |
| |
| // static |
| std::unique_ptr<SessionId> SessionId::Parse(const std::string& session_id) { |
| std::string session_tag; |
| |
| // Populate session_tag if the |session_id| represents a foreign SessionId. |
| std::size_t separator = session_id.find(kIdSeparator); |
| if (separator != std::string::npos) { |
| session_tag = session_id.substr(0, separator); |
| } |
| |
| // session_tag will be the empty string for local sessions that have only |
| // a unique integer as the identifier. |
| int id; |
| if (!base::StringToInt( |
| session_tag.empty() ? session_id : session_id.substr(separator + 1), |
| &id)) { |
| return std::unique_ptr<SessionId>(); |
| } |
| return base::WrapUnique(new SessionId(session_tag, id)); |
| } |
| |
| SessionId::SessionId(const std::string& session_tag, int id) |
| : session_tag_(session_tag), id_(id) { |
| } |
| |
| bool SessionId::IsForeign() const { |
| return !session_tag_.empty(); |
| } |
| |
| std::string SessionId::ToString() const { |
| return IsForeign() ? |
| (session_tag_ + kIdSeparator + base::IntToString(id_)) |
| : base::IntToString(id_); |
| } |
| |
| } // namespace extensions |