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// Copyright 2013 The Chromium Authors
// 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 nullptr;
}
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::NumberToString(id_))
: base::NumberToString(id_);
}
} // namespace extensions
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