| // 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/feedback/system_logs/system_logs_fetcher_base.h" |
| |
| #include <utility> |
| |
| #include "base/bind.h" |
| #include "base/bind_helpers.h" |
| #include "content/public/browser/browser_thread.h" |
| |
| using content::BrowserThread; |
| |
| namespace system_logs { |
| |
| SystemLogsSource::SystemLogsSource(const std::string& source_name) |
| : source_name_(source_name) { |
| } |
| |
| SystemLogsSource::~SystemLogsSource() { |
| } |
| |
| SystemLogsFetcherBase::SystemLogsFetcherBase() |
| : response_(new SystemLogsResponse), |
| num_pending_requests_(0) { |
| } |
| |
| SystemLogsFetcherBase::~SystemLogsFetcherBase() {} |
| |
| void SystemLogsFetcherBase::Fetch(const SysLogsFetcherCallback& callback) { |
| DCHECK_CURRENTLY_ON(BrowserThread::UI); |
| DCHECK(callback_.is_null()); |
| DCHECK(!callback.is_null()); |
| |
| callback_ = callback; |
| for (size_t i = 0; i < data_sources_.size(); ++i) { |
| VLOG(1) << "Fetching SystemLogSource: " << data_sources_[i]->source_name(); |
| data_sources_[i]->Fetch(base::Bind(&SystemLogsFetcherBase::OnFetched, |
| AsWeakPtr(), |
| data_sources_[i]->source_name())); |
| } |
| } |
| |
| void SystemLogsFetcherBase::OnFetched(const std::string& source_name, |
| SystemLogsResponse* response) { |
| DCHECK_CURRENTLY_ON(BrowserThread::UI); |
| |
| VLOG(1) << "Received SystemLogSource: " << source_name; |
| |
| Rewrite(source_name, response); |
| AddResponse(source_name, response); |
| } |
| |
| void SystemLogsFetcherBase::Rewrite(const std::string& /* source_name */, |
| SystemLogsResponse* /* response */) { |
| // This implementation in the base class is intentionally empty. |
| } |
| |
| void SystemLogsFetcherBase::AddResponse(const std::string& source_name, |
| SystemLogsResponse* response) { |
| for (SystemLogsResponse::const_iterator it = response->begin(); |
| it != response->end(); |
| ++it) { |
| // It is an error to insert an element with a pre-existing key. |
| bool ok = response_->insert(*it).second; |
| DCHECK(ok) << "Duplicate key found: " << it->first; |
| } |
| |
| --num_pending_requests_; |
| if (num_pending_requests_ > 0) |
| return; |
| |
| callback_.Run(std::move(response_)); |
| BrowserThread::DeleteSoon(BrowserThread::UI, FROM_HERE, this); |
| } |
| |
| } // namespace system_logs |