Refactoring the SysInfoProvider.

chrome/browser/chromeos/syslogs/syslogs_fetcher.cc

+// Copyright (c) 2012 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/chromeos/syslogs/syslogs_fetcher.h"
+
+#include "base/bind.h"
+#include "base/bind_helpers.h"
+#include "chrome/browser/chromeos/syslogs/commandline_fetcher.h"
+#include "chrome/browser/chromeos/syslogs/debugd_log_fetcher.h"
+#include "chrome/browser/chromeos/syslogs/memorydetails_fetcher.h"
+#include "chrome/browser/chromeos/syslogs/lsbrelease_fetcher.h"
+#include "content/public/browser/browser_thread.h"
+
+using content::BrowserThread;
+
+namespace chromeos {
+
+AggregatedSystemLogsFetcher::AggregatedSystemLogsFetcher()
+    : response_(new SystemLogsResponse), num_responses_(0),
+      ALLOW_THIS_IN_INITIALIZER_LIST(weak_ptr_factory_(this)) {
+
+  // Debug Daemon data source.
+  data_sources_.push_back(new DebugDaemonLogFetcher());
+
+  // Chrome data sources.
+  data_sources_.push_back(new CommandLineFetcher());
+  data_sources_.push_back(new LSBReleaseFetcher());
+  data_sources_.push_back(new MemoryDetailsFetcher());
+  num_responses_ = data_sources_.size();
+}
+
+void AggregatedSystemLogsFetcher::Fetch(const SysLogsFetcherCallback& request) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+
+  request_ = request;
+  SysLogsDataSources::iterator it;
+  for (it = data_sources_.begin(); it != data_sources_.end(); ++it) {
+    (*it)->Fetch(base::Bind(&AggregatedSystemLogsFetcher::AddData,
+                            weak_ptr_factory_.GetWeakPtr()));
+  }
+}
+
+void AggregatedSystemLogsFetcher::AddData(SystemLogsResponse* response) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+
+  for (SystemLogsResponse::iterator it = response->begin();
+       it != response->end();
+       ++it) {
+    (*response_)[it->first] = it->second;
+  }
+  delete response;
+
+  if (--num_responses_)
+    return;
+
+
+  for (SysLogsDataSources::iterator it = data_sources_.begin();
+       it != data_sources_.end();
+       ++it) {
+    delete *it;
+  }
+  request_.Run(response_);
+  BrowserThread::DeleteSoon(BrowserThread::UI, FROM_HERE, this);
+}
+
+}  // namespace chromeos
+