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// 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 "components/upload_list/upload_list.h"
#include <algorithm>
#include <iterator>
#include "base/bind.h"
#include "base/files/file_util.h"
#include "base/location.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/string_split.h"
#include "base/strings/string_util.h"
#include "base/thread_task_runner_handle.h"
#include "base/threading/sequenced_worker_pool.h"
UploadList::UploadInfo::UploadInfo(const std::string& id,
const base::Time& t,
const std::string& local_id)
: id(id), time(t), local_id(local_id) {}
UploadList::UploadInfo::UploadInfo(const std::string& id, const base::Time& t)
: id(id), time(t) {}
UploadList::UploadInfo::~UploadInfo() {}
UploadList::UploadList(
Delegate* delegate,
const base::FilePath& upload_log_path,
const scoped_refptr<base::SequencedWorkerPool>& worker_pool)
: delegate_(delegate),
upload_log_path_(upload_log_path),
worker_pool_(worker_pool) {}
UploadList::~UploadList() {}
void UploadList::LoadUploadListAsynchronously() {
DCHECK(thread_checker_.CalledOnValidThread());
worker_pool_->PostTask(
FROM_HERE,
base::Bind(&UploadList::LoadUploadListAndInformDelegateOfCompletion,
this, base::ThreadTaskRunnerHandle::Get()));
}
void UploadList::ClearDelegate() {
DCHECK(thread_checker_.CalledOnValidThread());
delegate_ = NULL;
}
void UploadList::LoadUploadListAndInformDelegateOfCompletion(
const scoped_refptr<base::SequencedTaskRunner>& task_runner) {
LoadUploadList();
task_runner->PostTask(
FROM_HERE,
base::Bind(&UploadList::InformDelegateOfCompletion, this));
}
void UploadList::LoadUploadList() {
if (base::PathExists(upload_log_path_)) {
std::string contents;
base::ReadFileToString(upload_log_path_, &contents);
std::vector<std::string> log_entries = base::SplitString(
contents, base::kWhitespaceASCII, base::KEEP_WHITESPACE,
base::SPLIT_WANT_NONEMPTY);
ClearUploads();
ParseLogEntries(log_entries);
}
}
void UploadList::AppendUploadInfo(const UploadInfo& info) {
uploads_.push_back(info);
}
void UploadList::ClearUploads() {
uploads_.clear();
}
void UploadList::ParseLogEntries(
const std::vector<std::string>& log_entries) {
std::vector<std::string>::const_reverse_iterator i;
for (i = log_entries.rbegin(); i != log_entries.rend(); ++i) {
std::vector<std::string> components = base::SplitString(
*i, ",", base::TRIM_WHITESPACE, base::SPLIT_WANT_ALL);
// Skip any blank (or corrupted) lines.
if (components.size() != 2 && components.size() != 3)
continue;
base::Time upload_time;
double seconds_since_epoch;
if (!components[0].empty()) {
if (!base::StringToDouble(components[0], &seconds_since_epoch))
continue;
upload_time = base::Time::FromDoubleT(seconds_since_epoch);
}
UploadInfo info(components[1], upload_time);
if (components.size() == 3)
info.local_id = components[2];
uploads_.push_back(info);
}
}
void UploadList::InformDelegateOfCompletion() {
DCHECK(thread_checker_.CalledOnValidThread());
if (delegate_)
delegate_->OnUploadListAvailable();
}
void UploadList::GetUploads(unsigned int max_count,
std::vector<UploadInfo>* uploads) {
DCHECK(thread_checker_.CalledOnValidThread());
std::copy(uploads_.begin(),
uploads_.begin() + std::min<size_t>(uploads_.size(), max_count),
std::back_inserter(*uploads));
}
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