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// 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/gdata/gdata_operation_registry.h"
#include <sstream>
#include "content/public/browser/browser_thread.h"
using content::BrowserThread;
namespace gdata {
// static
std::string GDataOperationRegistry::OperationTypeToString(OperationType type) {
switch (type) {
case OPERATION_UPLOAD: return "upload";
case OPERATION_DOWNLOAD: return "download";
case OPERATION_OTHER: return "other";
}
NOTREACHED();
return "unknown_transfer_state";
}
// static
std::string GDataOperationRegistry::OperationTransferStateToString(
OperationTransferState state) {
switch (state) {
case OPERATION_NOT_STARTED: return "not_started";
case OPERATION_STARTED: return "started";
case OPERATION_IN_PROGRESS: return "in_progress";
case OPERATION_COMPLETED: return "completed";
case OPERATION_FAILED: return "failed";
}
NOTREACHED();
return "unknown_transfer_state";
}
GDataOperationRegistry::ProgressStatus::ProgressStatus(OperationType type,
const FilePath& path)
: operation_id(-1),
operation_type(type),
file_path(path),
transfer_state(OPERATION_NOT_STARTED),
progress_current(0),
progress_total(-1) {
}
std::string GDataOperationRegistry::ProgressStatus::ToString() const {
std::stringstream stream;
stream << "id=" << operation_id
<< "type="
<< GDataOperationRegistry::OperationTypeToString(operation_type)
<< "path=" << file_path.AsUTF8Unsafe()
<< "state=" << OperationTransferStateToString(transfer_state)
<< ", progress=" << progress_current
<< "/ " << progress_total;
return stream.str();
}
GDataOperationRegistry::Operation::Operation(GDataOperationRegistry* registry)
: registry_(registry),
progress_status_(GDataOperationRegistry::OPERATION_OTHER, FilePath()) {
}
GDataOperationRegistry::Operation::Operation(GDataOperationRegistry* registry,
OperationType type,
const FilePath& path)
: registry_(registry),
progress_status_(type, path) {
}
GDataOperationRegistry::Operation::~Operation() {
DCHECK(progress_status_.transfer_state == OPERATION_COMPLETED
|| progress_status_.transfer_state == OPERATION_FAILED);
}
void GDataOperationRegistry::Operation::Cancel() {
DoCancel();
NotifyFinish(OPERATION_FAILED);
}
void GDataOperationRegistry::Operation::NotifyStart() {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
progress_status_.transfer_state = OPERATION_STARTED;
progress_status_.start_time = base::Time::Now();
registry_->OnOperationStart(this, &progress_status_.operation_id);
}
void GDataOperationRegistry::Operation::NotifyProgress(
int64 current, int64 total) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
DCHECK(progress_status_.transfer_state >= OPERATION_STARTED);
progress_status_.transfer_state = OPERATION_IN_PROGRESS;
progress_status_.progress_current = current;
progress_status_.progress_total = total;
registry_->OnOperationProgress(progress_status().operation_id);
}
void GDataOperationRegistry::Operation::NotifyFinish(
OperationTransferState status) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
DCHECK(progress_status_.transfer_state >= OPERATION_STARTED);
DCHECK(status == OPERATION_COMPLETED || status == OPERATION_FAILED);
progress_status_.transfer_state = status;
registry_->OnOperationFinish(progress_status().operation_id);
}
GDataOperationRegistry::GDataOperationRegistry() {
in_flight_operations_.set_check_on_null_data(true);
}
GDataOperationRegistry::~GDataOperationRegistry() {
DCHECK(in_flight_operations_.IsEmpty());
}
void GDataOperationRegistry::AddObserver(Observer* observer) {
observer_list_.AddObserver(observer);
}
void GDataOperationRegistry::RemoveObserver(Observer* observer) {
observer_list_.RemoveObserver(observer);
}
void GDataOperationRegistry::CancelAll() {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
for (OperationIDMap::iterator iter(&in_flight_operations_);
!iter.IsAtEnd();
iter.Advance()) {
Operation* operation = iter.GetCurrentValue();
operation->Cancel();
// Cancel() may immediately trigger OnOperationFinish and remove the
// operation from the map, but IDMap is designed to be safe on such remove
// while iteration.
}
}
bool GDataOperationRegistry::CancelForFilePath(const FilePath& file_path) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
for (OperationIDMap::iterator iter(&in_flight_operations_);
!iter.IsAtEnd();
iter.Advance()) {
Operation* operation = iter.GetCurrentValue();
if (operation->progress_status().file_path == file_path) {
operation->Cancel();
return true;
}
}
return false;
}
void GDataOperationRegistry::OnOperationStart(
GDataOperationRegistry::Operation* operation,
OperationID* id) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
*id = in_flight_operations_.Add(operation);
DVLOG(1) << "GDataOperation[" << *id << "] started.";
if (IsFileTransferOperation(operation)) {
FOR_EACH_OBSERVER(Observer, observer_list_,
OnProgressUpdate(GetProgressStatusList()));
}
}
void GDataOperationRegistry::OnOperationProgress(OperationID id) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
Operation* operation = in_flight_operations_.Lookup(id);
DCHECK(operation);
DVLOG(1) << "GDataOperation[" << id << "] " <<
operation->progress_status().ToString();
if (IsFileTransferOperation(operation)) {
FOR_EACH_OBSERVER(Observer, observer_list_,
OnProgressUpdate(GetProgressStatusList()));
}
}
void GDataOperationRegistry::OnOperationFinish(OperationID id) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
Operation* operation = in_flight_operations_.Lookup(id);
DCHECK(operation);
DVLOG(1) << "GDataOperation[" << id << "] finished.";
if (IsFileTransferOperation(operation)) {
FOR_EACH_OBSERVER(Observer, observer_list_,
OnProgressUpdate(GetProgressStatusList()));
}
in_flight_operations_.Remove(id);
}
bool GDataOperationRegistry::IsFileTransferOperation(
const Operation* operation) const {
OperationType type = operation->progress_status().operation_type;
return type == OPERATION_UPLOAD || type == OPERATION_DOWNLOAD;
}
std::vector<GDataOperationRegistry::ProgressStatus>
GDataOperationRegistry::GetProgressStatusList() {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
std::vector<ProgressStatus> status_list;
for (OperationIDMap::const_iterator iter(&in_flight_operations_);
!iter.IsAtEnd();
iter.Advance()) {
const Operation* operation = iter.GetCurrentValue();
if (IsFileTransferOperation(operation))
status_list.push_back(operation->progress_status());
}
return status_list;
}
} // namespace gdata
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