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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.
#ifndef WEBKIT_FILEAPI_SYNCABLE_CANNED_SYNCABLE_FILE_SYSTEM_H_
#define WEBKIT_FILEAPI_SYNCABLE_CANNED_SYNCABLE_FILE_SYSTEM_H_
#include <string>
#include <vector>
#include "base/callback_forward.h"
#include "base/message_loop.h"
#include "base/observer_list_threadsafe.h"
#include "base/platform_file.h"
#include "base/scoped_temp_dir.h"
#include "webkit/fileapi/file_system_types.h"
#include "webkit/fileapi/file_system_url.h"
#include "webkit/fileapi/file_system_util.h"
#include "webkit/fileapi/syncable/local_file_sync_status.h"
#include "webkit/fileapi/syncable/sync_status_code.h"
#include "webkit/quota/quota_types.h"
namespace base {
class MessageLoopProxy;
class SingleThreadTaskRunner;
class Thread;
}
namespace net {
class URLRequestContext;
}
namespace quota {
class QuotaManager;
}
namespace fileapi {
class FileSystemContext;
class FileSystemOperation;
class LocalFileSyncContext;
// A canned syncable filesystem for testing.
// This internally creates its own QuotaManager and FileSystemContext
// (as we do so for each isolated application).
class CannedSyncableFileSystem
: public LocalFileSyncStatus::Observer {
public:
typedef base::Callback<void(base::PlatformFileError)> StatusCallback;
typedef base::Callback<void(int64)> WriteCallback;
CannedSyncableFileSystem(const GURL& origin,
const std::string& service,
base::SingleThreadTaskRunner* io_task_runner,
base::SingleThreadTaskRunner* file_task_runner);
virtual ~CannedSyncableFileSystem();
// SetUp must be called before using this instance.
void SetUp();
// TearDown must be called before destructing this instance.
void TearDown();
// Creates a FileSystemURL for the given (utf8) path string.
FileSystemURL URL(const std::string& path) const;
// Initialize this with given |sync_context| if it hasn't
// been initialized.
SyncStatusCode MaybeInitializeFileSystemContext(
LocalFileSyncContext* sync_context);
// Opens a new syncable file system.
base::PlatformFileError OpenFileSystem();
// Register sync status observers. Unlike original
// LocalFileSyncStatus::Observer implementation the observer methods
// are called on the same thread where AddSyncStatusObserver were called.
void AddSyncStatusObserver(LocalFileSyncStatus::Observer* observer);
void RemoveSyncStatusObserver(LocalFileSyncStatus::Observer* observer);
// Accessors.
FileSystemContext* file_system_context() {
return file_system_context_.get();
}
quota::QuotaManager* quota_manager() { return quota_manager_.get(); }
GURL origin() const { return origin_; }
FileSystemType type() const { return type_; }
quota::StorageType storage_type() const {
return FileSystemTypeToQuotaStorageType(type_);
}
// Helper routines to perform file system operations.
// OpenFileSystem() must have been called before calling any of them.
// They create an operation and run it on IO task runner, and the operation
// posts a task on file runner.
base::PlatformFileError CreateDirectory(const FileSystemURL& url);
base::PlatformFileError CreateFile(const FileSystemURL& url);
base::PlatformFileError Copy(const FileSystemURL& src_url,
const FileSystemURL& dest_url);
base::PlatformFileError Move(const FileSystemURL& src_url,
const FileSystemURL& dest_url);
base::PlatformFileError TruncateFile(const FileSystemURL& url, int64 size);
base::PlatformFileError TouchFile(const FileSystemURL& url,
const base::Time& last_access_time,
const base::Time& last_modified_time);
base::PlatformFileError Remove(const FileSystemURL& url, bool recursive);
base::PlatformFileError FileExists(const FileSystemURL& url);
base::PlatformFileError DirectoryExists(const FileSystemURL& url);
base::PlatformFileError VerifyFile(const FileSystemURL& url,
const std::string& expected_data);
// Returns the # of bytes written (>=0) or an error code (<0).
int64 Write(net::URLRequestContext* url_request_context,
const FileSystemURL& url, const GURL& blob_url);
int64 WriteString(const FileSystemURL& url, const std::string& data);
// Purges the file system local storage.
base::PlatformFileError DeleteFileSystem();
// Retrieves the quota and usage.
quota::QuotaStatusCode GetUsageAndQuota(int64* usage, int64* quota);
// ChangeTracker related methods. They run on file task runner.
void GetChangedURLsInTracker(FileSystemURLSet* urls);
void ClearChangeForURLInTracker(const FileSystemURL& url);
// Returns new FileSystemOperation.
FileSystemOperation* NewOperation();
// LocalFileSyncStatus::Observer overrides.
virtual void OnSyncEnabled(const FileSystemURL& url) OVERRIDE;
virtual void OnWriteEnabled(const FileSystemURL& url) OVERRIDE;
private:
typedef ObserverListThreadSafe<LocalFileSyncStatus::Observer> ObserverList;
// Operation methods body.
void DoCreateDirectory(const FileSystemURL& url,
const StatusCallback& callback);
void DoCreateFile(const FileSystemURL& url,
const StatusCallback& callback);
void DoCopy(const FileSystemURL& src_url,
const FileSystemURL& dest_url,
const StatusCallback& callback);
void DoMove(const FileSystemURL& src_url,
const FileSystemURL& dest_url,
const StatusCallback& callback);
void DoTruncateFile(const FileSystemURL& url,
int64 size,
const StatusCallback& callback);
void DoTouchFile(const FileSystemURL& url,
const base::Time& last_access_time,
const base::Time& last_modified_time,
const StatusCallback& callback);
void DoRemove(const FileSystemURL& url,
bool recursive,
const StatusCallback& callback);
void DoFileExists(const FileSystemURL& url,
const StatusCallback& callback);
void DoDirectoryExists(const FileSystemURL& url,
const StatusCallback& callback);
void DoVerifyFile(const FileSystemURL& url,
const std::string& expected_data,
const StatusCallback& callback);
void DoWrite(net::URLRequestContext* url_request_context,
const FileSystemURL& url,
const GURL& blob_url,
const WriteCallback& callback);
void DoWriteString(const FileSystemURL& url,
const std::string& data,
const WriteCallback& callback);
void DoGetUsageAndQuota(int64* usage,
int64* quota,
const quota::StatusCallback& callback);
// Callbacks.
void DidOpenFileSystem(base::PlatformFileError result,
const std::string& name,
const GURL& root);
void DidInitializeFileSystemContext(SyncStatusCode status);
void InitializeSyncStatusObserver();
ScopedTempDir data_dir_;
const std::string service_name_;
scoped_refptr<quota::QuotaManager> quota_manager_;
scoped_refptr<FileSystemContext> file_system_context_;
const GURL origin_;
const FileSystemType type_;
GURL root_url_;
base::PlatformFileError result_;
SyncStatusCode sync_status_;
scoped_refptr<base::SingleThreadTaskRunner> io_task_runner_;
scoped_refptr<base::SingleThreadTaskRunner> file_task_runner_;
// Boolean flags mainly for helping debug.
bool is_filesystem_set_up_;
bool is_filesystem_opened_;
scoped_refptr<ObserverList> sync_status_observers_;
DISALLOW_COPY_AND_ASSIGN(CannedSyncableFileSystem);
};
} // namespace fileapi
#endif // WEBKIT_FILEAPI_SYNCABLE_CANNED_SYNCABLE_FILE_SYSTEM_H_
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