root/chrome/browser/sync_file_system/drive_backend/drive_backend_util.h

INCLUDED FROM

// 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.

#ifndef CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_DRIVE_BACKEND_UTIL_H_
#define CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_DRIVE_BACKEND_UTIL_H_

#include <string>

#include "base/memory/scoped_ptr.h"
#include "base/memory/scoped_vector.h"
#include "chrome/browser/sync_file_system/drive_backend/metadata_database.pb.h"
#include "chrome/browser/sync_file_system/sync_status_code.h"
#include "google_apis/drive/gdata_errorcode.h"
#include "webkit/common/blob/scoped_file.h"

namespace google_apis {
class ChangeResource;
class FileResource;
class ResourceEntry;
}

namespace leveldb {
class WriteBatch;
}

namespace sync_file_system {
namespace drive_backend {

void PutServiceMetadataToBatch(const ServiceMetadata& service_metadata,
                               leveldb::WriteBatch* batch);
void PutFileMetadataToBatch(const FileMetadata& file,
                            leveldb::WriteBatch* batch);
void PutFileTrackerToBatch(const FileTracker& tracker,
                           leveldb::WriteBatch* batch);

void PutFileMetadataDeletionToBatch(const std::string& file_id,
                                    leveldb::WriteBatch* batch);
void PutFileTrackerDeletionToBatch(int64 tracker_id,
                                   leveldb::WriteBatch* batch);

void PopulateFileDetailsByFileResource(
    const google_apis::FileResource& file_resource,
    FileDetails* details);
scoped_ptr<FileMetadata> CreateFileMetadataFromFileResource(
    int64 change_id,
    const google_apis::FileResource& resource);
scoped_ptr<FileMetadata> CreateFileMetadataFromChangeResource(
    const google_apis::ChangeResource& change);
scoped_ptr<FileMetadata> CreateDeletedFileMetadata(
    int64 change_id,
    const std::string& file_id);

// Creates a temporary file in |dir_path|.  This must be called on an
// IO-allowed task runner, and the runner must be given as |file_task_runner|.
webkit_blob::ScopedFile CreateTemporaryFile(
    base::TaskRunner* file_task_runner);

std::string FileKindToString(FileKind file_kind);

bool HasFileAsParent(const FileDetails& details, const std::string& file_id);

std::string GetMimeTypeFromTitle(const base::FilePath& title);

scoped_ptr<google_apis::ResourceEntry> GetOldestCreatedFolderResource(
    ScopedVector<google_apis::ResourceEntry> list);

SyncStatusCode GDataErrorCodeToSyncStatusCode(
    google_apis::GDataErrorCode error);

scoped_ptr<FileTracker> CloneFileTracker(const FileTracker* obj);

template <typename Src, typename Dest>
void AppendContents(const Src& src, Dest* dest) {
  dest->insert(dest->end(), src.begin(), src.end());
}

template <typename Container>
const typename Container::mapped_type& LookUpMap(
    const Container& container,
    const typename Container::key_type& key,
    const typename Container::mapped_type& default_value) {
  typename Container::const_iterator found = container.find(key);
  if (found == container.end())
    return default_value;
  return found->second;
}

}  // namespace drive_backend
}  // namespace sync_file_system

#endif  // CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_DRIVE_BACKEND_UTIL_H_