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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef CHROME_BROWSER_CHROMEOS_DRIVE_STALE_CACHE_FILES_REMOVER_H_ | 5 #ifndef CHROME_BROWSER_CHROMEOS_DRIVE_STALE_CACHE_FILES_REMOVER_H_ |
| 6 #define CHROME_BROWSER_CHROMEOS_DRIVE_STALE_CACHE_FILES_REMOVER_H_ | 6 #define CHROME_BROWSER_CHROMEOS_DRIVE_STALE_CACHE_FILES_REMOVER_H_ |
| 7 | 7 |
| 8 #include <string> | 8 #include <string> |
| 9 #include <vector> | 9 #include <vector> |
| 10 | 10 |
| 11 #include "base/memory/scoped_ptr.h" | 11 #include "base/memory/scoped_ptr.h" |
| 12 #include "base/memory/weak_ptr.h" | 12 #include "base/memory/weak_ptr.h" |
| 13 #include "chrome/browser/chromeos/drive/drive.pb.h" | 13 #include "chrome/browser/chromeos/drive/drive.pb.h" |
| 14 #include "chrome/browser/chromeos/drive/drive_file_system_observer.h" | 14 #include "chrome/browser/chromeos/drive/drive_file_system_observer.h" |
| 15 #include "chrome/browser/google_apis/gdata_errorcode.h" | 15 #include "chrome/browser/google_apis/gdata_errorcode.h" |
| 16 | 16 |
| 17 namespace gdata{ | 17 namespace drive{ |
| 18 | 18 |
| 19 class DriveCache; | 19 class DriveCache; |
| 20 class DriveCacheEntry; | 20 class DriveCacheEntry; |
| 21 class DriveFileSystemInterface; | 21 class DriveFileSystemInterface; |
| 22 | 22 |
| 23 // This class removes stale cache files, which are present locally, but no | 23 // This class removes stale cache files, which are present locally, but no |
| 24 // longer present on the server. This can happen if files are removed from the | 24 // longer present on the server. This can happen if files are removed from the |
| 25 // server from other devices, or from the web interface. | 25 // server from other devices, or from the web interface. |
| 26 class StaleCacheFilesRemover : public DriveFileSystemObserver { | 26 class StaleCacheFilesRemover : public DriveFileSystemObserver { |
| 27 public: | 27 public: |
| 28 StaleCacheFilesRemover(DriveFileSystemInterface* file_system, | 28 StaleCacheFilesRemover(DriveFileSystemInterface* file_system, |
| 29 DriveCache* cache); | 29 DriveCache* cache); |
| 30 virtual ~StaleCacheFilesRemover(); | 30 virtual ~StaleCacheFilesRemover(); |
| 31 | 31 |
| 32 private: | 32 private: |
| 33 // Removes stale cache files. | 33 // Removes stale cache files. |
| 34 // Gets the list of all the resource id and calls OnGetResourceIdsOfAllFiles() | 34 // Gets the list of all the resource id and calls OnGetResourceIdsOfAllFiles() |
| 35 // with the list. | 35 // with the list. |
| 36 virtual void OnInitialLoadFinished(DriveFileError error) OVERRIDE; | 36 virtual void OnInitialLoadFinished(DriveFileError error) OVERRIDE; |
| 37 | 37 |
| 38 // Gets the cache entry of each resource id. And passes the cache entry to | 38 // Gets the cache entry of each resource id. And passes the cache entry to |
| 39 // GetEntryInfoAndRemoveCacheIfNecessary(). | 39 // GetEntryInfoAndRemoveCacheIfNecessary(). |
| 40 void OnGetResourceIdsOfAllFiles(const std::vector<std::string>& resource_ids); | 40 void OnGetResourceIdsOfAllFiles(const std::vector<std::string>& resource_ids); |
| 41 | 41 |
| 42 // Gets the file entry and calls RemoveCacheIfNecessary() with the file entry. | 42 // Gets the file entry and calls RemoveCacheIfNecessary() with the file entry. |
| 43 // This is called from StaleCacheFilesRemover::OnGetResourceIdsOfAllFiles(). | 43 // This is called from StaleCacheFilesRemover::OnGetResourceIdsOfAllFiles(). |
| 44 void GetEntryInfoAndRemoveCacheIfNecessary( | 44 void GetEntryInfoAndRemoveCacheIfNecessary( |
| 45 const std::string& resource_id, | 45 const std::string& resource_id, |
| 46 bool success, | 46 bool success, |
| 47 const gdata::DriveCacheEntry& cache_entry); | 47 const DriveCacheEntry& cache_entry); |
| 48 | 48 |
| 49 // Check the cache file and removes if it is unavailable or invalid (eg. md5 | 49 // Check the cache file and removes if it is unavailable or invalid (eg. md5 |
| 50 // mismatch). This is called from GetCacheEntryAndRemoveCacheIfNecessary(); | 50 // mismatch). This is called from GetCacheEntryAndRemoveCacheIfNecessary(); |
| 51 void RemoveCacheIfNecessary( | 51 void RemoveCacheIfNecessary( |
| 52 const std::string& resource_id, | 52 const std::string& resource_id, |
| 53 const std::string& cache_md5, | 53 const std::string& cache_md5, |
| 54 DriveFileError error, | 54 DriveFileError error, |
| 55 const FilePath& drive_file_path, | 55 const FilePath& drive_file_path, |
| 56 scoped_ptr<gdata::DriveEntryProto> entry_proto); | 56 scoped_ptr<DriveEntryProto> entry_proto); |
| 57 | 57 |
| 58 DriveCache* cache_; // Not owned. | 58 DriveCache* cache_; // Not owned. |
| 59 DriveFileSystemInterface* file_system_; // Not owned. | 59 DriveFileSystemInterface* file_system_; // Not owned. |
| 60 | 60 |
| 61 // Note: This should remain the last member so it'll be destroyed and | 61 // Note: This should remain the last member so it'll be destroyed and |
| 62 // invalidate its weak pointers before any other members are destroyed. | 62 // invalidate its weak pointers before any other members are destroyed. |
| 63 base::WeakPtrFactory<StaleCacheFilesRemover> weak_ptr_factory_; | 63 base::WeakPtrFactory<StaleCacheFilesRemover> weak_ptr_factory_; |
| 64 DISALLOW_COPY_AND_ASSIGN(StaleCacheFilesRemover); | 64 DISALLOW_COPY_AND_ASSIGN(StaleCacheFilesRemover); |
| 65 }; | 65 }; |
| 66 | 66 |
| 67 } // namespace gdata | 67 } // namespace drive |
| 68 | 68 |
| 69 #endif // CHROME_BROWSER_CHROMEOS_DRIVE_STALE_CACHE_FILES_REMOVER_H_ | 69 #endif // CHROME_BROWSER_CHROMEOS_DRIVE_STALE_CACHE_FILES_REMOVER_H_ |
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