import android.accounts.Account;
import android.content.Context;
+import android.content.Intent;
import com.owncloud.android.Log_OC;
-import com.owncloud.android.datamodel.DataStorageManager;
+import com.owncloud.android.datamodel.FileDataStorageManager;
import com.owncloud.android.datamodel.OCFile;
import com.owncloud.android.operations.RemoteOperationResult.ResultCode;
+import com.owncloud.android.syncadapter.FileSyncService;
import com.owncloud.android.utils.FileStorageUtils;
import eu.alefzero.webdav.WebdavClient;
/**
- * Remote operation performing the synchronization a the contents of a remote folder with the local database
+ * Remote operation performing the synchronization of the list of files contained
+ * in a folder identified with its remote path.
+ *
+ * Fetches the list and properties of the files contained in the given folder, including their
+ * properties, and updates the local database with them.
+ *
+ * Does NOT enter in the child folders to synchronize their contents also.
*
- * @author David A. Velasco
+ * @author David A. Velasco
*/
public class SynchronizeFolderOperation extends RemoteOperation {
private static final String TAG = SynchronizeFolderOperation.class.getSimpleName();
- /** Remote folder to synchronize */
- private String mRemotePath;
- /** Timestamp for the synchronization in progress */
+ /** Time stamp for the synchronization process in progress */
private long mCurrentSyncTime;
- /** Id of the folder to synchronize in the local database */
- private long mParentId;
+ /** Remote folder to synchronize */
+ private OCFile mLocalFolder;
/** Access to the local database */
- private DataStorageManager mStorageManager;
+ private FileDataStorageManager mStorageManager;
/** Account where the file to synchronize belongs */
private Account mAccount;
- /** Android context; necessary to send requests to the download service; maybe something to refactor */
+ /** Android context; necessary to send requests to the download service */
private Context mContext;
- /** Files and folders contained in the synchronized folder */
+ /** Files and folders contained in the synchronized folder after a successful operation */
private List<OCFile> mChildren;
+ /** Counter of conflicts found between local and remote files */
private int mConflictsFound;
+ /** Counter of failed operations in synchronization of kept-in-sync files */
private int mFailsInFavouritesFound;
+ /** Map of remote and local paths to files that where locally stored in a location out of the ownCloud folder and couldn't be copied automatically into it */
private Map<String, String> mForgottenLocalFiles;
+
+ /** 'True' means that this operation is part of a full account synchronization */
+ private boolean mSyncFullAccount;
+
+ /** 'True' means that the remote folder changed from last synchronization and should be fetched */
+ private boolean mRemoteFolderChanged;
- public SynchronizeFolderOperation( String remotePath,
+ /**
+ * Creates a new instance of {@link SynchronizeFolderOperation}.
+ *
+ * @param remoteFolderPath Remote folder to synchronize.
+ * @param currentSyncTime Time stamp for the synchronization process in progress.
+ * @param localFolderId Identifier in the local database of the folder to synchronize.
+ * @param updateFolderProperties 'True' means that the properties of the folder should be updated also, not just its content.
+ * @param syncFullAccount 'True' means that this operation is part of a full account synchronization.
+ * @param dataStorageManager Interface with the local database.
+ * @param account ownCloud account where the folder is located.
+ * @param context Application context.
+ */
+ public SynchronizeFolderOperation( OCFile folder,
long currentSyncTime,
- long parentId,
- DataStorageManager dataStorageManager,
+ boolean syncFullAccount,
+ FileDataStorageManager dataStorageManager,
Account account,
Context context ) {
- mRemotePath = remotePath;
+ mLocalFolder = folder;
mCurrentSyncTime = currentSyncTime;
- mParentId = parentId;
+ mSyncFullAccount = syncFullAccount;
mStorageManager = dataStorageManager;
mAccount = account;
mContext = context;
mForgottenLocalFiles = new HashMap<String, String>();
+ mRemoteFolderChanged = false;
}
/**
* Returns the list of files and folders contained in the synchronized folder, if called after synchronization is complete.
*
- * @return List of files and folders contained in the synchronized folder.
+ * @return List of files and folders contained in the synchronized folder.
*/
public List<OCFile> getChildren() {
return mChildren;
}
-
+ /**
+ * Performs the synchronization.
+ *
+ * {@inheritDoc}
+ */
@Override
protected RemoteOperationResult run(WebdavClient client) {
RemoteOperationResult result = null;
mConflictsFound = 0;
mForgottenLocalFiles.clear();
- // code before in FileSyncAdapter.fetchData
+ result = checkForChanges(client);
+
+ if (result.isSuccess()) {
+ if (mRemoteFolderChanged) {
+ result = fetchAndSyncRemoteFolder(client);
+ } else {
+ mChildren = mStorageManager.getFolderContent(mLocalFolder);
+ }
+ }
+
+ if (!mSyncFullAccount) {
+ sendStickyBroadcast(false, mLocalFolder.getRemotePath(), result);
+ }
+
+ return result;
+
+ }
+
+
+ private RemoteOperationResult checkForChanges(WebdavClient client) {
+ mRemoteFolderChanged = false;
+ RemoteOperationResult result = null;
+ String remotePath = null;
PropFindMethod query = null;
+
try {
- Log_OC.d(TAG, "Synchronizing " + mAccount.name + ", fetching files in " + mRemotePath);
-
+ remotePath = mLocalFolder.getRemotePath();
+ Log_OC.d(TAG, "Checking changes in " + mAccount.name + remotePath);
+
// remote request
- query = new PropFindMethod(client.getBaseUri() + WebdavUtils.encodePath(mRemotePath),
+ query = new PropFindMethod(client.getBaseUri() + WebdavUtils.encodePath(remotePath),
DavConstants.PROPFIND_ALL_PROP,
- DavConstants.DEPTH_1);
+ DavConstants.DEPTH_0);
int status = client.executeMethod(query);
-
- // check and process response - /// TODO take into account all the possible status per child-resource
- if (isMultiStatus(status)) {
- MultiStatus resp = query.getResponseBodyAsMultiStatus();
-
- // synchronize properties of the parent folder, if necessary
- if (mParentId == DataStorageManager.ROOT_PARENT_ID) {
- WebdavEntry we = new WebdavEntry(resp.getResponses()[0], client.getBaseUri().getPath());
- OCFile parent = fillOCFile(we);
- mStorageManager.saveFile(parent);
- mParentId = parent.getFileId();
- }
-
- // read contents in folder
- List<OCFile> updatedFiles = new Vector<OCFile>(resp.getResponses().length - 1);
- List<SynchronizeFileOperation> filesToSyncContents = new Vector<SynchronizeFileOperation>();
- for (int i = 1; i < resp.getResponses().length; ++i) {
- /// new OCFile instance with the data from the server
- WebdavEntry we = new WebdavEntry(resp.getResponses()[i], client.getBaseUri().getPath());
- OCFile file = fillOCFile(we);
-
- /// set data about local state, keeping unchanged former data if existing
- file.setLastSyncDateForProperties(mCurrentSyncTime);
- OCFile oldFile = mStorageManager.getFileByPath(file.getRemotePath());
- if (oldFile != null) {
- file.setKeepInSync(oldFile.keepInSync());
- file.setLastSyncDateForData(oldFile.getLastSyncDateForData());
- file.setModificationTimestampAtLastSyncForData(oldFile.getModificationTimestampAtLastSyncForData()); // must be kept unchanged when the file contents are not updated
- checkAndFixForeignStoragePath(oldFile);
- file.setStoragePath(oldFile.getStoragePath());
- }
- /// scan default location if local copy of file is not linked in OCFile instance
- if (file.getStoragePath() == null && !file.isDirectory()) {
- File f = new File(FileStorageUtils.getDefaultSavePathFor(mAccount.name, file));
- if (f.exists()) {
- file.setStoragePath(f.getAbsolutePath());
- file.setLastSyncDateForData(f.lastModified());
- }
- }
-
- /// prepare content synchronization for kept-in-sync files
- if (file.keepInSync()) {
- SynchronizeFileOperation operation = new SynchronizeFileOperation( oldFile,
- file,
- mStorageManager,
- mAccount,
- true,
- false,
- mContext
- );
- filesToSyncContents.add(operation);
- }
+ // check and process response
+ if (isMultiStatus(status)) {
+ // parse data from remote folder
+ WebdavEntry we = new WebdavEntry(query.getResponseBodyAsMultiStatus().getResponses()[0], client.getBaseUri().getPath());
+ OCFile remoteFolder = fillOCFile(we);
- updatedFiles.add(file);
- }
-
- // save updated contents in local database; all at once, trying to get a best performance in database update (not a big deal, indeed)
- mStorageManager.saveFiles(updatedFiles);
+ // check if remote and local folder are different
+ mRemoteFolderChanged = !(remoteFolder.getEtag().equalsIgnoreCase(mLocalFolder.getEtag()));
- // request for the synchronization of files AFTER saving last properties
- SynchronizeFileOperation op = null;
- RemoteOperationResult contentsResult = null;
- for (int i=0; i < filesToSyncContents.size(); i++) {
- op = filesToSyncContents.get(i);
- contentsResult = op.execute(client); // returns without waiting for upload or download finishes
- if (!contentsResult.isSuccess()) {
- if (contentsResult.getCode() == ResultCode.SYNC_CONFLICT) {
- mConflictsFound++;
- } else {
- mFailsInFavouritesFound++;
- if (contentsResult.getException() != null) {
- Log_OC.e(TAG, "Error while synchronizing favourites : " + contentsResult.getLogMessage(), contentsResult.getException());
- } else {
- Log_OC.e(TAG, "Error while synchronizing favourites : " + contentsResult.getLogMessage());
- }
- }
- } // won't let these fails break the synchronization process
- }
-
-
- // removal of obsolete files
- mChildren = mStorageManager.getDirectoryContent(mStorageManager.getFileById(mParentId));
- OCFile file;
- String currentSavePath = FileStorageUtils.getSavePath(mAccount.name);
- for (int i=0; i < mChildren.size(); ) {
- file = mChildren.get(i);
- if (file.getLastSyncDateForProperties() != mCurrentSyncTime) {
- Log_OC.d(TAG, "removing file: " + file);
- mStorageManager.removeFile(file, (file.isDown() && file.getStoragePath().startsWith(currentSavePath)));
- mChildren.remove(i);
- } else {
- i++;
- }
- }
+ result = new RemoteOperationResult(ResultCode.OK);
} else {
+ // check failed
client.exhaustResponse(query.getResponseBodyAsStream());
+ if (status == HttpStatus.SC_NOT_FOUND) {
+ removeLocalFolder();
+ }
+ result = new RemoteOperationResult(false, status, query.getResponseHeaders());
+ }
+
+ } catch (Exception e) {
+ result = new RemoteOperationResult(e);
+
+
+ } finally {
+ if (query != null)
+ query.releaseConnection(); // let the connection available for other methods
+ if (result.isSuccess()) {
+ Log_OC.i(TAG, "Checked " + mAccount.name + remotePath + " : " + (mRemoteFolderChanged ? "changed" : "not changed"));
+ } else {
+ if (result.isException()) {
+ Log_OC.e(TAG, "Checked " + mAccount.name + remotePath + " : " + result.getLogMessage(), result.getException());
+ } else {
+ Log_OC.e(TAG, "Checked " + mAccount.name + remotePath + " : " + result.getLogMessage());
+ }
}
- // prepare result object
+ }
+ return result;
+ }
+
+
+ private RemoteOperationResult fetchAndSyncRemoteFolder(WebdavClient client) {
+ RemoteOperationResult result = null;
+ String remotePath = null;
+ PropFindMethod query = null;
+ try {
+ remotePath = mLocalFolder.getRemotePath();
+ Log_OC.d(TAG, "Synchronizing " + mAccount.name + remotePath);
+
+ // remote request
+ query = new PropFindMethod(client.getBaseUri() + WebdavUtils.encodePath(remotePath),
+ DavConstants.PROPFIND_ALL_PROP,
+ DavConstants.DEPTH_1);
+ int status = client.executeMethod(query);
+
+ // check and process response
if (isMultiStatus(status)) {
+ synchronizeData(query.getResponseBodyAsMultiStatus(), client);
if (mConflictsFound > 0 || mFailsInFavouritesFound > 0) {
result = new RemoteOperationResult(ResultCode.SYNC_CONFLICT); // should be different result, but will do the job
-
} else {
result = new RemoteOperationResult(true, status, query.getResponseHeaders());
}
+
} else {
+ // synchronization failed
+ client.exhaustResponse(query.getResponseBodyAsStream());
+ if (status == HttpStatus.SC_NOT_FOUND) {
+ removeLocalFolder();
+ }
result = new RemoteOperationResult(false, status, query.getResponseHeaders());
}
-
-
-
+
} catch (Exception e) {
result = new RemoteOperationResult(e);
if (query != null)
query.releaseConnection(); // let the connection available for other methods
if (result.isSuccess()) {
- Log_OC.i(TAG, "Synchronizing " + mAccount.name + ", folder " + mRemotePath + ": " + result.getLogMessage());
+ Log_OC.i(TAG, "Synchronized " + mAccount.name + remotePath + ": " + result.getLogMessage());
} else {
if (result.isException()) {
- Log_OC.e(TAG, "Synchronizing " + mAccount.name + ", folder " + mRemotePath + ": " + result.getLogMessage(), result.getException());
+ Log_OC.e(TAG, "Synchronized " + mAccount.name + remotePath + ": " + result.getLogMessage(), result.getException());
} else {
- Log_OC.e(TAG, "Synchronizing " + mAccount.name + ", folder " + mRemotePath + ": " + result.getLogMessage());
+ Log_OC.e(TAG, "Synchronized " + mAccount.name + remotePath + ": " + result.getLogMessage());
}
}
+
}
-
return result;
}
-
+
+
+ private void removeLocalFolder() {
+ if (mStorageManager.fileExists(mLocalFolder.getFileId())) {
+ String currentSavePath = FileStorageUtils.getSavePath(mAccount.name);
+ mStorageManager.removeFolder(mLocalFolder, true, (mLocalFolder.isDown() && mLocalFolder.getStoragePath().startsWith(currentSavePath)));
+ }
+ }
+
+
+ /**
+ * Synchronizes the data retrieved from the server about the contents of the target folder
+ * with the current data in the local database.
+ *
+ * Grants that mChildren is updated with fresh data after execution.
+ *
+ * @param dataInServer Full response got from the server with the data of the target
+ * folder and its direct children.
+ * @param client Client instance to the remote server where the data were
+ * retrieved.
+ * @return 'True' when any change was made in the local data, 'false' otherwise.
+ */
+ private void synchronizeData(MultiStatus dataInServer, WebdavClient client) {
+ // get 'fresh data' from the database
+ mLocalFolder = mStorageManager.getFileByPath(mLocalFolder.getRemotePath());
+
+ // parse data from remote folder
+ WebdavEntry we = new WebdavEntry(dataInServer.getResponses()[0], client.getBaseUri().getPath());
+ OCFile remoteFolder = fillOCFile(we);
+ remoteFolder.setParentId(mLocalFolder.getParentId());
+ remoteFolder.setFileId(mLocalFolder.getFileId());
+
+ Log_OC.d(TAG, "Remote folder " + mLocalFolder.getRemotePath() + " changed - starting update of local data ");
+
+ List<OCFile> updatedFiles = new Vector<OCFile>(dataInServer.getResponses().length - 1);
+ List<SynchronizeFileOperation> filesToSyncContents = new Vector<SynchronizeFileOperation>();
+
+ // get current data about local contents of the folder to synchronize
+ List<OCFile> localFiles = mStorageManager.getFolderContent(mLocalFolder);
+ Map<String, OCFile> localFilesMap = new HashMap<String, OCFile>(localFiles.size());
+ for (OCFile file : localFiles) {
+ localFilesMap.put(file.getRemotePath(), file);
+ }
+
+ // loop to update every child
+ OCFile remoteFile = null, localFile = null;
+ for (int i = 1; i < dataInServer.getResponses().length; ++i) {
+ /// new OCFile instance with the data from the server
+ we = new WebdavEntry(dataInServer.getResponses()[i], client.getBaseUri().getPath());
+ remoteFile = fillOCFile(we);
+ remoteFile.setParentId(mLocalFolder.getFileId());
+
+ /// retrieve local data for the read file
+ //localFile = mStorageManager.getFileByPath(remoteFile.getRemotePath());
+ localFile = localFilesMap.remove(remoteFile.getRemotePath());
+
+ /// add to the remoteFile (the new one) data about LOCAL STATE (not existing in the server side)
+ remoteFile.setLastSyncDateForProperties(mCurrentSyncTime);
+ if (localFile != null) {
+ // some properties of local state are kept unmodified
+ remoteFile.setFileId(localFile.getFileId());
+ remoteFile.setKeepInSync(localFile.keepInSync());
+ remoteFile.setLastSyncDateForData(localFile.getLastSyncDateForData());
+ remoteFile.setModificationTimestampAtLastSyncForData(localFile.getModificationTimestampAtLastSyncForData());
+ remoteFile.setStoragePath(localFile.getStoragePath());
+ remoteFile.setEtag(localFile.getEtag()); // eTag will not be updated unless contents are synchronized (Synchronize[File|Folder]Operation with remoteFile as parameter)
+ if (remoteFile.isFolder()) {
+ remoteFile.setFileLength(localFile.getFileLength()); // TODO move operations about size of folders to FileContentProvider
+ }
+ } else {
+ remoteFile.setEtag(""); // remote eTag will not be updated unless contents are synchronized (Synchronize[File|Folder]Operation with remoteFile as parameter)
+ }
+
+ /// check and fix, if needed, local storage path
+ checkAndFixForeignStoragePath(remoteFile); // fixing old policy - now local files must be copied into the ownCloud local folder
+ searchForLocalFileInDefaultPath(remoteFile); // legacy
+
+ /// prepare content synchronization for kept-in-sync files
+ if (remoteFile.keepInSync()) {
+ SynchronizeFileOperation operation = new SynchronizeFileOperation( localFile,
+ remoteFile,
+ mStorageManager,
+ mAccount,
+ true,
+ mContext
+ );
+ filesToSyncContents.add(operation);
+ }
+
+ updatedFiles.add(remoteFile);
+ }
+
+ // save updated contents in local database; all at once, trying to get a best performance in database update (not a big deal, indeed)
+ mStorageManager.saveFolder(remoteFolder, updatedFiles, localFilesMap.values());
+
+ // request for the synchronization of file contents AFTER saving current remote properties
+ startContentSynchronizations(filesToSyncContents, client);
+
+ // removal of obsolete files
+ //removeObsoleteFiles();
+
+ // must be done AFTER saving all the children information, so that eTag is not updated in the database in case of unexpected exceptions
+ //mStorageManager.saveFile(remoteFolder);
+ mChildren = updatedFiles;
+
+ }
+
+ /**
+ * Performs a list of synchronization operations, determining if a download or upload is needed or
+ * if exists conflict due to changes both in local and remote contents of the each file.
+ *
+ * If download or upload is needed, request the operation to the corresponding service and goes on.
+ *
+ * @param filesToSyncContents Synchronization operations to execute.
+ * @param client Interface to the remote ownCloud server.
+ */
+ private void startContentSynchronizations(List<SynchronizeFileOperation> filesToSyncContents, WebdavClient client) {
+ RemoteOperationResult contentsResult = null;
+ for (SynchronizeFileOperation op: filesToSyncContents) {
+ contentsResult = op.execute(client); // returns without waiting for upload or download finishes
+ if (!contentsResult.isSuccess()) {
+ if (contentsResult.getCode() == ResultCode.SYNC_CONFLICT) {
+ mConflictsFound++;
+ } else {
+ mFailsInFavouritesFound++;
+ if (contentsResult.getException() != null) {
+ Log_OC.e(TAG, "Error while synchronizing favourites : " + contentsResult.getLogMessage(), contentsResult.getException());
+ } else {
+ Log_OC.e(TAG, "Error while synchronizing favourites : " + contentsResult.getLogMessage());
+ }
+ }
+ } // won't let these fails break the synchronization process
+ }
+ }
+
public boolean isMultiStatus(int status) {
return (status == HttpStatus.SC_MULTI_STATUS);
file.setFileLength(we.contentLength());
file.setMimetype(we.contentType());
file.setModificationTimestamp(we.modifiedTimestamp());
- file.setParentId(mParentId);
+ file.setEtag(we.etag());
return file;
}
*
* If the copy fails, the link to the local file is nullified. The account of forgotten files is kept in
* {@link #mForgottenLocalFiles}
- *
+ *)
* @param file File to check and fix.
*/
private void checkAndFixForeignStoragePath(OCFile file) {
}
}
-
+ /**
+ * Scans the default location for saving local copies of files searching for
+ * a 'lost' file with the same full name as the {@link OCFile} received as
+ * parameter.
+ *
+ * @param file File to associate a possible 'lost' local file.
+ */
+ private void searchForLocalFileInDefaultPath(OCFile file) {
+ if (file.getStoragePath() == null && !file.isFolder()) {
+ File f = new File(FileStorageUtils.getDefaultSavePathFor(mAccount.name, file));
+ if (f.exists()) {
+ file.setStoragePath(f.getAbsolutePath());
+ file.setLastSyncDateForData(f.lastModified());
+ }
+ }
+ }
+
+
+ /**
+ * Sends a message to any application component interested in the progress of the synchronization.
+ *
+ * @param inProgress 'True' when the synchronization progress is not finished.
+ * @param dirRemotePath Remote path of a folder that was just synchronized (with or without success)
+ */
+ private void sendStickyBroadcast(boolean inProgress, String dirRemotePath, RemoteOperationResult result) {
+ Intent i = new Intent(FileSyncService.getSyncMessage());
+ i.putExtra(FileSyncService.IN_PROGRESS, inProgress);
+ i.putExtra(FileSyncService.ACCOUNT_NAME, mAccount.name);
+ if (dirRemotePath != null) {
+ i.putExtra(FileSyncService.SYNC_FOLDER_REMOTE_PATH, dirRemotePath);
+ }
+ if (result != null) {
+ i.putExtra(FileSyncService.SYNC_RESULT, result);
+ }
+ mContext.sendStickyBroadcast(i);
+ }
+
+
+ public boolean getRemoteFolderChanged() {
+ return mRemoteFolderChanged;
+ }
+
}
projects / pub / Android / ownCloud.git / commitdiff