Improved navitagation through navigation list, reducing the number of requests to...

[pub/Android/ownCloud.git] / src / com / owncloud / android / operations / SynchronizeFolderOperation.java

diff --git a/src/com/owncloud/android/operations/SynchronizeFolderOperation.java b/src/com/owncloud/android/operations/SynchronizeFolderOperation.java
index aa7adf6..f8b69f4 100644 (file)
--- a/src/com/owncloud/android/operations/SynchronizeFolderOperation.java
+++ b/src/com/owncloud/android/operations/SynchronizeFolderOperation.java
@@ -23,7 +23,6 @@ import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.OutputStream;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.OutputStream;

-import java.util.ArrayList;

 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;


@@ -35,12 +34,13 @@ import org.apache.jackrabbit.webdav.client.methods.PropFindMethod;
 
 import android.accounts.Account;
 import android.content.Context;
 
 import android.accounts.Account;
 import android.content.Context;

-import android.os.storage.StorageManager;
+import android.content.Intent;

 
 import com.owncloud.android.Log_OC;
 import com.owncloud.android.datamodel.DataStorageManager;
 import com.owncloud.android.datamodel.OCFile;
 import com.owncloud.android.operations.RemoteOperationResult.ResultCode;
 
 import com.owncloud.android.Log_OC;
 import com.owncloud.android.datamodel.DataStorageManager;
 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;
 import com.owncloud.android.utils.FileStorageUtils;
 
 import eu.alefzero.webdav.WebdavClient;


@@ -49,32 +49,29 @@ import eu.alefzero.webdav.WebdavUtils;
 
 
 /**
 
 
 /**

- * 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();
 
  */
 public class SynchronizeFolderOperation extends RemoteOperation {
 
     private static final String TAG = SynchronizeFolderOperation.class.getSimpleName();
 

-    /** Remote folder to synchronize */
-    private String mRemotePath;

     
     

-    public String getRemotePath() {
-        return mRemotePath;
-    }
-
-
-    /** Timestamp for the synchronization in progress */
+    /** Time stamp for the synchronization process in progress */

     private long mCurrentSyncTime;
     
     private long mCurrentSyncTime;
     

-    /** Id of the folder to synchronize in the local database */
-    private long mParentId;
+    /** Remote folder to synchronize */
+    private OCFile mLocalFolder;

     
     

-    public long getParentId() {
-        return mParentId;
-    }
-
+    /** 'True' means that the properties of the folder should be updated also, not just its content */
+    private boolean mUpdateFolderProperties;

 
     /** Access to the local database */
     private DataStorageManager mStorageManager;
 
     /** Access to the local database */
     private DataStorageManager mStorageManager;


@@ -82,28 +79,48 @@ public class SynchronizeFolderOperation extends RemoteOperation {
     /** Account where the file to synchronize belongs */
     private Account mAccount;
     
     /** 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;
     
     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;
 
     private List<OCFile> mChildren;
 

+    /** Counter of conflicts found between local and remote files */

     private int mConflictsFound;
 
     private int mConflictsFound;
 

+    /** Counter of failed operations in synchronization of kept-in-sync files */

     private int mFailsInFavouritesFound;
 
     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;
     private Map<String, String> mForgottenLocalFiles;

+
+    /** 'True' means that this operation is part of a full account synchronization */ 
+    private boolean mSyncFullAccount;

     
     
     
     

-    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 currentSyncTime, 

-                                        long parentId, 
+                                        boolean updateFolderProperties,
+                                        boolean syncFullAccount,

                                         DataStorageManager dataStorageManager, 
                                         Account account, 
                                         Context context ) {
                                         DataStorageManager dataStorageManager, 
                                         Account account, 
                                         Context context ) {

-        mRemotePath = remotePath;
+        mLocalFolder = folder;

         mCurrentSyncTime = currentSyncTime;
         mCurrentSyncTime = currentSyncTime;

-        mParentId = parentId;
+        mUpdateFolderProperties = updateFolderProperties;
+        mSyncFullAccount = syncFullAccount;

         mStorageManager = dataStorageManager;
         mAccount = account;
         mContext = context;
         mStorageManager = dataStorageManager;
         mAccount = account;
         mContext = context;


@@ -126,176 +143,236 @@ public class SynchronizeFolderOperation extends RemoteOperation {
     /**
      * Returns the list of files and folders contained in the synchronized folder, if called after synchronization is complete.
      * 
     /**
      * 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;
     }
     
      */
     public List<OCFile> getChildren() {
         return mChildren;
     }
     

-    
+    /**
+     * Performs the synchronization.
+     * 
+     * {@inheritDoc}
+     */

     @Override
     protected RemoteOperationResult run(WebdavClient client) {
         RemoteOperationResult result = null;
         mFailsInFavouritesFound = 0;
         mConflictsFound = 0;
         mForgottenLocalFiles.clear();
     @Override
     protected RemoteOperationResult run(WebdavClient client) {
         RemoteOperationResult result = null;
         mFailsInFavouritesFound = 0;
         mConflictsFound = 0;
         mForgottenLocalFiles.clear();

-        
-        // code before in FileSyncAdapter.fetchData
+        String remotePath = null;

         PropFindMethod query = null;
         try {
         PropFindMethod query = null;
         try {

-            Log_OC.d(TAG, "Synchronizing " + mAccount.name + ", fetching files in " + mRemotePath);
-            
+            remotePath = mLocalFolder.getRemotePath();
+            Log_OC.d(TAG, "Synchronizing " + mAccount.name + remotePath);
+

             // remote request 
             // remote request 

-            query = new PropFindMethod(client.getBaseUri() + WebdavUtils.encodePath(mRemotePath));
+            query = new PropFindMethod(client.getBaseUri() + WebdavUtils.encodePath(remotePath));

             int status = client.executeMethod(query);
             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());
-                    
-                    // Properties of server folder
-                    OCFile parent = fillOCFile(we);
-                    // Properties of local folder
-                    OCFile localParent = mStorageManager.getFileById(1);
-                    if (parent.getEtag() != localParent.getEtag()) {
-                        mStorageManager.saveFile(parent);
-                        mParentId = parent.getFileId();
+
+            // check and process response
+            if (isMultiStatus(status)) {
+                boolean folderChanged = synchronizeData(query.getResponseBodyAsMultiStatus(), client);
+                if (folderChanged) {
+                    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 {
+                    result = new RemoteOperationResult(ResultCode.OK_NO_CHANGES_ON_DIR);

                 }
                 
                 }
                 

-                
-                // read contents in folder
-                List<String> filesOnServer = new ArrayList<String> (); // Contains the lists of files on server
-                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);
-                    
-                    filesOnServer.add(file.getRemotePath()); // Registry the file in the list
-                    
-                    /// set data about local state, keeping unchanged former data if existing
-                    file.setLastSyncDateForProperties(mCurrentSyncTime);
-                    OCFile oldFile = mStorageManager.getFileByPath(file.getRemotePath());
-                   
-                    // Check if it is needed to synchronize the folder
-                    boolean fileChanged = false;
-                    if (oldFile != null) {
-                        if (!file.getEtag().equalsIgnoreCase(oldFile.getEtag())) {
-                           fileChanged = true; 
-                        }                        
-                    } else
-                        fileChanged= true;
-
-                    if (fileChanged){
-                        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);
-                        }
-
-                        updatedFiles.add(file);
+            } else {
+                // synchronization failed
+                client.exhaustResponse(query.getResponseBodyAsStream());
+                if (status == HttpStatus.SC_NOT_FOUND) {
+                    if (mStorageManager.fileExists(mLocalFolder.getFileId())) {
+                        String currentSavePath = FileStorageUtils.getSavePath(mAccount.name);
+                        mStorageManager.removeDirectory(mLocalFolder, true, (mLocalFolder.isDown() && mLocalFolder.getStoragePath().startsWith(currentSavePath)));

                     }
                 }
                     }
                 }

+                result = new RemoteOperationResult(false, status, query.getResponseHeaders());
+            }
+
+        } catch (Exception e) {
+            result = new RemoteOperationResult(e);
+            

 
 

-                // 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);
-
-                // 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.d(TAG, "Error while synchronizing favourites : " +  contentsResult.getLogMessage(), contentsResult.getException());
-                            } else {
-                                Log_OC.d(TAG, "Error while synchronizing favourites : " + contentsResult.getLogMessage());
-                            }
-                        }
-                    }   // won't let these fails break the synchronization process
+        } finally {
+            if (query != null)
+                query.releaseConnection();  // let the connection available for other methods
+            if (result.isSuccess()) {
+                Log_OC.i(TAG, "Synchronized " + mAccount.name + remotePath + ": " + result.getLogMessage());
+            } else {
+                if (result.isException()) {
+                    Log_OC.e(TAG, "Synchronized " + mAccount.name + remotePath  + ": " + result.getLogMessage(), result.getException());
+                } else {
+                    Log_OC.e(TAG, "Synchronized " + mAccount.name + remotePath + ": " + result.getLogMessage());

                 }
                 }

+            }
+            
+            if (!mSyncFullAccount) {            
+                sendStickyBroadcast(false, remotePath, result);
+            }
+        }

 
 

-                    
-                // 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) {
-                    if (!filesOnServer.contains(file.getRemotePath())) {
-                        Log_OC.d(TAG, "removing file: " + file.getFileName());
-                        mStorageManager.removeFile(file, (file.isDown() && file.getStoragePath().startsWith(currentSavePath)));
-                        mChildren.remove(i);
-                    } else {
-                        i++;
-                    }
+        return result;
+    }
+
+
+    /**
+     *  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 boolean synchronizeData(MultiStatus dataInServer, WebdavClient client) {
+        // get 'fresh data' from the database
+        mLocalFolder = mStorageManager.getFileById(mLocalFolder.getFileId());
+        
+        // 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());
+        
+        // check if remote and local folder are different
+        boolean folderChanged = !(remoteFolder.getEtag().equalsIgnoreCase(mLocalFolder.getEtag()));
+        
+        if (!folderChanged) {
+            if (mUpdateFolderProperties) {  // TODO check if this is really necessary
+                mStorageManager.saveFile(remoteFolder);
+            }
+            
+            mChildren = mStorageManager.getDirectoryContent(mLocalFolder);
+            
+        } else {
+            // read info of folder contents
+            List<OCFile> updatedFiles = new Vector<OCFile>(dataInServer.getResponses().length - 1);
+            List<SynchronizeFileOperation> filesToSyncContents = new Vector<SynchronizeFileOperation>();
+            
+            // 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());
+                
+                /// add to the remoteFile (the new one) data about LOCAL STATE (not existing in the server side)
+                remoteFile.setLastSyncDateForProperties(mCurrentSyncTime);
+                if (localFile != null) {
+                    // properties of local state are kept unmodified 
+                    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)
+                } 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 need, 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, 
+                                                                                        false,          
+                                                                                        mContext
+                                                                                        );
+                    filesToSyncContents.add(operation);

                 }
                 
                 }
                 

-            } else {
-                client.exhaustResponse(query.getResponseBodyAsStream());
+                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.saveFiles(updatedFiles);
+
+            // 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);

             
             

-            // prepare result object
-            if (isMultiStatus(status)) {
-                if (mConflictsFound > 0  || mFailsInFavouritesFound > 0) { 
-                    result = new RemoteOperationResult(ResultCode.SYNC_CONFLICT);   // should be different result, but will do the job
-                            
+        }
+        
+        return folderChanged;
+        
+    }
+
+
+    /**
+     *  Removes obsolete children in the folder after saving all the new data.
+     */
+    private void removeObsoleteFiles() {
+        mChildren = mStorageManager.getDirectoryContent(mLocalFolder);
+        OCFile file;
+        for (int i=0; i < mChildren.size(); ) {
+            file = mChildren.get(i);
+            if (file.getLastSyncDateForProperties() != mCurrentSyncTime) {
+                if (file.isDirectory()) {
+                    Log_OC.d(TAG, "removing folder: " + file);
+                    mStorageManager.removeDirectory(file, true, true);

                 } else {
                 } else {

-                    result = new RemoteOperationResult(true, status);
+                    Log_OC.d(TAG, "removing file: " + file);
+                    mStorageManager.removeFile(file, true);

                 }
                 }

+                mChildren.remove(i);

             } else {
             } else {

-                result = new RemoteOperationResult(false, status);
+                i++;

             }
             }

-            Log_OC.i(TAG, "Synchronizing " + mAccount.name + ", folder " + mRemotePath + ": " + result.getLogMessage());
-            
-            
-        } catch (Exception e) {
-            result = new RemoteOperationResult(e);
-            Log_OC.e(TAG, "Synchronizing " + mAccount.name + ", folder " + mRemotePath + ": " + result.getLogMessage(), result.getException());
+        }
+    }

 
 

-        } finally {
-            if (query != null)
-                query.releaseConnection();  // let the connection available for other methods
+
+    /**
+     * 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

         }
         }

-        
-        return result;

     }
     }

-    
+

 
     public boolean isMultiStatus(int status) {
         return (status == HttpStatus.SC_MULTI_STATUS); 
 
     public boolean isMultiStatus(int status) {
         return (status == HttpStatus.SC_MULTI_STATUS); 


@@ -314,7 +391,6 @@ public class SynchronizeFolderOperation extends RemoteOperation {
         file.setFileLength(we.contentLength());
         file.setMimetype(we.contentType());
         file.setModificationTimestamp(we.modifiedTimestamp());
         file.setFileLength(we.contentLength());
         file.setMimetype(we.contentType());
         file.setModificationTimestamp(we.modifiedTimestamp());

-        file.setParentId(mParentId);

         file.setEtag(we.etag());
         return file;
     }
         file.setEtag(we.etag());
         return file;
     }


@@ -326,7 +402,7 @@ public class SynchronizeFolderOperation extends RemoteOperation {
      * 
      * If the copy fails, the link to the local file is nullified. The account of forgotten files is kept in 
      * {@link #mForgottenLocalFiles}
      * 
      * 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) {
      * @param file      File to check and fix.
      */
     private void checkAndFixForeignStoragePath(OCFile file) {


@@ -384,4 +460,41 @@ public class SynchronizeFolderOperation extends RemoteOperation {
     }
 
 
     }
 
 

+    /**
+     * 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.isDirectory()) {
+            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.SYNC_MESSAGE);
+        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);
+    }
+

 }
 }