Merge branch 'master' of github.com:owncloud/android into setAsWallpaper

[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 4e1e5bc..b8da4a1 100644 (file)
--- a/src/com/owncloud/android/operations/SynchronizeFolderOperation.java
+++ b/src/com/owncloud/android/operations/SynchronizeFolderOperation.java
@@ -1,5 +1,8 @@
-/* ownCloud Android client application
- *   Copyright (C) 2012-2014 ownCloud Inc.
+/**
+ *   ownCloud Android client application
+ *
+ *   @author David A. Velasco
+ *   Copyright (C) 2015 ownCloud Inc.

  *
  *   This program is free software: you can redistribute it and/or modify
  *   it under the terms of the GNU General Public License version 2,
  *
  *   This program is free software: you can redistribute it and/or modify
  *   it under the terms of the GNU General Public License version 2,


@@ -17,17 +20,24 @@
 
 package com.owncloud.android.operations;
 
 
 package com.owncloud.android.operations;
 

+import java.io.File;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Vector;
+

 import android.accounts.Account;
 import android.content.Context;
 import android.content.Intent;
 import android.util.Log;
 
 import android.accounts.Account;
 import android.content.Context;
 import android.content.Intent;
 import android.util.Log;
 

+

 import com.owncloud.android.datamodel.FileDataStorageManager;
 import com.owncloud.android.datamodel.OCFile;
 import com.owncloud.android.files.services.FileDownloader;
 import com.owncloud.android.lib.common.OwnCloudClient;
 import com.owncloud.android.lib.common.operations.OperationCancelledException;
 import com.owncloud.android.datamodel.FileDataStorageManager;
 import com.owncloud.android.datamodel.OCFile;
 import com.owncloud.android.files.services.FileDownloader;
 import com.owncloud.android.lib.common.OwnCloudClient;
 import com.owncloud.android.lib.common.operations.OperationCancelledException;

-import com.owncloud.android.lib.common.operations.RemoteOperation;

 import com.owncloud.android.lib.common.operations.RemoteOperationResult;
 import com.owncloud.android.lib.common.operations.RemoteOperationResult.ResultCode;
 import com.owncloud.android.lib.common.utils.Log_OC;
 import com.owncloud.android.lib.common.operations.RemoteOperationResult;
 import com.owncloud.android.lib.common.operations.RemoteOperationResult.ResultCode;
 import com.owncloud.android.lib.common.utils.Log_OC;


@@ -35,14 +45,9 @@ import com.owncloud.android.lib.resources.files.ReadRemoteFileOperation;
 import com.owncloud.android.lib.resources.files.ReadRemoteFolderOperation;
 import com.owncloud.android.lib.resources.files.RemoteFile;
 import com.owncloud.android.operations.common.SyncOperation;
 import com.owncloud.android.lib.resources.files.ReadRemoteFolderOperation;
 import com.owncloud.android.lib.resources.files.RemoteFile;
 import com.owncloud.android.operations.common.SyncOperation;

+import com.owncloud.android.services.OperationsService;

 import com.owncloud.android.utils.FileStorageUtils;
 
 import com.owncloud.android.utils.FileStorageUtils;
 

-import java.io.File;
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-import java.util.Vector;

 import java.util.concurrent.atomic.AtomicBoolean;
 
 //import android.support.v4.content.LocalBroadcastManager;
 import java.util.concurrent.atomic.AtomicBoolean;
 
 //import android.support.v4.content.LocalBroadcastManager;


@@ -55,9 +60,8 @@ import java.util.concurrent.atomic.AtomicBoolean;
  *  Fetches the list and properties of the files contained in the given folder, including their 
  *  properties, and updates the local database with them.
  *  
  *  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
+ *  Does NOT enter in the child folders to synchronize their contents also, BUT requests for a new operation instance
+ *  doing so.

  */
 public class SynchronizeFolderOperation extends SyncOperation {
 
  */
 public class SynchronizeFolderOperation extends SyncOperation {
 


@@ -89,19 +93,14 @@ public class SynchronizeFolderOperation extends SyncOperation {
 
     /** 'True' means that the remote folder changed and should be fetched */
     private boolean mRemoteFolderChanged;
 
     /** 'True' means that the remote folder changed and should be fetched */
     private boolean mRemoteFolderChanged;

-    private final AtomicBoolean mCancellationRequested = new AtomicBoolean(false);

 
     private List<OCFile> mFilesForDirectDownload;
         // to avoid extra PROPFINDs when there was no change in the folder
     
 
     private List<OCFile> mFilesForDirectDownload;
         // to avoid extra PROPFINDs when there was no change in the folder
     

-    private List<SyncOperation> mFilesToSyncContentsWithoutUpload;
-        // this will go out when 'folder synchronization' replaces 'folder download'; step by step  
-
-    private List<SyncOperation> mFavouriteFilesToSyncContents;
+    private List<SyncOperation> mFilesToSyncContents;

         // this will be used for every file when 'folder synchronization' replaces 'folder download' 
 
         // this will be used for every file when 'folder synchronization' replaces 'folder download' 
 

-    private List<SyncOperation> mFoldersToWalkDown;
-
+    private final AtomicBoolean mCancellationRequested;

 
     /**
      * Creates a new instance of {@link SynchronizeFolderOperation}.
 
     /**
      * Creates a new instance of {@link SynchronizeFolderOperation}.


@@ -111,17 +110,16 @@ public class SynchronizeFolderOperation extends SyncOperation {
      * @param   account                 ownCloud account where the folder is located.
      * @param   currentSyncTime         Time stamp for the synchronization process in progress.
      */
      * @param   account                 ownCloud account where the folder is located.
      * @param   currentSyncTime         Time stamp for the synchronization process in progress.
      */

-    public SynchronizeFolderOperation(Context context, String remotePath, Account account, long currentSyncTime){
+    public SynchronizeFolderOperation(Context context, String remotePath, Account account,
+                                      long currentSyncTime){

         mRemotePath = remotePath;
         mCurrentSyncTime = currentSyncTime;
         mAccount = account;
         mContext = context;
         mRemoteFolderChanged = false;
         mFilesForDirectDownload = new Vector<OCFile>();
         mRemotePath = remotePath;
         mCurrentSyncTime = currentSyncTime;
         mAccount = account;
         mContext = context;
         mRemoteFolderChanged = false;
         mFilesForDirectDownload = new Vector<OCFile>();

-        mFilesToSyncContentsWithoutUpload = new Vector<SyncOperation>();
-        mFavouriteFilesToSyncContents = new Vector<SyncOperation>();
-        mFoldersToWalkDown = new Vector<SyncOperation>();
-        
+        mFilesToSyncContents = new Vector<SyncOperation>();
+        mCancellationRequested = new AtomicBoolean(false);

     }
 
 
     }
 
 


@@ -143,45 +141,50 @@ public class SynchronizeFolderOperation extends SyncOperation {
         RemoteOperationResult result = null;
         mFailsInFileSyncsFound = 0;
         mConflictsFound = 0;
         RemoteOperationResult result = null;
         mFailsInFileSyncsFound = 0;
         mConflictsFound = 0;

-
-        synchronized(mCancellationRequested) {
-            if (mCancellationRequested.get()) {
-                // Cancel each operation in mFoldersToWalkDown
-                for (SyncOperation  synchOp: mFoldersToWalkDown) {
-                    ((SynchronizeFolderOperation) synchOp).cancel();
-                }
-                return new RemoteOperationResult(new OperationCancelledException());
-            }
-        }
-
-        // get locally cached information about folder 
-        mLocalFolder = getStorageManager().getFileByPath(mRemotePath);   

         
         

-        result = checkForChanges(client);
-
-        if (result.isSuccess()) {
-            if (mRemoteFolderChanged) {
-                result = fetchAndSyncRemoteFolder(client);
+        try {
+            // get locally cached information about folder 
+            mLocalFolder = getStorageManager().getFileByPath(mRemotePath);   
+            
+            result = checkForChanges(client);
+    
+            if (result.isSuccess()) {
+                if (mRemoteFolderChanged) {
+                    result = fetchAndSyncRemoteFolder(client);
+                    
+                } else {
+                    prepareOpsFromLocalKnowledge();
+                }

                 
                 

-            } else {
-                prepareOpsFromLocalKnowledge();
+                if (result.isSuccess()) {
+                    syncContents(client);
+                }
+

             }
             
             }
             

-            if (result.isSuccess()) {
-                syncContents(client);
+            if (mCancellationRequested.get()) {
+                throw new OperationCancelledException();

             }
             }

+            
+        } catch (OperationCancelledException e) {
+            result = new RemoteOperationResult(e);

         }
 
         return result;
 
     }
 
         }
 
         return result;
 
     }
 

-    private RemoteOperationResult checkForChanges(OwnCloudClient client) {
+    private RemoteOperationResult checkForChanges(OwnCloudClient client)
+            throws OperationCancelledException {

         Log_OC.d(TAG, "Checking changes in " + mAccount.name + mRemotePath);
 
         mRemoteFolderChanged = true;
         RemoteOperationResult result = null;
         
         Log_OC.d(TAG, "Checking changes in " + mAccount.name + mRemotePath);
 
         mRemoteFolderChanged = true;
         RemoteOperationResult result = null;
         

+        if (mCancellationRequested.get()) {
+            throw new OperationCancelledException();
+        }
+        

         // remote request
         ReadRemoteFileOperation operation = new ReadRemoteFileOperation(mRemotePath);
         result = operation.execute(client);
         // remote request
         ReadRemoteFileOperation operation = new ReadRemoteFileOperation(mRemotePath);
         result = operation.execute(client);


@@ -209,13 +212,19 @@ public class SynchronizeFolderOperation extends SyncOperation {
                 Log_OC.e(TAG, "Checked " + mAccount.name + mRemotePath + " : " +
                         result.getLogMessage());
             }
                 Log_OC.e(TAG, "Checked " + mAccount.name + mRemotePath + " : " +
                         result.getLogMessage());
             }

+

         }
 
         return result;
     }
 
 
         }
 
         return result;
     }
 
 

-    private RemoteOperationResult fetchAndSyncRemoteFolder(OwnCloudClient client) {
+    private RemoteOperationResult fetchAndSyncRemoteFolder(OwnCloudClient client)
+            throws OperationCancelledException {
+        if (mCancellationRequested.get()) {
+            throw new OperationCancelledException();
+        }
+        

         ReadRemoteFolderOperation operation = new ReadRemoteFolderOperation(mRemotePath);
         RemoteOperationResult result = operation.execute(client);
         Log_OC.d(TAG, "Synchronizing " + mAccount.name + mRemotePath);
         ReadRemoteFolderOperation operation = new ReadRemoteFolderOperation(mRemotePath);
         RemoteOperationResult result = operation.execute(client);
         Log_OC.d(TAG, "Synchronizing " + mAccount.name + mRemotePath);


@@ -243,7 +252,8 @@ public class SynchronizeFolderOperation extends SyncOperation {
             storageManager.removeFolder(
                     mLocalFolder,
                     true,
             storageManager.removeFolder(
                     mLocalFolder,
                     true,

-                    (   mLocalFolder.isDown() &&        // TODO: debug, I think this is always false for folders
+                    (   mLocalFolder.isDown() &&        // TODO: debug, I think this is
+                                                        // always false for folders

                             mLocalFolder.getStoragePath().startsWith(currentSavePath)
                     )
             );
                             mLocalFolder.getStoragePath().startsWith(currentSavePath)
                     )
             );


@@ -263,11 +273,12 @@ public class SynchronizeFolderOperation extends SyncOperation {
      *                          retrieved.
      *  @return                 'True' when any change was made in the local data, 'false' otherwise
      */
      *                          retrieved.
      *  @return                 'True' when any change was made in the local data, 'false' otherwise
      */

-    private void synchronizeData(ArrayList<Object> folderAndFiles, OwnCloudClient client) {
+    private void synchronizeData(ArrayList<Object> folderAndFiles, OwnCloudClient client)
+            throws OperationCancelledException {

         FileDataStorageManager storageManager = getStorageManager();
         
         // parse data from remote folder
         FileDataStorageManager storageManager = getStorageManager();
         
         // parse data from remote folder

-        OCFile remoteFolder = fillOCFile((RemoteFile)folderAndFiles.get(0));
+        OCFile remoteFolder = FileStorageUtils.fillOCFile((RemoteFile) folderAndFiles.get(0));

         remoteFolder.setParentId(mLocalFolder.getParentId());
         remoteFolder.setFileId(mLocalFolder.getFileId());
 
         remoteFolder.setParentId(mLocalFolder.getParentId());
         remoteFolder.setFileId(mLocalFolder.getFileId());
 


@@ -276,97 +287,92 @@ public class SynchronizeFolderOperation extends SyncOperation {
 
         List<OCFile> updatedFiles = new Vector<OCFile>(folderAndFiles.size() - 1);
         mFilesForDirectDownload.clear();
 
         List<OCFile> updatedFiles = new Vector<OCFile>(folderAndFiles.size() - 1);
         mFilesForDirectDownload.clear();

-        mFilesToSyncContentsWithoutUpload.clear();
-        mFavouriteFilesToSyncContents.clear();
-        mFoldersToWalkDown.clear();
+        mFilesToSyncContents.clear();
+
+        if (mCancellationRequested.get()) {
+            throw new OperationCancelledException();
+        }

 
         // get current data about local contents of the folder to synchronize
 
         // get current data about local contents of the folder to synchronize

-        List<OCFile> localFiles = storageManager.getFolderContent(mLocalFolder);
+        // TODO Enable when "On Device" is recovered ?
+        List<OCFile> localFiles = storageManager.getFolderContent(mLocalFolder/*, false*/);

         Map<String, OCFile> localFilesMap = new HashMap<String, OCFile>(localFiles.size());
         for (OCFile file : localFiles) {
             localFilesMap.put(file.getRemotePath(), file);
         }
 
         // loop to synchronize every child
         Map<String, OCFile> localFilesMap = new HashMap<String, OCFile>(localFiles.size());
         for (OCFile file : localFiles) {
             localFilesMap.put(file.getRemotePath(), file);
         }
 
         // loop to synchronize every child

-        OCFile remoteFile = null, localFile = null;
+        OCFile remoteFile = null, localFile = null, updatedFile = null;
+        RemoteFile r;

         for (int i=1; i<folderAndFiles.size(); i++) {
             /// new OCFile instance with the data from the server
         for (int i=1; i<folderAndFiles.size(); i++) {
             /// new OCFile instance with the data from the server

-            remoteFile = fillOCFile((RemoteFile)folderAndFiles.get(i));
-            remoteFile.setParentId(mLocalFolder.getFileId());
+            r = (RemoteFile) folderAndFiles.get(i);
+            remoteFile = FileStorageUtils.fillOCFile(r);
+
+            /// new OCFile instance to merge fresh data from server with local state
+            updatedFile = FileStorageUtils.fillOCFile(r);
+            updatedFile.setParentId(mLocalFolder.getFileId());

 
             /// retrieve local data for the read file
             //  localFile = mStorageManager.getFileByPath(remoteFile.getRemotePath());
             localFile = localFilesMap.remove(remoteFile.getRemotePath());
 
 
             /// 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 server)
-            remoteFile.setLastSyncDateForProperties(mCurrentSyncTime);
+            /// add to updatedFile data about LOCAL STATE (not existing in server)
+            updatedFile.setLastSyncDateForProperties(mCurrentSyncTime);

             if (localFile != null) {
             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(
+                updatedFile.setFileId(localFile.getFileId());
+                updatedFile.setFavorite(localFile.isFavorite());
+                updatedFile.setLastSyncDateForData(localFile.getLastSyncDateForData());
+                updatedFile.setModificationTimestampAtLastSyncForData(

                         localFile.getModificationTimestampAtLastSyncForData()
                 );
                         localFile.getModificationTimestampAtLastSyncForData()
                 );

-                remoteFile.setStoragePath(localFile.getStoragePath());
-                // eTag will not be updated unless contents are synchronized
-                //  (Synchronize[File|Folder]Operation with remoteFile as parameter)
-                remoteFile.setEtag(localFile.getEtag());
-                if (remoteFile.isFolder()) {
-                    remoteFile.setFileLength(localFile.getFileLength());
+                updatedFile.setStoragePath(localFile.getStoragePath());
+                // eTag will not be updated unless file CONTENTS are synchronized
+                updatedFile.setEtag(localFile.getEtag());
+                if (updatedFile.isFolder()) {
+                    updatedFile.setFileLength(localFile.getFileLength());

                         // TODO move operations about size of folders to FileContentProvider
                 } else if (mRemoteFolderChanged && remoteFile.isImage() &&
                         // TODO move operations about size of folders to FileContentProvider
                 } else if (mRemoteFolderChanged && remoteFile.isImage() &&

-                        remoteFile.getModificationTimestamp() != localFile.getModificationTimestamp()) {
-                    remoteFile.setNeedsUpdateThumbnail(true);
+                        remoteFile.getModificationTimestamp() !=
+                                localFile.getModificationTimestamp()) {
+                    updatedFile.setNeedsUpdateThumbnail(true);

                     Log.d(TAG, "Image " + remoteFile.getFileName() + " updated on the server");
                 }
                     Log.d(TAG, "Image " + remoteFile.getFileName() + " updated on the server");
                 }

-                remoteFile.setPublicLink(localFile.getPublicLink());
-                remoteFile.setShareByLink(localFile.isShareByLink());
+                updatedFile.setPublicLink(localFile.getPublicLink());
+                updatedFile.setShareByLink(localFile.isShareByLink());
+                updatedFile.setEtagInConflict(localFile.getEtagInConflict());

             } else {
             } else {

-                // remote eTag will not be updated unless contents are synchronized
-                //  (Synchronize[File|Folder]Operation with remoteFile as parameter)
-                remoteFile.setEtag("");
+                // remote eTag will not be updated unless file CONTENTS are synchronized
+                updatedFile.setEtag("");

             }
 
             /// check and fix, if needed, local storage path
             }
 
             /// check and fix, if needed, local storage path

-            searchForLocalFileInDefaultPath(remoteFile);
+            searchForLocalFileInDefaultPath(updatedFile);

             
             /// classify file to sync/download contents later
             if (remoteFile.isFolder()) {
                 /// to download children files recursively
             
             /// classify file to sync/download contents later
             if (remoteFile.isFolder()) {
                 /// to download children files recursively

-                SynchronizeFolderOperation synchFolderOp =  new SynchronizeFolderOperation( 
-                        mContext,
-                        remoteFile.getRemotePath(),
-                        mAccount,
-                        mCurrentSyncTime
-                );
-                mFoldersToWalkDown.add(synchFolderOp);
-                
-            } else if (remoteFile.keepInSync()) {
-                /// prepare content synchronization for kept-in-sync files
-                SynchronizeFileOperation operation = new SynchronizeFileOperation(
-                        localFile,
-                        remoteFile,
-                        mAccount,
-                        true,
-                        mContext
-                    );
-                mFavouriteFilesToSyncContents.add(operation);
-                
+                synchronized (mCancellationRequested) {
+                    if (mCancellationRequested.get()) {
+                        throw new OperationCancelledException();
+                    }
+                    startSyncFolderOperation(remoteFile.getRemotePath());
+                }
+

             } else {
             } else {

-                /// prepare limited synchronization for regular files
+                /// prepare content synchronization for files (any file, not just favorites)

                 SynchronizeFileOperation operation = new SynchronizeFileOperation(
                         localFile,
                         remoteFile,
                         mAccount,
                         true,
                 SynchronizeFileOperation operation = new SynchronizeFileOperation(
                         localFile,
                         remoteFile,
                         mAccount,
                         true,

-                        false,

                         mContext
                     );
                         mContext
                     );

-                mFilesToSyncContentsWithoutUpload.add(operation);
+                mFilesToSyncContents.add(operation);
+                

             }
 
             }
 

-            updatedFiles.add(remoteFile);
+            updatedFiles.add(updatedFile);

         }
 
         // save updated contents in local database
         }
 
         // save updated contents in local database


@@ -375,44 +381,60 @@ public class SynchronizeFolderOperation extends SyncOperation {
     }
     
     
     }
     
     

-    private void prepareOpsFromLocalKnowledge() {
-        List<OCFile> children = getStorageManager().getFolderContent(mLocalFolder);
+    private void prepareOpsFromLocalKnowledge() throws OperationCancelledException {
+        // TODO Enable when "On Device" is recovered ?
+        List<OCFile> children = getStorageManager().getFolderContent(mLocalFolder/*, false*/);

         for (OCFile child : children) {
             /// classify file to sync/download contents later
             if (child.isFolder()) {
                 /// to download children files recursively
         for (OCFile child : children) {
             /// classify file to sync/download contents later
             if (child.isFolder()) {
                 /// to download children files recursively

-                SynchronizeFolderOperation synchFolderOp =  new SynchronizeFolderOperation( 
-                        mContext,
-                        child.getRemotePath(),
-                        mAccount,
-                        mCurrentSyncTime
-                );
-                mFoldersToWalkDown.add(synchFolderOp);
-                
+                synchronized(mCancellationRequested) {
+                    if (mCancellationRequested.get()) {
+                        throw new OperationCancelledException();
+                    }
+                    startSyncFolderOperation(child.getRemotePath());
+                }
+

             } else {
             } else {

-                /// prepare limited synchronization for regular files
+                /// synchronization for regular files

                 if (!child.isDown()) {
                     mFilesForDirectDownload.add(child);
                 if (!child.isDown()) {
                     mFilesForDirectDownload.add(child);

+
+                } else {
+                    /// this should result in direct upload of files that were locally modified
+                    SynchronizeFileOperation operation = new SynchronizeFileOperation(
+                            child,
+                            (child.getEtagInConflict() != null ? child : null),
+                            mAccount,
+                            true,
+                            mContext
+                    );
+                    mFilesToSyncContents.add(operation);
+

                 }
                 }

+

             }
         }
     }
 
 
             }
         }
     }
 
 

-    private void syncContents(OwnCloudClient client) {
+    private void syncContents(OwnCloudClient client) throws OperationCancelledException {

         startDirectDownloads();
         startDirectDownloads();

-        startContentSynchronizations(mFilesToSyncContentsWithoutUpload, client);
-        startContentSynchronizations(mFavouriteFilesToSyncContents, client);
-        walkSubfolders(client);    // this must be the last!
+        startContentSynchronizations(mFilesToSyncContents, client);

     }
 
     
     }
 
     

-    private void startDirectDownloads() {
+    private void startDirectDownloads() throws OperationCancelledException {

         for (OCFile file : mFilesForDirectDownload) {
         for (OCFile file : mFilesForDirectDownload) {

-            Intent i = new Intent(mContext, FileDownloader.class);
-            i.putExtra(FileDownloader.EXTRA_ACCOUNT, mAccount);
-            i.putExtra(FileDownloader.EXTRA_FILE, file);
-            mContext.startService(i);
+            synchronized(mCancellationRequested) {
+                if (mCancellationRequested.get()) {
+                    throw new OperationCancelledException();
+                }
+                Intent i = new Intent(mContext, FileDownloader.class);
+                i.putExtra(FileDownloader.EXTRA_ACCOUNT, mAccount);
+                i.putExtra(FileDownloader.EXTRA_FILE, file);
+                mContext.startService(i);
+            }

         }
     }
 
         }
     }
 


@@ -426,9 +448,16 @@ public class SynchronizeFolderOperation extends SyncOperation {
      * @param filesToSyncContents       Synchronization operations to execute.
      * @param client                    Interface to the remote ownCloud server.
      */
      * @param filesToSyncContents       Synchronization operations to execute.
      * @param client                    Interface to the remote ownCloud server.
      */

-    private void startContentSynchronizations(List<SyncOperation> filesToSyncContents, OwnCloudClient client) {
+    private void startContentSynchronizations(List<SyncOperation> filesToSyncContents,
+                                              OwnCloudClient client)
+            throws OperationCancelledException {
+
+        Log_OC.v(TAG, "Starting content synchronization... ");

         RemoteOperationResult contentsResult = null;
         for (SyncOperation op: filesToSyncContents) {
         RemoteOperationResult contentsResult = null;
         for (SyncOperation op: filesToSyncContents) {

+            if (mCancellationRequested.get()) {
+                throw new OperationCancelledException();
+            }

             contentsResult = op.execute(getStorageManager(), mContext);
             if (!contentsResult.isSuccess()) {
                 if (contentsResult.getCode() == ResultCode.SYNC_CONFLICT) {
             contentsResult = op.execute(getStorageManager(), mContext);
             if (!contentsResult.isSuccess()) {
                 if (contentsResult.getCode() == ResultCode.SYNC_CONFLICT) {


@@ -448,47 +477,11 @@ public class SynchronizeFolderOperation extends SyncOperation {
         }
     }
 
         }
     }
 

-
-    private void walkSubfolders(OwnCloudClient client) {
-        RemoteOperationResult contentsResult = null;
-        for (SyncOperation op: mFoldersToWalkDown) {
-            contentsResult = op.execute(client, getStorageManager());   // to watch out: possibly deep recursion
-            if (!contentsResult.isSuccess()) {
-                // TODO - some kind of error count, and use it with notifications
-                if (contentsResult.getException() != null) {
-                    Log_OC.e(TAG, "Non blocking exception : "
-                            +  contentsResult.getLogMessage(), contentsResult.getException());
-                } else {
-                    Log_OC.e(TAG, "Non blocking error : " + contentsResult.getLogMessage());
-                }
-            }   // won't let these fails break the synchronization process
-        }
-    }
-
-
-    /**
-     * Creates and populates a new {@link com.owncloud.android.datamodel.OCFile} object with the data read from the server.
-     *
-     * @param remote    remote file read from the server (remote file or folder).
-     * @return          New OCFile instance representing the remote resource described by we.
-     */
-    private OCFile fillOCFile(RemoteFile remote) {
-        OCFile file = new OCFile(remote.getRemotePath());
-        file.setCreationTimestamp(remote.getCreationTimestamp());
-        file.setFileLength(remote.getLength());
-        file.setMimetype(remote.getMimeType());
-        file.setModificationTimestamp(remote.getModifiedTimestamp());
-        file.setEtag(remote.getEtag());
-        file.setPermissions(remote.getPermissions());
-        file.setRemoteId(remote.getRemoteId());
-        return file;
-    }
-
-
+    

     /**
      * Scans the default location for saving local copies of files searching for
     /**
      * Scans the default location for saving local copies of files searching for

-     * a 'lost' file with the same full name as the {@link com.owncloud.android.datamodel.OCFile} received as
-     * parameter.
+     * a 'lost' file with the same full name as the {@link com.owncloud.android.datamodel.OCFile}
+     * received as parameter.

      *  
      * @param file      File to associate a possible 'lost' local file.
      */
      *  
      * @param file      File to associate a possible 'lost' local file.
      */


@@ -506,7 +499,27 @@ public class SynchronizeFolderOperation extends SyncOperation {
     /**
      * Cancel operation
      */
     /**
      * Cancel operation
      */

-    public void cancel(){
+    public void cancel() {

         mCancellationRequested.set(true);
     }
         mCancellationRequested.set(true);
     }

+
+    public String getFolderPath() {
+        String path = mLocalFolder.getStoragePath();
+        if (path != null && path.length() > 0) {
+            return path;
+        }
+        return FileStorageUtils.getDefaultSavePathFor(mAccount.name, mLocalFolder);
+    }
+
+    private void startSyncFolderOperation(String path){
+        Intent intent = new Intent(mContext, OperationsService.class);
+        intent.setAction(OperationsService.ACTION_SYNC_FOLDER);
+        intent.putExtra(OperationsService.EXTRA_ACCOUNT, mAccount);
+        intent.putExtra(OperationsService.EXTRA_REMOTE_PATH, path);
+        mContext.startService(intent);
+    }
+
+    public String getRemotePath() {
+        return mRemotePath;
+    }

 }
 }