Merge branch 'develop' into refresh_folder_contents_when_browsed_into
[pub/Android/ownCloud.git] / src / com / owncloud / android / operations / SynchronizeFolderOperation.java
index 67c7389..68d539c 100644 (file)
@@ -23,6 +23,7 @@ import java.io.FileOutputStream;
 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;
@@ -35,7 +36,6 @@ import org.apache.jackrabbit.webdav.client.methods.PropFindMethod;
 
 import android.accounts.Account;
 import android.content.Context;
-
 import com.owncloud.android.Log_OC;
 import com.owncloud.android.datamodel.DataStorageManager;
 import com.owncloud.android.datamodel.OCFile;
@@ -64,7 +64,7 @@ public class SynchronizeFolderOperation extends RemoteOperation {
     
     /** Id of the folder to synchronize in the local database */
     private long mParentId;
-    
+
     /** Access to the local database */
     private DataStorageManager mStorageManager;
     
@@ -121,87 +121,116 @@ public class SynchronizeFolderOperation extends RemoteOperation {
         return mChildren;
     }
     
-    
+    public String getRemotePath() {
+        return mRemotePath;
+    }
+
+    public long getParentId() {
+        return mParentId;
+    }
+
     @Override
     protected RemoteOperationResult run(WebdavClient client) {
         RemoteOperationResult result = null;
         mFailsInFavouritesFound = 0;
         mConflictsFound = 0;
         mForgottenLocalFiles.clear();
-        
+        boolean fileChanged = false;
+
         // code before in FileSyncAdapter.fetchData
         PropFindMethod query = null;
         try {
             Log_OC.d(TAG, "Synchronizing " + mAccount.name + ", fetching files in " + mRemotePath);
-            
+
             // remote request 
             query = new PropFindMethod(client.getBaseUri() + WebdavUtils.encodePath(mRemotePath));
             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);
-                    mStorageManager.saveFile(parent);
-                    mParentId = parent.getFileId();
+                    // Properties of local folder
+                    OCFile localParent = mStorageManager.getFileById(1);
+                    if (parent.getEtag() != localParent.getEtag()) {
+                        mStorageManager.saveFile(parent);
+                        mParentId = parent.getFileId();
+                    }
                 }
-                
+
+
                 // 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
+                    fileChanged = false;
                     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());
-                    }
+                        if (!file.getEtag().equalsIgnoreCase(oldFile.getEtag())) {
+                            fileChanged = true; 
+                        }                        
+                    } else
+                        fileChanged= true;
 
-                    /// 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());
+                    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);
                     }
-                    
-                    /// 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);
                 }
-                                
+
                 // 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;
+                //SynchronizeFileOperation op = null;
                 RemoteOperationResult contentsResult = null;
-                for (int i=0; i < filesToSyncContents.size(); i++) {
-                    op = filesToSyncContents.get(i);
+                for (SynchronizeFileOperation op: filesToSyncContents) {//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) {
@@ -217,40 +246,46 @@ public class SynchronizeFolderOperation extends RemoteOperation {
                     }   // won't let these fails break the synchronization process
                 }
 
-                    
+
                 // removal of obsolete files
                 mChildren = mStorageManager.getDirectoryContent(mStorageManager.getFileById(mParentId));
-                OCFile file;
+                //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++;
+                for (OCFile fileChild: mChildren) {
+                    //file = mChildren.get(i);
+                    //if (file.getLastSyncDateForProperties() != mCurrentSyncTime) {
+                    if (!filesOnServer.contains(fileChild.getRemotePath())) {
+                        Log_OC.d(TAG, "removing file: " + fileChild.getFileName());
+                        mStorageManager.removeFile(fileChild, (fileChild.isDown() && fileChild.getStoragePath().startsWith(currentSavePath)));
+                        mChildren.remove(fileChild); //.remove(i);
                     }
+                    //                    } else {
+                    //                        i++;
+                    //                    }
                 }
-                
+                // }
+                //}
+
             } else {
                 client.exhaustResponse(query.getResponseBodyAsStream());
             }
-            
+
             // prepare result object
-            if (isMultiStatus(status)) {
+            if (!fileChanged) {
+                result = new RemoteOperationResult(ResultCode.OK_NO_CHANGES_ON_DIR);
+
+            } else if (isMultiStatus(status)) {
                 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(false, status, query.getResponseHeaders());
             }
-            
-            
-            
+            Log_OC.i(TAG, "Synchronizing " + mAccount.name + ", folder " + mRemotePath + ": " + result.getLogMessage());
+
         } catch (Exception e) {
             result = new RemoteOperationResult(e);
             
@@ -268,10 +303,10 @@ public class SynchronizeFolderOperation extends RemoteOperation {
                 }
             }
         }
-        
+
         return result;
     }
-    
+
 
     public boolean isMultiStatus(int status) {
         return (status == HttpStatus.SC_MULTI_STATUS); 
@@ -291,6 +326,7 @@ public class SynchronizeFolderOperation extends RemoteOperation {
         file.setMimetype(we.contentType());
         file.setModificationTimestamp(we.modifiedTimestamp());
         file.setParentId(mParentId);
+        file.setEtag(we.etag());
         return file;
     }
     
@@ -301,7 +337,7 @@ 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}
-     * 
+     *) 
      * @param file      File to check and fix.
      */
     private void checkAndFixForeignStoragePath(OCFile file) {