New class ErrorMessageAdapter to choose proper error message to show to the user depending on the results of operations

src/com/owncloud/android/files/services/FileDownloader.java

@@ -44,6 +44,7 @@ import com.owncloud.android.ui.activity.FileActivity;
 import com.owncloud.android.ui.activity.FileDisplayActivity;
 import com.owncloud.android.ui.preview.PreviewImageActivity;
 import com.owncloud.android.ui.preview.PreviewImageFragment;
+import com.owncloud.android.utils.ErrorMessageAdapter;
 import com.owncloud.android.utils.Log_OC;
 import com.owncloud.android.utils.NotificationBuilderWithProgressBar;
 
@@ -461,9 +462,9 @@ public class FileDownloader extends Service implements OnDatatransferProgressLis
     private void notifyDownloadResult(DownloadFileOperation download, RemoteOperationResult downloadResult) {
         mNotificationManager.cancel(R.string.downloader_download_in_progress_ticker);
         if (!downloadResult.isCancelled()) {
-            int tickerId = (downloadResult.isSuccess()) ? R.string.downloader_download_succeeded_ticker : R.string.downloader_download_failed_ticker;
-            int contentId = (downloadResult.isSuccess()) ? R.string.downloader_download_succeeded_content : R.string.downloader_download_failed_content;
-
+            int tickerId = (downloadResult.isSuccess()) ? R.string.downloader_download_succeeded_ticker : 
+                R.string.downloader_download_failed_ticker;
+            
             boolean needsToUpdateCredentials = (downloadResult.getCode() == ResultCode.UNAUTHORIZED ||
                                                   (downloadResult.isIdPRedirection()
                                                         && mDownloadClient.getCredentials() == null));
@@ -488,9 +489,8 @@ public class FileDownloader extends Service implements OnDatatransferProgressLis
                 updateAccountCredentials.addFlags(Intent.FLAG_FROM_BACKGROUND);
                 mNotificationBuilder
                     .setContentIntent(PendingIntent.getActivity(
-                        this, (int) System.currentTimeMillis(), updateAccountCredentials, PendingIntent.FLAG_ONE_SHOT
-                    ))
-                    .setContentText(String.format(getString(contentId), new File(download.getSavePath()).getName()));
+                        this, (int) System.currentTimeMillis(), updateAccountCredentials, PendingIntent.FLAG_ONE_SHOT));
+                
                 mDownloadClient = null;   // grant that future retries on the same account will get the fresh credentials
                 
             } else {
@@ -511,10 +511,11 @@ public class FileDownloader extends Service implements OnDatatransferProgressLis
                 }
                 mNotificationBuilder
                     .setContentIntent(PendingIntent.getActivity(
-                        this, (int) System.currentTimeMillis(), showDetailsIntent, 0
-                    ))
-                    .setContentText(String.format(getString(contentId), new File(download.getSavePath()).getName()));  
+                        this, (int) System.currentTimeMillis(), showDetailsIntent, 0));
             }
+            
+            mNotificationBuilder.setContentText(ErrorMessageAdapter.getErrorCauseMessage(downloadResult, download, getResources()));
+            
             mNotificationManager.notify(tickerId, mNotificationBuilder.build());
         }
     }

src/com/owncloud/android/files/services/FileUploader.java

@@ -54,6 +54,7 @@ import com.owncloud.android.ui.activity.FileDisplayActivity;
 import com.owncloud.android.ui.activity.InstantUploadActivity;
 import com.owncloud.android.ui.preview.PreviewImageActivity;
 import com.owncloud.android.ui.preview.PreviewImageFragment;
+import com.owncloud.android.utils.ErrorMessageAdapter;
 import com.owncloud.android.utils.Log_OC;
 import com.owncloud.android.utils.NotificationBuilderWithProgressBar;
 
@@ -752,10 +753,7 @@ public class FileUploader extends Service implements OnDatatransferProgressListe
                 ))
                 .setTicker(getString(R.string.uploader_upload_succeeded_ticker))
                 .setContentTitle(getString(R.string.uploader_upload_succeeded_ticker))
-                .setContentText(
-                        String.format(getString(R.string.uploader_upload_succeeded_content_single),
-                        upload.getFileName())
-                );
+                .setContentText(ErrorMessageAdapter.getErrorCauseMessage(uploadResult, upload, getResources()));
 
             mNotificationManager.notify(R.string.uploader_upload_in_progress_ticker, mNotificationBuilder.build());  // NOT
                                                                                                                      // AN
@@ -785,6 +783,7 @@ public class FileUploader extends Service implements OnDatatransferProgressListe
             .setContentTitle(getString(tickerId))
             .setAutoCancel(true);
             
+            content =  ErrorMessageAdapter.getErrorCauseMessage(uploadResult, upload, getResources());
             
             if (needsToUpdateCredentials) {
                 // let the user update credentials with one click
@@ -797,23 +796,10 @@ public class FileUploader extends Service implements OnDatatransferProgressListe
                 errorBuilder.setContentIntent(PendingIntent.getActivity(
                     this, (int) System.currentTimeMillis(), updateAccountCredentials, PendingIntent.FLAG_ONE_SHOT
                 ));
-                content =  String.format(getString(R.string.uploader_upload_failed_content_single), upload.getFileName());
+                
                 mUploadClient = null;   // grant that future retries on the same account will get the fresh credentials
             } else {
                 // TODO put something smart in the contentIntent below
-            
-                if (uploadResult.getCode() == ResultCode.LOCAL_STORAGE_FULL
-                        || uploadResult.getCode() == ResultCode.LOCAL_STORAGE_NOT_COPIED) {
-                    // TODO we need a class to provide error messages for the users
-                    // from a RemoteOperationResult and a RemoteOperation
-                    content = String.format(getString(R.string.error__upload__local_file_not_copied), upload.getFileName(),
-                            getString(R.string.app_name));
-                } else if (uploadResult.getCode() == ResultCode.QUOTA_EXCEEDED) {
-                    content = getString(R.string.failed_upload_quota_exceeded_text);
-                } else {
-                    content = String
-                            .format(getString(R.string.uploader_upload_failed_content_single), upload.getFileName());
-                }
 
                 // we add only for instant-uploads the InstantUploadActivity and the
                 // db entry

src/com/owncloud/android/utils/ErrorMessageAdapter.java

@@ -0,0 +1,80 @@
+/* ownCloud Android client application
+ *   Copyright (C) 2014 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,
+ *   as published by the Free Software Foundation.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+
+package com.owncloud.android.utils;
+
+import java.io.File;
+
+import android.content.res.Resources;
+
+import com.owncloud.android.R;
+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.operations.DownloadFileOperation;
+import com.owncloud.android.operations.UploadFileOperation;
+
+/**
+ * Class to choose proper error messages to show to the user depending on the results of operations, always following the same policy
+ * 
+ * @author masensio
+ *
+ */
+
+public class ErrorMessageAdapter {
+
+    public ErrorMessageAdapter() {
+        
+    }
+
+    public static String getErrorCauseMessage(RemoteOperationResult result, RemoteOperation operation, Resources res) {
+        
+        String message = null;
+        
+        if (operation instanceof UploadFileOperation) {
+            
+            if (result.isSuccess()) {
+                message = String.format(res.getString(R.string.uploader_upload_succeeded_content_single), 
+                        ((UploadFileOperation) operation).getFileName());
+            } else {
+                if (result.getCode() == ResultCode.LOCAL_STORAGE_FULL
+                        || result.getCode() == ResultCode.LOCAL_STORAGE_NOT_COPIED) {
+                    message = String.format(res.getString(R.string.error__upload__local_file_not_copied), 
+                            ((UploadFileOperation) operation).getFileName());
+                } else if (result.getCode() == ResultCode.QUOTA_EXCEEDED) {
+                    message = res.getString(R.string.failed_upload_quota_exceeded_text);
+                } else {
+                    message = String.format(res.getString(R.string.uploader_upload_failed_content_single), 
+                            ((UploadFileOperation) operation).getFileName());
+                }
+            }
+            
+        } else if (operation instanceof DownloadFileOperation) {
+            
+            if (result.isSuccess()) {
+                message = String.format(res.getString(R.string.downloader_download_succeeded_content), 
+                        new File(((DownloadFileOperation) operation).getSavePath()).getName());
+            } else {
+                message = String.format(res.getString(R.string.downloader_download_failed_content), 
+                        new File(((DownloadFileOperation) operation).getSavePath()).getName());
+            }
+        }
+        
+        return message;
+    }
+}