Java tutorial
/* 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.digitalarx.android.utils; import java.io.File; import java.net.SocketTimeoutException; import org.apache.commons.httpclient.ConnectTimeoutException; import android.content.res.Resources; import com.digitalarx.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.digitalarx.android.operations.CreateFolderOperation; import com.digitalarx.android.operations.CreateShareOperation; import com.digitalarx.android.operations.DownloadFileOperation; import com.digitalarx.android.operations.RemoveFileOperation; import com.digitalarx.android.operations.RenameFileOperation; import com.digitalarx.android.operations.SynchronizeFileOperation; import com.digitalarx.android.operations.UnshareLinkOperation; import com.digitalarx.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(), res.getString(R.string.app_name)); } 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()); } } else if (operation instanceof RemoveFileOperation) { if (result.isSuccess()) { message = res.getString(R.string.remove_success_msg); } else { if (isNetworkError(result.getCode())) { message = getErrorMessage(result, res); } else { message = res.getString(R.string.remove_fail_msg); } } } else if (operation instanceof RenameFileOperation) { if (result.getCode().equals(ResultCode.INVALID_LOCAL_FILE_NAME)) { message = res.getString(R.string.rename_local_fail_msg); } if (result.getCode().equals(ResultCode.INVALID_CHARACTER_IN_NAME)) { message = res.getString(R.string.filename_forbidden_characters); } else if (isNetworkError(result.getCode())) { message = getErrorMessage(result, res); } else { message = res.getString(R.string.rename_server_fail_msg); } } else if (operation instanceof SynchronizeFileOperation) { if (!((SynchronizeFileOperation) operation).transferWasRequested()) { message = res.getString(R.string.sync_file_nothing_to_do_msg); } } else if (operation instanceof CreateFolderOperation) { if (result.getCode() == ResultCode.INVALID_CHARACTER_IN_NAME) { message = res.getString(R.string.filename_forbidden_characters); } else if (isNetworkError(result.getCode())) { message = getErrorMessage(result, res); } else { message = res.getString(R.string.create_dir_fail_msg); } } else if (operation instanceof CreateShareOperation) { if (result.getCode() == ResultCode.SHARE_NOT_FOUND) { // Error --> SHARE_NOT_FOUND message = res.getString(R.string.share_link_file_no_exist); } else if (isNetworkError(result.getCode())) { message = getErrorMessage(result, res); } else { // Generic error // Show a Message, operation finished without success message = res.getString(R.string.share_link_file_error); } } else if (operation instanceof UnshareLinkOperation) { if (result.getCode() == ResultCode.SHARE_NOT_FOUND) { // Error --> SHARE_NOT_FOUND message = res.getString(R.string.unshare_link_file_no_exist); } else if (isNetworkError(result.getCode())) { message = getErrorMessage(result, res); } else { // Generic error // Show a Message, operation finished without success message = res.getString(R.string.unshare_link_file_error); } } return message; } private static String getErrorMessage(RemoteOperationResult result, Resources res) { String message = null; if (!result.isSuccess()) { if (result.getCode() == ResultCode.WRONG_CONNECTION) { message = res.getString(R.string.network_error_socket_exception); } else if (result.getCode() == ResultCode.TIMEOUT) { message = res.getString(R.string.network_error_socket_exception); if (result.getException() instanceof SocketTimeoutException) { message = res.getString(R.string.network_error_socket_timeout_exception); } else if (result.getException() instanceof ConnectTimeoutException) { message = res.getString(R.string.network_error_connect_timeout_exception); } } else if (result.getCode() == ResultCode.HOST_NOT_AVAILABLE) { message = res.getString(R.string.network_host_not_available); } } return message; } private static boolean isNetworkError(RemoteOperationResult.ResultCode code) { if (code == ResultCode.WRONG_CONNECTION || code == ResultCode.TIMEOUT || code == ResultCode.HOST_NOT_AVAILABLE) { return true; } else return false; } }