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+/* ownCloud Android client application
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+ * Copyright (C) 2012-2014 ownCloud Inc.
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+ *
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+ * This program is free software: you can redistribute it and/or modify
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+ * it under the terms of the GNU General Public License version 2,
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+ * as published by the Free Software Foundation.
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+ *
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+ * This program is distributed in the hope that it will be useful,
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+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+ * GNU General Public License for more details.
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+ *
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+ * You should have received a copy of the GNU General Public License
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+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
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+ *
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+ */
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+
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+package com.owncloud.android.operations;
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+
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+import java.io.File;
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+import java.io.IOException;
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+
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+import com.owncloud.android.datamodel.OCFile;
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+import com.owncloud.android.lib.common.OwnCloudClient;
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+import com.owncloud.android.lib.common.operations.RemoteOperationResult;
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+import com.owncloud.android.lib.common.operations.RemoteOperationResult.ResultCode;
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+import com.owncloud.android.lib.resources.files.RenameRemoteFileOperation;
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+import com.owncloud.android.operations.common.SyncOperation;
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+import com.owncloud.android.utils.FileStorageUtils;
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+import com.owncloud.android.utils.Log_OC;
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+
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+import android.accounts.Account;
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+
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+
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+/**
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+ * Operation mmoving an {@link OCFile} to a different folder.
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+ *
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+ * @author David A. Velasco
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+ */
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+public class MoveFileOperation extends SyncOperation {
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+
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+ private static final String TAG = MoveFileOperation.class.getSimpleName();
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+
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+ private String mPath;
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+ private Account mAccount;
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+ private String mNewParentPath;
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+ private OCFile mFile;
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+
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+
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+
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+ /**
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+ * Constructor
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+ *
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+ * @param path Remote path of the {@link OCFile} to move.
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+ * @param newParentPath Path to the folder where the file will be moved into.
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+ * @param account OwnCloud account containing both the file and the target folder
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+ */
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+ public MoveFileOperation(String path, String newParentPath, Account account) {
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+ mPath = path;
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+ mNewParentPath = newParentPath;
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+ mAccount = account;
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+ mFile = null;
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+ }
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+
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+ public OCFile getFile() {
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+ return mFile;
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+ }
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+
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+
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+ /**
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+ * Performs the operation.
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+ *
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+ * @param client Client object to communicate with the remote ownCloud server.
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+ */
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+ @Override
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+ protected RemoteOperationResult run(OwnCloudClient client) {
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+ RemoteOperationResult result = null;
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+
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+ mFile = getStorageManager().getFileByPath(mPath);
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+
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+ // check if the new name is valid in the local file system
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+ try {
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+ String parentPath = (new File(mFile.getRemotePath())).getParent();
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+ parentPath = (parentPath.endsWith(OCFile.PATH_SEPARATOR))
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+ ? parentPath
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+ : parentPath + OCFile.PATH_SEPARATOR;
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+
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+ String mNewPath = mNewParentPath + mFile.getFileName();
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+ if (mFile.isFolder() && !mNewPath.endsWith(OCFile.PATH_SEPARATOR)) {
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+ mNewPath += OCFile.PATH_SEPARATOR;
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+ }
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+
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+ // check local overwrite
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+ if (getStorageManager().getFileByPath(mPath) != null) {
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+ return new RemoteOperationResult(ResultCode.INVALID_OVERWRITE);
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+ }
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+
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+ MoveRemoteFileOperation operation = new MoveRemoteFileOperation(
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+ mFile.getRemotePath(),
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+ mNewPath,
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+ mFile.isFolder()
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+ );
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+ result = operation.execute(client);
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+
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+ if (result.isSuccess()) {
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+ if (mFile.isFolder()) {
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+ saveLocalDirectory();
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+
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+ } else {
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+ saveLocalFile();
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+ }
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+ }
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+
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+ } catch (IOException e) {
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+ Log_OC.e(TAG, "Move " + mFile.getRemotePath() + " to " +
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+ (mNewParentPath==null) + ": " +
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+ ((result!= null) ? result.getLogMessage() : ""), e);
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+ }
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+
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+ return result;
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+ }
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+
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+
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+ private void saveLocalDirectory() {
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+ getStorageManager().moveFolder(mFile, mNewParentPath);
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+ String localPath = FileStorageUtils.getDefaultSavePathFor(mAccount.name, mFile);
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+ File localDir = new File(localPath);
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+ if (localDir.exists()) {
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+ localDir.renameTo(new File(FileStorageUtils.getSavePath(mAccount.name) + mNewParentPath));
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+ // TODO - if renameTo fails, children files that are already down will result unlinked
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+ }
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+ }
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+
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+ private void saveLocalFile() {
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+ mFile.setFileName(mNewName);
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+
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+ // try to rename the local copy of the file
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+ if (mFile.isDown()) {
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+ File f = new File(mFile.getStoragePath());
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+ String parentStoragePath = f.getParent();
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+ if (!parentStoragePath.endsWith(File.separator))
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+ parentStoragePath += File.separator;
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+ if (f.renameTo(new File(parentStoragePath + mNewName))) {
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+ mFile.setStoragePath(parentStoragePath + mNewName);
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+ }
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+ // else - NOTHING: the link to the local file is kept although the local name can't be updated
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+ // TODO - study conditions when this could be a problem
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+ }
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+
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+ getStorageManager().saveFile(mFile);
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+ }
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+
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+ /**
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+ * Checks if the new name to set is valid in the file system
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+ *
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+ * The only way to be sure is trying to create a file with that name. It's made in the temporal directory
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+ * for downloads, out of any account, and then removed.
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+ *
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+ * IMPORTANT: The test must be made in the same file system where files are download. The internal storage
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+ * could be formatted with a different file system.
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+ *
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+ * TODO move this method, and maybe FileDownload.get***Path(), to a class with utilities specific for the interactions with the file system
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+ *
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+ * @return 'True' if a temporal file named with the name to set could be created in the file system where
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+ * local files are stored.
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+ * @throws IOException When the temporal folder can not be created.
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+ */
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+ private boolean isValidNewName() throws IOException {
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+ // check tricky names
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+ if (mNewName == null || mNewName.length() <= 0 || mNewName.contains(File.separator) || mNewName.contains("%")) {
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+ return false;
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+ }
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+ // create a test file
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+ String tmpFolderName = FileStorageUtils.getTemporalPath("");
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+ File testFile = new File(tmpFolderName + mNewName);
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+ File tmpFolder = testFile.getParentFile();
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+ tmpFolder.mkdirs();
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+ if (!tmpFolder.isDirectory()) {
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+ throw new IOException("Unexpected error: temporal directory could not be created");
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+ }
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+ try {
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+ testFile.createNewFile(); // return value is ignored; it could be 'false' because the file already existed, that doesn't invalidate the name
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+ } catch (IOException e) {
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+ Log_OC.i(TAG, "Test for validity of name " + mNewName + " in the file system failed");
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+ return false;
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+ }
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+ boolean result = (testFile.exists() && testFile.isFile());
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+
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+ // cleaning ; result is ignored, since there is not much we could do in case of failure, but repeat and repeat...
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+ testFile.delete();
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+
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+ return result;
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+ }
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+
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+}
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David A. Velasco