| /****************************************************************************** |
| * Copyright (c) 2006, 2010 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - Initial Implementation |
| * Roland Schulz, University of Tennessee |
| * |
| *****************************************************************************/ |
| package org.eclipse.ptp.remotetools.internal.ssh; |
| |
| import java.util.NoSuchElementException; |
| |
| import org.eclipse.ptp.remotetools.core.IRemoteFileEnumeration; |
| import org.eclipse.ptp.remotetools.core.IRemoteItem; |
| import org.eclipse.ptp.remotetools.exception.CancelException; |
| import org.eclipse.ptp.remotetools.exception.RemoteConnectionException; |
| import org.eclipse.ptp.remotetools.exception.RemoteOperationException; |
| |
| |
| /** |
| * Enumeration of files on the remote host. |
| * The enumeration stops when: |
| * <ul> |
| * <li>All files have been enumerated. |
| * <li>The execution manager gets canceled. |
| * <li>The connection fails |
| * </ul> |
| * If an element fails to be retrieved, an exception is returned instead of the element. |
| * |
| * Instead of {@link #nextElement()}, one may call {@link #nextRemoteItem()}. |
| * |
| * @author Daniel Ferber |
| */ |
| public class RemoteFileEnumeration implements IRemoteFileEnumeration { |
| |
| private IRemoteItem[] items = null; |
| private int currentItem = 0; |
| |
| /** |
| * Enumerates all files on a given root directory. |
| * |
| * @param fileTools |
| * @param directoryPath The remote directory. Must be a valid existing directory. |
| * @throws RemoteOperationException |
| * @throws RemoteConnectionException The root directory does not exist or is not a directory. |
| * @throws CancelException |
| */ |
| public RemoteFileEnumeration(FileTools fileTools, String directoryPath) throws RemoteOperationException, RemoteConnectionException, CancelException { |
| // don't need, listItems(root) will test |
| // fileTools.test(); |
| |
| this.items = fileTools.listItems(directoryPath, null); |
| this.currentItem = 0; |
| } |
| |
| /* (non-Javadoc) |
| * @see java.util.Enumeration#hasMoreElements() |
| */ |
| public boolean hasMoreElements() { |
| return currentItem < items.length; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.ptp.remotetools.core.IRemoteFileEnumeration#hasMoreExceptions() |
| */ |
| public boolean hasMoreExceptions() { |
| return false; |
| } |
| |
| /* (non-Javadoc) |
| * @see java.util.Enumeration#nextElement() |
| */ |
| public IRemoteItem nextElement() { |
| return nextElementAsItem(); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.ptp.remotetools.core.IRemoteFileEnumeration#nextElementAsItem() |
| */ |
| public IRemoteItem nextElementAsItem() { |
| if (currentItem >= items.length) { |
| throw new NoSuchElementException(); |
| } |
| return items[currentItem++]; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.ptp.remotetools.core.IRemoteFileEnumeration#nextException() |
| */ |
| public Exception nextException() { |
| return null; // always null |
| } |
| } |
| |