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/*******************************************************************************
* Copyright (c) 2011 Wind River Systems, Inc. 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:
* Wind River Systems - initial API and implementation
*******************************************************************************/
package org.eclipse.tcf.te.tcf.filesystem.core.internal.operations;
import java.lang.reflect.InvocationTargetException;
import java.util.List;
import java.util.concurrent.atomic.AtomicReference;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.ISafeRunnable;
import org.eclipse.core.runtime.SafeRunner;
import org.eclipse.osgi.util.NLS;
import org.eclipse.tcf.protocol.IChannel;
import org.eclipse.tcf.protocol.IToken;
import org.eclipse.tcf.services.IFileSystem;
import org.eclipse.tcf.services.IFileSystem.DoneCopy;
import org.eclipse.tcf.services.IFileSystem.FileSystemException;
import org.eclipse.tcf.te.tcf.core.Tcf;
import org.eclipse.tcf.te.tcf.filesystem.core.interfaces.IConfirmCallback;
import org.eclipse.tcf.te.tcf.filesystem.core.internal.exceptions.TCFException;
import org.eclipse.tcf.te.tcf.filesystem.core.internal.exceptions.TCFFileSystemException;
import org.eclipse.tcf.te.tcf.filesystem.core.model.FSTreeNode;
import org.eclipse.tcf.te.tcf.filesystem.core.nls.Messages;
/**
* The operation class that copies selected FSTreeNodes to a specify destination folder.
*/
public class OpCopy extends Operation {
// The nodes to be copied.
List<FSTreeNode> nodes;
// The destination folder to be copied to.
FSTreeNode dest;
// The callback invoked to confirm overwriting when there're files with same names.
IConfirmCallback confirmCallback;
// If it is required to copy the permissions.
boolean cpPermission;
// If it is required to copy the ownership.
boolean cpOwnership;
/**
* Create a copy operation using the specified nodes and destination folder.
*
* @param nodes The file/folder nodes to be copied.
* @param dest The destination folder to be copied to.
*/
public OpCopy(List<FSTreeNode> nodes, FSTreeNode dest) {
this(nodes, dest, false, false, null);
}
/**
* Create a copy operation using the specified nodes and destination folder,
* using the specified flags of copying permissions and ownership and a callback
* to confirm to overwrite existing files.
*
* @param nodes The file/folder nodes to be copied.
* @param dest The destination folder to be copied to.
*/
public OpCopy(List<FSTreeNode> nodes, FSTreeNode dest, boolean cpPerm, boolean cpOwn, IConfirmCallback confirmCallback) {
super();
this.nodes = getAncestors(nodes);
this.dest = dest;
this.cpOwnership = cpOwn;
this.cpPermission = cpPerm;
this.confirmCallback = confirmCallback;
}
/*
* (non-Javadoc)
* @see org.eclipse.tcf.te.tcf.filesystem.core.internal.operations.Operation#run(org.eclipse.core.runtime.IProgressMonitor)
*/
@Override
public void run(IProgressMonitor monitor) throws InvocationTargetException, InterruptedException {
super.run(monitor);
FSTreeNode head = nodes.get(0);
IChannel channel = null;
try {
channel = openChannel(head.peerNode.getPeer());
if (channel != null) {
IFileSystem service = getBlockingFileSystem(channel);
if (service != null) {
for (FSTreeNode node : nodes) {
// Iterate the nodes and copy each of them to the destination folder.
copyNode(service, node, dest);
}
}
else {
String message = NLS.bind(Messages.Operation_NoFileSystemError, head.peerNode.getPeerId());
throw new TCFFileSystemException(message);
}
}
}
catch (TCFException e) {
throw new InvocationTargetException(e, e.getMessage());
}
finally {
if (channel != null) Tcf.getChannelManager().closeChannel(channel);
monitor.done();
}
}
/**
* Copy the file/folder represented by the specified node to the destination folder.
*
* @param service The file system service to do the remote copying.
* @param node The file/folder node to be copied.
* @param dest The destination folder.
* @throws TCFFileSystemException The exception thrown during copying
* @throws InterruptedException The exception thrown when the operation is canceled.
*/
void copyNode(IFileSystem service, FSTreeNode node, FSTreeNode dest) throws TCFFileSystemException, InterruptedException {
if (node.isFile()) {
copyFile(service, node, dest);
}
else if (node.isDirectory()) {
copyFolder(service, node, dest);
}
}
/**
* Copy the folder represented by the specified node to the destination folder.
*
* @param service The file system service to do the remote copying.
* @param node The folder node to be copied.
* @param dest The destination folder.
* @throws TCFFileSystemException The exception thrown during copying
* @throws InterruptedException The exception thrown when the operation is canceled.
*/
private void copyFolder(IFileSystem service, FSTreeNode node, FSTreeNode dest) throws TCFFileSystemException, InterruptedException {
if (monitor.isCanceled()) throw new InterruptedException();
FSTreeNode copy = findChild(service, dest, node.name);
if (copy == null) {
// If no existing directory with the same name, create it.
copy = (FSTreeNode) node.clone();
addChild(service, dest, copy);
mkdir(service, copy);
copyChildren(service, node, copy);
}
else if (node.equals(copy)) {
copy = createCopyDestination(service, node, dest);
mkdir(service, copy);
copyChildren(service, node, copy);
}
else if (confirmReplace(node, confirmCallback)) {
copyChildren(service, node, copy);
}
monitor.worked(1);
}
/**
* Copy the children of the node to the destination folder.
*
* @param service The file system service to do the remote copying.
* @param node The folder node to be copied.
* @param dest The destination folder.
* @throws TCFFileSystemException The exception thrown during copying
* @throws InterruptedException The exception thrown when the operation is canceled.
*/
private void copyChildren(IFileSystem service, FSTreeNode node, FSTreeNode dest) throws TCFFileSystemException, InterruptedException {
List<FSTreeNode> children = getChildren(node, service);
if (!children.isEmpty()) {
for (FSTreeNode child : children) {
// Iterate and copy its children nodes.
copyNode(service, child, dest);
}
}
}
/**
* Copy the file represented by the specified node to the destination folder.
*
* @param service The file system service to do the remote copying.
* @param node The file node to be copied.
* @param dest The destination folder.
* @throws TCFFileSystemException The exception thrown during copying
* @throws InterruptedException The exception thrown when the operation is canceled.
*/
private void copyFile(IFileSystem service, FSTreeNode node, FSTreeNode dest) throws TCFFileSystemException, InterruptedException {
if (monitor.isCanceled()) throw new InterruptedException();
monitor.subTask(NLS.bind(Messages.OpCopy_Copying, node.name));
// Create the copy target file
final FSTreeNode copy = createCopyDestination(service, node, dest);
String src_path = node.getLocation(true);
String dst_path = copy.getLocation(true);
final TCFFileSystemException[] errors = new TCFFileSystemException[1];
// Get the options of copy permission and ownership.
service.copy(src_path, dst_path, cpPermission, cpOwnership, new DoneCopy() {
@Override
public void doneCopy(IToken token, FileSystemException error) {
if (error != null) {
String message = NLS.bind(Messages.OpCopy_CannotCopyFile, copy.name, error);
errors[0] = new TCFFileSystemException(message, error);
}
}
});
if (errors[0] != null) {
removeChild(service, dest, copy);
throw errors[0];
}
monitor.worked(1);
}
/*
* (non-Javadoc)
* @see org.eclipse.tcf.te.tcf.filesystem.core.interfaces.IOperation#getName()
*/
@Override
public String getName() {
return Messages.OpCopy_CopyingFile;
}
/*
* (non-Javadoc)
* @see org.eclipse.tcf.te.tcf.filesystem.core.interfaces.IOperation#getTotalWork()
*/
@Override
public int getTotalWork() {
if(nodes != null && !nodes.isEmpty()) {
final AtomicReference<Integer> ref = new AtomicReference<Integer>();
SafeRunner.run(new ISafeRunnable(){
@Override
public void handleException(Throwable exception) {
// Ignore on purpose.
}
@Override
public void run() throws Exception {
FSTreeNode head = nodes.get(0);
IChannel channel = null;
try {
channel = openChannel(head.peerNode.getPeer());
if (channel != null) {
IFileSystem service = getBlockingFileSystem(channel);
if (service != null) {
ref.set(Integer.valueOf(count(service, nodes)));
}
else {
String message = NLS.bind(Messages.Operation_NoFileSystemError, head.peerNode.getPeerId());
throw new TCFFileSystemException(message);
}
}
}
finally {
if (channel != null) Tcf.getChannelManager().closeChannel(channel);
}
}});
Integer value = ref.get();
return value == null ? IProgressMonitor.UNKNOWN : value.intValue();
}
return IProgressMonitor.UNKNOWN;
}
}
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