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/*******************************************************************************
* Copyright (c) 2011, 2014 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 org.eclipse.core.runtime.Assert;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.osgi.util.NLS;
import org.eclipse.tcf.protocol.IChannel;
import org.eclipse.tcf.protocol.IToken;
import org.eclipse.tcf.protocol.Protocol;
import org.eclipse.tcf.services.IFileSystem;
import org.eclipse.tcf.services.IFileSystem.DoneStat;
import org.eclipse.tcf.services.IFileSystem.FileAttrs;
import org.eclipse.tcf.services.IFileSystem.FileSystemException;
import org.eclipse.tcf.te.tcf.core.Tcf;
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 base operation class for creating a file or a folder in the file system of Target
* Explorer.
*/
public abstract class OpCreate extends Operation {
// The folder in which a file/folder is going to be created.
final protected FSTreeNode folder;
// The node that is created after the operation.
protected FSTreeNode node;
// The name of the node to be created.
final protected String name;
/**
* Create an FSCreate instance with the specified folder and the name of the new node.
*
* @param folder The folder in which the new node is going to be created. Must not be <code>null</code>.
* @param name The new node's name. Must not be <code>null</code>.
*/
public OpCreate(FSTreeNode folder, String name) {
Assert.isNotNull(folder);
this.folder = folder;
Assert.isNotNull(name);
this.name = name;
}
/*
* (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);
IChannel channel = null;
try {
channel = openChannel(folder.peerNode.getPeer());
monitor.worked(1);
IFileSystem service = getBlockingFileSystem(channel);
if (service != null) {
if (!folder.childrenQueried) {
// If the children of folder is not queried, load it first.
loadChildren(folder, service);
monitor.worked(1);
}
monitor.worked(1);
create(service);
monitor.worked(1);
addNode(service);
monitor.worked(1);
refresh(service);
monitor.worked(1);
}
else {
String message = NLS.bind(Messages.Operation_NoFileSystemError, folder.peerNode.getPeerId());
throw new TCFFileSystemException(IStatus.ERROR, message);
}
}
catch (TCFException e) {
throw new InvocationTargetException(e, e.getMessage());
}
finally {
if (channel != null) Tcf.getChannelManager().closeChannel(channel);
monitor.done();
}
}
/**
* Refresh new node's stat using the file system service.
*
* @param service The file system service.
* @throws TCFFileSystemException Thrown when refreshing the new node's stat.
*/
void refresh(final IFileSystem service) throws TCFFileSystemException {
if (node != null) {
final TCFFileSystemException[] errors = new TCFFileSystemException[1];
String path = node.getLocation(true);
service.stat(path, new DoneStat() {
@Override
public void doneStat(IToken token, FileSystemException error, FileAttrs attrs) {
if (error == null) {
if (node != null) node.setAttributes(attrs);
}
else {
errors[0] = newTCFException(IStatus.WARNING, error);
}
}
});
if (errors[0] != null) {
throw errors[0];
}
}
}
/**
* Add the new node to the folder and its RuntimeModel.
*
* @param service The file system service to be used.
* @throws TCFFileSystemException Thrown when adding.
*/
void addNode(final IFileSystem service) throws TCFFileSystemException {
if (Protocol.isDispatchThread()) {
node = newTreeNode();
folder.addChild(node);
}
else {
final TCFFileSystemException[] errors = new TCFFileSystemException[1];
Protocol.invokeAndWait(new Runnable() {
@Override
public void run() {
try {
addNode(service);
}
catch (TCFFileSystemException e) {
errors[0] = e;
}
}
});
if (errors[0] != null) throw errors[0];
}
}
/**
* Create the new node, either a directory node or a file node.
*
* @return The new node.
*/
protected abstract FSTreeNode newTreeNode();
/**
* Create the node in the target system.
*
* @param service The file system service used to create the new node.
* @throws TCFFileSystemException Thrown when creating the node.
*/
protected abstract void create(IFileSystem service) throws TCFFileSystemException;
/**
* Get the node that is created by this operation.
*
* @return the node created.
*/
public FSTreeNode getNode() {
return node;
}
/*
* (non-Javadoc)
* @see org.eclipse.tcf.te.tcf.filesystem.core.interfaces.IOperation#getName()
*/
@Override
public String getName() {
return NLS.bind(Messages.OpCreate_TaskName, name);
}
/*
* (non-Javadoc)
* @see org.eclipse.tcf.te.tcf.filesystem.core.interfaces.IOperation#getTotalWork()
*/
@Override
public int getTotalWork() {
return folder.childrenQueried ? 5 : 6;
}
}
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