/*******************************************************************************
* Copyright (c) 2013 Red Hat, Inc.
* 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:
* Camilo Bernal <cabernal@redhat.com> - Initial Implementation.
*******************************************************************************/
package org.eclipse.linuxtools.internal.perf.handlers;
import java.net.URI;
import java.text.MessageFormat;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.IHandler;
import org.eclipse.core.commands.IHandlerListener;
import org.eclipse.core.filesystem.IFileStore;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IPath;
import org.eclipse.jface.dialogs.IInputValidator;
import org.eclipse.jface.dialogs.InputDialog;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.window.Window;
import org.eclipse.linuxtools.internal.perf.BaseDataManipulator;
import org.eclipse.linuxtools.internal.perf.PerfPlugin;
import org.eclipse.linuxtools.profiling.launch.IRemoteFileProxy;
import org.eclipse.linuxtools.profiling.launch.RemoteProxyManager;
import org.eclipse.swt.widgets.Display;
/**
* Class for handling general tasks handled by session saving commands:
* File name creation and validation, command enablement, data file verification.
*/
public abstract class AbstractSaveDataHandler extends BaseDataManipulator implements IHandler {
@Override
public Object execute(ExecutionEvent event) {
InputDialog dialog = new InputDialog(Display.getCurrent()
.getActiveShell(), Messages.PerfSaveSession_title,
Messages.PerfSaveSession_msg, "", new IInputValidator() { //$NON-NLS-1$
@Override
public String isValid(String newText) {
if (newText.isEmpty()) {
return Messages.PerfSaveSession_invalid_filename_msg;
}
return null;
}
});
if (dialog.open() == Window.OK) {
saveData(dialog.getValue());
}
return null;
}
@Override
public boolean isEnabled() {
IPath curWorkingDirectory = getWorkingDir();
return curWorkingDirectory != null && !curWorkingDirectory.isEmpty()
&& verifyData();
}
/**
* Get current working directory.
* @return current working directory.
*/
protected IPath getWorkingDir() {
return PerfPlugin.getDefault().getWorkingDir();
}
protected URI getWorkingDirURI() {
return PerfPlugin.getDefault().getWorkingDirURI();
}
/**
* New data location based on specified name, which the specified
* extension will be appended to.
*
* @param filename
* @param extension
* @return
*/
public IPath getNewDataLocation(String filename, String extension) {
IPath newFilename = getWorkingDir().append(filename);
return newFilename.addFileExtension(extension);
}
/**
* Verify that we can save the specified file.
*
* @param file <code>File</code> to save
* @return true if we can go ahead and save the file, false otherwise
*/
public boolean canSave(IPath file) {
IRemoteFileProxy proxy = null;
try {
proxy = RemoteProxyManager.getInstance().getFileProxy(getWorkingDirURI());
} catch (CoreException e) {
MessageDialog.openError(Display.getCurrent().getActiveShell(), Messages.MsgProxyError, Messages.MsgProxyError);
}
IFileStore fileStore = proxy.getResource(file.toPortableString());
if (fileStore.fetchInfo().exists()) {
String msg = MessageFormat.format(
Messages.PerfSaveSession_file_exists_msg,
new Object[] { fileStore.getName() });
return MessageDialog.openQuestion(Display.getCurrent()
.getActiveShell(),
Messages.PerfSaveSession_file_exists_title, msg);
}
return true;
}
/**
* Open error dialog informing user of saving failure.
* @param filename
*/
public void openErroDialog(final String title, String pattern, String arg) {
final String errorMsg = MessageFormat.format(pattern, new Object[] { arg });
if (Display.getCurrent() != null) {
MessageDialog.openError(Display.getCurrent().getActiveShell(), title, errorMsg);
} else {
Display.getDefault().syncExec(() -> MessageDialog.openError(Display.getCurrent().getActiveShell(), title, errorMsg));
}
}
/**
* Save data to file with specified name and return handle
*
* @param filename the file name
*/
public abstract IPath saveData(String filename);
/**
* Verify data to save.
*
* @return true if data is valid
*/
public abstract boolean verifyData();
@Override
public boolean isHandled() {
return isEnabled();
}
@Override
public void removeHandlerListener(IHandlerListener handlerListener) {
}
@Override
public void addHandlerListener(IHandlerListener handlerListener) {
}
@Override
public void dispose() {
}
}