/*******************************************************************************
* Copyright (c) 2003, 2014 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 API and implementation
*******************************************************************************/
package org.eclipse.wst.server.ui.internal;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
import org.eclipse.core.resources.IFolder;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.resources.IResourceRuleFactory;
import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.core.runtime.jobs.ISchedulingRule;
import org.eclipse.core.runtime.jobs.Job;
import org.eclipse.core.runtime.jobs.MultiRule;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.osgi.util.NLS;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.PlatformUI;
import org.eclipse.wst.server.core.IServer;
import org.eclipse.wst.server.core.IServer.IOperationListener;
import org.eclipse.wst.server.ui.DeleteServerDialogExtension;
/**
* Dialog that prompts a user to delete server(s) and/or server configuration(s).
*/
public class DeleteServerDialog extends MessageDialog {
protected IServer[] servers;
protected IFolder[] configs;
protected List<IServer> runningServersList;
protected boolean runningServerCanStop;
protected Button checkDeleteConfigs;
protected Button checkDeleteRunning;
protected Button checkDeleteRunningStop;
List<DeleteServerDialogExtension> dialogExtensionLst = new ArrayList<DeleteServerDialogExtension>();
/**
* DeleteServerDialog constructor comment.
*
* @param parentShell a shell
* @param servers an array of servers
* @param configs an array of server configurations
*/
public DeleteServerDialog(Shell parentShell, IServer[] servers, IFolder[] configs) {
super(parentShell, Messages.deleteServerDialogTitle, null, null, QUESTION,
new String[] { IDialogConstants.OK_LABEL, IDialogConstants.CANCEL_LABEL }, 0);
if (servers == null || configs == null)
throw new IllegalArgumentException();
this.servers = servers;
this.configs = configs;
runningServersList = new ArrayList<IServer>();
for (int i = 0 ; i < servers.length ; ++i) {
if (servers[i].getServerState() != IServer.STATE_STOPPED)
runningServersList.add(servers[i]);
if (servers[i].canStop().isOK())
runningServerCanStop = true;
}
if (servers.length == 1)
message = NLS.bind(Messages.deleteServerDialogMessage, servers[0].getName());
else
message = NLS.bind(Messages.deleteServerDialogMessageMany, servers.length + "");
}
/**
*
*/
protected Control createCustomArea(Composite parent) {
// create a composite with standard margins and spacing
Composite composite = new Composite(parent, SWT.NONE);
GridLayout layout = new GridLayout();
layout.marginHeight = convertVerticalDLUsToPixels(IDialogConstants.VERTICAL_MARGIN);
layout.marginWidth = convertHorizontalDLUsToPixels(IDialogConstants.HORIZONTAL_MARGIN);
layout.verticalSpacing = convertVerticalDLUsToPixels(IDialogConstants.VERTICAL_SPACING);
layout.horizontalSpacing = convertHorizontalDLUsToPixels(IDialogConstants.HORIZONTAL_SPACING);
composite.setLayout(layout);
composite.setLayoutData(new GridData(GridData.FILL_BOTH));
composite.setFont(parent.getFont());
PlatformUI.getWorkbench().getHelpSystem().setHelp(composite, ContextIds.DELETE_SERVER_DIALOG);
if (configs.length > 0) {
checkDeleteConfigs = new Button(composite, SWT.CHECK);
checkDeleteConfigs.setText(NLS.bind(Messages.deleteServerDialogLooseConfigurations, configs[0].getName()));
checkDeleteConfigs.setSelection(true);
}
// prompt for stopping running servers
int size = runningServersList.size();
if (size > 0) {
if (servers.length > 1) {
checkDeleteRunning = new Button(composite, SWT.CHECK);
checkDeleteRunning.setText(Messages.deleteServerDialogRunningServer);
checkDeleteRunning.setSelection(true);
}
if (runningServerCanStop) {
checkDeleteRunningStop = new Button(composite, SWT.CHECK);
checkDeleteRunningStop.setText(Messages.deleteServerDialogRunningServerStop);
checkDeleteRunningStop.setSelection(true);
GridData data = new GridData();
if (checkDeleteRunning != null) {
// Only indent the checkbox if the delete running servers checkbox is available.
data.horizontalIndent = 15;
checkDeleteRunning.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
checkDeleteRunningStop.setEnabled(checkDeleteRunning.getSelection());
}
});
}
checkDeleteRunningStop.setLayoutData(data);
}
}
List<DeleteServerDialogExtension> fullDialogExtensionLst = ServerUIPlugin.getDeleteServerDialogExtensions();
// Add the dialog extension UI.
for (DeleteServerDialogExtension curDialogExtension : fullDialogExtensionLst) {
curDialogExtension.setServers(servers);
if (curDialogExtension.isEnabled()) {
dialogExtensionLst.add(curDialogExtension);
curDialogExtension.createControl(composite);
}
}
Dialog.applyDialogFont(composite);
return composite;
}
protected void buttonPressed(int buttonId) {
if (buttonId == OK) {
final boolean checked = (checkDeleteConfigs != null && checkDeleteConfigs.getSelection());
final boolean deleteRunning = (checkDeleteRunning == null || checkDeleteRunning.getSelection());
final boolean deleteRunningStop = (checkDeleteRunningStop != null && checkDeleteRunningStop.getSelection());
Thread t = new Thread("Delete servers") {
public void run() {
if (runningServersList.size() > 0) {
// stop servers and/or updates servers' list
prepareForDeletion(deleteRunning, deleteRunningStop);
}
Job job = new Job(Messages.deleteServerTask) {
protected IStatus run(IProgressMonitor monitor) {
if (servers.length == 0) {
// all servers have been deleted from list
return Status.OK_STATUS;
}
try {
if (monitor.isCanceled())
return Status.CANCEL_STATUS;
for (DeleteServerDialogExtension curDialogExtension : dialogExtensionLst) {
curDialogExtension.performPreDeleteAction(monitor);
}
int size = servers.length;
for (int i = 0; i < size; i++)
servers[i].delete();
if (monitor.isCanceled())
return Status.CANCEL_STATUS;
if (checked) {
size = configs.length;
for (int i = 0; i < size; i++) {
configs[i].refreshLocal(IResource.DEPTH_INFINITE, monitor);
configs[i].delete(true, true, monitor);
}
}
for (DeleteServerDialogExtension curDialogExtension : dialogExtensionLst) {
curDialogExtension.performPostDeleteAction(monitor);
}
} catch (Exception e) {
if (Trace.SEVERE) {
Trace.trace(Trace.STRING_SEVERE, "Error while deleting resources", e);
}
return new Status(IStatus.ERROR, ServerUIPlugin.PLUGIN_ID, 0, e.getMessage(), e);
}
return Status.OK_STATUS;
}
};
// set rule for workspace and servers
int size = servers.length;
ISchedulingRule[] rules = new ISchedulingRule[size+1];
for (int i = 0; i < size; i++)
rules[i] = servers[i];
IResourceRuleFactory ruleFactory = ResourcesPlugin.getWorkspace().getRuleFactory();
rules[size] = ruleFactory.createRule(ResourcesPlugin.getWorkspace().getRoot());
job.setRule(MultiRule.combine(rules));
job.setPriority(Job.BUILD);
job.schedule();
}
};
t.setDaemon(true);
t.start();
}
super.buttonPressed(buttonId);
}
/**
* Updates servers' & configs' lists. If <code>deleteRunning</code> is <code>true</code>
* and a server can't be stopped, it isn't removed.
* @param deleteRunning if <code>true</code> running servers will be stopped
* before being deleted, if <code>false</code> running servers will be removed
* from deletion list.
*/
protected void prepareForDeletion(boolean deleteRunning, boolean stopRunning) {
// converts servers & configs to list to facilitate removal
List<IServer> serversList = new LinkedList<IServer>(Arrays.asList(servers));
List<IFolder> configsList = new LinkedList<IFolder>(Arrays.asList(configs));
if (!deleteRunning) {
// don't delete servers or configurations
int size = runningServersList.size();
for (int i = 0; i < size; i++) {
IServer server = runningServersList.get(i);
serversList.remove(server);
if (server.getServerConfiguration() != null)
configsList.remove(server.getServerConfiguration());
}
} else {
if (stopRunning) {
// stop running servers and wait for them (stop is asynchronous)
IServer s;
MultiServerStopListener listener = new MultiServerStopListener();
int expected = 0;
Iterator iter = runningServersList.iterator();
while (iter.hasNext()) {
s = (IServer) iter.next();
if (s.canStop().isOK()) {
++expected;
s.stop(false, listener);
} else {
// server can't be stopped, don't delete it
serversList.remove(s);
configsList.remove(s.getServerConfiguration());
}
}
try {
while (expected != listener.getNumberStopped()) {
Thread.sleep(200);
}
} catch (InterruptedException e) {
if (Trace.WARNING) {
Trace.trace(Trace.STRING_WARNING, "Interrupted while waiting for servers stop");
}
}
}
}
servers = new IServer[serversList.size()];
serversList.toArray(servers);
configs = new IFolder[configsList.size()];
configsList.toArray(configs);
}
/**
* Class used to wait all servers stop. Use one instance
* for a group of servers and loop to see if the number stopped
* equals the number of servers waiting to stop.
*/
class MultiServerStopListener implements IOperationListener {
protected int num;
public void done(IStatus result) {
num++;
}
public int getNumberStopped() {
return num;
}
}
}