org.eclipse.jdt.debug.ui/ui/org/eclipse/jdt/internal/debug/ui/jres/EEVMPage.java - jdt/eclipse.jdt.debug - Git at Google

 /*******************************************************************************
  * Copyright (c) 2007, 2013 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.jdt.internal.debug.ui.jres;

 import java.io.File;

 import org.eclipse.core.runtime.CoreException;
 import org.eclipse.core.runtime.IStatus;
 import org.eclipse.core.runtime.Status;
 import org.eclipse.debug.internal.ui.SWTFactory;
 import org.eclipse.debug.ui.StringVariableSelectionDialog;
 import org.eclipse.jdt.debug.ui.launchConfigurations.AbstractVMInstallPage;
 import org.eclipse.jdt.internal.debug.ui.IJavaDebugHelpContextIds;
 import org.eclipse.jdt.internal.debug.ui.JavaDebugImages;
 import org.eclipse.jdt.internal.debug.ui.StatusInfo;
 import org.eclipse.jdt.internal.launching.EEVMInstall;
 import org.eclipse.jdt.launching.IVMInstallType;
 import org.eclipse.jdt.launching.JavaRuntime;
 import org.eclipse.jdt.launching.VMStandin;
 import org.eclipse.jface.dialogs.Dialog;
 import org.eclipse.jface.window.Window;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.custom.BusyIndicator;
 import org.eclipse.swt.events.ModifyEvent;
 import org.eclipse.swt.events.ModifyListener;
 import org.eclipse.swt.events.SelectionAdapter;
 import org.eclipse.swt.events.SelectionEvent;
 import org.eclipse.swt.events.SelectionListener;
 import org.eclipse.swt.graphics.Image;
 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.FileDialog;
 import org.eclipse.swt.widgets.Label;
 import org.eclipse.swt.widgets.Text;
 import org.eclipse.ui.PlatformUI;

 /**
  * Page used to edit an 'EE' VM.
  *
  * @since 3.3
  */
 public class EEVMPage extends AbstractVMInstallPage {

 	// VM being edited or created
 	private VMStandin fVM;
 	private Text fVMName;
 	private Text fVMArgs;
 	private Text fEEFile;
 	private VMLibraryBlock fLibraryBlock;
 	private IStatus[] fFieldStatus = new IStatus[1];
 	private boolean fIgnoreCallbacks = false;

 	/**
 	 *
 	 */
 	public EEVMPage() {
 		super(JREMessages.EEVMPage_0);
 		for (int i = 0; i < fFieldStatus.length; i++) {
 			fFieldStatus[i] = Status.OK_STATUS;
 		}
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.jface.dialogs.IDialogPage#getImage()
 	 */
 	@Override
 	public Image getImage() {
 		return JavaDebugImages.get(JavaDebugImages.IMG_WIZBAN_LIBRARY);
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.jface.dialogs.IDialogPage#createControl(org.eclipse.swt.widgets.Composite)
 	 */
 	public void createControl(Composite p) {
 		// create a composite with standard margins and spacing
 		Composite composite = new Composite(p, SWT.NONE);
 		GridLayout layout = new GridLayout();
 		layout.numColumns = 3;
 		composite.setLayout(layout);
 		composite.setLayoutData(new GridData(GridData.FILL_BOTH));

 	// VM location
 		SWTFactory.createLabel(composite, JREMessages.EEVMPage_1, 1);
 		fEEFile = SWTFactory.createSingleText(composite, 1);
 		Button folders = SWTFactory.createPushButton(composite, JREMessages.EEVMPage_2, null);
 		GridData data = (GridData) folders.getLayoutData();
 		data.horizontalAlignment = GridData.END;
 	//VM name
 		SWTFactory.createLabel(composite, JREMessages.addVMDialog_jreName, 1);
 		fVMName = SWTFactory.createSingleText(composite, 2);
 	//VM arguments
 		Label label = SWTFactory.createLabel(composite, JREMessages.AddVMDialog_23, 2);
 		GridData gd = (GridData) label.getLayoutData();
 		gd.verticalAlignment = SWT.BEGINNING;
 		fVMArgs = SWTFactory.createText(composite, SWT.BORDER | SWT.V_SCROLL | SWT.WRAP, 3, ""); //$NON-NLS-1$
 		gd = (GridData) fVMArgs.getLayoutData();
 		gd.widthHint = 200;
 		gd.heightHint = 75;
 	//Variables button
 		Button variables = SWTFactory.createPushButton(composite, JREMessages.EEVMPage_3, null);
 		gd = (GridData) variables.getLayoutData();
 		gd.horizontalSpan = 3;
 		gd.horizontalAlignment = GridData.END;
 	//VM libraries block
 		SWTFactory.createLabel(composite, JREMessages.AddVMDialog_JRE_system_libraries__1, 3);
 		fLibraryBlock = new VMLibraryBlock();
 		fLibraryBlock.setWizard(getWizard());
 		fLibraryBlock.createControl(composite);
 		Control libControl = fLibraryBlock.getControl();
 		gd = new GridData(GridData.FILL_BOTH);
 		gd.horizontalSpan = 3;
 		libControl.setLayoutData(gd);

 		initializeFields();
 	//add the listeners now to prevent them from monkeying with initialized settings
 		fVMName.addModifyListener(new ModifyListener() {
 			public void modifyText(ModifyEvent e) {
 				if (!fIgnoreCallbacks) {
 					validateVMName();
 				}
 			}
 		});
 		fEEFile.addModifyListener(new ModifyListener() {
 			public void modifyText(ModifyEvent e) {
 				if (!fIgnoreCallbacks) {
 					if(fVM == null) {
 						reloadDefinitionFile();
 					}
 					else if(validateDefinitionFile().isOK()) {
 						reloadDefinitionFile();
 					}
 				}
 			}
 		});
 		folders.addSelectionListener(new SelectionListener() {
 			public void widgetDefaultSelected(SelectionEvent e) {}
 			public void widgetSelected(SelectionEvent e) {
 				FileDialog dialog = new FileDialog(getShell());
 				dialog.setFilterExtensions(new String[]{"*.ee"}); //$NON-NLS-1$
 				File file = getDefinitionFile();
 				String text = fEEFile.getText();
 				if (file != null && file.isFile()) {
 					text = file.getParentFile().getAbsolutePath();
 				}
 				dialog.setFileName(text);
 				String newPath = dialog.open();
 				if (newPath != null) {
 					fEEFile.setText(newPath);
 				}
 			}
 		});
 		variables.addSelectionListener(new SelectionAdapter() {
 			@Override
 			public void widgetSelected(SelectionEvent e) {
 				StringVariableSelectionDialog dialog = new StringVariableSelectionDialog(getShell());
 				if (dialog.open() == Window.OK) {
 					String expression = dialog.getVariableExpression();
 					if (expression != null) {
 						fVMArgs.insert(expression);
 					}
 				}
 			}
 		});
 		Dialog.applyDialogFont(composite);
 		setControl(composite);
 		PlatformUI.getWorkbench().getHelpSystem().setHelp(getControl(), IJavaDebugHelpContextIds.EDIT_JRE_EE_FILE_WIZARD_PAGE);
 	}

 	/**
 	 * Validates the JRE location
 	 * @return the status after validating the JRE location
 	 */
 	private IStatus validateDefinitionFile() {
 		String locationName = fEEFile.getText();
 		IStatus s = null;
 		File file = null;
 		if (locationName.length() == 0) {
 			s = new StatusInfo(IStatus.WARNING, JREMessages.EEVMPage_4);
 		}  else {
 			file = new File(locationName);
 			if (!file.exists()) {
 				s = new StatusInfo(IStatus.ERROR, JREMessages.EEVMPage_5);
 			} else {
 				final IStatus[] temp = new IStatus[1];
 				Runnable r = new Runnable() {
 					public void run() {
 						IStatus status = fVM.getVMInstallType().validateInstallLocation(fVM.getInstallLocation());
 						if (status.getSeverity() != IStatus.ERROR) {
 							temp[0] = Status.OK_STATUS;
 						} else {
 							temp[0] = status;
 						}
 					}
 				};
 				BusyIndicator.showWhile(getShell().getDisplay(), r);
 				s = temp[0];
 			}
 		}
 		setDefinitionFileStatus(s);
 		updatePageStatus();
 		return s;
 	}

 	/**
 	 * Initializes the JRE attributes from the definition file
 	 */
 	private void reloadDefinitionFile() {
 		IStatus s = Status.OK_STATUS;
 		File file = getDefinitionFile();
 		if (file != null && file.exists()) {
 			final IStatus[] temp = new IStatus[1];
 			final VMStandin[] vm = new VMStandin[1];
 			final File tempFile = file;
 			Runnable r = new Runnable() {
 				public void run() {
 					try {
 						vm[0] = JavaRuntime.createVMFromDefinitionFile(tempFile, fVM.getName(), fVM.getId());
 						temp[0] = Status.OK_STATUS;
 					} catch (CoreException e) {
 						temp[0] = e.getStatus();
 					}
 				}
 			};
 			BusyIndicator.showWhile(getShell().getDisplay(), r);
 			s = temp[0];
 			if (s.isOK()) {
 				fVM = vm[0];
 			}
 		}
 		if (s.isOK() && file != null) {
 			initializeFields();
 		}
 		setDefinitionFileStatus(s);
 	}

 	/**
 	 * Validates the entered name of the VM
 	 */
 	private void validateVMName() {
 		nameChanged(fVMName.getText());
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.jdt.debug.ui.launchConfigurations.AbstractVMInstallPage#finish()
 	 */
 	@Override
 	public boolean finish() {
 		setFieldValuesToVM(fVM);
 		fLibraryBlock.finish();
 		return true;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.jdt.debug.ui.launchConfigurations.AbstractVMInstallPage#getSelection()
 	 */
 	@Override
 	public VMStandin getSelection() {
 		return fVM;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.jdt.debug.ui.launchConfigurations.AbstractVMInstallPage#setSelection(org.eclipse.jdt.launching.VMStandin)
 	 */
 	@Override
 	public void setSelection(VMStandin vm) {
 		super.setSelection(vm);
 		fVM = vm;
 		setTitle(JREMessages.EEVMPage_6);
 		setDescription(JREMessages.EEVMPage_7);
 	}

 	/**
 	 * initialize fields to the specified VM
 	 * @param vm the VM to initialize from
 	 */
 	protected void setFieldValuesToVM(VMStandin vm) {
 		vm.setName(fVMName.getText());
 		String argString = fVMArgs.getText().trim();
 		if (argString != null && argString.length() > 0) {
 			vm.setVMArgs(argString);
 		} else {
 			vm.setVMArgs(null);
 		}
 	}

 	/**
 	 * Returns the definition file from the text control or <code>null</code>
 	 * if none.
 	 *
 	 * @return definition file or <code>null</code>
 	 */
 	private File getDefinitionFile() {
 		String path = fEEFile.getText().trim();
 		if (path.length() > 0) {
 			return new File(path);
 		}
 		return null;
 	}

 	/**
 	 * Creates a unique name for the VMInstallType
 	 * @param vmType the vm install type
 	 * @return a unique name
 	 */
 	protected static String createUniqueId(IVMInstallType vmType) {
 		String id = null;
 		do {
 			id = String.valueOf(System.currentTimeMillis());
 		} while (vmType.findVMInstall(id) != null);
 		return id;
 	}

 	/**
 	 * Initialize the dialogs fields
 	 */
 	private void initializeFields() {
 		try {
 			fIgnoreCallbacks = true;
 			fLibraryBlock.setSelection(fVM);
 			fVMName.setText(fVM.getName());
 			String eePath = fVM.getAttribute(EEVMInstall.ATTR_DEFINITION_FILE);
 			if (eePath != null) {
 				fEEFile.setText(eePath);
 			}
 			String vmArgs = fVM.getVMArgs();
 			if (vmArgs != null) {
 				fVMArgs.setText(vmArgs);
 			}
 			validateVMName();
 			validateDefinitionFile();
 		} finally {
 			fIgnoreCallbacks = false;
 		}
 	}

 	/**
 	 * Sets the status of the definition file.
 	 *
 	 * @param status definition file status
 	 */
 	private void setDefinitionFileStatus(IStatus status) {
 		fFieldStatus[0] = status;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.jface.dialogs.DialogPage#getErrorMessage()
 	 */
 	@Override
 	public String getErrorMessage() {
 		String message = super.getErrorMessage();
 		if (message == null) {
 			return fLibraryBlock.getErrorMessage();
 		}
 		return message;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.jface.wizard.WizardPage#isPageComplete()
 	 */
 	@Override
 	public boolean isPageComplete() {
 		boolean complete = super.isPageComplete();
 		if (complete) {
 			return fLibraryBlock.isPageComplete();
 		}
 		return complete;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.jdt.debug.ui.launchConfigurations.AbstractVMInstallPage#getVMStatus()
 	 */
 	@Override
 	protected IStatus[] getVMStatus() {
 		return fFieldStatus;
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2007, 2013 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.jdt.internal.debug.ui.jres;

	import java.io.File;

	import org.eclipse.core.runtime.CoreException;
	import org.eclipse.core.runtime.IStatus;
	import org.eclipse.core.runtime.Status;
	import org.eclipse.debug.internal.ui.SWTFactory;
	import org.eclipse.debug.ui.StringVariableSelectionDialog;
	import org.eclipse.jdt.debug.ui.launchConfigurations.AbstractVMInstallPage;
	import org.eclipse.jdt.internal.debug.ui.IJavaDebugHelpContextIds;
	import org.eclipse.jdt.internal.debug.ui.JavaDebugImages;
	import org.eclipse.jdt.internal.debug.ui.StatusInfo;
	import org.eclipse.jdt.internal.launching.EEVMInstall;
	import org.eclipse.jdt.launching.IVMInstallType;
	import org.eclipse.jdt.launching.JavaRuntime;
	import org.eclipse.jdt.launching.VMStandin;
	import org.eclipse.jface.dialogs.Dialog;
	import org.eclipse.jface.window.Window;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.custom.BusyIndicator;
	import org.eclipse.swt.events.ModifyEvent;
	import org.eclipse.swt.events.ModifyListener;
	import org.eclipse.swt.events.SelectionAdapter;
	import org.eclipse.swt.events.SelectionEvent;
	import org.eclipse.swt.events.SelectionListener;
	import org.eclipse.swt.graphics.Image;
	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.FileDialog;
	import org.eclipse.swt.widgets.Label;
	import org.eclipse.swt.widgets.Text;
	import org.eclipse.ui.PlatformUI;

	/**
	* Page used to edit an 'EE' VM.
	*
	* @since 3.3
	*/
	public class EEVMPage extends AbstractVMInstallPage {

	// VM being edited or created
	private VMStandin fVM;
	private Text fVMName;
	private Text fVMArgs;
	private Text fEEFile;
	private VMLibraryBlock fLibraryBlock;
	private IStatus[] fFieldStatus = new IStatus[1];
	private boolean fIgnoreCallbacks = false;

	/**
	*
	*/
	public EEVMPage() {
	super(JREMessages.EEVMPage_0);
	for (int i = 0; i < fFieldStatus.length; i++) {
	fFieldStatus[i] = Status.OK_STATUS;
	}
	}

	/* (non-Javadoc)
	* @see org.eclipse.jface.dialogs.IDialogPage#getImage()
	*/
	@Override
	public Image getImage() {
	return JavaDebugImages.get(JavaDebugImages.IMG_WIZBAN_LIBRARY);
	}

	/* (non-Javadoc)
	* @see org.eclipse.jface.dialogs.IDialogPage#createControl(org.eclipse.swt.widgets.Composite)
	*/
	public void createControl(Composite p) {
	// create a composite with standard margins and spacing
	Composite composite = new Composite(p, SWT.NONE);
	GridLayout layout = new GridLayout();
	layout.numColumns = 3;
	composite.setLayout(layout);
	composite.setLayoutData(new GridData(GridData.FILL_BOTH));

	// VM location
	SWTFactory.createLabel(composite, JREMessages.EEVMPage_1, 1);
	fEEFile = SWTFactory.createSingleText(composite, 1);
	Button folders = SWTFactory.createPushButton(composite, JREMessages.EEVMPage_2, null);
	GridData data = (GridData) folders.getLayoutData();
	data.horizontalAlignment = GridData.END;
	//VM name
	SWTFactory.createLabel(composite, JREMessages.addVMDialog_jreName, 1);
	fVMName = SWTFactory.createSingleText(composite, 2);
	//VM arguments
	Label label = SWTFactory.createLabel(composite, JREMessages.AddVMDialog_23, 2);
	GridData gd = (GridData) label.getLayoutData();
	gd.verticalAlignment = SWT.BEGINNING;
	fVMArgs = SWTFactory.createText(composite, SWT.BORDER \| SWT.V_SCROLL \| SWT.WRAP, 3, ""); //$NON-NLS-1$
	gd = (GridData) fVMArgs.getLayoutData();
	gd.widthHint = 200;
	gd.heightHint = 75;
	//Variables button
	Button variables = SWTFactory.createPushButton(composite, JREMessages.EEVMPage_3, null);
	gd = (GridData) variables.getLayoutData();
	gd.horizontalSpan = 3;
	gd.horizontalAlignment = GridData.END;
	//VM libraries block
	SWTFactory.createLabel(composite, JREMessages.AddVMDialog_JRE_system_libraries__1, 3);
	fLibraryBlock = new VMLibraryBlock();
	fLibraryBlock.setWizard(getWizard());
	fLibraryBlock.createControl(composite);
	Control libControl = fLibraryBlock.getControl();
	gd = new GridData(GridData.FILL_BOTH);
	gd.horizontalSpan = 3;
	libControl.setLayoutData(gd);

	initializeFields();
	//add the listeners now to prevent them from monkeying with initialized settings
	fVMName.addModifyListener(new ModifyListener() {
	public void modifyText(ModifyEvent e) {
	if (!fIgnoreCallbacks) {
	validateVMName();
	}
	}
	});
	fEEFile.addModifyListener(new ModifyListener() {
	public void modifyText(ModifyEvent e) {
	if (!fIgnoreCallbacks) {
	if(fVM == null) {
	reloadDefinitionFile();
	}
	else if(validateDefinitionFile().isOK()) {
	reloadDefinitionFile();
	}
	}
	}
	});
	folders.addSelectionListener(new SelectionListener() {
	public void widgetDefaultSelected(SelectionEvent e) {}
	public void widgetSelected(SelectionEvent e) {
	FileDialog dialog = new FileDialog(getShell());
	dialog.setFilterExtensions(new String[]{"*.ee"}); //$NON-NLS-1$
	File file = getDefinitionFile();
	String text = fEEFile.getText();
	if (file != null && file.isFile()) {
	text = file.getParentFile().getAbsolutePath();
	}
	dialog.setFileName(text);
	String newPath = dialog.open();
	if (newPath != null) {
	fEEFile.setText(newPath);
	}
	}
	});
	variables.addSelectionListener(new SelectionAdapter() {
	@Override
	public void widgetSelected(SelectionEvent e) {
	StringVariableSelectionDialog dialog = new StringVariableSelectionDialog(getShell());
	if (dialog.open() == Window.OK) {
	String expression = dialog.getVariableExpression();
	if (expression != null) {
	fVMArgs.insert(expression);
	}
	}
	}
	});
	Dialog.applyDialogFont(composite);
	setControl(composite);
	PlatformUI.getWorkbench().getHelpSystem().setHelp(getControl(), IJavaDebugHelpContextIds.EDIT_JRE_EE_FILE_WIZARD_PAGE);
	}

	/**
	* Validates the JRE location
	* @return the status after validating the JRE location
	*/
	private IStatus validateDefinitionFile() {
	String locationName = fEEFile.getText();
	IStatus s = null;
	File file = null;
	if (locationName.length() == 0) {
	s = new StatusInfo(IStatus.WARNING, JREMessages.EEVMPage_4);
	} else {
	file = new File(locationName);
	if (!file.exists()) {
	s = new StatusInfo(IStatus.ERROR, JREMessages.EEVMPage_5);
	} else {
	final IStatus[] temp = new IStatus[1];
	Runnable r = new Runnable() {
	public void run() {
	IStatus status = fVM.getVMInstallType().validateInstallLocation(fVM.getInstallLocation());
	if (status.getSeverity() != IStatus.ERROR) {
	temp[0] = Status.OK_STATUS;
	} else {
	temp[0] = status;
	}
	}
	};
	BusyIndicator.showWhile(getShell().getDisplay(), r);
	s = temp[0];
	}
	}
	setDefinitionFileStatus(s);
	updatePageStatus();
	return s;
	}

	/**
	* Initializes the JRE attributes from the definition file
	*/
	private void reloadDefinitionFile() {
	IStatus s = Status.OK_STATUS;
	File file = getDefinitionFile();
	if (file != null && file.exists()) {
	final IStatus[] temp = new IStatus[1];
	final VMStandin[] vm = new VMStandin[1];
	final File tempFile = file;
	Runnable r = new Runnable() {
	public void run() {
	try {
	vm[0] = JavaRuntime.createVMFromDefinitionFile(tempFile, fVM.getName(), fVM.getId());
	temp[0] = Status.OK_STATUS;
	} catch (CoreException e) {
	temp[0] = e.getStatus();
	}
	}
	};
	BusyIndicator.showWhile(getShell().getDisplay(), r);
	s = temp[0];
	if (s.isOK()) {
	fVM = vm[0];
	}
	}
	if (s.isOK() && file != null) {
	initializeFields();
	}
	setDefinitionFileStatus(s);
	}

	/**
	* Validates the entered name of the VM
	*/
	private void validateVMName() {
	nameChanged(fVMName.getText());
	}

	/* (non-Javadoc)
	* @see org.eclipse.jdt.debug.ui.launchConfigurations.AbstractVMInstallPage#finish()
	*/
	@Override
	public boolean finish() {
	setFieldValuesToVM(fVM);
	fLibraryBlock.finish();
	return true;
	}

	/* (non-Javadoc)
	* @see org.eclipse.jdt.debug.ui.launchConfigurations.AbstractVMInstallPage#getSelection()
	*/
	@Override
	public VMStandin getSelection() {
	return fVM;
	}

	/* (non-Javadoc)
	* @see org.eclipse.jdt.debug.ui.launchConfigurations.AbstractVMInstallPage#setSelection(org.eclipse.jdt.launching.VMStandin)
	*/
	@Override
	public void setSelection(VMStandin vm) {
	super.setSelection(vm);
	fVM = vm;
	setTitle(JREMessages.EEVMPage_6);
	setDescription(JREMessages.EEVMPage_7);
	}

	/**
	* initialize fields to the specified VM
	* @param vm the VM to initialize from
	*/
	protected void setFieldValuesToVM(VMStandin vm) {
	vm.setName(fVMName.getText());
	String argString = fVMArgs.getText().trim();
	if (argString != null && argString.length() > 0) {
	vm.setVMArgs(argString);
	} else {
	vm.setVMArgs(null);
	}
	}

	/**
	* Returns the definition file from the text control or <code>null</code>
	* if none.
	*
	* @return definition file or <code>null</code>
	*/
	private File getDefinitionFile() {
	String path = fEEFile.getText().trim();
	if (path.length() > 0) {
	return new File(path);
	}
	return null;
	}

	/**
	* Creates a unique name for the VMInstallType
	* @param vmType the vm install type
	* @return a unique name
	*/
	protected static String createUniqueId(IVMInstallType vmType) {
	String id = null;
	do {
	id = String.valueOf(System.currentTimeMillis());
	} while (vmType.findVMInstall(id) != null);
	return id;
	}

	/**
	* Initialize the dialogs fields
	*/
	private void initializeFields() {
	try {
	fIgnoreCallbacks = true;
	fLibraryBlock.setSelection(fVM);
	fVMName.setText(fVM.getName());
	String eePath = fVM.getAttribute(EEVMInstall.ATTR_DEFINITION_FILE);
	if (eePath != null) {
	fEEFile.setText(eePath);
	}
	String vmArgs = fVM.getVMArgs();
	if (vmArgs != null) {
	fVMArgs.setText(vmArgs);
	}
	validateVMName();
	validateDefinitionFile();
	} finally {
	fIgnoreCallbacks = false;
	}
	}

	/**
	* Sets the status of the definition file.
	*
	* @param status definition file status
	*/
	private void setDefinitionFileStatus(IStatus status) {
	fFieldStatus[0] = status;
	}

	/* (non-Javadoc)
	* @see org.eclipse.jface.dialogs.DialogPage#getErrorMessage()
	*/
	@Override
	public String getErrorMessage() {
	String message = super.getErrorMessage();
	if (message == null) {
	return fLibraryBlock.getErrorMessage();
	}
	return message;
	}

	/* (non-Javadoc)
	* @see org.eclipse.jface.wizard.WizardPage#isPageComplete()
	*/
	@Override
	public boolean isPageComplete() {
	boolean complete = super.isPageComplete();
	if (complete) {
	return fLibraryBlock.isPageComplete();
	}
	return complete;
	}

	/* (non-Javadoc)
	* @see org.eclipse.jdt.debug.ui.launchConfigurations.AbstractVMInstallPage#getVMStatus()
	*/
	@Override
	protected IStatus[] getVMStatus() {
	return fFieldStatus;
	}
	}