bundles/org.eclipse.vorto.fbeditor.ui/src/org/eclipse/vorto/fbeditor/ui/internal/wizards/IoTWizardPage.java - vorto/org.eclipse.vorto - Git at Google

 /*******************************************************************************
  * Copyright (c) 2014 Bosch Software Innovations GmbH and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * and Eclipse Distribution License v1.0 which accompany this distribution.
  *
  * The Eclipse Public License is available at
  * http://www.eclipse.org/legal/epl-v10.html
  * The Eclipse Distribution License is available at
  * http://www.eclipse.org/org/documents/edl-v10.php.
  *
  * Contributors:
  * Bosch Software Innovations GmbH - Please refer to git log
  *
  *******************************************************************************/
 package org.eclipse.vorto.fbeditor.ui.internal.wizards;

 import java.io.IOException;
 import java.util.regex.Pattern;

 import org.apache.commons.lang3.StringUtils;
 import org.eclipse.core.resources.IWorkspace;
 import org.eclipse.core.resources.ResourcesPlugin;
 import org.eclipse.core.runtime.IPath;
 import org.eclipse.core.runtime.Path;
 import org.eclipse.jface.wizard.WizardPage;
 import org.eclipse.swt.SWT;
 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.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.DirectoryDialog;
 import org.eclipse.swt.widgets.Group;
 import org.eclipse.swt.widgets.Label;
 import org.eclipse.swt.widgets.Text;
 import org.eclipse.vorto.api.common.generation.FunctionBlockMetaData;

 import com.google.common.base.Strings;


 public class IoTWizardPage extends WizardPage {

 	public static final String PROJECTNAME_REGEX = "[^a-zA-Z0-9 \\._]";

 	public static final String FUNCTIONBLOCK_REGEX = "^[A-Z][a-zA-Z]*$";
 	public static final String VERSION_REGEX = "^\\d+\\.\\d+\\.\\d+(-\\w+)*$";
 	public static final String DEFAULT_DESCRIPTION = "Function block model for ";
 	public static final String DEFAULT_FUNCTIONBLOCK_NAME = "NewFunctionBlock";
 	private Text txtFunctionBlockName;
 	private Text txtVersion;
 	private Text txtProjectName;
 	private Text txtWorkspaceLocation;
 	private Text txtDescription;
 	private String workspaceLocation;

 	public IoTWizardPage(String pageName) {
 		super(pageName);
 	}

 	/**
 	 * Create contents of the wizard.
 	 *
 	 * @param parent
 	 */
 	public void createControl(Composite parent) {
 		Composite topContainer = new Composite(parent, SWT.NULL);

 		setControl(topContainer);
 		topContainer.setLayout(new GridLayout(1, false));

 		Group grpFunctionBlock = new Group(topContainer, SWT.NONE);
 		grpFunctionBlock.setText("Function Block Details");
 		grpFunctionBlock.setLayout(new GridLayout(2, false));
 		GridData gridGroupFunctionBlock = new GridData(SWT.LEFT, SWT.CENTER,
 				false, false, 1, 1);
 		gridGroupFunctionBlock.heightHint = 134;
 		gridGroupFunctionBlock.widthHint = 570;
 		grpFunctionBlock.setLayoutData(gridGroupFunctionBlock);

 		Label lblFunctionBlockName = new Label(grpFunctionBlock, SWT.NONE);
 		lblFunctionBlockName.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER,
 				false, false, 1, 1));
 		lblFunctionBlockName.setText("Function Block Name:");

 		txtFunctionBlockName = new Text(grpFunctionBlock, SWT.BORDER);
 		GridData gridTxtFunctionBlockName = new GridData(SWT.FILL, SWT.CENTER,
 				false, false, 1, 1);
 		gridTxtFunctionBlockName.widthHint = 400;
 		txtFunctionBlockName.setLayoutData(gridTxtFunctionBlockName);
 		txtFunctionBlockName.addModifyListener(new ModifyListener() {
 			public void modifyText(ModifyEvent e) {
 				fbNameChanged();
 				dialogChanged();

 			}
 		});

 		Label lblVersion = new Label(grpFunctionBlock, SWT.NONE);
 		lblVersion.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER, false,
 				false, 1, 1));
 		lblVersion.setText("Version:");

 		txtVersion = new Text(grpFunctionBlock, SWT.BORDER);
 		GridData gridTxtVersion = new GridData(SWT.FILL, SWT.CENTER, false,
 				false, 1, 1);
 		gridTxtVersion.widthHint = 411;
 		txtVersion.setLayoutData(gridTxtVersion);
 		txtVersion.addModifyListener(new ModifyListener() {
 			public void modifyText(ModifyEvent e) {
 				fbNameChanged();
 				dialogChanged();
 			}
 		});

 		Label lblDescription = new Label(grpFunctionBlock, SWT.NONE);
 		lblDescription.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER, false,
 				false, 1, 1));
 		lblDescription.setText("Description:");

 		txtDescription = new Text(grpFunctionBlock, SWT.BORDER | SWT.V_SCROLL
 				| SWT.MULTI);
 		GridData gridTxtDescription = new GridData(SWT.FILL, SWT.TOP, true,
 				false, 1, 1);
 		gridTxtDescription.heightHint = 53;
 		txtDescription.setLayoutData(gridTxtDescription);

 		Group grpProjectDetails = new Group(topContainer, SWT.NONE);
 		grpProjectDetails.setLayout(new GridLayout(3, false));
 		GridData gridGrpProjectDetails = new GridData(SWT.CENTER, SWT.CENTER,
 				false, false, 1, 1);
 		gridGrpProjectDetails.heightHint = 97;
 		gridGrpProjectDetails.widthHint = 575;
 		grpProjectDetails.setLayoutData(gridGrpProjectDetails);
 		grpProjectDetails.setText("Project Details");

 		Label lblProjectName = new Label(grpProjectDetails, SWT.NONE);
 		GridData gridLblProjectName = new GridData(SWT.RIGHT, SWT.CENTER,
 				false, false, 1, 1);
 		gridLblProjectName.widthHint = 78;
 		lblProjectName.setLayoutData(gridLblProjectName);
 		lblProjectName.setText("Project Name:");

 		txtProjectName = new Text(grpProjectDetails, SWT.BORDER);
 		GridData gridTxtProjectName = new GridData(SWT.FILL, SWT.CENTER, false,
 				false, 1, 1);
 		gridTxtProjectName.widthHint = 370;
 		txtProjectName.setLayoutData(gridTxtProjectName);
 		txtProjectName.addModifyListener(new ModifyListener() {
 			public void modifyText(ModifyEvent e) {
 				projectNameChanged();
 				dialogChanged();
 			}
 		});
 		new Label(grpProjectDetails, SWT.NONE);

 		Label lblLocation = new Label(grpProjectDetails, SWT.NONE);
 		GridData gridLblLocation = new GridData(SWT.RIGHT, SWT.CENTER, false,
 				false, 1, 1);
 		gridLblLocation.widthHint = 48;
 		lblLocation.setLayoutData(gridLblLocation);
 		lblLocation.setText("Location:");

 		txtWorkspaceLocation = new Text(grpProjectDetails, SWT.BORDER);
 		txtWorkspaceLocation.setEditable(false);
 		GridData gridTxtLocation = new GridData(SWT.LEFT, SWT.CENTER, false,
 				false, 1, 1);
 		gridTxtLocation.widthHint = 385;
 		txtWorkspaceLocation.setLayoutData(gridTxtLocation);

 		Button btnBrowse = new Button(grpProjectDetails, SWT.NONE);
 		btnBrowse.setText("Browse...");
 		btnBrowse.addSelectionListener(new SelectionAdapter() {
 			public void widgetSelected(SelectionEvent e) {
 				handleBrowse(e);
 			}

 		});
 		initialize();
 		dialogChanged();
 		setControl(topContainer);
 	}

 	private void initialize() {
 		txtFunctionBlockName.setText(DEFAULT_FUNCTIONBLOCK_NAME);
 		txtVersion.setText(FunctionBlockMetaData.FB_DEFAULT_VERSION);
 		txtProjectName.setText(DEFAULT_FUNCTIONBLOCK_NAME);
 		txtWorkspaceLocation.setText(getWorkspaceLocation() + "/"
 				+ DEFAULT_FUNCTIONBLOCK_NAME);
 		txtDescription
 				.setText(DEFAULT_DESCRIPTION + DEFAULT_FUNCTIONBLOCK_NAME);

 	}

 	private void handleBrowse(SelectionEvent e) {
 		DirectoryDialog directoryDialog = new DirectoryDialog(getShell());
 		directoryDialog.setFilterPath(workspaceLocation);
 		directoryDialog.setText("Workspace folder selection");
 		directoryDialog.setMessage("Select a directory for this project");

 		String selectedDirectory = directoryDialog.open();
 		selectedDirectory = StringUtils.replace(selectedDirectory, "\\", "/");

 		if (selectedDirectory != null) {
 			workspaceLocation = selectedDirectory;
 			updateWorkspaceLocationField(workspaceLocation);
 			dialogChanged();
 		}
 	}

 	private void projectNameChanged() {
 		txtWorkspaceLocation.setText(getWorkspaceLocation() + "/"
 				+ getProjectName());
 	}

 	public void dialogChanged() {
 		if (this.validateProject()) {
 			this.setErrorMessage(null);
 			setPageComplete(true);
 		} else {
 			setPageComplete(false);
 		}

 	}

 	private boolean validateProject() {
 		boolean result = true;
 		String projectName = getProjectName();
 		String functionBlockName = getFunctionBlockName();
 		String fbVersion = getFunctionBlockVersion();

 		result &= validateStrExist(projectName,
 				"Project name must be specified");
 		result &= validateStrExist(functionBlockName,
 				"Functionblock name must be specified");
 		result &= validateExistingSameProjectName();

 		// if(validateNoSpaceForLocation(projectLocation)){
 		// setErrorMessage("Project location should not contain space(s).");
 		// result = false;
 		// }
 		if (checkForRegexPattern(projectName, true, PROJECTNAME_REGEX)) {
 			setErrorMessage("Project name should not contain special characters.");
 			result = false;
 		}

 		if (checkForRegexPattern(functionBlockName, false, FUNCTIONBLOCK_REGEX)) {
 			setErrorMessage("Functionblock name should start with a capital letter and must not contain any special characters.");
 			result = false;
 		}

 		if (checkForRegexPattern(fbVersion, false, VERSION_REGEX)) {
 			setErrorMessage("Version should follow pattern <MAJOR>.<MINOR>.<PATCH>");
 			result = false;
 		}

 		return result;
 	}

 	private boolean checkForRegexPattern(String input, boolean expectedBool,
 			String regexPattern) {
 		return Pattern.compile(regexPattern).matcher(input).find() == expectedBool;
 	}

 	private boolean validateStrExist(String string, String errorMsgToBeShown) {
 		if (Strings.isNullOrEmpty(string)) {
 			this.setErrorMessage(errorMsgToBeShown);
 			return false;
 		}
 		return true;
 	}

 	private boolean validateExistingSameProjectName() {
 		IWorkspace workspace = ResourcesPlugin.getWorkspace();
 		String projectName = getProjectName();

 		if (workspace.getRoot().getProject(getProjectName()).exists()) {
 			setErrorMessage("Project " + getProjectName() + " already exists.");
 			return false;
 		}

 		IPath projectLocation = ResourcesPlugin.getWorkspace().getRoot()
 				.getLocation().append(projectName);
 		if (projectLocation.toFile().exists()) {
 			try {
 				String canonicalPath = projectLocation.toFile()
 						.getCanonicalPath();
 				projectLocation = new Path(canonicalPath);

 				String existingName = projectLocation.lastSegment();
 				if (!existingName.equals(projectName)) {
 					setErrorMessage("Project " + getProjectName()
 							+ " already exists.");
 					return false;
 				}
 			} catch (IOException e) {
 			}

 		}

 		return true;
 	}

 	public void updateWorkspaceLocationField(String directory) {
 		txtWorkspaceLocation.setText(directory + "/" + getProjectName());
 	}

 	private void fbNameChanged() {
 		String fbName = getFunctionBlockName();
 		txtProjectName.setText(fbName);
 		txtWorkspaceLocation.setText(getWorkspaceLocation() + "/" + fbName);
 		txtDescription.setText(DEFAULT_DESCRIPTION + fbName);
 	}

 	public String getWorkspaceLocation() {
 		IWorkspace workspace = ResourcesPlugin.getWorkspace();
 		if (workspaceLocation == null) {
 			workspaceLocation = workspace.getRoot().getLocation().toString();
 		}
 		return workspaceLocation;
 	}

 	public String getProjectName() {
 		return txtProjectName.getText();
 	}

 	public String getFunctionBlockVersion() {
 		return txtVersion.getText();
 	}

 	public String getFunctionBlockName() {
 		return txtFunctionBlockName.getText();
 	}

 	public String getFunctionBlockDescription() {
 		return txtDescription.getText();
 	}

 }
	/*******************************************************************************
	* Copyright (c) 2014 Bosch Software Innovations GmbH and others.
	* All rights reserved. This program and the accompanying materials
	* are made available under the terms of the Eclipse Public License v1.0
	* and Eclipse Distribution License v1.0 which accompany this distribution.
	*
	* The Eclipse Public License is available at
	* http://www.eclipse.org/legal/epl-v10.html
	* The Eclipse Distribution License is available at
	* http://www.eclipse.org/org/documents/edl-v10.php.
	*
	* Contributors:
	* Bosch Software Innovations GmbH - Please refer to git log
	*
	*******************************************************************************/
	package org.eclipse.vorto.fbeditor.ui.internal.wizards;

	import java.io.IOException;
	import java.util.regex.Pattern;

	import org.apache.commons.lang3.StringUtils;
	import org.eclipse.core.resources.IWorkspace;
	import org.eclipse.core.resources.ResourcesPlugin;
	import org.eclipse.core.runtime.IPath;
	import org.eclipse.core.runtime.Path;
	import org.eclipse.jface.wizard.WizardPage;
	import org.eclipse.swt.SWT;
	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.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.DirectoryDialog;
	import org.eclipse.swt.widgets.Group;
	import org.eclipse.swt.widgets.Label;
	import org.eclipse.swt.widgets.Text;
	import org.eclipse.vorto.api.common.generation.FunctionBlockMetaData;

	import com.google.common.base.Strings;


	public class IoTWizardPage extends WizardPage {

	public static final String PROJECTNAME_REGEX = "[^a-zA-Z0-9 \\._]";

	public static final String FUNCTIONBLOCK_REGEX = "^[A-Z][a-zA-Z]*$";
	public static final String VERSION_REGEX = "^\\d+\\.\\d+\\.\\d+(-\\w+)*$";
	public static final String DEFAULT_DESCRIPTION = "Function block model for ";
	public static final String DEFAULT_FUNCTIONBLOCK_NAME = "NewFunctionBlock";
	private Text txtFunctionBlockName;
	private Text txtVersion;
	private Text txtProjectName;
	private Text txtWorkspaceLocation;
	private Text txtDescription;
	private String workspaceLocation;

	public IoTWizardPage(String pageName) {
	super(pageName);
	}

	/**
	* Create contents of the wizard.
	*
	* @param parent
	*/
	public void createControl(Composite parent) {
	Composite topContainer = new Composite(parent, SWT.NULL);

	setControl(topContainer);
	topContainer.setLayout(new GridLayout(1, false));

	Group grpFunctionBlock = new Group(topContainer, SWT.NONE);
	grpFunctionBlock.setText("Function Block Details");
	grpFunctionBlock.setLayout(new GridLayout(2, false));
	GridData gridGroupFunctionBlock = new GridData(SWT.LEFT, SWT.CENTER,
	false, false, 1, 1);
	gridGroupFunctionBlock.heightHint = 134;
	gridGroupFunctionBlock.widthHint = 570;
	grpFunctionBlock.setLayoutData(gridGroupFunctionBlock);

	Label lblFunctionBlockName = new Label(grpFunctionBlock, SWT.NONE);
	lblFunctionBlockName.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER,
	false, false, 1, 1));
	lblFunctionBlockName.setText("Function Block Name:");

	txtFunctionBlockName = new Text(grpFunctionBlock, SWT.BORDER);
	GridData gridTxtFunctionBlockName = new GridData(SWT.FILL, SWT.CENTER,
	false, false, 1, 1);
	gridTxtFunctionBlockName.widthHint = 400;
	txtFunctionBlockName.setLayoutData(gridTxtFunctionBlockName);
	txtFunctionBlockName.addModifyListener(new ModifyListener() {
	public void modifyText(ModifyEvent e) {
	fbNameChanged();
	dialogChanged();

	}
	});

	Label lblVersion = new Label(grpFunctionBlock, SWT.NONE);
	lblVersion.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER, false,
	false, 1, 1));
	lblVersion.setText("Version:");

	txtVersion = new Text(grpFunctionBlock, SWT.BORDER);
	GridData gridTxtVersion = new GridData(SWT.FILL, SWT.CENTER, false,
	false, 1, 1);
	gridTxtVersion.widthHint = 411;
	txtVersion.setLayoutData(gridTxtVersion);
	txtVersion.addModifyListener(new ModifyListener() {
	public void modifyText(ModifyEvent e) {
	fbNameChanged();
	dialogChanged();
	}
	});

	Label lblDescription = new Label(grpFunctionBlock, SWT.NONE);
	lblDescription.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER, false,
	false, 1, 1));
	lblDescription.setText("Description:");

	txtDescription = new Text(grpFunctionBlock, SWT.BORDER \| SWT.V_SCROLL
	\| SWT.MULTI);
	GridData gridTxtDescription = new GridData(SWT.FILL, SWT.TOP, true,
	false, 1, 1);
	gridTxtDescription.heightHint = 53;
	txtDescription.setLayoutData(gridTxtDescription);

	Group grpProjectDetails = new Group(topContainer, SWT.NONE);
	grpProjectDetails.setLayout(new GridLayout(3, false));
	GridData gridGrpProjectDetails = new GridData(SWT.CENTER, SWT.CENTER,
	false, false, 1, 1);
	gridGrpProjectDetails.heightHint = 97;
	gridGrpProjectDetails.widthHint = 575;
	grpProjectDetails.setLayoutData(gridGrpProjectDetails);
	grpProjectDetails.setText("Project Details");

	Label lblProjectName = new Label(grpProjectDetails, SWT.NONE);
	GridData gridLblProjectName = new GridData(SWT.RIGHT, SWT.CENTER,
	false, false, 1, 1);
	gridLblProjectName.widthHint = 78;
	lblProjectName.setLayoutData(gridLblProjectName);
	lblProjectName.setText("Project Name:");

	txtProjectName = new Text(grpProjectDetails, SWT.BORDER);
	GridData gridTxtProjectName = new GridData(SWT.FILL, SWT.CENTER, false,
	false, 1, 1);
	gridTxtProjectName.widthHint = 370;
	txtProjectName.setLayoutData(gridTxtProjectName);
	txtProjectName.addModifyListener(new ModifyListener() {
	public void modifyText(ModifyEvent e) {
	projectNameChanged();
	dialogChanged();
	}
	});
	new Label(grpProjectDetails, SWT.NONE);

	Label lblLocation = new Label(grpProjectDetails, SWT.NONE);
	GridData gridLblLocation = new GridData(SWT.RIGHT, SWT.CENTER, false,
	false, 1, 1);
	gridLblLocation.widthHint = 48;
	lblLocation.setLayoutData(gridLblLocation);
	lblLocation.setText("Location:");

	txtWorkspaceLocation = new Text(grpProjectDetails, SWT.BORDER);
	txtWorkspaceLocation.setEditable(false);
	GridData gridTxtLocation = new GridData(SWT.LEFT, SWT.CENTER, false,
	false, 1, 1);
	gridTxtLocation.widthHint = 385;
	txtWorkspaceLocation.setLayoutData(gridTxtLocation);

	Button btnBrowse = new Button(grpProjectDetails, SWT.NONE);
	btnBrowse.setText("Browse...");
	btnBrowse.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent e) {
	handleBrowse(e);
	}

	});
	initialize();
	dialogChanged();
	setControl(topContainer);
	}

	private void initialize() {
	txtFunctionBlockName.setText(DEFAULT_FUNCTIONBLOCK_NAME);
	txtVersion.setText(FunctionBlockMetaData.FB_DEFAULT_VERSION);
	txtProjectName.setText(DEFAULT_FUNCTIONBLOCK_NAME);
	txtWorkspaceLocation.setText(getWorkspaceLocation() + "/"
	+ DEFAULT_FUNCTIONBLOCK_NAME);
	txtDescription
	.setText(DEFAULT_DESCRIPTION + DEFAULT_FUNCTIONBLOCK_NAME);

	}

	private void handleBrowse(SelectionEvent e) {
	DirectoryDialog directoryDialog = new DirectoryDialog(getShell());
	directoryDialog.setFilterPath(workspaceLocation);
	directoryDialog.setText("Workspace folder selection");
	directoryDialog.setMessage("Select a directory for this project");

	String selectedDirectory = directoryDialog.open();
	selectedDirectory = StringUtils.replace(selectedDirectory, "\\", "/");

	if (selectedDirectory != null) {
	workspaceLocation = selectedDirectory;
	updateWorkspaceLocationField(workspaceLocation);
	dialogChanged();
	}
	}

	private void projectNameChanged() {
	txtWorkspaceLocation.setText(getWorkspaceLocation() + "/"
	+ getProjectName());
	}

	public void dialogChanged() {
	if (this.validateProject()) {
	this.setErrorMessage(null);
	setPageComplete(true);
	} else {
	setPageComplete(false);
	}

	}

	private boolean validateProject() {
	boolean result = true;
	String projectName = getProjectName();
	String functionBlockName = getFunctionBlockName();
	String fbVersion = getFunctionBlockVersion();

	result &= validateStrExist(projectName,
	"Project name must be specified");
	result &= validateStrExist(functionBlockName,
	"Functionblock name must be specified");
	result &= validateExistingSameProjectName();

	// if(validateNoSpaceForLocation(projectLocation)){
	// setErrorMessage("Project location should not contain space(s).");
	// result = false;
	// }
	if (checkForRegexPattern(projectName, true, PROJECTNAME_REGEX)) {
	setErrorMessage("Project name should not contain special characters.");
	result = false;
	}

	if (checkForRegexPattern(functionBlockName, false, FUNCTIONBLOCK_REGEX)) {
	setErrorMessage("Functionblock name should start with a capital letter and must not contain any special characters.");
	result = false;
	}

	if (checkForRegexPattern(fbVersion, false, VERSION_REGEX)) {
	setErrorMessage("Version should follow pattern <MAJOR>.<MINOR>.<PATCH>");
	result = false;
	}

	return result;
	}

	private boolean checkForRegexPattern(String input, boolean expectedBool,
	String regexPattern) {
	return Pattern.compile(regexPattern).matcher(input).find() == expectedBool;
	}

	private boolean validateStrExist(String string, String errorMsgToBeShown) {
	if (Strings.isNullOrEmpty(string)) {
	this.setErrorMessage(errorMsgToBeShown);
	return false;
	}
	return true;
	}

	private boolean validateExistingSameProjectName() {
	IWorkspace workspace = ResourcesPlugin.getWorkspace();
	String projectName = getProjectName();

	if (workspace.getRoot().getProject(getProjectName()).exists()) {
	setErrorMessage("Project " + getProjectName() + " already exists.");
	return false;
	}

	IPath projectLocation = ResourcesPlugin.getWorkspace().getRoot()
	.getLocation().append(projectName);
	if (projectLocation.toFile().exists()) {
	try {
	String canonicalPath = projectLocation.toFile()
	.getCanonicalPath();
	projectLocation = new Path(canonicalPath);

	String existingName = projectLocation.lastSegment();
	if (!existingName.equals(projectName)) {
	setErrorMessage("Project " + getProjectName()
	+ " already exists.");
	return false;
	}
	} catch (IOException e) {
	}

	}

	return true;
	}

	public void updateWorkspaceLocationField(String directory) {
	txtWorkspaceLocation.setText(directory + "/" + getProjectName());
	}

	private void fbNameChanged() {
	String fbName = getFunctionBlockName();
	txtProjectName.setText(fbName);
	txtWorkspaceLocation.setText(getWorkspaceLocation() + "/" + fbName);
	txtDescription.setText(DEFAULT_DESCRIPTION + fbName);
	}

	public String getWorkspaceLocation() {
	IWorkspace workspace = ResourcesPlugin.getWorkspace();
	if (workspaceLocation == null) {
	workspaceLocation = workspace.getRoot().getLocation().toString();
	}
	return workspaceLocation;
	}

	public String getProjectName() {
	return txtProjectName.getText();
	}

	public String getFunctionBlockVersion() {
	return txtVersion.getText();
	}

	public String getFunctionBlockName() {
	return txtFunctionBlockName.getText();
	}

	public String getFunctionBlockDescription() {
	return txtDescription.getText();
	}

	}