org.eclipse.mylyn.reviews.r4e.ui/src/org/eclipse/mylyn/reviews/r4e/ui/internal/dialogs/ReviewGroupInputDialog.java

// $codepro.audit.disable com.instantiations.assist.eclipse.analysis.audit.rule.effectivejava.alwaysOverridetoString.alwaysOverrideToString, com.instantiations.assist.eclipse.analysis.audit.rule.effectivejava.constructorsOnlyInvokeFinalMethods, com.instantiations.assist.eclipse.analysis.deserializeabilitySecurity, com.instantiations.assist.eclipse.analysis.disallowReturnMutable, com.instantiations.assist.eclipse.analysis.enforceCloneableUsageSecurity, explicitThisUsage
/*******************************************************************************
 * Copyright (c) 2010, 2012 Ericsson AB 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
 * 
 * Description:
 * 
 * This class implements the dialog used to fill-in the Review Group element 
 * details.  This is a modal dialog
 * 
 * Contributors:
 *   Sebastien Dubois - Created for Mylyn Review R4E project
 *   
 ******************************************************************************/

package org.eclipse.mylyn.reviews.r4e.ui.internal.dialogs;

import java.util.ArrayList;
import java.util.List;

import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.jface.dialogs.ErrorDialog;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.dialogs.IInputValidator;
import org.eclipse.mylyn.reviews.r4e.ui.R4EUIPlugin;
import org.eclipse.mylyn.reviews.r4e.ui.internal.model.R4EUIModelController;
import org.eclipse.mylyn.reviews.r4e.ui.internal.model.R4EUIRuleSet;
import org.eclipse.mylyn.reviews.r4e.ui.internal.utils.EditableListWidget;
import org.eclipse.mylyn.reviews.r4e.ui.internal.utils.R4EUIConstants;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.CCombo;
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.Control;
import org.eclipse.swt.widgets.DirectoryDialog;
import org.eclipse.swt.widgets.Item;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;
import org.eclipse.ui.ISharedImages;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.forms.FormDialog;
import org.eclipse.ui.forms.IManagedForm;
import org.eclipse.ui.forms.events.ExpansionAdapter;
import org.eclipse.ui.forms.events.ExpansionEvent;
import org.eclipse.ui.forms.widgets.ExpandableComposite;
import org.eclipse.ui.forms.widgets.FormToolkit;
import org.eclipse.ui.forms.widgets.ScrolledForm;
import org.eclipse.ui.forms.widgets.Section;

/**
 * @author Sebastien Dubois
 * @version $Revision: 1.0 $
 */
public class ReviewGroupInputDialog extends FormDialog implements IReviewGroupInputDialog {

	// ------------------------------------------------------------------------
	// Constants
	// ------------------------------------------------------------------------

	/**
	 * Field ADD_REVIEW_GROUP_DIALOG_TITLE. (value is ""Enter Review Group details"")
	 */
	private static final String ADD_REVIEW_GROUP_DIALOG_TITLE = "Enter Review Group Details";

	/**
	 * Field ADD_REVIEW_GROUP_NAME_DIALOG_VALUE. (value is ""Enter the Review Group Name:"")
	 */
	private static final String ADD_REVIEW_GROUP_NAME_DIALOG_VALUE = "Group Name: ";

	/**
	 * Field ADD_REVIEW_GROUP_FOLDER_DIALOG_VALUE. (value is ""Enter the Review Group Folder:"")
	 */
	private static final String ADD_REVIEW_GROUP_FOLDER_DIALOG_VALUE = "Group Folder: ";

	/**
	 * Field ADD_REVIEW_GROUP_DESCRIPTION_DIALOG_VALUE. (value is ""Enter the Review Group Description:"")
	 */
	private static final String ADD_REVIEW_GROUP_DESCRIPTION_DIALOG_VALUE = "Group Description: ";

	/**
	 * Field ADD_REVIEW_GROUP_AVAILABLE_PROJECTS_DIALOG_VALUE. (value is ""Available Projects:"")
	 */
	private static final String ADD_REVIEW_GROUP_AVAILABLE_PROJECTS_DIALOG_VALUE = "Default Projects: ";

	/**
	 * Field ADD_REVIEW_GROUP_AVAILABLE_COMPONENTS_DIALOG_VALUE. (value is ""Available Components:"")
	 */
	private static final String ADD_REVIEW_GROUP_AVAILABLE_COMPONENTS_DIALOG_VALUE = "Default Components: ";

	/**
	 * Field ADD_REVIEW_GROUP_ENTRY_CRITERIA_DIALOG_VALUE. (value is ""Default Entry Criteria:"")
	 */
	private static final String ADD_REVIEW_GROUP_ENTRY_CRITERIA_DIALOG_VALUE = "Default Entry Criteria: ";

	/**
	 * Field ADD_RULE_SETS_DIALOG_VALUE. (value is ""Rule Sets: "")
	 */
	private static final String ADD_RULE_SETS_DIALOG_VALUE = "Rule Sets: ";

	/**
	 * Field BASIC_PARAMS_HEADER_MSG. (value is ""Enter the mandatory basic parameters for this Review Group"")
	 */
	private static final String BASIC_PARAMS_HEADER_MSG = "Enter the mandatory basic parameters for this Review Group";

	/**
	 * Field EXTRA_PARAMS_HEADER_MSG. (value is ""Enter the optional extra parameters for this Review Group"")
	 */
	private static final String EXTRA_PARAMS_HEADER_MSG = "Enter the optional extra parameters for this Review Group";

	// ------------------------------------------------------------------------
	// Member variables
	// ------------------------------------------------------------------------

	/**
	 * The input value; the empty string by default.
	 */
	private String fGroupNameValue = "";

	/**
	 * Input text widget.
	 */
	private Text fGroupNameInputTextField;

	/**
	 * Field fGroupFolderValue.
	 */
	private String fGroupFolderValue = "";

	/**
	 * Field fGroupFolderInputTextField.
	 */
	private Text fGroupFolderInputTextField = null;

	/**
	 * Field fGroupDescriptionValue.
	 */
	private String fGroupDescriptionValue = "";

	/**
	 * Field fGroupDescriptionInputTextField.
	 */
	private Text fGroupDescriptionInputTextField = null;

	/**
	 * Field fAvailableProjectsValues.
	 */
	private String[] fAvailableProjectsValues = null;

	/**
	 * Field fAvailableProjects.
	 */
	private EditableListWidget fAvailableProjects = null;

	/**
	 * Field fAvailableComponentsValues.
	 */
	private String[] fAvailableComponentsValues = null;

	/**
	 * Field fAvailableComponents.
	 */
	private EditableListWidget fAvailableComponents = null;

	/**
	 * Field fDefaultEntryCriteriaValue.
	 */
	private String fDefaultEntryCriteriaValue = "";

	/**
	 * Field fDefaultEntryCriteriaTextField.
	 */
	private Text fDefaultEntryCriteriaTextField = null;

	/**
	 * Field fRuleSets.
	 */
	private EditableListWidget fRuleSets = null;

	/**
	 * Field fRuleSetsValues.
	 */
	private String[] fRuleSetsValues = null;

	/**
	 * The input validator, or <code>null</code> if none.
	 */
	private final IInputValidator fValidator;

	// ------------------------------------------------------------------------
	// Constructors
	// ------------------------------------------------------------------------

	/**
	 * Constructor for R4EReviewGroupInputDialog.
	 * 
	 * @param aParentShell
	 *            Shell
	 */
	public ReviewGroupInputDialog(Shell aParentShell) {
		super(aParentShell);
		setBlockOnOpen(true);
		fValidator = new R4EInputValidator();
	}

	// ------------------------------------------------------------------------
	// Methods
	// ------------------------------------------------------------------------

	/**
	 * Method buttonPressed.
	 * 
	 * @param buttonId
	 *            int
	 * @see org.eclipse.jface.dialogs.Dialog#buttonPressed(int)
	 */
	@Override
	protected void buttonPressed(int buttonId) {
		if (buttonId == IDialogConstants.OK_ID) {
			//Validate Name
			String validateResult = validateEmptyInput(fGroupNameInputTextField);
			if (null != validateResult) {
				//Validate of input failed
				final ErrorDialog dialog = new ErrorDialog(null, R4EUIConstants.DIALOG_TITLE_ERROR,
						"No input given for Group Name", new Status(IStatus.ERROR, R4EUIPlugin.PLUGIN_ID, 0,
								validateResult, null), IStatus.ERROR);
				dialog.open();
				return;
			}
			fGroupNameValue = fGroupNameInputTextField.getText().trim();

			//Validate Folder
			validateResult = validateFolderInput(fGroupFolderInputTextField);
			if (null != validateResult) {
				//Validate of input failed
				final ErrorDialog dialog = new ErrorDialog(null, R4EUIConstants.DIALOG_TITLE_ERROR,
						"Invalid input folder", new Status(IStatus.ERROR, R4EUIPlugin.PLUGIN_ID, 0, validateResult,
								null), IStatus.ERROR);
				dialog.open();
				return;
			}

			validateResult = validateGroupExists(fGroupFolderInputTextField);
			if (null != validateResult) {
				//Validate of input failed
				final ErrorDialog dialog = new ErrorDialog(null, R4EUIConstants.DIALOG_TITLE_ERROR,
						"Invalid input folder", new Status(IStatus.ERROR, R4EUIPlugin.PLUGIN_ID, 0, validateResult,
								null), IStatus.ERROR);
				dialog.open();
				return;
			}
			fGroupFolderValue = fGroupFolderInputTextField.getText().trim();

			//Validate Projects (optional)
			final ArrayList<String> projectsValues = new ArrayList<String>();
			for (Item item : fAvailableProjects.getItems()) {
				validateResult = validateEmptyInput(item.getText());
				if (null == validateResult) {
					projectsValues.add(item.getText());
				}
			}
			fAvailableProjectsValues = projectsValues.toArray(new String[projectsValues.size()]);

			//Validate Components (optional)
			final ArrayList<String> componentsValues = new ArrayList<String>();
			for (Item item : fAvailableComponents.getItems()) {
				validateResult = validateEmptyInput(item.getText());
				if (null == validateResult) {
					componentsValues.add(item.getText());
				}
			}
			fAvailableComponentsValues = componentsValues.toArray(new String[componentsValues.size()]);

			//Validate Entry Criteria (optional)
			validateResult = validateEmptyInput(fDefaultEntryCriteriaTextField);
			if (null == validateResult) {
				fDefaultEntryCriteriaValue = fDefaultEntryCriteriaTextField.getText();
			}

			//Validate Rule Sets (optional)
			final ArrayList<String> ruleSetLocationsValues = new ArrayList<String>();
			for (Item item : fRuleSets.getItems()) {
				validateResult = validateEmptyInput(item.getText());
				if (null == validateResult) {
					ruleSetLocationsValues.add(item.getText());
				}
			}
			fRuleSetsValues = ruleSetLocationsValues.toArray(new String[ruleSetLocationsValues.size()]);

			fGroupDescriptionValue = fGroupDescriptionInputTextField.getText().trim();

		} else {
			fGroupNameValue = "";
			fGroupFolderValue = "";
			fGroupDescriptionValue = "";
			fDefaultEntryCriteriaValue = "";
		}
		super.buttonPressed(buttonId);
	}

	/**
	 * Method configureShell.
	 * 
	 * @param shell
	 *            Shell
	 * @see org.eclipse.jface.window.Window#configureShell(org.eclipse.swt.widgets.Shell)
	 */
	@Override
	protected void configureShell(Shell shell) {
		super.configureShell(shell);
		shell.setText(ADD_REVIEW_GROUP_DIALOG_TITLE);
		shell.setMinimumSize(R4EUIConstants.DIALOG_DEFAULT_WIDTH, R4EUIConstants.DIALOG_DEFAULT_HEIGHT);

	}

	/**
	 * Configures the dialog form and creates form content. Clients should override this method.
	 * 
	 * @param mform
	 *            the dialog form
	 */
	@Override
	protected void createFormContent(final IManagedForm mform) {

		final FormToolkit toolkit = mform.getToolkit();
		final ScrolledForm sform = mform.getForm();
		final Composite composite = sform.getBody();
		composite.setLayout(new GridLayout());
		GridData textGridData = null;

		//Basic parameters section
		final Section basicSection = toolkit.createSection(composite, Section.DESCRIPTION
				| ExpandableComposite.TITLE_BAR | ExpandableComposite.TWISTIE | ExpandableComposite.EXPANDED);
		basicSection.setLayout(new GridLayout());
		basicSection.setLayoutData(new GridData(GridData.FILL, GridData.FILL, true, true));
		basicSection.setText(R4EUIConstants.BASIC_PARAMS_HEADER);
		basicSection.setDescription(BASIC_PARAMS_HEADER_MSG);
		basicSection.addExpansionListener(new ExpansionAdapter() {
			@Override
			public void expansionStateChanged(ExpansionEvent e) {
				getShell().setSize(getShell().computeSize(SWT.DEFAULT, SWT.DEFAULT));
			}
		});

		final Composite basicSectionClient = toolkit.createComposite(basicSection);
		basicSectionClient.setLayout(new GridLayout(4, false));
		basicSectionClient.setLayoutData(new GridData(GridData.FILL, GridData.FILL, true, true));
		basicSection.setClient(basicSectionClient);

		//Review Group Name
		Label label = toolkit.createLabel(basicSectionClient, ADD_REVIEW_GROUP_NAME_DIALOG_VALUE);
		label.setToolTipText(R4EUIConstants.REVIEW_GROUP_NAME_TOOLTIP);
		label.setLayoutData(new GridData(GridData.BEGINNING, GridData.BEGINNING, false, false));
		fGroupNameInputTextField = toolkit.createText(basicSectionClient, "", SWT.SINGLE | SWT.BORDER);
		textGridData = new GridData(GridData.FILL, GridData.FILL, true, false);
		textGridData.horizontalSpan = 3;
		fGroupNameInputTextField.setToolTipText(R4EUIConstants.REVIEW_GROUP_NAME_TOOLTIP);
		fGroupNameInputTextField.setLayoutData(textGridData);
		fGroupNameInputTextField.addModifyListener(new ModifyListener() {
			public void modifyText(ModifyEvent e) {
				// ignore
				if (fGroupNameInputTextField.getText().length() > 0
						&& fGroupFolderInputTextField.getText().length() > 0
						&& fGroupDescriptionInputTextField.getText().length() > 0) {
					getButton(IDialogConstants.OK_ID).setEnabled(true);
				} else {
					getButton(IDialogConstants.OK_ID).setEnabled(false);
				}
			}
		});

		//Group Folder
		label = toolkit.createLabel(basicSectionClient, ADD_REVIEW_GROUP_FOLDER_DIALOG_VALUE);
		label.setToolTipText(R4EUIConstants.REVIEW_GROUP_FILE_PATH_TOOLTIP);
		label.setLayoutData(new GridData(GridData.BEGINNING, GridData.BEGINNING, false, false));
		fGroupFolderInputTextField = toolkit.createText(basicSectionClient, "", SWT.SINGLE | SWT.BORDER);
		final GridData folderTextData = new GridData(GridData.FILL, GridData.BEGINNING, true, false);
		folderTextData.horizontalSpan = 2;
		fGroupFolderInputTextField.setToolTipText(R4EUIConstants.REVIEW_GROUP_FILE_PATH_TOOLTIP);
		fGroupFolderInputTextField.setLayoutData(folderTextData);
		final Button folderButton = toolkit.createButton(basicSectionClient, "", SWT.NONE);
		folderButton.setImage(PlatformUI.getWorkbench()
				.getSharedImages()
				.getImageDescriptor(ISharedImages.IMG_OBJ_FOLDER)
				.createImage()); // $codepro.audit.disable methodChainLength
		textGridData = new GridData(GridData.BEGINNING, GridData.BEGINNING, false, false);
		textGridData.horizontalSpan = 1;
		folderButton.setToolTipText(R4EUIConstants.REVIEW_GROUP_FOLDER_TOOLTIP);
		folderButton.setLayoutData(textGridData);
		folderButton.addSelectionListener(new SelectionAdapter() { // $codepro.audit.disable com.instantiations.assist.eclipse.analysis.avoidInnerClasses
			@SuppressWarnings("synthetic-access")
			@Override
			public void widgetSelected(SelectionEvent event) {
				final String result = folderButtonPressed();
				if (null == result) {
					fGroupFolderInputTextField.setText("");
				} else {
					fGroupFolderInputTextField.setText(result);
				}
			}
		});
		fGroupFolderInputTextField.addModifyListener(new ModifyListener() {
			public void modifyText(ModifyEvent e) {
				// ignore
				if (fGroupNameInputTextField.getText().length() > 0
						&& fGroupFolderInputTextField.getText().length() > 0
						&& fGroupDescriptionInputTextField.getText().length() > 0) {
					getButton(IDialogConstants.OK_ID).setEnabled(true);
				} else {
					getButton(IDialogConstants.OK_ID).setEnabled(false);
				}
			}
		});

		//Group Description
		label = toolkit.createLabel(basicSectionClient, ADD_REVIEW_GROUP_DESCRIPTION_DIALOG_VALUE);
		label.setToolTipText(R4EUIConstants.REVIEW_GROUP_DESCRIPTION_TOOLTIP);
		label.setLayoutData(new GridData(GridData.BEGINNING, GridData.BEGINNING, false, false));
		fGroupDescriptionInputTextField = toolkit.createText(basicSectionClient, "", SWT.MULTI | SWT.V_SCROLL
				| SWT.BORDER);
		textGridData = new GridData(GridData.FILL, GridData.FILL, true, false);
		textGridData.horizontalSpan = 3;
		textGridData.heightHint = fGroupNameInputTextField.getLineHeight() * 3;
		fGroupDescriptionInputTextField.setToolTipText(R4EUIConstants.REVIEW_GROUP_DESCRIPTION_TOOLTIP);
		fGroupDescriptionInputTextField.setLayoutData(textGridData);
		fGroupDescriptionInputTextField.addModifyListener(new ModifyListener() {
			public void modifyText(ModifyEvent e) {
				// ignore
				if (fGroupNameInputTextField.getText().length() > 0
						&& fGroupFolderInputTextField.getText().length() > 0
						&& fGroupDescriptionInputTextField.getText().length() > 0) {
					getButton(IDialogConstants.OK_ID).setEnabled(true);
				} else {
					getButton(IDialogConstants.OK_ID).setEnabled(false);
				}
			}
		});

		//Extra parameters section
		final Section extraSection = toolkit.createSection(composite, Section.DESCRIPTION
				| ExpandableComposite.TITLE_BAR | ExpandableComposite.TWISTIE);
		extraSection.setLayout(new GridLayout());
		extraSection.setLayoutData(new GridData(GridData.FILL, GridData.FILL, true, true));
		extraSection.setText(R4EUIConstants.EXTRA_PARAMS_HEADER);
		extraSection.setDescription(EXTRA_PARAMS_HEADER_MSG);
		extraSection.addExpansionListener(new ExpansionAdapter() {
			@Override
			public void expansionStateChanged(ExpansionEvent e) {
				getShell().setSize(getShell().computeSize(SWT.DEFAULT, SWT.DEFAULT));
			}
		});

		final Composite extraSectionClient = toolkit.createComposite(extraSection);
		extraSectionClient.setLayout(new GridLayout(4, false));
		extraSectionClient.setLayoutData(new GridData(GridData.FILL, GridData.FILL, true, true));
		extraSection.setClient(extraSectionClient);

		//Available Projects
		label = toolkit.createLabel(extraSectionClient, ADD_REVIEW_GROUP_AVAILABLE_PROJECTS_DIALOG_VALUE);
		label.setToolTipText(R4EUIConstants.REVIEW_GROUP_PROJECTS_TOOLTIP);
		label.setLayoutData(new GridData(GridData.BEGINNING, GridData.BEGINNING, false, false));
		textGridData = new GridData(GridData.FILL, GridData.FILL, true, false);
		textGridData.horizontalSpan = 3;
		fAvailableProjects = new EditableListWidget(toolkit, extraSectionClient, textGridData, null, 0, Text.class,
				null);
		fAvailableProjects.setToolTipText(R4EUIConstants.REVIEW_GROUP_PROJECTS_TOOLTIP);

		//Available Components
		label = toolkit.createLabel(extraSectionClient, ADD_REVIEW_GROUP_AVAILABLE_COMPONENTS_DIALOG_VALUE);
		label.setToolTipText(R4EUIConstants.REVIEW_GROUP_COMPONENTS_TOOLTIP);
		label.setLayoutData(new GridData(GridData.BEGINNING, GridData.BEGINNING, false, false));
		textGridData = new GridData(GridData.FILL, GridData.FILL, true, false);
		textGridData.horizontalSpan = 3;
		fAvailableComponents = new EditableListWidget(toolkit, extraSectionClient, textGridData, null, 0, Text.class,
				null);
		fAvailableComponents.setToolTipText(R4EUIConstants.REVIEW_GROUP_COMPONENTS_TOOLTIP);

		// Default Entry Criteria
		label = toolkit.createLabel(extraSectionClient, ADD_REVIEW_GROUP_ENTRY_CRITERIA_DIALOG_VALUE);
		label.setToolTipText(R4EUIConstants.REVIEW_GROUP_ENTRY_CRITERIA_TOOLTIP);
		label.setLayoutData(new GridData(GridData.BEGINNING, GridData.BEGINNING, false, false));
		fDefaultEntryCriteriaTextField = toolkit.createText(extraSectionClient, "", SWT.MULTI | SWT.V_SCROLL
				| SWT.BORDER);
		textGridData = new GridData(GridData.FILL, GridData.FILL, true, false);
		textGridData.horizontalSpan = 3;
		textGridData.heightHint = fGroupNameInputTextField.getLineHeight() * 3;
		fDefaultEntryCriteriaTextField.setToolTipText(R4EUIConstants.REVIEW_GROUP_ENTRY_CRITERIA_TOOLTIP);
		fDefaultEntryCriteriaTextField.setLayoutData(textGridData);

		//RuleSet references
		label = toolkit.createLabel(extraSectionClient, ADD_RULE_SETS_DIALOG_VALUE);
		label.setToolTipText(R4EUIConstants.REVIEW_GROUP_RULESET_REFERENCE_TOOLTIP);
		label.setLayoutData(new GridData(GridData.BEGINNING, GridData.BEGINNING, false, false));
		final List<R4EUIRuleSet> uiRuleSets = (R4EUIModelController.getRootElement()).getRuleSets();
		final List<String> ruleLocations = new ArrayList<String>();
		for (R4EUIRuleSet ruleSet : uiRuleSets) {
			ruleLocations.add(ruleSet.getRuleSet().getName());
		}
		textGridData = new GridData(GridData.FILL, GridData.FILL, true, false);
		textGridData.horizontalSpan = 3;
		fRuleSets = new EditableListWidget(toolkit, extraSectionClient, textGridData, null, 0, CCombo.class,
				ruleLocations.toArray(new String[ruleLocations.size()]));
		if (0 == ruleLocations.size()) {
			fRuleSets.setEnabled(false);
		}
		fRuleSets.setToolTipText(R4EUIConstants.REVIEW_GROUP_RULESET_REFERENCE_TOOLTIP);
	}

	/**
	 * Configures the button bar.
	 * 
	 * @param parent
	 *            the parent composite
	 * @return Control
	 */
	@Override
	protected Control createButtonBar(Composite parent) {
		final Control bar = super.createButtonBar(parent);
		getButton(IDialogConstants.OK_ID).setEnabled(false);
		return bar;
	}

	/**
	 * Method folderButtonPressed.
	 * 
	 * @return String
	 */
	protected String folderButtonPressed() {
		//Open folder dialog
		final DirectoryDialog dialog = new DirectoryDialog(getShell(), SWT.SHEET);
		dialog.setMessage("Select Folder...");
		String dir = dialog.open();
		if (null != dir) {
			dir = dir.trim();
			if (0 == dir.length()) {
				return null;
			}
		}
		return dir;
	}

	/**
	 * Method isResizable.
	 * 
	 * @return boolean * @see org.eclipse.jface.dialogs.Dialog#isResizable()
	 */
	@Override
	protected boolean isResizable() {
		return true;
	}

	/**
	 * Returns the string typed into this input dialog.
	 * 
	 * @return the group name input string * @see
	 *         org.eclipse.mylyn.reviews.r4e.ui.internal.dialogs.IReviewGroupInputDialog#getGroupNameValue()
	 */
	public String getGroupNameValue() {
		return fGroupNameValue;
	}

	/**
	 * Returns the string typed into this input dialog.
	 * 
	 * @return the group folder input string * @see
	 *         org.eclipse.mylyn.reviews.r4e.ui.internal.dialogs.IReviewGroupInputDialog#getGroupFolderValue()
	 */
	public String getGroupFolderValue() {
		return fGroupFolderValue;
	}

	/**
	 * Returns the string typed into this input dialog.
	 * 
	 * @return the group description input string * @see
	 *         org.eclipse.mylyn.reviews.r4e.ui.internal.dialogs.IReviewGroupInputDialog#getGroupDescriptionValue()
	 */
	public String getGroupDescriptionValue() {
		return fGroupDescriptionValue;
	}

	/**
	 * Returns the strings typed into this input dialog.
	 * 
	 * @return the Available projects input strings * @see
	 *         org.eclipse.mylyn.reviews.r4e.ui.internal.dialogs.IReviewGroupInputDialog#getAvailableProjectsValues()
	 */
	public String[] getAvailableProjectsValues() {
		return fAvailableProjectsValues;
	}

	/**
	 * Returns the strings typed into this input dialog.
	 * 
	 * @return the Available components input strings * @see
	 *         org.eclipse.mylyn.reviews.r4e.ui.internal.dialogs.IReviewGroupInputDialog#getAvailableComponentsValues()
	 */
	public String[] getAvailableComponentsValues() {
		return fAvailableComponentsValues;
	}

	/**
	 * Returns the string typed into this input dialog.
	 * 
	 * @return the Default entry criteria input string * @see
	 *         org.eclipse.mylyn.reviews.r4e.ui.internal.dialogs.IReviewGroupInputDialog#getDefaultEntryCriteriaValue()
	 */
	public String getDefaultEntryCriteriaValue() {
		return fDefaultEntryCriteriaValue;
	}

	/**
	 * Returns the strings typed into this input dialog.
	 * 
	 * @return the Rule Set input strings * @see
	 *         org.eclipse.mylyn.reviews.r4e.ui.internal.dialogs.IReviewGroupInputDialog#getRuleSetValues()
	 */
	public String[] getRuleSetValues() {
		return fRuleSetsValues;
	}

	/**
	 * Validates the input.
	 * <p>
	 * The default implementation of this framework method delegates the request to the supplied input validator object;
	 * if it finds the input invalid, the error message is displayed in the dialog's message line. This hook method is
	 * called whenever the text changes in the input field.
	 * </p>
	 * 
	 * @param aText
	 *            Text
	 * @return String (null = valid, or error string)
	 */
	protected String validateFolderInput(Text aText) {
		return ((R4EInputValidator) fValidator).isFolderValid(aText.getText());
	}

	/**
	 * Method validateGroupExists.
	 * 
	 * @param aText
	 *            Text
	 * @return String (null = valid, or error string)
	 */
	private String validateGroupExists(Text aText) {
		return ((R4EInputValidator) fValidator).isFolderEmpty(aText.getText());
	}

	/**
	 * Method validateEmptyInput.
	 * 
	 * @param aText
	 *            Text
	 * @return String (null = valid, or error string)
	 */
	private String validateEmptyInput(Text aText) {
		return fValidator.isValid(aText.getText());
	}

	/**
	 * Method validateEmptyInput.
	 * 
	 * @param aString
	 *            String
	 * @return String (null = valid, or error string)
	 */
	private String validateEmptyInput(String aString) {
		return fValidator.isValid(aString);
	}
}