org.eclipse.modisco.infra.discovery.ui/src/org/eclipse/modisco/infra/discovery/ui/internal/dialogs/GenericParametersDialog.java - modisco/org.eclipse.modisco - Git at Google

 /*******************************************************************************
  * Copyright (c) 2011 Mia-Software.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v2.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v20.html
  *
  * Contributors:
  *    Nicolas Bros (Mia-Software) - initial API and implementation
  *******************************************************************************/
 package org.eclipse.modisco.infra.discovery.ui.internal.dialogs;

 import java.util.List;

 import org.eclipse.core.runtime.IStatus;
 import org.eclipse.core.runtime.Status;
 import org.eclipse.emf.common.util.EList;
 import org.eclipse.jface.dialogs.IDialogConstants;
 import org.eclipse.jface.dialogs.IDialogSettings;
 import org.eclipse.jface.dialogs.TitleAreaDialog;
 import org.eclipse.jface.viewers.ILabelProviderListener;
 import org.eclipse.jface.viewers.IStructuredContentProvider;
 import org.eclipse.jface.viewers.IStructuredSelection;
 import org.eclipse.jface.viewers.ITableLabelProvider;
 import org.eclipse.jface.viewers.TableViewer;
 import org.eclipse.jface.viewers.TableViewerColumn;
 import org.eclipse.jface.viewers.Viewer;
 import org.eclipse.jface.window.ToolTip;
 import org.eclipse.modisco.facet.widgets.celleditors.AbstractCellEditorComposite;
 import org.eclipse.modisco.facet.widgets.celleditors.IValidator;
 import org.eclipse.modisco.infra.common.core.logging.MoDiscoLogger;
 import org.eclipse.modisco.infra.discovery.catalog.DiscovererParameter;
 import org.eclipse.modisco.infra.discovery.launch.LaunchConfiguration;
 import org.eclipse.modisco.infra.discovery.launch.ParameterValue;
 import org.eclipse.modisco.infra.discovery.ui.Activator;
 import org.eclipse.modisco.infra.discovery.ui.Messages;
 import org.eclipse.modisco.infra.discovery.ui.internal.util.DiscovererParameterDescriptionTooltip;
 import org.eclipse.osgi.util.NLS;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.events.KeyAdapter;
 import org.eclipse.swt.events.KeyEvent;
 import org.eclipse.swt.graphics.Image;
 import org.eclipse.swt.graphics.Point;
 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.Event;
 import org.eclipse.swt.widgets.Label;
 import org.eclipse.swt.widgets.Shell;
 import org.eclipse.swt.widgets.Table;
 import org.eclipse.swt.widgets.TableColumn;
 import org.eclipse.swt.widgets.TableItem;

 /** A dialog that presents fields to enter "in" parameters for a discoverer */
 public class GenericParametersDialog extends TitleAreaDialog {

 	private static final String NAME_COLUMN_PROPERTY = "name"; //$NON-NLS-1$
 	private static final String VALUE_COLUMN_PROPERTY = "value"; //$NON-NLS-1$
 	private static final String TYPE_COLUMN_PROPERTY = "type"; //$NON-NLS-1$
 	private static final int NAME_COLUMN_INDEX = 0;
 	private static final int VALUE_COLUMN_INDEX = 1;
 	private static final int TYPE_COLUMN_INDEX = 2;
 	private static final int DIALOG_WIDTH = 725;
 	private static final int DIALOG_HEIGHT = 455;

 	private static final int NAME_COLUMN_WIDTH = 150;
 	private static final int VALUE_COLUMN_WIDTH = 250;
 	private static final int TYPE_COLUMN_WIDTH = 250;
 	private static final int PARAMETERS_TABLE_HEIGHT = 120;

 	private final List<DiscovererParameter> parameters;
 	private final Object[] fParameterValues;
 	private final AbstractCellEditorComposite<?>[] cellEditors;
 	private final String discovererName;
 	private TableViewer tableViewerParameters;
 	private Table tableParameters;
 	private Image titleImage;
 	private Button checkBoxOpenModel;
 	private boolean openModel;
 	private final boolean showOpenModelCheckbox;

 	private boolean cellEditorOpened = false;
 	private final LaunchConfiguration configurationModel;

 	protected static final class ParametersTableContentProvider implements
 			IStructuredContentProvider {
 		public void inputChanged(final Viewer viewer, final Object oldInput, final Object newInput) {
 			//
 		}

 		public void dispose() {
 			//
 		}

 		public Object[] getElements(final Object inputElement) {
 			if (inputElement instanceof List) {
 				List<?> list = (List<?>) inputElement;
 				return list.toArray();
 			}
 			throw new IllegalArgumentException();
 		}
 	}

 	protected final class ParametersTableLabelProvider implements ITableLabelProvider {
 		public String getColumnText(final Object element, final int columnIndex) {
 			if (element instanceof DiscovererParameter) {
 				DiscovererParameter param = (DiscovererParameter) element;
 				switch (columnIndex) {
 				case GenericParametersDialog.NAME_COLUMN_INDEX:
 					if (param.isRequiredInput()) {
 						return param.getId() + "*"; //$NON-NLS-1$
 					}
 					return param.getId();
 				case GenericParametersDialog.VALUE_COLUMN_INDEX:
 					Object parameterValue = GenericParametersDialog.this.fParameterValues[GenericParametersDialog.this.parameters
 							.indexOf(element)];
 					if (parameterValue == null) {
 						return ""; //$NON-NLS-1$
 					}
 					return parameterValue.toString();
 				case GenericParametersDialog.TYPE_COLUMN_INDEX:
 					return param.getType().getName();
 				default:
 					MoDiscoLogger.logError("unhandled case", Activator.getDefault()); //$NON-NLS-1$
 				}
 			}
 			return null;
 		}

 		public Image getColumnImage(final Object element, final int columnIndex) {
 			return null;
 		}

 		public boolean isLabelProperty(final Object element, final String property) {
 			return true;
 		}

 		public void dispose() {
 			//
 		}

 		public void addListener(final ILabelProviderListener listener) {
 			//
 		}

 		public void removeListener(final ILabelProviderListener listener) {
 			//
 		}
 	}

 	/**
 	 * Create the dialog.
 	 *
 	 * @param parentShell
 	 * @param parameters
 	 * @param discovererName
 	 * @param showOpenModelCheckbox
 	 * @param configurationModel
 	 *            contains the parameters saved from the last discovery
 	 */
 	public GenericParametersDialog(final Shell parentShell,
 			final List<DiscovererParameter> parameters, final String discovererName,
 			final boolean showOpenModelCheckbox, final LaunchConfiguration configurationModel) {
 		super(parentShell);
 		this.parameters = parameters;
 		this.discovererName = discovererName;
 		this.showOpenModelCheckbox = showOpenModelCheckbox;
 		this.configurationModel = configurationModel;
 		this.fParameterValues = initializeParameterValues();
 		this.cellEditors = new AbstractCellEditorComposite<?>[parameters.size()];
 		setTitleImage(getTitleImage());
 	}

 	private Object[] initializeParameterValues() {
 		Object[] values = new Object[this.parameters.size()];
 		EList<ParameterValue> parameterValues = this.configurationModel.getParameterValues();
 		for (ParameterValue parameterValue : parameterValues) {
 			DiscovererParameter parameter = parameterValue.getParameter();
 			int parameterIndex = getParameterIndex(parameter);
 			if (parameterIndex != -1) {
 				values[parameterIndex] = parameterValue.getValue();
 			}
 		}
 		return values;
 	}

 	private int getParameterIndex(final DiscovererParameter parameter) {
 		for (int i = 0; i < this.parameters.size(); i++) {
 			DiscovererParameter param = this.parameters.get(i);
 			if (param.getId().equals(parameter.getId())) {
 				return i;
 			}
 		}
 		return -1;
 	}

 	private Image getTitleImage() {
 		if (this.titleImage == null) {
 			this.titleImage = Activator
 					.getImageDescriptor("icons/discoverer_banner.png").createImage(); //$NON-NLS-1$
 		}
 		return this.titleImage;
 	}

 	/**
 	 * Create the contents of the dialog.
 	 *
 	 * @param parent
 	 */
 	@Override
 	protected Control createDialogArea(final Composite parent) {
 		setTitle(Messages.GenericParametersDialog_title);

 		Composite container = new Composite(parent, SWT.NONE);
 		GridLayout layout = new GridLayout(2, false);
 		container.setLayout(layout);
 		container.setLayoutData(new GridData(GridData.FILL_BOTH));
 		container.setFont(parent.getFont());

 		createParametersTable(container);

 		Label lblRequired = new Label(container, SWT.NONE);
 		lblRequired.setLayoutData(new GridData(SWT.LEFT, SWT.CENTER, false, false, 2, 1));
 		lblRequired.setText(Messages.GenericParametersDialog_marksRequiredParam);

 		if (this.showOpenModelCheckbox) {
 			this.checkBoxOpenModel = new Button(container, SWT.CHECK);
 			this.checkBoxOpenModel.setLayoutData(new GridData(SWT.LEFT, SWT.CENTER, false, false,
 					2, 1));
 			this.checkBoxOpenModel.setText(Messages.GenericParametersDialog_openModelEditor);
 			this.checkBoxOpenModel
 					.setSelection(this.configurationModel.isOpenModelAfterDiscovery());
 		}

 		return container;
 	}

 	private void createParametersTable(final Composite container) {
 		this.tableViewerParameters = new TableViewer(container, SWT.MULTI | SWT.BORDER
 				| SWT.FULL_SELECTION);
 		this.tableParameters = this.tableViewerParameters.getTable();
 		this.tableParameters.setLinesVisible(true);
 		this.tableParameters.setHeaderVisible(true);
 		GridData gdTableParameters = new GridData(SWT.FILL, SWT.FILL, true, true, 2, 1);
 		gdTableParameters.heightHint = GenericParametersDialog.PARAMETERS_TABLE_HEIGHT;
 		this.tableParameters.setLayoutData(gdTableParameters);

 		TableViewerColumn tableViewerColumnName = new TableViewerColumn(this.tableViewerParameters,
 				SWT.NONE);
 		TableColumn tableColumnName = tableViewerColumnName.getColumn();
 		tableColumnName.setWidth(GenericParametersDialog.NAME_COLUMN_WIDTH);
 		tableColumnName.setText(Messages.GenericParametersDialog_name);

 		TableViewerColumn tableViewerColumnValue = new TableViewerColumn(
 				this.tableViewerParameters, SWT.NONE);
 		TableColumn tableColumnValue = tableViewerColumnValue.getColumn();
 		tableColumnValue.setWidth(GenericParametersDialog.VALUE_COLUMN_WIDTH);
 		tableColumnValue.setText(Messages.GenericParametersDialog_value);
 		tableViewerColumnValue.setEditingSupport(new ParameterValueEditingSupport(
 				this.tableViewerParameters, this));

 		TableViewerColumn tableViewerColumnType = new TableViewerColumn(this.tableViewerParameters,
 				SWT.NONE);
 		TableColumn tableColumnType = tableViewerColumnType.getColumn();
 		tableColumnType.setWidth(GenericParametersDialog.TYPE_COLUMN_WIDTH);
 		tableColumnType.setText(Messages.GenericParametersDialog_type);

 		this.tableViewerParameters.setColumnProperties(new String[] {
 				GenericParametersDialog.NAME_COLUMN_PROPERTY,
 				GenericParametersDialog.VALUE_COLUMN_PROPERTY,
 				GenericParametersDialog.TYPE_COLUMN_PROPERTY });

 		this.tableViewerParameters.setContentProvider(new ParametersTableContentProvider());
 		this.tableViewerParameters.setLabelProvider(new ParametersTableLabelProvider());
 		this.tableViewerParameters.setInput(this.parameters);

 		tableColumnName.pack();

 		this.tableViewerParameters.getTable().addKeyListener(new KeyAdapter() {
 			@Override
 			public void keyPressed(final KeyEvent e) {
 				if (e.keyCode == SWT.F2) {
 					IStructuredSelection selection = (IStructuredSelection) GenericParametersDialog.this.tableViewerParameters
 							.getSelection();
 					Object firstElement = selection.getFirstElement();
 					GenericParametersDialog.this.tableViewerParameters.editElement(firstElement,
 							GenericParametersDialog.VALUE_COLUMN_INDEX);
 				}
 			}
 		});

 		createDescriptionTooltip(this.tableParameters);
 	}

 	private static void createDescriptionTooltip(final Table table) {
 		ToolTip tooltip = new DiscovererParameterDescriptionTooltip(table) {
 			@Override
 			protected DiscovererParameter getDiscovererParameterAt(final Event event) {
 				TableItem item = table.getItem(new Point(event.x, event.y));
 				if (item == null) {
 					return null;
 				}
 				DiscovererParameter parameter = (DiscovererParameter) item.getData();
 				return parameter;
 			}
 		};
 		tooltip.activate();
 	}

 	public void validate(final boolean showErrors) {
 		for (int i = 0; i < this.parameters.size(); i++) {
 			Object value = this.fParameterValues[i];
 			DiscovererParameter param = this.parameters.get(i);
 			if (value == null && param.isRequiredInput()) {
 				if (showErrors) {
 					setErrorMessage(NLS.bind(Messages.GenericParametersDialog_fieldIsEmpty,
 							param.getId()));
 				}
 				getButton(IDialogConstants.OK_ID).setEnabled(false);
 				return;
 			}

 			if (this.cellEditors[i] != null) {
 				IValidator validator = this.cellEditors[i].getValidator();
 				IStatus status = validator.validate(this.cellEditors[i].getValue());
 				if (status != Status.OK_STATUS) {
 					if (showErrors) {
 						String statusMessage = status.getMessage();
 						String msg;
 						if (statusMessage != null && statusMessage.trim().length() > 0) {
 							msg = NLS.bind(Messages.GenericParametersDialog_invalidField1,
 									param.getId(), statusMessage);
 						} else {
 							msg = NLS.bind(Messages.GenericParametersDialog_invalidField2,
 									param.getId());
 						}
 						setErrorMessage(msg);
 					}
 					getButton(IDialogConstants.OK_ID).setEnabled(false);
 					return;
 				}
 			}
 		}
 		setErrorMessage(null);
 		if (this.cellEditorOpened) {
 			getButton(IDialogConstants.OK_ID).setEnabled(false);
 		} else {
 			getButton(IDialogConstants.OK_ID).setEnabled(true);
 		}
 	}

 	/**
 	 * Create contents of the button bar.
 	 *
 	 * @param parent
 	 */
 	@Override
 	protected void createButtonsForButtonBar(final Composite parent) {
 		createButton(parent, IDialogConstants.OK_ID, "&" + IDialogConstants.OK_LABEL, true); //$NON-NLS-1$
 		createButton(parent, IDialogConstants.CANCEL_ID, IDialogConstants.CANCEL_LABEL, false);
 		validate(false);
 	}

 	@Override
 	protected boolean isResizable() {
 		return true;
 	}

 	@Override
 	protected IDialogSettings getDialogBoundsSettings() {
 		// save settings per discoverer
 		final String sectionName = this.getClass().getName() + ":" + this.discovererName; //$NON-NLS-1$
 		IDialogSettings settings = Activator.getDefault().getDialogSettings();
 		IDialogSettings section = settings.getSection(sectionName);
 		if (section == null) {
 			section = settings.addNewSection(sectionName);
 			section.put("DIALOG_WIDTH", GenericParametersDialog.DIALOG_WIDTH); //$NON-NLS-1$
 			section.put("DIALOG_HEIGHT", GenericParametersDialog.DIALOG_HEIGHT); //$NON-NLS-1$
 		}
 		return section;
 	}

 	@Override
 	protected void configureShell(final Shell newShell) {
 		super.configureShell(newShell);
 		newShell.setText(NLS.bind(Messages.GenericParametersDialog_shellText, this.discovererName));

 	}

 	public Object[] getParameterValues() {
 		return this.fParameterValues;
 	}

 	@Override
 	public boolean isHelpAvailable() {
 		return false;
 	}

 	public Object getParameterValue(final DiscovererParameter element) {
 		return this.fParameterValues[this.parameters.indexOf(element)];

 	}

 	public void setParameterValue(final DiscovererParameter element, final Object value) {
 		this.fParameterValues[this.parameters.indexOf(element)] = value;
 	}

 	@Override
 	public boolean close() {
 		if (this.checkBoxOpenModel != null) {
 			this.openModel = this.checkBoxOpenModel.getSelection();
 		} else {
 			this.openModel = false;
 		}
 		boolean closed = super.close();
 		this.titleImage.dispose();
 		return closed;
 	}

 	public boolean isOpenModel() {
 		return this.openModel;
 	}

 	public boolean isCellEditorOpened() {
 		return this.cellEditorOpened;
 	}

 	public void setCellEditorOpened(final boolean value) {
 		this.cellEditorOpened = value;
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2011 Mia-Software.
	* All rights reserved. This program and the accompanying materials
	* are made available under the terms of the Eclipse Public License v2.0
	* which accompanies this distribution, and is available at
	* http://www.eclipse.org/legal/epl-v20.html
	*
	* Contributors:
	* Nicolas Bros (Mia-Software) - initial API and implementation
	*******************************************************************************/
	package org.eclipse.modisco.infra.discovery.ui.internal.dialogs;

	import java.util.List;

	import org.eclipse.core.runtime.IStatus;
	import org.eclipse.core.runtime.Status;
	import org.eclipse.emf.common.util.EList;
	import org.eclipse.jface.dialogs.IDialogConstants;
	import org.eclipse.jface.dialogs.IDialogSettings;
	import org.eclipse.jface.dialogs.TitleAreaDialog;
	import org.eclipse.jface.viewers.ILabelProviderListener;
	import org.eclipse.jface.viewers.IStructuredContentProvider;
	import org.eclipse.jface.viewers.IStructuredSelection;
	import org.eclipse.jface.viewers.ITableLabelProvider;
	import org.eclipse.jface.viewers.TableViewer;
	import org.eclipse.jface.viewers.TableViewerColumn;
	import org.eclipse.jface.viewers.Viewer;
	import org.eclipse.jface.window.ToolTip;
	import org.eclipse.modisco.facet.widgets.celleditors.AbstractCellEditorComposite;
	import org.eclipse.modisco.facet.widgets.celleditors.IValidator;
	import org.eclipse.modisco.infra.common.core.logging.MoDiscoLogger;
	import org.eclipse.modisco.infra.discovery.catalog.DiscovererParameter;
	import org.eclipse.modisco.infra.discovery.launch.LaunchConfiguration;
	import org.eclipse.modisco.infra.discovery.launch.ParameterValue;
	import org.eclipse.modisco.infra.discovery.ui.Activator;
	import org.eclipse.modisco.infra.discovery.ui.Messages;
	import org.eclipse.modisco.infra.discovery.ui.internal.util.DiscovererParameterDescriptionTooltip;
	import org.eclipse.osgi.util.NLS;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.events.KeyAdapter;
	import org.eclipse.swt.events.KeyEvent;
	import org.eclipse.swt.graphics.Image;
	import org.eclipse.swt.graphics.Point;
	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.Event;
	import org.eclipse.swt.widgets.Label;
	import org.eclipse.swt.widgets.Shell;
	import org.eclipse.swt.widgets.Table;
	import org.eclipse.swt.widgets.TableColumn;
	import org.eclipse.swt.widgets.TableItem;

	/** A dialog that presents fields to enter "in" parameters for a discoverer */
	public class GenericParametersDialog extends TitleAreaDialog {

	private static final String NAME_COLUMN_PROPERTY = "name"; //$NON-NLS-1$
	private static final String VALUE_COLUMN_PROPERTY = "value"; //$NON-NLS-1$
	private static final String TYPE_COLUMN_PROPERTY = "type"; //$NON-NLS-1$
	private static final int NAME_COLUMN_INDEX = 0;
	private static final int VALUE_COLUMN_INDEX = 1;
	private static final int TYPE_COLUMN_INDEX = 2;
	private static final int DIALOG_WIDTH = 725;
	private static final int DIALOG_HEIGHT = 455;

	private static final int NAME_COLUMN_WIDTH = 150;
	private static final int VALUE_COLUMN_WIDTH = 250;
	private static final int TYPE_COLUMN_WIDTH = 250;
	private static final int PARAMETERS_TABLE_HEIGHT = 120;

	private final List<DiscovererParameter> parameters;
	private final Object[] fParameterValues;
	private final AbstractCellEditorComposite<?>[] cellEditors;
	private final String discovererName;
	private TableViewer tableViewerParameters;
	private Table tableParameters;
	private Image titleImage;
	private Button checkBoxOpenModel;
	private boolean openModel;
	private final boolean showOpenModelCheckbox;

	private boolean cellEditorOpened = false;
	private final LaunchConfiguration configurationModel;

	protected static final class ParametersTableContentProvider implements
	IStructuredContentProvider {
	public void inputChanged(final Viewer viewer, final Object oldInput, final Object newInput) {
	//
	}

	public void dispose() {
	//
	}

	public Object[] getElements(final Object inputElement) {
	if (inputElement instanceof List) {
	List<?> list = (List<?>) inputElement;
	return list.toArray();
	}
	throw new IllegalArgumentException();
	}
	}

	protected final class ParametersTableLabelProvider implements ITableLabelProvider {
	public String getColumnText(final Object element, final int columnIndex) {
	if (element instanceof DiscovererParameter) {
	DiscovererParameter param = (DiscovererParameter) element;
	switch (columnIndex) {
	case GenericParametersDialog.NAME_COLUMN_INDEX:
	if (param.isRequiredInput()) {
	return param.getId() + "*"; //$NON-NLS-1$
	}
	return param.getId();
	case GenericParametersDialog.VALUE_COLUMN_INDEX:
	Object parameterValue = GenericParametersDialog.this.fParameterValues[GenericParametersDialog.this.parameters
	.indexOf(element)];
	if (parameterValue == null) {
	return ""; //$NON-NLS-1$
	}
	return parameterValue.toString();
	case GenericParametersDialog.TYPE_COLUMN_INDEX:
	return param.getType().getName();
	default:
	MoDiscoLogger.logError("unhandled case", Activator.getDefault()); //$NON-NLS-1$
	}
	}
	return null;
	}

	public Image getColumnImage(final Object element, final int columnIndex) {
	return null;
	}

	public boolean isLabelProperty(final Object element, final String property) {
	return true;
	}

	public void dispose() {
	//
	}

	public void addListener(final ILabelProviderListener listener) {
	//
	}

	public void removeListener(final ILabelProviderListener listener) {
	//
	}
	}

	/**
	* Create the dialog.
	*
	* @param parentShell
	* @param parameters
	* @param discovererName
	* @param showOpenModelCheckbox
	* @param configurationModel
	* contains the parameters saved from the last discovery
	*/
	public GenericParametersDialog(final Shell parentShell,
	final List<DiscovererParameter> parameters, final String discovererName,
	final boolean showOpenModelCheckbox, final LaunchConfiguration configurationModel) {
	super(parentShell);
	this.parameters = parameters;
	this.discovererName = discovererName;
	this.showOpenModelCheckbox = showOpenModelCheckbox;
	this.configurationModel = configurationModel;
	this.fParameterValues = initializeParameterValues();
	this.cellEditors = new AbstractCellEditorComposite<?>[parameters.size()];
	setTitleImage(getTitleImage());
	}

	private Object[] initializeParameterValues() {
	Object[] values = new Object[this.parameters.size()];
	EList<ParameterValue> parameterValues = this.configurationModel.getParameterValues();
	for (ParameterValue parameterValue : parameterValues) {
	DiscovererParameter parameter = parameterValue.getParameter();
	int parameterIndex = getParameterIndex(parameter);
	if (parameterIndex != -1) {
	values[parameterIndex] = parameterValue.getValue();
	}
	}
	return values;
	}

	private int getParameterIndex(final DiscovererParameter parameter) {
	for (int i = 0; i < this.parameters.size(); i++) {
	DiscovererParameter param = this.parameters.get(i);
	if (param.getId().equals(parameter.getId())) {
	return i;
	}
	}
	return -1;
	}

	private Image getTitleImage() {
	if (this.titleImage == null) {
	this.titleImage = Activator
	.getImageDescriptor("icons/discoverer_banner.png").createImage(); //$NON-NLS-1$
	}
	return this.titleImage;
	}

	/**
	* Create the contents of the dialog.
	*
	* @param parent
	*/
	@Override
	protected Control createDialogArea(final Composite parent) {
	setTitle(Messages.GenericParametersDialog_title);

	Composite container = new Composite(parent, SWT.NONE);
	GridLayout layout = new GridLayout(2, false);
	container.setLayout(layout);
	container.setLayoutData(new GridData(GridData.FILL_BOTH));
	container.setFont(parent.getFont());

	createParametersTable(container);

	Label lblRequired = new Label(container, SWT.NONE);
	lblRequired.setLayoutData(new GridData(SWT.LEFT, SWT.CENTER, false, false, 2, 1));
	lblRequired.setText(Messages.GenericParametersDialog_marksRequiredParam);

	if (this.showOpenModelCheckbox) {
	this.checkBoxOpenModel = new Button(container, SWT.CHECK);
	this.checkBoxOpenModel.setLayoutData(new GridData(SWT.LEFT, SWT.CENTER, false, false,
	2, 1));
	this.checkBoxOpenModel.setText(Messages.GenericParametersDialog_openModelEditor);
	this.checkBoxOpenModel
	.setSelection(this.configurationModel.isOpenModelAfterDiscovery());
	}

	return container;
	}

	private void createParametersTable(final Composite container) {
	this.tableViewerParameters = new TableViewer(container, SWT.MULTI \| SWT.BORDER
	\| SWT.FULL_SELECTION);
	this.tableParameters = this.tableViewerParameters.getTable();
	this.tableParameters.setLinesVisible(true);
	this.tableParameters.setHeaderVisible(true);
	GridData gdTableParameters = new GridData(SWT.FILL, SWT.FILL, true, true, 2, 1);
	gdTableParameters.heightHint = GenericParametersDialog.PARAMETERS_TABLE_HEIGHT;
	this.tableParameters.setLayoutData(gdTableParameters);

	TableViewerColumn tableViewerColumnName = new TableViewerColumn(this.tableViewerParameters,
	SWT.NONE);
	TableColumn tableColumnName = tableViewerColumnName.getColumn();
	tableColumnName.setWidth(GenericParametersDialog.NAME_COLUMN_WIDTH);
	tableColumnName.setText(Messages.GenericParametersDialog_name);

	TableViewerColumn tableViewerColumnValue = new TableViewerColumn(
	this.tableViewerParameters, SWT.NONE);
	TableColumn tableColumnValue = tableViewerColumnValue.getColumn();
	tableColumnValue.setWidth(GenericParametersDialog.VALUE_COLUMN_WIDTH);
	tableColumnValue.setText(Messages.GenericParametersDialog_value);
	tableViewerColumnValue.setEditingSupport(new ParameterValueEditingSupport(
	this.tableViewerParameters, this));

	TableViewerColumn tableViewerColumnType = new TableViewerColumn(this.tableViewerParameters,
	SWT.NONE);
	TableColumn tableColumnType = tableViewerColumnType.getColumn();
	tableColumnType.setWidth(GenericParametersDialog.TYPE_COLUMN_WIDTH);
	tableColumnType.setText(Messages.GenericParametersDialog_type);

	this.tableViewerParameters.setColumnProperties(new String[] {
	GenericParametersDialog.NAME_COLUMN_PROPERTY,
	GenericParametersDialog.VALUE_COLUMN_PROPERTY,
	GenericParametersDialog.TYPE_COLUMN_PROPERTY });

	this.tableViewerParameters.setContentProvider(new ParametersTableContentProvider());
	this.tableViewerParameters.setLabelProvider(new ParametersTableLabelProvider());
	this.tableViewerParameters.setInput(this.parameters);

	tableColumnName.pack();

	this.tableViewerParameters.getTable().addKeyListener(new KeyAdapter() {
	@Override
	public void keyPressed(final KeyEvent e) {
	if (e.keyCode == SWT.F2) {
	IStructuredSelection selection = (IStructuredSelection) GenericParametersDialog.this.tableViewerParameters
	.getSelection();
	Object firstElement = selection.getFirstElement();
	GenericParametersDialog.this.tableViewerParameters.editElement(firstElement,
	GenericParametersDialog.VALUE_COLUMN_INDEX);
	}
	}
	});

	createDescriptionTooltip(this.tableParameters);
	}

	private static void createDescriptionTooltip(final Table table) {
	ToolTip tooltip = new DiscovererParameterDescriptionTooltip(table) {
	@Override
	protected DiscovererParameter getDiscovererParameterAt(final Event event) {
	TableItem item = table.getItem(new Point(event.x, event.y));
	if (item == null) {
	return null;
	}
	DiscovererParameter parameter = (DiscovererParameter) item.getData();
	return parameter;
	}
	};
	tooltip.activate();
	}

	public void validate(final boolean showErrors) {
	for (int i = 0; i < this.parameters.size(); i++) {
	Object value = this.fParameterValues[i];
	DiscovererParameter param = this.parameters.get(i);
	if (value == null && param.isRequiredInput()) {
	if (showErrors) {
	setErrorMessage(NLS.bind(Messages.GenericParametersDialog_fieldIsEmpty,
	param.getId()));
	}
	getButton(IDialogConstants.OK_ID).setEnabled(false);
	return;
	}

	if (this.cellEditors[i] != null) {
	IValidator validator = this.cellEditors[i].getValidator();
	IStatus status = validator.validate(this.cellEditors[i].getValue());
	if (status != Status.OK_STATUS) {
	if (showErrors) {
	String statusMessage = status.getMessage();
	String msg;
	if (statusMessage != null && statusMessage.trim().length() > 0) {
	msg = NLS.bind(Messages.GenericParametersDialog_invalidField1,
	param.getId(), statusMessage);
	} else {
	msg = NLS.bind(Messages.GenericParametersDialog_invalidField2,
	param.getId());
	}
	setErrorMessage(msg);
	}
	getButton(IDialogConstants.OK_ID).setEnabled(false);
	return;
	}
	}
	}
	setErrorMessage(null);
	if (this.cellEditorOpened) {
	getButton(IDialogConstants.OK_ID).setEnabled(false);
	} else {
	getButton(IDialogConstants.OK_ID).setEnabled(true);
	}
	}

	/**
	* Create contents of the button bar.
	*
	* @param parent
	*/
	@Override
	protected void createButtonsForButtonBar(final Composite parent) {
	createButton(parent, IDialogConstants.OK_ID, "&" + IDialogConstants.OK_LABEL, true); //$NON-NLS-1$
	createButton(parent, IDialogConstants.CANCEL_ID, IDialogConstants.CANCEL_LABEL, false);
	validate(false);
	}

	@Override
	protected boolean isResizable() {
	return true;
	}

	@Override
	protected IDialogSettings getDialogBoundsSettings() {
	// save settings per discoverer
	final String sectionName = this.getClass().getName() + ":" + this.discovererName; //$NON-NLS-1$
	IDialogSettings settings = Activator.getDefault().getDialogSettings();
	IDialogSettings section = settings.getSection(sectionName);
	if (section == null) {
	section = settings.addNewSection(sectionName);
	section.put("DIALOG_WIDTH", GenericParametersDialog.DIALOG_WIDTH); //$NON-NLS-1$
	section.put("DIALOG_HEIGHT", GenericParametersDialog.DIALOG_HEIGHT); //$NON-NLS-1$
	}
	return section;
	}

	@Override
	protected void configureShell(final Shell newShell) {
	super.configureShell(newShell);
	newShell.setText(NLS.bind(Messages.GenericParametersDialog_shellText, this.discovererName));

	}

	public Object[] getParameterValues() {
	return this.fParameterValues;
	}

	@Override
	public boolean isHelpAvailable() {
	return false;
	}

	public Object getParameterValue(final DiscovererParameter element) {
	return this.fParameterValues[this.parameters.indexOf(element)];

	}

	public void setParameterValue(final DiscovererParameter element, final Object value) {
	this.fParameterValues[this.parameters.indexOf(element)] = value;
	}

	@Override
	public boolean close() {
	if (this.checkBoxOpenModel != null) {
	this.openModel = this.checkBoxOpenModel.getSelection();
	} else {
	this.openModel = false;
	}
	boolean closed = super.close();
	this.titleImage.dispose();
	return closed;
	}

	public boolean isOpenModel() {
	return this.openModel;
	}

	public boolean isCellEditorOpened() {
	return this.cellEditorOpened;
	}

	public void setCellEditorOpened(final boolean value) {
	this.cellEditorOpened = value;
	}
	}