eclipse-m2e-ui/src/org/apache/sling/ide/eclipse/ui/wizards/np/ArchetypeParametersWizardPage.java - sling-ide-tooling - Git at Google

 /*
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.
  * The ASF licenses this file to You under the Apache License, Version 2.0
  * (the "License"); you may not use this file except in compliance with
  * the License.  You may obtain a copy of the License at
  *
  *      http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
 package org.apache.sling.ide.eclipse.ui.wizards.np;

 import java.util.Iterator;
 import java.util.List;
 import java.util.Properties;
 import java.util.StringTokenizer;

 import org.apache.maven.archetype.catalog.Archetype;
 import org.apache.maven.archetype.metadata.RequiredProperty;
 import org.apache.maven.artifact.repository.ArtifactRepository;
 import org.eclipse.core.resources.IProject;
 import org.eclipse.core.resources.ResourcesPlugin;
 import org.eclipse.jface.dialogs.IDialogPage;
 import org.eclipse.jface.viewers.CellEditor;
 import org.eclipse.jface.viewers.CellNavigationStrategy;
 import org.eclipse.jface.viewers.ColumnViewerEditor;
 import org.eclipse.jface.viewers.ColumnViewerEditorActivationEvent;
 import org.eclipse.jface.viewers.ColumnViewerEditorActivationStrategy;
 import org.eclipse.jface.viewers.FocusCellOwnerDrawHighlighter;
 import org.eclipse.jface.viewers.ICellModifier;
 import org.eclipse.jface.viewers.TableViewer;
 import org.eclipse.jface.viewers.TableViewerEditor;
 import org.eclipse.jface.viewers.TableViewerFocusCellManager;
 import org.eclipse.jface.viewers.TextCellEditor;
 import org.eclipse.jface.wizard.WizardPage;
 import org.eclipse.m2e.core.internal.MavenPluginActivator;
 import org.eclipse.m2e.core.internal.archetype.ArchetypeManager;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.events.KeyAdapter;
 import org.eclipse.swt.events.KeyEvent;
 import org.eclipse.swt.events.ModifyEvent;
 import org.eclipse.swt.events.ModifyListener;
 import org.eclipse.swt.layout.GridData;
 import org.eclipse.swt.layout.GridLayout;
 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.swt.widgets.Label;
 import org.eclipse.swt.widgets.Table;
 import org.eclipse.swt.widgets.TableColumn;
 import org.eclipse.swt.widgets.TableItem;
 import org.eclipse.swt.widgets.Text;

 @SuppressWarnings("restriction")
 public class ArchetypeParametersWizardPage extends WizardPage {

 	private static final String KEY_PROPERTY = "key";

 	private static final String VALUE_PROPERTY = "value";

 	private Text groupId;

 	private Text artifactId;

 	private Text javaPackage;

 	private boolean javaPackageModified;

 	private final AbstractNewMavenBasedSlingApplicationWizard parent;

 	private TableViewer propertiesViewer;

 	private Table propertiesTable;

 	private List<RequiredProperty> properties;

 	private Text version;

 	public ArchetypeParametersWizardPage(AbstractNewMavenBasedSlingApplicationWizard parent) {
 		super("archetypeParametersPage");
 		this.parent = parent;
 		setTitle("Configure Archetype Properties");
         setDescription("This step configures the archetype properties");
 		setImageDescriptor(parent.getLogo());
 	}

 	/**
 	 * @see IDialogPage#createControl(Composite)
 	 */
 	public void createControl(Composite parent) {
 		Composite container = new Composite(parent, SWT.NULL);
 		GridLayout layout = new GridLayout();
 		container.setLayout(layout);
 		layout.numColumns = 2;
 		layout.verticalSpacing = 9;

 		Label label = new Label(container, SWT.NULL);
 		label.setText("&Group Id:");
 		groupId = new Text(container, SWT.BORDER | SWT.SINGLE);
 		GridData gd = new GridData(GridData.FILL_HORIZONTAL);
 		groupId.setLayoutData(gd);
 		groupId.addModifyListener(new ModifyListener() {
 			public void modifyText(ModifyEvent e) {
 				dialogChanged();
 				if (!javaPackageModified) {
 					if (artifactId.getText().length()==0) {
 						javaPackage.setText(getDefaultJavaPackage(groupId.getText(), ""));
 					} else {
 						javaPackage.setText(getDefaultJavaPackage(groupId.getText(), artifactId.getText()));
 					}
 				}
 			}
 		});

 		label = new Label(container, SWT.NULL);
 		label.setText("&Artifact Id:");

 		artifactId = new Text(container, SWT.BORDER | SWT.SINGLE);
 		gd = new GridData(GridData.FILL_HORIZONTAL);
 		artifactId.setLayoutData(gd);
 		artifactId.addModifyListener(new ModifyListener() {
 			public void modifyText(ModifyEvent e) {
 				dialogChanged();
 				if (javaPackageModified) {
 					return;
 				}
 				if (groupId.getText().length()==0) {
 					javaPackage.setText(getDefaultJavaPackage("", artifactId.getText()));
 				} else {
 					javaPackage.setText(getDefaultJavaPackage(groupId.getText(), artifactId.getText()));
 				}
 			}
 		});

 		label = new Label(container, SWT.NULL);
 		label.setText("&Version:");

 		version = new Text(container, SWT.BORDER | SWT.SINGLE);
 		gd = new GridData(GridData.FILL_HORIZONTAL);
 		version.setLayoutData(gd);
 		version.setText("0.0.1-SNAPSHOT");
 		version.addModifyListener(new ModifyListener() {
 			public void modifyText(ModifyEvent e) {
 				dialogChanged();
 			}
 		});

 		label = new Label(container, SWT.NULL);
 		label.setText("&Package:");

 		javaPackage = new Text(container, SWT.BORDER | SWT.SINGLE);
 		gd = new GridData(GridData.FILL_HORIZONTAL);
 		javaPackage.setLayoutData(gd);
 		javaPackageModified = false;
 		javaPackage.addKeyListener(new KeyAdapter() {
 			@Override
 			public void keyPressed(KeyEvent e) {
 				javaPackageModified = true;
 			}
 		});
 		javaPackage.addModifyListener(new ModifyListener() {
 			public void modifyText(ModifyEvent e) {
 				dialogChanged();
 			}
 		});

 		label = new Label(container, SWT.NULL);
 		gd = new GridData(SWT.LEFT, SWT.TOP, false, false);
 		label.setLayoutData(gd);
 		label.setText("&Parameters:");


 	    propertiesViewer = new TableViewer(container, SWT.BORDER | SWT.FULL_SELECTION);
 	    propertiesTable = propertiesViewer.getTable();
 	    propertiesTable.setLinesVisible(true);
 	    propertiesTable.setHeaderVisible(true);
 	    propertiesTable.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 2, 2));

 	    CellNavigationStrategy strategy = new CellNavigationStrategy();
 		TableViewerFocusCellManager focusCellMgr = new TableViewerFocusCellManager(propertiesViewer,
 	    		new FocusCellOwnerDrawHighlighter(propertiesViewer),
 	    		strategy);

         ColumnViewerEditorActivationStrategy actSupport = new ColumnViewerEditorActivationStrategy(
                 propertiesViewer){

             @Override
             protected boolean isEditorActivationEvent(
                     ColumnViewerEditorActivationEvent event) {
                 return event.eventType == ColumnViewerEditorActivationEvent.TRAVERSAL
                         || event.eventType == ColumnViewerEditorActivationEvent.MOUSE_DOUBLE_CLICK_SELECTION
                         || (event.eventType == ColumnViewerEditorActivationEvent.KEY_PRESSED && event.keyCode == SWT.CR)
                         || event.eventType == ColumnViewerEditorActivationEvent.PROGRAMMATIC;
             }
         };
         int features = ColumnViewerEditor.TABBING_HORIZONTAL
                 | ColumnViewerEditor.TABBING_MOVE_TO_ROW_NEIGHBOR
                 | ColumnViewerEditor.TABBING_VERTICAL
                 | ColumnViewerEditor.KEYBOARD_ACTIVATION
                 | ColumnViewerEditor.KEEP_EDITOR_ON_DOUBLE_CLICK;
         TableViewerEditor.create(propertiesViewer, focusCellMgr, actSupport, features);


 	    TableColumn propertiesTableNameColumn = new TableColumn(propertiesTable, SWT.NONE);
 	    propertiesTableNameColumn.setWidth(130);
 	    propertiesTableNameColumn.setText("Name");

 	    TableColumn propertiesTableValueColumn = new TableColumn(propertiesTable, SWT.NONE);
 	    propertiesTableValueColumn.setWidth(230);
 	    propertiesTableValueColumn.setText("Value");

 	    propertiesViewer.setColumnProperties(new String[] {KEY_PROPERTY, VALUE_PROPERTY});

 	    propertiesViewer.setCellEditors(new CellEditor[] {new TextCellEditor(propertiesTable, SWT.NONE),
 	        new TextCellEditor(propertiesTable, SWT.NONE)});
 	    propertiesViewer.setCellModifier(new ICellModifier() {
 	      public boolean canModify(Object element, String property) {
 	        return true;
 	      }

 	      public void modify(Object element, String property, Object value) {
 	        if(element instanceof TableItem) {
 	          ((TableItem) element).setText(getTextIndex(property), String.valueOf(value));
 	          dialogChanged();
 	        }
 	      }

 	      public Object getValue(Object element, String property) {
 	        if(element instanceof TableItem) {
 	          return ((TableItem) element).getText(getTextIndex(property));
 	        }
 	        return null;
 	      }
 	    });

 		initialize();
 		setPageComplete(false);
 		setControl(container);
 	}

 	protected int getTextIndex(String property) {
 		if (KEY_PROPERTY.equals(property)) {
 			return 0;
 		} else {
 			return 1;
 		}
 	}

 	@Override
 	public void setVisible(boolean visible) {
 		super.setVisible(visible);
 		if (visible) {
 			initialize();
 		}
 	}

 	@SuppressWarnings("unchecked")
 	private void initialize() {
 		if (propertiesTable==null) {
 			return;
 		}

 		Archetype archetype = parent.getChooseArchetypePage().getSelectedArchetype();
 		if (archetype==null) {
 			return;
 		}

         try {
         	ArchetypeManager archetypeManager = MavenPluginActivator.getDefault().getArchetypeManager();
         	ArtifactRepository remoteArchetypeRepository = archetypeManager.getArchetypeRepository(archetype);
 			properties = (List<RequiredProperty>) archetypeManager.getRequiredProperties(archetype, remoteArchetypeRepository, null);

 			Table table = propertiesViewer.getTable();
 			table.setItemCount(properties.size());
 			int i = 0;
 			for (Iterator<RequiredProperty> it = properties.iterator(); it.hasNext();) {
 				RequiredProperty rp = it.next();
 				TableItem item = table.getItem(i++);
 				if (!rp.getKey().equals(item.getText())) {
 					// then create it - otherwise, reuse it
 					item.setText(0, rp.getKey());
 					item.setText(1, "");
 					item.setData(item);
 				}
 			}
 		} catch (Exception e) {
 			throw new RuntimeException("Could not process archetype: "+e.getMessage(), e);
 		}

 	}


 	/**
 	 * Ensures that both text fields are set.
 	 */

 	private void dialogChanged() {
 		if (groupId.getText().length()==0) {
 			updateStatus("group Id must be specified");
 			return;
 		}
 		if (artifactId.getText().length()==0) {
 			updateStatus("artifact Id must be specified");
 			return;
 		}
 		if (version.getText().length()==0) {
 			updateStatus("version must be specified");
 			return;
 		}
 		if (javaPackage.getText().length()==0) {
 			updateStatus("package must be specified");
 			return;
 		}

         IProject existingProject = ResourcesPlugin.getWorkspace().getRoot().getProject(artifactId.getText());

         if (existingProject.exists()) {
             updateStatus("A project with the name " + artifactId.getText() + " already exists.");
             return;
         }

 		int cnt = propertiesTable.getItemCount();
 		for(int i=0; i<cnt; i++) {
 			TableItem item = propertiesTable.getItem(i);
 			if (item.getText(1).length()==0) {
 				updateStatus(item.getText(0)+" must be specified");
 				return;
 			}
 		}

 		updateStatus(null);
 	}

 	private void updateStatus(String message) {
 		setErrorMessage(message);
 		setPageComplete(message == null);
 	}

 	public String getGroupId() {
 		return groupId.getText();
 	}

 	public String getArtifactId() {
 		return artifactId.getText();
 	}

 	public String getVersion() {
 		return version.getText();
 	}

 	public String getJavaPackage() {
 		return javaPackage.getText();
 	}

 	public Properties getProperties() {
 		int cnt = propertiesTable.getItemCount();
 		Properties p = new Properties();
 		for(int i=0; i<cnt; i++) {
 			TableItem item = propertiesTable.getItem(i);
 			p.put(item.getText(0), item.getText(1));
 		}
 		return p;
 	}

 	public static String getDefaultJavaPackage(String groupId, String artifactId) {
 		String name = (artifactId.isEmpty()) ? groupId : groupId+"."+artifactId;
 		StringBuffer sb = new StringBuffer();
 		StringTokenizer st = new StringTokenizer(name.replaceAll("-", "_"), ".");
 		while(st.hasMoreTokens()) {
 			String part = st.nextToken();
 			while(part.length()>0 && !Character.isJavaIdentifierStart(part.charAt(0))) {
 				part = part.substring(1);
 			}
 			if (part.length()==0) {
 				continue;
 			}
 			if (sb.length()!=0) {
 				sb.append(".");
 			}
 			sb.append(part);
 		}
 		return sb.toString();
 	}

 }
	/*
	* Licensed to the Apache Software Foundation (ASF) under one or more
	* contributor license agreements. See the NOTICE file distributed with
	* this work for additional information regarding copyright ownership.
	* The ASF licenses this file to You under the Apache License, Version 2.0
	* (the "License"); you may not use this file except in compliance with
	* the License. You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/
	package org.apache.sling.ide.eclipse.ui.wizards.np;

	import java.util.Iterator;
	import java.util.List;
	import java.util.Properties;
	import java.util.StringTokenizer;

	import org.apache.maven.archetype.catalog.Archetype;
	import org.apache.maven.archetype.metadata.RequiredProperty;
	import org.apache.maven.artifact.repository.ArtifactRepository;
	import org.eclipse.core.resources.IProject;
	import org.eclipse.core.resources.ResourcesPlugin;
	import org.eclipse.jface.dialogs.IDialogPage;
	import org.eclipse.jface.viewers.CellEditor;
	import org.eclipse.jface.viewers.CellNavigationStrategy;
	import org.eclipse.jface.viewers.ColumnViewerEditor;
	import org.eclipse.jface.viewers.ColumnViewerEditorActivationEvent;
	import org.eclipse.jface.viewers.ColumnViewerEditorActivationStrategy;
	import org.eclipse.jface.viewers.FocusCellOwnerDrawHighlighter;
	import org.eclipse.jface.viewers.ICellModifier;
	import org.eclipse.jface.viewers.TableViewer;
	import org.eclipse.jface.viewers.TableViewerEditor;
	import org.eclipse.jface.viewers.TableViewerFocusCellManager;
	import org.eclipse.jface.viewers.TextCellEditor;
	import org.eclipse.jface.wizard.WizardPage;
	import org.eclipse.m2e.core.internal.MavenPluginActivator;
	import org.eclipse.m2e.core.internal.archetype.ArchetypeManager;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.events.KeyAdapter;
	import org.eclipse.swt.events.KeyEvent;
	import org.eclipse.swt.events.ModifyEvent;
	import org.eclipse.swt.events.ModifyListener;
	import org.eclipse.swt.layout.GridData;
	import org.eclipse.swt.layout.GridLayout;
	import org.eclipse.swt.widgets.Composite;
	import org.eclipse.swt.widgets.Label;
	import org.eclipse.swt.widgets.Table;
	import org.eclipse.swt.widgets.TableColumn;
	import org.eclipse.swt.widgets.TableItem;
	import org.eclipse.swt.widgets.Text;

	@SuppressWarnings("restriction")
	public class ArchetypeParametersWizardPage extends WizardPage {

	private static final String KEY_PROPERTY = "key";

	private static final String VALUE_PROPERTY = "value";

	private Text groupId;

	private Text artifactId;

	private Text javaPackage;

	private boolean javaPackageModified;

	private final AbstractNewMavenBasedSlingApplicationWizard parent;

	private TableViewer propertiesViewer;

	private Table propertiesTable;

	private List<RequiredProperty> properties;

	private Text version;

	public ArchetypeParametersWizardPage(AbstractNewMavenBasedSlingApplicationWizard parent) {
	super("archetypeParametersPage");
	this.parent = parent;
	setTitle("Configure Archetype Properties");
	setDescription("This step configures the archetype properties");
	setImageDescriptor(parent.getLogo());
	}

	/**
	* @see IDialogPage#createControl(Composite)
	*/
	public void createControl(Composite parent) {
	Composite container = new Composite(parent, SWT.NULL);
	GridLayout layout = new GridLayout();
	container.setLayout(layout);
	layout.numColumns = 2;
	layout.verticalSpacing = 9;

	Label label = new Label(container, SWT.NULL);
	label.setText("&Group Id:");
	groupId = new Text(container, SWT.BORDER \| SWT.SINGLE);
	GridData gd = new GridData(GridData.FILL_HORIZONTAL);
	groupId.setLayoutData(gd);
	groupId.addModifyListener(new ModifyListener() {
	public void modifyText(ModifyEvent e) {
	dialogChanged();
	if (!javaPackageModified) {
	if (artifactId.getText().length()==0) {
	javaPackage.setText(getDefaultJavaPackage(groupId.getText(), ""));
	} else {
	javaPackage.setText(getDefaultJavaPackage(groupId.getText(), artifactId.getText()));
	}
	}
	}
	});

	label = new Label(container, SWT.NULL);
	label.setText("&Artifact Id:");

	artifactId = new Text(container, SWT.BORDER \| SWT.SINGLE);
	gd = new GridData(GridData.FILL_HORIZONTAL);
	artifactId.setLayoutData(gd);
	artifactId.addModifyListener(new ModifyListener() {
	public void modifyText(ModifyEvent e) {
	dialogChanged();
	if (javaPackageModified) {
	return;
	}
	if (groupId.getText().length()==0) {
	javaPackage.setText(getDefaultJavaPackage("", artifactId.getText()));
	} else {
	javaPackage.setText(getDefaultJavaPackage(groupId.getText(), artifactId.getText()));
	}
	}
	});

	label = new Label(container, SWT.NULL);
	label.setText("&Version:");

	version = new Text(container, SWT.BORDER \| SWT.SINGLE);
	gd = new GridData(GridData.FILL_HORIZONTAL);
	version.setLayoutData(gd);
	version.setText("0.0.1-SNAPSHOT");
	version.addModifyListener(new ModifyListener() {
	public void modifyText(ModifyEvent e) {
	dialogChanged();
	}
	});

	label = new Label(container, SWT.NULL);
	label.setText("&Package:");

	javaPackage = new Text(container, SWT.BORDER \| SWT.SINGLE);
	gd = new GridData(GridData.FILL_HORIZONTAL);
	javaPackage.setLayoutData(gd);
	javaPackageModified = false;
	javaPackage.addKeyListener(new KeyAdapter() {
	@Override
	public void keyPressed(KeyEvent e) {
	javaPackageModified = true;
	}
	});
	javaPackage.addModifyListener(new ModifyListener() {
	public void modifyText(ModifyEvent e) {
	dialogChanged();
	}
	});

	label = new Label(container, SWT.NULL);
	gd = new GridData(SWT.LEFT, SWT.TOP, false, false);
	label.setLayoutData(gd);
	label.setText("&Parameters:");


	propertiesViewer = new TableViewer(container, SWT.BORDER \| SWT.FULL_SELECTION);
	propertiesTable = propertiesViewer.getTable();
	propertiesTable.setLinesVisible(true);
	propertiesTable.setHeaderVisible(true);
	propertiesTable.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 2, 2));

	CellNavigationStrategy strategy = new CellNavigationStrategy();
	TableViewerFocusCellManager focusCellMgr = new TableViewerFocusCellManager(propertiesViewer,
	new FocusCellOwnerDrawHighlighter(propertiesViewer),
	strategy);

	ColumnViewerEditorActivationStrategy actSupport = new ColumnViewerEditorActivationStrategy(
	propertiesViewer){

	@Override
	protected boolean isEditorActivationEvent(
	ColumnViewerEditorActivationEvent event) {
	return event.eventType == ColumnViewerEditorActivationEvent.TRAVERSAL
	\|\| event.eventType == ColumnViewerEditorActivationEvent.MOUSE_DOUBLE_CLICK_SELECTION
	\|\| (event.eventType == ColumnViewerEditorActivationEvent.KEY_PRESSED && event.keyCode == SWT.CR)
	\|\| event.eventType == ColumnViewerEditorActivationEvent.PROGRAMMATIC;
	}
	};
	int features = ColumnViewerEditor.TABBING_HORIZONTAL
	\| ColumnViewerEditor.TABBING_MOVE_TO_ROW_NEIGHBOR
	\| ColumnViewerEditor.TABBING_VERTICAL
	\| ColumnViewerEditor.KEYBOARD_ACTIVATION
	\| ColumnViewerEditor.KEEP_EDITOR_ON_DOUBLE_CLICK;
	TableViewerEditor.create(propertiesViewer, focusCellMgr, actSupport, features);


	TableColumn propertiesTableNameColumn = new TableColumn(propertiesTable, SWT.NONE);
	propertiesTableNameColumn.setWidth(130);
	propertiesTableNameColumn.setText("Name");

	TableColumn propertiesTableValueColumn = new TableColumn(propertiesTable, SWT.NONE);
	propertiesTableValueColumn.setWidth(230);
	propertiesTableValueColumn.setText("Value");

	propertiesViewer.setColumnProperties(new String[] {KEY_PROPERTY, VALUE_PROPERTY});

	propertiesViewer.setCellEditors(new CellEditor[] {new TextCellEditor(propertiesTable, SWT.NONE),
	new TextCellEditor(propertiesTable, SWT.NONE)});
	propertiesViewer.setCellModifier(new ICellModifier() {
	public boolean canModify(Object element, String property) {
	return true;
	}

	public void modify(Object element, String property, Object value) {
	if(element instanceof TableItem) {
	((TableItem) element).setText(getTextIndex(property), String.valueOf(value));
	dialogChanged();
	}
	}

	public Object getValue(Object element, String property) {
	if(element instanceof TableItem) {
	return ((TableItem) element).getText(getTextIndex(property));
	}
	return null;
	}
	});

	initialize();
	setPageComplete(false);
	setControl(container);
	}

	protected int getTextIndex(String property) {
	if (KEY_PROPERTY.equals(property)) {
	return 0;
	} else {
	return 1;
	}
	}

	@Override
	public void setVisible(boolean visible) {
	super.setVisible(visible);
	if (visible) {
	initialize();
	}
	}

	@SuppressWarnings("unchecked")
	private void initialize() {
	if (propertiesTable==null) {
	return;
	}

	Archetype archetype = parent.getChooseArchetypePage().getSelectedArchetype();
	if (archetype==null) {
	return;
	}

	try {
	ArchetypeManager archetypeManager = MavenPluginActivator.getDefault().getArchetypeManager();
	ArtifactRepository remoteArchetypeRepository = archetypeManager.getArchetypeRepository(archetype);
	properties = (List<RequiredProperty>) archetypeManager.getRequiredProperties(archetype, remoteArchetypeRepository, null);

	Table table = propertiesViewer.getTable();
	table.setItemCount(properties.size());
	int i = 0;
	for (Iterator<RequiredProperty> it = properties.iterator(); it.hasNext();) {
	RequiredProperty rp = it.next();
	TableItem item = table.getItem(i++);
	if (!rp.getKey().equals(item.getText())) {
	// then create it - otherwise, reuse it
	item.setText(0, rp.getKey());
	item.setText(1, "");
	item.setData(item);
	}
	}
	} catch (Exception e) {
	throw new RuntimeException("Could not process archetype: "+e.getMessage(), e);
	}

	}


	/**
	* Ensures that both text fields are set.
	*/

	private void dialogChanged() {
	if (groupId.getText().length()==0) {
	updateStatus("group Id must be specified");
	return;
	}
	if (artifactId.getText().length()==0) {
	updateStatus("artifact Id must be specified");
	return;
	}
	if (version.getText().length()==0) {
	updateStatus("version must be specified");
	return;
	}
	if (javaPackage.getText().length()==0) {
	updateStatus("package must be specified");
	return;
	}

	IProject existingProject = ResourcesPlugin.getWorkspace().getRoot().getProject(artifactId.getText());

	if (existingProject.exists()) {
	updateStatus("A project with the name " + artifactId.getText() + " already exists.");
	return;
	}

	int cnt = propertiesTable.getItemCount();
	for(int i=0; i<cnt; i++) {
	TableItem item = propertiesTable.getItem(i);
	if (item.getText(1).length()==0) {
	updateStatus(item.getText(0)+" must be specified");
	return;
	}
	}

	updateStatus(null);
	}

	private void updateStatus(String message) {
	setErrorMessage(message);
	setPageComplete(message == null);
	}

	public String getGroupId() {
	return groupId.getText();
	}

	public String getArtifactId() {
	return artifactId.getText();
	}

	public String getVersion() {
	return version.getText();
	}

	public String getJavaPackage() {
	return javaPackage.getText();
	}

	public Properties getProperties() {
	int cnt = propertiesTable.getItemCount();
	Properties p = new Properties();
	for(int i=0; i<cnt; i++) {
	TableItem item = propertiesTable.getItem(i);
	p.put(item.getText(0), item.getText(1));
	}
	return p;
	}

	public static String getDefaultJavaPackage(String groupId, String artifactId) {
	String name = (artifactId.isEmpty()) ? groupId : groupId+"."+artifactId;
	StringBuffer sb = new StringBuffer();
	StringTokenizer st = new StringTokenizer(name.replaceAll("-", "_"), ".");
	while(st.hasMoreTokens()) {
	String part = st.nextToken();
	while(part.length()>0 && !Character.isJavaIdentifierStart(part.charAt(0))) {
	part = part.substring(1);
	}
	if (part.length()==0) {
	continue;
	}
	if (sb.length()!=0) {
	sb.append(".");
	}
	sb.append(part);
	}
	return sb.toString();
	}

	}