bundles/org.eclipse.jst.ws.jaxrs.ui/src/org/eclipse/jst/ws/jaxrs/ui/internal/classpath/JAXRSLibraryEditControl.java - webservices/webtools.webservices - Git at Google

 /*******************************************************************************
  * Copyright (c) 2009 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  * IBM Corporation - initial API and implementation
  * yyyymmdd bug      Email and other contact information
  * -------- -------- -----------------------------------------------------------
  * 20091021   291954 ericdp@ca.ibm.com - Eric D. Peters, JAX-RS: Implement JAX-RS Facet
  *******************************************************************************/package org.eclipse.jst.ws.jaxrs.ui.internal.classpath;

 import java.util.Collection;
 import java.util.HashSet;
 import java.util.Iterator;
 import java.util.Set;

 import org.eclipse.core.resources.ResourcesPlugin;
 import org.eclipse.core.runtime.IPath;
 import org.eclipse.core.runtime.Path;
 import org.eclipse.jface.resource.ImageDescriptor;
 import org.eclipse.jface.viewers.ILabelProvider;
 import org.eclipse.jface.viewers.ILabelProviderListener;
 import org.eclipse.jface.viewers.ISelectionChangedListener;
 import org.eclipse.jface.viewers.IStructuredContentProvider;
 import org.eclipse.jface.viewers.SelectionChangedEvent;
 import org.eclipse.jface.viewers.StructuredSelection;
 import org.eclipse.jface.viewers.TableViewer;
 import org.eclipse.jface.viewers.Viewer;
 import org.eclipse.jst.ws.jaxrs.core.internal.jaxrsibraryregistry.ArchiveFile;
 import org.eclipse.jst.ws.jaxrs.core.internal.jaxrsibraryregistry.JAXRSLibraryRegistryFactory;
 import org.eclipse.jst.ws.jaxrs.core.internal.jaxrsibraryregistry.JAXRSLibrary;
 import org.eclipse.jst.ws.jaxrs.core.internal.jaxrslibraryconfig.JAXRSLibraryRegistryUtil;
 import org.eclipse.jst.ws.jaxrs.ui.internal.JAXRSUIPlugin;
 import org.eclipse.jst.ws.jaxrs.ui.internal.Messages;
 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.events.SelectionListener;
 import org.eclipse.swt.graphics.Image;
 import org.eclipse.swt.layout.GridData;
 import org.eclipse.swt.layout.GridLayout;
 import org.eclipse.swt.widgets.Button;
 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.swt.widgets.FileDialog;
 import org.eclipse.swt.widgets.Group;
 import org.eclipse.swt.widgets.Label;
 import org.eclipse.swt.widgets.Text;

 /**
  * Common control for adding JAXRS Library instances
  */
 @SuppressWarnings("restriction")
 public class JAXRSLibraryEditControl extends Composite implements
 		ModifyListener, SelectionListener {
 	private Text txtName;
 	private Label lblName;
 	// private CCombo cboVersions;
 	// private Label lblVersions;
 	private Button chkDeploy;
 	// private Button chkImpl;
 	private Composite btnBar;
 	private Button btnAdd;
 	private Button btnRemove;
 	private TableViewer jars;

 	private boolean initing = false;

 	private JAXRSLibrary workingCopyLibrary;

 	private String validationMsg;
 	private Set<JAXRSLibraryValidationListener> _listeners;
 	private int _isNew = -1;// use isNew() method.. not this variable directly

 	/**
 	 * @param workingCopyLibrary
 	 *            working copy of the JAXRS Library
 	 * @param parent
 	 *            parent SWT control
 	 */
 	public JAXRSLibraryEditControl(JAXRSLibrary workingCopyLibrary,
 			Composite parent) {
 		super(parent, SWT.NONE);
 		this.workingCopyLibrary = workingCopyLibrary;
 		_listeners = new HashSet<JAXRSLibraryValidationListener>(1);
 		createControl(parent);
 	}

 	/**
 	 * @param listener
 	 */
 	public void addValidationListener(JAXRSLibraryValidationListener listener) {
 		removeValidationListener(listener);
 		_listeners.add(listener);
 	}

 	/**
 	 * @param listener
 	 */
 	public void removeValidationListener(JAXRSLibraryValidationListener listener) {
 		_listeners.remove(listener);
 	}

 	/**
 	 * @param parent
 	 */
 	public void createControl(Composite parent) {
 		initing = true;

 		// this = new Composite(parent, SWT.NONE);
 		this.setLayout(new GridLayout(2, false));
 		this.setLayoutData(new GridData(GridData.FILL_BOTH));

 		lblName = new Label(this, SWT.NONE);
 		lblName.setText(Messages.JAXRSLibraryWizard_LibraryName);
 		lblName.setLayoutData(new GridData(GridData.BEGINNING));

 		txtName = new Text(this, SWT.BORDER);
 		txtName.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
 		txtName.addModifyListener(this);

 		// lblVersions = new Label(this, SWT.NONE);
 		// lblVersions.setText(Messages.JAXRSLibraryWizard_VersionSupported);

 		// cboVersions = new CCombo(this, SWT.SINGLE | SWT.READ_ONLY |
 		// SWT.BORDER);
 		// cboVersions.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
 		// cboVersions.addModifyListener(this);

 		Group jarsComp = new Group(this, SWT.NONE);
 		jarsComp.setText(Messages.JAXRSLibraryWizard_LibraryJars);
 		GridLayout gl1 = new GridLayout(2, false);
 		jarsComp.setLayout(gl1);
 		GridData gd2 = new GridData(GridData.FILL_HORIZONTAL
 				| GridData.FILL_VERTICAL);
 		gd2.horizontalSpan = 2;
 		jarsComp.setLayoutData(gd2);

 		createJarsViewer(jarsComp);

 		createButtons(jarsComp);

 		// chkImpl = new Button(this, SWT.CHECK);
 		// chkImpl.setText(Messages.JAXRSLibraryWizard_IsJAXRSImplementation);
 		// GridData gd3 = new GridData();
 		// gd3.horizontalSpan = 2;
 		// chkImpl.setLayoutData(gd3);
 		// chkImpl.addSelectionListener(this);

 		chkDeploy = new Button(this, SWT.CHECK);
 		chkDeploy.setText(Messages.JAXRSLibraryWizard_DeployJars);
 		GridData gd4 = new GridData();
 		gd4.horizontalSpan = 2;
 		chkDeploy.setLayoutData(gd4);
 		// chkDeploy.addSelectionListener(this);
 		chkDeploy.setVisible(false);

 		// loadVersions();

 		if (!isNew()) {
 			txtName.setText(workingCopyLibrary.getName());
 			// if
 			// (workingCopyLibrary.getJAXRSVersion().getName().equals(JAXRSVersion.UNKNOWN_LITERAL.getName()))
 			// {
 			// cboVersions.setText(Messages.JAXRSLibraryEditControl_ImplVersion_UNKNOWN);
 			// } else {
 			// cboVersions.setText(workingCopyLibrary.getJAXRSVersion().getName());
 			// }
 			chkDeploy.setSelection(workingCopyLibrary.isDeployed());
 			// chkImpl.setSelection(workingCopyLibrary.isImplementation());
 		}
 		jars.setInput(workingCopyLibrary);

 		initing = false;

 		txtName.setFocus();
 	}

 	private void createJarsViewer(Group jarsComp) {
 		jars = new TableViewer(jarsComp, SWT.BORDER | SWT.MULTI);
 		jars.setContentProvider(new IStructuredContentProvider() {
 			public Object[] getElements(Object inputElement) {
 				if (inputElement instanceof JAXRSLibrary)
 					return ((JAXRSLibrary) inputElement).getArchiveFiles()
 							.toArray();
 				return new Object[0];
 			}

 			public void dispose() {
 				// do nothing
 			}

 			public void inputChanged(Viewer viewer, Object oldInput,
 					Object newInput) {
 				// won't happen
 			}
 		});
 		jars.setLabelProvider(new ILabelProvider() {
 			private Image jarImg = null;

 			public Image getImage(Object element) {
 				if (jarImg == null) {
 					ImageDescriptor desc = JAXRSUIPlugin
 							.getImageDescriptor("obj16/jar_obj.gif"); //$NON-NLS-1$
 					jarImg = desc.createImage();
 				}
 				return jarImg;
 			}

 			public String getText(Object element) {
 				StringBuffer labelBuf = new StringBuffer();
 				if (element instanceof ArchiveFile) {
 					ArchiveFile archive = (ArchiveFile) element;
 					labelBuf.append(archive.getName());
 					if (!archive.exists())
 						labelBuf
 								.append(Messages.JAXRSLibrariesPreferencePage_MISSING_DESC);
 					labelBuf.append(" - ").append(archive.getPath()); //$NON-NLS-1$
 				}
 				return labelBuf.toString();
 			}

 			public void addListener(ILabelProviderListener listener) {
 				// no listeners supported
 			}

 			public void dispose() {
 				if (jarImg != null)
 					jarImg.dispose();
 			}

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

 			public void removeListener(ILabelProviderListener listener) {
 				// no listeners supported
 			}
 		});

 		jars.addSelectionChangedListener(new ISelectionChangedListener() {
 			public void selectionChanged(SelectionChangedEvent event) {
 				updateButtons();
 			}
 		});

 		GridData gd = new GridData(GridData.FILL_BOTH);
 		// gd.widthHint = convertWidthInCharsToPixels(30);
 		// gd.heightHint = convertHeightInCharsToPixels(10);
 		jars.getControl().setLayoutData(gd);
 	}

 	private void updateButtons() {
 		btnRemove.setEnabled(!((StructuredSelection) jars.getSelection())
 				.isEmpty());
 		// getButton(IDialogConstants.OK_ID).setEnabled(modified);
 	}

 	private void createButtons(Composite c) {
 		btnBar = new Composite(c, SWT.NONE);
 		GridLayout gl = new GridLayout(1, false);
 		gl.marginHeight = 0;
 		gl.marginTop = 0;
 		gl.marginWidth = 0;
 		btnBar.setLayout(gl);
 		btnBar.setLayoutData(new GridData(GridData.END));

 		btnAdd = new Button(btnBar, SWT.NONE);
 		btnAdd.setText(Messages.JAXRSLibraryWizard_Add);
 		btnAdd.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_FILL
 				| GridData.VERTICAL_ALIGN_BEGINNING));
 		btnAdd.addSelectionListener(new SelectionAdapter() {
 			@SuppressWarnings("unchecked")
 			public void widgetSelected(SelectionEvent e) {
 				String cur = null;
 				String[] chosenJars = openExtJarFileDialog(cur);
 				if (chosenJars != null) {
 					for (int i = 0; i < chosenJars.length; i++) {
 						String jar = chosenJars[i];
 						if (!workingCopyLibrary.containsArchiveFile(jar)) {
 							ArchiveFile archive = JAXRSLibraryRegistryFactory.eINSTANCE
 									.createArchiveFile();
 							archive.setSourceLocation(jar);
 							archive.setRelativeDestLocation("WEB-INF/lib"); //$NON-NLS-1$
 							workingCopyLibrary.getArchiveFiles().add(archive);
 						}
 					}
 					jars.refresh();
 					validate();
 				}
 			}
 		});

 		btnRemove = new Button(btnBar, SWT.NONE);
 		btnRemove.setEnabled(false);
 		btnRemove.setText(Messages.JAXRSLibraryWizard_Remove);
 		btnRemove.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_FILL
 				| GridData.VERTICAL_ALIGN_BEGINNING));
 		btnRemove.addSelectionListener(new SelectionAdapter() {
 			@SuppressWarnings("unchecked")
 			public void widgetSelected(SelectionEvent e) {
 				if (jars.getSelection() instanceof StructuredSelection) {
 					StructuredSelection objs = (StructuredSelection) jars
 							.getSelection();
 					if (objs != null) {
 						Iterator it = objs.iterator();
 						while (it.hasNext()) {
 							Object obj = it.next();
 							ArchiveFile jar = (ArchiveFile) obj;
 							workingCopyLibrary.getArchiveFiles().remove(jar);
 						}
 					}
 					jars.refresh();
 					validate();
 				}
 			}
 		});
 	}

 	private String[] openExtJarFileDialog(String existing) {
 		String title = Messages.JAXRSLibraryWizard_ExtJarFileDialogTitle;

 		FileDialog dialog = new FileDialog(getShell(),
 				existing == null ? SWT.MULTI : SWT.SINGLE);
 		dialog.setText(title);
 		dialog.setFilterExtensions(new String[] { "*.jar;*.zip" }); //$NON-NLS-1$
 		// FIXME: remember and use last path chosen??
 		String filterPath = ResourcesPlugin.getWorkspace().getRoot()
 				.getFullPath().toString();
 		dialog.setFilterPath(filterPath);
 		// if (existing != null) {
 		// dialog.setFileName(existing.getPath().lastSegment());
 		// }

 		String res = dialog.open();
 		if (res == null) {
 			return null;
 		}
 		String[] fileNames = dialog.getFileNames();
 		String[] elems = new String[fileNames.length];
 		IPath file = new Path(res);
 		IPath apath = file.removeLastSegments(1);
 		for (int i = 0; i < fileNames.length; i++) {
 			elems[i] = apath.append(fileNames[i]).toString();
 		}
 		return elems;
 	}

 	public void modifyText(ModifyEvent e) {
 		validate();
 		updateButtons();
 	}

 	private void fireValidateEvent(
 			final JAXRSLibraryValidationEvent JAXRSLibraryValidationEvent) {
 		new Runnable() {
 			public void run() {
 				for (Iterator<JAXRSLibraryValidationListener> it = _listeners
 						.iterator(); it.hasNext();) {
 					JAXRSLibraryValidationListener listener = it.next();
 					listener.notifyValidation(JAXRSLibraryValidationEvent);
 				}
 			}
 		}.run();
 	}

 	public void widgetSelected(SelectionEvent e) {
 		validate();
 		updateButtons();
 	}

 	public void widgetDefaultSelected(SelectionEvent e) {
 		// no handling for default selection
 	}

 	private void validate() {
 		if (initing)
 			return;
 		validationMsg = null;
 		// setPageComplete(true);
 		if (!validateName() || !validateJars()) {
 			// setPageComplete(false);
 		}
 		fireValidateEvent(new JAXRSLibraryValidationEvent(validationMsg));
 	}

 	private boolean validateJars() {
 		if (workingCopyLibrary.getArchiveFiles().isEmpty()) {
 			validationMsg = Messages.JAXRSLibraryWizard_ValidateNoJars;
 			return false;
 		}
 		return true;
 	}

 	private boolean validateName() {
 		if (txtName.getText() == null || txtName.getText().trim().equals("")) { //$NON-NLS-1$
 			validationMsg = Messages.JAXRSLibraryWizard_ValidateNoLibraryName;
 			return false;
 		}
 		String aName = txtName.getText().trim();
 		if (isNew() || (!isNew() && !getCurrentLibraryName().equals(aName))) {
 			if (isNameInRegistry(JAXRSLibraryRegistryUtil.getInstance()
 					.getJAXRSLibraryRegistry().getAllJAXRSLibraries(), aName)) {
 				validationMsg = Messages.JAXRSLibraryWizard_ValidateExistingLibraryName;
 				return false;
 			}
 		}
 		return true;
 	}

 	private boolean isNew() {
 		if (_isNew == -1) {
 			_isNew = workingCopyLibrary.getName() == null ? 1 : 0;
 		}
 		return _isNew == 1;
 	}

 	private String getCurrentLibraryName() {
 		return workingCopyLibrary.getName();
 	}

 	@SuppressWarnings("unchecked")
 	private boolean isNameInRegistry(Collection c, String name) {
 		Iterator it = c.iterator();
 		while (it.hasNext()) {
 			JAXRSLibrary lib = (JAXRSLibrary) it.next();
 			if (lib.getName().equals(name)) {
 				return true;
 			}
 		}
 		return false;
 	}

 	/**
 	 * @return the trimmed name of the user input for JAXRS Library name
 	 */
 	public String getJAXRSLibraryName() {
 		return txtName.getText().trim();
 	}

 	/**
 	 * @return the value of the user input for the isDeployed checkbox
 	 */
 	public boolean getIsDeployed() {
 		return chkDeploy.getSelection();
 	}

 	/**
 	 * @return the value of the user input for the isJAXRSImplementation
 	 *         checkbox
 	 */

 }
	/*******************************************************************************
	* Copyright (c) 2009 IBM Corporation and others.
	* All rights reserved. This program and the accompanying materials
	* are made available under the terms of the Eclipse Public License v1.0
	* which accompanies this distribution, and is available at
	* http://www.eclipse.org/legal/epl-v10.html
	*
	* Contributors:
	* IBM Corporation - initial API and implementation
	* yyyymmdd bug Email and other contact information
	* -------- -------- -----------------------------------------------------------
	* 20091021 291954 ericdp@ca.ibm.com - Eric D. Peters, JAX-RS: Implement JAX-RS Facet
	*******************************************************************************/package org.eclipse.jst.ws.jaxrs.ui.internal.classpath;

	import java.util.Collection;
	import java.util.HashSet;
	import java.util.Iterator;
	import java.util.Set;

	import org.eclipse.core.resources.ResourcesPlugin;
	import org.eclipse.core.runtime.IPath;
	import org.eclipse.core.runtime.Path;
	import org.eclipse.jface.resource.ImageDescriptor;
	import org.eclipse.jface.viewers.ILabelProvider;
	import org.eclipse.jface.viewers.ILabelProviderListener;
	import org.eclipse.jface.viewers.ISelectionChangedListener;
	import org.eclipse.jface.viewers.IStructuredContentProvider;
	import org.eclipse.jface.viewers.SelectionChangedEvent;
	import org.eclipse.jface.viewers.StructuredSelection;
	import org.eclipse.jface.viewers.TableViewer;
	import org.eclipse.jface.viewers.Viewer;
	import org.eclipse.jst.ws.jaxrs.core.internal.jaxrsibraryregistry.ArchiveFile;
	import org.eclipse.jst.ws.jaxrs.core.internal.jaxrsibraryregistry.JAXRSLibraryRegistryFactory;
	import org.eclipse.jst.ws.jaxrs.core.internal.jaxrsibraryregistry.JAXRSLibrary;
	import org.eclipse.jst.ws.jaxrs.core.internal.jaxrslibraryconfig.JAXRSLibraryRegistryUtil;
	import org.eclipse.jst.ws.jaxrs.ui.internal.JAXRSUIPlugin;
	import org.eclipse.jst.ws.jaxrs.ui.internal.Messages;
	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.events.SelectionListener;
	import org.eclipse.swt.graphics.Image;
	import org.eclipse.swt.layout.GridData;
	import org.eclipse.swt.layout.GridLayout;
	import org.eclipse.swt.widgets.Button;
	import org.eclipse.swt.widgets.Composite;
	import org.eclipse.swt.widgets.FileDialog;
	import org.eclipse.swt.widgets.Group;
	import org.eclipse.swt.widgets.Label;
	import org.eclipse.swt.widgets.Text;

	/**
	* Common control for adding JAXRS Library instances
	*/
	@SuppressWarnings("restriction")
	public class JAXRSLibraryEditControl extends Composite implements
	ModifyListener, SelectionListener {
	private Text txtName;
	private Label lblName;
	// private CCombo cboVersions;
	// private Label lblVersions;
	private Button chkDeploy;
	// private Button chkImpl;
	private Composite btnBar;
	private Button btnAdd;
	private Button btnRemove;
	private TableViewer jars;

	private boolean initing = false;

	private JAXRSLibrary workingCopyLibrary;

	private String validationMsg;
	private Set<JAXRSLibraryValidationListener> _listeners;
	private int _isNew = -1;// use isNew() method.. not this variable directly

	/**
	* @param workingCopyLibrary
	* working copy of the JAXRS Library
	* @param parent
	* parent SWT control
	*/
	public JAXRSLibraryEditControl(JAXRSLibrary workingCopyLibrary,
	Composite parent) {
	super(parent, SWT.NONE);
	this.workingCopyLibrary = workingCopyLibrary;
	_listeners = new HashSet<JAXRSLibraryValidationListener>(1);
	createControl(parent);
	}

	/**
	* @param listener
	*/
	public void addValidationListener(JAXRSLibraryValidationListener listener) {
	removeValidationListener(listener);
	_listeners.add(listener);
	}

	/**
	* @param listener
	*/
	public void removeValidationListener(JAXRSLibraryValidationListener listener) {
	_listeners.remove(listener);
	}

	/**
	* @param parent
	*/
	public void createControl(Composite parent) {
	initing = true;

	// this = new Composite(parent, SWT.NONE);
	this.setLayout(new GridLayout(2, false));
	this.setLayoutData(new GridData(GridData.FILL_BOTH));

	lblName = new Label(this, SWT.NONE);
	lblName.setText(Messages.JAXRSLibraryWizard_LibraryName);
	lblName.setLayoutData(new GridData(GridData.BEGINNING));

	txtName = new Text(this, SWT.BORDER);
	txtName.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
	txtName.addModifyListener(this);

	// lblVersions = new Label(this, SWT.NONE);
	// lblVersions.setText(Messages.JAXRSLibraryWizard_VersionSupported);

	// cboVersions = new CCombo(this, SWT.SINGLE \| SWT.READ_ONLY \|
	// SWT.BORDER);
	// cboVersions.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
	// cboVersions.addModifyListener(this);

	Group jarsComp = new Group(this, SWT.NONE);
	jarsComp.setText(Messages.JAXRSLibraryWizard_LibraryJars);
	GridLayout gl1 = new GridLayout(2, false);
	jarsComp.setLayout(gl1);
	GridData gd2 = new GridData(GridData.FILL_HORIZONTAL
	\| GridData.FILL_VERTICAL);
	gd2.horizontalSpan = 2;
	jarsComp.setLayoutData(gd2);

	createJarsViewer(jarsComp);

	createButtons(jarsComp);

	// chkImpl = new Button(this, SWT.CHECK);
	// chkImpl.setText(Messages.JAXRSLibraryWizard_IsJAXRSImplementation);
	// GridData gd3 = new GridData();
	// gd3.horizontalSpan = 2;
	// chkImpl.setLayoutData(gd3);
	// chkImpl.addSelectionListener(this);

	chkDeploy = new Button(this, SWT.CHECK);
	chkDeploy.setText(Messages.JAXRSLibraryWizard_DeployJars);
	GridData gd4 = new GridData();
	gd4.horizontalSpan = 2;
	chkDeploy.setLayoutData(gd4);
	// chkDeploy.addSelectionListener(this);
	chkDeploy.setVisible(false);

	// loadVersions();

	if (!isNew()) {
	txtName.setText(workingCopyLibrary.getName());
	// if
	// (workingCopyLibrary.getJAXRSVersion().getName().equals(JAXRSVersion.UNKNOWN_LITERAL.getName()))
	// {
	// cboVersions.setText(Messages.JAXRSLibraryEditControl_ImplVersion_UNKNOWN);
	// } else {
	// cboVersions.setText(workingCopyLibrary.getJAXRSVersion().getName());
	// }
	chkDeploy.setSelection(workingCopyLibrary.isDeployed());
	// chkImpl.setSelection(workingCopyLibrary.isImplementation());
	}
	jars.setInput(workingCopyLibrary);

	initing = false;

	txtName.setFocus();
	}

	private void createJarsViewer(Group jarsComp) {
	jars = new TableViewer(jarsComp, SWT.BORDER \| SWT.MULTI);
	jars.setContentProvider(new IStructuredContentProvider() {
	public Object[] getElements(Object inputElement) {
	if (inputElement instanceof JAXRSLibrary)
	return ((JAXRSLibrary) inputElement).getArchiveFiles()
	.toArray();
	return new Object[0];
	}

	public void dispose() {
	// do nothing
	}

	public void inputChanged(Viewer viewer, Object oldInput,
	Object newInput) {
	// won't happen
	}
	});
	jars.setLabelProvider(new ILabelProvider() {
	private Image jarImg = null;

	public Image getImage(Object element) {
	if (jarImg == null) {
	ImageDescriptor desc = JAXRSUIPlugin
	.getImageDescriptor("obj16/jar_obj.gif"); //$NON-NLS-1$
	jarImg = desc.createImage();
	}
	return jarImg;
	}

	public String getText(Object element) {
	StringBuffer labelBuf = new StringBuffer();
	if (element instanceof ArchiveFile) {
	ArchiveFile archive = (ArchiveFile) element;
	labelBuf.append(archive.getName());
	if (!archive.exists())
	labelBuf
	.append(Messages.JAXRSLibrariesPreferencePage_MISSING_DESC);
	labelBuf.append(" - ").append(archive.getPath()); //$NON-NLS-1$
	}
	return labelBuf.toString();
	}

	public void addListener(ILabelProviderListener listener) {
	// no listeners supported
	}

	public void dispose() {
	if (jarImg != null)
	jarImg.dispose();
	}

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

	public void removeListener(ILabelProviderListener listener) {
	// no listeners supported
	}
	});

	jars.addSelectionChangedListener(new ISelectionChangedListener() {
	public void selectionChanged(SelectionChangedEvent event) {
	updateButtons();
	}
	});

	GridData gd = new GridData(GridData.FILL_BOTH);
	// gd.widthHint = convertWidthInCharsToPixels(30);
	// gd.heightHint = convertHeightInCharsToPixels(10);
	jars.getControl().setLayoutData(gd);
	}

	private void updateButtons() {
	btnRemove.setEnabled(!((StructuredSelection) jars.getSelection())
	.isEmpty());
	// getButton(IDialogConstants.OK_ID).setEnabled(modified);
	}

	private void createButtons(Composite c) {
	btnBar = new Composite(c, SWT.NONE);
	GridLayout gl = new GridLayout(1, false);
	gl.marginHeight = 0;
	gl.marginTop = 0;
	gl.marginWidth = 0;
	btnBar.setLayout(gl);
	btnBar.setLayoutData(new GridData(GridData.END));

	btnAdd = new Button(btnBar, SWT.NONE);
	btnAdd.setText(Messages.JAXRSLibraryWizard_Add);
	btnAdd.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_FILL
	\| GridData.VERTICAL_ALIGN_BEGINNING));
	btnAdd.addSelectionListener(new SelectionAdapter() {
	@SuppressWarnings("unchecked")
	public void widgetSelected(SelectionEvent e) {
	String cur = null;
	String[] chosenJars = openExtJarFileDialog(cur);
	if (chosenJars != null) {
	for (int i = 0; i < chosenJars.length; i++) {
	String jar = chosenJars[i];
	if (!workingCopyLibrary.containsArchiveFile(jar)) {
	ArchiveFile archive = JAXRSLibraryRegistryFactory.eINSTANCE
	.createArchiveFile();
	archive.setSourceLocation(jar);
	archive.setRelativeDestLocation("WEB-INF/lib"); //$NON-NLS-1$
	workingCopyLibrary.getArchiveFiles().add(archive);
	}
	}
	jars.refresh();
	validate();
	}
	}
	});

	btnRemove = new Button(btnBar, SWT.NONE);
	btnRemove.setEnabled(false);
	btnRemove.setText(Messages.JAXRSLibraryWizard_Remove);
	btnRemove.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_FILL
	\| GridData.VERTICAL_ALIGN_BEGINNING));
	btnRemove.addSelectionListener(new SelectionAdapter() {
	@SuppressWarnings("unchecked")
	public void widgetSelected(SelectionEvent e) {
	if (jars.getSelection() instanceof StructuredSelection) {
	StructuredSelection objs = (StructuredSelection) jars
	.getSelection();
	if (objs != null) {
	Iterator it = objs.iterator();
	while (it.hasNext()) {
	Object obj = it.next();
	ArchiveFile jar = (ArchiveFile) obj;
	workingCopyLibrary.getArchiveFiles().remove(jar);
	}
	}
	jars.refresh();
	validate();
	}
	}
	});
	}

	private String[] openExtJarFileDialog(String existing) {
	String title = Messages.JAXRSLibraryWizard_ExtJarFileDialogTitle;

	FileDialog dialog = new FileDialog(getShell(),
	existing == null ? SWT.MULTI : SWT.SINGLE);
	dialog.setText(title);
	dialog.setFilterExtensions(new String[] { ".jar;.zip" }); //$NON-NLS-1$
	// FIXME: remember and use last path chosen??
	String filterPath = ResourcesPlugin.getWorkspace().getRoot()
	.getFullPath().toString();
	dialog.setFilterPath(filterPath);
	// if (existing != null) {
	// dialog.setFileName(existing.getPath().lastSegment());
	// }

	String res = dialog.open();
	if (res == null) {
	return null;
	}
	String[] fileNames = dialog.getFileNames();
	String[] elems = new String[fileNames.length];
	IPath file = new Path(res);
	IPath apath = file.removeLastSegments(1);
	for (int i = 0; i < fileNames.length; i++) {
	elems[i] = apath.append(fileNames[i]).toString();
	}
	return elems;
	}

	public void modifyText(ModifyEvent e) {
	validate();
	updateButtons();
	}

	private void fireValidateEvent(
	final JAXRSLibraryValidationEvent JAXRSLibraryValidationEvent) {
	new Runnable() {
	public void run() {
	for (Iterator<JAXRSLibraryValidationListener> it = _listeners
	.iterator(); it.hasNext();) {
	JAXRSLibraryValidationListener listener = it.next();
	listener.notifyValidation(JAXRSLibraryValidationEvent);
	}
	}
	}.run();
	}

	public void widgetSelected(SelectionEvent e) {
	validate();
	updateButtons();
	}

	public void widgetDefaultSelected(SelectionEvent e) {
	// no handling for default selection
	}

	private void validate() {
	if (initing)
	return;
	validationMsg = null;
	// setPageComplete(true);
	if (!validateName() \|\| !validateJars()) {
	// setPageComplete(false);
	}
	fireValidateEvent(new JAXRSLibraryValidationEvent(validationMsg));
	}

	private boolean validateJars() {
	if (workingCopyLibrary.getArchiveFiles().isEmpty()) {
	validationMsg = Messages.JAXRSLibraryWizard_ValidateNoJars;
	return false;
	}
	return true;
	}

	private boolean validateName() {
	if (txtName.getText() == null \|\| txtName.getText().trim().equals("")) { //$NON-NLS-1$
	validationMsg = Messages.JAXRSLibraryWizard_ValidateNoLibraryName;
	return false;
	}
	String aName = txtName.getText().trim();
	if (isNew() \|\| (!isNew() && !getCurrentLibraryName().equals(aName))) {
	if (isNameInRegistry(JAXRSLibraryRegistryUtil.getInstance()
	.getJAXRSLibraryRegistry().getAllJAXRSLibraries(), aName)) {
	validationMsg = Messages.JAXRSLibraryWizard_ValidateExistingLibraryName;
	return false;
	}
	}
	return true;
	}

	private boolean isNew() {
	if (_isNew == -1) {
	_isNew = workingCopyLibrary.getName() == null ? 1 : 0;
	}
	return _isNew == 1;
	}

	private String getCurrentLibraryName() {
	return workingCopyLibrary.getName();
	}

	@SuppressWarnings("unchecked")
	private boolean isNameInRegistry(Collection c, String name) {
	Iterator it = c.iterator();
	while (it.hasNext()) {
	JAXRSLibrary lib = (JAXRSLibrary) it.next();
	if (lib.getName().equals(name)) {
	return true;
	}
	}
	return false;
	}

	/**
	* @return the trimmed name of the user input for JAXRS Library name
	*/
	public String getJAXRSLibraryName() {
	return txtName.getText().trim();
	}

	/**
	* @return the value of the user input for the isDeployed checkbox
	*/
	public boolean getIsDeployed() {
	return chkDeploy.getSelection();
	}

	/**
	* @return the value of the user input for the isJAXRSImplementation
	* checkbox
	*/

	}