core/org.eclipse.ptp.launch/src/org/eclipse/ptp/launch/ui/ResourcesTab.java - ptp/org.eclipse.ptp - Git at Google

 /*******************************************************************************
  * Copyright (c) 2005 The Regents of the University of California.
  * This material was produced under U.S. Government contract W-7405-ENG-36
  * for Los Alamos National Laboratory, which is operated by the University
  * of California for the U.S. Department of Energy. The U.S. Government has
  * rights to use, reproduce, and distribute this software. NEITHER THE
  * GOVERNMENT NOR THE UNIVERSITY MAKES ANY WARRANTY, EXPRESS OR IMPLIED, OR
  * ASSUMES ANY LIABILITY FOR THE USE OF THIS SOFTWARE. If software is modified
  * to produce derivative works, such modified software should be clearly marked,
  * so as not to confuse it with the version available from LANL.
  *
  * Additionally, 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
  *
  * LA-CC 04-115
  *******************************************************************************/
 package org.eclipse.ptp.launch.ui;

 import java.util.HashMap;
 import java.util.Map;

 import org.eclipse.core.runtime.CoreException;
 import org.eclipse.debug.core.ILaunchConfiguration;
 import org.eclipse.debug.core.ILaunchConfigurationWorkingCopy;
 import org.eclipse.debug.ui.ILaunchConfigurationDialog;
 import org.eclipse.osgi.util.NLS;
 import org.eclipse.ptp.core.IModelManager;
 import org.eclipse.ptp.core.IPTPLaunchConfigurationConstants;
 import org.eclipse.ptp.core.PTPCorePlugin;
 import org.eclipse.ptp.core.elements.IPQueue;
 import org.eclipse.ptp.core.elements.IPUniverse;
 import org.eclipse.ptp.core.elements.IResourceManager;
 import org.eclipse.ptp.core.elements.attributes.ResourceManagerAttributes.State;
 import org.eclipse.ptp.launch.PTPLaunchPlugin;
 import org.eclipse.ptp.launch.messages.Messages;
 import org.eclipse.ptp.launch.ui.extensions.AbstractRMLaunchConfigurationFactory;
 import org.eclipse.ptp.launch.ui.extensions.IRMLaunchConfigurationContentsChangedListener;
 import org.eclipse.ptp.launch.ui.extensions.IRMLaunchConfigurationDynamicTab;
 import org.eclipse.ptp.launch.ui.extensions.RMLaunchValidation;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.custom.ScrolledComposite;
 import org.eclipse.swt.events.SelectionEvent;
 import org.eclipse.swt.events.SelectionListener;
 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.Combo;
 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.swt.widgets.Control;
 import org.eclipse.swt.widgets.Group;
 import org.eclipse.swt.widgets.Label;

 /**
  * The Resources tab is used to specify the resources required for a successful
  * job launch. It is populated by the selected resource manager (specified in
  * the Main tab)
  */
 public class ResourcesTab extends LaunchConfigurationTab {
 	private final class ContentsChangedListener implements IRMLaunchConfigurationContentsChangedListener {

 		public void handleContentsChanged(IRMLaunchConfigurationDynamicTab rmDynamicTab) {
 			// The buttons and messages have to be updated based on anything
 			// that has changed in the dynamic portion of the launch tab.
 			updateLaunchConfigurationDialog();
 		}
 	}

 	/**
 	 * @since 4.0
 	 */
 	public static final String TAB_ID = "org.eclipse.ptp.launch.applicationLaunch.resourcesTab"; //$NON-NLS-1$

 	private Combo resourceManagerCombo = null;

 	private IResourceManager resourceManager = null;
 	private final Map<Integer, IResourceManager> resourceManagers = new HashMap<Integer, IResourceManager>();
 	private final HashMap<IResourceManager, Integer> resourceManagerIndices = new HashMap<IResourceManager, Integer>();
 	// The composite that holds the RM's attributes for the launch configuration
 	private ScrolledComposite launchAttrsScrollComposite;

 	private final Map<IResourceManager, IRMLaunchConfigurationDynamicTab> rmDynamicTabs = new HashMap<IResourceManager, IRMLaunchConfigurationDynamicTab>();

 	private final ContentsChangedListener launchContentsChangedListener = new ContentsChangedListener();

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see org.eclipse.debug.ui.AbstractLaunchConfigurationTab#canSave()
 	 */
 	@Override
 	public boolean canSave() {
 		setErrorMessage(null);
 		if (resourceManager == null) {
 			setErrorMessage(Messages.ResourcesTab_No_Resource_Manager);
 			return false;
 		}
 		IRMLaunchConfigurationDynamicTab rmDynamicTab = getRMLaunchConfigurationDynamicTab(resourceManager);
 		final Composite launchComp = getLaunchAttrsScrollComposite();
 		if (rmDynamicTab == null || launchComp == null) {
 			setErrorMessage(NLS.bind(Messages.ResourcesTab_No_Launch_Configuration, new Object[] { resourceManager.getName() }));
 			return false;
 		}
 		RMLaunchValidation validation = rmDynamicTab.canSave(launchComp, resourceManager, null);
 		if (!validation.isSuccess()) {
 			setErrorMessage(validation.getMessage());
 			return false;
 		}
 		return true;
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see
 	 * org.eclipse.debug.ui.ILaunchConfigurationTab#createControl(org.eclipse
 	 * .swt.widgets.Composite)
 	 */
 	public void createControl(Composite parent) {
 		final int numColumns = 2;
 		final Composite comp = new Composite(parent, SWT.NONE);
 		setControl(comp);

 		GridLayout layout = new GridLayout(2, false);
 		comp.setLayout(layout);
 		GridData gd = new GridData(GridData.FILL_HORIZONTAL);
 		comp.setLayoutData(gd);

 		IModelManager modelManager = PTPCorePlugin.getDefault().getModelManager();
 		IPUniverse universe = modelManager.getUniverse();
 		IResourceManager[] rms = universe.getResourceManagers();
 		new Label(comp, SWT.NONE).setText(Messages.ApplicationTab_RM_Selection_Label);

 		resourceManagerCombo = new Combo(comp, SWT.READ_ONLY);
 		gd = new GridData(GridData.FILL_HORIZONTAL);
 		resourceManagerCombo.setLayoutData(gd);
 		for (int i = 0; i < rms.length; i++) {
 			resourceManagerCombo.add(rms[i].getName());
 			resourceManagers.put(i, rms[i]);
 			resourceManagerIndices.put(rms[i], i);
 		}
 		resourceManagerCombo.addSelectionListener(new SelectionListener() {
 			public void widgetDefaultSelected(SelectionEvent e) {
 			}

 			public void widgetSelected(SelectionEvent e) {
 				if (e.getSource() == resourceManagerCombo) {
 					rmSelectionChanged();
 					updateLaunchAttributeControls(resourceManager, null, getLaunchConfiguration());
 					updateLaunchConfigurationDialog();
 				}
 			}
 		});
 		resourceManagerCombo.deselectAll();

 		createVerticalSpacer(comp, 2);

 		// The composite that holds the RM's attributes for the launch
 		// configuration
 		Group attrGroup = new Group(comp, SWT.NONE);
 		attrGroup.setText(Messages.ResourcesTab_Launch_Attributes);
 		gd = new GridData(SWT.FILL, SWT.FILL, true, true);
 		gd.horizontalSpan = numColumns;
 		attrGroup.setLayoutData(gd);
 		GridLayout gridLayout = new GridLayout();
 		gridLayout.numColumns = 1;
 		attrGroup.setLayout(gridLayout);

 		final ScrolledComposite scrollComp = createLaunchAttributeControlComposite(attrGroup, numColumns);
 		setLaunchAttrsScrollComposite(scrollComp);
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see org.eclipse.debug.ui.AbstractLaunchConfigurationTab#getId()
 	 */
 	@Override
 	public String getId() {
 		return TAB_ID;
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see org.eclipse.debug.ui.AbstractLaunchConfigurationTab#getImage()
 	 */
 	@Override
 	public Image getImage() {
 		return LaunchImages.getImage(LaunchImages.IMG_PARALLEL_TAB);
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see org.eclipse.debug.ui.ILaunchConfigurationTab#getName()
 	 */
 	public String getName() {
 		return Messages.ResourcesTab_Resources;
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see
 	 * org.eclipse.debug.ui.ILaunchConfigurationTab#initializeFrom(org.eclipse
 	 * .debug.core.ILaunchConfiguration)
 	 */
 	@Override
 	public void initializeFrom(ILaunchConfiguration configuration) {
 		super.initializeFrom(configuration);

 		resourceManager = getResourceManager(configuration);
 		if (resourceManager == null) {
 			setErrorMessage(Messages.ApplicationTab_No_Resource_Manager_Available);
 			return;
 		}

 		setResourceManagerComboSelection(resourceManager);
 		if (resourceManager == null) {
 			setErrorMessage(Messages.ApplicationTab_No_Resource_Manager_Available);
 			return;
 		}

 		IRMLaunchConfigurationDynamicTab rmDynamicTab = getRMLaunchConfigurationDynamicTab(resourceManager);
 		final Composite launchComp = getLaunchAttrsScrollComposite();
 		if (rmDynamicTab == null || launchComp == null) {
 			setErrorMessage(NLS.bind(Messages.ResourcesTab_No_Launch_Configuration, new Object[] { resourceManager.getName() }));
 			return;
 		}

 		// Update the dynamic portions of the launch configuration
 		// tab.
 		updateLaunchAttributeControls(resourceManager, null, getLaunchConfiguration());
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see
 	 * org.eclipse.debug.ui.AbstractLaunchConfigurationTab#isValid(org.eclipse
 	 * .debug.core.ILaunchConfiguration)
 	 */
 	@Override
 	public boolean isValid(ILaunchConfiguration configuration) {
 		setErrorMessage(null);
 		setMessage(null);
 		if (resourceManager == null) {
 			setErrorMessage(Messages.ResourcesTab_No_Resource_Manager);
 			return false;
 		}
 		IRMLaunchConfigurationDynamicTab rmDynamicTab = getRMLaunchConfigurationDynamicTab(resourceManager);
 		if (rmDynamicTab == null) {
 			setErrorMessage(NLS.bind(Messages.ResourcesTab_No_Launch_Configuration, new Object[] { resourceManager.getName() }));
 			return false;
 		}
 		if (resourceManager.getState() != State.STARTED) {
 			setErrorMessage(Messages.ResourcesTab_Resource_Manager_Not_Started);
 			return false;
 		}
 		RMLaunchValidation validation = rmDynamicTab.isValid(configuration, resourceManager, null);
 		if (!validation.isSuccess()) {
 			setErrorMessage(validation.getMessage());
 			return false;
 		}

 		return true;
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see
 	 * org.eclipse.debug.ui.ILaunchConfigurationTab#performApply(org.eclipse
 	 * .debug.core.ILaunchConfigurationWorkingCopy)
 	 */
 	public void performApply(ILaunchConfigurationWorkingCopy configuration) {
 		if (resourceManager != null) {
 			configuration.setAttribute(IPTPLaunchConfigurationConstants.ATTR_RESOURCE_MANAGER_UNIQUENAME,
 					resourceManager.getUniqueName());
 			IRMLaunchConfigurationDynamicTab rmDynamicTab = getRMLaunchConfigurationDynamicTab(resourceManager);
 			if (rmDynamicTab == null) {
 				setErrorMessage(NLS.bind(Messages.ResourcesTab_No_Launch_Configuration, new Object[] { resourceManager.getName() }));
 				return;
 			}
 			RMLaunchValidation validation = rmDynamicTab.performApply(configuration, resourceManager, null);
 			if (!validation.isSuccess()) {
 				setErrorMessage(validation.getMessage());
 				return;
 			}
 		}

 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see
 	 * org.eclipse.debug.ui.ILaunchConfigurationTab#setDefaults(org.eclipse.
 	 * debug.core.ILaunchConfigurationWorkingCopy)
 	 */
 	public void setDefaults(ILaunchConfigurationWorkingCopy configuration) {
 		IResourceManager rm = getResourceManagerDefault();
 		if (rm == null) {
 			setErrorMessage(Messages.ResourcesTab_No_Resource_Manager);
 			return;
 		}
 		String rmName = rm.getUniqueName();
 		configuration.setAttribute(IPTPLaunchConfigurationConstants.ATTR_RESOURCE_MANAGER_UNIQUENAME, rmName);

 		IRMLaunchConfigurationDynamicTab rmDynamicTab = getRMLaunchConfigurationDynamicTab(rm);
 		if (rmDynamicTab == null)
 			setErrorMessage(NLS.bind(Messages.ResourcesTab_No_Launch_Configuration, new Object[] { resourceManager.getName() }));
 		else
 			rmDynamicTab.setDefaults(configuration, rm, null);
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see org.eclipse.debug.ui.AbstractLaunchConfigurationTab#
 	 * setLaunchConfigurationDialog
 	 * (org.eclipse.debug.ui.ILaunchConfigurationDialog)
 	 */
 	@Override
 	public void setLaunchConfigurationDialog(ILaunchConfigurationDialog dialog) {
 		super.setLaunchConfigurationDialog(dialog);
 	}

 	/**
 	 * @param parent
 	 * @param colspan
 	 * @return
 	 */
 	private ScrolledComposite createLaunchAttributeControlComposite(Composite parent, int colspan) {
 		ScrolledComposite attrComp = new ScrolledComposite(parent, SWT.H_SCROLL | SWT.V_SCROLL);
 		GridData gridData = new GridData(SWT.FILL, SWT.FILL, true, true);
 		gridData.horizontalSpan = colspan;
 		attrComp.setLayoutData(gridData);
 		attrComp.setExpandHorizontal(true);
 		attrComp.setExpandVertical(true);
 		return attrComp;
 	}

 	/**
 	 * Create a new dynamic tab, given the resource manager.
 	 *
 	 * @param rm
 	 * @return
 	 * @throws CoreException
 	 */
 	private IRMLaunchConfigurationDynamicTab createRMLaunchConfigurationDynamicTab(final IResourceManager rm) throws CoreException {

 		final AbstractRMLaunchConfigurationFactory rmFactory = PTPLaunchPlugin.getDefault().getRMLaunchConfigurationFactory(rm);
 		if (rmFactory == null)
 			return null;
 		IRMLaunchConfigurationDynamicTab rmDynamicTab = rmFactory.create(rm);
 		if (rmDynamicTab == null)
 			return null;
 		rmDynamicTab.addContentsChangedListener(launchContentsChangedListener);
 		return rmDynamicTab;
 	}

 	/**
 	 * @return
 	 */
 	private ScrolledComposite getLaunchAttrsScrollComposite() {
 		return launchAttrsScrollComposite;
 	}

 	/**
 	 * Find a default resource manager. If there is only one, then it is the
 	 * default. If there are more or less than one, there is no default.
 	 *
 	 * @return resource manager
 	 */
 	private IResourceManager getResourceManagerDefault() {
 		IModelManager modelManager = PTPCorePlugin.getDefault().getModelManager();
 		IPUniverse universe = modelManager.getUniverse();
 		if (universe != null) {
 			IResourceManager[] rms = universe.getResourceManagers();
 			if (rms.length != 1)
 				return null;
 			return rms[0];
 		}
 		return null;
 	}

 	/**
 	 * @return
 	 */
 	private IResourceManager getResourceManagerFromCombo() {
 		if (resourceManagerCombo != null) {
 			int i = resourceManagerCombo.getSelectionIndex();
 			return resourceManagers.get(i);
 		}
 		return null;
 	}

 	/**
 	 * Returns a cached launch configuration dynamic tab. If it isn't in the
 	 * cache then it creates a new one, and puts it in the cache.
 	 *
 	 * @param rm
 	 * @return
 	 */
 	private IRMLaunchConfigurationDynamicTab getRMLaunchConfigurationDynamicTab(final IResourceManager rm) {
 		if (!rmDynamicTabs.containsKey(rm))
 			try {
 				IRMLaunchConfigurationDynamicTab rmDynamicTab = createRMLaunchConfigurationDynamicTab(rm);
 				rmDynamicTabs.put(rm, rmDynamicTab);
 				return rmDynamicTab;
 			} catch (CoreException e) {
 				setErrorMessage(e.getMessage());
 				PTPLaunchPlugin.errorDialog(e.getMessage(), e);
 				return null;
 			}
 		return rmDynamicTabs.get(rm);
 	}

 	/**
 	 * Handle selection of a resource manager
 	 */
 	private void rmSelectionChanged() {
 		resourceManager = getResourceManagerFromCombo();
 	}

 	/**
 	 * @param comp
 	 */
 	private void setLaunchAttrsScrollComposite(ScrolledComposite comp) {
 		this.launchAttrsScrollComposite = comp;
 	}

 	/**
 	 * Given a resource manager, select it in the combo
 	 *
 	 * @param resource
 	 *            manager
 	 */
 	private void setResourceManagerComboSelection(IResourceManager rm) {
 		final Integer results = resourceManagerIndices.get(rm);
 		int i = 0;
 		if (results != null)
 			i = results.intValue();
 		resourceManagerCombo.select(i);
 		rmSelectionChanged();
 	}

 	/**
 	 * This routine is called when the resource manager has been changed via the
 	 * combo boxes. It's job is to regenerate the dynamic ui components,
 	 * dependent on the resource manager choice.
 	 *
 	 * @param rm
 	 * @param queue
 	 * @param launchConfiguration
 	 */
 	private void updateLaunchAttributeControls(IResourceManager rm, IPQueue queue, ILaunchConfiguration launchConfiguration) {
 		final ScrolledComposite launchAttrsScrollComp = getLaunchAttrsScrollComposite();
 		launchAttrsScrollComp.setContent(null);
 		for (Control child : launchAttrsScrollComp.getChildren())
 			child.dispose();
 		IRMLaunchConfigurationDynamicTab rmDynamicTab = getRMLaunchConfigurationDynamicTab(rm);
 		if (rmDynamicTab != null)
 			try {
 				rmDynamicTab.createControl(launchAttrsScrollComp, rm, queue);
 				final Control dynControl = rmDynamicTab.getControl();
 				launchAttrsScrollComp.setContent(dynControl);
 				Point size = dynControl.computeSize(SWT.DEFAULT, SWT.DEFAULT);
 				launchAttrsScrollComp.setMinSize(size);
 				rmDynamicTab.initializeFrom(launchAttrsScrollComp, rm, queue, launchConfiguration);
 			} catch (CoreException e) {
 				setErrorMessage(e.getMessage());
 				PTPLaunchPlugin.errorDialog(e.getMessage(), e);
 			}
 		launchAttrsScrollComp.layout(true);
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2005 The Regents of the University of California.
	* This material was produced under U.S. Government contract W-7405-ENG-36
	* for Los Alamos National Laboratory, which is operated by the University
	* of California for the U.S. Department of Energy. The U.S. Government has
	* rights to use, reproduce, and distribute this software. NEITHER THE
	* GOVERNMENT NOR THE UNIVERSITY MAKES ANY WARRANTY, EXPRESS OR IMPLIED, OR
	* ASSUMES ANY LIABILITY FOR THE USE OF THIS SOFTWARE. If software is modified
	* to produce derivative works, such modified software should be clearly marked,
	* so as not to confuse it with the version available from LANL.
	*
	* Additionally, 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
	*
	* LA-CC 04-115
	*******************************************************************************/
	package org.eclipse.ptp.launch.ui;

	import java.util.HashMap;
	import java.util.Map;

	import org.eclipse.core.runtime.CoreException;
	import org.eclipse.debug.core.ILaunchConfiguration;
	import org.eclipse.debug.core.ILaunchConfigurationWorkingCopy;
	import org.eclipse.debug.ui.ILaunchConfigurationDialog;
	import org.eclipse.osgi.util.NLS;
	import org.eclipse.ptp.core.IModelManager;
	import org.eclipse.ptp.core.IPTPLaunchConfigurationConstants;
	import org.eclipse.ptp.core.PTPCorePlugin;
	import org.eclipse.ptp.core.elements.IPQueue;
	import org.eclipse.ptp.core.elements.IPUniverse;
	import org.eclipse.ptp.core.elements.IResourceManager;
	import org.eclipse.ptp.core.elements.attributes.ResourceManagerAttributes.State;
	import org.eclipse.ptp.launch.PTPLaunchPlugin;
	import org.eclipse.ptp.launch.messages.Messages;
	import org.eclipse.ptp.launch.ui.extensions.AbstractRMLaunchConfigurationFactory;
	import org.eclipse.ptp.launch.ui.extensions.IRMLaunchConfigurationContentsChangedListener;
	import org.eclipse.ptp.launch.ui.extensions.IRMLaunchConfigurationDynamicTab;
	import org.eclipse.ptp.launch.ui.extensions.RMLaunchValidation;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.custom.ScrolledComposite;
	import org.eclipse.swt.events.SelectionEvent;
	import org.eclipse.swt.events.SelectionListener;
	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.Combo;
	import org.eclipse.swt.widgets.Composite;
	import org.eclipse.swt.widgets.Control;
	import org.eclipse.swt.widgets.Group;
	import org.eclipse.swt.widgets.Label;

	/**
	* The Resources tab is used to specify the resources required for a successful
	* job launch. It is populated by the selected resource manager (specified in
	* the Main tab)
	*/
	public class ResourcesTab extends LaunchConfigurationTab {
	private final class ContentsChangedListener implements IRMLaunchConfigurationContentsChangedListener {

	public void handleContentsChanged(IRMLaunchConfigurationDynamicTab rmDynamicTab) {
	// The buttons and messages have to be updated based on anything
	// that has changed in the dynamic portion of the launch tab.
	updateLaunchConfigurationDialog();
	}
	}

	/**
	* @since 4.0
	*/
	public static final String TAB_ID = "org.eclipse.ptp.launch.applicationLaunch.resourcesTab"; //$NON-NLS-1$

	private Combo resourceManagerCombo = null;

	private IResourceManager resourceManager = null;
	private final Map<Integer, IResourceManager> resourceManagers = new HashMap<Integer, IResourceManager>();
	private final HashMap<IResourceManager, Integer> resourceManagerIndices = new HashMap<IResourceManager, Integer>();
	// The composite that holds the RM's attributes for the launch configuration
	private ScrolledComposite launchAttrsScrollComposite;

	private final Map<IResourceManager, IRMLaunchConfigurationDynamicTab> rmDynamicTabs = new HashMap<IResourceManager, IRMLaunchConfigurationDynamicTab>();

	private final ContentsChangedListener launchContentsChangedListener = new ContentsChangedListener();

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.debug.ui.AbstractLaunchConfigurationTab#canSave()
	*/
	@Override
	public boolean canSave() {
	setErrorMessage(null);
	if (resourceManager == null) {
	setErrorMessage(Messages.ResourcesTab_No_Resource_Manager);
	return false;
	}
	IRMLaunchConfigurationDynamicTab rmDynamicTab = getRMLaunchConfigurationDynamicTab(resourceManager);
	final Composite launchComp = getLaunchAttrsScrollComposite();
	if (rmDynamicTab == null \|\| launchComp == null) {
	setErrorMessage(NLS.bind(Messages.ResourcesTab_No_Launch_Configuration, new Object[] { resourceManager.getName() }));
	return false;
	}
	RMLaunchValidation validation = rmDynamicTab.canSave(launchComp, resourceManager, null);
	if (!validation.isSuccess()) {
	setErrorMessage(validation.getMessage());
	return false;
	}
	return true;
	}

	/*
	* (non-Javadoc)
	*
	* @see
	* org.eclipse.debug.ui.ILaunchConfigurationTab#createControl(org.eclipse
	* .swt.widgets.Composite)
	*/
	public void createControl(Composite parent) {
	final int numColumns = 2;
	final Composite comp = new Composite(parent, SWT.NONE);
	setControl(comp);

	GridLayout layout = new GridLayout(2, false);
	comp.setLayout(layout);
	GridData gd = new GridData(GridData.FILL_HORIZONTAL);
	comp.setLayoutData(gd);

	IModelManager modelManager = PTPCorePlugin.getDefault().getModelManager();
	IPUniverse universe = modelManager.getUniverse();
	IResourceManager[] rms = universe.getResourceManagers();
	new Label(comp, SWT.NONE).setText(Messages.ApplicationTab_RM_Selection_Label);

	resourceManagerCombo = new Combo(comp, SWT.READ_ONLY);
	gd = new GridData(GridData.FILL_HORIZONTAL);
	resourceManagerCombo.setLayoutData(gd);
	for (int i = 0; i < rms.length; i++) {
	resourceManagerCombo.add(rms[i].getName());
	resourceManagers.put(i, rms[i]);
	resourceManagerIndices.put(rms[i], i);
	}
	resourceManagerCombo.addSelectionListener(new SelectionListener() {
	public void widgetDefaultSelected(SelectionEvent e) {
	}

	public void widgetSelected(SelectionEvent e) {
	if (e.getSource() == resourceManagerCombo) {
	rmSelectionChanged();
	updateLaunchAttributeControls(resourceManager, null, getLaunchConfiguration());
	updateLaunchConfigurationDialog();
	}
	}
	});
	resourceManagerCombo.deselectAll();

	createVerticalSpacer(comp, 2);

	// The composite that holds the RM's attributes for the launch
	// configuration
	Group attrGroup = new Group(comp, SWT.NONE);
	attrGroup.setText(Messages.ResourcesTab_Launch_Attributes);
	gd = new GridData(SWT.FILL, SWT.FILL, true, true);
	gd.horizontalSpan = numColumns;
	attrGroup.setLayoutData(gd);
	GridLayout gridLayout = new GridLayout();
	gridLayout.numColumns = 1;
	attrGroup.setLayout(gridLayout);

	final ScrolledComposite scrollComp = createLaunchAttributeControlComposite(attrGroup, numColumns);
	setLaunchAttrsScrollComposite(scrollComp);
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.debug.ui.AbstractLaunchConfigurationTab#getId()
	*/
	@Override
	public String getId() {
	return TAB_ID;
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.debug.ui.AbstractLaunchConfigurationTab#getImage()
	*/
	@Override
	public Image getImage() {
	return LaunchImages.getImage(LaunchImages.IMG_PARALLEL_TAB);
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.debug.ui.ILaunchConfigurationTab#getName()
	*/
	public String getName() {
	return Messages.ResourcesTab_Resources;
	}

	/*
	* (non-Javadoc)
	*
	* @see
	* org.eclipse.debug.ui.ILaunchConfigurationTab#initializeFrom(org.eclipse
	* .debug.core.ILaunchConfiguration)
	*/
	@Override
	public void initializeFrom(ILaunchConfiguration configuration) {
	super.initializeFrom(configuration);

	resourceManager = getResourceManager(configuration);
	if (resourceManager == null) {
	setErrorMessage(Messages.ApplicationTab_No_Resource_Manager_Available);
	return;
	}

	setResourceManagerComboSelection(resourceManager);
	if (resourceManager == null) {
	setErrorMessage(Messages.ApplicationTab_No_Resource_Manager_Available);
	return;
	}

	IRMLaunchConfigurationDynamicTab rmDynamicTab = getRMLaunchConfigurationDynamicTab(resourceManager);
	final Composite launchComp = getLaunchAttrsScrollComposite();
	if (rmDynamicTab == null \|\| launchComp == null) {
	setErrorMessage(NLS.bind(Messages.ResourcesTab_No_Launch_Configuration, new Object[] { resourceManager.getName() }));
	return;
	}

	// Update the dynamic portions of the launch configuration
	// tab.
	updateLaunchAttributeControls(resourceManager, null, getLaunchConfiguration());
	}

	/*
	* (non-Javadoc)
	*
	* @see
	* org.eclipse.debug.ui.AbstractLaunchConfigurationTab#isValid(org.eclipse
	* .debug.core.ILaunchConfiguration)
	*/
	@Override
	public boolean isValid(ILaunchConfiguration configuration) {
	setErrorMessage(null);
	setMessage(null);
	if (resourceManager == null) {
	setErrorMessage(Messages.ResourcesTab_No_Resource_Manager);
	return false;
	}
	IRMLaunchConfigurationDynamicTab rmDynamicTab = getRMLaunchConfigurationDynamicTab(resourceManager);
	if (rmDynamicTab == null) {
	setErrorMessage(NLS.bind(Messages.ResourcesTab_No_Launch_Configuration, new Object[] { resourceManager.getName() }));
	return false;
	}
	if (resourceManager.getState() != State.STARTED) {
	setErrorMessage(Messages.ResourcesTab_Resource_Manager_Not_Started);
	return false;
	}
	RMLaunchValidation validation = rmDynamicTab.isValid(configuration, resourceManager, null);
	if (!validation.isSuccess()) {
	setErrorMessage(validation.getMessage());
	return false;
	}

	return true;
	}

	/*
	* (non-Javadoc)
	*
	* @see
	* org.eclipse.debug.ui.ILaunchConfigurationTab#performApply(org.eclipse
	* .debug.core.ILaunchConfigurationWorkingCopy)
	*/
	public void performApply(ILaunchConfigurationWorkingCopy configuration) {
	if (resourceManager != null) {
	configuration.setAttribute(IPTPLaunchConfigurationConstants.ATTR_RESOURCE_MANAGER_UNIQUENAME,
	resourceManager.getUniqueName());
	IRMLaunchConfigurationDynamicTab rmDynamicTab = getRMLaunchConfigurationDynamicTab(resourceManager);
	if (rmDynamicTab == null) {
	setErrorMessage(NLS.bind(Messages.ResourcesTab_No_Launch_Configuration, new Object[] { resourceManager.getName() }));
	return;
	}
	RMLaunchValidation validation = rmDynamicTab.performApply(configuration, resourceManager, null);
	if (!validation.isSuccess()) {
	setErrorMessage(validation.getMessage());
	return;
	}
	}

	}

	/*
	* (non-Javadoc)
	*
	* @see
	* org.eclipse.debug.ui.ILaunchConfigurationTab#setDefaults(org.eclipse.
	* debug.core.ILaunchConfigurationWorkingCopy)
	*/
	public void setDefaults(ILaunchConfigurationWorkingCopy configuration) {
	IResourceManager rm = getResourceManagerDefault();
	if (rm == null) {
	setErrorMessage(Messages.ResourcesTab_No_Resource_Manager);
	return;
	}
	String rmName = rm.getUniqueName();
	configuration.setAttribute(IPTPLaunchConfigurationConstants.ATTR_RESOURCE_MANAGER_UNIQUENAME, rmName);

	IRMLaunchConfigurationDynamicTab rmDynamicTab = getRMLaunchConfigurationDynamicTab(rm);
	if (rmDynamicTab == null)
	setErrorMessage(NLS.bind(Messages.ResourcesTab_No_Launch_Configuration, new Object[] { resourceManager.getName() }));
	else
	rmDynamicTab.setDefaults(configuration, rm, null);
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.debug.ui.AbstractLaunchConfigurationTab#
	* setLaunchConfigurationDialog
	* (org.eclipse.debug.ui.ILaunchConfigurationDialog)
	*/
	@Override
	public void setLaunchConfigurationDialog(ILaunchConfigurationDialog dialog) {
	super.setLaunchConfigurationDialog(dialog);
	}

	/**
	* @param parent
	* @param colspan
	* @return
	*/
	private ScrolledComposite createLaunchAttributeControlComposite(Composite parent, int colspan) {
	ScrolledComposite attrComp = new ScrolledComposite(parent, SWT.H_SCROLL \| SWT.V_SCROLL);
	GridData gridData = new GridData(SWT.FILL, SWT.FILL, true, true);
	gridData.horizontalSpan = colspan;
	attrComp.setLayoutData(gridData);
	attrComp.setExpandHorizontal(true);
	attrComp.setExpandVertical(true);
	return attrComp;
	}

	/**
	* Create a new dynamic tab, given the resource manager.
	*
	* @param rm
	* @return
	* @throws CoreException
	*/
	private IRMLaunchConfigurationDynamicTab createRMLaunchConfigurationDynamicTab(final IResourceManager rm) throws CoreException {

	final AbstractRMLaunchConfigurationFactory rmFactory = PTPLaunchPlugin.getDefault().getRMLaunchConfigurationFactory(rm);
	if (rmFactory == null)
	return null;
	IRMLaunchConfigurationDynamicTab rmDynamicTab = rmFactory.create(rm);
	if (rmDynamicTab == null)
	return null;
	rmDynamicTab.addContentsChangedListener(launchContentsChangedListener);
	return rmDynamicTab;
	}

	/**
	* @return
	*/
	private ScrolledComposite getLaunchAttrsScrollComposite() {
	return launchAttrsScrollComposite;
	}

	/**
	* Find a default resource manager. If there is only one, then it is the
	* default. If there are more or less than one, there is no default.
	*
	* @return resource manager
	*/
	private IResourceManager getResourceManagerDefault() {
	IModelManager modelManager = PTPCorePlugin.getDefault().getModelManager();
	IPUniverse universe = modelManager.getUniverse();
	if (universe != null) {
	IResourceManager[] rms = universe.getResourceManagers();
	if (rms.length != 1)
	return null;
	return rms[0];
	}
	return null;
	}

	/**
	* @return
	*/
	private IResourceManager getResourceManagerFromCombo() {
	if (resourceManagerCombo != null) {
	int i = resourceManagerCombo.getSelectionIndex();
	return resourceManagers.get(i);
	}
	return null;
	}

	/**
	* Returns a cached launch configuration dynamic tab. If it isn't in the
	* cache then it creates a new one, and puts it in the cache.
	*
	* @param rm
	* @return
	*/
	private IRMLaunchConfigurationDynamicTab getRMLaunchConfigurationDynamicTab(final IResourceManager rm) {
	if (!rmDynamicTabs.containsKey(rm))
	try {
	IRMLaunchConfigurationDynamicTab rmDynamicTab = createRMLaunchConfigurationDynamicTab(rm);
	rmDynamicTabs.put(rm, rmDynamicTab);
	return rmDynamicTab;
	} catch (CoreException e) {
	setErrorMessage(e.getMessage());
	PTPLaunchPlugin.errorDialog(e.getMessage(), e);
	return null;
	}
	return rmDynamicTabs.get(rm);
	}

	/**
	* Handle selection of a resource manager
	*/
	private void rmSelectionChanged() {
	resourceManager = getResourceManagerFromCombo();
	}

	/**
	* @param comp
	*/
	private void setLaunchAttrsScrollComposite(ScrolledComposite comp) {
	this.launchAttrsScrollComposite = comp;
	}

	/**
	* Given a resource manager, select it in the combo
	*
	* @param resource
	* manager
	*/
	private void setResourceManagerComboSelection(IResourceManager rm) {
	final Integer results = resourceManagerIndices.get(rm);
	int i = 0;
	if (results != null)
	i = results.intValue();
	resourceManagerCombo.select(i);
	rmSelectionChanged();
	}

	/**
	* This routine is called when the resource manager has been changed via the
	* combo boxes. It's job is to regenerate the dynamic ui components,
	* dependent on the resource manager choice.
	*
	* @param rm
	* @param queue
	* @param launchConfiguration
	*/
	private void updateLaunchAttributeControls(IResourceManager rm, IPQueue queue, ILaunchConfiguration launchConfiguration) {
	final ScrolledComposite launchAttrsScrollComp = getLaunchAttrsScrollComposite();
	launchAttrsScrollComp.setContent(null);
	for (Control child : launchAttrsScrollComp.getChildren())
	child.dispose();
	IRMLaunchConfigurationDynamicTab rmDynamicTab = getRMLaunchConfigurationDynamicTab(rm);
	if (rmDynamicTab != null)
	try {
	rmDynamicTab.createControl(launchAttrsScrollComp, rm, queue);
	final Control dynControl = rmDynamicTab.getControl();
	launchAttrsScrollComp.setContent(dynControl);
	Point size = dynControl.computeSize(SWT.DEFAULT, SWT.DEFAULT);
	launchAttrsScrollComp.setMinSize(size);
	rmDynamicTab.initializeFrom(launchAttrsScrollComp, rm, queue, launchConfiguration);
	} catch (CoreException e) {
	setErrorMessage(e.getMessage());
	PTPLaunchPlugin.errorDialog(e.getMessage(), e);
	}
	launchAttrsScrollComp.layout(true);
	}
	}