dos2unix

1 files changed, 1250 insertions, 1250 deletions

diff --git a/java/src/IceGridGUI/Application/Root.java b/java/src/IceGridGUI/Application/Root.java
index 47fe70decf0..70f0d8bbf4c 100755
--- a/java/src/IceGridGUI/Application/Root.java
+++ b/java/src/IceGridGUI/Application/Root.java
@@ -1,1250 +1,1250 @@
-// **********************************************************************

-//

-// Copyright (c) 2003-2006 ZeroC, Inc. All rights reserved.

-//

-// This copy of Ice is licensed to you under the terms described in the

-// ICE_LICENSE file included in this distribution.

-//

-// **********************************************************************

-package IceGridGUI.Application;

-

-import java.awt.Component;

-import java.awt.Cursor;

-

-import javax.swing.JOptionPane;

-import javax.swing.JPopupMenu;

-import javax.swing.JTree;

-import javax.swing.tree.DefaultTreeCellRenderer;

-import javax.swing.tree.DefaultTreeModel;

-import javax.swing.tree.TreePath;

-

-import java.io.File;

-

-import java.util.Enumeration;

-

-import IceGrid.*;

-import IceGridGUI.*;

-

-public class Root extends ListTreeNode

-{

-    //

-    // Construct a normal, existing Application

-    //

-    public Root(Coordinator coordinator, ApplicationDescriptor desc, 

-		boolean live, File file)

-    {

-	super(false, null, desc.name);

-	_coordinator = coordinator;

-	_descriptor = desc;

-

-	_file = file;

-	_live = live;

-

-	try

-	{

-	    init();

-	}

-	catch(UpdateFailedException e)

-	{

-	    //

-	    // Impossible

-	    //

-	    System.err.println(e.toString());

-	    assert false;

-	}

-    }

-   

-    //

-    // Construct a new Application

-    //

-    public Root(Coordinator coordinator, ApplicationDescriptor desc)

-    {

-	super(true, null, desc.name);

-	_coordinator = coordinator;

-	_descriptor = desc;

-

-	_file = null;

-	_live = false;

-	

-	try

-	{

-	    init();

-	}

-	catch(UpdateFailedException e)

-	{

-	    //

-	    // Impossible

-	    //

-	    assert false;

-	}

-    }

-

-   

-    private void init() throws UpdateFailedException

-    {

-	_resolver = new Utils.Resolver(_descriptor.variables);

-	_resolver.put("application", _descriptor.name);

-

-	_origVariables = _descriptor.variables;

-	_origDescription = _descriptor.description;

-	_origDistrib = (DistributionDescriptor)_descriptor.distrib.clone();

-

-	_propertySets = new PropertySets(this, _descriptor.propertySets);

-	_replicaGroups = new ReplicaGroups(this, _descriptor.replicaGroups);       

-	_serviceTemplates = new ServiceTemplates(this, _descriptor.serviceTemplates);

-	_serverTemplates = new ServerTemplates(this, _descriptor.serverTemplates);

-	_nodes = new Nodes(this, _descriptor.nodes);

-

-	_children.add(_nodes);

-	_children.add(_propertySets);

-	_children.add(_replicaGroups);

-	_children.add(_serverTemplates);

-	_children.add(_serviceTemplates);

-

-	_tree = new JTree(this, true);

-	_treeModel = (DefaultTreeModel)_tree.getModel();

-    }

-

-

-    static public ApplicationDescriptor

-    copyDescriptor(ApplicationDescriptor ad)

-    {

-	ApplicationDescriptor copy = (ApplicationDescriptor)ad.clone();

-	

-	copy.propertySets = PropertySets.copyDescriptors(copy.propertySets);

-

-	copy.replicaGroups = 

-	    ReplicaGroups.copyDescriptors(copy.replicaGroups);

-	

-	copy.serverTemplates = 

-	    ServerTemplates.copyDescriptors(copy.serverTemplates);

-	

-	copy.serviceTemplates = 

-	    ServiceTemplates.copyDescriptors(copy.serviceTemplates);

-	

-	copy.nodes = Nodes.copyDescriptors(copy.nodes);

-

-	copy.distrib = (DistributionDescriptor)copy.distrib.clone();

-	return copy;

-    }

-

-    public Editor getEditor()

-    {

-	if(_editor == null)

-	{

-	    _editor = (ApplicationEditor) 

-		getEditor(ApplicationEditor.class, this);

-	}

-	_editor.show(this);

-	return _editor;

-    }

-

-    protected Editor createEditor()

-    {

-	return new ApplicationEditor();

-    }

-

-    public TreeNode findNodeLike(TreePath path, boolean exactMatch)

-    {

-	TreeNode result = null;

-	if(path == null)

-	{

-	    return null;

-	}

-

-	for(int i = 0; i < path.getPathCount(); ++i)

-	{

-	    TreeNode node = (TreeNode)path.getPathComponent(i);

-	    

-	    if(result == null)

-	    {

-		if(node.getId().equals(_id))

-		{

-		    result = this;

-		}

-		else

-		{

-		    return null;

-		}

-	    }

-	    else

-	    {

-		TreeNode newNode = result.findChildLike(node);

-		if(newNode == null)

-		{

-		    if(exactMatch)

-		    {

-			return null;

-		    }

-		    else

-		    {

-			return result;

-		    }

-		}

-		else

-		{

-		    result = newNode;

-		}

-	    }

-	}

-

-	return result;

-    }

-    

-    //

-    // Check that this node is attached to the tree

-    //

-    public boolean hasNode(TreeNode node)

-    {

-	while(node != this)

-	{

-	    TreeNode parent = (TreeNode)node.getParent();

-	    if(parent == null || parent.getIndex(node) == -1)

-	    {

-		return false;

-	    }

-	    else

-	    {

-		node = parent;

-	    }

-	}

-	return true;

-    }

-

-    public void setSelectedNode(TreeNode node)

-    {

-	_tree.setSelectionPath(node.getPath());

-    }

-

-    public TreeNode getSelectedNode()

-    {

-	TreePath path = _tree.getSelectionPath();

-	if(path == null)

-	{

-	    return null;

-	}

-	else

-	{

-	    return (TreeNode)path.getLastPathComponent();

-	}

-    }

-

-    public void selectServer(String nodeName, String serverId)

-    {

-	TreeNode target = _nodes;

-	if(target != null)

-	{

-	    Node node = (Node)target.findChild(nodeName);

-	    if(node != null)

-	    {

-		target = node;

-		Server server = node.findServer(serverId);

-		if(server != null)

-		{

-		    target = (TreeNode)server;

-		}

-	    }

-	    setSelectedNode(target);

-	}

-    }

-

-    public Component getTreeCellRendererComponent(

-	    JTree tree,

-	    Object value,

-	    boolean sel,

-	    boolean expanded,

-	    boolean leaf,

-	    int row,

-	    boolean hasFocus) 

-    {

-	if(_cellRenderer == null)

-	{

-	    _cellRenderer = new DefaultTreeCellRenderer();

-	    _cellRenderer.setOpenIcon(

-		Utils.getIcon("/icons/16x16/application_open.png"));

-	    _cellRenderer.setClosedIcon(

-		Utils.getIcon("/icons/16x16/application_closed.png"));

-	}

-

-	return _cellRenderer.getTreeCellRendererComponent(

-	    tree, value, sel, expanded, leaf, row, hasFocus);

-    }

-

-    public boolean[] getAvailableActions()

-    {

-	boolean[] actions = new boolean[ACTION_COUNT];

-

-	actions[COPY] = true;

-	actions[DELETE] = true;

-

-	Object descriptor =  _coordinator.getClipboard();

-	if(descriptor != null)

-	{

-	    actions[PASTE] = descriptor instanceof ApplicationDescriptor;

-	}

-

-	actions[SHOW_VARS] = true;

-	actions[SUBSTITUTE_VARS] = true;	

-	actions[NEW_NODE] = true;

-	actions[NEW_PROPERTY_SET] = true;

-	actions[NEW_REPLICA_GROUP] = true;

-	actions[NEW_TEMPLATE_SERVER] = true;

-	actions[NEW_TEMPLATE_SERVER_ICEBOX] = true;

-	actions[NEW_TEMPLATE_SERVICE] = true;

-

-	return actions;

-    }

-

-    public JPopupMenu getPopupMenu()

-    {

-	ApplicationActions actions = _coordinator.getActionsForPopup();

-	if(_popup == null)

-	{

-	    _popup = new JPopupMenu();

-	    _popup.add(actions.get(NEW_NODE));

-	    _popup.add(actions.get(NEW_PROPERTY_SET));

-	    _popup.add(actions.get(NEW_REPLICA_GROUP));

-	    _popup.addSeparator();

-	    _popup.add(actions.get(NEW_TEMPLATE_SERVER));

-	    _popup.add(actions.get(NEW_TEMPLATE_SERVER_ICEBOX));

-	    _popup.addSeparator();

-	    _popup.add(actions.get(NEW_TEMPLATE_SERVICE));

-	}

-	actions.setTarget(this);

-	return _popup;

-    }

-

-    public void copy()

-    {

-	_coordinator.setClipboard(copyDescriptor(_descriptor));

-	_coordinator.getActionsForMenu().get(PASTE).setEnabled(true);

-    }

-    public void paste()

-    {

-	_coordinator.pasteApplication();

-    }

-    public void newNode()

-    {

-	_nodes.newNode();

-    }

-    public void newPropertySet()

-    {

-	_propertySets.newPropertySet();

-    }

-    public void newReplicaGroup()

-    {

-	_replicaGroups.newReplicaGroup();

-    }

-    public void newTemplateServer()

-    {

-	_serverTemplates.newTemplateServer();

-    }

-    public void newTemplateServerIceBox()

-    {

-	_serverTemplates.newTemplateServerIceBox();

-    }

-    public void newTemplateService()

-    {

-	_serviceTemplates.newTemplateService();

-    }

-    

-    public void save()

-    {

-	if(_live)

-	{

-	    saveToRegistry();

-	}

-	else if(_file != null)

-	{

-	    File file = _coordinator.saveToFile(false, this, _file);

-	    if(file != null)

-	    {

-		_file = file;

-		commit();

-		_coordinator.getSaveAction().setEnabled(false);

-		_coordinator.getDiscardUpdatesAction().setEnabled(false);

-	    }

-	}

-	else

-	{

-	    assert false;

-	}

-    }

-

-    public void saveToRegistry()

-    {

-	//

-	// To be run in GUI thread when exclusive write access is acquired

-	//

-	Runnable runnable = new Runnable()

-	    {

-		public void run()

-		{

-		    _coordinator.getMainFrame().setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));

-		    try

-		    {

-			if(_live && _canUseUpdateDescriptor)

-			{

-			    ApplicationUpdateDescriptor updateDescriptor = createUpdateDescriptor();

-			    if(updateDescriptor != null)

-			    {

-				_coordinator.getAdmin().updateApplication(updateDescriptor);

-				commit();

-				_skipUpdates++;

-			    }

-			}

-			else

-			{

-			    //

-			    // Add or sync application

-			    //

-			    if(_coordinator.getLiveDeploymentRoot().getApplicationDescriptor(_id) == null)

-			    {

-				assert _live == false;

-				_coordinator.getAdmin().addApplication(_descriptor);

-				commit();

-				liveReset();

-				_coordinator.addLiveApplication(Root.this);

-			    }

-			    else

-			    {

-				_coordinator.getAdmin().syncApplication(_descriptor);

-				commit();

-

-				if(_live)

-				{

-				    liveReset();

-				    _skipUpdates++;

-				}

-				else

-				{

-				    //

-				    // Make this tab live or close it if there is one already open

-				    //

-				    ApplicationPane app = _coordinator.getLiveApplication(_id);

-				    if(app == null)

-				    {

-					liveReset();

-					_coordinator.addLiveApplication(Root.this);

-				    }

-				    else

-				    {

-					boolean selected = isSelected();

-					_coordinator.getMainPane().removeApplication(Root.this);

-					if(selected)

-					{

-					    _coordinator.getMainPane().setSelectedComponent(app);

-					}

-				    }

-				}

-			    }

-			}

-			if(isSelected())

-			{

-			    _coordinator.getSaveAction().setEnabled(false);

-			    _coordinator.getSaveToRegistryAction().setEnabled(false);

-			    _coordinator.getDiscardUpdatesAction().setEnabled(false);

-			}

-		    }

-		    catch(DeploymentException e)

-		    {

-			JOptionPane.showMessageDialog(

-			    _coordinator.getMainFrame(),

-			    "Application '" + _id + "': "+ e.reason,

-			    "Deployment Exception",

-			    JOptionPane.ERROR_MESSAGE);

-		    }

-		    catch(ApplicationNotExistException e)

-		    {

-			//

-			// Should never happen

-			//

-			JOptionPane.showMessageDialog(

-			    _coordinator.getMainFrame(),

-			    "Application '" + _id + "' was not found in the IceGrid registry",

-			    "Deployment Exception",

-			    JOptionPane.ERROR_MESSAGE);

-		    }

-		    catch(AccessDeniedException e)

-		    {

-			//

-			// Should never happen

-			//

-			_coordinator.accessDenied(e);

-		    }

-		    catch(Ice.LocalException e)

-		    {

-			JOptionPane.showMessageDialog(

-			    _coordinator.getMainFrame(),

-			    e.toString(),

-			    "Communication Exception",

-			    JOptionPane.ERROR_MESSAGE);

-		    }

-		    finally

-		    {

-			_coordinator.getMainFrame().setCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR));

-			_coordinator.releaseExclusiveWriteAccess();

-		    }

-		}

-	    };

-	

-	try

-	{

-	    _coordinator.acquireExclusiveWriteAccess(runnable);

-	}

-	catch(AccessDeniedException e)

-	{

-	    _coordinator.accessDenied(e);

-	}

-	catch(Ice.LocalException e)

-	{

-	    JOptionPane.showMessageDialog(

-		_coordinator.getMainFrame(),

-		e.toString(),

-		"Communication Exception",

-		JOptionPane.ERROR_MESSAGE);

-	}

-    }

-

-    public void saveToFile()

-    {

-	File file = _coordinator.saveToFile(true, this, _file);

-	if(file != null)

-	{

-	    _file = file;

-	    _live = false;

-

-	    _coordinator.removeLiveApplication(_id);

-	    _coordinator.getMainPane().resetIcon(this);

-

-	    commit();

-	    _coordinator.getSaveAction().setEnabled(false);

-	    _coordinator.getDiscardUpdatesAction().setEnabled(false);

-	}

-    }

-

-    public void discardUpdates()

-    {

-	ApplicationDescriptor desc = null;

-

-	if(_live)

-	{

-	    desc = _coordinator.getLiveDeploymentRoot().getApplicationDescriptor(_id);

-	    assert desc != null;

-	    desc = IceGridGUI.Application.Root.copyDescriptor(desc);

-	}

-	else if(_file != null)

-	{

-	    desc = _coordinator.parseFile(_file);

-	    if(desc == null)

-	    {

-		return;

-	    }

-	}

-	else

-	{

-	    assert false;

-	}

-

-	Root newRoot = new Root(_coordinator, desc, _live, _file);

-	ApplicationPane app = _coordinator.getMainPane().findApplication(this);

-	assert app != null;

-	app.setRoot(newRoot);

-	

-	TreeNode node = newRoot.findNodeLike(_tree.getSelectionPath(), false);

-	if(node == null)

-	{

-	    newRoot.setSelectedNode(newRoot);

-	}

-	else

-	{

-	    newRoot.setSelectedNode(node);

-	}

-	_coordinator.getCurrentTab().selected();

-    }

-

-    private void liveReset()

-    {

-	_live = true;

-	_file = null;

-	_coordinator.getMainPane().resetIcon(this);

-    }

-

-

-    private ApplicationUpdateDescriptor createUpdateDescriptor()

-    {

-	ApplicationUpdateDescriptor update = new ApplicationUpdateDescriptor();

-	update.name = _descriptor.name;

-	if(_editable.isModified())

-	{

-	    //

-	    // Diff description

-	    //

-	    if(!_descriptor.description.equals(_origDescription))

-	    {

-		update.description = 

-		    new IceGrid.BoxedString(_descriptor.description);

-	    }

-

-	    //

-	    // Diff variables

-	    //

-	    update.variables = new java.util.TreeMap(_descriptor.variables);

-	    java.util.List removeVariables = new java.util.LinkedList();

-

-	    java.util.Iterator p = _origVariables.entrySet().iterator();

-	    while(p.hasNext())

-	    {

-		java.util.Map.Entry entry = (java.util.Map.Entry)p.next();

-		Object key = entry.getKey();

-		Object newValue =  update.variables.get(key);

-		if(newValue == null)

-		{

-		    removeVariables.add(key);

-		}

-		else

-		{

-		    Object value = entry.getValue();

-		    if(newValue.equals(value))

-		    {

-			update.variables.remove(key);

-		    }

-		}

-	    }

-	    update.removeVariables = (String[])removeVariables.toArray(new String[0]);

-

-	    //

-	    // Diff distribution

-	    //

-	    if(!_descriptor.distrib.equals(_origDistrib))

-	    {

-		update.distrib = new IceGrid.BoxedDistributionDescriptor(

-		    _descriptor.distrib);

-	    }

-	}

-	else

-	{

-	    update.variables = new java.util.TreeMap();

-	    update.removeVariables = new String[0];

-	}

-

-	//

-	// Property sets

-	//

-	update.removePropertySets = _propertySets.getEditable().

-	    removedElements(PropertySet.class);

-	update.propertySets = _propertySets.getUpdates();

-

-	//

-	// Replica Groups

-	//

-	update.removeReplicaGroups = _replicaGroups.getEditable().

-	    removedElements(ReplicaGroup.class);

-	update.replicaGroups = _replicaGroups.getUpdates();

-	

-	//

-	// Server Templates

-	//

-	update.removeServerTemplates = _serverTemplates.getEditable().

-	    removedElements(ServerTemplate.class);

-	update.serverTemplates = _serverTemplates.getUpdates();

-

-	//

-	// Service Templates

-	//

-	update.removeServiceTemplates = _serviceTemplates.getEditable().

-	    removedElements(ServiceTemplate.class);

-	update.serviceTemplates =_serviceTemplates.getUpdates();

-

-	//

-	// Nodes

-	//

-	update.removeNodes = _nodes.getEditable().

-	    removedElements(Node.class);

-	update.nodes = _nodes.getUpdates();

-

-

-	//

-	// Return null if nothing changed

-	//

-	if(!_editable.isModified() &&

-	   update.removePropertySets.length == 0 &&

-	   update.propertySets.size() == 0 &&

-	   update.removeReplicaGroups.length == 0 &&

-	   update.replicaGroups.size() == 0 &&

-	   update.removeServerTemplates.length == 0 &&

-	   update.serverTemplates.size() == 0 &&

-	   update.removeServiceTemplates.length == 0 &&

-	   update.serviceTemplates.size() == 0 &&

-	   update.removeNodes.length == 0 &&

-	   update.nodes.size() == 0)

-	{

-	    return null;

-	}

-	else

-	{

-	    return update;

-	}

-    }

-

-    private void commit()

-    {

-	_updated = false;

-	_registryUpdatesEnabled = true;

-	_canUseUpdateDescriptor = true;

-

-	assert _concurrentUpdates.size() == 0;

-

-	_editable.commit();

-	_origVariables = _descriptor.variables;

-	_origDescription = _descriptor.description;

-	_origDistrib = (DistributionDescriptor)_descriptor.distrib.clone();

-	

-	_nodes.commit();

-	_propertySets.commit();

-	_replicaGroups.commit();

-	_serverTemplates.commit();

-	_serviceTemplates.commit();

-    }

-

-    public boolean isEphemeral()

-    {

-	return false;

-    }

-

-    public void destroy()

-    {

-	if(!_live && _file == null)

-	{

-	    _coordinator.getMainPane().removeApplication(this);

-	}

-	else if(_live)

-	{

-	    int confirm = JOptionPane.showConfirmDialog(

-		_coordinator.getMainFrame(),

-		"You are about to remove application '" + _id + "' from the IceGrid registry. "

-		+ "Do you want to proceed?", 

-		"Remove Confirmation",

-		JOptionPane.YES_NO_OPTION);

-

-	    if(confirm == JOptionPane.YES_OPTION)

-	    {

-		_coordinator.removeApplicationFromRegistry(_id);

-		_discardMe = true;

-	    }

-	}

-	else

-	{

-	    assert _file != null;

-

-	    int confirm = JOptionPane.showConfirmDialog(

-		_coordinator.getMainFrame(),

-		"You are about to remove application '" + _id + "' and its associated file. "

-		+ "Do you want to proceed?", 

-		"Remove Confirmation",

-		JOptionPane.YES_NO_OPTION);

-

-	    if(confirm == JOptionPane.YES_OPTION)

-	    {

-		if(_file.delete())

-		{

-		    _coordinator.getMainPane().removeApplication(this);

-		}

-	    }

-	}

-    }

-

-    public boolean update(ApplicationUpdateDescriptor desc)

-    {

-	assert _live == true;

-	

-	if(_skipUpdates > 0)

-	{

-	    _skipUpdates--;

-	    return false;

-	}

-

-	if(!_registryUpdatesEnabled)

-	{

-	    if(_updated)

-	    {

-		_canUseUpdateDescriptor = false;

-	    }

-	    else

-	    {

-		_concurrentUpdates.add(desc);

-	    }

-	    return false;

-	}

-

-	try

-	{

-	    //

-	    // Description

-	    //

-	    if(desc.description != null)

-	    {

-		_descriptor.description = desc.description.value;

-		_origDescription = _descriptor.description;

-	    }

-	    

-	    //

-	    // Variables

-	    //

-	    for(int i = 0; i < desc.removeVariables.length; ++i)

-	    {

-		_descriptor.variables.remove(desc.removeVariables[i]);

-	    }

-	    _descriptor.variables.putAll(desc.variables);

-	    

-	    //

-	    // Distrib

-	    //

-	    if(desc.distrib != null)

-	    {

-		_descriptor.distrib = desc.distrib.value;

-		_origDistrib = (DistributionDescriptor)_descriptor.distrib.clone();

-	    }

-	    

-	    //

-	    // Property Sets

-	    //

-	    for(int i = 0; i < desc.removePropertySets.length; ++i)

-	    {

-		_descriptor.propertySets.remove(desc.removePropertySets[i]);

-	    }

-	    _descriptor.propertySets.putAll(desc.propertySets);

-	    _propertySets.update(desc.propertySets, 

-				 desc.removePropertySets);

-

-	    //

-	    // Replica groups

-	    //

-	    for(int i = 0; i < desc.removeReplicaGroups.length; ++i)

-	    {

-		_descriptor.replicaGroups.remove(desc.

-						 removeReplicaGroups[i]);

-	    }

-	    _descriptor.replicaGroups.addAll(desc.replicaGroups);

-	    _replicaGroups.update(desc.replicaGroups, 

-				  desc.removeReplicaGroups);

-	    

-	    

-	    //

-	    // Service templates

-	    //

-	    for(int i = 0; i < desc.removeServiceTemplates.length; ++i)

-	    {

-		_descriptor.serviceTemplates.remove(desc.

-						    removeServiceTemplates[i]);

-	    }

-	    _descriptor.serviceTemplates.putAll(desc.serviceTemplates);

-	    _serviceTemplates.update(desc.serviceTemplates, 

-				     desc.removeServiceTemplates);

-	    

-	    //

-	    // Server templates

-	    //

-	    for(int i = 0; i < desc.removeServerTemplates.length; ++i)

-	    {

-		_descriptor.serverTemplates.remove(desc.removeServerTemplates[i]);

-	    }

-	    _descriptor.serverTemplates.putAll(desc.serverTemplates);

-	    _serverTemplates.update(desc.serverTemplates, 

-				    desc.removeServerTemplates,

-				    desc.serviceTemplates.keySet());

-	    

-	    //

-	    // Nodes

-	    //

-	    for(int i = 0; i < desc.removeNodes.length; ++i)

-	    {

-		_descriptor.nodes.remove(desc.removeNodes[i]);

-	    }

-	    

-	    //

-	    // Updates also _descriptor.nodes

-	    //

-	    _nodes.update(desc.nodes, desc.removeNodes,

-			  desc.serverTemplates.keySet(),

-			  desc.serviceTemplates.keySet());

-	}

-	catch(UpdateFailedException e)

-	{

-	    //

-	    // Received invalid update from IceGrid registry: a bug!

-	    //

-	    assert false;

-	}

-

-	return true;

-    }

-

-    public JTree getTree()

-    {

-	return _tree;

-    }

-

-    public DefaultTreeModel getTreeModel()

-    {

-	return _treeModel;

-    }

-

-    public Coordinator getCoordinator()

-    {

-	return _coordinator;

-    }

-

-    public boolean isSelectionListenerEnabled()

-    {

-	return _selectionListenerEnabled;

-    }

-

-    public void enableSelectionListener()

-    {

-	_selectionListenerEnabled = true;

-    }

-

-    public void disableSelectionListener()

-    {

-	_selectionListenerEnabled = false;

-    }

-

-    public void cancelEdit()

-    {

-	if(!_updated)

-	{

-	    _registryUpdatesEnabled = true;

-

-	    //

-	    // Apply now any delayed concurrent update

-	    //

-	    java.util.Iterator p = _concurrentUpdates.iterator();

-	    while(p.hasNext())

-	    {

-		ApplicationUpdateDescriptor d = (ApplicationUpdateDescriptor)p.next();

-		boolean ok = update(d);

-		assert ok;

-	    }

-	    _concurrentUpdates.clear();

-	}

-    }

-

-    public boolean kill()

-    {

-	_live = false;

-

-	if(_registryUpdatesEnabled || _discardMe)

-	{

-	    return true;

-	}

-	else

-	{

-	    _coordinator.getMainPane().resetIcon(this);

-	    _coordinator.getCurrentTab().selected(); // only needed when 'this' 

-	                                             // corresponds to the current tab

-	    return false;

-	}

-    }

-

-    public boolean isLive()

-    {

-	return _live;

-    }

-

-    public boolean hasFile()

-    {

-	return _file != null;

-    }

-

-    public boolean needsSaving()

-    {

-	return _updated;

-    }

-

-    Editor getEditor(Class c, TreeNode node)

-    {

-	Editor result = (Editor)_editorMap.get(c);

-	if(result == null)

-	{

-	    result = node.createEditor();

-	    _editorMap.put(c, result);

-	}

-	return result;

-    }

-

-    Object getDescriptor()

-    {

-	return _descriptor;

-    }

-

-    ApplicationDescriptor saveDescriptor()

-    {

-	ApplicationDescriptor clone = (ApplicationDescriptor)_descriptor.clone();

-	clone.distrib = (IceGrid.DistributionDescriptor)clone.distrib.clone();

-	return clone;

-    }

-

-    void restoreDescriptor(ApplicationDescriptor clone)

-    {

-	_descriptor.name = clone.name;

-	_descriptor.variables = clone.variables;

-	_descriptor.distrib.icepatch = clone.distrib.icepatch;

-	_descriptor.distrib.directories = clone.distrib.directories;

-	_descriptor.description = clone.description;

-    }

-

-    public void write(XMLWriter writer) throws java.io.IOException

-    {

-	writer.writeStartTag("icegrid");

-

-	java.util.List attributes = new java.util.LinkedList();

-	attributes.add(createAttribute("name", _id));

-

-	writer.writeStartTag("application", attributes);

-

-	if(_descriptor.description.length() > 0)

-	{

-	    writer.writeElement("description", _descriptor.description);

-	}

-	writeVariables(writer, _descriptor.variables);

-	writeDistribution(writer, _descriptor.distrib);

-

-	_serviceTemplates.write(writer);

-	_serverTemplates.write(writer);

-	_replicaGroups.write(writer);

-	_propertySets.write(writer);

-	_nodes.write(writer);

-	

-	writer.writeEndTag("application");

-	writer.writeEndTag("icegrid");

-    }

-

-    //

-    // Methods called by editors; see also cancelEdit() above

-    //

-    void disableRegistryUpdates()

-    {

-	_registryUpdatesEnabled = false;

-    }

-

-    void updated()

-    {

-	_updated = true;

-	_registryUpdatesEnabled = false; // can be true before that when updated() is called by destroy()

-

-	_concurrentUpdates.clear();

-	

-	_coordinator.getSaveAction().setEnabled(_live || _file != null);

-	_coordinator.getDiscardUpdatesAction().setEnabled(_live || _file != null);

-

-	_coordinator.getSaveToRegistryAction().setEnabled(_coordinator.getSession() != null);

-	_coordinator.getSaveToFileAction().setEnabled(true);

-    }

-

-  

-    void rebuild() throws UpdateFailedException

-    {

-	Utils.Resolver oldResolver = _resolver;

-	String oldId = _id;

-	_id = _descriptor.name;

-	_resolver = new Utils.Resolver(_descriptor.variables);

-	_resolver.put("application", _id);

-

-	try

-	{

-	    _nodes.rebuild();

-	}

-	catch(UpdateFailedException e)

-	{

-	    _id = oldId;

-	    _resolver = oldResolver;

-	    throw e;

-	}

-    }

-    

-    //

-    // Called when a server-template is deleted, to remove all

-    // corresponding instances.

-    //

-    void removeServerInstances(String templateId)

-    {

-	_nodes.removeServerInstances(templateId);

-    }

-

-    //

-    // Called when a service-template is deleted, to remove all

-    // corresponding instances

-    //

-    void removeServiceInstances(String templateId)

-    {

-	_nodes.removeServiceInstances(templateId);

-	_serverTemplates.removeServiceInstances(templateId);

-    }

-

-

-    ServerTemplate findServerTemplate(String id)

-    {

-	return (ServerTemplate)_serverTemplates.findChild(id);

-    }

-

-    ServiceTemplate findServiceTemplate(String id)

-    {

-	return (ServiceTemplate)_serviceTemplates.findChild(id);

-    }

-

-    ReplicaGroup findReplicaGroup(String id)

-    {

-	return (ReplicaGroup)_replicaGroups.findChild(id);

-    }

-

-    Node findNode(String id)

-    {

-	return (Node)_nodes.findChild(id);

-    }

-

-    java.util.List findServerInstances(String template)

-    {

-	return _nodes.findServerInstances(template);

-    }

-

-    java.util.List findServiceInstances(String template)

-    {

-	java.util.List result = _serverTemplates.findServiceInstances(template);

-	result.addAll(_nodes.findServiceInstances(template));

-	return result;

-    }

-

-    TemplateDescriptor findServerTemplateDescriptor(String templateName)

-    {

-	return (TemplateDescriptor)

-	    _descriptor.serverTemplates.get(templateName);

-    }

-

-    TemplateDescriptor findServiceTemplateDescriptor(String templateName)

-    {

-	return (TemplateDescriptor)

-	    _descriptor.serviceTemplates.get(templateName);

-    }

-    

-    ServerTemplates getServerTemplates()

-    {

-	return _serverTemplates;

-    }

-    

-    ServiceTemplates getServiceTemplates()

-    {

-	return _serviceTemplates;

-    }

-

-    ReplicaGroups getReplicaGroups()

-    {

-	return _replicaGroups;

-    }

-

-    Root getRoot()

-    {

-	return this;

-    }

-    

-    Utils.Resolver getResolver()

-    {

-	return _resolver;

-    }

-

-    //

-    // Should only be used for reading

-    //

-    java.util.Map getVariables()

-    {

-	return _descriptor.variables;

-    }

-

-    private boolean isSelected()

-    {

-	if(_coordinator.getCurrentTab() instanceof ApplicationPane)

-	{

-	    return ((ApplicationPane)_coordinator.getCurrentTab()).getRoot() == Root.this;

-	}

-	else

-	{

-	    return false;

-	}

-    }

-

-    private Coordinator _coordinator;

-

-    //

-    // 'this' is the root of the tree

-    //

-    private JTree _tree;

-    private DefaultTreeModel _treeModel;

-    private Utils.Resolver _resolver;

-

-    private boolean _live;

-

-    //

-    // null when this application is not tied to a file 

-    //

-    private File _file;

-    

-    private ApplicationDescriptor _descriptor;

-

-    //

-    // Keeps original version (as shallow copies) to be able to build 

-    // ApplicationUpdateDescriptor. Only used when _live == true

-    //

-    private java.util.Map _origVariables;

-    private String _origDescription;

-    private DistributionDescriptor _origDistrib;

-

-    //

-    // When this application (and children) is being updated, we

-    // no longer apply updates from the registry. Only meaningful when

-    // _live == true

-    //

-    private boolean _registryUpdatesEnabled = true;

-

-    private boolean _discardMe = false;

-

-    //

-    // True when any update was applies to this application 

-    // (including children)

-    //

-    private boolean _updated = false;

-    

-    //

-    // Updates saved when _updated == false and 

-    // _registryUpdatesEnabled == false

-    //

-    private java.util.List _concurrentUpdates = new java.util.LinkedList();

-

-    //

-    // When _live is true and _canUseUpdateDescriptor is true, we can

-    // save the updates using an ApplicationUpdateDescriptor

-    //

-    private boolean _canUseUpdateDescriptor = true;

-    //

-    // Updates to skip (because already applied locally)

-    //

-    private int  _skipUpdates = 0;

-

-

-    private Nodes _nodes;

-    private PropertySets _propertySets;

-    private ReplicaGroups _replicaGroups;

-    private ServerTemplates _serverTemplates;

-    private ServiceTemplates _serviceTemplates;

-

-    private boolean _selectionListenerEnabled = true;

-

-    private ApplicationEditor _editor;

-

-    //

-    // Map editor-class to Editor object

-    //

-    private java.util.Map _editorMap = new java.util.HashMap();

-

-    static private DefaultTreeCellRenderer _cellRenderer;    

-    static private JPopupMenu _popup;

-}

+// **********************************************************************
+//
+// Copyright (c) 2003-2006 ZeroC, Inc. All rights reserved.
+//
+// This copy of Ice is licensed to you under the terms described in the
+// ICE_LICENSE file included in this distribution.
+//
+// **********************************************************************
+package IceGridGUI.Application;
+
+import java.awt.Component;
+import java.awt.Cursor;
+
+import javax.swing.JOptionPane;
+import javax.swing.JPopupMenu;
+import javax.swing.JTree;
+import javax.swing.tree.DefaultTreeCellRenderer;
+import javax.swing.tree.DefaultTreeModel;
+import javax.swing.tree.TreePath;
+
+import java.io.File;
+
+import java.util.Enumeration;
+
+import IceGrid.*;
+import IceGridGUI.*;
+
+public class Root extends ListTreeNode
+{
+    //
+    // Construct a normal, existing Application
+    //
+    public Root(Coordinator coordinator, ApplicationDescriptor desc, 
+		boolean live, File file)
+    {
+	super(false, null, desc.name);
+	_coordinator = coordinator;
+	_descriptor = desc;
+
+	_file = file;
+	_live = live;
+
+	try
+	{
+	    init();
+	}
+	catch(UpdateFailedException e)
+	{
+	    //
+	    // Impossible
+	    //
+	    System.err.println(e.toString());
+	    assert false;
+	}
+    }
+   
+    //
+    // Construct a new Application
+    //
+    public Root(Coordinator coordinator, ApplicationDescriptor desc)
+    {
+	super(true, null, desc.name);
+	_coordinator = coordinator;
+	_descriptor = desc;
+
+	_file = null;
+	_live = false;
+	
+	try
+	{
+	    init();
+	}
+	catch(UpdateFailedException e)
+	{
+	    //
+	    // Impossible
+	    //
+	    assert false;
+	}
+    }
+
+   
+    private void init() throws UpdateFailedException
+    {
+	_resolver = new Utils.Resolver(_descriptor.variables);
+	_resolver.put("application", _descriptor.name);
+
+	_origVariables = _descriptor.variables;
+	_origDescription = _descriptor.description;
+	_origDistrib = (DistributionDescriptor)_descriptor.distrib.clone();
+
+	_propertySets = new PropertySets(this, _descriptor.propertySets);
+	_replicaGroups = new ReplicaGroups(this, _descriptor.replicaGroups);       
+	_serviceTemplates = new ServiceTemplates(this, _descriptor.serviceTemplates);
+	_serverTemplates = new ServerTemplates(this, _descriptor.serverTemplates);
+	_nodes = new Nodes(this, _descriptor.nodes);
+
+	_children.add(_nodes);
+	_children.add(_propertySets);
+	_children.add(_replicaGroups);
+	_children.add(_serverTemplates);
+	_children.add(_serviceTemplates);
+
+	_tree = new JTree(this, true);
+	_treeModel = (DefaultTreeModel)_tree.getModel();
+    }
+
+
+    static public ApplicationDescriptor
+    copyDescriptor(ApplicationDescriptor ad)
+    {
+	ApplicationDescriptor copy = (ApplicationDescriptor)ad.clone();
+	
+	copy.propertySets = PropertySets.copyDescriptors(copy.propertySets);
+
+	copy.replicaGroups = 
+	    ReplicaGroups.copyDescriptors(copy.replicaGroups);
+	
+	copy.serverTemplates = 
+	    ServerTemplates.copyDescriptors(copy.serverTemplates);
+	
+	copy.serviceTemplates = 
+	    ServiceTemplates.copyDescriptors(copy.serviceTemplates);
+	
+	copy.nodes = Nodes.copyDescriptors(copy.nodes);
+
+	copy.distrib = (DistributionDescriptor)copy.distrib.clone();
+	return copy;
+    }
+
+    public Editor getEditor()
+    {
+	if(_editor == null)
+	{
+	    _editor = (ApplicationEditor) 
+		getEditor(ApplicationEditor.class, this);
+	}
+	_editor.show(this);
+	return _editor;
+    }
+
+    protected Editor createEditor()
+    {
+	return new ApplicationEditor();
+    }
+
+    public TreeNode findNodeLike(TreePath path, boolean exactMatch)
+    {
+	TreeNode result = null;
+	if(path == null)
+	{
+	    return null;
+	}
+
+	for(int i = 0; i < path.getPathCount(); ++i)
+	{
+	    TreeNode node = (TreeNode)path.getPathComponent(i);
+	    
+	    if(result == null)
+	    {
+		if(node.getId().equals(_id))
+		{
+		    result = this;
+		}
+		else
+		{
+		    return null;
+		}
+	    }
+	    else
+	    {
+		TreeNode newNode = result.findChildLike(node);
+		if(newNode == null)
+		{
+		    if(exactMatch)
+		    {
+			return null;
+		    }
+		    else
+		    {
+			return result;
+		    }
+		}
+		else
+		{
+		    result = newNode;
+		}
+	    }
+	}
+
+	return result;
+    }
+    
+    //
+    // Check that this node is attached to the tree
+    //
+    public boolean hasNode(TreeNode node)
+    {
+	while(node != this)
+	{
+	    TreeNode parent = (TreeNode)node.getParent();
+	    if(parent == null || parent.getIndex(node) == -1)
+	    {
+		return false;
+	    }
+	    else
+	    {
+		node = parent;
+	    }
+	}
+	return true;
+    }
+
+    public void setSelectedNode(TreeNode node)
+    {
+	_tree.setSelectionPath(node.getPath());
+    }
+
+    public TreeNode getSelectedNode()
+    {
+	TreePath path = _tree.getSelectionPath();
+	if(path == null)
+	{
+	    return null;
+	}
+	else
+	{
+	    return (TreeNode)path.getLastPathComponent();
+	}
+    }
+
+    public void selectServer(String nodeName, String serverId)
+    {
+	TreeNode target = _nodes;
+	if(target != null)
+	{
+	    Node node = (Node)target.findChild(nodeName);
+	    if(node != null)
+	    {
+		target = node;
+		Server server = node.findServer(serverId);
+		if(server != null)
+		{
+		    target = (TreeNode)server;
+		}
+	    }
+	    setSelectedNode(target);
+	}
+    }
+
+    public Component getTreeCellRendererComponent(
+	    JTree tree,
+	    Object value,
+	    boolean sel,
+	    boolean expanded,
+	    boolean leaf,
+	    int row,
+	    boolean hasFocus) 
+    {
+	if(_cellRenderer == null)
+	{
+	    _cellRenderer = new DefaultTreeCellRenderer();
+	    _cellRenderer.setOpenIcon(
+		Utils.getIcon("/icons/16x16/application_open.png"));
+	    _cellRenderer.setClosedIcon(
+		Utils.getIcon("/icons/16x16/application_closed.png"));
+	}
+
+	return _cellRenderer.getTreeCellRendererComponent(
+	    tree, value, sel, expanded, leaf, row, hasFocus);
+    }
+
+    public boolean[] getAvailableActions()
+    {
+	boolean[] actions = new boolean[ACTION_COUNT];
+
+	actions[COPY] = true;
+	actions[DELETE] = true;
+
+	Object descriptor =  _coordinator.getClipboard();
+	if(descriptor != null)
+	{
+	    actions[PASTE] = descriptor instanceof ApplicationDescriptor;
+	}
+
+	actions[SHOW_VARS] = true;
+	actions[SUBSTITUTE_VARS] = true;	
+	actions[NEW_NODE] = true;
+	actions[NEW_PROPERTY_SET] = true;
+	actions[NEW_REPLICA_GROUP] = true;
+	actions[NEW_TEMPLATE_SERVER] = true;
+	actions[NEW_TEMPLATE_SERVER_ICEBOX] = true;
+	actions[NEW_TEMPLATE_SERVICE] = true;
+
+	return actions;
+    }
+
+    public JPopupMenu getPopupMenu()
+    {
+	ApplicationActions actions = _coordinator.getActionsForPopup();
+	if(_popup == null)
+	{
+	    _popup = new JPopupMenu();
+	    _popup.add(actions.get(NEW_NODE));
+	    _popup.add(actions.get(NEW_PROPERTY_SET));
+	    _popup.add(actions.get(NEW_REPLICA_GROUP));
+	    _popup.addSeparator();
+	    _popup.add(actions.get(NEW_TEMPLATE_SERVER));
+	    _popup.add(actions.get(NEW_TEMPLATE_SERVER_ICEBOX));
+	    _popup.addSeparator();
+	    _popup.add(actions.get(NEW_TEMPLATE_SERVICE));
+	}
+	actions.setTarget(this);
+	return _popup;
+    }
+
+    public void copy()
+    {
+	_coordinator.setClipboard(copyDescriptor(_descriptor));
+	_coordinator.getActionsForMenu().get(PASTE).setEnabled(true);
+    }
+    public void paste()
+    {
+	_coordinator.pasteApplication();
+    }
+    public void newNode()
+    {
+	_nodes.newNode();
+    }
+    public void newPropertySet()
+    {
+	_propertySets.newPropertySet();
+    }
+    public void newReplicaGroup()
+    {
+	_replicaGroups.newReplicaGroup();
+    }
+    public void newTemplateServer()
+    {
+	_serverTemplates.newTemplateServer();
+    }
+    public void newTemplateServerIceBox()
+    {
+	_serverTemplates.newTemplateServerIceBox();
+    }
+    public void newTemplateService()
+    {
+	_serviceTemplates.newTemplateService();
+    }
+    
+    public void save()
+    {
+	if(_live)
+	{
+	    saveToRegistry();
+	}
+	else if(_file != null)
+	{
+	    File file = _coordinator.saveToFile(false, this, _file);
+	    if(file != null)
+	    {
+		_file = file;
+		commit();
+		_coordinator.getSaveAction().setEnabled(false);
+		_coordinator.getDiscardUpdatesAction().setEnabled(false);
+	    }
+	}
+	else
+	{
+	    assert false;
+	}
+    }
+
+    public void saveToRegistry()
+    {
+	//
+	// To be run in GUI thread when exclusive write access is acquired
+	//
+	Runnable runnable = new Runnable()
+	    {
+		public void run()
+		{
+		    _coordinator.getMainFrame().setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
+		    try
+		    {
+			if(_live && _canUseUpdateDescriptor)
+			{
+			    ApplicationUpdateDescriptor updateDescriptor = createUpdateDescriptor();
+			    if(updateDescriptor != null)
+			    {
+				_coordinator.getAdmin().updateApplication(updateDescriptor);
+				commit();
+				_skipUpdates++;
+			    }
+			}
+			else
+			{
+			    //
+			    // Add or sync application
+			    //
+			    if(_coordinator.getLiveDeploymentRoot().getApplicationDescriptor(_id) == null)
+			    {
+				assert _live == false;
+				_coordinator.getAdmin().addApplication(_descriptor);
+				commit();
+				liveReset();
+				_coordinator.addLiveApplication(Root.this);
+			    }
+			    else
+			    {
+				_coordinator.getAdmin().syncApplication(_descriptor);
+				commit();
+
+				if(_live)
+				{
+				    liveReset();
+				    _skipUpdates++;
+				}
+				else
+				{
+				    //
+				    // Make this tab live or close it if there is one already open
+				    //
+				    ApplicationPane app = _coordinator.getLiveApplication(_id);
+				    if(app == null)
+				    {
+					liveReset();
+					_coordinator.addLiveApplication(Root.this);
+				    }
+				    else
+				    {
+					boolean selected = isSelected();
+					_coordinator.getMainPane().removeApplication(Root.this);
+					if(selected)
+					{
+					    _coordinator.getMainPane().setSelectedComponent(app);
+					}
+				    }
+				}
+			    }
+			}
+			if(isSelected())
+			{
+			    _coordinator.getSaveAction().setEnabled(false);
+			    _coordinator.getSaveToRegistryAction().setEnabled(false);
+			    _coordinator.getDiscardUpdatesAction().setEnabled(false);
+			}
+		    }
+		    catch(DeploymentException e)
+		    {
+			JOptionPane.showMessageDialog(
+			    _coordinator.getMainFrame(),
+			    "Application '" + _id + "': "+ e.reason,
+			    "Deployment Exception",
+			    JOptionPane.ERROR_MESSAGE);
+		    }
+		    catch(ApplicationNotExistException e)
+		    {
+			//
+			// Should never happen
+			//
+			JOptionPane.showMessageDialog(
+			    _coordinator.getMainFrame(),
+			    "Application '" + _id + "' was not found in the IceGrid registry",
+			    "Deployment Exception",
+			    JOptionPane.ERROR_MESSAGE);
+		    }
+		    catch(AccessDeniedException e)
+		    {
+			//
+			// Should never happen
+			//
+			_coordinator.accessDenied(e);
+		    }
+		    catch(Ice.LocalException e)
+		    {
+			JOptionPane.showMessageDialog(
+			    _coordinator.getMainFrame(),
+			    e.toString(),
+			    "Communication Exception",
+			    JOptionPane.ERROR_MESSAGE);
+		    }
+		    finally
+		    {
+			_coordinator.getMainFrame().setCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR));
+			_coordinator.releaseExclusiveWriteAccess();
+		    }
+		}
+	    };
+	
+	try
+	{
+	    _coordinator.acquireExclusiveWriteAccess(runnable);
+	}
+	catch(AccessDeniedException e)
+	{
+	    _coordinator.accessDenied(e);
+	}
+	catch(Ice.LocalException e)
+	{
+	    JOptionPane.showMessageDialog(
+		_coordinator.getMainFrame(),
+		e.toString(),
+		"Communication Exception",
+		JOptionPane.ERROR_MESSAGE);
+	}
+    }
+
+    public void saveToFile()
+    {
+	File file = _coordinator.saveToFile(true, this, _file);
+	if(file != null)
+	{
+	    _file = file;
+	    _live = false;
+
+	    _coordinator.removeLiveApplication(_id);
+	    _coordinator.getMainPane().resetIcon(this);
+
+	    commit();
+	    _coordinator.getSaveAction().setEnabled(false);
+	    _coordinator.getDiscardUpdatesAction().setEnabled(false);
+	}
+    }
+
+    public void discardUpdates()
+    {
+	ApplicationDescriptor desc = null;
+
+	if(_live)
+	{
+	    desc = _coordinator.getLiveDeploymentRoot().getApplicationDescriptor(_id);
+	    assert desc != null;
+	    desc = IceGridGUI.Application.Root.copyDescriptor(desc);
+	}
+	else if(_file != null)
+	{
+	    desc = _coordinator.parseFile(_file);
+	    if(desc == null)
+	    {
+		return;
+	    }
+	}
+	else
+	{
+	    assert false;
+	}
+
+	Root newRoot = new Root(_coordinator, desc, _live, _file);
+	ApplicationPane app = _coordinator.getMainPane().findApplication(this);
+	assert app != null;
+	app.setRoot(newRoot);
+	
+	TreeNode node = newRoot.findNodeLike(_tree.getSelectionPath(), false);
+	if(node == null)
+	{
+	    newRoot.setSelectedNode(newRoot);
+	}
+	else
+	{
+	    newRoot.setSelectedNode(node);
+	}
+	_coordinator.getCurrentTab().selected();
+    }
+
+    private void liveReset()
+    {
+	_live = true;
+	_file = null;
+	_coordinator.getMainPane().resetIcon(this);
+    }
+
+
+    private ApplicationUpdateDescriptor createUpdateDescriptor()
+    {
+	ApplicationUpdateDescriptor update = new ApplicationUpdateDescriptor();
+	update.name = _descriptor.name;
+	if(_editable.isModified())
+	{
+	    //
+	    // Diff description
+	    //
+	    if(!_descriptor.description.equals(_origDescription))
+	    {
+		update.description = 
+		    new IceGrid.BoxedString(_descriptor.description);
+	    }
+
+	    //
+	    // Diff variables
+	    //
+	    update.variables = new java.util.TreeMap(_descriptor.variables);
+	    java.util.List removeVariables = new java.util.LinkedList();
+
+	    java.util.Iterator p = _origVariables.entrySet().iterator();
+	    while(p.hasNext())
+	    {
+		java.util.Map.Entry entry = (java.util.Map.Entry)p.next();
+		Object key = entry.getKey();
+		Object newValue =  update.variables.get(key);
+		if(newValue == null)
+		{
+		    removeVariables.add(key);
+		}
+		else
+		{
+		    Object value = entry.getValue();
+		    if(newValue.equals(value))
+		    {
+			update.variables.remove(key);
+		    }
+		}
+	    }
+	    update.removeVariables = (String[])removeVariables.toArray(new String[0]);
+
+	    //
+	    // Diff distribution
+	    //
+	    if(!_descriptor.distrib.equals(_origDistrib))
+	    {
+		update.distrib = new IceGrid.BoxedDistributionDescriptor(
+		    _descriptor.distrib);
+	    }
+	}
+	else
+	{
+	    update.variables = new java.util.TreeMap();
+	    update.removeVariables = new String[0];
+	}
+
+	//
+	// Property sets
+	//
+	update.removePropertySets = _propertySets.getEditable().
+	    removedElements(PropertySet.class);
+	update.propertySets = _propertySets.getUpdates();
+
+	//
+	// Replica Groups
+	//
+	update.removeReplicaGroups = _replicaGroups.getEditable().
+	    removedElements(ReplicaGroup.class);
+	update.replicaGroups = _replicaGroups.getUpdates();
+	
+	//
+	// Server Templates
+	//
+	update.removeServerTemplates = _serverTemplates.getEditable().
+	    removedElements(ServerTemplate.class);
+	update.serverTemplates = _serverTemplates.getUpdates();
+
+	//
+	// Service Templates
+	//
+	update.removeServiceTemplates = _serviceTemplates.getEditable().
+	    removedElements(ServiceTemplate.class);
+	update.serviceTemplates =_serviceTemplates.getUpdates();
+
+	//
+	// Nodes
+	//
+	update.removeNodes = _nodes.getEditable().
+	    removedElements(Node.class);
+	update.nodes = _nodes.getUpdates();
+
+
+	//
+	// Return null if nothing changed
+	//
+	if(!_editable.isModified() &&
+	   update.removePropertySets.length == 0 &&
+	   update.propertySets.size() == 0 &&
+	   update.removeReplicaGroups.length == 0 &&
+	   update.replicaGroups.size() == 0 &&
+	   update.removeServerTemplates.length == 0 &&
+	   update.serverTemplates.size() == 0 &&
+	   update.removeServiceTemplates.length == 0 &&
+	   update.serviceTemplates.size() == 0 &&
+	   update.removeNodes.length == 0 &&
+	   update.nodes.size() == 0)
+	{
+	    return null;
+	}
+	else
+	{
+	    return update;
+	}
+    }
+
+    private void commit()
+    {
+	_updated = false;
+	_registryUpdatesEnabled = true;
+	_canUseUpdateDescriptor = true;
+
+	assert _concurrentUpdates.size() == 0;
+
+	_editable.commit();
+	_origVariables = _descriptor.variables;
+	_origDescription = _descriptor.description;
+	_origDistrib = (DistributionDescriptor)_descriptor.distrib.clone();
+	
+	_nodes.commit();
+	_propertySets.commit();
+	_replicaGroups.commit();
+	_serverTemplates.commit();
+	_serviceTemplates.commit();
+    }
+
+    public boolean isEphemeral()
+    {
+	return false;
+    }
+
+    public void destroy()
+    {
+	if(!_live && _file == null)
+	{
+	    _coordinator.getMainPane().removeApplication(this);
+	}
+	else if(_live)
+	{
+	    int confirm = JOptionPane.showConfirmDialog(
+		_coordinator.getMainFrame(),
+		"You are about to remove application '" + _id + "' from the IceGrid registry. "
+		+ "Do you want to proceed?", 
+		"Remove Confirmation",
+		JOptionPane.YES_NO_OPTION);
+
+	    if(confirm == JOptionPane.YES_OPTION)
+	    {
+		_coordinator.removeApplicationFromRegistry(_id);
+		_discardMe = true;
+	    }
+	}
+	else
+	{
+	    assert _file != null;
+
+	    int confirm = JOptionPane.showConfirmDialog(
+		_coordinator.getMainFrame(),
+		"You are about to remove application '" + _id + "' and its associated file. "
+		+ "Do you want to proceed?", 
+		"Remove Confirmation",
+		JOptionPane.YES_NO_OPTION);
+
+	    if(confirm == JOptionPane.YES_OPTION)
+	    {
+		if(_file.delete())
+		{
+		    _coordinator.getMainPane().removeApplication(this);
+		}
+	    }
+	}
+    }
+
+    public boolean update(ApplicationUpdateDescriptor desc)
+    {
+	assert _live == true;
+	
+	if(_skipUpdates > 0)
+	{
+	    _skipUpdates--;
+	    return false;
+	}
+
+	if(!_registryUpdatesEnabled)
+	{
+	    if(_updated)
+	    {
+		_canUseUpdateDescriptor = false;
+	    }
+	    else
+	    {
+		_concurrentUpdates.add(desc);
+	    }
+	    return false;
+	}
+
+	try
+	{
+	    //
+	    // Description
+	    //
+	    if(desc.description != null)
+	    {
+		_descriptor.description = desc.description.value;
+		_origDescription = _descriptor.description;
+	    }
+	    
+	    //
+	    // Variables
+	    //
+	    for(int i = 0; i < desc.removeVariables.length; ++i)
+	    {
+		_descriptor.variables.remove(desc.removeVariables[i]);
+	    }
+	    _descriptor.variables.putAll(desc.variables);
+	    
+	    //
+	    // Distrib
+	    //
+	    if(desc.distrib != null)
+	    {
+		_descriptor.distrib = desc.distrib.value;
+		_origDistrib = (DistributionDescriptor)_descriptor.distrib.clone();
+	    }
+	    
+	    //
+	    // Property Sets
+	    //
+	    for(int i = 0; i < desc.removePropertySets.length; ++i)
+	    {
+		_descriptor.propertySets.remove(desc.removePropertySets[i]);
+	    }
+	    _descriptor.propertySets.putAll(desc.propertySets);
+	    _propertySets.update(desc.propertySets, 
+				 desc.removePropertySets);
+
+	    //
+	    // Replica groups
+	    //
+	    for(int i = 0; i < desc.removeReplicaGroups.length; ++i)
+	    {
+		_descriptor.replicaGroups.remove(desc.
+						 removeReplicaGroups[i]);
+	    }
+	    _descriptor.replicaGroups.addAll(desc.replicaGroups);
+	    _replicaGroups.update(desc.replicaGroups, 
+				  desc.removeReplicaGroups);
+	    
+	    
+	    //
+	    // Service templates
+	    //
+	    for(int i = 0; i < desc.removeServiceTemplates.length; ++i)
+	    {
+		_descriptor.serviceTemplates.remove(desc.
+						    removeServiceTemplates[i]);
+	    }
+	    _descriptor.serviceTemplates.putAll(desc.serviceTemplates);
+	    _serviceTemplates.update(desc.serviceTemplates, 
+				     desc.removeServiceTemplates);
+	    
+	    //
+	    // Server templates
+	    //
+	    for(int i = 0; i < desc.removeServerTemplates.length; ++i)
+	    {
+		_descriptor.serverTemplates.remove(desc.removeServerTemplates[i]);
+	    }
+	    _descriptor.serverTemplates.putAll(desc.serverTemplates);
+	    _serverTemplates.update(desc.serverTemplates, 
+				    desc.removeServerTemplates,
+				    desc.serviceTemplates.keySet());
+	    
+	    //
+	    // Nodes
+	    //
+	    for(int i = 0; i < desc.removeNodes.length; ++i)
+	    {
+		_descriptor.nodes.remove(desc.removeNodes[i]);
+	    }
+	    
+	    //
+	    // Updates also _descriptor.nodes
+	    //
+	    _nodes.update(desc.nodes, desc.removeNodes,
+			  desc.serverTemplates.keySet(),
+			  desc.serviceTemplates.keySet());
+	}
+	catch(UpdateFailedException e)
+	{
+	    //
+	    // Received invalid update from IceGrid registry: a bug!
+	    //
+	    assert false;
+	}
+
+	return true;
+    }
+
+    public JTree getTree()
+    {
+	return _tree;
+    }
+
+    public DefaultTreeModel getTreeModel()
+    {
+	return _treeModel;
+    }
+
+    public Coordinator getCoordinator()
+    {
+	return _coordinator;
+    }
+
+    public boolean isSelectionListenerEnabled()
+    {
+	return _selectionListenerEnabled;
+    }
+
+    public void enableSelectionListener()
+    {
+	_selectionListenerEnabled = true;
+    }
+
+    public void disableSelectionListener()
+    {
+	_selectionListenerEnabled = false;
+    }
+
+    public void cancelEdit()
+    {
+	if(!_updated)
+	{
+	    _registryUpdatesEnabled = true;
+
+	    //
+	    // Apply now any delayed concurrent update
+	    //
+	    java.util.Iterator p = _concurrentUpdates.iterator();
+	    while(p.hasNext())
+	    {
+		ApplicationUpdateDescriptor d = (ApplicationUpdateDescriptor)p.next();
+		boolean ok = update(d);
+		assert ok;
+	    }
+	    _concurrentUpdates.clear();
+	}
+    }
+
+    public boolean kill()
+    {
+	_live = false;
+
+	if(_registryUpdatesEnabled || _discardMe)
+	{
+	    return true;
+	}
+	else
+	{
+	    _coordinator.getMainPane().resetIcon(this);
+	    _coordinator.getCurrentTab().selected(); // only needed when 'this' 
+	                                             // corresponds to the current tab
+	    return false;
+	}
+    }
+
+    public boolean isLive()
+    {
+	return _live;
+    }
+
+    public boolean hasFile()
+    {
+	return _file != null;
+    }
+
+    public boolean needsSaving()
+    {
+	return _updated;
+    }
+
+    Editor getEditor(Class c, TreeNode node)
+    {
+	Editor result = (Editor)_editorMap.get(c);
+	if(result == null)
+	{
+	    result = node.createEditor();
+	    _editorMap.put(c, result);
+	}
+	return result;
+    }
+
+    Object getDescriptor()
+    {
+	return _descriptor;
+    }
+
+    ApplicationDescriptor saveDescriptor()
+    {
+	ApplicationDescriptor clone = (ApplicationDescriptor)_descriptor.clone();
+	clone.distrib = (IceGrid.DistributionDescriptor)clone.distrib.clone();
+	return clone;
+    }
+
+    void restoreDescriptor(ApplicationDescriptor clone)
+    {
+	_descriptor.name = clone.name;
+	_descriptor.variables = clone.variables;
+	_descriptor.distrib.icepatch = clone.distrib.icepatch;
+	_descriptor.distrib.directories = clone.distrib.directories;
+	_descriptor.description = clone.description;
+    }
+
+    public void write(XMLWriter writer) throws java.io.IOException
+    {
+	writer.writeStartTag("icegrid");
+
+	java.util.List attributes = new java.util.LinkedList();
+	attributes.add(createAttribute("name", _id));
+
+	writer.writeStartTag("application", attributes);
+
+	if(_descriptor.description.length() > 0)
+	{
+	    writer.writeElement("description", _descriptor.description);
+	}
+	writeVariables(writer, _descriptor.variables);
+	writeDistribution(writer, _descriptor.distrib);
+
+	_serviceTemplates.write(writer);
+	_serverTemplates.write(writer);
+	_replicaGroups.write(writer);
+	_propertySets.write(writer);
+	_nodes.write(writer);
+	
+	writer.writeEndTag("application");
+	writer.writeEndTag("icegrid");
+    }
+
+    //
+    // Methods called by editors; see also cancelEdit() above
+    //
+    void disableRegistryUpdates()
+    {
+	_registryUpdatesEnabled = false;
+    }
+
+    void updated()
+    {
+	_updated = true;
+	_registryUpdatesEnabled = false; // can be true before that when updated() is called by destroy()
+
+	_concurrentUpdates.clear();
+	
+	_coordinator.getSaveAction().setEnabled(_live || _file != null);
+	_coordinator.getDiscardUpdatesAction().setEnabled(_live || _file != null);
+
+	_coordinator.getSaveToRegistryAction().setEnabled(_coordinator.getSession() != null);
+	_coordinator.getSaveToFileAction().setEnabled(true);
+    }
+
+  
+    void rebuild() throws UpdateFailedException
+    {
+	Utils.Resolver oldResolver = _resolver;
+	String oldId = _id;
+	_id = _descriptor.name;
+	_resolver = new Utils.Resolver(_descriptor.variables);
+	_resolver.put("application", _id);
+
+	try
+	{
+	    _nodes.rebuild();
+	}
+	catch(UpdateFailedException e)
+	{
+	    _id = oldId;
+	    _resolver = oldResolver;
+	    throw e;
+	}
+    }
+    
+    //
+    // Called when a server-template is deleted, to remove all
+    // corresponding instances.
+    //
+    void removeServerInstances(String templateId)
+    {
+	_nodes.removeServerInstances(templateId);
+    }
+
+    //
+    // Called when a service-template is deleted, to remove all
+    // corresponding instances
+    //
+    void removeServiceInstances(String templateId)
+    {
+	_nodes.removeServiceInstances(templateId);
+	_serverTemplates.removeServiceInstances(templateId);
+    }
+
+
+    ServerTemplate findServerTemplate(String id)
+    {
+	return (ServerTemplate)_serverTemplates.findChild(id);
+    }
+
+    ServiceTemplate findServiceTemplate(String id)
+    {
+	return (ServiceTemplate)_serviceTemplates.findChild(id);
+    }
+
+    ReplicaGroup findReplicaGroup(String id)
+    {
+	return (ReplicaGroup)_replicaGroups.findChild(id);
+    }
+
+    Node findNode(String id)
+    {
+	return (Node)_nodes.findChild(id);
+    }
+
+    java.util.List findServerInstances(String template)
+    {
+	return _nodes.findServerInstances(template);
+    }
+
+    java.util.List findServiceInstances(String template)
+    {
+	java.util.List result = _serverTemplates.findServiceInstances(template);
+	result.addAll(_nodes.findServiceInstances(template));
+	return result;
+    }
+
+    TemplateDescriptor findServerTemplateDescriptor(String templateName)
+    {
+	return (TemplateDescriptor)
+	    _descriptor.serverTemplates.get(templateName);
+    }
+
+    TemplateDescriptor findServiceTemplateDescriptor(String templateName)
+    {
+	return (TemplateDescriptor)
+	    _descriptor.serviceTemplates.get(templateName);
+    }
+    
+    ServerTemplates getServerTemplates()
+    {
+	return _serverTemplates;
+    }
+    
+    ServiceTemplates getServiceTemplates()
+    {
+	return _serviceTemplates;
+    }
+
+    ReplicaGroups getReplicaGroups()
+    {
+	return _replicaGroups;
+    }
+
+    Root getRoot()
+    {
+	return this;
+    }
+    
+    Utils.Resolver getResolver()
+    {
+	return _resolver;
+    }
+
+    //
+    // Should only be used for reading
+    //
+    java.util.Map getVariables()
+    {
+	return _descriptor.variables;
+    }
+
+    private boolean isSelected()
+    {
+	if(_coordinator.getCurrentTab() instanceof ApplicationPane)
+	{
+	    return ((ApplicationPane)_coordinator.getCurrentTab()).getRoot() == Root.this;
+	}
+	else
+	{
+	    return false;
+	}
+    }
+
+    private Coordinator _coordinator;
+
+    //
+    // 'this' is the root of the tree
+    //
+    private JTree _tree;
+    private DefaultTreeModel _treeModel;
+    private Utils.Resolver _resolver;
+
+    private boolean _live;
+
+    //
+    // null when this application is not tied to a file 
+    //
+    private File _file;
+    
+    private ApplicationDescriptor _descriptor;
+
+    //
+    // Keeps original version (as shallow copies) to be able to build 
+    // ApplicationUpdateDescriptor. Only used when _live == true
+    //
+    private java.util.Map _origVariables;
+    private String _origDescription;
+    private DistributionDescriptor _origDistrib;
+
+    //
+    // When this application (and children) is being updated, we
+    // no longer apply updates from the registry. Only meaningful when
+    // _live == true
+    //
+    private boolean _registryUpdatesEnabled = true;
+
+    private boolean _discardMe = false;
+
+    //
+    // True when any update was applies to this application 
+    // (including children)
+    //
+    private boolean _updated = false;
+    
+    //
+    // Updates saved when _updated == false and 
+    // _registryUpdatesEnabled == false
+    //
+    private java.util.List _concurrentUpdates = new java.util.LinkedList();
+
+    //
+    // When _live is true and _canUseUpdateDescriptor is true, we can
+    // save the updates using an ApplicationUpdateDescriptor
+    //
+    private boolean _canUseUpdateDescriptor = true;
+    //
+    // Updates to skip (because already applied locally)
+    //
+    private int  _skipUpdates = 0;
+
+
+    private Nodes _nodes;
+    private PropertySets _propertySets;
+    private ReplicaGroups _replicaGroups;
+    private ServerTemplates _serverTemplates;
+    private ServiceTemplates _serviceTemplates;
+
+    private boolean _selectionListenerEnabled = true;
+
+    private ApplicationEditor _editor;
+
+    //
+    // Map editor-class to Editor object
+    //
+    private java.util.Map _editorMap = new java.util.HashMap();
+
+    static private DefaultTreeCellRenderer _cellRenderer;    
+    static private JPopupMenu _popup;
+}