/*******************************************************************************
 * Copyright (c) 2000, 2010 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 * IBM Corporation - initial API and implementation
 * yyyymmdd bug      Email and other contact information
 * -------- -------- -----------------------------------------------------------
 * 20060221   119111 rsinha@ca.ibm.com - Rupam Kuehner
 * 20060327   131605 rsinha@ca.ibm.com - Rupam Kuehner
 * 20060717   150577 makandre@ca.ibm.com - Andrew Mak
 * 20060726   150865 sengpl@ca.ibm.com - Seng Phung-Lu
 * 20060726   150867 sengpl@ca.ibm.com - Seng Phung-Lu
 * 20060728	  151723 mahutch@ca.ibm.com - Mark Hutchinson
 * 20060802   148731 mahutch@ca.ibm.com - Mark Hutchinson
 * 20071129	  206080 zina@ca.ibm.com	- Zina Mostafia Service Deployment Config Dialog group name truncated in NL Testing
 * 20071129	  205583 zina@ca.ibm.com	- Zina Mostafia Selected Server or Server Type is not highlighted in Service Dep.Config
 * 20080428   224726 pmoogk@ca.ibm.com - Peter Moogk
 * 20080527   234225 kathy@ca.ibm.com - Kathy Chan
 * 20090226	  266063 zina@ca.ibm.com - Zina Mostafia Error message truncated in the Service Deployment configuration dialog 
 * 20100526   300725 ericdp@ca.ibm.com - Eric D. Peters, Web service wizard Service Deployment Configuration view options corrupt each other
 *******************************************************************************/
package org.eclipse.jst.ws.internal.consumption.ui.wizard;

import java.util.Arrays;
import java.util.Comparator;
import java.util.Hashtable;
import java.util.Vector;

import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.dialogs.IMessageProvider;
import org.eclipse.jface.dialogs.TitleAreaDialog;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.viewers.ILabelProvider;
import org.eclipse.jst.ws.internal.common.ServerUtils;
import org.eclipse.jst.ws.internal.consumption.ui.ConsumptionUIMessages;
import org.eclipse.jst.ws.internal.consumption.ui.plugin.WebServiceConsumptionUIPlugin;
import org.eclipse.jst.ws.internal.consumption.ui.wsrt.RuntimeDescriptor;
import org.eclipse.jst.ws.internal.consumption.ui.wsrt.WebServiceRuntimeExtensionUtils2;
import org.eclipse.jst.ws.internal.data.TypeRuntimeServer;
import org.eclipse.jst.ws.internal.ui.common.UIUtils;
import org.eclipse.osgi.util.NLS;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Group;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Tree;
import org.eclipse.swt.widgets.TreeItem;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.help.IWorkbenchHelpSystem;
import org.eclipse.wst.command.internal.env.core.common.StatusUtils;
import org.eclipse.wst.server.core.IRuntimeType;
import org.eclipse.wst.server.core.IServer;
import org.eclipse.wst.server.core.IServerType;
import org.eclipse.wst.server.core.ServerCore;
import org.eclipse.wst.server.ui.ServerUICore;

public class RuntimeServerSelectionDialog extends TitleAreaDialog {

	private Shell thisShell;
	private String messageBanner_;
	private Composite primaryGroup_;
	private Group runtimesGroup_;
	private Group serversGroup_;
	private Tree runtimesList_;
	private Tree serverList_;
	private Button viewSelectionByRuntimeButton_;
	private Button viewSelectionByServerButton_;
	private Button viewSelectionByExploreButton_;
	private ILabelProvider labelProvider_;
	private Image serverTypesIcon;
	private Image existingServersIcon;

	/*
	 * CONTEXT_ID PWRS0001 for the selection of runtime, server and project combination
	 */
	private String INFOPOP_PWRS_DIALOG = "PWRS0001";
	/* CONTEXT_ID PWRS0002 for the runtime selection on in the dailog */
	private String INFOPOP_PWRS_LIST_RUNTIMES = "PWRS0002";
	/* CONTEXT_ID PWRS0003 for the server selection in the dialog */
	private String INFOPOP_PWRS_LIST_SERVERS = "PWRS0003";
	/*
	 * CONTEXT_ID PWRS0004 for the EJB Project combo box of the runtime selection dialog
	 */
	//  private String INFOPOP_PWRS_EJB_PROJECT = WebServiceConsumptionUIPlugin.ID
	// + ".PWRS0004";
	/*
	 * CONTEXT_ID PWRS0005 for the runtime view radio button of the runtime selection dialog
	 */
	private String INFOPOP_PWRS_RADIO_RUNTIME = "PWRS0005";
	/*
	 * CONTEXT_ID PWRS0006 for the server view radio button of the runtime selection dialog
	 */
	private String INFOPOP_PWRS_RADIO_SERVER = "PWRS0006";
	/*
	 * CONTEXT_ID PWRS0007 for the explore view radio button of the runtime selection dialog
	 */
	private String INFOPOP_PWRS_RADIO_EXPLORE = "PWRS0007";
	private Hashtable<String, String> serverLabels_;
	private Hashtable <String, IServer>existingServersTable_;
	private String defaultServer_;
	private String defaultRuntime_;
	private String typeId_;

	private RuntimeDescriptor selectedRuntime_;

	private IServer selectedServer_;
	private String selectedServerLabel_;
	private String selectedServerFactoryID_;
	private boolean isExistingServer_;
	private boolean validateOn_ = false;
	private byte selectionMode_;
	private final byte MODE_SERVICE = (byte) 0;
	private final String SERVER_TYPES_ICON = "icons/servers/servers_obj.gif";
	private final String EXISTING_SERVERS_ICON = "icons/servers/existing_server_obj.gif";
	private String serverInstanceID_;

	private boolean selectServerFirst_ = false;

	public RuntimeServerSelectionDialog(Shell shell, byte mode, TypeRuntimeServer ids, String j2eeVersion) {
		super(shell);
		messageBanner_ = ConsumptionUIMessages.PAGE_DESC_WS_RUNTIME_SELECTION;
		setShellStyle(SWT.CLOSE | SWT.TITLE | SWT.BORDER
				| SWT.APPLICATION_MODAL | SWT.RESIZE | getDefaultOrientation());
		selectionMode_ = mode;
		typeId_ = ids.getTypeId();
		defaultRuntime_ = ids.getRuntimeId();
		defaultServer_ = ids.getServerId();
		serverInstanceID_ = ids.getServerInstanceId();
		setIsExistingServer(ids.getServerInstanceId() != null);
		serverLabels_ = new Hashtable<String,String>();
		existingServersTable_ = new Hashtable<String, IServer>();
		labelProvider_ = ServerUICore.getLabelProvider();
	}

	public void setSelectServerFirst(boolean selectServerFirst) {
		selectServerFirst_ = selectServerFirst;
	}

	protected Point getInitialSize()
	{
		return this.getShell().computeSize(550, SWT.DEFAULT, true);
	}

	public TypeRuntimeServer getTypeRuntimeServer() {
		TypeRuntimeServer ids = new TypeRuntimeServer();

		ids.setTypeId(typeId_);
		if (selectedRuntime_ != null)
			ids.setRuntimeId(selectedRuntime_.getId());

		if( selectedServerFactoryID_ == null )
		{
			ids.setServerId( defaultServer_ );
			ids.setServerInstanceId( serverInstanceID_ );
		}
		else
		{
			ids.setServerId(selectedServerFactoryID_);

			if (isExistingServer_ && selectedServer_ != null) 
			{
				ids.setServerInstanceId(selectedServer_.getId());
			}
		}

		return ids;
	}

	private boolean getIsExistingServer() {
		return isExistingServer_;
	}

	private void setIsExistingServer(boolean isExisting) {
		isExistingServer_ = isExisting;
	}

	protected Control createContents(Composite parent) {
		Composite comp = (Composite) super.createContents(parent);  
		comp.pack(); 

		if (selectServerFirst_) {
			viewSelectionByServerButton_.setSelection(true);  
			handleServerViewSelectionEvent();
		}
		else
			viewSelectionByRuntimeButton_.setSelection(true);

		return comp;
	} 

	protected Control createDialogArea(Composite parent) {
		validateOn_ = false;
		thisShell = parent.getShell();
		if (thisShell == null) {
			thisShell = createShell();
		}
		Composite composite = (Composite) super.createDialogArea(parent);
		setMessage(messageBanner_);
		UIUtils uiUtils = new UIUtils(WebServiceConsumptionUIPlugin.ID);
		// Window title
		if (selectionMode_ == MODE_SERVICE) {
			thisShell.setText(ConsumptionUIMessages.PAGE_TITLE_WS_RUNTIME_SELECTION);
			setTitle(ConsumptionUIMessages.PAGE_TITLE_WS_RUNTIME_SELECTION);
		}
		else {
			thisShell.setText(ConsumptionUIMessages.PAGE_TITLE_WS_CLIENT_RUNTIME_SELECTION);
			setTitle(ConsumptionUIMessages.PAGE_TITLE_WS_CLIENT_RUNTIME_SELECTION);
		}
		IWorkbenchHelpSystem helpSystem = PlatformUI.getWorkbench().getHelpSystem();
		helpSystem.setHelp(thisShell, WebServiceConsumptionUIPlugin.ID + "." + INFOPOP_PWRS_DIALOG);

		//  -----------------------------------------------------------------------//
		new Label(composite, SWT.HORIZONTAL);
		//  -----------------------------------------------------------------------//
		// Selection
		thisShell.setToolTipText(ConsumptionUIMessages.TOOLTIP_PWRS_PAGE);

		String groupName =(selectionMode_ == MODE_SERVICE) ? ConsumptionUIMessages.LABEL_SELECTION_VIEW_TITLE:
			ConsumptionUIMessages.LABEL_CLIENT_SELECTION_VIEW_TITLE;
		Group viewSelectionGroup_ = uiUtils.createGroup(composite, groupName, null, null);

		Composite viewSelectionComp_ = uiUtils.createComposite(viewSelectionGroup_, 1);
		viewSelectionByServerButton_ = uiUtils.createRadioButton(viewSelectionComp_, ConsumptionUIMessages.LABEL_SELECTION_VIEW_SERVER, 
				ConsumptionUIMessages.TOOLTIP_PWRS_RADIO_SERVER, INFOPOP_PWRS_RADIO_SERVER);
		viewSelectionByServerButton_.addSelectionListener(new SelectionAdapter () {
			public void widgetSelected(SelectionEvent e) {
				if (!validateOn_)	      return;
				handleServerViewSelectionEvent();
			}	
		});

		viewSelectionByRuntimeButton_ = uiUtils.createRadioButton(viewSelectionComp_, ConsumptionUIMessages.LABEL_SELECTION_VIEW_RUNTIME,
				ConsumptionUIMessages.TOOLTIP_PWRS_RADIO_RUNTIME, INFOPOP_PWRS_RADIO_RUNTIME);
		viewSelectionByRuntimeButton_.addSelectionListener(new SelectionAdapter() {
			public void widgetSelected(SelectionEvent e) {
				if (!validateOn_)	      return;
				handleRuntimeViewSelectionEvent();
			}
		});

		viewSelectionByExploreButton_ = uiUtils.createRadioButton(viewSelectionComp_, ConsumptionUIMessages.LABEL_SELECTION_VIEW_EXPLORE,
				ConsumptionUIMessages.TOOLTIP_PWRS_RADIO_EXPLORE, INFOPOP_PWRS_RADIO_EXPLORE);
		viewSelectionByExploreButton_.addSelectionListener(new SelectionAdapter() {
			public void widgetSelected(SelectionEvent e) {
				if (!validateOn_)	      return;
				handleExploreViewSelectionEvent();
				super.widgetSelected(e);
			}
		});

		primaryGroup_ = uiUtils.createComposite(composite, 1);
		runtimesGroup_ = uiUtils.createGroup( primaryGroup_, ConsumptionUIMessages.LABEL_RUNTIMES_LIST, 
				ConsumptionUIMessages.TOOLTIP_PWRS_LIST_RUNTIMES, INFOPOP_PWRS_LIST_RUNTIMES);
		runtimesGroup_.setLayoutData(new GridData(GridData.FILL_HORIZONTAL | GridData.FILL_VERTICAL));
		runtimesList_ = uiUtils.createTree(runtimesGroup_, ConsumptionUIMessages.TOOLTIP_PWRS_LIST_RUNTIMES, 
				INFOPOP_PWRS_LIST_RUNTIMES, SWT.SINGLE | SWT.BORDER | SWT.V_SCROLL | SWT.H_SCROLL);
		runtimesList_.addSelectionListener(new SelectionAdapter() {
			public void widgetSelected(SelectionEvent e) {
				if (!validateOn_)	      return;
				TreeItem[] runtimeSel = runtimesList_.getSelection();
				processRuntimeListSelection(runtimeSel[0].getText());
				validateServerRuntimeSelection();
			}
		});

		//  Server labels control
		serversGroup_ = uiUtils.createGroup(primaryGroup_, ConsumptionUIMessages.LABEL_SERVERS_LIST, 
				ConsumptionUIMessages.TOOLTIP_PWRS_LIST_SERVERS, null);
		serversGroup_.setLayoutData(new GridData(GridData.FILL_HORIZONTAL | GridData.FILL_VERTICAL));
		serverList_ = uiUtils.createTree(serversGroup_, ConsumptionUIMessages.TOOLTIP_PWRS_LIST_SERVERS, INFOPOP_PWRS_LIST_SERVERS,
				SWT.SINGLE | SWT.BORDER | SWT.V_SCROLL | SWT.H_SCROLL);
		serverList_.setLayoutData(new GridData(GridData.FILL_HORIZONTAL | GridData.FILL_VERTICAL));
		serverList_.addSelectionListener(new SelectionAdapter() {
			public void widgetSelected(SelectionEvent e) {
				if (!validateOn_)	      return;
				processServerListSelection();
				validateServerRuntimeSelection();
			}	
		});

		ServersList serverList = new ServersList();
		serverList.setServerTreeItems(serverList_);

		setRuntimesGroup();
		//  -----------------------------------------------------------------------//
		new Label(composite, SWT.HORIZONTAL);
		validateOn_ = true;
		org.eclipse.jface.dialogs.Dialog.applyDialogFont(parent);
		return composite;
	}

	protected IStatus getStatus() {
		if (selectionMode_ == MODE_SERVICE) {
			if (selectedServerFactoryID_ != null && selectedRuntime_ != null) 
			{

				if (WebServiceRuntimeExtensionUtils2.isServerRuntimeTypeSupported(selectedServerFactoryID_, selectedRuntime_.getId(),
						typeId_))
				{
					return Status.OK_STATUS;
				} else
				{
					String serverLabel = WebServiceRuntimeExtensionUtils2.getServerLabelById(selectedServerFactoryID_);
					String runtimeLabel = selectedRuntime_.getLabel();
					return StatusUtils.errorStatus(NLS.bind(ConsumptionUIMessages.MSG_INVALID_SRT_SELECTIONS, new String[] { serverLabel,
							runtimeLabel }));
				}
			}
		}
		else {

			if (selectedServerFactoryID_ != null && selectedRuntime_ != null)
			{
				String clientId = typeId_;
				if (WebServiceRuntimeExtensionUtils2.isServerClientRuntimeTypeSupported(selectedServerFactoryID_, selectedRuntime_
						.getId(), clientId))
				{
					return Status.OK_STATUS;
				} else
				{
					String serverLabel = WebServiceRuntimeExtensionUtils2.getServerLabelById(selectedServerFactoryID_);
					String runtimeLabel = selectedRuntime_.getLabel();
					return StatusUtils.errorStatus(NLS.bind(ConsumptionUIMessages.MSG_INVALID_SRT_SELECTIONS, new String[] { serverLabel,
							runtimeLabel }));
				}
			}
		}
		// Disable OK button if the runtime selection is invalid
		TreeItem[] runtimeSel = runtimesList_.getSelection();
		if (runtimeSel == null || runtimeSel.length <= 0 || runtimeSel[0].getText().length() == 0) {
			return StatusUtils.infoStatus(messageBanner_);
		}
		// Disable OK button if server selection is invalid
		TreeItem[] serverSel = serverList_.getSelection();
		String currentSelection = (serverSel != null && serverSel.length > 0) ? serverSel[0].getText() : "";
		if (serverSel == null || currentSelection.length() == 0) {
			return StatusUtils.infoStatus(messageBanner_);
		}
		if (!serverLabels_.containsKey(currentSelection) || !existingServersTable_.containsKey(currentSelection)) {
			return StatusUtils.infoStatus(messageBanner_);
		}
		// Disable OK button if category is selected rather than a server
		if (serverSel.length > 0 && serverSel[0].getItemCount()!=0) {
			return StatusUtils.infoStatus(messageBanner_);
		}
		else {
			return Status.OK_STATUS;
		}

	}

	public void validateServerRuntimeSelection() {
		IStatus status = getStatus();
		String message = new String(messageBanner_);
		message = new String(status.getMessage());
		if (status.getSeverity() == Status.ERROR) {
			setMessage(message,IMessageProvider.ERROR);
			getButton(IDialogConstants.OK_ID).setEnabled(false);
		}
		if (status.getSeverity() == Status.WARNING) {
			setMessage(message, IMessageProvider.WARNING);
			getButton(IDialogConstants.OK_ID).setEnabled(true);
		}
		if (status.getSeverity() == Status.INFO) {
			setMessage(message, IMessageProvider.INFORMATION);
			getButton(IDialogConstants.OK_ID).setEnabled(false);
		}
		if (status.getSeverity() == Status.OK) { 
			setMessage(messageBanner_);
			getButton(IDialogConstants.OK_ID).setEnabled(true);
		}
	}

	private void handleRuntimeViewSelectionEvent() {
		GridLayout gl = new GridLayout();
		gl.numColumns = 1;
		gl.makeColumnsEqualWidth = true;
		GridData gd = new GridData(GridData.FILL_BOTH);
		primaryGroup_.setLayout(gl);
		primaryGroup_.setLayoutData(gd);
		runtimesGroup_.moveAbove(serversGroup_);
		primaryGroup_.layout();

		// TODO: Show all runtimes, and only servers supported by current type id
	}

	// 
	// Called by handleEvent() when the user selects the layout to view
	//
	public void handleServerViewSelectionEvent() {
		GridLayout gl = new GridLayout();
		gl.numColumns = 1;
		gl.makeColumnsEqualWidth = true;
		GridData gd = new GridData(GridData.FILL_BOTH);
		primaryGroup_.setLayout(gl);
		primaryGroup_.setLayoutData(gd);
		serversGroup_.moveAbove(runtimesGroup_);
		primaryGroup_.layout();

		// TODO: Show all servers, and only runtimes supported by the current type id
	}

	// 
	// Called by handleEvent() when the user selects the layout to view
	//
	private void handleExploreViewSelectionEvent() {
		GridLayout gl;
		gl = (GridLayout) primaryGroup_.getLayout();
		gl.numColumns = 2;
		gl.makeColumnsEqualWidth = true;
		GridData gd = new GridData(GridData.FILL_BOTH);
		gd.heightHint = 200;
		primaryGroup_.setLayout(gl);
		primaryGroup_.setLayoutData(gd);
		runtimesGroup_.moveAbove(serversGroup_);
		GridData gd2 = (GridData) runtimesGroup_.getLayoutData();
		gd2.heightHint = 200;
		primaryGroup_.layout();

		// TODO: Show all servers and runtimes from the type id

	}

	private void processRuntimeListSelection(String runtimeName) {

		if (selectionMode_ == MODE_SERVICE) {
			selectedRuntime_ = WebServiceRuntimeExtensionUtils2.getRuntimeByLabel(runtimeName);
		}
		else {
			selectedRuntime_ = WebServiceRuntimeExtensionUtils2.getRuntimeByLabel(runtimeName);
		}
	}

	private void processServerListSelection() {
		String currentSelection;
		TreeItem[] serverSel = serverList_.getSelection();
		if (serverSel != null && serverSel.length > 0) {
			currentSelection = serverSel[0].getText();
			if (serverLabels_.containsKey(currentSelection) || existingServersTable_.containsKey(currentSelection)) {
				if (existingServersTable_.containsKey(currentSelection)) {
					selectedServer_ = (IServer) existingServersTable_.get(currentSelection);
					selectedServerLabel_ = currentSelection;
					selectedServerFactoryID_ = selectedServer_.getServerType().getId();
				}
				else if (serverLabels_.containsKey(currentSelection)) {
					TreeItem parentItem = serverSel[0].getParentItem();
					if (parentItem != null && !parentItem.getText().equalsIgnoreCase(ConsumptionUIMessages.LABEL_TREE_EXISTING_SERVERS)) {
						selectedServerLabel_ = currentSelection;
						selectedServer_ = null;
						selectedServerFactoryID_ = (String) serverLabels_.get(currentSelection);
					}
				}

				// check if isExistingServer or new ServerType
				TreeItem parentItem = serverSel[0].getParentItem();
				if (parentItem != null && parentItem.getText().equalsIgnoreCase(ConsumptionUIMessages.LABEL_TREE_EXISTING_SERVERS)) {
					setIsExistingServer(true);
				}
				else {
					setIsExistingServer(false);
				}
			}
			else {
				selectedServer_ = null;
				selectedServerLabel_ = null;
				selectedServerFactoryID_ = null;
				setIsExistingServer(false);
				return;
			}      
		}
	}

	//	private static String getMessage(String key) {
	//	return WebServiceConsumptionUIPlugin.getMessage(key);
	//	}

	private void setRuntimesGroup() {
		runtimesList_.removeAll();
		String[] runtimes = null;

		if (selectionMode_ == MODE_SERVICE) {
			runtimes = WebServiceRuntimeExtensionUtils2.getRuntimesByServiceType(typeId_);
		}
		else {
			runtimes = WebServiceRuntimeExtensionUtils2.getRuntimesByClientType(typeId_);
		}

		//sort the runtimes based on the runtime name (bug 151723)
		Comparator<String> comparator = new RuntimeNameComparator();
		Arrays.sort(runtimes, comparator);

		TreeItem[] runtimeName = new TreeItem[runtimes.length];

		if (runtimes != null) {
			for (int i = 0; i < runtimes.length; i++) {
				String runtimeLabel = getRuntimeLabel(runtimes[i]);
				runtimeName[i] = new TreeItem(runtimesList_, SWT.NONE);
				runtimeName[i].setText(runtimeLabel);

				if (runtimes[i].equalsIgnoreCase(defaultRuntime_)) {
					runtimesList_.setSelection(new TreeItem[] { runtimeName[i]});
					selectedRuntime_ = getRuntime(runtimes[i]);
				}
			}
		}
	}  

	private class RuntimeNameComparator implements Comparator <String>
	{
		public RuntimeNameComparator()
		{		
		}
		//Compare to runtime ID strings by their labels.  Used for sorting.
		public int compare(String item1, String item2) {
			try {
				String runtime1 = (String)item1;
				String runtime2 = (String)item2;		

				return getRuntimeLabel(runtime1).compareToIgnoreCase(getRuntimeLabel(runtime2));
			}
			catch (Exception e)
			{ //Just in case of class cast exception or NPE.  should never happen
			}		
			return 0;
		}
	}

	private String getRuntimeLabel(String type) {
		return getRuntime(type).getLabel();
	}

	private RuntimeDescriptor getRuntime(String type) {
		if (selectionMode_ == MODE_SERVICE) {
			return WebServiceRuntimeExtensionUtils2.getRuntimeById(type);
		}
		else {
			return WebServiceRuntimeExtensionUtils2.getRuntimeById(type);
		}
	}

	/**
	 * 
	 * ServersList class
	 * 
	 * Class which easily creates the Tree structure and entries for existing servers and server types
	 */
	public class ServersList {

		private TreeItem[] existingServersTree;
		boolean existingServer = false;

		public void setServerTreeItems(Tree serversList) {
			this.setExistingServersTree(serversList);
			this.setServerTypesTree(serversList);
		}

		public void setExistingServersTree(Tree serverList) {
			String[] serverIds = this.getAllExistingServers();
			existingServersTree = new TreeItem[1];
			TreeItem[] existingServerItems = new TreeItem[serverIds.length];
			existingServersTree[0] = new TreeItem(serverList, SWT.NONE);
			existingServersTree[0].setText(ConsumptionUIMessages.LABEL_TREE_EXISTING_SERVERS);
			ImageDescriptor id = WebServiceConsumptionUIPlugin.getImageDescriptor(EXISTING_SERVERS_ICON);
			if (id != null) {
				existingServersIcon = id.createImage();
				existingServersTree[0].setImage(existingServersIcon);
			}
			for (int k = 0; k < serverIds.length; k++) {
				IServer server = (IServer) existingServersTable_.get(serverIds[k]);
				if (server != null) {
					IServerType serverType = server.getServerType();
					if (serverType != null) {
						String serverID = serverType.getId();
						existingServerItems[k] = new TreeItem(existingServersTree[0], SWT.NONE);
						existingServerItems[k].setText(serverIds[k]);
						if (serverID.equalsIgnoreCase(defaultServer_) && getIsExistingServer()) {
							existingServersTree[0].setExpanded(true);
							serverList.setSelection(new TreeItem[] { existingServerItems[k]});
							existingServer = true;
							RuntimeServerSelectionDialog.this.setIsExistingServer(true);
							selectedServer_ = server;
							selectedServerLabel_ = serverIds[k];
							selectedServerFactoryID_ = serverID;
						}
						existingServerItems[k].setImage(labelProvider_.getImage(serverType));
					}
				}
			}
		}

		public void setServerTypesTree(Tree serverList) {

			TreeItem[] serverTypesTree = new TreeItem[1];
			serverTypesTree[0] = new TreeItem(serverList, SWT.NONE);
			serverTypesTree[0].setText(ConsumptionUIMessages.LABEL_TREE_SERVER_TYPES);
			ImageDescriptor id = WebServiceConsumptionUIPlugin.getImageDescriptor(SERVER_TYPES_ICON);
			if (id != null) {
				serverTypesIcon = id.createImage();
				serverTypesTree[0].setImage(serverTypesIcon);
			}
			Hashtable <IServerType, IRuntimeType> categories_ = new Hashtable<IServerType, IRuntimeType>();
			Hashtable <IRuntimeType, TreeItem>categoryTreeItem = new Hashtable<IRuntimeType, TreeItem>();
			String[] serverIds = null;
			// rm String wst = wse.getWebServiceType();
			if (selectionMode_ == MODE_SERVICE) {
				serverIds = WebServiceRuntimeExtensionUtils2.getServerFactoryIdsByServiceType(typeId_);
			}
			else {
				serverIds = WebServiceRuntimeExtensionUtils2.getAllClientServerFactoryIds();
			}
			// rm serverId =
			// wssrtRegistry.getServerFactoryIdsByType(wse.getWebServiceType());
			if (serverIds == null) {
				serverIds = getAllServerTypes();
			}
			TreeItem[] parent = new TreeItem[serverIds.length];
			TreeItem[] item = new TreeItem[serverIds.length];
			if (serverIds != null) {
				for (int i = 0; i < serverIds.length; i++) {
					String server = ServerUtils.getInstance().getServerLabelForId(serverIds[i]);
					if (server != null) {
						RuntimeServerSelectionDialog.this.serverLabels_.put(server, serverIds[i]);
						IServerType serverType = ServerCore.findServerType(serverIds[i]);
						IRuntimeType runtimeType = serverType.getRuntimeType();
						if (!categories_.containsKey(serverType) && runtimeType != null) {
							categories_.put(serverType, runtimeType);
							if (categoryTreeItem.get(runtimeType) == null) {
								String categoryText = runtimeType.getName();
								Image categoryImage = labelProvider_.getImage(runtimeType);
								parent[i] = new TreeItem(serverTypesTree[0], SWT.NONE);
								parent[i].setText(categoryText);
								parent[i].setImage(categoryImage);
								categoryTreeItem.put(runtimeType, parent[i]);
							}
							else {
								parent[i] = (TreeItem) categoryTreeItem.get(runtimeType);
							}
							String factoryText = serverType.getName();
							Image factoryImage = labelProvider_.getImage(serverType);
							item[i] = new TreeItem(parent[i], SWT.NONE);
							item[i].setText(factoryText);
							item[i].setImage(factoryImage);
							item[i].setData(serverType);
							if (serverIds[i].equals(defaultServer_) && !existingServer) {
								serverList.setSelection(new TreeItem[] { item[i]});
								selectedServer_ = null;
								selectedServerLabel_ = factoryText;
								selectedServerFactoryID_ = (String) serverLabels_.get(selectedServerLabel_);
							}
						}
					}
				}
			}

		}

		/**
		 * Get all servers in the workspace
		 * 
		 * @return String[] of existing server names
		 */
		private String[] getAllExistingServers() {
			Vector<String> serverIds = new Vector<String>();
			{
				IServer[] servers = ServerCore.getServers();
				if (servers != null && servers.length!=0) {
					for (int i = 0; i < servers.length; i++) {
						IServer server = (IServer) servers[i];
						serverIds.add(server.getName());
						existingServersTable_.put(server.getName(), server);
					}
				}
			}
			return (String[]) serverIds.toArray(new String[serverIds.size()]);
		}

		/**
		 * Get all server types available for creation
		 * 
		 * @return String[] of server names
		 */
		private String[] getAllServerTypes() {
			Vector<String>serverTypes_ = new Vector<String>();
			IServerType[] defaultServersList = ServerCore.getServerTypes();
			for (int i = 0; i < defaultServersList.length; i++) {
				IServerType serverType = (IServerType) defaultServersList[i];
				serverTypes_.add(serverType.getId());
			}
			return (String[]) serverTypes_.toArray(new String[serverTypes_.size()]);
		}
	}
}