databrowser/src/com/gemstone/gemfire/mgmt/DataBrowser/ui/ConnectionPrefsPage.java - geode - Git at Google

 /*=========================================================================
  * (c)Copyright 2002-2011, GemStone Systems, Inc. All Rights Reserved.
  * 1260 NW Waterhouse Ave., Suite 200, Beaverton, OR 97006
  * All Rights Reserved.
  * =======================================================================*/
 package com.gemstone.gemfire.mgmt.DataBrowser.ui;

 import java.io.IOException;
 import java.io.InputStream;

 import org.eclipse.jface.preference.PreferencePage;
 import org.eclipse.jface.resource.ImageDescriptor;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.SWTError;
 import org.eclipse.swt.SWTException;
 import org.eclipse.swt.graphics.Image;
 import org.eclipse.swt.layout.FillLayout;
 import org.eclipse.swt.layout.GridData;
 import org.eclipse.swt.layout.GridLayout;
 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.MessageBox;
 import org.eclipse.swt.widgets.Text;

 import com.gemstone.gemfire.mgmt.DataBrowser.prefs.DataBrowserPreferences;
 import com.gemstone.gemfire.mgmt.DataBrowser.prefs.DefaultPreferences;
 import com.gemstone.gemfire.mgmt.DataBrowser.utils.LogUtil;

 /**
  * @author mjha
  *
  */
 public class ConnectionPrefsPage extends PreferencePage implements
     IDataBrowserPrefsPage {

   // -- MGH - fixing a default size. Unable to figure out how to dynamically
   // size (or it is possible?)
   // private static final Point ptDef = new Point( 450, 450 );

   private Composite       parent_     = null;
   private Composite       basePane_   = null;
   private Group           grp1_       = null;
   private Group           clientGroup = null;
   private ImageDescriptor imgDesc_;
   private Image           img_;
   //private Text            txtReconnectInterval;
   //private Text            txtNoOfReconnect;
   private Text            txtTimeout;
   private Text            txtMru;
   private Text            socketReadTimeout;

   /**
    *
    */
   public ConnectionPrefsPage() {
     // TODO Auto-generated constructor stub
   }

   /**
    * @param title
    */
   public ConnectionPrefsPage(String title) {
     super(title);
   }

   /**
    * @param title
    * @param image
    */
   public ConnectionPrefsPage(String title, ImageDescriptor image) {
     super(title, image);
   }


   /* (non-Javadoc)
    * @see org.eclipse.jface.dialogs.DialogPage#dispose()
    */
   @Override
   public void dispose() {
     if( null != img_ ) {
       img_.dispose();
     }

     imgDesc_ = null;
     super.dispose();
   }

   /*
    * (non-Javadoc)
    *
    * @see
    * org.eclipse.jface.preference.PreferencePage#createContents(org.eclipse.
    * swt.widgets.Composite)
    */
   @Override
   protected Control createContents(Composite prnt) {
     parent_ = prnt;
     basePane_ = new Composite(parent_, SWT.NONE);

     FillLayout lytBase = new FillLayout();
     lytBase.type = SWT.VERTICAL;
     lytBase.marginHeight = 5;
     lytBase.marginWidth = 5;
     basePane_.setLayout(lytBase);

     grp1_ = new Group(basePane_, SWT.SHADOW_ETCHED_IN);
     grp1_.setText("Locator/JMX Manager Connection");

     GridLayout lytGridGrp1 = new GridLayout();
     lytGridGrp1.numColumns = 2;
     lytGridGrp1.verticalSpacing = 20;
     lytGridGrp1.marginHeight = 20;
     lytGridGrp1.makeColumnsEqualWidth = true;
     grp1_.setLayout(lytGridGrp1);

     GridData gridData = new GridData(SWT.BEGINNING, SWT.TOP, false, false);
     gridData.verticalSpan = 2;

     Label lblMru = new Label(grp1_, SWT.BOLD);
     lblMru.setLayoutData(gridData);
     String text = "Number of Locator/JMX Manager entries, to keep in history: ";
     lblMru.setText(text);

     txtMru = new Text(grp1_, SWT.BORDER);
     txtMru.setToolTipText("Number of host/port MRU entries for Locator/JMX Manager to store");
     txtMru.addModifyListener(new PrefModifyListenerAdapter(this));

     gridData = new GridData();
     gridData.horizontalAlignment = SWT.FILL;
     gridData.verticalAlignment = SWT.BOTTOM;
     gridData.grabExcessHorizontalSpace = true;
     gridData.verticalSpan = 2;
     txtMru.setLayoutData(gridData);


     Label lblTimeout = new Label(grp1_, SWT.BOLD);
     lblTimeout.setText("Timeout on connection with Locator/JMX Manager (ms): ");

     txtTimeout = new Text(grp1_, SWT.BORDER);
     gridData = new GridData();
     gridData.horizontalAlignment = SWT.FILL;
     gridData.grabExcessHorizontalSpace = true;
     txtTimeout.setLayoutData(gridData);
     txtTimeout.setToolTipText("Timeout to set on the connection attempts to the Locator/JMX Manager in milliseconds");
     txtTimeout.addModifyListener(new PrefModifyListenerAdapter(this));

     clientGroup = new Group(basePane_, SWT.SHADOW_ETCHED_IN);
     clientGroup.setText("Client Connection");

     GridLayout lytGridGrp2 = new GridLayout();
     lytGridGrp2.numColumns = 2;
     lytGridGrp2.verticalSpacing = 20;
     lytGridGrp2.marginHeight = 20;
     lytGridGrp2.makeColumnsEqualWidth = true;
     clientGroup.setLayout(lytGridGrp2);

     Label lblsockTimeout = new Label(clientGroup, SWT.BOLD);
     lblsockTimeout.setText("Server Response Timeout (ms): ");

     socketReadTimeout = new Text(clientGroup, SWT.BORDER);
     gridData = new GridData();
     gridData.horizontalAlignment = SWT.FILL;
     gridData.grabExcessHorizontalSpace = true;
     socketReadTimeout.setLayoutData(gridData);
     socketReadTimeout.setToolTipText("The amount of time, in milliseconds, to wait for a response from a server");
     socketReadTimeout.addModifyListener(new PrefModifyListenerAdapter(this));

     /*Label reconnectLabel = new Label(grp1_, SWT.NONE);
     reconnectLabel.setText( "Retry attempts to connect to AdminAgent:" );
     gridData = new GridData(SWT.BEGINNING, GridData.VERTICAL_ALIGN_BEGINNING,
         false, false);
     reconnectLabel.setLayoutData(gridData);

     txtNoOfReconnect = new Text(grp1_, SWT.BORDER);
     gridData = new GridData(SWT.FILL, GridData.VERTICAL_ALIGN_BEGINNING,
         true, false);
     txtNoOfReconnect.setLayoutData(gridData);
     txtNoOfReconnect.setEditable(true);
     txtNoOfReconnect.setToolTipText("Number of attemtps to connect to the AdminAgent");
     txtNoOfReconnect.addModifyListener(new PrefModifyListenerAdapter(this));

     Label reconnectIntervalLabel = new Label(grp1_, SWT.NONE);
     reconnectIntervalLabel.setText("Reconnect attempt interval (ms): ");
     gridData = new GridData(SWT.BEGINNING, GridData.VERTICAL_ALIGN_BEGINNING,
         false, false);
     reconnectIntervalLabel.setLayoutData(gridData);

     txtReconnectInterval = new Text(grp1_, SWT.BORDER);
     gridData = new GridData(SWT.FILL, GridData.VERTICAL_ALIGN_BEGINNING,
         true, false);
     txtReconnectInterval.setLayoutData(gridData);
     txtReconnectInterval.setEditable(true);
     txtReconnectInterval.setToolTipText("Wait time between reconnect attemtps in milliseconds");
     txtReconnectInterval.addModifyListener(new PrefModifyListenerAdapter(this)); */
     setPreferences(false);

     return basePane_;
   }

   /*
    * (non-Javadoc)
    *
    * @see org.eclipse.jface.preference.PreferencePage#performHelp()
    */
   @Override
   public void performHelp() {
     // TODO MGH - hook to display Help window with relevant information
   }

   /*
    * (non-Javadoc)
    *
    * @see org.eclipse.jface.preference.PreferencePage#performApply()
    */
   @Override
   protected void performApply() {
     String mruStr = txtMru.getText();
     String timeoutStr = txtTimeout.getText();
     String socketReadTimeoutStr = socketReadTimeout.getText();
 //    String noOfReconnectStr = txtNoOfReconnect.getText();
 //    String reconnectintervalStr = txtReconnectInterval.getText();

     long reconnectinterval;
     long timeout;
     int readTimeout;
     int mru;
     int noOfReconnect;
 //    try {
 //      reconnectinterval = Long.valueOf(reconnectintervalStr);
 //    }
 //    catch (NumberFormatException e) {
 //      MessageBox mb = new MessageBox(getShell());
 //      mb.setText("DataBrowser Error");
 //      mb.setMessage("Please enter a valid ( greater than zero ) value for the reconnect interval.");
 //      mb.open();
 //      txtReconnectInterval.setFocus();
 //      return ;
 //    }
 //
 //    if(reconnectinterval <= 0) {
 //      MessageBox mb = new MessageBox(getShell());
 //      mb.setText("DataBrowser Error");
 //      mb.setMessage("Please enter a valid ( greater than zero ) value for the reconnect interval.");
 //      mb.open();
 //      this.txtReconnectInterval.setFocus();
 //      return;
 //    }


     try {
       timeout = Long.valueOf(timeoutStr);
     }
     catch (NumberFormatException e) {
       MessageBox mb = new MessageBox(getShell());
       mb.setText("DataBrowser Error");
       mb.setMessage("Please enter a valid ( greater than zero ) value for the connection timeout interval (in milliseconds).");
       mb.open();
       txtTimeout.setFocus();
       return;
     }

     if(timeout <= 0) {
       MessageBox mb = new MessageBox(getShell());
       mb.setText("DataBrowser Error");
       mb.setMessage("Please enter a valid ( greater than zero ) value for the connection timeout interval (in milliseconds).");
       mb.open();
       this.txtTimeout.setFocus();
       return;
     }


     try {
       mru = Integer.valueOf(mruStr);
     }
     catch (NumberFormatException e) {
       MessageBox mb = new MessageBox(getShell());
       mb.setText("DataBrowser Error");
       mb.setMessage("Please enter a valid ( non negative ) value for the number of Locator/JMX Manager entries to keep in the history");
       mb.open();
       txtMru.setFocus();
       return ;
     }

     if(mru < 0) {
       MessageBox mb = new MessageBox(getShell());
       mb.setText("DataBrowser Error");
       mb.setMessage("Please enter a valid ( non negative ) value for the number of Locator/JMX Manager entries to keep in the history");
       mb.open();
       this.txtMru.setFocus();
       return;
     }

     try {
       readTimeout = Integer.valueOf(socketReadTimeoutStr);
     } catch (NumberFormatException e) {
       MessageBox mb = new MessageBox(getShell());
       mb.setText("DataBrowser Error");
       mb.setMessage("Please enter a valid ( greater than zero ) numeric value for server response timeout interval (in milliseconds).");
       mb.open();
       socketReadTimeout.setFocus();
       return;
     }

     if(readTimeout <= 0) {
       MessageBox mb = new MessageBox(getShell());
       mb.setText("DataBrowser Error");
       mb.setMessage("Please enter a valid ( greater than zero ) value for server response timeout interval (in milliseconds).");
       mb.open();
       this.socketReadTimeout.setFocus();
       return;
     }


 //    try {
 //      noOfReconnect = Integer.valueOf(noOfReconnectStr);
 //    }
 //    catch (NumberFormatException e) {
 //      MessageBox mb = new MessageBox(getShell());
 //      mb.setText("DataBrowser Error");
 //      mb.setMessage( "Please enter a valid ( non negative ) value for the number of retry attempts." );
 //      mb.open();
 //      txtNoOfReconnect.setFocus();
 //      return;
 //    }
 //
 //    if(noOfReconnect < 0) {
 //      MessageBox mb = new MessageBox(getShell());
 //      mb.setText("DataBrowser Error");
 //      mb.setMessage("Please enter a valid ( non negative ) value for the number of retry attempts.");
 //      mb.open();
 //      this.txtNoOfReconnect.setFocus();
 //      return;
 //    }


     DataBrowserPreferences.setConnectionMRUHListLimit(mru);
     DataBrowserPreferences.setConnectionTimeoutInterval(timeout);
     DataBrowserPreferences.setSocketReadTimeoutInterval(readTimeout);
 //    DataBrowserPreferences.setConRetryInterval(reconnectinterval);
 //    DataBrowserPreferences.setConRetryAttempts(noOfReconnect);
   }

   @Override
   public boolean performOk() {
     performApply();
     return super.performOk();
   }

   public boolean isValid() {
     String mruStr = txtMru.getText();
     String timeoutStr = txtTimeout.getText();
     String readTimeoutStr = socketReadTimeout.getText();
 //    String noOfReconnectStr = txtNoOfReconnect.getText();
 //    String reconnectintervalStr = txtReconnectInterval.getText();

     long temp1;
     int temp2;
     long readTimoutLong;

     try {
       temp2 = Integer.valueOf(mruStr);
     }
     catch (NumberFormatException e) {
       temp2 = -1;
     }

     if(temp2 < 0) {
       setErrorMessage("Please enter a valid ( non negative ) value for the number of Locator/JMX Manager entries to keep in the history");
       txtTimeout.setEnabled(false);
       socketReadTimeout.setEnabled(false);
 //      txtNoOfReconnect.setEnabled(false);
 //      txtReconnectInterval.setEnabled(false);
       return false;
     }

     try {
       temp1 = Long.valueOf(timeoutStr);
     }
     catch (NumberFormatException e) {
       temp1 = -1;
     }

     if(temp1 <= 0) {
       setErrorMessage("Please enter a valid ( greater than zero ) value for the connection timeout interval (in milliseconds).");
       txtMru.setEnabled(false);
       socketReadTimeout.setEnabled(false);
 //      txtNoOfReconnect.setEnabled(false);
 //      txtReconnectInterval.setEnabled(false);
       return false;
     }

     try {
       readTimoutLong = Long.valueOf(readTimeoutStr);
     }
     catch (NumberFormatException e) {
       readTimoutLong = -1;
     }

     if(readTimoutLong <= 0) {
       setErrorMessage("Please enter a valid ( greater than zero ) numeric value for server response timeout interval (in milliseconds).");
       txtMru.setEnabled(false);
       txtTimeout.setEnabled(false);
 //      txtNoOfReconnect.setEnabled(false);
 //      txtReconnectInterval.setEnabled(false);
       return false;
     }

 //    try {
 //      temp2 = Integer.valueOf(noOfReconnectStr);
 //    }
 //    catch (NumberFormatException e) {
 //      temp2 = -1;
 //    }
 //
 //    if(temp2 < 0) {
 //      setErrorMessage("Please enter a valid ( non negative ) value for the number of retry attempts.");
 //      txtMru.setEnabled(false);
 //      txtTimeout.setEnabled(false);
 //      txtReconnectInterval.setEnabled(false);
 //      return false;
 //    }

 //    try {
 //      temp1 = Long.valueOf(reconnectintervalStr);
 //    }
 //    catch (NumberFormatException e) {
 //      temp1 = -1;
 //    }
 //
 //    if(temp1 <= 0) {
 //      setErrorMessage("Please enter a valid ( greater than zero ) value for the reconnect interval.");
 //      txtTimeout.setEnabled(false);
 //      txtNoOfReconnect.setEnabled(false);
 //      txtMru.setEnabled(false);
 //      return false;
 //    }

     setErrorMessage(null);
     txtMru.setEnabled(true);
     txtTimeout.setEnabled(true);
     socketReadTimeout.setEnabled(true);
 //    txtNoOfReconnect.setEnabled(true);
 //    txtReconnectInterval.setEnabled(true);
     return true;
   }

   /*
    * (non-Javadoc)
    *
    * @see org.eclipse.jface.preference.PreferencePage#performDefaults()
    */
   @Override
   protected void performDefaults() {
     setPreferences(true);
     super.performDefaults();
   }

   private void setPreferences(boolean isDefault){
     String temp1 ;
     String temp2 ;
     String readTimeoutStr ;

     if(isDefault) {
       temp1 = String.valueOf(DefaultPreferences.DEFAULT_MRU_HOST_PORT_LIST_LIMIT);
       temp2 = String.valueOf(DefaultPreferences.DEFAULT_CONNECTION_TIMEOUT);
       readTimeoutStr = String.valueOf(DefaultPreferences.DEFAULT_SOCKET_READ_TIMEOUT);

     } else {
       temp1 = String.valueOf(DataBrowserPreferences.getConnectionMRUHListLimit());
       temp2 = String.valueOf(DataBrowserPreferences.getConnectionTimeoutInterval());
       readTimeoutStr = String.valueOf(DataBrowserPreferences.getSocketReadTimeoutInterval());
     }

     txtMru.setText(temp1);
     txtTimeout.setText(temp2);
     socketReadTimeout.setText(readTimeoutStr);
   }

   /*
    * (non-Javadoc)
    *
    * @see org.eclipse.jface.preference.PreferencePage#setTitle(java.lang.String)
    */
   @Override
   public void setTitle(String title) {
     super.setTitle("Connection Options");
   }

   // ----------------------------------------------------------------------------
   // IDataBrowserPrefsPage methods
   // ----------------------------------------------------------------------------

   public String getID() {
     return "Connection";
   }

   public String getLabel() {
     return "Connection";
   }

   public ImageDescriptor getImageDescriptor() {
     final String fqnImage_ = "/com/gemstone/gemfire/mgmt/DataBrowser/resources/icons/QueryPrefsPageIcon.png";
     InputStream isImage = null;
     try {
       isImage = getClass().getResourceAsStream(fqnImage_);

       if (null != isImage) {
         img_ = new Image(null, isImage);
         imgDesc_ = ImageDescriptor.createFromImage(img_);
       }
     } catch (NullPointerException xptn) {
       // handler for getResourceAsStream
       LogUtil.warning( "NullPointedException in QueryPrefsPage.getImageDescriptor (getResourceAsStream). Continuing...", xptn );
     } catch (SWTException xptn) {
       // handler for org.eclipse.swt.graphics.Image ctor
       // we continue an try to add the other nodes
       LogUtil.warning( "SWTException in QueryPrefsPage.getImageDescriptor (org.eclipse.swt.graphics.Image ctor). Continuing...", xptn );
     } catch (SWTError err) {
       // Log this (Image ctor could throw this), and rethrow
       LogUtil.error( "SWTError in QueryPrefsPage.getImageDescriptor (org.eclipse.swt.graphics.Image ctor). This could be due to handles in the underlying widget kit being exhaused. Terminating.", err );
       throw err;
     }
     finally {
       if( null != isImage ) {
         try {
           isImage.close();
         } catch (IOException e) {
           LogUtil.warning( "IOException in QueryPrefsPage.getImageDescriptor (isImage.close(..)). Ignoring.", e );
         }
         isImage = null;
       }
     }

     return imgDesc_;
   }
 }
	/*=========================================================================
	* (c)Copyright 2002-2011, GemStone Systems, Inc. All Rights Reserved.
	* 1260 NW Waterhouse Ave., Suite 200, Beaverton, OR 97006
	* All Rights Reserved.
	* =======================================================================*/
	package com.gemstone.gemfire.mgmt.DataBrowser.ui;

	import java.io.IOException;
	import java.io.InputStream;

	import org.eclipse.jface.preference.PreferencePage;
	import org.eclipse.jface.resource.ImageDescriptor;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.SWTError;
	import org.eclipse.swt.SWTException;
	import org.eclipse.swt.graphics.Image;
	import org.eclipse.swt.layout.FillLayout;
	import org.eclipse.swt.layout.GridData;
	import org.eclipse.swt.layout.GridLayout;
	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.MessageBox;
	import org.eclipse.swt.widgets.Text;

	import com.gemstone.gemfire.mgmt.DataBrowser.prefs.DataBrowserPreferences;
	import com.gemstone.gemfire.mgmt.DataBrowser.prefs.DefaultPreferences;
	import com.gemstone.gemfire.mgmt.DataBrowser.utils.LogUtil;

	/**
	* @author mjha
	*
	*/
	public class ConnectionPrefsPage extends PreferencePage implements
	IDataBrowserPrefsPage {

	// -- MGH - fixing a default size. Unable to figure out how to dynamically
	// size (or it is possible?)
	// private static final Point ptDef = new Point( 450, 450 );

	private Composite parent_ = null;
	private Composite basePane_ = null;
	private Group grp1_ = null;
	private Group clientGroup = null;
	private ImageDescriptor imgDesc_;
	private Image img_;
	//private Text txtReconnectInterval;
	//private Text txtNoOfReconnect;
	private Text txtTimeout;
	private Text txtMru;
	private Text socketReadTimeout;

	/**
	*
	*/
	public ConnectionPrefsPage() {
	// TODO Auto-generated constructor stub
	}

	/**
	* @param title
	*/
	public ConnectionPrefsPage(String title) {
	super(title);
	}

	/**
	* @param title
	* @param image
	*/
	public ConnectionPrefsPage(String title, ImageDescriptor image) {
	super(title, image);
	}



	/* (non-Javadoc)
	* @see org.eclipse.jface.dialogs.DialogPage#dispose()
	*/
	@Override
	public void dispose() {
	if( null != img_ ) {
	img_.dispose();
	}

	imgDesc_ = null;
	super.dispose();
	}

	/*
	* (non-Javadoc)
	*
	* @see
	* org.eclipse.jface.preference.PreferencePage#createContents(org.eclipse.
	* swt.widgets.Composite)
	*/
	@Override
	protected Control createContents(Composite prnt) {
	parent_ = prnt;
	basePane_ = new Composite(parent_, SWT.NONE);

	FillLayout lytBase = new FillLayout();
	lytBase.type = SWT.VERTICAL;
	lytBase.marginHeight = 5;
	lytBase.marginWidth = 5;
	basePane_.setLayout(lytBase);

	grp1_ = new Group(basePane_, SWT.SHADOW_ETCHED_IN);
	grp1_.setText("Locator/JMX Manager Connection");

	GridLayout lytGridGrp1 = new GridLayout();
	lytGridGrp1.numColumns = 2;
	lytGridGrp1.verticalSpacing = 20;
	lytGridGrp1.marginHeight = 20;
	lytGridGrp1.makeColumnsEqualWidth = true;
	grp1_.setLayout(lytGridGrp1);

	GridData gridData = new GridData(SWT.BEGINNING, SWT.TOP, false, false);
	gridData.verticalSpan = 2;

	Label lblMru = new Label(grp1_, SWT.BOLD);
	lblMru.setLayoutData(gridData);
	String text = "Number of Locator/JMX Manager entries, to keep in history: ";
	lblMru.setText(text);

	txtMru = new Text(grp1_, SWT.BORDER);
	txtMru.setToolTipText("Number of host/port MRU entries for Locator/JMX Manager to store");
	txtMru.addModifyListener(new PrefModifyListenerAdapter(this));

	gridData = new GridData();
	gridData.horizontalAlignment = SWT.FILL;
	gridData.verticalAlignment = SWT.BOTTOM;
	gridData.grabExcessHorizontalSpace = true;
	gridData.verticalSpan = 2;
	txtMru.setLayoutData(gridData);


	Label lblTimeout = new Label(grp1_, SWT.BOLD);
	lblTimeout.setText("Timeout on connection with Locator/JMX Manager (ms): ");

	txtTimeout = new Text(grp1_, SWT.BORDER);
	gridData = new GridData();
	gridData.horizontalAlignment = SWT.FILL;
	gridData.grabExcessHorizontalSpace = true;
	txtTimeout.setLayoutData(gridData);
	txtTimeout.setToolTipText("Timeout to set on the connection attempts to the Locator/JMX Manager in milliseconds");
	txtTimeout.addModifyListener(new PrefModifyListenerAdapter(this));

	clientGroup = new Group(basePane_, SWT.SHADOW_ETCHED_IN);
	clientGroup.setText("Client Connection");

	GridLayout lytGridGrp2 = new GridLayout();
	lytGridGrp2.numColumns = 2;
	lytGridGrp2.verticalSpacing = 20;
	lytGridGrp2.marginHeight = 20;
	lytGridGrp2.makeColumnsEqualWidth = true;
	clientGroup.setLayout(lytGridGrp2);

	Label lblsockTimeout = new Label(clientGroup, SWT.BOLD);
	lblsockTimeout.setText("Server Response Timeout (ms): ");

	socketReadTimeout = new Text(clientGroup, SWT.BORDER);
	gridData = new GridData();
	gridData.horizontalAlignment = SWT.FILL;
	gridData.grabExcessHorizontalSpace = true;
	socketReadTimeout.setLayoutData(gridData);
	socketReadTimeout.setToolTipText("The amount of time, in milliseconds, to wait for a response from a server");
	socketReadTimeout.addModifyListener(new PrefModifyListenerAdapter(this));

	/*Label reconnectLabel = new Label(grp1_, SWT.NONE);
	reconnectLabel.setText( "Retry attempts to connect to AdminAgent:" );
	gridData = new GridData(SWT.BEGINNING, GridData.VERTICAL_ALIGN_BEGINNING,
	false, false);
	reconnectLabel.setLayoutData(gridData);

	txtNoOfReconnect = new Text(grp1_, SWT.BORDER);
	gridData = new GridData(SWT.FILL, GridData.VERTICAL_ALIGN_BEGINNING,
	true, false);
	txtNoOfReconnect.setLayoutData(gridData);
	txtNoOfReconnect.setEditable(true);
	txtNoOfReconnect.setToolTipText("Number of attemtps to connect to the AdminAgent");
	txtNoOfReconnect.addModifyListener(new PrefModifyListenerAdapter(this));

	Label reconnectIntervalLabel = new Label(grp1_, SWT.NONE);
	reconnectIntervalLabel.setText("Reconnect attempt interval (ms): ");
	gridData = new GridData(SWT.BEGINNING, GridData.VERTICAL_ALIGN_BEGINNING,
	false, false);
	reconnectIntervalLabel.setLayoutData(gridData);

	txtReconnectInterval = new Text(grp1_, SWT.BORDER);
	gridData = new GridData(SWT.FILL, GridData.VERTICAL_ALIGN_BEGINNING,
	true, false);
	txtReconnectInterval.setLayoutData(gridData);
	txtReconnectInterval.setEditable(true);
	txtReconnectInterval.setToolTipText("Wait time between reconnect attemtps in milliseconds");
	txtReconnectInterval.addModifyListener(new PrefModifyListenerAdapter(this)); */
	setPreferences(false);

	return basePane_;
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.jface.preference.PreferencePage#performHelp()
	*/
	@Override
	public void performHelp() {
	// TODO MGH - hook to display Help window with relevant information
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.jface.preference.PreferencePage#performApply()
	*/
	@Override
	protected void performApply() {
	String mruStr = txtMru.getText();
	String timeoutStr = txtTimeout.getText();
	String socketReadTimeoutStr = socketReadTimeout.getText();
	// String noOfReconnectStr = txtNoOfReconnect.getText();
	// String reconnectintervalStr = txtReconnectInterval.getText();

	long reconnectinterval;
	long timeout;
	int readTimeout;
	int mru;
	int noOfReconnect;
	// try {
	// reconnectinterval = Long.valueOf(reconnectintervalStr);
	// }
	// catch (NumberFormatException e) {
	// MessageBox mb = new MessageBox(getShell());
	// mb.setText("DataBrowser Error");
	// mb.setMessage("Please enter a valid ( greater than zero ) value for the reconnect interval.");
	// mb.open();
	// txtReconnectInterval.setFocus();
	// return ;
	// }
	//
	// if(reconnectinterval <= 0) {
	// MessageBox mb = new MessageBox(getShell());
	// mb.setText("DataBrowser Error");
	// mb.setMessage("Please enter a valid ( greater than zero ) value for the reconnect interval.");
	// mb.open();
	// this.txtReconnectInterval.setFocus();
	// return;
	// }


	try {
	timeout = Long.valueOf(timeoutStr);
	}
	catch (NumberFormatException e) {
	MessageBox mb = new MessageBox(getShell());
	mb.setText("DataBrowser Error");
	mb.setMessage("Please enter a valid ( greater than zero ) value for the connection timeout interval (in milliseconds).");
	mb.open();
	txtTimeout.setFocus();
	return;
	}

	if(timeout <= 0) {
	MessageBox mb = new MessageBox(getShell());
	mb.setText("DataBrowser Error");
	mb.setMessage("Please enter a valid ( greater than zero ) value for the connection timeout interval (in milliseconds).");
	mb.open();
	this.txtTimeout.setFocus();
	return;
	}


	try {
	mru = Integer.valueOf(mruStr);
	}
	catch (NumberFormatException e) {
	MessageBox mb = new MessageBox(getShell());
	mb.setText("DataBrowser Error");
	mb.setMessage("Please enter a valid ( non negative ) value for the number of Locator/JMX Manager entries to keep in the history");
	mb.open();
	txtMru.setFocus();
	return ;
	}

	if(mru < 0) {
	MessageBox mb = new MessageBox(getShell());
	mb.setText("DataBrowser Error");
	mb.setMessage("Please enter a valid ( non negative ) value for the number of Locator/JMX Manager entries to keep in the history");
	mb.open();
	this.txtMru.setFocus();
	return;
	}

	try {
	readTimeout = Integer.valueOf(socketReadTimeoutStr);
	} catch (NumberFormatException e) {
	MessageBox mb = new MessageBox(getShell());
	mb.setText("DataBrowser Error");
	mb.setMessage("Please enter a valid ( greater than zero ) numeric value for server response timeout interval (in milliseconds).");
	mb.open();
	socketReadTimeout.setFocus();
	return;
	}

	if(readTimeout <= 0) {
	MessageBox mb = new MessageBox(getShell());
	mb.setText("DataBrowser Error");
	mb.setMessage("Please enter a valid ( greater than zero ) value for server response timeout interval (in milliseconds).");
	mb.open();
	this.socketReadTimeout.setFocus();
	return;
	}


	// try {
	// noOfReconnect = Integer.valueOf(noOfReconnectStr);
	// }
	// catch (NumberFormatException e) {
	// MessageBox mb = new MessageBox(getShell());
	// mb.setText("DataBrowser Error");
	// mb.setMessage( "Please enter a valid ( non negative ) value for the number of retry attempts." );
	// mb.open();
	// txtNoOfReconnect.setFocus();
	// return;
	// }
	//
	// if(noOfReconnect < 0) {
	// MessageBox mb = new MessageBox(getShell());
	// mb.setText("DataBrowser Error");
	// mb.setMessage("Please enter a valid ( non negative ) value for the number of retry attempts.");
	// mb.open();
	// this.txtNoOfReconnect.setFocus();
	// return;
	// }


	DataBrowserPreferences.setConnectionMRUHListLimit(mru);
	DataBrowserPreferences.setConnectionTimeoutInterval(timeout);
	DataBrowserPreferences.setSocketReadTimeoutInterval(readTimeout);
	// DataBrowserPreferences.setConRetryInterval(reconnectinterval);
	// DataBrowserPreferences.setConRetryAttempts(noOfReconnect);
	}

	@Override
	public boolean performOk() {
	performApply();
	return super.performOk();
	}

	public boolean isValid() {
	String mruStr = txtMru.getText();
	String timeoutStr = txtTimeout.getText();
	String readTimeoutStr = socketReadTimeout.getText();
	// String noOfReconnectStr = txtNoOfReconnect.getText();
	// String reconnectintervalStr = txtReconnectInterval.getText();

	long temp1;
	int temp2;
	long readTimoutLong;

	try {
	temp2 = Integer.valueOf(mruStr);
	}
	catch (NumberFormatException e) {
	temp2 = -1;
	}

	if(temp2 < 0) {
	setErrorMessage("Please enter a valid ( non negative ) value for the number of Locator/JMX Manager entries to keep in the history");
	txtTimeout.setEnabled(false);
	socketReadTimeout.setEnabled(false);
	// txtNoOfReconnect.setEnabled(false);
	// txtReconnectInterval.setEnabled(false);
	return false;
	}

	try {
	temp1 = Long.valueOf(timeoutStr);
	}
	catch (NumberFormatException e) {
	temp1 = -1;
	}

	if(temp1 <= 0) {
	setErrorMessage("Please enter a valid ( greater than zero ) value for the connection timeout interval (in milliseconds).");
	txtMru.setEnabled(false);
	socketReadTimeout.setEnabled(false);
	// txtNoOfReconnect.setEnabled(false);
	// txtReconnectInterval.setEnabled(false);
	return false;
	}

	try {
	readTimoutLong = Long.valueOf(readTimeoutStr);
	}
	catch (NumberFormatException e) {
	readTimoutLong = -1;
	}

	if(readTimoutLong <= 0) {
	setErrorMessage("Please enter a valid ( greater than zero ) numeric value for server response timeout interval (in milliseconds).");
	txtMru.setEnabled(false);
	txtTimeout.setEnabled(false);
	// txtNoOfReconnect.setEnabled(false);
	// txtReconnectInterval.setEnabled(false);
	return false;
	}

	// try {
	// temp2 = Integer.valueOf(noOfReconnectStr);
	// }
	// catch (NumberFormatException e) {
	// temp2 = -1;
	// }
	//
	// if(temp2 < 0) {
	// setErrorMessage("Please enter a valid ( non negative ) value for the number of retry attempts.");
	// txtMru.setEnabled(false);
	// txtTimeout.setEnabled(false);
	// txtReconnectInterval.setEnabled(false);
	// return false;
	// }

	// try {
	// temp1 = Long.valueOf(reconnectintervalStr);
	// }
	// catch (NumberFormatException e) {
	// temp1 = -1;
	// }
	//
	// if(temp1 <= 0) {
	// setErrorMessage("Please enter a valid ( greater than zero ) value for the reconnect interval.");
	// txtTimeout.setEnabled(false);
	// txtNoOfReconnect.setEnabled(false);
	// txtMru.setEnabled(false);
	// return false;
	// }

	setErrorMessage(null);
	txtMru.setEnabled(true);
	txtTimeout.setEnabled(true);
	socketReadTimeout.setEnabled(true);
	// txtNoOfReconnect.setEnabled(true);
	// txtReconnectInterval.setEnabled(true);
	return true;
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.jface.preference.PreferencePage#performDefaults()
	*/
	@Override
	protected void performDefaults() {
	setPreferences(true);
	super.performDefaults();
	}

	private void setPreferences(boolean isDefault){
	String temp1 ;
	String temp2 ;
	String readTimeoutStr ;

	if(isDefault) {
	temp1 = String.valueOf(DefaultPreferences.DEFAULT_MRU_HOST_PORT_LIST_LIMIT);
	temp2 = String.valueOf(DefaultPreferences.DEFAULT_CONNECTION_TIMEOUT);
	readTimeoutStr = String.valueOf(DefaultPreferences.DEFAULT_SOCKET_READ_TIMEOUT);

	} else {
	temp1 = String.valueOf(DataBrowserPreferences.getConnectionMRUHListLimit());
	temp2 = String.valueOf(DataBrowserPreferences.getConnectionTimeoutInterval());
	readTimeoutStr = String.valueOf(DataBrowserPreferences.getSocketReadTimeoutInterval());
	}

	txtMru.setText(temp1);
	txtTimeout.setText(temp2);
	socketReadTimeout.setText(readTimeoutStr);
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.jface.preference.PreferencePage#setTitle(java.lang.String)
	*/
	@Override
	public void setTitle(String title) {
	super.setTitle("Connection Options");
	}

	// ----------------------------------------------------------------------------
	// IDataBrowserPrefsPage methods
	// ----------------------------------------------------------------------------

	public String getID() {
	return "Connection";
	}

	public String getLabel() {
	return "Connection";
	}

	public ImageDescriptor getImageDescriptor() {
	final String fqnImage_ = "/com/gemstone/gemfire/mgmt/DataBrowser/resources/icons/QueryPrefsPageIcon.png";
	InputStream isImage = null;
	try {
	isImage = getClass().getResourceAsStream(fqnImage_);

	if (null != isImage) {
	img_ = new Image(null, isImage);
	imgDesc_ = ImageDescriptor.createFromImage(img_);
	}
	} catch (NullPointerException xptn) {
	// handler for getResourceAsStream
	LogUtil.warning( "NullPointedException in QueryPrefsPage.getImageDescriptor (getResourceAsStream). Continuing...", xptn );
	} catch (SWTException xptn) {
	// handler for org.eclipse.swt.graphics.Image ctor
	// we continue an try to add the other nodes
	LogUtil.warning( "SWTException in QueryPrefsPage.getImageDescriptor (org.eclipse.swt.graphics.Image ctor). Continuing...", xptn );
	} catch (SWTError err) {
	// Log this (Image ctor could throw this), and rethrow
	LogUtil.error( "SWTError in QueryPrefsPage.getImageDescriptor (org.eclipse.swt.graphics.Image ctor). This could be due to handles in the underlying widget kit being exhaused. Terminating.", err );
	throw err;
	}
	finally {
	if( null != isImage ) {
	try {
	isImage.close();
	} catch (IOException e) {
	LogUtil.warning( "IOException in QueryPrefsPage.getImageDescriptor (isImage.close(..)). Ignoring.", e );
	}
	isImage = null;
	}
	}

	return imgDesc_;
	}
	}