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package org.openoffice.accessibility.misc;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.PrintStream;
import java.util.Timer;
import java.util.TimerTask;
import java.util.Vector;
import com.sun.star.uno.UnoRuntime;
import com.sun.star.bridge.XUnoUrlResolver;
import com.sun.star.lang.XMultiServiceFactory;
import com.sun.star.comp.helper.Bootstrap;
/** This class establishes a connection to a StarOffice application.
*/
public class OfficeConnection
extends TimerTask
{
final public static long snDelay = 3000;
public static synchronized OfficeConnection Instance ()
{
if (saInstance == null)
saInstance = new OfficeConnection ();
return saInstance;
}
static public void SetPipeName (String sPipeName)
{
ssDefaultPipeName = sPipeName;
}
public void AddConnectionListener (ActionListener aListener)
{
SimpleOffice aOffice = SimpleOffice.Instance();
if (IsValid())
aListener.actionPerformed (
new ActionEvent (aOffice,0,"<connected>"));
maListeners.add (aListener);
}
/** @descr Return the service manager that represents the connected
StarOffice application
*/
public XMultiServiceFactory GetServiceManager ()
{
return maServiceManager;
}
/** Return a flag that indicates if the constructor has been able to
establish a valid connection.
*/
public boolean IsValid ()
{
return (maServiceManager != null);
}
/** Connect to a already running StarOffice application that has
been started with a command line argument like
"-accept=pipe,name=<username>;urp;"
*/
private boolean Connect ()
{
mbInitialized = true;
// Set up connection string.
String sConnectString = "uno:pipe,name=" + msPipeName
+ ";urp;StarOffice.ServiceManager";
// connect to a running office and get the ServiceManager
try
{
// Create a URL Resolver.
XMultiServiceFactory aLocalServiceManager =
Bootstrap.createSimpleServiceManager();
XUnoUrlResolver aURLResolver =
(XUnoUrlResolver) UnoRuntime.queryInterface (
XUnoUrlResolver.class,
aLocalServiceManager.createInstance (
"com.sun.star.bridge.UnoUrlResolver")
);
maServiceManager =
(XMultiServiceFactory) UnoRuntime.queryInterface (
XMultiServiceFactory.class,
aURLResolver.resolve (sConnectString)
);
}
catch (Exception e)
{
if (maOut != null)
{
maOut.println ("Could not connect with "
+ sConnectString + " : " + e);
maOut.println ("Please start OpenOffice/StarOffice with "
+ "\"-accept=pipe,name=" + msPipeName + ";urp;\"");
}
}
return maServiceManager != null;
}
public void run ()
{
if ( ! IsValid())
{
MessageArea.println ("trying to connect");
if (Connect())
{
// Stop the timer.
cancel ();
ActionEvent aEvent = new ActionEvent (this,0,"<connected>");
for (int i=0; i<maListeners.size(); i++)
((ActionListener)maListeners.elementAt(i)).actionPerformed(aEvent);
}
}
}
private OfficeConnection ()
{
this (null);
}
private OfficeConnection (PrintStream aOut)
{
msPipeName = ssDefaultPipeName;
maOut = aOut;
maListeners = new Vector();
maServiceManager = null;
maTimer = new Timer (true);
maTimer.schedule (this, 0, snDelay);
}
private static OfficeConnection saInstance = null;
private static String ssDefaultPipeName = System.getenv( "USER" );
private XMultiServiceFactory maServiceManager;
String msPipeName;
/** A value of true just indicates that it has been tried to establish a connection,
not that that has been successfull.
*/
private boolean mbInitialized = false;
/// Stream used to print messages.
private PrintStream maOut;
private Timer maTimer;
private Vector maListeners;
}
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