Examples of Watchdog

com.ecyrd.jspwiki.util.WatchDog
WatchDog is a general system watchdog. You can attach any Watchable or a Thread object to it, and it will notify you if a timeout has been exceeded.
The notification of the timeouts is done from a separate WatchDog thread, of which there is one per watched thread. This Thread is named 'WatchDog for XXX', where XXX is your Thread name.
The suggested method of obtaining a WatchDog is via the static factory method, since it will return you the correct watchdog for the current thread. However, we do not prevent you from creating your own watchdogs either.
If you create a WatchDog for a Thread, the WatchDog will figure out when the Thread is dead, and will stop itself accordingly. However, this object is not automatically released, so you might want to check it out after a while. @since 2.4.92
jetbrains.communicator.util.WatchDog
@author Kir
org.apache.james.util.watchdog.Watchdog
This interface represents an abstract watchdog process that serves to monitor a situation and triggers an action under an implementation-specific trigger condition. @author Andrei Ivanov @author Peter M. Goldstein
org.apache.ode.utils.WatchDog
This class is based on {@link org.apache.log4j.helpers.FileWatchdog}.
Modifications have been made to support additional abstract ressource and more events (creation, deletion and updates), and to allow "manual" invocations of {@link #check()} (i.e wihtout having to use a thread) while preserving time checking.
Now two use cases coexist:
1. Pass an instance of {@link WatchDog} to a new thread ({@link WatchDog} is a {@link Runnable}). So that {@link WatchDog#check()} will be called automatically every {@code delay} milliseconds.
2. Invoke {@link WatchDog#check()} only when you feel like it. If the expiration date previously set is lower than NOW then eventcallback methods will be invoked accordingly.
@author Alexis Midon
org.apache.tools.ant.util.Watchdog
Generalization of ExecuteWatchdog @since Ant 1.5 @see org.apache.tools.ant.taskdefs.ExecuteWatchdog @author Stefan Bodewig @author thomas.haas@softwired-inc.com @author Stephane Bailliez
org.apache.wiki.WatchDog
WatchDog is a general system watchdog. You can attach any Watchable or a Thread object to it, and it will notify you if a timeout has been exceeded.
The notification of the timeouts is done from a separate WatchDog thread, of which there is one per watched thread. This Thread is named 'WatchDog for XXX', where XXX is your Thread name.
The suggested method of obtaining a WatchDog is via the static factory method, since it will return you the correct watchdog for the current thread. However, we do not prevent you from creating your own watchdogs either.
If you create a WatchDog for a Thread, the WatchDog will figure out when the Thread is dead, and will stop itself accordingly. However, this object is not automatically released, so you might want to check it out after a while. @since 2.4.92
org.apache.wiki.util.WatchDog
WatchDog is a general system watchdog. You can attach any Watchable or a Thread object to it, and it will notify you if a timeout has been exceeded.
The notification of the timeouts is done from a separate WatchDog thread, of which there is one per watched thread. This Thread is named 'WatchDog for XXX', where XXX is your Thread name.
The suggested method of obtaining a WatchDog is via the static factory method, since it will return you the correct watchdog for the current thread. However, we do not prevent you from creating your own watchdogs either.
If you create a WatchDog for a Thread, the WatchDog will figure out when the Thread is dead, and will stop itself accordingly. However, this object is not automatically released, so you might want to check it out after a while. @since 2.4.92
zephyropen.device.WatchDog
Spin locked thread to ensure the connection to the device is active

Examples of org.apache.wiki.util.WatchDog

    public void doFilter( ServletRequest  request,
                          ServletResponse response,
                          FilterChain     chain )
        throws ServletException, IOException
    {
        WatchDog w = m_engine.getCurrentWatchDog();
        try
        {
            NDC.push( m_engine.getApplicationName()+":"+((HttpServletRequest)request).getRequestURI() );


            w.enterState("Filtering for URL "+((HttpServletRequest)request).getRequestURI(), 90 );
            HttpServletResponseWrapper responseWrapper;
         
            if( m_useOutputStream )
            {
                log.debug( "Using ByteArrayResponseWrapper" );
                responseWrapper = new ByteArrayResponseWrapper( (HttpServletResponse)response );
            }
            else
            {
                log.debug( "Using MyServletResponseWrapper" );
                responseWrapper = new MyServletResponseWrapper( (HttpServletResponse)response );
                
            }
        
            // fire PAGE_REQUESTED event
            String pagename = DefaultURLConstructor.parsePageFromURL(
                    (HttpServletRequest)request, response.getCharacterEncoding() );
            fireEvent( WikiPageEvent.PAGE_REQUESTED, pagename );


            super.doFilter( request, responseWrapper, chain );


            // The response is now complete. Lets replace the markers now.
        
            // WikiContext is only available after doFilter! (That is after
            //   interpreting the jsp)


            try
            {
                w.enterState( "Delivering response", 30 );
                WikiContext wikiContext = getWikiContext( request );
                String r = filter( wikiContext, responseWrapper );
        
                //String encoding = "UTF-8";
                //if( wikiContext != null ) encoding = wikiContext.getEngine().getContentEncoding();
        
                // Only now write the (real) response to the client.
                // response.setContentLength(r.length());
                // response.setContentType(encoding);
                
                response.getWriter().write(r);
            
                // Clean up the UI messages and loggers
                if( wikiContext != null )
                {
                    wikiContext.getWikiSession().clearMessages();
                }


                // fire PAGE_DELIVERED event
                fireEvent( WikiPageEvent.PAGE_DELIVERED, pagename );


            }
            finally
            {
                w.exitState();
            }
        }
        finally
        {
            w.exitState();
            NDC.pop();
            NDC.remove();
        }
    }

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Examples of zephyropen.device.WatchDog


    /** sanity test if (!connected) return; */
    ZephyrUtils.setupBioharness(port);
    ZephyrUtils.setupBioharnessRtoR(port);


      new WatchDog(this).start();    
    
    short i = 0;
    while (getDelta() < ZephyrOpen.TIME_OUT) {


      Utils.delay(200);

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