/* ************************************************************************* *
* *
* Copyright (c) 2004 Peter Cappello <cappello@cs.ucsb.edu> *
* *
* Permission is hereby granted, free of charge, to any person obtaining *
* a copy of this software and associated documentation files (the *
* "Software"), to deal in the Software without restriction, including *
* without limitation the rights to use, copy, modify, merge, publish, *
* distribute, sublicense, and/or sell copies of the Software, and to *
* permit persons to whom the Software is furnished to do so, subject to *
* the following conditions: *
* *
* The above copyright notice and this permission notice shall be *
* included in all copies or substantial portions of the Software. *
* *
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, *
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY *
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, *
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE *
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
* *
* ************************************************************************* */
/**
* Ping enables a Service to see if another Service is responding to RMI.
* Ping may be enhanced so that responsive Service objects ServiceInfo, or an extension of it.
*
* @author Peter Cappello
*/
package jicosfoundation;
public final class Ping implements CommandSynchronous
{
public Object execute( Proxy proxy, RemoteExceptionHandler remoteExceptionHandler ) { return null; /* this method is unused */ }
public Object execute( ServiceImpl myService )
{
/* propose to create ServiceInfo and return that. It could include both
* static attributes (e.g., processor type) and dynamic attributes
* (e.g., availableMemory).
*/
return null;
}
}