fr.esrf.TangoDs.QueryDeviceCmd Maven / Gradle / Ivy

//+======================================================================
// $Source$
//
// Project:   Tango
//
// Description:  java source code for the TANGO client/server API.
//
// $Author: pascal_verdier $
//
// Copyright (C) :      2004,2005,2006,2007,2008,2009,2010,2011,2012,2013,2014,
//						European Synchrotron Radiation Facility
//                      BP 220, Grenoble 38043
//                      FRANCE
//
// This file is part of Tango.
//
// Tango is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// 
// Tango is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Lesser General Public License for more details.
// 
// You should have received a copy of the GNU Lesser General Public License
// along with Tango.  If not, see .
//
// $Revision: 25297 $
//
//-======================================================================


package fr.esrf.TangoDs;

import fr.esrf.Tango.DevFailed;
import fr.esrf.Tango.DevVarStringArrayHelper;
import org.omg.CORBA.Any;

 
public class QueryDeviceCmd extends Command implements TangoConst
{

//+-------------------------------------------------------------------------
//
// method : 		QueryDeviceCmd 
// 
// description : 	constructor for Command class QueryDevice
//
//--------------------------------------------------------------------------
 
	public QueryDeviceCmd(String name,int in,int out,String desc)
	{
		super(name,in,out);
		set_out_type_desc(desc);
	}

//+-------------------------------------------------------------------------
//
// method : 		execute 
// 
// description : 	return all devices served by the server in an array
//			of string
//
//--------------------------------------------------------------------------
 
	public Any execute(DeviceImpl device,Any in_any) throws DevFailed
	{
		Util.out4.println("QueryDeviceCmd.execute(): arrived");

//	
// call DServer method which implements this command
//

		String[] ret = ((DServer)(device)).query_device();

//
// return data to the caller
//

		Any out_any = null;
		//noinspection ErrorNotRethrown
		try
		{
			out_any = Util.instance().get_orb().create_any();
		}
		catch (OutOfMemoryError ex)
		{
			Util.out3.println("Bad allocation while in QueryDeviceCmd::execute()");
			Except.throw_exception("API_MemoryAllocation",
						   "Can't allocate memory in server",
						   "QueryDeviceCmd.execute");
		}
		DevVarStringArrayHelper.insert(out_any,ret);
	
		Util.out4.println("Leaving QueryDeviceCmd.execute()");	
		return	out_any;
	}
}