/*
* Copyright (c) 2006 Stiftung Deutsches Elektronen-Synchroton,
* Member of the Helmholtz Association, (DESY), HAMBURG, GERMANY.
*
* THIS SOFTWARE IS PROVIDED UNDER THIS LICENSE ON AN "../AS IS" BASIS.
* WITHOUT WARRANTY OF ANY KIND, EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED
* TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR PARTICULAR PURPOSE AND
* NON-INFRINGEMENT. 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. SHOULD THE SOFTWARE PROVE DEFECTIVE
* IN ANY RESPECT, THE USER ASSUMES THE COST OF ANY NECESSARY SERVICING, REPAIR OR
* CORRECTION. THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS LICENSE.
* NO USE OF ANY SOFTWARE IS AUTHORIZED HEREUNDER EXCEPT UNDER THIS DISCLAIMER.
* DESY HAS NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS,
* OR MODIFICATIONS.
* THE FULL LICENSE SPECIFYING FOR THE SOFTWARE THE REDISTRIBUTION, MODIFICATION,
* USAGE AND OTHER RIGHTS AND OBLIGATIONS IS INCLUDED WITH THE DISTRIBUTION OF THIS
* PROJECT IN THE FILE LICENSE.HTML. IF THE LICENSE IS NOT INCLUDED YOU MAY FIND A COPY
* AT HTTP://WWW.DESY.DE/LEGAL/LICENSE.HTM
*/
package org.csstudio.sds.internal.rules;
import java.text.SimpleDateFormat;
import java.util.Date;
import org.csstudio.sds.model.IRule;
/**
* Simple system time rule.
*
* @author Alexander Will
* @version $Revision: 1.2 $
*
*/
public final class SystemTimeRule implements IRule {
/**
* Used date format.
*/
private final SimpleDateFormat _dateFormat = new SimpleDateFormat("HH:mm:ss:SSS"); //$NON-NLS-1$
/**
* {@inheritDoc}
*/
@Override
public Object evaluate(final Object[] arguments) {
if ((arguments != null) && (arguments.length > 0)
&& (arguments[0] instanceof Number)) {
Number number = (Number) arguments[0];
return _dateFormat.format(new Date(number.longValue()));
}
return "Invalid TIME"; //$NON-NLS-1$
}
/**
* {@inheritDoc}
*/
@Override
public String getDescription() {
return "";
}
}