/*
 * Copyright (c) 2011 Stiftung Deutsches Elektronen-Synchrotron,
 * 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
 *
 * $Id: DesyKrykCodeTemplates.xml,v 1.7 2010/04/20 11:43:22 bknerr Exp $
 */
package org.csstudio.sds.internal.rules;

import java.util.HashMap;

import org.csstudio.sds.model.IRule;

/**
 * TODO (hrickens) : 
 * 
 * @author hrickens
 * @author $Author: hrickens $
 * @version $Revision: 1.7 $
 * @since 19.05.2011
 */
public class AliasRule implements IRule {
    
    /**
     * {@inheritDoc}
     */
    @Override
    public Object evaluate(Object[] arguments) {
        HashMap<String, String>  aliasMap = new HashMap<String, String>();
        if(arguments.length>0) {
            Object object = arguments[0];
            if(object instanceof String) {
                String channel = (String) object;
                channel = channel.split("[ .\\[]")[0];
                aliasMap.put("channel", channel);
            }
        }
        return aliasMap;
    }
    
    /**
     * {@inheritDoc}
     */
    @Override
    public String getDescription() {
        return "S�ubert eine String das nur der Channel �brig bleibt. Der channel wird dem Alias $channel$ zugewiesen." +
        		"\nDer Channel mu� an erster Stelle stehen. Getrennt wird durch ' ','.','['";
    }
    
}