/* $Id: CompositeModelInterpreter.java 17836 2010-01-12 19:06:55Z linus $
 *****************************************************************************
 * Copyright (c) 2009 Contributors - see below
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *    tfmorris
 *****************************************************************************
 *
 * Some portions of this file was previously release using the BSD License:
 */

// Copyright (c) 2008 The Regents of the University of California. All
// Rights Reserved. Permission to use, copy, modify, and distribute this
// software and its documentation without fee, and without a written
// agreement is hereby granted, provided that the above copyright notice
// and this paragraph appear in all copies. This software program and
// documentation are copyrighted by The Regents of the University of
// California. The software program and documentation are supplied "AS
// IS", without any accompanying services from The Regents. The Regents
// does not warrant that the operation of the program will be
// uninterrupted or error-free. The end-user understands that the program
// was developed for research purposes and is advised not to rely
// exclusively on the program for any reason. IN NO EVENT SHALL THE
// UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,
// SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS,
// ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF
// THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF
// SUCH DAMAGE. THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY
// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE
// PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND THE UNIVERSITY OF
// CALIFORNIA HAS NO OBLIGATIONS TO PROVIDE MAINTENANCE, SUPPORT,
// UPDATES, ENHANCEMENTS, OR MODIFICATIONS.

package org.argouml.profile.internal.ocl;

import java.util.HashSet;
import java.util.Map;
import java.util.Set;

/**
 * Represents a composite ModelInterpreter
 * 
 * @author maurelio1234
 */
public class CompositeModelInterpreter implements ModelInterpreter {

    private Set<ModelInterpreter> set = new HashSet<ModelInterpreter>();

    /**
     * Adds a ModelInterpreter to this set
     * 
     * @param mi the model interpreter
     */
    public void addModelInterpreter(ModelInterpreter mi) {
        set.add(mi);
    }

    /*
     * @see org.argouml.profile.internal.ocl.ModelInterpreter#invokeFeature(java.util.HashMap,
     *      java.lang.Object, java.lang.String, java.lang.String,
     *      java.lang.Object[])
     */
    public Object invokeFeature(Map<String, Object> vt, Object subject,
            String feature, String type, Object[] parameters) {
        for (ModelInterpreter mi : set) {
            Object ret = mi.invokeFeature(vt, subject, feature, type,
                    parameters);
            if (ret != null) {
                return ret;
            }
        }
        return null;
    }

    /*
     * @see org.argouml.profile.internal.ocl.ModelInterpreter#getBuiltInSymbol(java.lang.String)
     */
    public Object getBuiltInSymbol(String sym) {
        for (ModelInterpreter mi : set) {
            Object ret = mi.getBuiltInSymbol(sym);
            if (ret != null) {
                return ret;
            }
        }
        return null;
    }

}