001/*
002 * Copyright (c) 1998-2010 The Regents of the University of California.
003 * All rights reserved.
004 *
005 * '$Author: welker $'
006 * '$Date: 2010-05-06 05:21:26 +0000 (Thu, 06 May 2010) $' 
007 * '$Revision: 24234 $'
008 * 
009 * Permission is hereby granted, without written agreement and without
010 * license or royalty fees, to use, copy, modify, and distribute this
011 * software and its documentation for any purpose, provided that the above
012 * copyright notice and the following two paragraphs appear in all copies
013 * of this software.
014 *
015 * IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY
016 * FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
017 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF
018 * THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF
019 * SUCH DAMAGE.
020 *
021 * THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
022 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
023 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE
024 * PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND THE UNIVERSITY OF
025 * CALIFORNIA HAS NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES,
026 * ENHANCEMENTS, OR MODIFICATIONS.
027 *
028 */
029
030package org.geon;
031
032import ptolemy.actor.TypedAtomicActor;
033import ptolemy.actor.TypedIOPort;
034import ptolemy.data.StringToken;
035import ptolemy.data.expr.Parameter;
036import ptolemy.data.type.BaseType;
037import ptolemy.kernel.CompositeEntity;
038import ptolemy.kernel.util.IllegalActionException;
039import ptolemy.kernel.util.NameDuplicationException;
040
041//////////////////////////////////////////////////////////////////////////
042//// InvokeClass
043/**
044 * Invoking the service model
045 * 
046 * @author Efrat Jaeger
047 * @version $Id: InvokeService.java 24234 2010-05-06 05:21:26Z welker $
048 * @since Ptolemy II 3.0.2
049 */
050
051public class InvokeService extends TypedAtomicActor {
052
053        /**
054         * Construct an actor with the given container and name.
055         * 
056         * @param container
057         *            The container.
058         * @param name
059         *            The name of this actor.
060         * @exception IllegalActionException
061         *                If the actor cannot be contained by the proposed
062         *                container.
063         * @exception NameDuplicationException
064         *                If the container already has an actor with this name.
065         */
066        public InvokeService(CompositeEntity container, String name)
067                        throws NameDuplicationException, IllegalActionException {
068                super(container, name);
069                input = new TypedIOPort(this, "input", true, false);
070                input.setTypeEquals(BaseType.STRING);
071                value = new Parameter(this, "value");
072                output = new TypedIOPort(this, "output", false, true);
073                output.setTypeEquals(BaseType.STRING);
074        }
075
076        Parameter value;
077        TypedIOPort input;
078        TypedIOPort output;
079
080        // /////////////////////////////////////////////////////////////////
081        // // public methods ////
082
083        /**
084         * Set postfire to false.
085         * 
086         * @exception IllegalActionException
087         *                If thrown by the super class.
088         */
089        public boolean postfire() throws IllegalActionException {
090
091                String xml = ((StringToken) input.get(0)).stringValue();
092                String modelURL = ((StringToken) value.getToken()).stringValue();
093                ModelService ms = new ModelService();
094                try {
095                        String res = ms.execute(modelURL, xml);
096                        output.broadcast(new StringToken(res));
097                } catch (Exception ex) {
098                        ex.printStackTrace();
099                }
100                return false;
101        }
102}