001    /******************************************************************************
002     * Copyright (C) MActor Developers. All rights reserved.                        *
003     * ---------------------------------------------------------------------------*
004     * This file is part of MActor.                                               *
005     *                                                                            *
006     * MActor is free software; you can redistribute it and/or modify             *
007     * it under the terms of the GNU General Public License as published by       *
008     * the Free Software Foundation; either version 2 of the License, or          *
009     * (at your option) any later version.                                        *
010     *                                                                            *
011     * MActor is distributed in the hope that it will be useful,                  *
012     * but WITHOUT ANY WARRANTY; without even the implied warranty of             *
013     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the              *
014     * GNU General Public License for more details.                               *
015     *                                                                            *
016     * You should have received a copy of the GNU General Public License          *
017     * along with MActor; if not, write to the Free Software                      *
018     * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA *
019     ******************************************************************************/
020    package org.mactor.framework.commandexecutors.java;
021    
022    import java.util.List;
023    
024    import org.mactor.brokers.Message;
025    import org.mactor.framework.MactorException;
026    import org.mactor.framework.ReflectionUtil;
027    import org.mactor.framework.commandexecutors.MessageSelectorCommandExecutor;
028    import org.mactor.framework.extensioninterface.MessageSelectorCommand;
029    
030    public class JavaMessageSelectorCommandExecutor implements MessageSelectorCommandExecutor {
031            private List<String> params;
032            private String command;
033            public JavaMessageSelectorCommandExecutor(String command, List<String> params) {
034                    this.command = command;
035                    this.params = params;
036            }
037            public void setParams(List<String> params) throws MactorException {
038                    // ignore
039            }
040            private MessageSelectorCommand getCommandImpl() throws MactorException {
041                    Object c = ReflectionUtil.createInstance(this.command);
042                    if (!(c instanceof MessageSelectorCommand))
043                            throw new MactorException("The command '" + command + "' does not implement the required interface '" + MessageSelectorCommand.class.getName() + "'");
044                    return (MessageSelectorCommand) c;
045            }
046            public boolean isAcceptableMessage(Message message) throws MactorException {
047                    MessageSelectorCommand sc = getCommandImpl();
048                    sc.setParams(params);
049                    return sc.isAcceptableMessage(message);
050            }
051    }