/Users/nah/Documents/code/cast/src/java/comedyarch/Director.java

Go to the documentation of this file.

/*
 * Comedian example code to demonstrate CAST functionality.
 *
 * Copyright (C) 2006-2007 Nick Hawes
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301 USA
 *
 */

package comedyarch;

import java.util.Map;

import cast.AlreadyExistsOnWMException;
import cast.DoesNotExistOnWMException;
import cast.PermissionException;
import cast.SubarchitectureComponentException;
import cast.UnknownSubarchitectureException;
import cast.architecture.ChangeFilterFactory;
import cast.architecture.ManagedComponent;
import cast.architecture.WorkingMemoryChangeReceiver;
import cast.cdl.WorkingMemoryAddress;
import cast.cdl.WorkingMemoryChange;
import cast.cdl.WorkingMemoryOperation;

import comedyarch.autogen.DirectorAction;
import comedyarch.autogen.DirectorActionType;
import comedyarch.autogen.TwoLiner;
import comedyarch.autogen.Reaction;

public class Director extends ManagedComponent {

//      private boolean m_testing;
        private String m_audienceSA;

        /*
         * (non-Javadoc)
         * 
         * @see cast.architecture.abstr.WorkingMemoryReaderProcess#start()
         */
        @Override
        public void start() {
                addChangeFilter(ChangeFilterFactory.createLocalTypeFilter(
                                DirectorAction.class, WorkingMemoryOperation.ADD),
                                new WorkingMemoryChangeReceiver() {

                                        public void workingMemoryChanged(WorkingMemoryChange _wmc) {
                                                // log(CASTUtils.toString(_wmc));
                                                takeAction(_wmc);
                                        }
                                });
        }

        private void takeAction(WorkingMemoryChange _actionChange) {
                // get the action from wm
                try {
                        DirectorAction action = getMemoryEntry(_actionChange.address,
                                        DirectorAction.class);
                        switch (action.action) {
                        case AskTheAudience:
                                askTheAudience(action.address);
                                break;
                        case CheckTheReaction:
                                checkTheReaction(action.address);
                                break;
                        default:
                                log("Unknown action type");
                                break;
                        }

                        // // now delete the action itself from our sa wm
                        // debug("deleting action at: " + CASTUtils.toString(_wma));
                        deleteFromWorkingMemory(_actionChange.address);
                } catch (SubarchitectureComponentException e) {
                        e.printStackTrace();
                }
        }

        private void checkTheReaction(WorkingMemoryAddress _reactionAddress)
                        throws DoesNotExistOnWMException, PermissionException, UnknownSubarchitectureException {

                // get the finished masterpiece
                String reaction = getMemoryEntry(_reactionAddress, Reaction.class).react;

                println("and the audience says...");
                println(reaction);

                // and erase it from the memory of the poor jokers
                deleteFromWorkingMemory(_reactionAddress);

                // if(m_testing) {
                // if(reaction.equals("YAY!")) {
                // System.exit(CAST_TEST_PASS.value);
                // }
                // else {
                // System.exit(CAST_TEST_FAIL.value);
                // }
                // }
        }

        private void askTheAudience(WorkingMemoryAddress _jokeAddress)
                        throws DoesNotExistOnWMException, PermissionException,
                        AlreadyExistsOnWMException, UnknownSubarchitectureException {

                // assert(existsOnWorkingMemory(_jokeAddress));

                println("someone told a joke! ");

                // get the finished masterpiece
                TwoLiner joke = getMemoryEntry(_jokeAddress, TwoLiner.class);

                println("let's see what the audience thinks of...");
                println("Q: " + joke.setup);
                println("A: " + joke.punchline);

                // write it to the audience subarchitecture
                addToWorkingMemory(newDataID(), m_audienceSA, joke);

                // and erase it from the memory of the poor jokers
                deleteFromWorkingMemory(_jokeAddress);
        }

        @Override
        public void configure(Map<String, String> _config) {
                String asa = _config.get("--audience");
                if (asa != null) {
                        m_audienceSA = asa;
                } else {
                        throw new RuntimeException(
                                        "Missing --audience parameter for audience subarch address");
                }
        }

}

---