Device.java

package edu.stanford.hci.r3.devices;

import java.io.File;
import java.net.InetAddress;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.UnknownHostException;

import edu.stanford.hci.r3.actions.R3Action;
import edu.stanford.hci.r3.actions.remote.ActionReceiver;
import edu.stanford.hci.r3.actions.remote.ActionSender;
import edu.stanford.hci.r3.actions.types.OpenFileAction;
import edu.stanford.hci.r3.actions.types.OpenURLAction;
import edu.stanford.hci.r3.actions.types.PlaySoundAction;
import edu.stanford.hci.r3.actions.types.TextToSpeechAction;
import edu.stanford.hci.r3.devices.channels.ActionChannel;
import edu.stanford.hci.r3.devices.channels.AudioChannel;
import edu.stanford.hci.r3.devices.channels.DisplayChannel;
import edu.stanford.hci.r3.util.DebugUtils;
import edu.stanford.hci.r3.util.networking.ClientServerType;

public class Device {

        // ////////////////////////////////////////////////////////////////////////////////////////
        // The series of doXXX methods are convenience methods for the application to execute local
        // actions from the actions.* package. When called, they implicitly ask the local device
        // to invoke Actions.
        // ////////////////////////////////////////////////////////////////////////////////////////

        // private static LinkedList<PlaySoundAction> queuedSounds = new LinkedList<PlaySoundAction>();
        //

        // public static PlaySoundAction doPlaySound(File soundFile) {
        // final PlaySoundAction playSoundAction = new PlaySoundAction(soundFile);
        // playSoundAction.addStopListener(new PlaySoundAction.PlaySoundListener() {
        // public void soundStopped() {
        // queuedSounds.remove(playSoundAction); // remove myself
        // if (queuedSounds.size() > 0) {
        // // if there are any left... play the next guy
        // queuedSounds.getFirst().invoke();
        // }
        // }
        // });
        // queuedSounds.addLast(playSoundAction);
        // if (queuedSounds.size() == 1) {
        // playSoundAction.invoke();
        // }
        //
        // return playSoundAction;
        // }

        private static PlaySoundAction playSoundAction;

        public static PlaySoundAction doPlaySound(File soundFile) {
                if (playSoundAction != null) {
                        playSoundAction.stop();
                }
                playSoundAction = new PlaySoundAction(soundFile);
                playSoundAction.invoke();
                return playSoundAction;
        }

        private ActionChannel actionChannel;

        private AudioChannel audioChannel;

        private DisplayChannel displayChannel;

        private String hostNameOrIPAddr;

        private String name;

        private ActionSender sender;

        public Device(String theHostNameOrIPAddr, String descriptiveName) {
                hostNameOrIPAddr = theHostNameOrIPAddr;
                name = descriptiveName;
        }

        public void connect() {
                sender = new ActionSender(hostNameOrIPAddr, ActionReceiver.DEFAULT_JAVA_PORT,
                                ClientServerType.JAVA);
        }

        public void disconnect() {
                sender.disconnect();
                sender = null;
        }

        public ActionChannel getActionChannel() {
                if (actionChannel == null) {
                        actionChannel = new ActionChannel(this);
                }
                return actionChannel;
        }

        public AudioChannel getAudioChannel() {
                if (audioChannel == null) {
                        audioChannel = new AudioChannel(this);
                }
                return audioChannel;
        }

        public DisplayChannel getDisplayChannel() {
                if (displayChannel == null) {
                        displayChannel = new DisplayChannel(this);
                }
                return displayChannel;
        }

        public String getName() {
                return name;
        }

        public void invokeAction(R3Action action) {
                if (sender != null) {
                        sender.invokeRemoteAction(action);
                } else {
                        DebugUtils.println("Sender is null.");
                }
        }

        public boolean isAlive() {
                try {
                        DebugUtils.println("Checking if Device is Alive and Reachable...");
                        final InetAddress address = InetAddress.getByName(hostNameOrIPAddr);
                        DebugUtils.println("Device Hostname: " + address.getHostName());
                        DebugUtils.println("Device Address: " + address.getHostAddress());
                        return true;
                } catch (UnknownHostException e) {
                        DebugUtils.println(e);
                }
                return false;
        }

        public static void doSpeakText(String textToSpeak) {
                TextToSpeechAction.getInstance().speak(textToSpeak);
        }

        public static void doOpenURL(String urlString) {
                try {
                        final URL u = new URL(urlString);
                        new OpenURLAction(u).invoke();
                } catch (MalformedURLException e) {
                        e.printStackTrace();
                }
        }

        public static OpenFileAction doOpenFile(File file) {
                final OpenFileAction ofa = new OpenFileAction(file);
                ofa.invoke();
                return ofa;
        }
}

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