added disturber mote:

mote that periodically transmits packet that interferes with surrounding radio traffic

tools/cooja/config/cooja_default.config

@@ -29,7 +29,7 @@ se.sics.cooja.contikimote.interfaces.ContikiCFS.CONSUMPTION_PER_READ_CHAR_mQ = 1
 
 se.sics.cooja.contikimote.ContikiMoteType.MOTE_INTERFACES = se.sics.cooja.interfaces.Position se.sics.cooja.interfaces.Battery se.sics.cooja.contikimote.interfaces.ContikiVib se.sics.cooja.contikimote.interfaces.ContikiMoteID se.sics.cooja.contikimote.interfaces.ContikiRS232 se.sics.cooja.contikimote.interfaces.ContikiBeeper se.sics.cooja.contikimote.interfaces.ContikiIPAddress se.sics.cooja.contikimote.interfaces.ContikiRadio se.sics.cooja.contikimote.interfaces.ContikiButton se.sics.cooja.contikimote.interfaces.ContikiPIR se.sics.cooja.contikimote.interfaces.ContikiClock se.sics.cooja.contikimote.interfaces.ContikiLED se.sics.cooja.contikimote.interfaces.ContikiLog se.sics.cooja.contikimote.interfaces.ContikiCFS
 se.sics.cooja.contikimote.ContikiMoteType.C_SOURCES =
-se.sics.cooja.GUI.MOTETYPES = se.sics.cooja.contikimote.ContikiMoteType se.sics.cooja.motes.DummyMoteType se.sics.cooja.mantismote.MantisMoteType
+se.sics.cooja.GUI.MOTETYPES = se.sics.cooja.contikimote.ContikiMoteType se.sics.cooja.motes.DummyMoteType se.sics.cooja.mantismote.MantisMoteType se.sics.cooja.motes.DisturberMoteType
 se.sics.cooja.GUI.PLUGINS = se.sics.cooja.plugins.VisState se.sics.cooja.plugins.VisBattery se.sics.cooja.plugins.VisTraffic se.sics.cooja.plugins.LogListener se.sics.cooja.plugins.MoteInformation se.sics.cooja.plugins.MoteInterfaceViewer se.sics.cooja.plugins.VariableWatcher
 se.sics.cooja.GUI.IP_DISTRIBUTORS = se.sics.cooja.ipdistributors.RandomIPDistributor se.sics.cooja.ipdistributors.SpatialIPDistributor se.sics.cooja.ipdistributors.IdIPDistributor
 se.sics.cooja.GUI.POSITIONERS = se.sics.cooja.positioners.RandomPositioner se.sics.cooja.positioners.LinearPositioner se.sics.cooja.positioners.EllipsePositioner

tools/cooja/java/se/sics/cooja/motes/DisturberMote.java

@@ -0,0 +1,235 @@
+/*
+ * Copyright (c) 2006, Swedish Institute of Computer Science. All rights
+ * reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer. 2. Redistributions in
+ * binary form must reproduce the above copyright notice, this list of
+ * conditions and the following disclaimer in the documentation and/or other
+ * materials provided with the distribution. 3. Neither the name of the
+ * Institute nor the names of its contributors may be used to endorse or promote
+ * products derived from this software without specific prior written
+ * permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * 
+ * $Id: DisturberMote.java,v 1.1 2006/12/07 14:25:22 fros4943 Exp $
+ */
+
+package se.sics.cooja.motes;
+
+import java.util.*;
+
+import org.apache.log4j.Logger;
+import org.jdom.Element;
+
+import se.sics.cooja.*;
+import se.sics.cooja.interfaces.Position;
+import se.sics.cooja.motes.DisturberRadio;
+
+/**
+ * A disturber mote is a purely Java-based mote. It is used to disturb
+ * transmission of other nodes on a certain channel (currently this is
+ * hard-coded in the DisturberRadio.
+ * 
+ * @author Fredrik Osterlind, Thiemo Voigt
+ */
+public class DisturberMote implements Mote {
+
+  private static Logger logger = Logger.getLogger(DisturberMote.class);
+
+  private MoteType myType = null;
+
+  private SectionMoteMemory myMemory = null;
+
+  private MoteInterfaceHandler myInterfaceHandler = null;
+
+  private Simulation mySim = null;
+
+  private Random myRandom = new Random();
+
+  private DisturberRadio myDisturberRadio;
+
+  /**
+   * Creates a new uninitialized dummy mote.
+   */
+  public DisturberMote() {
+  }
+
+  /**
+   * Creates a new dummy mote of the given type in the given simulation. An
+   * empty mote memory and a position interface is added to this mote.
+   * 
+   * @param moteType
+   *          Mote type
+   * @param sim
+   *          Simulation
+   */
+  public DisturberMote(MoteType moteType, Simulation sim) {
+    mySim = sim;
+    myType = moteType;
+
+    // Create memory
+    myMemory = new SectionMoteMemory(new Properties());
+
+    // Create interface handler
+    myInterfaceHandler = new MoteInterfaceHandler();
+    Position myPosition = new Position(this);
+    myPosition.setCoordinates(myRandom.nextDouble() * 100, myRandom
+        .nextDouble() * 100, myRandom.nextDouble() * 100);
+    myInterfaceHandler.addPassiveInterface(myPosition);
+
+    // create interface handler for radio
+    myDisturberRadio = new DisturberRadio(this);
+    myInterfaceHandler.addActiveInterface(myDisturberRadio);
+  }
+
+  public void setState(State newState) {
+    logger.fatal("Disturber mote can not change state");
+  }
+
+  public State getState() {
+    return Mote.State.ACTIVE;
+  }
+
+  public void addStateObserver(Observer newObserver) {
+  }
+
+  public void deleteStateObserver(Observer newObserver) {
+  }
+
+  public MoteInterfaceHandler getInterfaces() {
+    return myInterfaceHandler;
+  }
+
+  public void setInterfaces(MoteInterfaceHandler moteInterfaceHandler) {
+    myInterfaceHandler = moteInterfaceHandler;
+  }
+
+  public MoteMemory getMemory() {
+    return myMemory;
+  }
+
+  public void setMemory(MoteMemory memory) {
+    myMemory = (SectionMoteMemory) memory;
+  }
+
+  public MoteType getType() {
+    return myType;
+  }
+
+  public void setType(MoteType type) {
+    myType = type;
+  }
+
+  public Simulation getSimulation() {
+    return mySim;
+  }
+
+  public void setSimulation(Simulation simulation) {
+    this.mySim = simulation;
+  }
+
+  public void tick(int simTime) {
+    myInterfaceHandler.doPassiveActionsBeforeTick();
+    myInterfaceHandler.doActiveActionsBeforeTick();
+    myInterfaceHandler.doActiveActionsAfterTick();
+    myInterfaceHandler.doPassiveActionsAfterTick();
+  }
+
+  public Collection<Element> getConfigXML() {
+    Vector<Element> config = new Vector<Element>();
+
+    Element element;
+
+    // We need to save the mote type identifier
+    element = new Element("motetype_identifier");
+    element.setText(getType().getIdentifier());
+    config.add(element);
+
+    // The position interface should also save its config
+    element = new Element("interface_config");
+    element.setText(myInterfaceHandler.getPosition().getClass().getName());
+
+    // Active interface configs (if any)
+    for (MoteInterface moteInterface: getInterfaces().getAllActiveInterfaces()) {
+      element = new Element("interface_config");
+      element.setText(moteInterface.getClass().getName());
+
+      Collection interfaceXML = moteInterface.getConfigXML();
+      if (interfaceXML != null) {
+        element.addContent(interfaceXML);
+        config.add(element);
+      }
+    }
+   
+    // Passive interface configs (if any)
+    for (MoteInterface moteInterface: getInterfaces().getAllPassiveInterfaces()) {
+      element = new Element("interface_config");
+      element.setText(moteInterface.getClass().getName());
+
+      Collection interfaceXML = moteInterface.getConfigXML();
+      if (interfaceXML != null) {
+        element.addContent(interfaceXML);
+        config.add(element);
+      }
+    }
+
+    return config;
+  }
+
+  public boolean setConfigXML(Simulation simulation,
+      Collection<Element> configXML) {
+
+    // Set initial configuration
+    mySim = simulation;
+    myMemory = new SectionMoteMemory(new Properties());
+    myInterfaceHandler = new MoteInterfaceHandler();
+    Position myPosition = new Position(this);
+    myInterfaceHandler.addPassiveInterface(myPosition);
+    myDisturberRadio = new DisturberRadio(this);
+    myInterfaceHandler.addActiveInterface(myDisturberRadio);
+
+    
+    for (Element element : configXML) {
+      String name = element.getName();
+
+      if (name.equals("motetype_identifier")) {
+        myType = simulation.getMoteType(element.getText());
+      } else if (name.equals("interface_config")) {
+        Class<? extends MoteInterface> moteInterfaceClass = GUI.currentGUI
+            .tryLoadClass(this, MoteInterface.class, element.getText().trim());
+
+        if (moteInterfaceClass == null) {
+          logger.warn("Can't find mote interface class: " + element.getText());
+          return false;
+        }
+
+        MoteInterface moteInterface = myInterfaceHandler
+            .getInterfaceOfType(moteInterfaceClass);
+        moteInterface.setConfigXML(element.getChildren());
+      }
+
+    }
+    return true;
+  }
+
+  public String toString() {
+    if (getInterfaces().getMoteID() != null) {
+      return "Disturber Mote, ID=" + getInterfaces().getMoteID().getMoteID();
+    } else
+      return "Disturber Mote, ID=null";
+  }
+
+}

tools/cooja/java/se/sics/cooja/motes/DisturberMoteType.java

@@ -0,0 +1,257 @@
+/*
+ * Copyright (c) 2006, Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the Institute nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * 
+ */
+
+package se.sics.cooja.motes;
+
+import java.awt.BorderLayout;
+import java.awt.Dimension;
+import java.util.*;
+import javax.swing.*;
+import org.apache.log4j.Logger;
+import org.jdom.Element;
+
+import se.sics.cooja.*;
+import se.sics.cooja.interfaces.Position;
+
+/**
+ * 
+ *
+ * @author Fredrik Osterlind, Thiemo Voigt
+ */
+@ClassDescription("Disturber Mote Type")
+public class DisturberMoteType implements MoteType {
+  private static Logger logger = Logger.getLogger(DisturberMoteType.class);
+
+  // Mote type specific data
+  private String identifier = null;
+
+  private String description = null;
+
+  private Vector<Class<? extends MoteInterface>> moteInterfaces = null;
+
+  // Type specific class configuration
+  private PlatformConfig myConfig = null;
+
+  // Simulation holding this mote type
+  private Simulation mySimulation = null;
+
+  public DisturberMoteType() {
+  }
+
+  public DisturberMoteType(String identifier) {
+    this.identifier = identifier;
+    description = "Disturber Mote Type #" + identifier;
+  }
+
+  public Mote generateMote(Simulation simulation) {
+    return new DisturberMote(this, simulation);
+  }
+
+  public boolean configureAndInit(JFrame parentFrame, Simulation simulation) {
+
+    if (identifier == null) {
+      // Create unique identifier
+      int counter = 0;
+      boolean identifierOK = false;
+      while (!identifierOK) {
+        counter++;
+        identifier = "dist" + counter;
+        identifierOK = true;
+
+        // Check if identifier is already used by some other type
+        for (MoteType existingMoteType : simulation.getMoteTypes()) {
+          if (existingMoteType != this
+              && existingMoteType.getIdentifier().equals(identifier)) {
+            identifierOK = false;
+            break;
+          }
+        }
+      }
+
+      if (description == null) {
+        // Create description
+        description = "Disturber Mote Type #" + counter;
+      }
+
+    }
+
+    if (description == null) {
+      // Create description
+      description = "Disturber Mote Type #" + identifier;
+    }
+
+    moteInterfaces = new Vector<Class<? extends MoteInterface>>();
+    moteInterfaces.add(Position.class);
+    moteInterfaces.add(DisturberRadio.class);
+
+    return true;
+  }
+
+  /* TV: add next two for interfaces */
+  /**
+   * Returns all mote interfaces of this mote type
+   * 
+   * @return All mote interfaces
+   */
+  public Vector<Class<? extends MoteInterface>> getMoteInterfaces() {
+    return moteInterfaces;
+  }
+
+  /**
+   * Set mote interfaces of this mote type
+   * 
+   * @param moteInterfaces
+   *          New mote interfaces
+   */
+  public void setMoteInterfaces(
+      Vector<Class<? extends MoteInterface>> moteInterfaces) {
+    this.moteInterfaces = moteInterfaces;
+  }
+
+  public String getIdentifier() {
+    return identifier;
+  }
+
+  public void setIdentifier(String identifier) {
+    this.identifier = identifier;
+  }
+
+  public String getDescription() {
+    return description;
+  }
+
+  public void setDescription(String description) {
+    this.description = description;
+  }
+
+  /* TV replaced return null with this */
+  public JPanel getTypeVisualizer() {
+
+    JPanel panel = new JPanel();
+    JLabel label = new JLabel();
+    JPanel smallPane;
+
+    panel.setLayout(new BoxLayout(panel, BoxLayout.Y_AXIS));
+
+    // Identifier
+    smallPane = new JPanel(new BorderLayout());
+    label = new JLabel("Identifier");
+    smallPane.add(BorderLayout.WEST, label);
+    label = new JLabel(identifier);
+    smallPane.add(BorderLayout.EAST, label);
+    panel.add(smallPane);
+
+    // Description
+    smallPane = new JPanel(new BorderLayout());
+    label = new JLabel("Description");
+    smallPane.add(BorderLayout.WEST, label);
+    label = new JLabel(description);
+    smallPane.add(BorderLayout.EAST, label);
+    panel.add(smallPane);
+
+    // Mote Interfaces
+    smallPane = new JPanel(new BorderLayout());
+    label = new JLabel("Mote interfaces");
+    smallPane.add(BorderLayout.WEST, label);
+    panel.add(smallPane);
+
+    for (Class moteInterface : moteInterfaces) {
+      smallPane = new JPanel(new BorderLayout());
+      label = new JLabel(moteInterface.getSimpleName());
+      smallPane.add(BorderLayout.EAST, label);
+      panel.add(smallPane);
+    }
+
+    panel.add(Box.createRigidArea(new Dimension(0, 5)));
+    return panel;
+  }
+
+  public PlatformConfig getConfig() {
+    return myConfig;
+    //return null; /* TV */
+  }
+
+  public Collection<Element> getConfigXML() {
+    Vector<Element> config = new Vector<Element>();
+
+    Element element;
+
+    // Identifier
+    element = new Element("identifier");
+    element.setText(getIdentifier());
+    config.add(element);
+
+    // Description
+    element = new Element("description");
+    element.setText(getDescription());
+    config.add(element);
+
+    // Mote interfaces
+    for (Class moteInterface : getMoteInterfaces()) {
+      element = new Element("moteinterface");
+      element.setText(moteInterface.getName());
+      config.add(element);
+    }
+
+    return config;
+  }
+
+  public boolean setConfigXML(Simulation simulation,
+      Collection<Element> configXML) {
+    for (Element element : configXML) {
+      moteInterfaces = new Vector<Class<? extends MoteInterface>>(); /* TV */
+      mySimulation = simulation; /* TV */
+
+      String name = element.getName();
+
+      if (name.equals("identifier")) {
+        identifier = element.getText();
+      } else if (name.equals("description")) {
+        description = element.getText();
+      } else if (name.equals("moteinterface")) { /* TV */
+        Class<? extends MoteInterface> moteInterfaceClass = GUI.currentGUI
+            .tryLoadClass(this, MoteInterface.class, element.getText().trim());
+
+        if (moteInterfaceClass == null) {
+          logger.warn("Can't find mote interface class: " + element.getText());
+        } else {
+          moteInterfaces.add(moteInterfaceClass);
+        }
+      } else {
+        logger.fatal("Unrecognized entry in loaded configuration: " + name);
+      }
+    }
+
+    boolean createdOK = configureAndInit(GUI.frame, simulation);
+    return createdOK;
+  }
+
+}

tools/cooja/java/se/sics/cooja/motes/DisturberRadio.java

@@ -0,0 +1,255 @@
+/*
+ * Copyright (c) 2006, Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the Institute nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $Id: DisturberRadio.java,v 1.1 2006/12/07 14:25:22 fros4943 Exp $
+ */
+
+package se.sics.cooja.motes;
+
+import java.text.NumberFormat;
+import java.util.*;
+import javax.swing.*;
+import java.beans.PropertyChangeEvent;
+import java.beans.PropertyChangeListener;
+import org.apache.log4j.Logger;
+import org.jdom.Element;
+
+import se.sics.cooja.*;
+import se.sics.cooja.interfaces.Radio;
+
+/**
+ * This radio periodically transmits data on a configurable channel.
+ * 
+ * @author Fredrik Osterlind, Thiemo Voigt
+ */
+public class DisturberRadio extends Radio {
+  private Mote myMote;
+
+  private static Logger logger = Logger.getLogger(DisturberRadio.class);
+
+  private static byte[] packetFromMote = new byte[] { 1, 2, 3, 4, 5 };
+
+  private boolean transmitting = false;
+
+  private int distChannel = -1; // channel mote is disturbing
+
+  private int transEndTime = 0;
+
+  private RadioEvent lastEvent = RadioEvent.UNKNOWN;
+
+  private int lastEventTime = 0;
+
+  public static int TRANSMISSION_INTERVAL = 100;
+  public static int TRANSMISSION_DURATION = 98;
+
+  /**
+   * Creates an interface to the radio at mote.
+   * 
+   * @param mote
+   *          Radio's mote.
+   * @see Mote
+   * @see se.sics.cooja.MoteInterfaceHandler
+   */
+  public DisturberRadio(Mote mote) {
+    this.myMote = mote;
+  }
+
+  public byte[] getLastPacketTransmitted() {
+    return packetFromMote;
+  }
+
+  public byte[] getLastPacketReceived() {
+    return null;
+  }
+
+  public boolean isTransmitting() {
+    return transmitting;
+  }
+
+  public int getTransmissionEndTime() {
+    return transEndTime;
+  }
+
+  public boolean isReceiving() {
+    if (isLockedAtReceiving())
+      return true;
+    return false;
+  }
+
+  public int getChannel() {
+    return distChannel;
+  }
+
+  public RadioEvent getLastEvent() {
+    return lastEvent;
+  }
+
+  /**
+   * @return True if locked at receiving
+   */
+  private boolean isLockedAtReceiving() {
+    return false;
+  }
+
+  public void receivePacket(byte[] data, int endTime) {
+  }
+
+  public void interferReception(int endTime) {
+  }
+
+  public boolean isInterfered() {
+    return false;
+  }
+
+  public double getCurrentOutputPower() {
+    // TODO Implement method
+    logger.warn("Not implemeted, always returning 1.5 dBm");
+    return 1.5;
+  }
+
+  public int getCurrentOutputPowerIndicator() {
+    return 100;
+  }
+
+  public double getCurrentSignalStrength() {
+    return 2.0;
+  }
+
+  public void setCurrentSignalStrength(double signalStrength) {
+  }
+
+  public void doActionsBeforeTick() {
+    int currentTime = myMote.getSimulation().getSimulationTime();
+
+    if (!transmitting && currentTime % TRANSMISSION_INTERVAL == 0) {
+      transmitting = true;
+      lastEvent = RadioEvent.TRANSMISSION_STARTED;
+      lastEventTime = currentTime;
+      transEndTime = currentTime + TRANSMISSION_DURATION;
+      this.setChanged();
+      this.notifyObservers();
+    } else if (transmitting && currentTime >= transEndTime) {
+      transmitting = false;
+      lastEvent = RadioEvent.TRANSMISSION_FINISHED;
+      lastEventTime = currentTime;
+      this.setChanged();
+      this.notifyObservers();
+    }
+  }
+
+  public void doActionsAfterTick() {
+  }
+
+  public JPanel getInterfaceVisualizer() {
+    // Location
+    JPanel panel = new JPanel();
+    panel.setLayout(new BoxLayout(panel, BoxLayout.Y_AXIS));
+
+    final JLabel statusLabel = new JLabel("");
+    final JLabel lastEventLabel = new JLabel("");
+    final JLabel channelLabel = new JLabel("");
+    final JFormattedTextField channelPicker = new JFormattedTextField(NumberFormat.getIntegerInstance());
+
+    panel.add(statusLabel);
+    panel.add(lastEventLabel);
+    panel.add(Box.createVerticalStrut(3));
+    panel.add(channelLabel);
+    panel.add(channelPicker);
+    panel.add(Box.createVerticalGlue());
+    
+    channelPicker.setValue(distChannel);
+    channelPicker.setColumns(3);
+    channelPicker.setText(Integer.toString(distChannel));
+
+    final Observer observer = new Observer() {
+      public void update(Observable obs, Object obj) {
+        if (isTransmitting())
+          statusLabel.setText("Transmitting now!");
+        else
+          statusLabel.setText("Disturber resting...");
+
+        channelLabel.setText("Channel: " + getChannel());
+
+        lastEventLabel.setText("Last event (time=" + lastEventTime + "): " + lastEvent);
+      }
+    };
+    this.addObserver(observer);
+
+    channelPicker.addPropertyChangeListener("value", new PropertyChangeListener() {
+      public void propertyChange(PropertyChangeEvent e) {
+        distChannel = ((Number) channelPicker.getValue()).intValue();
+        if (observer != null)
+          observer.update(null, null);
+      }
+    });
+
+    observer.update(null, null);
+
+    // Saving observer reference for releaseInterfaceVisualizer
+    panel.putClientProperty("intf_obs", observer);
+
+    return panel;
+  }
+
+  public void releaseInterfaceVisualizer(JPanel panel) {
+    Observer observer = (Observer) panel.getClientProperty("intf_obs");
+    if (observer == null) {
+      logger.fatal("Error when releasing panel, observer is null");
+      return;
+    }
+
+    this.deleteObserver(observer);
+  }
+
+  public double energyConsumptionPerTick() {
+    return 0;
+  }
+
+  public Collection<Element> getConfigXML() {
+    Vector<Element> config = new Vector<Element>();
+    Element element;
+
+    // We need to save the mote type identifier
+    element = new Element("channel");
+    element.setText(Integer.toString(distChannel));
+    config.add(element);
+
+    return config;
+  }
+
+  public void setConfigXML(Collection<Element> configXML) {
+    for (Element element : configXML) {
+      String name = element.getName();
+
+      if (name.equals("channel")) {
+        distChannel = Integer.parseInt(element.getText());
+      } else
+        logger.fatal("Read unknown configuration: " + name);
+    }
+  }
+}