application-level mote that imitates the behavior of Rime's anonymous broadcast example in /examples/rime/example-abc.

tools/cooja/examples/appmote_rimeabc/RimeABC.java

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+/*
+ * Copyright (c) 2010, 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.
+ *
+ *
+ */
+
+import java.util.Random;
+
+import se.sics.cooja.COOJARadioPacket;
+import se.sics.cooja.MoteTimeEvent;
+import se.sics.cooja.MoteType;
+import se.sics.cooja.RadioPacket;
+import se.sics.cooja.Simulation;
+import se.sics.cooja.interfaces.ApplicationLED;
+import se.sics.cooja.interfaces.ApplicationRadio;
+import se.sics.cooja.motes.AbstractApplicationMote;
+
+/**
+ * Example application-level mote.
+ * Imitates the same behavior as /examples/rime/example-abc.c.
+ * 
+ * This mote is simulated in COOJA via the Imported App Mote Type.
+ * 
+ * @author Fredrik Osterlind
+ */
+public class RimeABC extends AbstractApplicationMote {
+
+  private Simulation simulation = null;
+  private Random random = null;
+  private ApplicationRadio radio = null;
+  private ApplicationLED leds = null;
+
+  private final static byte RIME_CHANNEL1 = (byte) 128;
+  private final static byte RIME_CHANNEL2 = (byte) 0;
+  private final static RadioPacket RIME_ABC_DATA =
+    new COOJARadioPacket(new byte[] {
+        RIME_CHANNEL1, RIME_CHANNEL2, 
+        'H', 'e', 'l', 'l', 'o', '\0'
+    });
+
+  public RimeABC() {
+    super();
+  }
+
+  public RimeABC(MoteType moteType, Simulation simulation) {
+    super(moteType, simulation);
+  }
+
+  public void execute(long time) {
+    /*System.out.println(this + ": execute(" + time + ")");*/
+
+    if (radio == null) {
+      simulation = getSimulation();
+      random = simulation.getRandomGenerator();
+      radio = (ApplicationRadio) getInterfaces().getRadio();
+      leds = (ApplicationLED) getInterfaces().getLED();
+    }
+
+    /* Delay 2-4 seconds */
+    simulation.scheduleEvent(
+        transmitEvent,
+        simulation.getSimulationTime() + 
+        (2000 + random.nextInt(2000))*Simulation.MILLISECOND
+    );
+  }
+
+  private MoteTimeEvent transmitEvent = new MoteTimeEvent(this, 0) {
+    public void execute(long t) {
+      /* Transmit Rime abc radio packet.
+       * sentPacket is called when transmission finishes. */
+      radio.startTransmittingPacket(
+          RIME_ABC_DATA, 1*Simulation.MILLISECOND);
+
+      /* Turn on red LED */
+      leds.setLED(ApplicationLED.LEDS_RED);
+    }
+  };
+
+  public void receivedPacket(RadioPacket p) {
+    byte[] packetData = p.getPacketData();
+    if (packetData.length < 3) {
+      /* Too small */
+      return;
+    }
+    if (packetData[0] != RIME_CHANNEL1 || packetData[1] != RIME_CHANNEL2) {
+      /* Wrong Rime channel */
+      return;
+    }
+
+    byte[] noHeader = new byte[packetData.length-2-1];
+    System.arraycopy(packetData, 2, noHeader, 0, noHeader.length);
+    String test = new String(noHeader);
+    System.out.println(this + ": abc message received '" + test + "'");
+
+    /* Turn on green LED */
+    leds.setLED(ApplicationLED.LEDS_GREEN);
+  }
+
+  public void sentPacket(RadioPacket p) {
+    System.out.println(this + ": abc message sent");
+    requestImmediateWakeup(); /* Triggers execute method */
+  }
+
+  public String toString() {
+    return "App Rime ABC " + getID();
+  }
+
+  public boolean tick(long simTime) {
+    /* Obsolete method */
+    return false;
+  }
+}
+

tools/cooja/examples/appmote_rimeabc/build.xml

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+<?xml version="1.0"?>
+
+<project name="COOJA App mote example: Rime's ABC" default="compile" basedir=".">
+  <property name="cooja" location="../.."/>
+  <property name="cooja_jar" value="${cooja}/dist/cooja.jar"/>
+
+  <target name="init">
+    <tstamp/>
+  </target>
+
+  <target name="compile" depends="init">
+    <javac srcdir="." destdir="." debug="on">
+      <classpath>
+        <pathelement location="${cooja_jar}"/>
+      </classpath>
+    </javac>
+  </target>
+
+</project>