extending abstract radio medium
This commit is contained in:
fros4943
parent
9cbdd11623
commit
4f089d113e
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@ -26,13 +26,11 @@
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $Id: SilentRadioMedium.java,v 1.3 2007/02/28 09:50:00 fros4943 Exp $
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* $Id: SilentRadioMedium.java,v 1.4 2007/03/23 21:06:23 fros4943 Exp $
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*/
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package se.sics.cooja.radiomediums;
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import java.util.Collection;
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import java.util.Observable;
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import java.util.Observer;
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import org.jdom.Element;
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import se.sics.cooja.*;
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@ -44,47 +42,19 @@ import se.sics.cooja.interfaces.*;
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* @author Fredrik Osterlind
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*/
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@ClassDescription("No radio traffic")
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public class SilentRadioMedium extends RadioMedium {
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public class SilentRadioMedium extends AbstractRadioMedium {
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public SilentRadioMedium(Simulation simulation) {
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super(simulation);
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}
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public void registerMote(Mote mote, Simulation sim) {
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// Do nothing
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}
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public void unregisterMote(Mote mote, Simulation sim) {
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// Do nothing
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}
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public void registerRadioInterface(Radio radio, Simulation sim) {
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// Do nothing
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}
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public void unregisterRadioInterface(Radio radio, Simulation sim) {
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// Do nothing
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}
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public void addRadioMediumObserver(Observer observer) {
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// Do nothing
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}
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public Observable getRadioMediumObservable() {
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// Return empty observable
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return new Observable();
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}
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public void deleteRadioMediumObserver(Observer observer) {
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// Do nothing
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}
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public RadioConnection[] getLastTickConnections() {
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public RadioConnection createConnections(Radio radio) {
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return null;
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}
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public void setConnectionLogger(ConnectionLogger connection) {
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// Do nothing
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public void updateSignalStrengths() {
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}
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public Collection<Element> getConfigXML() {
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return null;
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@ -93,5 +63,4 @@ public class SilentRadioMedium extends RadioMedium {
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public boolean setConfigXML(Collection<Element> configXML, boolean visAvailable) {
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return true;
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}
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}
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@ -26,7 +26,7 @@
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $Id: UDGM.java,v 1.2 2007/02/28 09:50:00 fros4943 Exp $
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* $Id: UDGM.java,v 1.3 2007/03/23 21:06:23 fros4943 Exp $
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*/
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package se.sics.cooja.radiomediums;
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@ -47,9 +47,10 @@ import se.sics.cooja.plugins.Visualizer2D;
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* The Unit Disk Graph medium has two different range parameters; one for
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* transmitting and one for interfering other transmissions.
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*
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* The radio medium supports both byte and packet radios. Any transmitted bytes
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* are forwarded TODO immediately with a timestamp (more fine-grained than
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* ticks).
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* The radio medium supports both byte and packet radios.
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*
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* TODO Any transmitted bytes are forwarded immediately with a timestamp
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* (more fine-grained than ticks).
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*
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* The radio medium registers a visualizer plugin. Via this plugin the current
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* radio states and range parameters can be viewed and changed.
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@ -69,14 +70,9 @@ import se.sics.cooja.plugins.Visualizer2D;
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* @author Fredrik Osterlind
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*/
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@ClassDescription("Unit Disk Graph Medium (UDGM)")
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public class UDGM extends RadioMedium {
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public class UDGM extends AbstractRadioMedium {
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private static Logger logger = Logger.getLogger(UDGM.class);
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private Vector<Radio> registeredRadios = new Vector<Radio>();
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// private Vector<Radio> transmissionEndedRadios = new Vector<Radio>();
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private Vector<RadioConnection> finishedConnections = new Vector<RadioConnection>();
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private static RadioMedium myRadioMedium;
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public static final double SS_NOTHING = -200;
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@ -86,7 +82,7 @@ public class UDGM extends RadioMedium {
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public static final double SS_OK = 0;
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/**
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* Visualizes radio traffic in the current radio medium. Allows a user to
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* Visualizes radio traffic in the UDGM. Allows a user to
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* change transmission ranges.
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*
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* Sending motes are blue, receiving motes are green and motes that hear noise
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@ -325,41 +321,19 @@ public class UDGM extends RadioMedium {
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}
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public UDGM(Simulation simulation) {
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super(simulation);
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// Register this radio medium's plugins
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simulation.getGUI().registerTemporaryPlugin(VisUDGM.class);
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myRadioMedium = this;
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}
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private boolean isTickObserver = false;
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// Maximum ranges (SS indicator 100)
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private static double TRANSMITTING_RANGE = 50;
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private static double INTERFERENCE_RANGE = 100;
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private class RadioMediumObservable extends Observable {
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private void setRadioMediumChanged() {
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setChanged();
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}
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}
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private RadioMediumObservable radioMediumObservable = new RadioMediumObservable();
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private RadioConnection[] lastTickConnections = null;
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private Vector<RadioConnection> activeConnections = new Vector<RadioConnection>();
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private ConnectionLogger myLogger = null;
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/**
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* Creates and registers a new connection from given radio.
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*
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* @param radio
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* Transmitting radio
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* @return New registered connection
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*/
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private RadioConnection createConnections(Radio radio) {
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Radio sendingRadio = radio;
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public RadioConnection createConnections(Radio sendingRadio) {
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Position sendingPosition = sendingRadio.getPosition();
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RadioConnection newConnection = new RadioConnection(sendingRadio);
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@ -371,8 +345,8 @@ public class UDGM extends RadioMedium {
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* (0.01 * (double) sendingRadio.getCurrentOutputPowerIndicator());
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// Loop through all radios
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for (int listenNr = 0; listenNr < registeredRadios.size(); listenNr++) {
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Radio listeningRadio = registeredRadios.get(listenNr);
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for (int listenNr = 0; listenNr < getRegisteredRadios().size(); listenNr++) {
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Radio listeningRadio = getRegisteredRadios().get(listenNr);
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Position listeningRadioPosition = listeningRadio.getPosition();
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// Ignore sending radio and radios on different channels
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@ -397,7 +371,7 @@ public class UDGM extends RadioMedium {
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// Update connection that is transmitting to this radio
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RadioConnection existingConn = null;
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for (RadioConnection conn : activeConnections) {
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for (RadioConnection conn : getActiveConnections()) {
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for (Radio dstRadio : conn.getDestinations()) {
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if (dstRadio == listeningRadio) {
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existingConn = conn;
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@ -421,84 +395,12 @@ public class UDGM extends RadioMedium {
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newConnection.addInterfered(listeningRadio);
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listeningRadio.interfereAnyReception();
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}
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}
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// Register new connection
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activeConnections.add(newConnection);
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return newConnection;
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}
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/**
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* Forward given packet from source to all destinations in given connection.
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*
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* @param connection
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* Radio connection
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* @param packetData
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* Packet data
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*/
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private void forwardPacket(RadioConnection connection, byte[] packetData) {
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Radio sourceRadio = connection.getSource();
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if (sourceRadio instanceof ByteRadio) {
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// Byte radios only forwards packets to packet radios
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for (Radio receivingRadio : connection.getDestinations()) {
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if (receivingRadio instanceof ByteRadio) {
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// Do nothing (data will be forwarded on byte-per-byte basis)
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} else if (receivingRadio instanceof PacketRadio) {
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// Forward packet data
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((PacketRadio) receivingRadio).setReceivedPacket(packetData);
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} else {
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logger.warn("Packet was not forwarded correctly");
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}
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}
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} else if (sourceRadio instanceof PacketRadio) {
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// Packet radios forwards packets to all packet radios
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for (Radio receivingRadio : connection.getDestinations()) {
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if (receivingRadio instanceof PacketRadio) {
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// Forward packet data
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((PacketRadio) receivingRadio).setReceivedPacket(packetData);
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} else {
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logger.warn("Packet was not forwarded correctly");
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}
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}
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}
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}
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private void removeFromActiveConnections(Radio radio) {
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// Abort any reception
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if (radio.isReceiving()) {
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radio.interfereAnyReception();
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radio.signalReceptionEnd();
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}
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// Remove radio from all active connections
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RadioConnection connToRemove = null;
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for (RadioConnection conn : activeConnections) {
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conn.removeDestination(radio);
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conn.removeInterfered(radio);
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if (conn.getSource() == radio) {
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// Radio is currently transmitting
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connToRemove = conn;
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for (Radio dstRadio : conn.getDestinations()) {
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dstRadio.interfereAnyReception();
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dstRadio.signalReceptionEnd();
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}
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for (Radio dstRadio : conn.getInterfered()) {
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dstRadio.signalReceptionEnd();
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}
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}
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}
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if (connToRemove != null)
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activeConnections.remove(connToRemove);
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}
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/**
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* Updates all radio signal strengths according to current transmissions. This
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* method also updates earlier interfered radios.
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*/
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private void updateSignalStrengths() {
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public void updateSignalStrengths() {
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// // Save old signal strengths
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// double[] oldSignalStrengths = new double[registeredRadios.size()];
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// for (int i = 0; i < registeredRadios.size(); i++) {
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@ -507,12 +409,12 @@ public class UDGM extends RadioMedium {
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// }
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// Reset signal strength on all radios
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for (Radio radio : registeredRadios) {
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for (Radio radio : getRegisteredRadios()) {
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radio.setCurrentSignalStrength(SS_NOTHING);
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}
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// Set signal strength on all OK transmissions
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for (RadioConnection conn : activeConnections) {
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for (RadioConnection conn : getActiveConnections()) {
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conn.getSource().setCurrentSignalStrength(SS_OK);
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for (Radio dstRadio : conn.getDestinations()) {
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dstRadio.setCurrentSignalStrength(SS_OK);
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@ -520,7 +422,7 @@ public class UDGM extends RadioMedium {
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}
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// Set signal strength on all interferences
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for (RadioConnection conn : activeConnections) {
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for (RadioConnection conn : getActiveConnections()) {
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for (Radio dstRadio : conn.getInterfered()) {
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dstRadio.setCurrentSignalStrength(SS_NOISE);
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if (!dstRadio.isInterfered()) {
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@ -545,241 +447,6 @@ public class UDGM extends RadioMedium {
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// }
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}
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private Observer radioEventsObserver = new Observer() {
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public void update(Observable obs, Object obj) {
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if (!(obs instanceof Radio)) {
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logger.fatal("Radio event dispatched by non-radio object");
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return;
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}
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Radio radio = (Radio) obs;
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// Handle radio event
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final Radio.RadioEvent event = radio.getLastEvent();
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// Ignore reception events
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if (event == Radio.RadioEvent.RECEPTION_STARTED
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|| event == Radio.RadioEvent.RECEPTION_INTERFERED
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|| event == Radio.RadioEvent.RECEPTION_FINISHED) {
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return;
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}
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if (event == Radio.RadioEvent.HW_OFF) {
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// Destroy any(?) transfers
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removeFromActiveConnections(radio);
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// Recalculate signal strengths on all radios
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updateSignalStrengths();
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// Wake up tick observer
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radioMediumObservable.setRadioMediumChanged();
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} else if (event == Radio.RadioEvent.HW_ON) {
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// No action
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// TODO Maybe set signal strength levels now?
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// Recalculate signal strengths on all radios
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updateSignalStrengths();
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// Wake up tick observer
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radioMediumObservable.setRadioMediumChanged();
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} else if (event == Radio.RadioEvent.TRANSMISSION_STARTED) {
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/* Create radio connections */
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createConnections((Radio) radio);
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// Recalculate signal strengths on all radios
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updateSignalStrengths();
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// Wake up tick observer
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radioMediumObservable.setRadioMediumChanged();
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} else if (event == Radio.RadioEvent.TRANSMISSION_FINISHED) {
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/* Remove active connection */
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// Find corresponding connection of radio
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RadioConnection connection = null;
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for (RadioConnection conn : activeConnections) {
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if (conn.getSource() == radio) {
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connection = conn;
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break;
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}
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}
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if (connection == null) {
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logger.fatal("Can't find active connection to remove");
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} else {
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activeConnections.remove(connection);
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finishedConnections.add(connection);
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for (Radio dstRadio : connection.getDestinations()) {
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dstRadio.signalReceptionEnd();
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}
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for (Radio dstRadio : connection.getInterfered()) {
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dstRadio.signalReceptionEnd();
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}
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}
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// Recalculate signal strengths on all radios
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updateSignalStrengths();
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// Wake up tick observer
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radioMediumObservable.setRadioMediumChanged();
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} else if (event == Radio.RadioEvent.BYTE_TRANSMITTED) {
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/* Forward byte */
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// Find corresponding connection of radio
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RadioConnection connection = null;
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for (RadioConnection conn : activeConnections) {
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if (conn.getSource() == radio) {
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connection = conn;
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break;
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}
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}
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if (connection == null) {
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logger.fatal("Can't find active connection to forward byte in");
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} else {
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byte b = ((ByteRadio) radio).getLastByteTransmitted();
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long timestamp = ((ByteRadio) radio).getLastByteTransmittedTimestamp();
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for (Radio dstRadio : connection.getDestinations()) {
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if (dstRadio instanceof ByteRadio) {
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((ByteRadio) dstRadio).receiveByte(b, timestamp);
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}
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}
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}
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} else if (event == Radio.RadioEvent.PACKET_TRANSMITTED) {
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/* Forward packet */
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// Find corresponding connection of radio
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RadioConnection connection = null;
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for (RadioConnection conn : activeConnections) {
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if (conn.getSource() == radio) {
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connection = conn;
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break;
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}
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}
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if (connection == null) {
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logger.fatal("Can't find active connection to forward byte in");
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} else {
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byte[] packetData = ((PacketRadio) radio).getLastPacketTransmitted();
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forwardPacket(connection, packetData);
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}
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} else if (event == Radio.RadioEvent.UNKNOWN) {
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// Do nothing
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} else {
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logger.fatal("Unsupported radio event: " + event);
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}
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}
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};
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/**
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* This observer is resposible for making last tick connections available to
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* external observers, as well as forwarding finished connections to any
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* registered connection logger.
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*
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* @see #getLastTickConnections()
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* @see #setConnectionLogger(ConnectionLogger)
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*/
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private Observer tickObserver = new Observer() {
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public void update(Observable obs, Object obj) {
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// Reset any last tick connections
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if (lastTickConnections != null) {
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radioMediumObservable.setRadioMediumChanged();
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lastTickConnections = null;
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}
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// Do nothing if radio medium unchanged
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if (!radioMediumObservable.hasChanged())
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return;
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// Log any new finished connections
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if (finishedConnections.size() > 0) {
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lastTickConnections = new RadioConnection[finishedConnections.size()];
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for (int i = 0; i < finishedConnections.size(); i++)
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lastTickConnections[i] = finishedConnections.get(i);
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finishedConnections.clear();
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// Notify radio medium logger of the finished transmissions
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if (myLogger != null) {
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for (RadioConnection conn : lastTickConnections)
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myLogger.logConnection(conn);
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}
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}
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// Notify all other radio medium observers
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radioMediumObservable.notifyObservers();
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}
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};
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public void registerMote(Mote mote, Simulation sim) {
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registerRadioInterface(mote.getInterfaces().getRadio(), sim);
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}
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public void unregisterMote(Mote mote, Simulation sim) {
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unregisterRadioInterface(mote.getInterfaces().getRadio(), sim);
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}
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public void registerRadioInterface(Radio radio, Simulation sim) {
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if (radio != null) {
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if (!isTickObserver) {
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sim.addTickObserver(tickObserver);
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isTickObserver = true;
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}
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// Warn if radio medium does not support radio
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if (!(radio instanceof PacketRadio)) {
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logger
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.warn("Radio medium does not support radio (no transmission supported)");
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}
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// Register and start observing radio
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registeredRadios.add(radio);
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radio.addObserver(radioEventsObserver);
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// Set initial signal strenth
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radio.setCurrentSignalStrength(SS_NOTHING);
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}
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}
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public void unregisterRadioInterface(Radio radio, Simulation sim) {
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if (!registeredRadios.contains(radio)) {
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logger.warn("Could not find radio: " + radio + " to unregister");
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return;
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}
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radio.deleteObserver(radioEventsObserver);
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registeredRadios.remove(radio);
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removeFromActiveConnections(radio);
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}
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|
||||
public void addRadioMediumObserver(Observer observer) {
|
||||
radioMediumObservable.addObserver(observer);
|
||||
}
|
||||
|
||||
public Observable getRadioMediumObservable() {
|
||||
return radioMediumObservable;
|
||||
}
|
||||
|
||||
public void deleteRadioMediumObserver(Observer observer) {
|
||||
radioMediumObservable.deleteObserver(observer);
|
||||
}
|
||||
|
||||
public RadioConnection[] getLastTickConnections() {
|
||||
return lastTickConnections;
|
||||
}
|
||||
|
||||
public void setConnectionLogger(ConnectionLogger connection) {
|
||||
myLogger = connection;
|
||||
}
|
||||
|
||||
public Collection<Element> getConfigXML() {
|
||||
Vector<Element> config = new Vector<Element>();
|
||||
Element element;
|
||||
|
|
|
|||
Loading…
Reference in a new issue