osd-contiki/tools/cooja/java/se/sics/cooja/MoteInterface.java

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/*
* 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: MoteInterface.java,v 1.3 2007/01/10 14:57:42 fros4943 Exp $
*/
package se.sics.cooja;
import java.util.Collection;
import java.util.Observable;
import javax.swing.JPanel;
import org.apache.log4j.Logger;
import org.jdom.Element;
/**
* A mote interface represents a mote property. Often this is a simulated
* hardware peripheral such as a button or a led. This can also be a property
* the mote software itself is unaware of, for example the current position of
* the mote.
*
* Interfaces are the main way for the simulator to interact with a simulated
* mote.
*
* Interfaces are divided into active and passive interfaces, which are handled
* differently. In order to create a passive interface, the class should also
* implement the dummy Java interface PassiveMoteInterface. For an explanation
* of the differences of active and passive interfaces see class
* PassiveMoteInterface.
*
* @see PassiveMoteInterface
* @author Fredrik Osterlind
*/
public abstract class MoteInterface extends Observable {
private static Logger logger = Logger.getLogger(MoteInterface.class);
/**
* This method creates an instance of the given class with the given mote as
* constructor argument. Instead of calling the interface constructors
* directly this method may be used.
*
* @param interfaceClass
* Mote interface class
* @param mote
* Mote that will hold the interface
* @return Mote interface instance
*/
public static final MoteInterface generateInterface(
Class<? extends MoteInterface> interfaceClass, Mote mote) {
try {
// Generating interface
MoteInterface instance = (MoteInterface) interfaceClass.getConstructor(
new Class[] { Mote.class }).newInstance(new Object[] { mote });
return instance;
} catch (Exception e) {
logger.fatal("Exception when creating " + interfaceClass + ": " + e);
return null;
}
}
/**
* Actions to be performed just before the holding mote is ticked
*/
public abstract void doActionsBeforeTick();
/**
* Actions to be performed just after the holding mote has been ticked
*/
public abstract void doActionsAfterTick();
/**
* Returns a panel with interesting data for this interface. This could for
* example show last messages sent/received for a radio interface, or logged
* message for a log interface.
*
* All panels returned from this method must later be released for memory
* reasons.
*
* If returned panel is null, this interface will not be visualized.
*
* @see #releaseInterfaceVisualizer(JPanel)
* @return Interface visualizer or null
*/
public abstract JPanel getInterfaceVisualizer();
/**
* This method should be called when a visualizer panel is no longer in use.
* Any resources of that panel, for example registered observers, will be
* released.
*
* @see #getInterfaceVisualizer()
* @param panel
* A interface visualizer panel fetched earlier for this mote
* interface.
*/
public abstract void releaseInterfaceVisualizer(JPanel panel);
/**
* Returns approximated energy consumed (mQ) during the current tick. If the
* interface is active, this information must be available after the
* doActionsAfterTick method. If the interface is passive, this information
* must be available after the doActionsBeforeTick method.
*
* The interface is responsible to gather information about the current
* internal state, and calculate whatever energy it needs in that state and
* during one tick.
*
* If the holding mote is dead, this method will not be called. If the holding
* mote is sleeping and this interface is active, this method will not be
* called.
*
* For example, a radio transmitter or a PIR sensor often has a much higher
* energy usage than a button sensor which virtually needs no energy at all.
* If the radio is turned off in hardware, it should return a zero energy
* consumption. If the radio is sending something which would take longer than
* one tick, it may either return the total energy used directly, or a smaller
* amount during several ticks.
*
* This method may typically be used by the passive interface battery, which
* sums up all energy used during one tick and decreases the battery energy
* left.
*
* @see se.sics.cooja.interfaces.Battery
* @return Energy consumption of this device during the current tick
*/
public abstract double energyConsumptionPerTick();
/**
* Returns XML elements representing the current config of this mote
* interface. This is fetched by the simulator for example when saving a
* simulation configuration file. For example an IP interface may return one
* element with the mote IP address. This method should however not return
* state specific information such as a log history. (All nodes are restarted
* when loading a simulation.)
*
* @see #setConfigXML(Collection, boolean)
* @return XML elements representing the current interface config
*/
public abstract Collection<Element> getConfigXML();
/**
* Sets the current mote interface config depending on the given XML elements.
*
* @see #getConfigXML()
* @param configXML
* Config XML elements
* @param visAvailable
* Is this object allowed to show a visualizer?
*/
public abstract void setConfigXML(Collection<Element> configXML,
boolean visAvailable);
}