added Contiki Filesystem (CFS) support in COOJA: java interface
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/*
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* Copyright (c) 2006, Swedish Institute of Computer Science.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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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: ContikiCFS.java,v 1.1 2006/10/11 14:19:39 fros4943 Exp $
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*/
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package se.sics.cooja.contikimote.interfaces;
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import java.awt.Dimension;
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import java.util.*;
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import javax.swing.*;
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import org.apache.log4j.Logger;
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import org.jdom.Element;
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import se.sics.cooja.*;
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import se.sics.cooja.contikimote.ContikiMoteInterface;
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/**
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* The class represents a Contiki filesystem, for example an EEPROM or external
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* flash memory.
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*
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* It needs read/write access to the following core variables:
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* <ul>
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* <li>char[] simCFSData
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* <li>char simCFSChanged (1=filesystem has been altered)
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* <li>int simCFSRead (bytes read from filesystem)
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* <li>int simCFSWritten (bytes written to filesystem)
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* </ul>
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* <p>
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* Dependency core interfaces are:
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* <ul>
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* <li>cfs_interface
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* </ul>
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* <p>
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* This observable is changed and notifies observers whenever the filesystem has
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* been read from or written to.
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*
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* @author Fredrik Osterlind
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*/
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@ClassDescription("Filesystem")
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public class ContikiCFS extends MoteInterface implements ContikiMoteInterface {
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private static Logger logger = Logger.getLogger(ContikiCFS.class);
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public int FILESYSTEM_SIZE = 60*1024;
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private Mote mote = null;
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private SectionMoteMemory moteMem = null;
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private int lastRead = 0;
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private int lastWritten = 0;
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/**
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* Approximate energy consumption of every character read from filesystem (mQ).
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*/
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public final double ENERGY_CONSUMPTION_PER_READ_CHAR_mQ;
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public final double ENERGY_CONSUMPTION_PER_WRITTEN_CHAR_mQ;
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private double myEnergyConsumption = 0.0;
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/**
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* Creates an interface to the filesystem at mote.
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*
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* @param mote
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* Mote.
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* @see Mote
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* @see se.sics.cooja.MoteInterfaceHandler
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*/
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public ContikiCFS(Mote mote) {
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// Read class configurations of this mote type
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ENERGY_CONSUMPTION_PER_READ_CHAR_mQ = mote.getType().getConfig()
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.getDoubleValue(ContikiCFS.class, "CONSUMPTION_PER_READ_CHAR_mQ");
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ENERGY_CONSUMPTION_PER_WRITTEN_CHAR_mQ = mote.getType().getConfig()
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.getDoubleValue(ContikiCFS.class, "CONSUMPTION_PER_WRITTEN_CHAR_mQ");
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this.mote = mote;
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this.moteMem = (SectionMoteMemory) mote.getMemory();
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}
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public static String[] getCoreInterfaceDependencies() {
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return new String[]{"cfs_interface"};
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}
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public void doActionsBeforeTick() {
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// Nothing to do
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}
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public void doActionsAfterTick() {
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if (moteMem.getByteValueOf("simCFSChanged") == 1) {
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lastRead = moteMem.getIntValueOf("simCFSRead");
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lastWritten = moteMem.getIntValueOf("simCFSWritten");
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moteMem.setIntValueOf("simCFSRead", 0);
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moteMem.setIntValueOf("simCFSWritten", 0);
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moteMem.setByteValueOf("simCFSChanged", (byte) 0);
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myEnergyConsumption =
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ENERGY_CONSUMPTION_PER_READ_CHAR_mQ*lastRead +
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ENERGY_CONSUMPTION_PER_WRITTEN_CHAR_mQ*lastWritten;
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this.setChanged();
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this.notifyObservers(mote);
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} else
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myEnergyConsumption = 0.0;
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}
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/**
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* Set filesystem data.
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*
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* @param data Data
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* @return True if operation successful
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*/
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public boolean setFilesystemData(byte[] data) {
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if (data.length > FILESYSTEM_SIZE) {
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logger.fatal("Error. Filesystem data too large, skipping");
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return false;
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}
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moteMem.setByteArray("simCFSData", data);
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return true;
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}
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/**
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* Get filesystem data.
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*
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* @return Filesystem data
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*/
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public byte[] getFilesystemData() {
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return moteMem.getByteArray("simCFSData", FILESYSTEM_SIZE);
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}
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/**
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* @return Read bytes count last change.
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*/
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public int getLastReadCount() {
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return lastRead;
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}
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/**
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* @return Written bytes count last change.
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*/
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public int getLastWrittenCount() {
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return lastWritten;
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}
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public JPanel getInterfaceVisualizer() {
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JPanel panel = new JPanel();
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panel.setLayout(new BoxLayout(panel, BoxLayout.Y_AXIS));
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final JLabel lastTimeLabel = new JLabel("Last change at: [unknown]");
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final JLabel lastReadLabel = new JLabel("Last change read bytes: 0");
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final JLabel lastWrittenLabel = new JLabel("Last change wrote bytes: 0");
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panel.add(lastTimeLabel);
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panel.add(lastReadLabel);
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panel.add(lastWrittenLabel);
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Observer observer;
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this.addObserver(observer = new Observer() {
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public void update(Observable obs, Object obj) {
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int currentTime = mote.getSimulation().getSimulationTime();
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lastTimeLabel.setText("Last change at time: " + currentTime);
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lastReadLabel.setText("Last change read bytes: " + getLastReadCount());
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lastWrittenLabel.setText("Last change wrote bytes: " + getLastWrittenCount());
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}
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});
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// Saving observer reference for releaseInterfaceVisualizer
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panel.putClientProperty("intf_obs", observer);
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panel.setMinimumSize(new Dimension(140, 60));
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panel.setPreferredSize(new Dimension(140, 60));
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return panel;
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}
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public void releaseInterfaceVisualizer(JPanel panel) {
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Observer observer = (Observer) panel.getClientProperty("intf_obs");
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if (observer == null) {
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logger.fatal("Error when releasing panel, observer is null");
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return;
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}
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this.deleteObserver(observer);
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}
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public double energyConsumptionPerTick() {
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return myEnergyConsumption;
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}
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public Collection<Element> getConfigXML() {
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return null;
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}
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public void setConfigXML(Collection<Element> configXML) {
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}
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}
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