290 lines
8.8 KiB
Java
290 lines
8.8 KiB
Java
/*
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* Copyright (c) 2008, 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 1.8 2008/12/04 14:03:42 joxe Exp $
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*/
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package se.sics.cooja.contikimote.interfaces;
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import java.awt.Component;
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import java.awt.Dimension;
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import java.awt.event.ActionEvent;
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import java.awt.event.ActionListener;
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import java.io.*;
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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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import se.sics.cooja.interfaces.PolledAfterActiveTicks;
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/**
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* Contiki FileSystem (CFS) interface (such as external flash).
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*
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* Contiki 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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*
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* Core interface:
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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 notifies when the filesystem is used (read/write).
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*
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* @author Fredrik <20>sterlind
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*/
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@ClassDescription("Filesystem (CFS)")
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public class ContikiCFS extends MoteInterface implements ContikiMoteInterface, PolledAfterActiveTicks {
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private static Logger logger = Logger.getLogger(ContikiCFS.class);
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public int FILESYSTEM_SIZE = 60*1024; /* Configure me */
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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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private TimeEvent doneEvent = new TimeEvent(0) {
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public void execute(long t) {
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myEnergyConsumption = 0.0;
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}
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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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/* Reset energy consumption */
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mote.getSimulation().scheduleEvent(doneEvent, mote.getSimulation().getSimulationTime());
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}
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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: ?");
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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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final JButton uploadButton = new JButton("Upload binary file");
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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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panel.add(uploadButton);
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uploadButton.addActionListener(new ActionListener() {
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public void actionPerformed(ActionEvent e) {
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byte[] fileData = readDialogFileBytes(null);
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// Write file data to CFS
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if (fileData != null) {
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setFilesystemData(fileData);
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logger.info("Done! (" + fileData.length + " bytes written to CFS)");
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}
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}
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});
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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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long 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 energyConsumption() {
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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, boolean visAvailable) {
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}
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/**
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* Opens a file dialog and returns the contents of the selected file or null if dialog aborted.
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*
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* @param parent Dialog parent, may be null
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* @return Binary contents of user selected file
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*/
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public static byte[] readDialogFileBytes(Component parent) {
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// Choose file
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File file = null;
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JFileChooser fileChooser = new JFileChooser();
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fileChooser.setCurrentDirectory(new java.io.File("."));
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fileChooser.setFileSelectionMode(JFileChooser.FILES_ONLY);
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fileChooser.setDialogTitle("Select binary data");
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if (fileChooser.showOpenDialog(parent) == JFileChooser.APPROVE_OPTION) {
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file = fileChooser.getSelectedFile();
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} else {
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return null;
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}
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// Read file data
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long fileSize = file.length();
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byte[] fileData = new byte[(int) fileSize];
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FileInputStream fileIn;
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DataInputStream dataIn;
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int offset = 0;
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int numRead = 0;
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try {
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fileIn = new FileInputStream(file);
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dataIn = new DataInputStream(fileIn);
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while (offset < fileData.length
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&& (numRead = dataIn.read(fileData, offset, fileData.length - offset)) >= 0) {
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offset += numRead;
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}
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dataIn.close();
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fileIn.close();
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} catch (Exception ex) {
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logger.debug("Exception ex: " + ex);
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return null;
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}
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return fileData;
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}
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}
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