spotselector.java

无线传感器网络节点Sun SPOT管理工具

/*
 * Copyright (c) 2007 Sun Microsystems, Inc. All rights reserved. 
 * 
 * Sun Microsystems, Inc. has intellectual property rights relating to technology embodied in the product that is
 * described in this document. In particular, and without limitation, these intellectual property rights may
 * include one or more of the U.S. patents listed at http://www.sun.com/patents and one or more additional patents
 * or pending patent applications in the U.S. and in other countries.
 * 
 * U.S. Government Rights - Commercial software. Government users are subject to the Sun Microsystems, Inc.
 * standard license agreement and applicable provisions of the FAR and its supplements.
 * 
 * Use is subject to license terms. 
 * 
 * This distribution may include materials developed by third parties. Sun, Sun Microsystems, the Sun logo and
 * Java are trademarks or registered trademarks of Sun Microsystems, Inc. in the U.S. and other countries. 
 * 
 * Copyright (c) 2006 Sun Microsystems, Inc. Tous droits r?serv?s.
 * 
 * Sun Microsystems, Inc. d?tient les droits de propri?t? intellectuels relatifs ? la technologie incorpor?e dans
 * le produit qui est d?crit dans ce document. En particulier, et ce sans limitation, ces droits de propri?t?
 * intellectuelle peuvent inclure un ou plus des brevets am?ricains list?s ? l'adresse http://www.sun.com/patents
 * et un ou les brevets suppl?mentaires ou les applications de brevet en attente aux Etats - Unis et dans les
 * autres pays.
 * 
 * L'utilisation est soumise aux termes du contrat de licence.
 * 
 * Cette distribution peut comprendre des composants d?velopp?s par des tierces parties.
 * Sun, Sun Microsystems, le logo Sun et Java sont des marques de fabrique ou des marques d?pos?es de Sun
 * Microsystems, Inc. aux Etats-Unis et dans d'autres pays.
 */
package com.sun.spot.spotworld.usb.spotselector;

import java.io.PrintStream;

/**
 * The SpotSelector class invokes an appropriate implementation for selection of
 * the spot and defines the interface for such implementations
 *
 * @author Christian P黨ringer
 *
 */
abstract public class SpotSelector {
    
    /**
     * This string allows to distinguish in the ant script between error
     * messages and a sucessfully retrieved port
     */
    public static final String ERROR_STRING = "ERROR";
    
    public static PrintStream infoOut = System.out;
    
    public static PrintStream spotPortOut = System.err;
    
    protected SpotInfoTable spotInfoTable;
    
    protected boolean isInteractive;
    
    protected String sunSpotDefaultPort;
    
    protected String portList;
    
    protected boolean hasSunSpotDefaultPort;
    
    protected boolean isVerbose;
    
    protected boolean hasDefaultBaseStationPort;
    
    protected boolean isFindBaseStation;
    
    protected String defaultBaseStationPort;
    
    protected boolean isVeryVerbose;
    
    protected boolean isScanAllBaseStations;
    
    /**
     * @param args
     *                Usage: spotselector [-i] [-v] [-pdefaultport]
     *                <portlist> defaultport is what the program looks for
     *                -i enables interactive mode -v verbose portlist is a
     *                comma separated list of ports returned by the platform
     *                specific executable, e.g. "COM1 (idxxx), COM2
     *                (idxxxx)" or "/dev/tty.usbmodemxyZ,
     *                /dev/tty.usbmodemPQR"
     *
     * <fill out logic from whoteboard> If it cannot find the specified port
     * (or another suitable one based on user input) returns -1 If
     * interaction not enabled and default
     */
    public static void main(String[] args) {
        if (args.length < 1) {
            infoOut.println("No parameter provided.\n");
            printUsage();
            System.exit(-1);
        }
        
        String allPorts = "";
        String defaultPort = "";
        boolean isInteractive = false;
        boolean isVerbose = false;
        boolean isVeryVerbose = false;
        boolean isScanAllBaseStations = false;
        boolean isFindBaseStation = false;
        
        for (int i = 0; i < args.length; i++) {
            if (!args[i].startsWith("-")) {
                allPorts = args[i];
                break;
            } else {
                if (args[i].equals("-h")) {
                    printUsage();
                    System.exit(-1);
                } else if (args[i].equals("-v")) {
                    isVerbose = true;
                } else if (args[i].equals("-vv")) {
                    isVeryVerbose = true;
                    isVerbose = true;
                    
                } else if (args[i].equals("-t:basestation")) {
                    isFindBaseStation = true;
                } else if (args[i].equals("-scanallbasestations")) {
                    isScanAllBaseStations = true;
                } else if (args[i].startsWith("-p")) {
                    if (args[i].length() == 2) {
                        infoOut
                                .println("command line argument 'p' must specifiy serial port");
                        printUsage();
                        System.exit(-1);
                    }
                    defaultPort = args[i].substring(2);
                } else if (args[i].equals("-i")) {
                    isInteractive = true;
                }
            }
        }
        
        if (isVerbose) {
            infoOut.println("isFindBaseStation: " + isFindBaseStation);
            infoOut.println("Ports found:" + allPorts);
        }
        SpotSelector spotselector;
        spotselector = new CommandLineSpotSelector(allPorts, defaultPort,
                isFindBaseStation, isScanAllBaseStations, isInteractive,
                isVerbose, isVeryVerbose);
        
        // Retrieves the port (or the error message) to use and prints it to the
        // stream
        // read by the calling ant script.
        spotPortOut.print(spotselector.getPortOfSpotToUse());
        // System.exit(ret); //Don't do that in ant if not executed with
        // fork=true
        
    }
    
    abstract protected String getPortOfSpotToUse();
    
    private static void printUsage() {
        infoOut.println("SpotSelector [options] port_list\nOptions:\n\t-h prints this information\n\t"); // TODO: usage information
    }
}