desktopappmanager.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.gui;

import java.io.BufferedReader;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.Map;
import javax.swing.JFileChooser;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;

/**
 *
 * @author randy
 */
public class DesktopAppManager {
    
    public DesktopAppManager(){};
    
    private static DesktopAppManager soleInstance;
    
    public static DesktopAppManager getInstance(){
        if(soleInstance == null) soleInstance = new DesktopAppManager();
        return soleInstance;
    }
    
    SpotWorldPortal swp; 
    
    public void setSPOTWorldPortal(SpotWorldPortal s){
        swp = s;
    }

    public String getCurrentDesktopProjDir() {
        String x = swp.getSPOTWorldProperty("DesktopAppDir");
        if(x == null) x = ".";
        return x;
    }

    public void setCurrentDesktopProjDir(String x) {
        addRecentDesktopApp(x);
        swp.setSPOTWorldProperty("DesktopAppDir", x);
    }
    
    /* returns a comma-separated list of file names */ 
    public String[] getRecentDesktopApps(){
        String s = swp.getSPOTWorldProperty("recentDesktopAppDirs");
        if (s==null) return new String[0];
        return  s.split(",");
    }
    
    /* Keep track of at most 5. The parameter app is a full file name */
    public void addRecentDesktopApp(String app){
        int maxApps = 5;
        String[] oldApps = getRecentDesktopApps();
        //Return if app is already in here
        for (int i = 0; i < oldApps.length; i++) {
            if(oldApps[i].equals(app)) return;
        }
        // newApps array is one longer than the oldApps array. Up to a length of maxApps.
        String [] newApps = new String[Math.min(oldApps.length + 1, maxApps)]; 
        if (oldApps.length >=maxApps) {
            // oldApps and newApps lengths are maxed out.
            // Remove oldApps[0] as the oldest, and move all others forward one.
            for(int i = 1; i < oldApps.length; i++){
                newApps[i-1] = oldApps[i];
            }
        } else {
            for(int i = 0; i < oldApps.length; i++){
                newApps[i] = oldApps[i];
            }
        }
        //The new app goes at the end of the list.
        newApps[newApps.length - 1] = app;
         
        // Make a single comma-separated string for storing as a property
        String newAppString = newApps[0];
        for (int i = 1; i < newApps.length; i++) {
            newAppString = newApps[i] + "," + newAppString;
        }
        swp.setSPOTWorldProperty("recentDesktopAppDirs", newAppString);
        //Update the menu. 
        JMenuBar mb = swp.createMenuBar();
        swp.setJMenuBar(mb);
        //The next line is a Java Swing bug workaround.
        mb.revalidate();
    }
    
    public void runAppFromUser(){
        File appDir = getDesktopAppDirectoryFromUser("Select directory containting build.xml");
        if(appDir == null) return; //User cancelled.
        runApp(appDir);
    }

    public void runApp(final File appDir){
         final String[] cmd = {"ant", "host-run"};
         Runnable r = new Runnable(){
            public void run(){
                try { 
                    Process proc = Runtime.getRuntime().exec(  cmd,  new String[0],  appDir);
                    
                    // put a BufferedReader on the output
                    BufferedReader bufferedreader = getBufferedReader(proc);
                    // read the output
                    String line;
                    while ((line = bufferedreader.readLine())
                    != null) {
                        System.out.println("[DesktopApp] " + line);
                    }
                    
                    // check for failure
                    try {
                        if (proc.waitFor() != 0) {
                            System.err.println("Desktop app abnormal exit, value = " +
                                    proc.exitValue());
                        }
                    } catch (InterruptedException e) {
                        System.err.println(e);
                    }
                    
                } catch (IOException ex) {
                    ex.printStackTrace();
                }
            }
        };
        (new Thread(r)).start();
    }
    
    File getDesktopAppDirectoryFromUser(String title){
         AppProjectFileChooser fc;
        try {
            String dirName = getCurrentDesktopProjDir();
            File dir= new File(dirName);
            String initialDirName = dir.getParent();
            fc = new AppProjectFileChooser(initialDirName);  
            fc.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
            fc.setApproveButtonText("Use this directory");
            fc.setDialogTitle(title);
            if(!dirName.endsWith(File.separator)) dirName = dirName + File.separator;
            File f = new File(dirName +  "build.xml");
            // On the Mac the next line does not work .. it is a known and filed bug.
            if(f.exists()) fc.setSelectedFile(f);
            int returnVal = fc.showOpenDialog(swp);
            if (returnVal == JFileChooser.APPROVE_OPTION) {
                File sel = fc.getSelectedFile();
                //RECORD THIS ONE FOR POSTERITY
                setCurrentDesktopProjDir(sel.getCanonicalPath());
                return sel;
            }
        } catch (IOException ex) {
            ex.printStackTrace();
        }
        return null;
    }

    /* 
     * Utility: Why doesn't Java just give us this stuff directly???
     */
    public BufferedReader getBufferedReader(Process proc){
     InputStream inputstream =
                proc.getInputStream();
            InputStreamReader inputstreamreader =
                new InputStreamReader(inputstream);
            BufferedReader bufferedreader =
                new BufferedReader(inputstreamreader);
            return bufferedreader ;
    }
    
    /* Creates a special kind of menu item that contains the full path name */
    public DesktopAppMenuItem createMenuItem(String label, String appDirName){
        DesktopAppMenuItem d = new DesktopAppMenuItem(label);
        d.appDirName = appDirName;
        return d;
    }
    
    /*
     * Do nothing if this is an everyday JMenuItem and return false. But if it is our special
     * kind of menu item, run the app named within it. Then return true.
     */
    public boolean doMenuItem(JMenuItem mi){
        if(mi instanceof DesktopAppMenuItem){
            File appDir = new File(((DesktopAppMenuItem)mi).appDirName);
            runApp(appDir);
            return true;
        } else {
            return false;
        }
    }
}

/*
 * A special MenuItem for DesktopAppManager use that contains a full directory name.
 */
class DesktopAppMenuItem extends JMenuItem {
    public DesktopAppMenuItem(String label){
        super(label);
    }
    public String appDirName;
}