codingmanager.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;

import com.sun.spot.spotworld.gui.AppProjectFileChooser;
import com.sun.spot.spotworld.gui.SpotWorldPortal;
import java.io.File;
import java.io.IOException;
import javax.swing.JComponent;
import javax.swing.JFileChooser;
import javax.swing.filechooser.FileFilter;

/**
 * Information about java source files, suite files, and all that, and methods for managing
 * and deploying suites.
 *
 * @author randy
 */
public class CodingManager {
    
    private static CodingManager soleInstance;
    
    public static CodingManager getInstance(){
        if(soleInstance == null){
            soleInstance = new CodingManager();
        } 
        return soleInstance;
    }
    
    public CodingManager() {
        init();
    }
    
    public void init(){
        //Try hard to start with some default directory
        File currentProjDir = getCurrentProjDir();
        if(currentProjDir.isFile()){
            //Maybe can happen if running from a jar file. Find a directory instead.
            currentProjDir = currentProjDir.getParentFile();
            
            if(currentProjDir == null) {
                currentProjDir = File.listRoots()[0];
            }
            setCurrentProjDir(currentProjDir);
        }
    }
    
    /*
     * A cleaned project directory has a build.xml file and a src/ directory.
     */
    public String checkIfProperProjDirectory(String dirName){
        String reply = "OK";
        File dir = new File(dirName);
        if(! dir.exists()) {
            reply = "" + dirName + ": does not exist."; 
            return reply;
        }
        if(! dir.isDirectory()){
            reply = "" + dirName + " is a file, please choose a directory with build.xml and a src subdirectory.";
            return reply;
        }
        File buildFile = new File(dirName + File.separator + "build.xml");
        if(! buildFile.exists()) reply = "No build.xml file in " + dirName;
        File srcDir    = new File(dirName + File.separator + "src");
        if(! buildFile.exists()){
            if(reply.equals("OK")) {
                reply = "No src directory in " + dirName;
            } else {
                reply = reply + "\nNo src directory in " + dirName;
            }
        } 
        return reply;
    }
    
    public File getBuildFileFromUser(JComponent comp){
        AppProjectFileChooser fc;
        try {
            fc = new AppProjectFileChooser(getCurrentProjDir().getCanonicalPath());  
            fc.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
            fc.setApproveButtonText("Use this directory");
            fc.setDialogTitle("Select application project directory (must contain a build.xml)");
            String dirName = getCurrentProjDir().getCanonicalPath();
            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(comp);
            if (returnVal == JFileChooser.APPROVE_OPTION) { 
                File sel = fc.getSelectedFile();
                setCurrentProjDir(sel.getParentFile());
                return sel;
            }
        } catch (IOException ex) {
            ex.printStackTrace();
        }
        return null;
    }
    
    public FileFilter newProjFileFilter(){
        return new FileFilter(){
            public boolean accept(File f){
                return f.isDirectory() || f.getName().equals("build.xml");
            }
            public String getDescription(){ return "build.xml"; }
        };
    } 

    public File getCurrentProjDir() {
        String dirName = SpotWorldPortal.getSPOTWorldProperty("DeploymentDir"); 
        if(dirName == null){
            dirName = System.getProperty("sunspot.home") + "/src/kami/";
            System.out.println("USING = " + dirName);
        }
        File newDir = new File(dirName);
        if(! newDir.exists()) newDir = new File("."); //Gues that has to exist.
        setCurrentProjDir(newDir);
        return newDir;
    }

    public void setCurrentProjDir(File dir) {
        SpotWorldPortal.setSPOTWorldProperty("DeploymentDir", dir.getAbsolutePath());
    }
    
    /*
     * Utility: most recent modification time (in milliseconds since 1969) of the 
     * files in this directory, through subdirectories transitivly.
     */
    
    public long getMostRecentModTime(File dir){
        if(! dir.isDirectory()){
            throw new RuntimeException("method applies only to directories.");
        }
        long reply = 0;
        long t = 0;
        File[] files = dir.listFiles();
        for(File f : files){
            if(f.isDirectory()) t = getMostRecentModTime(f);
            else t = f.lastModified();
            if(t > reply) reply = t;
        }
        return reply;
    }
}