How to copy a resource directory and all included files and sub-folders in a Jar onto another directory

Question

Is it possible to copy a resource folder, and all the files within, including all directories and sub directories therein into another directory?

What I've managed so far is to copy only one file resource, which is a CSS file:

public void addCSS() {
    Bundle bundle = FrameworkUtil.getBundle(this.getClass());
    Bundle[] bArray = bundle.getBundleContext().getBundles();
    Bundle cssBundle = null;
    for (Bundle b : bArray) {
        if (b.getSymbolicName().equals("mainscreen")) {
            cssBundle = b;
            break;
        }
    }
    Enumeration<URL> resources = null;
    try {
        resources = cssBundle.getResources("/resources/css/mainscreen.css");
    } catch (IOException e) {
            // TODO Auto-generated catch block
        e.printStackTrace();
    }
    if (resources != null) {
        URL myCSSURL = resources.nextElement();

        InputStream in;
        try {
            in = myCSSURL.openStream();
            File css = new File(this.baseDir() + "/ui/resources/css/mainscreen.css");
            try (FileOutputStream out = new FileOutputStream(css)) {
                IOUtils.copy(in, out);
            }
        } catch (IOException e) {
                // TODO Auto-generated catch block
            e.printStackTrace();
        }

    }
}

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score 3 · Accepted Answer · answered Apr 04 '16 at 13:44

3

You need Bundle.findEntries(path,mask,recurse). This method was designed for this purpose, works beautifully with fragments as well.

void getCSSResources( List<URL> out ) 
    for ( Bundle b : context.getBundles() {
       Enumeration<URL> e = b.findEntries("myapp/resources", "*.css", true);
       while (e.hasMoreElements() {
          out.add(e.nextElement());
       }
     }
}

answered Apr 04 '16 at 13:44

Peter Kriens

15,196
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Thank you. Let me try it out. – Program-Me-Rev Apr 04 '16 at 13:52
1

Thank you so much. That was so much helpful, even though it might seem quite obvious. Much appreciated. Works great. Thanks so much for your work with Bnd Tools. It makes OSGi so much more easier and enjoyable. Great! – Program-Me-Rev Apr 04 '16 at 22:55

How to copy a resource directory and all included files and sub-folders in a Jar onto another directory

1 Answers1

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