DirLocator.java

package org.objectweb.jonas_lib.loader.locator;

import java.io.File;
import java.io.IOException;
import java.net.URL;
import java.util.List;
import java.util.Vector;

public class DirLocator extends Locator {

    private File file = null;

    public DirLocator(URL jar) throws IOException {
        String filename = jar.getFile();
        file = new File(filename);
        if (!file.exists()) {
            throw new IOException("File " + file + " does not exists.");
        }
        if (!file.isDirectory()) {
            throw new IOException("File " + file + " is not a directory.");
        }
    }

    public boolean hasFile(String path) {

        File child = new File(file, path);
        return (child.exists() && child.isFile());
    }

    public boolean hasDirectory(String path) {

        File child = new File(file, path);
        return (child.exists() && child.isDirectory());
    }

    public List listContent(String path) {

        File child = new File(file, path);
        List libs = new Vector();
        // List directory content
        if (child.isDirectory()) {
            addContent(child, libs);
        }

        return libs;
    }

    private void addContent(File f, List l) {
        File[] childs = f.listFiles();
        if (childs != null) {
            for (int i = 0; i < childs.length; i++) {
                if (childs[i].isDirectory()) {
                    addContent(childs[i], l);
                } else if (childs[i].isFile()) {
                    l.add(childs[i].getPath().substring(file.getPath().length()));
                }
            }
        }
    }

}

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