URLFactory.java

package org.objectweb.jonas_lib.loader.factory;

import java.net.URL;
import java.io.IOException;

public abstract class URLFactory {

    public abstract URL getURL(String path) throws IOException;

    public static URLFactory getFactory(URL url) throws IOException {

        String path = url.getPath();
        if (path.matches(".*\\..ar")) {
            // jar detected if path ends with .?ar (*.jar, *.war, *.ear)
            return new JarURLFactory(url);
        } else if (path.endsWith("/")) {
            // directory detected if url ends with a separator /
            return new DirURLFactory(url);
        } else {
            String err = "Unsupported URL '" + url + "' support "
                + "only jar archive and directory";
            throw new IOException(err);
        }
    }

}

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