File Based Resource Loader extending JSCompressorResourceLoader that enables javascript compression

FileBasedCompressingResourceLoader.java

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

import org.dojotoolkit.compressor.JSCompressorFactory;
import org.dojotoolkit.compressor.JSCompressorResourceLoader;

public class FileBasedCompressingResourceLoader extends JSCompressorResourceLoader {
	private File root = null;

	public FileBasedCompressingResourceLoader(File root, JSCompressorFactory jsCompressorFactory) {
		super (jsCompressorFactory);
		this.root = root;
	}
	
	protected URL _getResource(String path) throws IOException {
		File resourceFile = new File(root, path);
		if (resourceFile.exists()) {
			timestampLookup.put(path, resourceFile.toURI().toURL());
			return resourceFile.toURI().toURL();
		} else {
			return null;
		}
	}
}