JS.java

import java.io.File;

/**
 * User: Eugene Dubrovka Date: 11/8/13 Time: 1:48 PM
 */
public class JS {
	private File hotfolder;

	public JS(File dir) throws Exception {
		init(dir);
	}

	private void init(File dir) throws Exception {
		// check for all required folder or complain with exception
		hotfolder = dir;
		
		// test environment
		// smth's wrong -- shut the light
		// throw heavy thoughts outside
	}

	public void doGood() {
		// 6 * 9 = 42
	}

	// for spring as a factory method, bean creation
	public static JS factory(String path) throws Exception {
		File dir = new File(path);
		createFileStructure(dir);
		return new JS(dir);
	}

	public static void createFileStructure(File dir) {
		// all the code that creates all necessary folders
		dir.mkdirs();
	}

	// usage samples
	public static void main(String[] args) {
		// somewhere in the context
		JS js = null;

		// kind of spring way
		{
			try {
				js = JS.factory(args[0]); // get it from factory
			} catch (Exception e) {
				// ouch!
				e.printStackTrace();
				System.exit(42);
			}
			js.doGood();
		}

		// with boostrap
		{
			File dir = new File(args[0]);

			JS.createFileStructure(dir); // bootstrap

			try {
				js = new JS(dir);
			} catch (Exception e) {
				// oh, no!
				e.printStackTrace();
				System.exit(42);
			}
			js.doGood();
		}

	}
}