IdController.java

package com.robert.vesta.rest;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

import com.robert.vesta.service.bean.Id;
import com.robert.vesta.service.intf.IdService;

@RestController
public class IdController {

	private final IdService idService;

	public IdController() {
		ApplicationContext ac = new ClassPathXmlApplicationContext(
				"spring/vesta-rest-main.xml");

		idService = (IdService) ac.getBean("idService");
	}

	@RequestMapping("/genid")
	public long genId() {
		return idService.genId();
	}

	@RequestMapping("/expid")
	public Id explainId(@RequestParam(value = "id", defaultValue = "0") long id) {
		return idService.expId(id);
	}

	@RequestMapping("/transtime")
	public String transTime(
			@RequestParam(value = "time", defaultValue = "-1") long time) {
		return idService.transTime(time).toString();
	}

	@RequestMapping("/makeid")
	public long makeId(
			@RequestParam(value = "version", defaultValue = "-1") long version,
			@RequestParam(value = "type", defaultValue = "-1") long type,
			@RequestParam(value = "genMethod", defaultValue = "-1") long genMethod,
			@RequestParam(value = "machine", defaultValue = "-1") long machine,
			@RequestParam(value = "time", defaultValue = "-1") long time,
			@RequestParam(value = "seq", defaultValue = "-1") long seq) {

		long madeId = -1;
		if (time == -1 || seq == -1)
			throw new IllegalArgumentException(
					"Both time and seq are required.");
		else

		if (version == -1) {
			if (type == -1) {
				if (genMethod == -1) {
					if (machine == -1) {
						madeId = idService.makeId(time, seq);
					} else {
						madeId = idService.makeId(machine, time, seq);
					}
				} else {
					madeId = idService.makeId(genMethod, machine, time, seq);
				}
			} else {
				madeId = idService.makeId(type, genMethod, machine, time, seq);
			}
		} else {
			madeId = idService.makeId(version, type, genMethod, machine, time,
					seq);
		}

		return madeId;
	}
}