package com.google.code.rsser.web.controller;import java.util.HashMap;import java.util.Map;import javax.servlet.http.HttpServletRequest;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.validation.BindException;import org.springframework.web.bind.ServletRequestDataBinder;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.servlet.ModelAndView;import org.springframework.web.servlet.mvc.SimpleFormController;import com.google.code.rsser.exception.InvalidFeedException;import com.google.code.rsser.model.Feed;import com.google.code.rsser.model.User;import com.google.code.rsser.service.EntryService;import com.google.code.rsser.service.FeedService;import com.google.code.rsser.service.UserService;@RequestMapping(value = "/subscribe.html")public class SubscribeController extends SimpleFormController {		@Autowired	protected FeedService feedService;		@Autowired	protected EntryService entryService;			@Autowired	protected UserService userService;		@Override	protected void initBinder(HttpServletRequest request, ServletRequestDataBinder binder) throws Exception {		super.initBinder(request, binder);				binder.setAllowedFields(new String[] {				"feedUrl"		});	}		@Override	protected ModelAndView onSubmit(Object command, BindException errors) throws Exception {		Feed feed = (Feed) command;			try {			feed = feedService.subscribe(userService.getCurrent(), feed.getFeedUrl());		} catch (InvalidFeedException e) {			errors.reject("subscribe.url.invalid");						return new ModelAndView(getFormView(), errors.getModel());		}				return new ModelAndView("redirect:feed.html?feedId=" + feed.getId());	}		@Override	protected Map referenceData(HttpServletRequest request) throws Exception {		Map<String, Object> model = new HashMap<String, Object>();				User user = userService.getCurrent();		model.put("unreadEntries", user != null ? entryService.getUnread(user).size() : 0);				return model;	}	}