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1 package org.springframework.samples.countries.web;
2
3 import java.util.List  ;
4 import java.util.Locale ;
5
6 import javax.servlet.ServletException ;
7 import javax.servlet.http.HttpServletRequest ;
8 import javax.servlet.http.HttpServletResponse ;
9
10 import org.springframework.beans.support.PagedListSourceProvider;
11 import org.springframework.beans.support.RefreshablePagedListHolder;
12 import org.springframework.samples.countries.Country;
13 import org.springframework.samples.countries.CountryService;
14 import org.springframework.validation.BindException;
15 import org.springframework.web.bind.BindUtils;
16 import org.springframework.web.servlet.ModelAndView;
17 import org.springframework.web.servlet.mvc.multiaction.MultiActionController;
18 import org.springframework.web.servlet.support.RequestContextUtils;
19
20
24 public class CountriesController extends MultiActionController {
25
26 private static final String COUNTRIES_ATTR = "countries";
27 private static final String HOME_VIEW = "homeView";
28 private static final String CONFIG_VIEW = "configView";
29 private static final String MAIN_VIEW = "countries_mainView";
30 private static final String DETAIL_VIEW = "countries_detailView";
31 private static final String EXCEL_VIEW = "countries_excelView";
32 private static final String PDF_VIEW = "countries_pdfView";
33
34 private CountryService countryService;
35
36 private String homeView = HOME_VIEW;
37 private String configView = CONFIG_VIEW;
38 private String mainView = MAIN_VIEW;
39 private String detailView = DETAIL_VIEW;
40 private String excelView = EXCEL_VIEW;
41 private String pdfView = PDF_VIEW;
42
43
44 public void setCountryService(CountryService countryService) {
45 this.countryService = countryService;
46 }
47
48 public void setConfigView(String view) {
49 this.configView = view;
50 }
51
52 public void setDetailView(String view) {
53 this.detailView = view;
54 }
55
56 public void setExcelView(String view) {
57 this.excelView = view;
58 }
59
60 public void setHomeView(String view) {
61 this.homeView = view;
62 }
63
64 public void setMainView(String view) {
65 this.mainView = view;
66 }
67
68 public void setPdfView(String view) {
69 this.pdfView = view;
70 }
71
72
73
79 public ModelAndView handleHome(HttpServletRequest request, HttpServletResponse response) throws ServletException {
80 return new ModelAndView(homeView);
81 }
82
83
89 public ModelAndView handleConfig(HttpServletRequest request, HttpServletResponse response) throws ServletException {
90 return new ModelAndView(configView);
91 }
92
93
99 public ModelAndView handleMain(HttpServletRequest request, HttpServletResponse response) throws ServletException {
100 RefreshablePagedListHolder listHolder =
101 (RefreshablePagedListHolder) request.getSession(true).getAttribute(COUNTRIES_ATTR);
102 if (null == listHolder) {
103 listHolder = new RefreshablePagedListHolder();
104 listHolder.setSourceProvider(new CountriesProvider());
105 listHolder.setFilter(new CountriesFilter());
106 request.getSession(true).setAttribute(COUNTRIES_ATTR, listHolder);
107 }
108 BindException ex = BindUtils.bind(request, listHolder, "countries");
109 listHolder.setLocale(RequestContextUtils.getLocale(request));
110 boolean forceRefresh = request.getParameter("forceRefresh") != null;
111 listHolder.refresh(forceRefresh);
112 return new ModelAndView(mainView, ex.getModel());
113 }
114
115
121 public ModelAndView handleDetail(HttpServletRequest request, HttpServletResponse response) throws ServletException {
122 Locale locale = RequestContextUtils.getLocale(request);
123 Country country = this.countryService.getCountry(request.getParameter("code"), locale);
124 return new ModelAndView(this.detailView, "country", country);
125 }
126
127
133 public ModelAndView handleExcel(HttpServletRequest request, HttpServletResponse response) throws ServletException {
134 RefreshablePagedListHolder listHolder =
135 (RefreshablePagedListHolder) request.getSession(true).getAttribute(COUNTRIES_ATTR);
136 if (listHolder == null) {
137 throw new ServletException ("No countries list found in session");
138 }
139 return new ModelAndView(this.excelView, "countries", listHolder);
140 }
141
142
148 public ModelAndView handlePdf(HttpServletRequest request, HttpServletResponse response) throws ServletException {
149 RefreshablePagedListHolder listHolder =
150 (RefreshablePagedListHolder) request.getSession(true).getAttribute(COUNTRIES_ATTR);
151 if (listHolder == null) {
152 throw new ServletException ("No countries list found in session");
153 }
154 return new ModelAndView(this.pdfView, "countries", listHolder);
155 }
156
157
158 private class CountriesProvider implements PagedListSourceProvider {
159
160 public List loadList(Locale loc, Object filter) {
161 CountriesFilter cf = (CountriesFilter) filter;
162 return countryService.getFilteredCountries(cf.getName(), cf.getCode(), loc);
163 }
164 }
165
166 }
167 |
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