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24 package org.riotfamily.riot.editor.ui;
25
26 import java.io.StringWriter  ;
27 import java.util.HashMap ;
28 import java.util.Map ;
29
30 import javax.servlet.http.HttpServletRequest ;
31 import javax.servlet.http.HttpServletResponse ;
32
33 import org.riotfamily.common.collection.FlatMap;
34 import org.riotfamily.common.util.ResourceUtils;
35 import org.riotfamily.common.web.view.freemarker.ResourceTemplateLoader;
36 import org.riotfamily.riot.editor.EditorConstants;
37 import org.riotfamily.riot.editor.EditorDefinition;
38 import org.riotfamily.riot.editor.EditorDefinitionUtils;
39 import org.riotfamily.riot.editor.EditorRepository;
40 import org.riotfamily.riot.editor.ListDefinition;
41 import org.riotfamily.riot.editor.ViewReference;
42 import org.riotfamily.riot.list.ui.ListService;
43 import org.riotfamily.riot.list.ui.ListSession;
44 import org.springframework.beans.factory.InitializingBean;
45 import org.springframework.context.ResourceLoaderAware;
46 import org.springframework.core.io.ResourceLoader;
47 import org.springframework.util.Assert;
48 import org.springframework.web.servlet.ModelAndView;
49 import org.springframework.web.servlet.mvc.Controller;
50
51 import freemarker.template.Configuration;
52
53 public class ViewController implements Controller,
54 ResourceLoaderAware, InitializingBean {
55
56 private EditorRepository editorRepository;
57
58 private ResourceLoader resourceLoader;
59
60 private ListService listService;
61
62 private String viewName = ResourceUtils.getPath(
63 ViewController.class, "ReadOnlyView.ftl");
64
65 private Configuration configuration;
66
67 public ViewController(EditorRepository repository,
68 ListService listService) {
69
70 this.editorRepository = repository;
71 this.listService = listService;
72 }
73
74 public void setViewName(String viewName) {
75 this.viewName = viewName;
76 }
77
78 public void setResourceLoader(ResourceLoader resourceLoader) {
79 this.resourceLoader = resourceLoader;
80 }
81
82 public void afterPropertiesSet() throws Exception {
83 configuration = new Configuration();
84 ResourceTemplateLoader loader = new ResourceTemplateLoader();
85 loader.setResourceLoader(resourceLoader);
86 configuration.setTemplateLoader(loader);
87 }
88
89 public final ModelAndView handleRequest(HttpServletRequest request,
90 HttpServletResponse response) throws Exception {
91
92 String editorId = (String ) request.getAttribute(EditorConstants.EDITOR_ID);
93 Assert.notNull(editorId, "No editorId in request scope");
94
95 String objectId = (String ) request.getAttribute(EditorConstants.OBJECT_ID);
96 Assert.notNull(objectId, "No objectId in request scope");
97
98 EditorDefinition editorDef = editorRepository.getEditorDefinition(editorId);
99 Assert.notNull(editorDef, "No such EditorDefinition: " + editorId);
100
101 StringWriter sw = new StringWriter ();
102
103 Object object = EditorDefinitionUtils.loadBean(editorDef, objectId);
104 Map model = new FlatMap();
105 model.put("object", object);
106 model.put("request", request);
107 try {
108 String template = ((ViewReference) editorDef).getTemplate();
109 configuration.getTemplate(template).process(model, sw);
110 }
111 catch (Exception e) {
112 throw new RuntimeException (e);
113 }
114
115 model = new HashMap ();
116 model.put(EditorConstants.EDITOR_ID, editorId);
117 model.put(EditorConstants.OBJECT_ID, objectId);
118 model.put("form", sw.toString());
119
120 ListDefinition parentListDef = EditorDefinitionUtils
121 .getParentListDefinition(editorDef);
122
123 if (parentListDef != null) {
124 ListSession session = listService.getOrCreateListSession(
125 parentListDef.getId(),
126 EditorDefinitionUtils.getParentId(editorDef, object),
127 null, request);
128
129 model.put("listKey", session.getKey());
130 }
131
132 return new ModelAndView(viewName, model);
133 }
134
135 public static String getUrl(String editorId, String objectId) {
136 StringBuffer sb = new StringBuffer ();
137 sb.append("/view/").append(editorId);
138 if (objectId != null) {
139 sb.append('/').append(objectId);
140 }
141 return sb.toString();
142 }
143
144 }
145 |
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