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16 package org.apache.cocoon.faces.context;
17
18 import javax.faces.FactoryFinder;
19 import javax.faces.application.Application;
20 import javax.faces.application.ApplicationFactory;
21 import javax.faces.application.FacesMessage;
22 import javax.faces.application.FacesMessage.Severity;
23 import javax.faces.component.UIViewRoot;
24 import javax.faces.context.ExternalContext;
25 import javax.faces.context.FacesContext;
26 import javax.faces.context.ResponseStream;
27 import javax.faces.context.ResponseWriter;
28 import javax.faces.render.RenderKit;
29 import javax.faces.render.RenderKitFactory;
30 import java.util.ArrayList  ;
31 import java.util.Collections ;
32 import java.util.HashMap ;
33 import java.util.Iterator ;
34 import java.util.List ;
35 import java.util.Map ;
36
37
43 public class FacesContextImpl extends FacesContext {
44 private ExternalContextImpl extContext;
45
46 private boolean released;
47 private boolean renderResponse;
48 private boolean responseComplete;
49
50 private Application application;
51 private UIViewRoot viewRoot;
52 private Map messages;
53
54 private ResponseStream responseStream;
55 private ResponseWriter responseWriter;
56
57
58 FacesContextImpl(ExternalContextImpl extContext) {
59 this.extContext = extContext;
60 FacesContext.setCurrentInstance(this);
61 }
62
63 private void checkReleased() {
64 if (released) {
65 throw new IllegalStateException ("Context is released.");
66 }
67 }
68
69 public Application getApplication() {
70 checkReleased();
71
72 if (application == null) {
73 ApplicationFactory aFactory = (ApplicationFactory) FactoryFinder.getFactory(FactoryFinder.APPLICATION_FACTORY);
74 this.application = aFactory.getApplication();
75 }
76
77 return this.application;
78 }
79
80 public Iterator getClientIdsWithMessages() {
81 checkReleased();
82
83 if (this.messages == null) {
84 return Collections.EMPTY_LIST.iterator();
85 } else {
86 return this.messages.keySet().iterator();
87 }
88 }
89
90 public ExternalContext getExternalContext() {
91 checkReleased();
92 return this.extContext;
93 }
94
95 public Severity getMaximumSeverity() {
96 throw new UnsupportedOperationException ();
97 }
98
99 public Iterator getMessages() {
100 checkReleased();
101 if (this.messages == null) {
102 return Collections.EMPTY_LIST.iterator();
103 }
104
105 List messages = new ArrayList ();
106 for (Iterator i = this.messages.values().iterator(); i.hasNext();) {
107 final List list = (List ) i.next();
108 messages.addAll(list);
109 }
110
111 if (messages.size() > 0) {
112 return messages.iterator();
113 }
114
115 return Collections.EMPTY_LIST.iterator();
116 }
117
118 public Iterator getMessages(String clientID) {
119 checkReleased();
120 if (this.messages != null) {
121 final List list = (List ) this.messages.get(clientID);
122 if (list != null) {
123 return list.iterator();
124 }
125 }
126
127 return Collections.EMPTY_LIST.iterator();
128 }
129
130 public RenderKit getRenderKit() {
131 checkReleased();
132
133 UIViewRoot viewRoot = getViewRoot();
134 if (viewRoot == null) {
135 return null;
136 }
137
138 String renderKitId = viewRoot.getRenderKitId();
139 if (renderKitId == null) {
140 return null;
141 } else {
142 RenderKitFactory rkFactory = (RenderKitFactory) FactoryFinder.getFactory(FactoryFinder.RENDER_KIT_FACTORY);
143 return rkFactory.getRenderKit(this, renderKitId);
144 }
145 }
146
147 public boolean getRenderResponse() {
148 checkReleased();
149 return this.renderResponse;
150 }
151
152 public boolean getResponseComplete() {
153 checkReleased();
154 return this.responseComplete;
155 }
156
157 public ResponseStream getResponseStream() {
158 checkReleased();
159 return this.responseStream;
160 }
161
162 public void setResponseStream(ResponseStream responseStream) {
163 checkReleased();
164 if (responseStream == null) {
165 throw new NullPointerException ("ResponseStream can't be null.");
166 }
167
168 this.responseStream = responseStream;
169 }
170
171 public ResponseWriter getResponseWriter() {
172 checkReleased();
173 return this.responseWriter;
174 }
175
176 public void setResponseWriter(ResponseWriter responseWriter) {
177 checkReleased();
178 if (responseWriter == null) {
179 throw new NullPointerException ("ResponseWriter can't be null.");
180 }
181
182 this.responseWriter = responseWriter;
183 }
184
185 public UIViewRoot getViewRoot() {
186 checkReleased();
187 return this.viewRoot;
188 }
189
190 public void setViewRoot(UIViewRoot viewRoot) {
191 checkReleased();
192 this.viewRoot = viewRoot;
193 }
194
195 public void addMessage(String clientID, FacesMessage message) {
196 checkReleased();
197 if (message == null) {
198 throw new NullPointerException ("Message can't be null");
199 }
200
201 if (messages == null) {
202 messages = new HashMap ();
203 }
204
205 List list = (List ) messages.get(clientID);
206 if (list == null) {
207 list = new ArrayList ();
208 messages.put(clientID, list);
209 }
210
211 list.add(message);
212 }
213
214 public void release() {
215 this.released = true;
216 this.extContext = null;
217
218 FacesContext.setCurrentInstance(null);
219
220 this.application = null;
221 this.viewRoot = null;
222 this.messages = null;
223
224 this.responseStream = null;
225 this.responseWriter = null;
226 }
227
228 public void renderResponse() {
229 checkReleased();
230 this.renderResponse = true;
231 }
232
233 public void responseComplete() {
234 checkReleased();
235 this.responseComplete = true;
236 }
237 }
238 |
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