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16 package org.apache.cocoon.portal.impl;
17
18 import java.io.UnsupportedEncodingException  ;
19 import java.util.Iterator ;
20 import java.util.List ;
21
22 import org.apache.cocoon.portal.event.Event;
23 import org.apache.cocoon.portal.event.impl.ChangeAspectDataEvent;
24 import org.apache.cocoon.portal.layout.CompositeLayout;
25 import org.apache.cocoon.portal.layout.Item;
26 import org.apache.cocoon.portal.layout.NamedItem;
27 import org.apache.cocoon.util.NetUtils;
28 import org.apache.avalon.framework.service.ServiceException;
29 import org.apache.avalon.framework.service.ServiceManager;
30
31
39 public class PageLabelLinkService extends DefaultLinkService {
40
41 protected String apectName;
42
43
44 protected PageLabelManager labelManager;
45
46
49 public void service(ServiceManager manager) throws ServiceException {
50 super.service(manager);
51 this.labelManager = (PageLabelManager)this.manager.lookup(PageLabelManager.ROLE);
52 }
53
54
60 public String getLinkURI(Event event) {
61 return getLinkURI(event, null);
62 }
63
64
71 public String getLinkURI(Event event, Boolean secure) {
72 if (event == null) {
73 return this.getRefreshLinkURI(secure);
74 }
75 if (this.labelManager == null) {
76 return super.getLinkURI(event);
77 }
78
79 String requestParameterName = this.labelManager.getRequestParameterName();
80
81 if (event instanceof ChangeAspectDataEvent &&
82 ((ChangeAspectDataEvent) event).getTarget() instanceof CompositeLayout) {
83
84 ChangeAspectDataEvent e = (ChangeAspectDataEvent)event;
85 CompositeLayout layout = (CompositeLayout)e.getTarget();
86 int i = ((Integer )e.getData()).intValue();
87
88 Item item = layout.getItem(i);
89 if (item instanceof NamedItem) {
90 StringBuffer key = new StringBuffer ("");
91 getKey(item, key);
92
93 if (this.labelManager.getPageLabelEvents(key.toString()) != null) {
94 final LinkInfo info = this.getInfo();
95 boolean hasParams = info.hasParameters();
96 final StringBuffer buffer = new StringBuffer (info.getBase(secure));
97 if (hasParams) {
98 buffer.append('&');
99 }
100 else {
101 buffer.append('?');
102 }
103 try {
104 String encodedKey = NetUtils.encode(key.toString(), "utf-8");
105 buffer.append(requestParameterName).append('=').append(encodedKey);
106 } catch (UnsupportedEncodingException uee) {
107 }
109 return buffer.toString();
110 }
111 }
112 }
113
114 String label = this.labelManager.getCurrentLabel();
115
116 return getLink(super.getLinkURI(event, secure), requestParameterName, label);
117 }
118
119
125 public String getLinkURI(List events) {
126 return getLinkURI(events, null);
127 }
128
129
135 public String getLinkURI(List events, Boolean secure) {
136 if (events == null || events.size() == 0) {
137 return this.getRefreshLinkURI(secure);
138 }
139 if (this.labelManager == null) {
140 return super.getLinkURI(events);
141 }
142
143 String requestParameterName = this.labelManager.getRequestParameterName();
144 final LinkInfo info = this.getInfo();
145 final StringBuffer buffer = new StringBuffer (info.getBase(secure));
146 boolean hasParams = info.hasParameters();
147 Iterator iter = events.iterator();
148 StringBuffer value = new StringBuffer ("");
149
150 while (iter.hasNext())
151 {
152 Event event = (Event)iter.next();
153
154 if (event instanceof ChangeAspectDataEvent &&
155 ((ChangeAspectDataEvent) event).getTarget() instanceof CompositeLayout) {
156
157 ChangeAspectDataEvent e = (ChangeAspectDataEvent) event;
158 CompositeLayout layout = (CompositeLayout) e.getTarget();
159 int i = ((Integer ) e.getData()).intValue();
160
161 Item item = layout.getItem(i);
162 if (value.length() > 0) {
163 value.append('.');
164 }
165 if (item instanceof NamedItem) {
166 if(value.length()>0) {
167 value.append(((NamedItem)item).getName());
168 }
169 else {
170 StringBuffer key = new StringBuffer ("");
171 getKey(item, key);
172 value.append(key.toString());
173 }
174 }
175 else {
176 value.append(Integer.toString(i));
177 }
178 }
179 else {
180 String label = this.labelManager.getCurrentLabel();
181
182 return getLink(super.getLinkURI(events, secure), requestParameterName, label);
183 }
184 }
185
186 if (value.length() > 0 && this.labelManager.getPageLabelEvents(value.toString()) != null) {
187 if (hasParams) {
188 buffer.append('&');
189 }
190 else {
191 buffer.append('?');
192 }
193 try {
194 buffer.append(requestParameterName).append('=')
195 .append(NetUtils.encode(value.toString(), "utf-8"));
196 } catch (UnsupportedEncodingException uee) {
197 }
199
200 return buffer.toString();
201 }
202
203 String label = this.labelManager.getCurrentLabel();
204
205 return getLink(super.getLinkURI(events), requestParameterName, label);
206 }
207
208
211 public void dispose() {
212 if (this.manager != null) {
213 if (this.labelManager != null) {
214 this.manager.release(this.labelManager);
215 this.labelManager = null;
216 }
217 }
218 super.dispose();
219 }
220
221
226 private void getKey(Item item, StringBuffer key) {
227 CompositeLayout parentLayout = item.getParent();
228 Item parentItem = parentLayout.getParent();
229
230 if (parentItem != null) {
231 getKey(parentItem, key);
232 }
233
234 if (key.length() > 0) {
235 key.append('.');
236 }
237 if (item instanceof NamedItem) {
238 key.append(((NamedItem) item).getName());
239 }
240 else {
241 key.append(parentLayout.getItems().indexOf(item));
242 }
243 }
244
245
252 private String getLink(String link, String parmName, String label)
253 {
254 if (label == null) {
255 return link;
256 }
257 StringBuffer uri = new StringBuffer (link);
258 if (link.indexOf('?') >= 0) {
259 uri.append('&');
260 } else {
261 uri.append('?');
262 }
263 try {
264 String encodedLabel = NetUtils.encode(label, "utf-8");
265 uri.append(parmName).append('=').append(encodedLabel);
266 } catch (UnsupportedEncodingException uee) {
267 }
269 return uri.toString();
270 }
271 }
272 |
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