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16 package org.apache.cocoon.portal.impl;
17
18 import java.util.ArrayList  ;
19 import java.util.List ;
20 import java.util.Map ;
21
22 import org.apache.avalon.framework.context.Context;
23 import org.apache.avalon.framework.context.ContextException;
24 import org.apache.avalon.framework.context.Contextualizable;
25 import org.apache.avalon.framework.logger.AbstractLogEnabled;
26 import org.apache.avalon.framework.service.ServiceException;
27 import org.apache.avalon.framework.service.ServiceManager;
28 import org.apache.avalon.framework.service.Serviceable;
29 import org.apache.avalon.framework.thread.ThreadSafe;
30 import org.apache.avalon.framework.CascadingRuntimeException;
31 import org.apache.avalon.framework.component.Component;
32 import org.apache.avalon.framework.configuration.Configurable;
33 import org.apache.avalon.framework.configuration.Configuration;
34 import org.apache.cocoon.portal.PortalService;
35 import org.apache.cocoon.portal.layout.Layout;
36 import org.apache.cocoon.portal.layout.CompositeLayout;
37 import org.apache.cocoon.portal.layout.Item;
38 import org.apache.cocoon.portal.layout.NamedItem;
39 import org.apache.cocoon.portal.event.impl.ChangeAspectDataEvent;
40 import org.apache.cocoon.util.HashMap;
41 import org.apache.cocoon.environment.Request;
42 import org.apache.cocoon.environment.ObjectModelHelper;
43 import org.apache.cocoon.components.ContextHelper;
44
45
57 public class PageLabelManager
58 extends AbstractLogEnabled
59 implements ThreadSafe, Serviceable, Configurable, Contextualizable, Component {
60
61 public static final String ROLE = PageLabelManager.class.getName();
62
63
64 protected ServiceManager manager;
65
66 protected Context context;
67 protected String aspectName = null;
68 private String requestParameterName;
69 private boolean nonStickyTabs;
70 private boolean marshallEvents;
71
72 protected static final String LABEL_ARRAY = PageLabelManager.class.getName() + "A";
73 protected static final String LABEL_MAP = PageLabelManager.class.getName() + "M";
74 protected static final String EVENT_MAP = PageLabelManager.class.getName() + "E";
75 private static final String DEFAULT_REQUEST_PARAMETER_NAME = "pageLabel";
76
77
78
81 public void service(ServiceManager manager) throws ServiceException {
82 this.manager = manager;
83 }
84
85
88 public void configure(Configuration config)
89 {
90 this.requestParameterName =
91 config.getChild("parameterName").getValue(DEFAULT_REQUEST_PARAMETER_NAME);
92 this.aspectName = config.getChild("aspectName").getValue("tab");
93 this.nonStickyTabs =
94 Boolean.valueOf(config.getChild("nonStickyTabs").getValue("false")).booleanValue();
95 this.marshallEvents =
96 Boolean.valueOf(config.getChild("marshallEvents").getValue("false")).booleanValue();
97 }
98
99
102 public void contextualize(Context context) throws ContextException {
103 this.context = context;
104 }
105
106
110 public String getCurrentLabel() {
111 String [] labels = getLabels();
112
113 return labels[0];
114 }
115
116
120 public String getPreviousLabel() {
121 String [] labels = getLabels();
122
123 return labels[1];
124 }
125
126
130 public String setCurrentLabel() {
131 final Request request =
132 ObjectModelHelper.getRequest(ContextHelper.getObjectModel(this.context));
133 String value = request.getParameter(this.requestParameterName);
134 String [] labels = getLabels();
135
136 if (value != null) {
137 labels[1] = labels[0];
138 labels[0] = value;
139 }
140 return labels[0];
141 }
142
143
147 public String getRequestParameterName() {
148 return this.requestParameterName;
149 }
150
151
152
156 public Map getPageEventMap()
157 {
158 PortalService service = null;
159 try {
160 service = (PortalService) this.manager.lookup(PortalService.ROLE);
161 Map map = (Map ) service.getAttribute(EVENT_MAP);
162 if (null == map) {
163 map = new HashMap();
164 service.setAttribute(EVENT_MAP, map);
165 }
166
167 return map;
168 }
169 catch (ServiceException ce) {
170 throw new CascadingRuntimeException("Unable to lookup component.", ce);
171 }
172 finally {
173 this.manager.release(service);
174 }
175 }
176
177
184 public List getPageLabelEvents(String pageLabel) {
185 PortalService service = null;
186 try {
187 service = (PortalService) this.manager.lookup(PortalService.ROLE);
188 Map map = (Map ) service.getAttribute(LABEL_MAP);
189 if (null == map) {
190 map = initializeLabels(service);
191 service.setAttribute(LABEL_MAP, map);
192 }
193
194 List list = (List ) map.get(pageLabel);
195
196 if (list == null) {
197 list = new ArrayList ();
198 map.put(pageLabel, list);
199 }
200
201 return list;
202 }
203 catch (ServiceException ce) {
204 throw new CascadingRuntimeException("Unable to lookup component.", ce);
205 }
206 finally {
207 this.manager.release(service);
208 }
209 }
210
211
214 public boolean isMarshallEvents() {
215 return this.marshallEvents;
216 }
217
218
221 private String [] getLabels() {
222 PortalService service = null;
223 try {
224 service = (PortalService) this.manager.lookup(PortalService.ROLE);
225 String [] labels = (String []) service.getAttribute(LABEL_ARRAY);
226 if (null == labels) {
227 labels = new String [2];
228 service.setAttribute(LABEL_ARRAY, labels);
229 }
230 return labels;
231 }
232 catch (ServiceException ce) {
233 throw new CascadingRuntimeException("Unable to lookup component.", ce);
234 }
235 finally {
236 this.manager.release(service);
237 }
238 }
239
240
246 private Map initializeLabels(PortalService service) {
247 Map map = new HashMap();
248
249 Layout portalLayout = service.getEntryLayout(null);
250 if (portalLayout == null) {
251 portalLayout =
252 service.getComponentManager().getProfileManager().getPortalLayout(null, null);
253 }
254
255 if (portalLayout instanceof CompositeLayout) {
256 populate((CompositeLayout) portalLayout, map, "", new ArrayList ());
257 }
258
259 return map;
260 }
261
262
263
271 private List populate(CompositeLayout layout, Map map, String name, List parentEvents) {
272 List lhList = null;
273 for (int j = 0; j < layout.getSize(); j++) {
274 Item tab = layout.getItem(j);
275 ChangeAspectDataEvent event =
276 new ChangeAspectDataEvent(layout, this.aspectName, new Integer (j));
277 StringBuffer label = new StringBuffer (name);
278 if (label.length() > 0) {
279 label.append(".");
280 }
281 label.append((tab instanceof NamedItem) ? ((NamedItem) tab).getName() :
282 Integer.toString(j));
283 List events = new ArrayList (parentEvents);
284 events.add(event);
285 Layout child = tab.getLayout();
286 List allEvents = null;
287 if (child != null && child instanceof CompositeLayout) {
288 allEvents = populate((CompositeLayout) child, map, label.toString(), events);
289 }
290 if (this.nonStickyTabs) {
291 if (lhList == null)
294 {
295 if (allEvents != null)
296 {
297 lhList = allEvents;
298 }
299 else
300 {
301 lhList = events;
302 }
303 }
304 if (allEvents != null) {
305 map.put(label.toString(), allEvents);
306 } else {
307 map.put(label.toString(), events);
308 }
309 } else {
310 map.put(label.toString(), events);
311 }
312 }
313 return lhList;
314 }
315 } |
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