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16 package org.apache.cocoon.portal.coplet.adapter.impl;
17
18 import java.io.UnsupportedEncodingException  ;
19 import java.util.Enumeration ;
20 import java.util.Map ;
21
22 import org.apache.avalon.framework.service.ServiceException;
23 import org.apache.cocoon.ProcessingException;
24 import org.apache.cocoon.components.ContextHelper;
25 import org.apache.cocoon.environment.ObjectModelHelper;
26 import org.apache.cocoon.environment.Request;
27 import org.apache.cocoon.portal.coplet.CopletData;
28 import org.apache.cocoon.portal.coplet.CopletFactory;
29 import org.apache.cocoon.portal.coplet.CopletInstanceData;
30 import org.apache.cocoon.portal.event.CopletInstanceEvent;
31 import org.apache.cocoon.portal.event.impl.CopletLinkEvent;
32 import org.apache.cocoon.portal.layout.CompositeLayout;
33 import org.apache.cocoon.portal.layout.Item;
34 import org.apache.cocoon.portal.layout.LayoutFactory;
35 import org.apache.cocoon.portal.layout.NamedItem;
36 import org.apache.cocoon.portal.layout.impl.CopletLayout;
37 import org.apache.cocoon.portal.profile.ProfileManager;
38 import org.apache.cocoon.portal.transformation.ProxyTransformer;
39 import org.apache.cocoon.util.NetUtils;
40 import org.apache.cocoon.xml.XMLUtils;
41 import org.xml.sax.ContentHandler ;
42 import org.xml.sax.SAXException ;
43
44
52 public class ApplicationCopletAdapter extends CachingURICopletAdapter {
53
54
57 public void streamContent(final CopletInstanceData coplet,
58 final String uri,
59 final ContentHandler contentHandler)
60 throws SAXException {
61 try {
62 super.streamContent(coplet, uri, contentHandler);
63 } catch (SAXException se) {
64 this.getLogger().error(
65 "ApplicationCopletAdapter: Exception while getting coplet resource",
66 se);
67
68 this.renderErrorContent(coplet, contentHandler);
69 }
70 }
71
72
78 public void handleCopletInstanceEvent(CopletInstanceEvent e) {
79 super.handleCopletInstanceEvent(e);
80
81 if ( e instanceof CopletLinkEvent ) {
82 CopletLinkEvent event = (CopletLinkEvent) e;
83 CopletInstanceData coplet = (CopletInstanceData) event.getTarget();
84 String link = event.getLink();
85
86 if ("createNewCopletInstance".equals(link)) {
87 try {
88 createNewInstance(coplet);
89 } catch (ProcessingException ex) {
90 getLogger().error("Could not create new coplet instance", ex);
91 }
92 } else {
93 String linkValue = event.getLink();
96 Boolean addParams = (Boolean )this.getConfiguration(coplet, "appendParameters", Boolean.FALSE);
97 if ( addParams.booleanValue() ) {
98 final StringBuffer uri = new StringBuffer (event.getLink());
99 boolean hasParams = (uri.toString().indexOf("?") != -1);
100
101 final Map objectModel = ContextHelper.getObjectModel(this.context);
103 final Request r = ObjectModelHelper.getRequest(objectModel);
104 final Enumeration params = r.getParameterNames();
105 while (params.hasMoreElements()) {
106 final String name = (String )params.nextElement();
107 if (!name.startsWith("cocoon-portal-")) {
108 final String [] values = r.getParameterValues(name);
109 for(int i = 0; i < values.length; i++) {
110 if ( hasParams ) {
111 uri.append('&');
112 } else {
113 uri.append('?');
114 hasParams = true;
115 }
116 uri.append(name);
117 uri.append('=');
118 try {
119 uri.append(NetUtils.decode(values[i], "utf-8"));
120 } catch (UnsupportedEncodingException uee) {
121 }
123 }
124 }
125 }
126 linkValue = uri.toString();
127 }
128 coplet.setTemporaryAttribute(ProxyTransformer.LINK, linkValue);
129 }
130 }
131 }
132
133
139 private void createNewInstance(CopletInstanceData coplet)
140 throws ProcessingException {
141 ProfileManager profileManager = null;
142 try {
143 profileManager =
144 (ProfileManager) this.manager.lookup(ProfileManager.ROLE);
145
146 CopletData copletData = coplet.getCopletData();
147
148 LayoutFactory lfac =
149 (LayoutFactory) this.manager.lookup(LayoutFactory.ROLE);
150
151 CopletLayout copletLayout =
152 (CopletLayout) lfac.newInstance("coplet");
153
154 CopletFactory cfac =
155 (CopletFactory) manager.lookup(CopletFactory.ROLE);
156
157 CopletInstanceData newCoplet = cfac.newInstance(copletData);
158
159 copletLayout.setCopletInstanceData(newCoplet);
160 profileManager.register(copletLayout);
161
162 NamedItem newItem = new NamedItem();
163 newItem.setLayout(copletLayout);
164
165 CompositeLayout tabLayout =
166 (CompositeLayout) profileManager.getPortalLayout(
167 "portalApplications", null);
168
169 newItem.setName(getNewInstanceTabName(tabLayout));
170 tabLayout.addItem(newItem);
171 } catch (ServiceException ce) {
172 throw new ProcessingException(
173 "Unable to lookup profile manager.",
174 ce);
175 } catch (Exception e) {
176 throw new ProcessingException(e);
177 } finally {
178 this.manager.release(profileManager);
179 }
180 }
181
182
186 private String getNewInstanceTabName(CompositeLayout layout) {
187 Integer data = (Integer ) layout.getAspectData("tab");
188 Item selectedItem = (NamedItem) layout.getItem(data.intValue());
189
190 if (selectedItem instanceof NamedItem) {
191 return ((NamedItem) selectedItem).getName();
192 }
193 return ("New");
194 }
195
196
203 protected boolean renderErrorContent(CopletInstanceData coplet,
204 ContentHandler handler)
205 throws SAXException {
206 handler.startDocument();
207 XMLUtils.startElement(handler, "p");
208 XMLUtils.data(
209 handler,
210 "ApplicationCopletAdapter: Can't get content for coplet "
211 + coplet.getId()
212 + ". Look up the logs.");
213 XMLUtils.endElement(handler, "p");
214 handler.endDocument();
215
216 return true;
217 }
218
219 }
220 |
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