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16 package org.apache.cocoon.portal.coplet.adapter.impl;
17
18 import java.io.IOException  ;
19 import java.util.ArrayList ;
20 import java.util.HashMap ;
21 import java.util.List ;
22 import java.util.Map ;
23
24 import org.apache.avalon.framework.activity.Disposable;
25 import org.apache.avalon.framework.activity.Initializable;
26 import org.apache.avalon.framework.context.Context;
27 import org.apache.avalon.framework.context.ContextException;
28 import org.apache.avalon.framework.context.Contextualizable;
29 import org.apache.avalon.framework.service.ServiceException;
30 import org.apache.avalon.framework.service.ServiceManager;
31 import org.apache.cocoon.ProcessingException;
32 import org.apache.cocoon.components.ContextHelper;
33 import org.apache.cocoon.components.notification.Notifying;
34 import org.apache.cocoon.components.notification.NotifyingBuilder;
35 import org.apache.cocoon.components.source.SourceUtil;
36 import org.apache.cocoon.environment.ObjectModelHelper;
37 import org.apache.cocoon.portal.Constants;
38 import org.apache.cocoon.portal.PortalService;
39 import org.apache.cocoon.portal.coplet.CopletInstanceData;
40 import org.apache.cocoon.portal.event.CopletInstanceEvent;
41 import org.apache.cocoon.portal.event.EventManager;
42 import org.apache.cocoon.portal.event.Receiver;
43 import org.apache.excalibur.source.Source;
44 import org.apache.excalibur.source.SourceResolver;
45 import org.xml.sax.ContentHandler ;
46 import org.xml.sax.SAXException ;
47
48
56 public class URICopletAdapter
57 extends AbstractCopletAdapter
58 implements Disposable, Receiver, Initializable, Contextualizable {
59
60
61 protected SourceResolver resolver;
62
63
64 protected Context context;
65
66
69 public void contextualize(Context context) throws ContextException {
70 this.context = context;
71 }
72
73
76 public void service(ServiceManager manager) throws ServiceException {
77 super.service( manager );
78 this.resolver = (SourceResolver)this.manager.lookup(SourceResolver.ROLE);
79 }
80
81
84 public void streamContent(CopletInstanceData coplet, ContentHandler contentHandler)
85 throws SAXException {
86 final String uri = (String )coplet.getCopletData().getAttribute("uri");
87 if ( uri == null ) {
88 throw new SAXException ("No URI for coplet data "+coplet.getCopletData().getId()+" found.");
89 }
90 this.streamContent( coplet, uri, contentHandler);
91 }
92
93 public void streamContent(final CopletInstanceData coplet,
94 final String uri,
95 final ContentHandler contentHandler)
96 throws SAXException {
97 Source copletSource = null;
98 PortalService portalService = null;
99 try {
100 if (uri.startsWith("cocoon:")) {
101 portalService = (PortalService)this.manager.lookup(PortalService.ROLE);
102
103 Boolean handlePars = (Boolean )this.getConfiguration( coplet, "handleParameters", Boolean.FALSE);
104
105 String sourceUri = uri;
106
107 if ( handlePars.booleanValue() ) {
108 List list = (List ) portalService.getTemporaryAttribute(URICopletAdapter.class.getName());
109 if ( list != null && list.contains( coplet )) {
110 if ( uri.startsWith("cocoon:raw:") ) {
112 sourceUri = "cocoon:" + uri.substring(11);
113 }
114 } else {
115 if (!uri.startsWith("cocoon:raw:") ) {
117 sourceUri = "cocoon:raw:" + uri.substring(7);
118 }
119 }
120 }
121
122 HashMap par = new HashMap ();
123 par.put(Constants.PORTAL_NAME_KEY, portalService.getPortalName());
124 par.put(Constants.COPLET_ID_KEY, coplet.getId());
125
126 copletSource = this.resolver.resolveURI(sourceUri, null, par);
127 } else {
128 copletSource = this.resolver.resolveURI(uri);
129 }
130 SourceUtil.toSAX(copletSource, contentHandler);
131 } catch (IOException ioe) {
132 throw new SAXException ("IOException", ioe);
133 } catch (ProcessingException pe) {
134 throw new SAXException ("ProcessingException", pe);
135 } catch (ServiceException ce) {
136 throw new SAXException ("ServiceException", ce);
137 } finally {
138 this.resolver.release(copletSource);
139 this.manager.release(portalService);
140 }
141 }
142
143
146 public void dispose() {
147 if ( this.manager != null ) {
148 EventManager eventManager = null;
149 try {
150 eventManager = (EventManager)this.manager.lookup(EventManager.ROLE);
151 eventManager.unsubscribe(this);
152 } catch (Exception ignore) {
153 } finally {
155 this.manager.release( eventManager );
156 }
157
158 this.manager.release( this.resolver );
159 this.resolver = null;
160 this.manager = null;
161 }
162 }
163
164
167 public void inform(CopletInstanceEvent event, PortalService service) {
168 List list = (List )service.getTemporaryAttribute(URICopletAdapter.class.getName());
169 if ( list == null ) {
170 list = new ArrayList ();
171 }
172 if ( !list.contains(event.getTarget()) ) {
173 list.add(event.getTarget());
174 }
175 service.setTemporaryAttribute(URICopletAdapter.class.getName(), list);
176 }
177
178
181 public void initialize() throws Exception {
182 EventManager eventManager = null;
183 try {
184 eventManager = (EventManager)this.manager.lookup(EventManager.ROLE);
185 eventManager.subscribe( this );
186 } finally {
187 this.manager.release( eventManager );
188 }
189 }
190
191
199 protected boolean renderErrorContent(CopletInstanceData coplet,
200 ContentHandler handler,
201 Exception error)
202 throws SAXException {
203 final String uri = (String ) this.getConfiguration(coplet, "error-uri");
204 if ( uri != null ) {
205
208 if ( uri.startsWith("cocoon:") && error != null) {
209 NotifyingBuilder notifyingBuilder = null;
211 Notifying currentNotifying = null;
212 try {
213 notifyingBuilder= (NotifyingBuilder)this.manager.lookup(NotifyingBuilder.ROLE);
214 currentNotifying = notifyingBuilder.build(this, error);
215 } catch (Exception ignore) {
216 } finally {
218 this.manager.release(notifyingBuilder);
219 }
220
221 final Map objectModel = ContextHelper.getObjectModel(this.context);
222 if ( currentNotifying != null ) {
224 objectModel.put(org.apache.cocoon.Constants.NOTIFYING_OBJECT, currentNotifying);
225 objectModel.put(ObjectModelHelper.THROWABLE_OBJECT, error);
226 }
227
228 try {
229 this.streamContent( coplet, uri, handler);
230 } finally {
231 objectModel.remove(org.apache.cocoon.Constants.NOTIFYING_OBJECT);
232 objectModel.remove(ObjectModelHelper.THROWABLE_OBJECT);
233 }
234 } else {
235
236 this.streamContent( coplet, uri, handler);
237 }
238
239 return true;
240 }
241 return false;
242 }
243 }
244 |
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