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16 package org.apache.cocoon.components.deli;
17
18 import java.io.BufferedReader  ;
19 import java.io.IOException ;
20 import java.net.MalformedURLException ;
21 import java.security.Principal ;
22 import java.util.Enumeration ;
23 import java.util.Iterator ;
24 import java.util.Locale ;
25 import java.util.Map ;
26 import java.util.Set ;
27 import java.util.Vector ;
28
29 import javax.servlet.RequestDispatcher ;
30 import javax.servlet.Servlet ;
31 import javax.servlet.ServletContext ;
32 import javax.servlet.ServletException ;
33 import javax.servlet.ServletInputStream ;
34 import javax.servlet.http.Cookie ;
35 import javax.servlet.http.HttpServletRequest ;
36 import javax.servlet.http.HttpSession ;
37
38 import org.apache.avalon.framework.activity.Disposable;
39 import org.apache.avalon.framework.activity.Initializable;
40 import org.apache.avalon.framework.context.Context;
41 import org.apache.avalon.framework.context.ContextException;
42 import org.apache.avalon.framework.context.Contextualizable;
43 import org.apache.avalon.framework.logger.AbstractLogEnabled;
44 import org.apache.avalon.framework.parameters.Parameterizable;
45 import org.apache.avalon.framework.parameters.Parameters;
46 import org.apache.avalon.framework.service.ServiceException;
47 import org.apache.avalon.framework.service.ServiceManager;
48 import org.apache.avalon.framework.service.Serviceable;
49 import org.apache.avalon.framework.thread.ThreadSafe;
50 import org.apache.cocoon.Constants;
51 import org.apache.cocoon.environment.Request;
52 import org.apache.excalibur.xml.dom.DOMParser;
53 import org.w3c.dom.Document ;
54 import org.w3c.dom.Element ;
55 import org.w3c.dom.Text ;
56
57 import com.hp.hpl.deli.Profile;
58 import com.hp.hpl.deli.ProfileAttribute;
59 import com.hp.hpl.deli.Workspace;
60
61
72 public final class DeliImpl extends AbstractLogEnabled
73 implements Parameterizable, Deli, Serviceable, Disposable, Initializable,
74 ThreadSafe, Contextualizable {
75
76
77 private String deliConfig = "deli/config/deliConfig.xml";
78
79
80 protected ServiceManager manager = null;
81
82
83 protected DOMParser parser;
84
85
86 protected CocoonServletContext servletContext;
87
88
89 public void contextualize(Context context) throws ContextException {
90 org.apache.cocoon.environment.Context ctx =
91 (org.apache.cocoon.environment.Context)context.get(
92 Constants.CONTEXT_ENVIRONMENT_CONTEXT);
93 this.servletContext = new CocoonServletContext(ctx);
94 }
95
96
97 public void service(ServiceManager manager) throws ServiceException {
98 this.manager = manager;
99 try {
100 this.parser = (DOMParser)this.manager.lookup(DOMParser.ROLE);
101 } catch (ServiceException e) {
102 getLogger().error("DELI Exception while creating parser: ", e);
103 throw e;
104 }
105 }
106
107
108 public void parameterize(Parameters params) {
109 this.deliConfig = params.getParameter("deli-config-file", this.deliConfig);
110 }
111
112
115 public void initialize() throws Exception {
116 try {
117 Workspace.getInstance().configure(this.servletContext, this.deliConfig);
118 } catch (Exception e) {
119 getLogger().error("DELI Exception while creating workspace: ", e);
120 throw e;
121 }
122 }
123
124
125 public void dispose() {
126 if (parser != null) {
127 this.manager.release(parser);
128 }
129 this.parser = null;
130 }
131
132
144 public Profile getProfile(Request theRequest)
145 throws IOException , ServletException , Exception {
146 Profile theProfile = null;
147 try {
148 CocoonServletRequest servletRequest = new CocoonServletRequest(theRequest);
149 theProfile = new Profile(servletRequest);
150 } catch (Exception e) {
151 getLogger().error("DELI Exception while retrieving profile: ", e);
152 throw e;
153 }
154 return theProfile;
155 }
156
157
163 public Document getUACapabilities(Profile theProfile) throws Exception {
164 Document document = null;
165 try {
166 Element rootElement;
167 Element attributeNode;
168 Element complexAttributeNode;
169 Text text;
170
171 document = parser.createDocument();
172 rootElement = document.createElementNS(null, "browser");
173 document.appendChild(rootElement);
174
175 Iterator profileIter = theProfile.iterator();
176 while (profileIter.hasNext()) {
177 ProfileAttribute p = (ProfileAttribute)profileIter.next();
178 attributeNode = document.createElementNS(null, p.getAttribute());
179 rootElement.appendChild(attributeNode);
180 Vector attributeValue = p.get();
181 if (attributeValue != null)
182 {
183 Iterator complexValueIter = attributeValue.iterator();
184 if (p.getCollectionType().equals("Simple")) {
185 String value = (String )complexValueIter.next();
187 text = document.createTextNode(value);
188 attributeNode.appendChild(text);
189 } else {
190 while (complexValueIter.hasNext()) {
192 String value = (String )complexValueIter.next();
193 complexAttributeNode = document.createElementNS(null, "li");
194 attributeNode.appendChild(complexAttributeNode);
195 text = document.createTextNode(value);
196 complexAttributeNode.appendChild(text);
197 }
198 }
199 }
200 }
201 } catch (Exception e) {
202 getLogger().error("DELI Exception while converting profile to DOM fragment: ", e);
203 throw e;
204 }
205 return document;
206 }
207
208 public Document getUACapabilities(Request theRequest)
209 throws IOException , Exception {
210 return this.getUACapabilities(this.getProfile(theRequest));
211 }
212
213
216 public static class CocoonServletContext implements ServletContext {
217
218 org.apache.cocoon.environment.Context envContext;
219
220 public CocoonServletContext(org.apache.cocoon.environment.Context context) {
221 this.envContext = context;
222 }
223
224 public Object getAttribute(String name) { return envContext.getAttribute(name); }
225 public void setAttribute(String name, Object value) { envContext.setAttribute(name, value); }
226 public Enumeration getAttributeNames() { return envContext.getAttributeNames(); }
227 public java.net.URL getResource(String path) throws MalformedURLException { return envContext.getResource(path); }
228 public String getRealPath(String path) { return envContext.getRealPath(path); }
229 public String getMimeType(String file) { return envContext.getMimeType(file); }
230 public String getInitParameter(String name) { return envContext.getInitParameter(name); }
231 public java.io.InputStream getResourceAsStream(String path) { return envContext.getResourceAsStream(path); }
232
233 public ServletContext getContext(String uripath) { return (null); }
234 public Enumeration getInitParameterNames() { return (null); }
235 public int getMajorVersion() { return (2); }
236 public int getMinorVersion() { return (3); }
237 public RequestDispatcher getNamedDispatcher(String name) { return (null); }
238 public RequestDispatcher getRequestDispatcher(String path) { return (null); }
239 public Set getResourcePaths(String path) { return null; }
240 public String getServerInfo() { return (null); }
241
246 public Servlet getServlet(String name) throws ServletException { return (null); }
247 public String getServletContextName() { return (null); }
248
253 public Enumeration getServletNames() { return (null); }
254
259 public Enumeration getServlets() { return (null); }
260 public void log(String message) {}
261
262 public void log(Exception exception, String message) {}
263 public void log(String message, Throwable throwable) {}
264 public void removeAttribute(String name) {}
265 }
266
267
270 public static class CocoonServletRequest implements HttpServletRequest {
271 Request request;
272
273 public CocoonServletRequest(Request request) {
274 this.request = request;
275 }
276
277 public String getAuthType() { return request.getAuthType(); }
278 public long getDateHeader(String s) { return request.getDateHeader(s); }
279 public String getHeader(String s) { return request.getHeader(s); }
280 public Enumeration getHeaders(String s) { return request.getHeaders(s); }
281 public Enumeration getHeaderNames() { return request.getHeaderNames(); }
282 public String getMethod() { return request.getMethod(); }
283 public String getPathInfo() { return request.getPathInfo(); }
284 public String getPathTranslated() { return request.getPathTranslated(); }
285 public String getContextPath() { return request.getContextPath(); }
286 public String getQueryString() { return request.getQueryString(); }
287 public String getRemoteUser() { return request.getRemoteUser(); }
288 public boolean isUserInRole(String s) { return request.isUserInRole(s); }
289 public String getRequestedSessionId() { return request.getRequestedSessionId(); }
290 public String getRequestURI() { return request.getRequestURI(); }
291 public String getServletPath() { return request.getServletPath(); }
292 public boolean isRequestedSessionIdValid() { return request.isRequestedSessionIdValid(); }
293 public boolean isRequestedSessionIdFromCookie() { return request.isRequestedSessionIdFromCookie(); }
294 public Object getAttribute(String s) { return request.getAttribute(s); }
295 public Enumeration getAttributeNames() { return request.getAttributeNames(); }
296 public String getCharacterEncoding() { return request.getCharacterEncoding(); }
297 public int getContentLength() { return request.getContentLength(); }
298 public String getContentType() { return request.getContentType(); }
299 public String getParameter(String s) { return request.getParameter(s); }
300 public Enumeration getParameterNames() { return request.getParameterNames(); }
301 public String [] getParameterValues(String s) { return request.getParameterValues(s); }
302 public String getProtocol() { return request.getProtocol(); }
303 public String getScheme() { return request.getScheme(); }
304 public String getServerName() { return request.getServerName(); }
305 public int getServerPort() { return request.getServerPort(); }
306 public String getRemoteAddr() { return request.getRemoteAddr(); }
307 public String getRemoteHost() { return request.getRemoteHost(); }
308 public void setAttribute(String s, Object obj) { request.setAttribute(s, obj); }
309 public void removeAttribute(String s) { request.removeAttribute(s); }
310 public boolean isSecure() { return request.isSecure(); }
311 public StringBuffer getRequestURL() { return null; }
312 public Map getParameterMap() { return null; }
313 public void setCharacterEncoding(String s) {}
314 public Principal getUserPrincipal() { return request.getUserPrincipal(); }
315 public Locale getLocale() { return request.getLocale(); }
316 public Enumeration getLocales() { return request.getLocales(); }
317
318
319 public String getRealPath(String s) { return null; }
320 public Cookie [] getCookies() { return null; }
321 public RequestDispatcher getRequestDispatcher(String s) { return null; }
322 public BufferedReader getReader() throws IOException { return null; }
323 public ServletInputStream getInputStream() throws IOException { return null; }
324 public HttpSession getSession(boolean flag) { return null; }
325 public HttpSession getSession() { return null; }
326 public boolean isRequestedSessionIdFromURL() { return false; }
327
328 public boolean isRequestedSessionIdFromUrl() { return false; }
329 public int getIntHeader(String s) { return 0; }
330 }
331
332 }
333
334 |
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