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1
48
49 package org.jpublish.action;
50
51 import java.io.IOException  ;
52 import java.io.InputStreamReader ;
53
54 import javax.servlet.ServletContext ;
55 import javax.servlet.http.HttpServletRequest ;
56 import javax.servlet.http.HttpServletResponse ;
57 import javax.servlet.http.HttpSession ;
58
59 import com.anthonyeden.lib.config.Configuration;
60 import com.anthonyeden.lib.util.MessageUtilities;
61 import org.apache.bsf.util.IOUtils;
62 import org.apache.commons.logging.Log;
63 import org.apache.commons.logging.LogFactory;
64 import org.apache.commons.vfs.FileContent;
65 import org.apache.commons.vfs.FileName;
66 import org.apache.commons.vfs.FileObject;
67 import org.apache.commons.vfs.FileSystemException;
68 import org.jpublish.JPublishEngine;
69 import org.jpublish.RequestContext;
70 import org.jpublish.SiteContext;
71 import org.jpublish.page.Page;
72
73
89
90 public class ScriptAction implements Action {
91
92 private static Log log = LogFactory.getLog(ScriptAction.class);
93
94 private SiteContext siteContext = null;
95 private FileObject file = null;
96 private ScriptHandlerDefinition handlerDefinition = null;
97 private FileContent fileContent = null;
98 private FileName fileName = null;
99
100 private String scriptLanguage = null;
101 private String scriptString = null;
102 private long timeLastLoaded = -1;
103
104
110 public ScriptAction(SiteContext siteContext, FileObject file,
111 ScriptHandlerDefinition handlerDefinition) throws FileSystemException {
112 this.siteContext = siteContext;
113 this.file = file;
114 this.handlerDefinition = handlerDefinition;
115
116 this.fileName = file.getName();
117 this.fileContent = file.getContent();
118 }
119
120
126
127 public void execute(RequestContext context, Configuration configuration) {
128 long startTime = System.currentTimeMillis();
129 try {
130 if (log.isDebugEnabled()) {
131 log.debug("Executing script: " + fileName);
132 }
133
134 ScriptHandler handler = handlerDefinition.getInstance();
136 handler.setFile(file);
137
138 if (context != null) {
140 ServletContext application = context.getApplication();
141 HttpServletRequest request = context.getRequest();
142 HttpServletResponse response = context.getResponse();
143 HttpSession session = context.getSession();
144 Page page = context.getPage();
145
146 handler.set("context", context, RequestContext.class);
148
149 if (page == null) {
151 log.debug("Page request is null");
152 } else {
153 handler.set("page", page, Page.class);
154 }
155
156 if (request == null) {
158 log.debug("HTTP request is null");
159 } else {
160 handler.set("request", request,
161 HttpServletRequest .class);
162 }
163
164 if (response == null) {
165 log.debug("HTTP response is null");
166 } else {
167 handler.set("response", response,
168 HttpServletResponse .class);
169 }
170
171 if (session == null) {
172 log.debug("HTTP session is null");
173 } else {
174 handler.set("session", session, HttpSession .class);
175 }
176
177 if (application == null) {
178 log.debug("ServletContext is null");
179 } else {
180 handler.set("application", application,
181 ServletContext .class);
182 }
183 }
184
185 handler.set("syslog", SiteContext.syslog, Log.class);
189
190 if (siteContext == null) {
191 log.debug("SiteContext is null");
192 } else {
193 handler.set("site", siteContext, SiteContext.class);
194 }
195
196 if (configuration == null) {
197 log.debug("Configuration is null");
198 } else {
199 handler.set("configuration", configuration,
200 Configuration.class);
201 }
202
203 boolean reloadScript = false;
205 long scriptLastModified = fileContent.getLastModifiedTime();
206 if (scriptLastModified > timeLastLoaded) {
207 if (log.isDebugEnabled()) {
208 log.debug("Loading updated or new script: " + fileName);
209 }
210 reloadScript = true;
211 }
212
213 if (reloadScript || scriptString == null) {
215 synchronized (this) {
216 if (reloadScript || scriptString == null) {
217 timeLastLoaded = System.currentTimeMillis();
218 scriptString = IOUtils.getStringFromReader(new InputStreamReader (fileContent.getInputStream()));
219 }
220 }
221 }
222
223 handler.execute(fileName.getURI(), scriptString, context,
225 configuration);
226
227 } catch (IOException e) {
228 Object [] args = {fileName.getURI(), e.getMessage()};
229 String msg = MessageUtilities.getMessage(getClass(),
230 JPublishEngine.MESSAGE_PACKAGE, "scriptIOError", args);
231 throw new ScriptExecutionException(msg, e, fileName.getURI());
232 } catch (Exception e) {
233 Object [] args = {fileName.getURI(), e.getMessage()};
234 String msg = MessageUtilities.getMessage(getClass(),
235 JPublishEngine.MESSAGE_PACKAGE, "scriptError", args);
236 throw new ScriptExecutionException(msg, e,
237 fileName.getURI());
238 } finally {
239 String hostname = "?";
240 if (context != null) {
241 HttpServletRequest request = context.getRequest();
242 if (request != null) {
243 hostname = request.getServerName();
244 }
245 }
246 long elapsed = System.currentTimeMillis() - startTime;
247 log.info("Elapsed time for " + hostname + ":/" + fileName + ":" + elapsed + "ms");
248 }
249 }
250 }
251 |
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