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16 package org.apache.pluto.driver.deploy.impl;
17
18 import java.io.File;
19 import java.io.IOException;
20 import java.io.RandomAccessFile;
21
22 import org.apache.pluto.driver.deploy.PortalRegistrarService;
23 import org.apache.pluto.descriptors.services.PortletAppDescriptorService;
24
25 /***
26 * Registrar service which adds the application context to the
27 * registry file.
28 *
29 * @author <a href="ddewolf@apache.org">David H. DeWolf</a>
30 * @version 1.0
31 * @since Mar 11, 2005
32 */
33 public class ContextRegistryRegistrarService implements PortalRegistrarService {
34
35 public static final String CONTEXT_FILE = "WEB-INF/data/portletcontexts.txt";
36
37 private File webAppDir;
38
39 public ContextRegistryRegistrarService(File webAppDir) {
40 this.webAppDir = webAppDir;
41 }
42
43 public void register(PortletAppDescriptorService service)
44 throws IOException {
45 System.out.println("<VERBOSE> Registering Applicaiton Context");
46 File file = new File(webAppDir, CONTEXT_FILE);
47 RandomAccessFile ras = new RandomAccessFile(file, "rw");
48
49 long length = ras.length();
50 byte[] contentByte = new byte[(int) length];
51 ras.read(contentByte);
52 String contents = new String(contentByte);
53 long pos = contents.lastIndexOf("/"+service.getContextPath());
54 if(pos > -1) {
55 System.out.println("<VERBOSE> Found previous context registration; Registration aborted.");
56 ras.close();
57 return;
58 }
59 ras.seek(length);
60 ras.writeBytes("/"+service.getContextPath());
61 ras.writeBytes("\n");
62 ras.close();
63 }
64 }
65