source: trunk/gli/src/org/greenstone/gatherer/GathererApplet.java@ 9092

Last change on this file since 9092 was 9092, checked in by mdewsnip, 19 years ago

Now ensures that the GLI user directory exists for both main program and applet.
  • Property svn:keywords set to Author Date Id Revision
File size: 11.1 KB
Line 
1/**
2 *#########################################################################
3 *
4 * A component of the Gatherer application, part of the Greenstone digital
5 * library suite from the New Zealand Digital Library Project at the
6 * University of Waikato, New Zealand.
7 *
8 * Author: John Thompson, Greenstone Digital Library, University of Waikato
9 *
10 * Copyright (C) 1999 New Zealand Digital Library Project
11 *
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation; either version 2 of the License, or
15 * (at your option) any later version.
16 *
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
21 *
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25 *########################################################################
26 */
27
28package org.greenstone.gatherer;
29
30import java.applet.*;
31import java.awt.event.ActionEvent;
32import java.awt.event.ActionListener;
33import java.net.*;
34import javax.swing.JApplet;
35
36import java.awt.*;
37import java.io.*;
38import java.util.*;
39import javax.swing.*;
40import org.greenstone.gatherer.Configuration;
41import org.greenstone.gatherer.feedback.ActionRecorderDialog;
42import org.greenstone.gatherer.gui.GUIManager;
43import org.greenstone.gatherer.util.Utility;
44
45
46public class GathererApplet extends JApplet implements ActionListener
47{
48 Gatherer gatherer;
49 GUIManager g_man;
50 Dimension size = new Dimension(800, 540);
51
52 protected String fullLibraryURL(String address)
53 {
54 String full_address = "";
55
56 // make sure the URL has protocol, host, and file
57 if (address.startsWith("http:")) {
58 // the address has all the necessary components
59 full_address = address;
60 }
61 else if (address.startsWith("/")) {
62 // there is not protocol and host
63 URL document = getDocumentBase();
64 int port_no = document.getPort();
65
66 String port = (port_no>0) ? ":" + port_no : "";
67 full_address = "http://" + document.getHost() + port + address;
68 }
69
70 return full_address;
71 }
72
73 public void init()
74 {
75 try {
76 // Work-around to reduce number of
77 // 'Could not lock user prefs' error messages.
78 // Thanks to Walter Schatz from the java forums.
79 System.setProperty("java.util.prefs.syncInterval","2000000");
80 }
81
82 catch (Exception exception) {
83 // convenient way of finding out if user has agreed to
84 // to requested security settings
85
86 JLabel lab
87 = new JLabel("Greenstone Librarian Interface Applet deactivated",
88 JLabel.CENTER);
89 getContentPane().add(lab);
90 return;
91 }
92
93 // Ensure platform specific LAF
94 try {
95 UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
96 }
97 catch (Exception exception) {
98 exception.printStackTrace();
99 }
100
101 // Ensure the GLI user directory exists
102 File gli_user_directory = Utility.getGLIUserFolder();
103 if (!gli_user_directory.exists()) {
104 gli_user_directory.mkdirs();
105 }
106
107 String gwcgi = getParameter("gwcgi");
108 String library_cgi = fullLibraryURL(gwcgi);
109 int cgi_base_cut = library_cgi.lastIndexOf('/');
110 String cgi_base = library_cgi.substring(0,cgi_base_cut+1);
111
112 gatherer = new Gatherer();
113
114 String[] args = { "-gsdl", gli_user_directory.toString(),
115 "-library", library_cgi,
116 };
117
118 GetOpt go = new GetOpt(args);
119
120 if (go.feedback_enabled) {
121 // If feedback is enabled, set up the recorder dialog.
122 // Use the default locale for now - this will be changed by the
123 // Gatherer run method
124 Locale currLocale = Locale.getDefault();
125 ActionRecorderDialog dlg = new ActionRecorderDialog (currLocale);
126 gatherer.feedback_enabled = true;
127 gatherer.feedback_dialog = dlg;
128 }
129
130 Gatherer.isGsdlRemote = true;
131 Gatherer.cgiBase = cgi_base;
132
133 Utility.BASE_DIR = go.gsdl_path;
134 if (!Utility.BASE_DIR.endsWith(File.separator)) {
135 Utility.BASE_DIR += File.separator;
136 }
137
138 Utility.METADATA_DIR = Utility.BASE_DIR + "metadata" + File.separator;
139
140 Configuration.TEMPLATE_CONFIG_XML = "xml/configRemote.xml";
141 Configuration.CONFIG_XML = "configRemote.xml";
142 Configuration.GS3_CONFIG_XML = "config3Remote.xml";
143
144 Gatherer.setCollectDirectoryPath(go.gsdl_path + "collect" + File.separator);
145 File col_dir = new File(Gatherer.getCollectDirectoryPath());
146 if (!col_dir.exists()) {
147 col_dir.mkdir();
148 }
149
150 File metadata_directory = new File(Utility.METADATA_DIR);
151 if (!metadata_directory.exists()) {
152 // digout metadata.zip from JAR file and unzip it
153 Utility.unzipFromJar(Utility.METADATA_ZIP, gli_user_directory.toString());
154 }
155
156
157 File plug_dat = new File(Utility.BASE_DIR + "plugins.dat");
158 if (!plug_dat.exists()) {
159 Utility.extractFromJar("plugins.dat",Utility.BASE_DIR,false);
160 }
161
162 File class_dat = new File(Utility.BASE_DIR + "classifiers.dat");
163 if (!class_dat.exists()) {
164 Utility.extractFromJar("classifiers.dat",Utility.BASE_DIR,false);
165 }
166
167 g_man = gatherer.init(size, go.gsdl_path, go.gsdl3_path, go.local_library_path,
168 go.library_url_string, go.debug, go.perl_path,
169 go.no_load, go.filename, go.site_name,
170 go.servlet_path, go.wget_version_str, go.wget_path);
171
172 JButton bttn = new JButton("Launch Greenstone Librarian Interface ...");
173 bttn.addActionListener(this);
174 getContentPane().add(bttn);
175 }
176
177
178
179 public void start()
180 {
181 System.err.println("Start called");
182 }
183
184
185
186 public void stop()
187 {
188 System.err.println("Stop called");
189
190 }
191
192 public void destroy()
193 {
194 System.err.println("Destroy called");
195 gatherer.exit();
196 System.err.println("Done gatherer exit.");
197 }
198
199 public void actionPerformed(ActionEvent e)
200 {
201 gatherer.run(size, g_man);
202
203 // If there was an open collection last session, reopen it.
204 if (Gatherer.open_collection_file_path != null) {
205 Gatherer.c_man.loadCollection(Gatherer.open_collection_file_path);
206 }
207 }
208
209
210 static public void download_url_zip(String col_name, String dir)
211 {
212 try {
213 String download_cgi = Gatherer.cgiBase + "download";
214
215 // Send col_name and dir arguments to download cgi
216
217 String col_name_encoded = URLEncoder.encode(col_name,"UTF-8");
218 String dir_encoded = URLEncoder.encode(dir,"UTF-8");
219 String cgi_args = "c=" + col_name_encoded;
220 cgi_args += "&dir=" + dir_encoded;
221
222 URL download_url = new URL(download_cgi);
223
224 System.err.println("**** download cgi = '" + download_cgi + "'");
225 System.err.println("**** cgi args = '" + cgi_args + "'");
226
227 URLConnection dl_connection = download_url.openConnection();
228 dl_connection.setDoOutput(true);
229 OutputStream dl_os = dl_connection.getOutputStream();
230
231 PrintWriter dl_out = new PrintWriter(dl_os);
232 dl_out.println(cgi_args);
233 dl_out.close();
234
235 // Download result from running cgi script
236 InputStream dl_is = dl_connection.getInputStream();
237 BufferedInputStream dl_bis = new BufferedInputStream(dl_is);
238 DataInputStream dl_dbis = new DataInputStream(dl_bis);
239
240 // set up output stream for zip download
241 String collect_directory_path = Gatherer.getCollectDirectoryPath();
242 String zip_fname = collect_directory_path + col_name + ".zip";
243 FileOutputStream zip_fos = new FileOutputStream(zip_fname);
244 BufferedOutputStream zip_bfos = new BufferedOutputStream(zip_fos);
245
246 byte[] buf = new byte[1024];
247 int len;
248
249 while ((len = dl_dbis.read(buf)) >= 0) {
250 zip_bfos.write(buf,0,len);
251 }
252
253 dl_dbis.close();
254 zip_bfos.close();
255
256 }
257 catch (Exception error) {
258 error.printStackTrace();
259 }
260 }
261
262
263 static public void upload_url_zip(String col_name, String dir)
264 {
265 final String lineEnd = "\r\n";
266 final String twoHyphens = "--";
267 final String boundary = "*****";
268 final int maxBufferSize = 1024;
269
270 String collect_directory_path = Gatherer.getCollectDirectoryPath();
271 String zip_fname = collect_directory_path + col_name + ".zip";
272 String upload_cgi = Gatherer.cgiBase + "upload";
273
274 HttpURLConnection conn = null;
275
276 try {
277 // Send zip file to server
278
279 File file = new File(zip_fname) ;
280 FileInputStream fileInputStream = new FileInputStream(file);
281
282 // open a URL connection to the Servlet
283 URL url = new URL(upload_cgi);
284 System.err.println("**** Uploading to: " + upload_cgi);
285
286 // Open a HTTP connection to the URL
287 conn = (HttpURLConnection) url.openConnection();
288
289 conn.setDoInput(true); // Allow Inputs
290 conn.setDoOutput(true); // Allow Outputs
291 conn.setUseCaches(false); // Don't use a cached copy.
292 conn.setRequestMethod("POST"); // Use a post method.
293
294 conn.setRequestProperty("Connection", "Keep-Alive");
295 conn.setRequestProperty("Content-Type", "multipart/form-data;boundary="+boundary);
296
297 DataOutputStream dos = new DataOutputStream( conn.getOutputStream() );
298
299 dos.writeBytes(twoHyphens + boundary + lineEnd);
300 dos.writeBytes("Content-Disposition: form-data; name=\"c\"" + lineEnd + lineEnd);
301 dos.writeBytes(col_name + lineEnd);
302 System.err.println("**** c="+col_name);
303
304 dos.writeBytes(twoHyphens + boundary + lineEnd);
305 dos.writeBytes("Content-Disposition: form-data; name=\"dir\"" + lineEnd + lineEnd);
306 dos.writeBytes(dir + lineEnd);
307 System.err.println("**** dir="+dir);
308
309 dos.writeBytes(twoHyphens + boundary + lineEnd);
310 dos.writeBytes("Content-Disposition: form-data; name=\"zip\";"
311 + " filename=\"" + zip_fname +"\"" + lineEnd);
312 dos.writeBytes(lineEnd);
313 System.err.println("**** zip (filename)="+zip_fname);
314
315 // create a buffer of maximum size
316 int bytesAvailable = fileInputStream.available();
317 int bufferSize = Math.min(bytesAvailable, maxBufferSize);
318 byte[] buffer = new byte[bufferSize];
319
320 // read file and write it into form...
321 int bytesRead = fileInputStream.read(buffer, 0, bufferSize);
322
323 while (bytesRead > 0) {
324 dos.write(buffer, 0, bufferSize);
325 bytesAvailable = fileInputStream.available();
326 bufferSize = Math.min(bytesAvailable, maxBufferSize);
327 bytesRead = fileInputStream.read(buffer, 0, bufferSize);
328 }
329
330 // send multipart form data necesssary after file data...
331
332 dos.writeBytes(lineEnd);
333 dos.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd);
334
335 // close streams
336
337 fileInputStream.close();
338 dos.flush();
339 dos.close();
340
341
342 }
343 catch (MalformedURLException ex) {
344 System.err.println("Failed on: "+ex);
345 }
346
347 catch (IOException ioe) {
348 System.err.println("Failed on: "+ioe);
349 }
350
351 // Read server response
352
353 try {
354 InputStreamReader isr = new InputStreamReader(conn.getInputStream() );
355 BufferedReader bisr = new BufferedReader (isr);
356 String str;
357 while (( str = bisr.readLine()) != null) {
358 System.err.println(str);
359 }
360 bisr.close();
361
362 }
363 catch (IOException ioex) {
364 System.err.println("From (ServerResponse): "+ioex);
365 }
366 }
367}
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