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 | * <BR><BR>
|
---|
9 | *
|
---|
10 | * Author: John Thompson, Greenstone Digital Library, University of Waikato
|
---|
11 | *
|
---|
12 | * <BR><BR>
|
---|
13 | *
|
---|
14 | * Copyright (C) 1999 New Zealand Digital Library Project
|
---|
15 | *
|
---|
16 | * <BR><BR>
|
---|
17 | *
|
---|
18 | * This program is free software; you can redistribute it and/or modify
|
---|
19 | * it under the terms of the GNU General Public License as published by
|
---|
20 | * the Free Software Foundation; either version 2 of the License, or
|
---|
21 | * (at your option) any later version.
|
---|
22 | *
|
---|
23 | * <BR><BR>
|
---|
24 | *
|
---|
25 | * This program is distributed in the hope that it will be useful,
|
---|
26 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
|
---|
27 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
---|
28 | * GNU General Public License for more details.
|
---|
29 | *
|
---|
30 | * <BR><BR>
|
---|
31 | *
|
---|
32 | * You should have received a copy of the GNU General Public License
|
---|
33 | * along with this program; if not, write to the Free Software
|
---|
34 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
---|
35 | *########################################################################
|
---|
36 | */
|
---|
37 | package org.greenstone.gatherer.collection;
|
---|
38 |
|
---|
39 | import java.awt.event.*;
|
---|
40 | import java.io.*;
|
---|
41 | import java.net.*;
|
---|
42 | import java.util.*;
|
---|
43 | import javax.swing.tree.*;
|
---|
44 | import org.greenstone.gatherer.Configuration;
|
---|
45 | import org.greenstone.gatherer.DebugStream;
|
---|
46 | import org.greenstone.gatherer.Dictionary;
|
---|
47 | import org.greenstone.gatherer.Gatherer;
|
---|
48 | import org.greenstone.gatherer.GAuthenticator;
|
---|
49 | import org.greenstone.gatherer.WGet;
|
---|
50 | import org.greenstone.gatherer.file.WorkspaceTree;
|
---|
51 | import org.greenstone.gatherer.gui.DownloadProgressBar;
|
---|
52 | import org.greenstone.gatherer.util.AppendLineOnlyFileDocument;
|
---|
53 | import org.greenstone.gatherer.util.GURL;
|
---|
54 | import org.greenstone.gatherer.util.SynchronizedTreeModelTools;
|
---|
55 | import org.greenstone.gatherer.util.Utility;
|
---|
56 | /**
|
---|
57 | * @author John Thompson, Greenstone Digital Library, University of Waikato
|
---|
58 | * @version 2.0
|
---|
59 | */
|
---|
60 | public class DownloadJob
|
---|
61 | implements ActionListener {
|
---|
62 |
|
---|
63 | private boolean debug;
|
---|
64 | private boolean higher_directories;
|
---|
65 | private boolean no_parents;
|
---|
66 | private boolean other_hosts;
|
---|
67 | private boolean page_requisites;
|
---|
68 | private boolean quiet;
|
---|
69 |
|
---|
70 | private AppendLineOnlyFileDocument download_log;
|
---|
71 |
|
---|
72 | private DownloadProgressBar progress;
|
---|
73 |
|
---|
74 | private GURL initial = null;
|
---|
75 | private GURL url = null;
|
---|
76 |
|
---|
77 | // private TreeModel model;
|
---|
78 |
|
---|
79 | private int depth;
|
---|
80 | private int previous_state;
|
---|
81 | private int state;
|
---|
82 |
|
---|
83 | private String current_url;
|
---|
84 | private String destination;
|
---|
85 | private String proxy_pass;
|
---|
86 | private String proxy_user;
|
---|
87 |
|
---|
88 | private Vector encountered_urls;
|
---|
89 | private Vector failed_urls;
|
---|
90 |
|
---|
91 | private WGet mummy;
|
---|
92 |
|
---|
93 | public static int COMPLETE = 0;
|
---|
94 | public static int PAUSED = 1;
|
---|
95 | public static int RUNNING = 2;
|
---|
96 | public static int STOPPED = 3;
|
---|
97 |
|
---|
98 | /**
|
---|
99 | */
|
---|
100 | public DownloadJob(boolean debug, boolean no_parents, boolean other_hosts, boolean page_requisites, boolean quiet, URL initial, int depth, String destination, String proxy_pass, String proxy_user, WGet mummy, boolean simple) {
|
---|
101 | // this.model = model;
|
---|
102 |
|
---|
103 | String log_filename = Gatherer.getGLIUserLogDirectoryPath() + "wget" + initial.hashCode() + ".log";
|
---|
104 | File log_file = new File(log_filename);
|
---|
105 | if(log_file.exists()) {
|
---|
106 | log_file.delete();
|
---|
107 | }
|
---|
108 | File parent_log_file = log_file.getParentFile();
|
---|
109 | parent_log_file.mkdirs();
|
---|
110 | parent_log_file = null;
|
---|
111 | log_file = null;
|
---|
112 |
|
---|
113 | this.debug = debug;
|
---|
114 | this.download_log = new AppendLineOnlyFileDocument(log_filename, false);
|
---|
115 | this.no_parents = no_parents;
|
---|
116 | this.other_hosts = other_hosts;
|
---|
117 | this.page_requisites = page_requisites;
|
---|
118 | this.quiet = quiet;
|
---|
119 | this.initial = new GURL(initial);
|
---|
120 | this.depth = depth;
|
---|
121 | this.destination = destination;
|
---|
122 | this.proxy_pass = proxy_pass;
|
---|
123 | this.proxy_user = proxy_user;
|
---|
124 | this.mummy = mummy;
|
---|
125 |
|
---|
126 | progress = new DownloadProgressBar(this, initial.toString(), simple);
|
---|
127 |
|
---|
128 | encountered_urls = new Vector();
|
---|
129 | failed_urls = new Vector();
|
---|
130 |
|
---|
131 | previous_state = STOPPED;
|
---|
132 | state = STOPPED;
|
---|
133 | }
|
---|
134 |
|
---|
135 | /** Depending on which button on the progress bar was pushed,
|
---|
136 | * this method will affect the state of the DownloadJob and perhaps make
|
---|
137 | * calls to wget.class if necessary.
|
---|
138 | * @param event The ActionEvent fired from within the DownloadProgressBar
|
---|
139 | * which we must respond to.
|
---|
140 | */
|
---|
141 | public void actionPerformed(ActionEvent event) {
|
---|
142 | // The stop_start_button is used to alternately start or stop the
|
---|
143 | // job. If the current state of the job is paused then this
|
---|
144 | // restart is logically equivelent to a resume.
|
---|
145 | if(event.getSource() == progress.stop_start_button) {
|
---|
146 | previous_state = state;
|
---|
147 | if (state == RUNNING) {
|
---|
148 | state = STOPPED;
|
---|
149 | } else {
|
---|
150 | //previous_state = state;
|
---|
151 | state = RUNNING;
|
---|
152 | mummy.resumeThread();
|
---|
153 | }
|
---|
154 | }
|
---|
155 | else if (event.getSource() == progress.close_button) {
|
---|
156 | if(state == RUNNING) {
|
---|
157 | previous_state = state;
|
---|
158 | state = STOPPED; // do we need to do anything else to stop this?
|
---|
159 | }
|
---|
160 | // else {
|
---|
161 | mummy.deleteDownloadJob(this);
|
---|
162 | // }
|
---|
163 | }
|
---|
164 | }
|
---|
165 |
|
---|
166 | /** Called by the WGet native code to inform us of a new download starting.
|
---|
167 | * @param raw_url The url that is being downloaded, as a String.
|
---|
168 | */
|
---|
169 | public void addDownload(String raw_url) {
|
---|
170 | if(!encountered_urls.contains(raw_url)) {
|
---|
171 | encountered_urls.add(raw_url);
|
---|
172 | }
|
---|
173 | // Regardless create a new GURL
|
---|
174 | current_url = raw_url;
|
---|
175 | url = new GURL(raw_url);
|
---|
176 | progress.addDownload(raw_url);
|
---|
177 | }
|
---|
178 |
|
---|
179 | /** Used to advise the DownloadJob of a newly parsed link. Its up to DownloadJob
|
---|
180 | * to decide if it already knows about this url, and if not to
|
---|
181 | * update its progress bar.
|
---|
182 | * @param raw_url The url in question as a String.
|
---|
183 | * @param type Whether the link is an internal or external link.
|
---|
184 | * @return A boolean indicating if the url was added.
|
---|
185 | */
|
---|
186 | public boolean addLink(String raw_url, int type) {
|
---|
187 | ///System.out.println("addLink("+url+", "+type+")");
|
---|
188 | if(!encountered_urls.contains(raw_url)) {
|
---|
189 | // Add it to the urls we've seen.
|
---|
190 | encountered_urls.add(raw_url);
|
---|
191 | // Add it the to links for the current GURL.
|
---|
192 |
|
---|
193 | // Add it to the progress file count.
|
---|
194 | progress.increaseFileCount();
|
---|
195 | return true;
|
---|
196 | }
|
---|
197 | // Regardless add it to the children links of the current GURL
|
---|
198 | initial.addLink(raw_url);
|
---|
199 |
|
---|
200 | // We've seen it before. Don't count it again.
|
---|
201 | return false;
|
---|
202 | }
|
---|
203 |
|
---|
204 | public void callWGet() {
|
---|
205 | // Build parameter string. Note that we never clobber, and we continue if possible
|
---|
206 |
|
---|
207 | // want to always download newer files, convert non-relative links to relative, always use directories, and only try twice to get a file before giving up
|
---|
208 | String command = Configuration.getWGetPath() + " -N -k -x -t 2 "; // + " -nc -c ";
|
---|
209 |
|
---|
210 | if (no_parents) {
|
---|
211 | command = command + "-np ";
|
---|
212 | }
|
---|
213 | if(depth < 0) {
|
---|
214 | // Infinite recursion
|
---|
215 | command = command + "-r ";
|
---|
216 | }
|
---|
217 | else if (depth == 0) {
|
---|
218 | // Just this page.
|
---|
219 | }
|
---|
220 | else if (depth > 0) {
|
---|
221 | // Recursion to the specified depth.
|
---|
222 | command = command + "-r -l" + depth + " ";
|
---|
223 | }
|
---|
224 |
|
---|
225 | String proxy_url = "";
|
---|
226 | // Determine if we have to use a proxy.
|
---|
227 | if(Configuration.get("general.use_proxy", true)) {
|
---|
228 | String proxy_host = Configuration.getString("general.proxy_host", true);
|
---|
229 | String proxy_port = Configuration.getString("general.proxy_port", true);
|
---|
230 | // Find out whether the user has already authenticated themselves
|
---|
231 | String user_pass = null;
|
---|
232 | String address = proxy_host + ":" + proxy_port;
|
---|
233 | int count = 0;
|
---|
234 | while(count < 3 && (user_pass = (String) GAuthenticator.authentications.get(address)) == null) {
|
---|
235 | Authenticator.requestPasswordAuthentication(proxy_host, null, Integer.parseInt(proxy_port), "http://", Dictionary.get("WGet.Prompt"), "HTTP");
|
---|
236 | count++;
|
---|
237 | }
|
---|
238 | if(count >= 3) {
|
---|
239 | state = STOPPED;
|
---|
240 | return;
|
---|
241 | }
|
---|
242 | if(user_pass.indexOf("@") != -1) {
|
---|
243 |
|
---|
244 | // Write the use proxy command - we don't do this anymore, instead we set environment variables - hopefully these can't be spied on like the follwoing can (using ps) - actually the environment stuff didn't work for windows, so lets go back to this
|
---|
245 | if (Utility.isWindows()) {
|
---|
246 | command = command + "-e httpproxy=" + proxy_host + ":" + proxy_port + "/ --proxy-user=" + user_pass.substring(0, user_pass.indexOf("@")) + " --proxy-passwd=" + user_pass.substring(user_pass.indexOf("@") + 1) + " -Y on ";
|
---|
247 | } else {
|
---|
248 | String user_name = user_pass.substring(0, user_pass.indexOf("@"));
|
---|
249 | String user_pwd = user_pass.substring(user_pass.indexOf("@") + 1);
|
---|
250 | proxy_url = user_name+":"+user_pwd+"@"+proxy_host+":"+proxy_port+"/";
|
---|
251 | }
|
---|
252 |
|
---|
253 | }
|
---|
254 | else {
|
---|
255 | DebugStream.println("Unknown user/pass");
|
---|
256 | }
|
---|
257 | }
|
---|
258 |
|
---|
259 |
|
---|
260 |
|
---|
261 |
|
---|
262 | // The user can choose to mirror all of the page requisites...
|
---|
263 | if(page_requisites) {
|
---|
264 | command = command + "-p ";
|
---|
265 | }
|
---|
266 | else{ //or only HTML page (ignore associated files e.g images, stylesheets)
|
---|
267 | command = command + "-A " + ".html,.htm,.shm,.shtml,.asp,.php,.cgi,*?*=* ";
|
---|
268 | }
|
---|
269 |
|
---|
270 | // Download files from other hosts
|
---|
271 | if(other_hosts) {
|
---|
272 | command = command + "-H ";
|
---|
273 | }
|
---|
274 |
|
---|
275 | // Finally tell it the site to download.
|
---|
276 | command = command + initial.toString();
|
---|
277 |
|
---|
278 | if(previous_state == DownloadJob.COMPLETE) {
|
---|
279 | progress.mirrorBegun(true, true);
|
---|
280 | }
|
---|
281 | else {
|
---|
282 | progress.mirrorBegun(false, true);
|
---|
283 | }
|
---|
284 |
|
---|
285 | File dest_file = new File(destination);
|
---|
286 | if (!dest_file.exists()) {
|
---|
287 | dest_file.mkdirs();
|
---|
288 | }
|
---|
289 | // Run it
|
---|
290 |
|
---|
291 | //System.out.println("***"+command);
|
---|
292 | try {
|
---|
293 | //DebugStream.println("Cmd: " + command); // don't print it out cos it may have the password in it
|
---|
294 | Runtime rt = Runtime.getRuntime();
|
---|
295 | String [] env = null;
|
---|
296 | if (!proxy_url.equals("")) {
|
---|
297 | env = new String[2];
|
---|
298 | env[0] = "http_proxy=http://"+proxy_url;
|
---|
299 | env[1] = "ftp_proxy=ftp://"+proxy_url;
|
---|
300 | }
|
---|
301 | Process prcs = rt.exec(command, env, dest_file);
|
---|
302 | InputStreamReader isr = new InputStreamReader(prcs.getErrorStream());
|
---|
303 | BufferedReader br = new BufferedReader(isr);
|
---|
304 | // Capture the standard error stream and seach for two particular occurances.
|
---|
305 | String line;
|
---|
306 | boolean ignore_for_robots = false;
|
---|
307 | while ((line = br.readLine()) != null && state != STOPPED) {
|
---|
308 |
|
---|
309 | DebugStream.println(line);
|
---|
310 | download_log.appendLine(line);
|
---|
311 | // The first magic special test is to see if we've just
|
---|
312 | // asked for the robots.txt file. If so we ignore
|
---|
313 | // the next add and then the next complete/error.
|
---|
314 | if(line.lastIndexOf("robots.txt;") != -1) {
|
---|
315 | DebugStream.println("***** Requesting robot.txt");
|
---|
316 | ignore_for_robots = true;
|
---|
317 | }
|
---|
318 | // If line contains "=> `" display text as the
|
---|
319 | // currently downloading url. Unique to add download.
|
---|
320 | else if(line.lastIndexOf("=> `") != -1) {
|
---|
321 | if(!ignore_for_robots) {
|
---|
322 | // Add download
|
---|
323 | String new_url = line.substring(line.indexOf("`") + 1, line.lastIndexOf("'"));
|
---|
324 | addDownload("http:/" + new_url);
|
---|
325 | }
|
---|
326 | }
|
---|
327 | // If line contains "/s) - `" set currently
|
---|
328 | // downloading url to "Download Complete".
|
---|
329 | else if(line.lastIndexOf("/s) - `") != -1) {
|
---|
330 | String current_file_downloading = line.substring(line.indexOf("`") + 1, line.lastIndexOf("'"));
|
---|
331 | if(!ignore_for_robots) {
|
---|
332 | DebugStream.println("Not ignore for robots");
|
---|
333 | // Download complete
|
---|
334 | downloadComplete(current_file_downloading);
|
---|
335 | }
|
---|
336 | else {
|
---|
337 | DebugStream.println("Ignore for robots");
|
---|
338 | ignore_for_robots = false;
|
---|
339 | }
|
---|
340 | }
|
---|
341 | // The already there line begins "File `..." However this
|
---|
342 | // is only true in english, so instead I looked and there
|
---|
343 | // are few (if any at all) other messages than those above
|
---|
344 | // and not overwriting messages that use " `" so we'll
|
---|
345 | // look for that. Note this method is not guarenteed to be
|
---|
346 | // unique like the previous two.
|
---|
347 | else if(line.lastIndexOf(" `") != -1) {
|
---|
348 | // Not Overwriting
|
---|
349 | DebugStream.println("Already there.");
|
---|
350 | String new_url =
|
---|
351 | line.substring(line.indexOf("`") + 1, line.lastIndexOf("'"));
|
---|
352 | addDownload("http:/" + new_url);
|
---|
353 | downloadWarning();
|
---|
354 | }
|
---|
355 | // Any other important message starts with the time in the form hh:mm:ss
|
---|
356 | else if(line.length() > 7) {
|
---|
357 | if(line.charAt(2) == ':' && line.charAt(5) == ':') {
|
---|
358 | if(!ignore_for_robots) {
|
---|
359 | DebugStream.println("Error.");
|
---|
360 | downloadFailed();
|
---|
361 | }
|
---|
362 | else {
|
---|
363 | ignore_for_robots = false;
|
---|
364 | }
|
---|
365 | }
|
---|
366 | }
|
---|
367 | }
|
---|
368 | if(state == STOPPED) {
|
---|
369 | isr.close();
|
---|
370 | prcs.destroy(); // This doesn't always work, but it's worth a try
|
---|
371 | }
|
---|
372 | else {
|
---|
373 | // Now display final message based on exit value
|
---|
374 | prcs.waitFor();
|
---|
375 | }
|
---|
376 | }
|
---|
377 | catch (Exception ioe) {
|
---|
378 | //message(Utility.ERROR, ioe.toString());
|
---|
379 | DebugStream.printStackTrace(ioe);
|
---|
380 | }
|
---|
381 | // If we've got to here and the state isn't STOPPED then the
|
---|
382 | // job is complete.
|
---|
383 | if(state == DownloadJob.RUNNING) {
|
---|
384 | progress.mirrorComplete();
|
---|
385 | previous_state = state;
|
---|
386 | state = DownloadJob.COMPLETE;
|
---|
387 |
|
---|
388 | }
|
---|
389 | // refresh the workspace tree
|
---|
390 | Gatherer.g_man.refreshWorkspaceTree(WorkspaceTree.DOWNLOADED_FILES_CHANGED);
|
---|
391 | }
|
---|
392 |
|
---|
393 |
|
---|
394 | /** The most important part of the DownloadJob class, this method is
|
---|
395 | * responsible for calling the WGet native methods used to
|
---|
396 | * mirror the indicated url. By this stage all the variables
|
---|
397 | * necessary should be set and we need only build up the
|
---|
398 | * parameter string and make the call.
|
---|
399 | */
|
---|
400 | public void callWGetNative() {
|
---|
401 | Vector args = new Vector();
|
---|
402 |
|
---|
403 | // Let the DownloadProgressBar know we're starting, just in case
|
---|
404 | // the user hasn't told us to. If this is the second time the
|
---|
405 | // urls downloaded and the first attempt was successful (ie
|
---|
406 | // the previous job was complete), then we have the case where
|
---|
407 | // the user is forcing us to remirror. Reset all the values etc
|
---|
408 | // if this is the case then reset the variables.
|
---|
409 | // Note that this can cause the result line to look something
|
---|
410 | // like this.
|
---|
411 | // Downloaded 12 of 12 files (8 warnings, 0 errors).
|
---|
412 | // The warnings would be something like, 'File already downloaded'
|
---|
413 | // but the total number of files and the file successfully
|
---|
414 | // downloaded will be correct.
|
---|
415 | if(previous_state == DownloadJob.COMPLETE) {
|
---|
416 | progress.mirrorBegun(true, false);
|
---|
417 | }
|
---|
418 | else {
|
---|
419 | progress.mirrorBegun(false, false);
|
---|
420 | }
|
---|
421 |
|
---|
422 | // Parse arguments into array.
|
---|
423 | args.add(Configuration.getWGetPath());
|
---|
424 | args.add("-d");
|
---|
425 | args.add("-o");
|
---|
426 | args.add("debug.txt");
|
---|
427 |
|
---|
428 | if(destination != null) {
|
---|
429 | args.add("-P");
|
---|
430 | args.add(destination);
|
---|
431 | }
|
---|
432 |
|
---|
433 | if(depth < 0) {
|
---|
434 | // Infinite recursion
|
---|
435 | args.add("-r");
|
---|
436 | }
|
---|
437 | else if (depth == 0) {
|
---|
438 | // Just this page.
|
---|
439 | }
|
---|
440 | else if (depth > 0) {
|
---|
441 | // Recursion to the specified depth.
|
---|
442 | args.add("-r");
|
---|
443 | args.add("-l");
|
---|
444 | args.add("" + depth + ""); // Hacky
|
---|
445 | }
|
---|
446 |
|
---|
447 | if(previous_state == PAUSED) {
|
---|
448 | args.add("-nc");
|
---|
449 | args.add("-c");
|
---|
450 | }
|
---|
451 |
|
---|
452 | if(proxy_user != null) {
|
---|
453 | args.add("--proxy-user=" + proxy_user);
|
---|
454 | args.add("--proxy-passwd=" + proxy_pass);
|
---|
455 | }
|
---|
456 |
|
---|
457 | if(page_requisites) {
|
---|
458 | args.add("-p");
|
---|
459 | }
|
---|
460 |
|
---|
461 | if(quiet) {
|
---|
462 | args.add("-q");
|
---|
463 | }
|
---|
464 |
|
---|
465 | if(other_hosts) {
|
---|
466 | args.add("-H");
|
---|
467 | }
|
---|
468 |
|
---|
469 | args.add(initial.toString());
|
---|
470 |
|
---|
471 | DebugStream.println("Calling wget ");
|
---|
472 | for(Enumeration e = args.elements(); e.hasMoreElements();) {
|
---|
473 | DebugStream.println(e.nextElement() + " ");
|
---|
474 | }
|
---|
475 | DebugStream.println("");
|
---|
476 |
|
---|
477 | // Run home to mummy.
|
---|
478 | int value = mummy.wget(args.size(), args.toArray(), debug);
|
---|
479 |
|
---|
480 | // If we've got to here and the state isn't STOPPED then the job is complete.
|
---|
481 | if(state == RUNNING) {
|
---|
482 | progress.mirrorComplete();
|
---|
483 | previous_state = state;
|
---|
484 | state = COMPLETE;
|
---|
485 | }
|
---|
486 | }
|
---|
487 |
|
---|
488 | /** Called by the WGet native code when the current download is
|
---|
489 | * completed. In turn all download listeners are informed.
|
---|
490 | */
|
---|
491 | public void downloadComplete() {
|
---|
492 | progress.downloadComplete();
|
---|
493 | url = null;
|
---|
494 | current_url = null;
|
---|
495 | }
|
---|
496 |
|
---|
497 |
|
---|
498 | public void downloadComplete(String current_file_downloading)
|
---|
499 | {
|
---|
500 | progress.downloadComplete();
|
---|
501 | DebugStream.println("Download complete: " + current_file_downloading);
|
---|
502 | }
|
---|
503 |
|
---|
504 |
|
---|
505 | /** Called by the WGet native code when the requested download returns
|
---|
506 | * a status code other than 200.
|
---|
507 | */
|
---|
508 | public void downloadFailed() {
|
---|
509 | failed_urls.add(current_url); // It is the current url that failed
|
---|
510 | progress.downloadFailed();
|
---|
511 | DebugStream.println("Download failed: " + current_url);
|
---|
512 | }
|
---|
513 |
|
---|
514 | /**
|
---|
515 | */
|
---|
516 | public void downloadWarning() {
|
---|
517 | progress.downloadWarning();
|
---|
518 | }
|
---|
519 |
|
---|
520 |
|
---|
521 | /**
|
---|
522 | * @return A String representing the initial urls host (root node
|
---|
523 | * of tree that we are mirroring).
|
---|
524 | */
|
---|
525 | public String getHost() {
|
---|
526 | return url.getHost();
|
---|
527 | }
|
---|
528 |
|
---|
529 | public AppendLineOnlyFileDocument getLogDocument() {
|
---|
530 | return download_log;
|
---|
531 | }
|
---|
532 |
|
---|
533 | /**
|
---|
534 | * @return Returns the progress bar associated with this job.
|
---|
535 | */
|
---|
536 | public DownloadProgressBar getProgressBar() {
|
---|
537 | return progress;
|
---|
538 | }
|
---|
539 |
|
---|
540 | /** Called to discover if the user wanted this thread to run or if
|
---|
541 | * it is paused.
|
---|
542 | * @return An int representing the current DownloadJob state.
|
---|
543 | */
|
---|
544 | public int getState() {
|
---|
545 | return state;
|
---|
546 | }
|
---|
547 |
|
---|
548 | /** Returns the current state of the stop flag for this job.
|
---|
549 | * @return A boolean representing whether the user has requested to
|
---|
550 | * stop.
|
---|
551 | */
|
---|
552 | public boolean hasSignalledStop() {
|
---|
553 | if(state == DownloadJob.STOPPED || state == DownloadJob.PAUSED ||
|
---|
554 | state == DownloadJob.COMPLETE) {
|
---|
555 | return true;
|
---|
556 | }
|
---|
557 | return false;
|
---|
558 | }
|
---|
559 |
|
---|
560 | public void setState(int state) {
|
---|
561 | previous_state = this.state;
|
---|
562 | this.state = state;
|
---|
563 | }
|
---|
564 |
|
---|
565 | /** A convinence call.
|
---|
566 | * @return A String representing the url of the initial url (root node of the mirrored tree).
|
---|
567 | */
|
---|
568 | public String toString() {
|
---|
569 | return initial.toString();
|
---|
570 | }
|
---|
571 |
|
---|
572 | /** Called by the WGet native code to signal the current progress of
|
---|
573 | * downloading.
|
---|
574 | * @param current A long representing the number of bytes that have
|
---|
575 | * been downloaded since the last update.
|
---|
576 | * @param expected A long representing the total number of bytes
|
---|
577 | * expected for this download.
|
---|
578 | */
|
---|
579 | public void updateProgress(long current, long expected) {
|
---|
580 | progress.updateProgress(current, expected);
|
---|
581 | }
|
---|
582 | }
|
---|