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LaunchUtils | 44 | 258 | 112 |
1 | /* | |
2 | * Jalview - A Sequence Alignment Editor and Viewer ($$Version-Rel$$) | |
3 | * Copyright (C) $$Year-Rel$$ The Jalview Authors | |
4 | * | |
5 | * This file is part of Jalview. | |
6 | * | |
7 | * Jalview is free software: you can redistribute it and/or | |
8 | * modify it under the terms of the GNU General Public License | |
9 | * as published by the Free Software Foundation, either version 3 | |
10 | * of the License, or (at your option) any later version. | |
11 | * | |
12 | * Jalview is distributed in the hope that it will be useful, but | |
13 | * WITHOUT ANY WARRANTY; without even the implied warranty | |
14 | * of MERCHANTABILITY or FITNESS FOR A PARTICULAR | |
15 | * PURPOSE. See the GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with Jalview. If not, see <http://www.gnu.org/licenses/>. | |
19 | * The Jalview Authors are detailed in the 'AUTHORS' file. | |
20 | */ | |
21 | package jalview.util; | |
22 | ||
23 | import java.io.File; | |
24 | import java.io.FileInputStream; | |
25 | import java.io.FileNotFoundException; | |
26 | import java.io.IOException; | |
27 | import java.io.InputStream; | |
28 | import java.lang.management.ManagementFactory; | |
29 | import java.net.MalformedURLException; | |
30 | import java.net.URISyntaxException; | |
31 | import java.net.URL; | |
32 | import java.util.ArrayList; | |
33 | import java.util.Arrays; | |
34 | import java.util.HashSet; | |
35 | import java.util.List; | |
36 | import java.util.Locale; | |
37 | import java.util.Properties; | |
38 | import java.util.Set; | |
39 | import java.util.concurrent.TimeUnit; | |
40 | import java.util.jar.Attributes; | |
41 | import java.util.jar.JarInputStream; | |
42 | import java.util.jar.Manifest; | |
43 | ||
44 | public class LaunchUtils | |
45 | { | |
46 | // setting these is LaunchUtils so don't need to import Platform | |
47 | public final static boolean isMac = System.getProperty("os.name") | |
48 | .indexOf("Mac") > -1; | |
49 | ||
50 | public final static boolean isWindows = System.getProperty("os.name") | |
51 | .indexOf("Win") > -1; | |
52 | ||
53 | private static boolean isJS = /** @j2sNative true || */ | |
54 | false; | |
55 | ||
56 | public static final String LOGFILE_HANDOVER = "LOGFILE_HANDOVER"; | |
57 | ||
58 | 0 | public static void loadChannelProps(File dir) |
59 | { | |
60 | 0 | ChannelProperties.loadProps(dir); |
61 | } | |
62 | ||
63 | private static Properties userPreferences = null; | |
64 | ||
65 | 0 | public static String getUserPreference(String key) |
66 | { | |
67 | 0 | if (userPreferences == null) |
68 | { | |
69 | 0 | String channelPrefsFilename = ChannelProperties |
70 | .getProperty("preferences.filename"); | |
71 | 0 | if (channelPrefsFilename == null) |
72 | { | |
73 | 0 | return null; |
74 | } | |
75 | 0 | File propertiesFile = new File(System.getProperty("user.home"), |
76 | channelPrefsFilename); | |
77 | 0 | if (!propertiesFile.exists()) |
78 | { | |
79 | 0 | return null; |
80 | } | |
81 | 0 | try |
82 | { | |
83 | 0 | userPreferences = new Properties(); |
84 | 0 | userPreferences.load(new FileInputStream(propertiesFile)); |
85 | } catch (FileNotFoundException e) | |
86 | { | |
87 | // didn't find user preferences file | |
88 | 0 | return null; |
89 | } catch (IOException e) | |
90 | { | |
91 | 0 | ErrorLog.errPrintln(e.getMessage()); |
92 | 0 | return null; |
93 | } | |
94 | } | |
95 | 0 | return userPreferences.getProperty(key); |
96 | } | |
97 | ||
98 | 0 | public static boolean getBooleanUserPreference(String key) |
99 | { | |
100 | 0 | return Boolean.parseBoolean(getUserPreference(key)); |
101 | } | |
102 | ||
103 | public static int JAVA_COMPILE_VERSION = 0; | |
104 | ||
105 | 104 | public static int getJavaCompileVersion() |
106 | { | |
107 | 104 | if (LaunchUtils.isJS) |
108 | { | |
109 | 0 | return -1; |
110 | } | |
111 | 104 | else if (JAVA_COMPILE_VERSION > 0) |
112 | { | |
113 | 0 | return JAVA_COMPILE_VERSION; |
114 | } | |
115 | 104 | String buildDetails = "jar:".concat(LaunchUtils.class |
116 | .getProtectionDomain().getCodeSource().getLocation().toString() | |
117 | .concat("!" + "/.build_properties")); | |
118 | 104 | try |
119 | { | |
120 | 104 | URL localFileURL = new URL(buildDetails); |
121 | 104 | InputStream in = HttpUtils.openStream(localFileURL); |
122 | 0 | Properties buildProperties = new Properties(); |
123 | 0 | buildProperties.load(in); |
124 | 0 | in.close(); |
125 | 0 | String JCV = buildProperties.getProperty("JAVA_COMPILE_VERSION", |
126 | null); | |
127 | 0 | if (JCV == null) |
128 | { | |
129 | 0 | ErrorLog.errPrintln( |
130 | "Could not obtain JAVA_COMPILE_VERSION for comparison"); | |
131 | 0 | return -2; |
132 | } | |
133 | 0 | JAVA_COMPILE_VERSION = Integer.parseInt(JCV); |
134 | } catch (MalformedURLException e) | |
135 | { | |
136 | 0 | ErrorLog.errPrintln("Could not find " + buildDetails); |
137 | 0 | return -3; |
138 | } catch (IOException e) | |
139 | { | |
140 | 104 | ErrorLog.errPrintln("Could not load " + buildDetails); |
141 | 104 | return -4; |
142 | } catch (NumberFormatException e) | |
143 | { | |
144 | 0 | ErrorLog.errPrintln("Could not parse JAVA_COMPILE_VERSION"); |
145 | 0 | return -5; |
146 | } | |
147 | ||
148 | 0 | return JAVA_COMPILE_VERSION; |
149 | } | |
150 | ||
151 | public static int JAVA_VERSION = 0; | |
152 | ||
153 | 516 | public static int getJavaVersion() |
154 | { | |
155 | 516 | if (LaunchUtils.isJS) |
156 | { | |
157 | 0 | return -1; |
158 | } | |
159 | 516 | else if (JAVA_VERSION > 0) |
160 | { | |
161 | 462 | return JAVA_VERSION; |
162 | } | |
163 | 54 | try |
164 | { | |
165 | 54 | String JV = System.getProperty("java.version"); |
166 | 54 | if (JV == null) |
167 | { | |
168 | 0 | ErrorLog.errPrintln("Could not obtain java.version for comparison"); |
169 | 0 | return -2; |
170 | } | |
171 | 54 | if (JV.startsWith("1.")) |
172 | { | |
173 | 0 | JV = JV.substring(2); |
174 | } | |
175 | 54 | JAVA_VERSION = JV.indexOf(".") == -1 ? Integer.parseInt(JV) |
176 | : Integer.parseInt(JV.substring(0, JV.indexOf("."))); | |
177 | } catch (NumberFormatException e) | |
178 | { | |
179 | 0 | ErrorLog.errPrintln("Could not parse java.version"); |
180 | 0 | return -3; |
181 | } | |
182 | 54 | return JAVA_VERSION; |
183 | } | |
184 | ||
185 | 0 | public static String getJarPath(Class c) |
186 | { | |
187 | 0 | try |
188 | { | |
189 | 0 | return c.getProtectionDomain().getCodeSource().getLocation().toURI() |
190 | .getPath(); | |
191 | } catch (URISyntaxException e) | |
192 | { | |
193 | 0 | ErrorLog.errPrintln("Problem with class source location"); |
194 | 0 | return null; |
195 | } | |
196 | } | |
197 | ||
198 | 104 | public static boolean checkJavaVersion() |
199 | { | |
200 | 104 | if (LaunchUtils.isJS) |
201 | { | |
202 | 0 | return true; |
203 | } | |
204 | 104 | String buildDetails = "jar:".concat(LaunchUtils.class |
205 | .getProtectionDomain().getCodeSource().getLocation().toString() | |
206 | .concat("!" + "/.build_properties")); | |
207 | ||
208 | 104 | int java_compile_version = getJavaCompileVersion(); |
209 | 104 | int java_version = getJavaVersion(); |
210 | ||
211 | 104 | if (java_compile_version <= 0 || java_version <= 0) |
212 | { | |
213 | 104 | ErrorLog.errPrintln("Could not make Java version check"); |
214 | 104 | return true; |
215 | } | |
216 | // Warn if these java.version and JAVA_COMPILE_VERSION conditions exist | |
217 | // Usually this means a Java 11 compiled JAR being run by a Java 11 JVM | |
218 | 0 | if (java_version >= 11 && java_compile_version < 11) |
219 | { | |
220 | 0 | return false; |
221 | } | |
222 | ||
223 | 0 | return true; |
224 | } | |
225 | ||
226 | 0 | public static String findJavaBin(boolean winConsole) |
227 | { | |
228 | 0 | return findJavaBin(System.getProperty("java.home"), winConsole, true, |
229 | true); | |
230 | } | |
231 | ||
232 | 0 | public static String findJavaBin(boolean winConsole, |
233 | boolean applicationName, boolean generic) | |
234 | { | |
235 | 0 | return findJavaBin(System.getProperty("java.home"), winConsole, |
236 | applicationName, generic); | |
237 | } | |
238 | ||
239 | /* | |
240 | * Returns a string path to the most likely java binary wanted to run this | |
241 | * installation of Jalview. | |
242 | * | |
243 | * @param javaHome Try this javaHome dir (defaults to the running java.home). | |
244 | * @param winConsole whether to use java.exe (console) in preference to javaw.exe | |
245 | * (only affects Windows). | |
246 | * @param applicationName Look to see if the Jalview application name symbolic link is present and use it. | |
247 | * @param generic Return a generic java command if not found. | |
248 | */ | |
249 | 0 | public static String findJavaBin(String javaHome, boolean winConsole, |
250 | boolean applicationName, boolean generic) | |
251 | { | |
252 | 0 | String javaBin = null; |
253 | 0 | final String javaExe = winConsole ? "java.exe" : "javaw.exe"; |
254 | 0 | final String java = "java"; |
255 | ||
256 | 0 | if (javaHome != null) |
257 | { | |
258 | 0 | String propertyAppName = null; |
259 | 0 | String appName = null; |
260 | // property "channel.app_name" is set by install4j when launching getdown | |
261 | 0 | if (applicationName) |
262 | { | |
263 | 0 | propertyAppName = System.getProperty("channel.app_name"); |
264 | 0 | appName = (propertyAppName != null && propertyAppName.length() > 0) |
265 | ? propertyAppName | |
266 | : ChannelProperties.getProperty("app_name"); | |
267 | } | |
268 | ||
269 | 0 | final String javaBinDir = javaHome + File.separator + "bin" |
270 | + File.separator; | |
271 | ||
272 | // appName and "Jalview" will not point to javaw.exe or java.exe but in | |
273 | // this case that's okay because the taskbar display name problem doesn't | |
274 | // manifest in Windows. See JAL-3820, JAL-4189. | |
275 | 0 | List<String> potentialJavaBin = new ArrayList<>(); |
276 | 0 | if (applicationName) |
277 | { | |
278 | 0 | if (appName != null) |
279 | { | |
280 | 0 | potentialJavaBin.add(appName); |
281 | } | |
282 | 0 | if (ChannelProperties.FALLBACK_APPNAME != null) |
283 | { | |
284 | 0 | potentialJavaBin.add(ChannelProperties.FALLBACK_APPNAME); |
285 | } | |
286 | } | |
287 | 0 | potentialJavaBin.add(java); |
288 | 0 | potentialJavaBin.add(javaExe); |
289 | 0 | for (String name : potentialJavaBin) |
290 | { | |
291 | 0 | if (name == null) |
292 | { | |
293 | 0 | continue; |
294 | } | |
295 | 0 | if (LaunchUtils.checkJVMSymlink(javaBinDir + name, winConsole)) |
296 | { | |
297 | 0 | javaBin = javaBinDir + name; |
298 | 0 | break; |
299 | } | |
300 | } | |
301 | } | |
302 | ||
303 | 0 | if (javaBin == null && generic) |
304 | { | |
305 | 0 | javaBin = LaunchUtils.isWindows ? javaExe : java; |
306 | } | |
307 | ||
308 | 0 | return javaBin; |
309 | } | |
310 | ||
311 | /* | |
312 | * checkJVMSymlink returns true if the path in testBin *is* a java binary, or | |
313 | * points to a java binary. | |
314 | * @param testBin The binary or symbolic link to check | |
315 | * @param winConsole whether we are in/want a Windows console (only relevant for Windows, | |
316 | * determines whether we use java.exe or javaw.exe) | |
317 | */ | |
318 | 0 | private static boolean checkJVMSymlink(String testBin, boolean winConsole) |
319 | { | |
320 | 0 | File testBinFile = new File(testBin); |
321 | 0 | if (!testBinFile.exists()) |
322 | { | |
323 | 0 | return false; |
324 | } | |
325 | 0 | File targetFile = null; |
326 | 0 | try |
327 | { | |
328 | 0 | targetFile = testBinFile.getCanonicalFile(); |
329 | } catch (IOException e) | |
330 | { | |
331 | 0 | return false; |
332 | } | |
333 | 0 | final String javaExe = winConsole ? "java.exe" : "javaw.exe"; |
334 | 0 | if (targetFile != null && ("java".equals(targetFile.getName()) |
335 | || javaExe.equals(targetFile.getName()))) | |
336 | { | |
337 | 0 | return true; |
338 | } | |
339 | 0 | return false; |
340 | } | |
341 | ||
342 | /** | |
343 | * Create a java command that matches the currently running java process and | |
344 | * optionally remove/add some JVM and application parameters. | |
345 | * | |
346 | * @param String | |
347 | * javaBinary The java binary to use. null uses the same as current | |
348 | * process. | |
349 | * @param String[] | |
350 | * removeJvmArguments The (start of) JVM arguments to remove. | |
351 | * @param String[] | |
352 | * addJvmArguments JVM arguments to add. | |
353 | * @param String[] | |
354 | * prependToClasspath Add these dirs to the start of the classpath | |
355 | * @param String[] | |
356 | * appendToClasspath Add these dirs to the end of the classpath | |
357 | * @param String[] | |
358 | * deleteFromClasspath Remove these dirs from the existing classpath | |
359 | * @param String | |
360 | * startClass The name of the start class if different. null if the | |
361 | * same. | |
362 | * @param String[] | |
363 | * removeAppArguments The (start of) application arguments to remove. | |
364 | * @param String[] | |
365 | * addAppArguments Application arguments to add. | |
366 | * @param boolean | |
367 | * terminate Flag to terminate this process after starting new | |
368 | * process. | |
369 | */ | |
370 | 0 | public static int startNewJvm(String javaBinary, |
371 | List<String> removeJvmArguments, List<String> addJvmArguments, | |
372 | List<String> prependToClasspath, List<String> appendToClasspath, | |
373 | List<String> removeFromClasspath, String startClass, | |
374 | List<String> removeAppArguments, List<String> addAppArguments, | |
375 | List<String> appArguments, boolean launcherprint, | |
376 | boolean launcherwait, boolean launcherstop, boolean debug, | |
377 | boolean quiet) | |
378 | { | |
379 | 0 | if (javaBinary == null) |
380 | { | |
381 | 0 | javaBinary = findJavaBin(false, true, true); |
382 | } | |
383 | ||
384 | 0 | List<String> classpathDirs = new ArrayList<>(); |
385 | 0 | if (prependToClasspath != null) |
386 | { | |
387 | 0 | classpathDirs.addAll(prependToClasspath); |
388 | } | |
389 | ||
390 | 0 | String classpath = ManagementFactory.getRuntimeMXBean().getClassPath(); |
391 | 0 | if (removeFromClasspath != null) |
392 | { | |
393 | 0 | Set<String> removeCp = new HashSet<>(); |
394 | 0 | for (String dcp : removeFromClasspath) |
395 | { | |
396 | 0 | try |
397 | { | |
398 | 0 | String canPath = new File(dcp).getCanonicalPath(); |
399 | 0 | removeCp.add(canPath); |
400 | } catch (IOException e) | |
401 | { | |
402 | 0 | ErrorLog.errPrintln( |
403 | "Problem getting canonical path. " + e.getMessage()); | |
404 | } | |
405 | } | |
406 | 0 | for (String cp : classpath.split(File.pathSeparator)) |
407 | { | |
408 | 0 | try |
409 | { | |
410 | 0 | String canPath = new File(cp).getCanonicalPath(); |
411 | 0 | if (!removeCp.contains(canPath)) |
412 | { | |
413 | 0 | classpathDirs.add(cp); |
414 | } | |
415 | } catch (IOException e) | |
416 | { | |
417 | 0 | ErrorLog.errPrintln( |
418 | "Problem getting canonical path. " + e.getMessage()); | |
419 | } | |
420 | } | |
421 | } | |
422 | else | |
423 | { | |
424 | 0 | classpathDirs |
425 | .addAll(Arrays.asList(classpath.split(File.pathSeparator))); | |
426 | } | |
427 | 0 | if (appendToClasspath != null) |
428 | { | |
429 | 0 | classpathDirs.addAll(appendToClasspath); |
430 | } | |
431 | ||
432 | 0 | List<String> jvmArguments = new ArrayList<>(); |
433 | 0 | List<String> originalJvmArguments = ManagementFactory.getRuntimeMXBean() |
434 | .getInputArguments(); | |
435 | 0 | if (removeJvmArguments != null) |
436 | { | |
437 | 0 | for (String jvmArg : originalJvmArguments) |
438 | { | |
439 | 0 | boolean addArg = true; |
440 | 0 | for (String rmArg : removeJvmArguments) |
441 | { | |
442 | 0 | if (jvmArg.startsWith(rmArg)) |
443 | { | |
444 | 0 | addArg = false; |
445 | 0 | break; |
446 | } | |
447 | } | |
448 | 0 | if (addArg) |
449 | { | |
450 | 0 | jvmArguments.add(jvmArg); |
451 | } | |
452 | } | |
453 | } | |
454 | else | |
455 | { | |
456 | 0 | jvmArguments.addAll(originalJvmArguments); |
457 | } | |
458 | 0 | if (addJvmArguments != null) |
459 | { | |
460 | 0 | jvmArguments.addAll(addJvmArguments); |
461 | } | |
462 | ||
463 | 0 | if (startClass == null) |
464 | { | |
465 | // this isn't always reliable | |
466 | 0 | startClass = System.getProperty("sun.java.command"); |
467 | } | |
468 | ||
469 | 0 | List<String> applicationArguments = new ArrayList<>(); |
470 | 0 | if (removeAppArguments != null) |
471 | { | |
472 | 0 | Set<String> removeArgs = new HashSet<>(removeAppArguments); |
473 | 0 | for (String appArg : appArguments) |
474 | { | |
475 | 0 | if (!removeArgs.contains(removeArgs)) |
476 | { | |
477 | 0 | applicationArguments.add(appArg); |
478 | } | |
479 | } | |
480 | } | |
481 | else | |
482 | { | |
483 | 0 | applicationArguments.addAll(appArguments); |
484 | } | |
485 | 0 | if (addAppArguments != null) |
486 | { | |
487 | 0 | applicationArguments.addAll(addAppArguments); |
488 | } | |
489 | ||
490 | 0 | List<String> command = new ArrayList<>(); |
491 | // java command | |
492 | 0 | command.add(javaBinary); |
493 | ||
494 | // classpath | |
495 | 0 | command.add("-cp"); |
496 | 0 | command.add(String.join(File.pathSeparator, classpathDirs)); |
497 | ||
498 | // jvm args | |
499 | 0 | command.addAll(jvmArguments); |
500 | ||
501 | // start class | |
502 | 0 | command.add(startClass); |
503 | ||
504 | // application args | |
505 | 0 | command.addAll(applicationArguments); |
506 | ||
507 | 0 | return runProcess(command, launcherprint, launcherwait, launcherstop, |
508 | debug, quiet); | |
509 | } | |
510 | ||
511 | 0 | private static int runProcess(List<String> command, boolean launcherprint, |
512 | boolean launcherwait, boolean launcherstop, boolean debug, | |
513 | boolean quiet) | |
514 | { | |
515 | 0 | final ProcessBuilder builder = new ProcessBuilder(command); |
516 | 0 | int exitValue = -1; |
517 | ||
518 | 0 | if (Boolean.parseBoolean(System.getProperty("launcherprint", "false")) |
519 | || launcherprint) | |
520 | { | |
521 | 0 | syserr(debug, quiet, |
522 | "COMMAND: " + String.join(" ", builder.command())); | |
523 | } | |
524 | ||
525 | 0 | if (Boolean.parseBoolean(System.getProperty("launcherstop", "false")) |
526 | || (debug && launcherstop)) | |
527 | { | |
528 | 0 | syserr(debug, quiet, |
529 | "System property 'launcherstop' is set and not 'false'. Exiting."); | |
530 | 0 | System.exit(0); |
531 | } | |
532 | 0 | try |
533 | { | |
534 | 0 | builder.inheritIO(); |
535 | 0 | Process process = builder.start(); |
536 | 0 | if (launcherwait) |
537 | { | |
538 | 0 | syserr(debug, quiet, "Launching application process"); |
539 | 0 | exitValue = process.waitFor(); |
540 | 0 | syserr(debug, quiet, |
541 | "Application process return with value " + exitValue); | |
542 | } | |
543 | else | |
544 | { | |
545 | 0 | int waitInt = 0; |
546 | 0 | syserr(debug, quiet, |
547 | "Wait time for application process is " + waitInt + "ms"); | |
548 | 0 | if (process.waitFor(waitInt, TimeUnit.MILLISECONDS)) |
549 | { | |
550 | 0 | exitValue = process.exitValue(); |
551 | } | |
552 | else | |
553 | { | |
554 | 0 | exitValue = -2; |
555 | } | |
556 | } | |
557 | 0 | syserr(debug, quiet, "Launcher process ending"); |
558 | } catch (IOException e) | |
559 | { | |
560 | 0 | if (e.getMessage().toLowerCase(Locale.ROOT).contains("memory")) |
561 | { | |
562 | 0 | syserr(true, quiet, "Caught a memory exception: " + e.getMessage()); |
563 | // Probably the "Cannot allocate memory" error, try without the memory | |
564 | // setting | |
565 | 0 | ArrayList<String> commandNoMem = new ArrayList<>(); |
566 | 0 | for (int i = 0; i < command.size(); i++) |
567 | { | |
568 | 0 | if (!command.get(i).startsWith("-Xmx")) |
569 | { | |
570 | 0 | commandNoMem.add(command.get(i)); |
571 | } | |
572 | } | |
573 | 0 | final ProcessBuilder builderNoMem = new ProcessBuilder( |
574 | commandNoMem); | |
575 | 0 | syserr(true, quiet, "Command without memory setting: " |
576 | + String.join(" ", builderNoMem.command())); | |
577 | 0 | try |
578 | { | |
579 | 0 | builderNoMem.inheritIO(); |
580 | 0 | Process processNoMem = builderNoMem.start(); |
581 | 0 | exitValue = processNoMem.waitFor(); |
582 | } catch (Exception ex) | |
583 | { | |
584 | 0 | ex.printStackTrace(); |
585 | } | |
586 | } | |
587 | else | |
588 | { | |
589 | 0 | e.printStackTrace(); |
590 | } | |
591 | } catch (Exception e) | |
592 | { | |
593 | 0 | e.printStackTrace(); |
594 | } | |
595 | 0 | return exitValue; |
596 | } | |
597 | ||
598 | /** | |
599 | * Look for Implementation-Version in two jar manifests and compare according | |
600 | * to the getdown-launcher version spec (1.8.3-1.4.0_JVL or _FJVL) returns -1 | |
601 | * if f0 is newer (or more "valid"), +1 if f1 is newer (or more "valid"), 0 if | |
602 | * the same or both equally "invalid" | |
603 | * | |
604 | * @param f0 | |
605 | * @param f1 | |
606 | * @return int | |
607 | */ | |
608 | 12 | public static int compareGetdownLauncherJarVersions(File f0, File f1) |
609 | { | |
610 | 12 | if (!f0.exists() && !f1.exists()) |
611 | { | |
612 | 0 | return 0; |
613 | } | |
614 | 12 | if (!f0.exists()) |
615 | { | |
616 | 0 | return -1; |
617 | } | |
618 | 12 | if (!f1.exists()) |
619 | { | |
620 | 0 | return 1; |
621 | } | |
622 | 12 | String v0 = getJarImplementationVersion(f0); |
623 | 12 | String v1 = getJarImplementationVersion(f1); |
624 | 12 | syserr(v0 != null && !v0.equals(v1), false, |
625 | "Got launcher versions '" + v0 + "' and '" + v1 + "'"); | |
626 | 12 | return compareGetdownLauncherJarVersions(v0, v1); |
627 | } | |
628 | ||
629 | 26 | public static int compareGetdownLauncherJarVersions(String v0, String v1) |
630 | { | |
631 | 26 | if (v0 == null && v1 == null) |
632 | { | |
633 | 0 | return 0; |
634 | } | |
635 | 26 | if (v0 == null) |
636 | { | |
637 | 0 | return -1; |
638 | } | |
639 | 26 | if (v1 == null) |
640 | { | |
641 | 0 | return 1; |
642 | } | |
643 | ||
644 | // remove the subscript | |
645 | 26 | if (v0.endsWith("JVL")) |
646 | { | |
647 | 14 | v0 = v0.substring(0, v0.lastIndexOf('_')); |
648 | } | |
649 | 26 | if (v1.endsWith("JVL")) |
650 | { | |
651 | 14 | v1 = v1.substring(0, v1.lastIndexOf('_')); |
652 | } | |
653 | ||
654 | 26 | String[] v0parts = v0.split("-"); |
655 | 26 | String[] v1parts = v1.split("-"); |
656 | ||
657 | 26 | int compare = 0; |
658 | 49 | for (int j = 0; j < Math.min(v0parts.length, v1parts.length); j++) |
659 | { | |
660 | 40 | compare = compareVersions(v0parts[j], v1parts[j]); |
661 | 40 | if (compare != 0) |
662 | { | |
663 | 17 | return compare; |
664 | } | |
665 | } | |
666 | ||
667 | 9 | return v0parts.length - v1parts.length; |
668 | } | |
669 | ||
670 | /** | |
671 | * comparing versions numbers of the form 1.2.3.4...n ONLY returns 0 if v0 and | |
672 | * v1 are the same, a negative number if v0 < v1 and a positive number if v0 > | |
673 | * v1. The number returned does NOT show how far apart the version numbers | |
674 | * are. | |
675 | */ | |
676 | 49 | public static int compareVersions(String v0, String v1) |
677 | { | |
678 | 49 | if (v0 == null && v1 == null) |
679 | { | |
680 | 0 | return 0; |
681 | } | |
682 | 49 | if (v0 == null) |
683 | { | |
684 | 0 | return -1; |
685 | } | |
686 | 49 | if (v1 == null) |
687 | { | |
688 | 0 | return 1; |
689 | } | |
690 | 49 | String[] v0dots = v0.split("\\."); |
691 | 49 | String[] v1dots = v1.split("\\."); |
692 | 49 | int compare = 0; |
693 | 159 | for (int i = 0; i < Math.min(v0dots.length, v1dots.length); i++) |
694 | { | |
695 | 129 | if (!v0dots[i].equals(v1dots[i])) // avoids unnecessary |
696 | // NumberFormatException | |
697 | { | |
698 | 19 | try |
699 | { | |
700 | 19 | compare = Integer.parseInt(v0dots[i]) |
701 | - Integer.parseInt(v1dots[i]); | |
702 | } catch (NumberFormatException e) | |
703 | { | |
704 | 4 | syserr(true, false, "Couldn't parse one of '" + v0dots[i] |
705 | + "' or '" + v1dots[i] + "': " + e.getMessage()); | |
706 | 4 | syserr(true, false, "Comparing as strings."); |
707 | 4 | compare = v0dots[i].compareTo(v1dots[i]); |
708 | } | |
709 | 19 | if (compare != 0) |
710 | { | |
711 | 19 | return compare; |
712 | } | |
713 | } | |
714 | } | |
715 | // all numbers match up to min length. If one has more dots, assume it's | |
716 | // a greater version (e.g. 1.3.2 > 1.3) | |
717 | 30 | return v0dots.length - v1dots.length; |
718 | } | |
719 | ||
720 | 28 | public static String getJarImplementationVersion(File jarFile) |
721 | { | |
722 | 28 | String implementationVersion = null; |
723 | 28 | try |
724 | { | |
725 | 28 | JarInputStream j0 = new JarInputStream(new FileInputStream(jarFile)); |
726 | 28 | Manifest m0 = j0.getManifest(); |
727 | 28 | if (m0 == null) |
728 | { | |
729 | 0 | System.err.println("No manifest in " + jarFile.getAbsolutePath()); |
730 | } | |
731 | else | |
732 | { | |
733 | 28 | implementationVersion = m0.getMainAttributes() |
734 | .getValue(Attributes.Name.IMPLEMENTATION_VERSION); | |
735 | } | |
736 | } catch (IOException e) | |
737 | { | |
738 | 0 | System.err.println("Exception opening " + jarFile.getAbsolutePath() |
739 | + " to check version: " + e.getMessage()); | |
740 | } | |
741 | 28 | return implementationVersion; |
742 | } | |
743 | ||
744 | 20 | public static void syserr(boolean debug, boolean quiet, String message) |
745 | { | |
746 | 20 | if (debug && !quiet) |
747 | { | |
748 | 16 | ErrorLog.errPrintln("DEBUG - " + message); |
749 | } | |
750 | } | |
751 | } |