1 /*
2 * Copyright (c) 2010, 2015, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package com.sun.javafx.application;
27
28 import javafx.application.Application;
29 import javafx.application.Preloader;
30 import javafx.application.Preloader.ErrorNotification;
31 import javafx.application.Preloader.PreloaderNotification;
32 import javafx.application.Preloader.StateChangeNotification;
33 import javafx.stage.Stage;
34 import java.io.File;
35 import java.io.IOException;
36 import java.lang.reflect.Constructor;
37 import java.lang.reflect.InvocationTargetException;
38 import java.lang.reflect.Method;
39 import java.net.MalformedURLException;
40 import java.net.URL;
41 import java.net.URLClassLoader;
42 import java.security.AccessController;
43 import java.security.PrivilegedAction;
44 import java.util.ArrayList;
45 import java.util.LinkedList;
46 import java.util.List;
47 import java.util.concurrent.CountDownLatch;
48 import java.util.concurrent.atomic.AtomicBoolean;
49 import java.util.concurrent.atomic.AtomicReference;
50 import java.util.jar.Attributes;
51 import java.util.jar.JarFile;
52 import java.util.jar.Manifest;
53 import java.util.Base64;
54 import com.sun.javafx.jmx.MXExtension;
55 import com.sun.javafx.runtime.SystemProperties;
56
57 public class LauncherImpl {
58
59 /**
60 * When passed as launchMode to launchApplication, tells the method that
61 * launchName is the name of the JavaFX application class to launch.
62 */
63 public static final String LAUNCH_MODE_CLASS = "LM_CLASS";
64
65 /**
66 * When passed as launchMode to launchApplication, tells the method that
67 * launchName is a path to a JavaFX application jar file to be launched.
68 */
69 public static final String LAUNCH_MODE_JAR = "LM_JAR";
70
71 // set to true to debug launch issues from Java launcher
72 private static final boolean trace = false;
73
74 // set system property javafx.verbose to true to make the launcher noisy
75 private static final boolean verbose;
76
77 private static final String MF_MAIN_CLASS = "Main-Class";
78 private static final String MF_JAVAFX_MAIN = "JavaFX-Application-Class";
79 private static final String MF_JAVAFX_PRELOADER = "JavaFX-Preloader-Class";
80 private static final String MF_JAVAFX_CLASS_PATH = "JavaFX-Class-Path";
81 private static final String MF_JAVAFX_FEATURE_PROXY = "JavaFX-Feature-Proxy";
82 private static final String MF_JAVAFX_ARGUMENT_PREFIX = "JavaFX-Argument-";
83 private static final String MF_JAVAFX_PARAMETER_NAME_PREFIX = "JavaFX-Parameter-Name-";
84 private static final String MF_JAVAFX_PARAMETER_VALUE_PREFIX = "JavaFX-Parameter-Value-";
85
86 // Set to true to simulate a slow download progress
87 private static final boolean simulateSlowProgress = false;
88
89 // Ensure that launchApplication method is only called once
90 private static AtomicBoolean launchCalled = new AtomicBoolean(false);
91
92 // Flag indicating that the toolkit has been started
93 private static final AtomicBoolean toolkitStarted = new AtomicBoolean(false);
94
95 // Exception found during launching
96 private static volatile RuntimeException launchException = null;
97
98 // The current preloader, used for notification in the standalone
99 // launcher mode
100 private static Preloader currentPreloader = null;
101
102 // Saved preloader class from the launchApplicationWithArgs method (called
103 // from the Java 8 launcher). It is used in the case where we call main,
104 // which is turn calls into launchApplication.
105 private static Class<? extends Preloader> savedPreloaderClass = null;
106
107 // The following is used to determine whether the main() method
108 // has set the CCL in the case where main is called after the FX toolkit
109 // is started.
110 private static ClassLoader savedMainCcl = null;
111
112 static {
113 verbose = AccessController.doPrivileged((PrivilegedAction<Boolean>) () ->
114 Boolean.getBoolean("javafx.verbose"));
115 }
116
117 /**
118 * This method is called by the Application.launch method.
119 * It must not be called more than once or an exception will be thrown.
120 *
121 * Note that it is always called on a thread other than the FX application
122 * thread, since that thread is only created at startup.
123 *
124 * @param appClass application class
125 * @param args command line arguments
126 */
127 @SuppressWarnings("unchecked")
128 public static void launchApplication(final Class<? extends Application> appClass,
129 final String[] args) {
130
131 Class<? extends Preloader> preloaderClass = savedPreloaderClass;
132
133 if (preloaderClass == null) {
134 String preloaderByProperty = AccessController.doPrivileged((PrivilegedAction<String>) () ->
135 System.getProperty("javafx.preloader"));
136 if (preloaderByProperty != null) {
137 try {
138 preloaderClass = (Class<? extends Preloader>) Class.forName(preloaderByProperty,
139 false, appClass.getClassLoader());
140 } catch (Exception e) {
141 System.err.printf("Could not load preloader class '" + preloaderByProperty +
142 "', continuing without preloader.");
143 e.printStackTrace();
144 }
145 }
146 }
147
148 launchApplication(appClass, preloaderClass, args);
149 }
150
151 /**
152 * This method is called by the standalone launcher.
153 * It must not be called more than once or an exception will be thrown.
154 *
155 * Note that it is always called on a thread other than the FX application
156 * thread, since that thread is only created at startup.
157 *
158 * @param appClass application class
159 * @param preloaderClass preloader class, may be null
160 * @param args command line arguments
161 */
162 public static void launchApplication(final Class<? extends Application> appClass,
163 final Class<? extends Preloader> preloaderClass,
164 final String[] args) {
165
166 if (launchCalled.getAndSet(true)) {
167 throw new IllegalStateException("Application launch must not be called more than once");
168 }
169
170 if (! Application.class.isAssignableFrom(appClass)) {
171 throw new IllegalArgumentException("Error: " + appClass.getName()
172 + " is not a subclass of javafx.application.Application");
173 }
174
175 if (preloaderClass != null && ! Preloader.class.isAssignableFrom(preloaderClass)) {
176 throw new IllegalArgumentException("Error: " + preloaderClass.getName()
177 + " is not a subclass of javafx.application.Preloader");
178 }
179
180 // System.err.println("launch standalone app: preloader class = "
181 // + preloaderClass);
182
183 // Create a new Launcher thread and then wait for that thread to finish
184 final CountDownLatch launchLatch = new CountDownLatch(1);
185 Thread launcherThread = new Thread(() -> {
186 try {
187 launchApplication1(appClass, preloaderClass, args);
188 } catch (RuntimeException rte) {
189 launchException = rte;
190 } catch (Exception ex) {
191 launchException =
192 new RuntimeException("Application launch exception", ex);
193 } catch (Error err) {
194 launchException =
195 new RuntimeException("Application launch error", err);
196 } finally {
197 launchLatch.countDown();
198 }
199 });
200 launcherThread.setName("JavaFX-Launcher");
201 launcherThread.start();
202
203 // Wait for FX launcher thread to finish before returning to user
204 try {
205 launchLatch.await();
206 } catch (InterruptedException ex) {
207 throw new RuntimeException("Unexpected exception: ", ex);
208 }
209
210 if (launchException != null) {
211 throw launchException;
212 }
213 }
214
215 /**
216 * This method is called by the Java launcher. This allows us to be launched
217 * directly from the command line via "java -jar fxapp.jar" or
218 * "java -cp path some.fx.App". The launchMode argument must be one of
219 * "LM_CLASS" or "LM_JAR" or execution will abort with an error.
220 *
221 * @param launchName Either the path to a jar file or the application class
222 * name to launch
223 * @param launchMode The method of launching the application, either LM_JAR
224 * or LM_CLASS
225 * @param args Application arguments from the command line
226 */
227 public static void launchApplication(final String launchName,
228 final String launchMode,
229 final String[] args) {
230
231 if (verbose) {
232 System.err.println("Java 8 launchApplication method: launchMode="
233 + launchMode);
234 }
235
236 /*
237 * For now, just open the jar and get JavaFX-Application-Class and
238 * JavaFX-Preloader and pass them to launchApplication. In the future
239 * we'll need to load requested jar files and set up the proxy
240 */
241 String mainClassName = null;
242 String preloaderClassName = null;
243 String[] appArgs = args;
244 ClassLoader appLoader = null;
245
246 if (launchMode.equals(LAUNCH_MODE_JAR)) {
247 Attributes jarAttrs = getJarAttributes(launchName);
248 if (jarAttrs == null) {
249 abort(null, "Can't get manifest attributes from jar");
250 }
251
252 // If we ever need to check JavaFX-Version, do that here...
253
254 // Support JavaFX-Class-Path, but warn that it's deprecated if used
255 String fxClassPath = jarAttrs.getValue(MF_JAVAFX_CLASS_PATH);
256 if (fxClassPath != null) {
257 if (fxClassPath.trim().length() == 0) {
258 fxClassPath = null;
259 } else {
260 if (verbose) {
261 System.err.println("WARNING: Application jar uses deprecated JavaFX-Class-Path attribute."
262 +" Please use Class-Path instead.");
263 }
264
265 /*
266 * create a new ClassLoader to pull in the requested jar files
267 * OK if it returns null, that just means we didn't need to load
268 * anything
269 */
270 appLoader = setupJavaFXClassLoader(new File(launchName), fxClassPath);
271 }
272 }
273
274 // Support JavaFX-Feature-Proxy (only supported setting is 'auto', anything else is ignored)
275 String proxySetting = jarAttrs.getValue(MF_JAVAFX_FEATURE_PROXY);
276 if (proxySetting != null && "auto".equals(proxySetting.toLowerCase())) {
277 trySetAutoProxy();
278 }
279
280 // process arguments and parameters if no args have been passed by the launcher
281 if (args.length == 0) {
282 appArgs = getAppArguments(jarAttrs);
283 }
284
285 // grab JavaFX-Application-Class
286 mainClassName = jarAttrs.getValue(MF_JAVAFX_MAIN);
287 if (mainClassName == null) {
288 // fall back on Main-Class if no JAC
289 mainClassName = jarAttrs.getValue(MF_MAIN_CLASS);
290 if (mainClassName == null) {
291 // Should not happen as the launcher enforces the presence of Main-Class
292 abort(null, "JavaFX jar manifest requires a valid JavaFX-Appliation-Class or Main-Class entry");
293 }
294 }
295 mainClassName = mainClassName.trim();
296
297 // grab JavaFX-Preloader-Class
298 preloaderClassName = jarAttrs.getValue(MF_JAVAFX_PRELOADER);
299 if (preloaderClassName != null) {
300 preloaderClassName = preloaderClassName.trim();
301 }
302 } else if (launchMode.equals(LAUNCH_MODE_CLASS)) {
303 mainClassName = launchName;
304 preloaderClassName = System.getProperty("javafx.preloader");
305 } else {
306 abort(new IllegalArgumentException("The launchMode argument must be one of LM_CLASS or LM_JAR"),
307 "Invalid launch mode: %1$s", launchMode);
308 }
309
310 if (mainClassName == null) {
311 abort(null, "No main JavaFX class to launch");
312 }
313
314 // check if we have to load through a custom classloader
315 if (appLoader != null) {
316 try {
317 // reload this class through the app classloader
318 Class<?> launcherClass = appLoader.loadClass(LauncherImpl.class.getName());
319
320 // then invoke the second part of this launcher using reflection
321 Method lawa = launcherClass.getMethod("launchApplicationWithArgs",
322 new Class[] { String.class, String.class, (new String[0]).getClass()});
323
324 // set the thread context class loader before we continue, or it won't load properly
325 Thread.currentThread().setContextClassLoader(appLoader);
326 lawa.invoke(null, new Object[] {mainClassName, preloaderClassName, appArgs});
327 } catch (Exception e) {
328 abort(e, "Exception while launching application");
329 }
330 } else {
331 launchApplicationWithArgs(mainClassName, preloaderClassName, appArgs);
332 }
333 }
334
335 // Must be public since we could be called from a different class loader
336 public static void launchApplicationWithArgs(final String mainClassName,
337 final String preloaderClassName, String[] args) {
338
339 try {
340 startToolkit();
341 } catch (InterruptedException ex) {
342 abort(ex, "Toolkit initialization error", mainClassName);
343 }
344
345 Class<? extends Application> appClass;
346 Class<? extends Preloader> preClass = null;
347 Class<?> tempAppClass = null;
348
349 final ClassLoader loader = Thread.currentThread().getContextClassLoader();
350 final AtomicReference<Class<?>> tmpClassRef = new AtomicReference<>();
351 final AtomicReference<Class<? extends Preloader>> preClassRef = new AtomicReference<>();
352 PlatformImpl.runAndWait(() -> {
353 Class<?> clz = null;
354 try {
355 clz = Class.forName(mainClassName, true, loader);
356 } catch (ClassNotFoundException cnfe) {
357 abort(cnfe, "Missing JavaFX application class %1$s", mainClassName);
358 }
359 tmpClassRef.set(clz);
360
361 if (preloaderClassName != null) {
362 try {
363 clz = Class.forName(preloaderClassName, true, loader);
364 } catch (ClassNotFoundException cnfe) {
365 abort(cnfe, "Missing JavaFX preloader class %1$s", preloaderClassName);
366 }
367
368 if (!Preloader.class.isAssignableFrom(clz)) {
369 abort(null, "JavaFX preloader class %1$s does not extend javafx.application.Preloader", clz.getName());
370 }
371 preClassRef.set(clz.asSubclass(Preloader.class));
372 }
373 });
374 preClass = preClassRef.get();
375 tempAppClass = tmpClassRef.get();
376
377 // Save the preloader class in a static field for later use when
378 // main calls back into launchApplication.
379 savedPreloaderClass = preClass;
380
381 // If there is a public static void main(String[]) method then call it
382 // otherwise just hand off to the other launchApplication method
383
384 Exception theEx = null;
385 try {
386 Method mainMethod = tempAppClass.getMethod("main",
387 new Class[] { (new String[0]).getClass() });
388 if (verbose) {
389 System.err.println("Calling main(String[]) method");
390 }
391 savedMainCcl = Thread.currentThread().getContextClassLoader();
392 mainMethod.invoke(null, new Object[] { args });
393 return;
394 } catch (NoSuchMethodException | IllegalAccessException ex) {
395 theEx = ex;
396 savedPreloaderClass = null;
397 if (verbose) {
398 System.err.println("WARNING: Cannot access application main method: " + ex);
399 }
400 } catch (InvocationTargetException ex) {
401 ex.printStackTrace();
402 abort(null, "Exception running application %1$s", tempAppClass.getName());
403 return;
404 }
405
406 // Verify appClass extends Application
407 if (!Application.class.isAssignableFrom(tempAppClass)) {
408 abort(theEx, "JavaFX application class %1$s does not extend javafx.application.Application", tempAppClass.getName());
409 }
410 appClass = tempAppClass.asSubclass(Application.class);
411
412 if (verbose) {
413 System.err.println("Launching application directly");
414 }
415 launchApplication(appClass, preClass, args);
416 }
417
418 private static URL fileToURL(File file) throws IOException {
419 return file.getCanonicalFile().toURI().toURL();
420 }
421
422 private static ClassLoader setupJavaFXClassLoader(File appJar, String fxClassPath) {
423 try {
424 File baseDir = appJar.getParentFile();
425 ArrayList jcpList = new ArrayList();
426
427 // Add in the jars from the JavaFX-Class-Path entry
428 // TODO: should check current classpath for duplicate entries and ignore them
429 String cp = fxClassPath;
430 if (cp != null) {
431 // these paths are relative to baseDir, which should be the
432 // directory containing the app jar file
433 while (cp.length() > 0) {
434 int pathSepIdx = cp.indexOf(" ");
435 if (pathSepIdx < 0) {
436 String pathElem = cp;
437 File f = (baseDir == null) ?
438 new File(pathElem) : new File(baseDir, pathElem);
439 if (f.exists()) {
440 jcpList.add(fileToURL(f));
441 } else if (verbose) {
442 System.err.println("Class Path entry \""+pathElem
443 +"\" does not exist, ignoring");
444 }
445 break;
446 } else if (pathSepIdx > 0) {
447 String pathElem = cp.substring(0, pathSepIdx);
448 File f = (baseDir == null) ?
449 new File(pathElem) : new File(baseDir, pathElem);
450 if (f.exists()) {
451 jcpList.add(fileToURL(f));
452 } else if (verbose) {
453 System.err.println("Class Path entry \""+pathElem
454 +"\" does not exist, ignoring");
455 }
456 }
457 cp = cp.substring(pathSepIdx + 1);
458 }
459 }
460
461 // don't bother if there's nothing to add
462 if (!jcpList.isEmpty()) {
463 ArrayList<URL> urlList = new ArrayList<URL>();
464
465 // prepend the existing classpath
466 // this will already have the app jar, so no need to worry about it
467 cp = System.getProperty("java.class.path");
468 if (cp != null) {
469 while (cp.length() > 0) {
470 int pathSepIdx = cp.indexOf(File.pathSeparatorChar);
471 if (pathSepIdx < 0) {
472 String pathElem = cp;
473 urlList.add(fileToURL(new File(pathElem)));
474 break;
475 } else if (pathSepIdx > 0) {
476 String pathElem = cp.substring(0, pathSepIdx);
477 urlList.add(fileToURL(new File(pathElem)));
478 }
479 cp = cp.substring(pathSepIdx + 1);
480 }
481 }
482
483 // we have to add jfxrt.jar to the new class loader, or the app won't load
484 URL jfxRtURL = LauncherImpl.class.getProtectionDomain().getCodeSource().getLocation();
485 urlList.add(jfxRtURL);
486
487 // and finally append the JavaFX-Class-Path entries
488 urlList.addAll(jcpList);
489
490 URL[] urls = (URL[])urlList.toArray(new URL[0]);
491 if (verbose) {
492 System.err.println("===== URL list");
493 for (int i = 0; i < urls.length; i++) {
494 System.err.println("" + urls[i]);
495 }
496 System.err.println("=====");
497 }
498 return new URLClassLoader(urls, null);
499 }
500 } catch (Exception ex) {
501 if (trace) {
502 System.err.println("Exception creating JavaFX class loader: "+ex);
503 ex.printStackTrace();
504 }
505 }
506 return null;
507 }
508
509 private static void trySetAutoProxy() {
510 // if explicit proxy settings are proxided we will skip autoproxy
511 // Note: we only check few most popular settings.
512 if (System.getProperty("http.proxyHost") != null
513 || System.getProperty("https.proxyHost") != null
514 || System.getProperty("ftp.proxyHost") != null
515 || System.getProperty("socksProxyHost") != null) {
516 if (verbose) {
517 System.out.println("Explicit proxy settings detected. Skip autoconfig.");
518 System.out.println(" http.proxyHost=" + System.getProperty("http.proxyHost"));
519 System.out.println(" https.proxyHost=" + System.getProperty("https.proxyHost"));
520 System.out.println(" ftp.proxyHost=" + System.getProperty("ftp.proxyHost"));
521 System.out.println(" socksProxyHost=" + System.getProperty("socksProxyHost"));
522 }
523 return;
524 }
525 if (System.getProperty("javafx.autoproxy.disable") != null) {
526 if (verbose) {
527 System.out.println("Disable autoproxy on request.");
528 }
529 return;
530 }
531
532 try {
533 Class sm = Class.forName("com.sun.deploy.services.ServiceManager");
534 Class params[] = {Integer.TYPE};
535 Method setservice = sm.getDeclaredMethod("setService", params);
536 String osname = System.getProperty("os.name");
537
538 String servicename;
539 if (osname.startsWith("Win")) {
540 servicename = "STANDALONE_TIGER_WIN32";
541 } else if (osname.contains("Mac")) {
542 servicename = "STANDALONE_TIGER_MACOSX";
543 } else {
544 servicename = "STANDALONE_TIGER_UNIX";
545 }
546 Object values[] = new Object[1];
547 Class pt = Class.forName("com.sun.deploy.services.PlatformType");
548 values[0] = pt.getField(servicename).get(null);
549 setservice.invoke(null, values);
550
551 Class dps = Class.forName(
552 "com.sun.deploy.net.proxy.DeployProxySelector");
553 Method m = dps.getDeclaredMethod("reset", new Class[0]);
554 m.invoke(null, new Object[0]);
555
556 if (verbose) {
557 System.out.println("Autoconfig of proxy is completed.");
558 }
559 } catch (Exception e) {
560 if (verbose) {
561 System.err.println("Failed to autoconfig proxy due to "+e);
562 }
563 if (trace) {
564 e.printStackTrace();
565 }
566 }
567 }
568
569 private static String decodeBase64(String inp) throws IOException {
570 return new String(Base64.getDecoder().decode(inp));
571 }
572
573 private static String[] getAppArguments(Attributes attrs) {
574 List args = new LinkedList();
575
576 try {
577 int idx = 1;
578 String argNamePrefix = MF_JAVAFX_ARGUMENT_PREFIX;
579 while (attrs.getValue(argNamePrefix + idx) != null) {
580 args.add(decodeBase64(attrs.getValue(argNamePrefix + idx)));
581 idx++;
582 }
583
584 String paramNamePrefix = MF_JAVAFX_PARAMETER_NAME_PREFIX;
585 String paramValuePrefix = MF_JAVAFX_PARAMETER_VALUE_PREFIX;
586 idx = 1;
587 while (attrs.getValue(paramNamePrefix + idx) != null) {
588 String k = decodeBase64(attrs.getValue(paramNamePrefix + idx));
589 String v = null;
590 if (attrs.getValue(paramValuePrefix + idx) != null) {
591 v = decodeBase64(attrs.getValue(paramValuePrefix + idx));
592 }
593 args.add("--" + k + "=" + (v != null ? v : ""));
594 idx++;
595 }
596 } catch (IOException ioe) {
597 if (verbose) {
598 System.err.println("Failed to extract application parameters");
599 }
600 ioe.printStackTrace();
601 }
602
603 return (String[]) args.toArray(new String[0]);
604 }
605
606 // FIXME: needs localization, since these are presented to the user
607 private static void abort(final Throwable cause, final String fmt, final Object... args) {
608 String msg = String.format(fmt, args);
609 if (msg != null) {
610 System.err.println(msg);
611 }
612
613 if (trace) {
614 if (cause != null) {
615 cause.printStackTrace();
616 } else {
617 Thread.dumpStack();
618 }
619 }
620 System.exit(1);
621 }
622
623 private static Attributes getJarAttributes(String jarPath) {
624 JarFile jarFile = null;
625 try {
626 jarFile = new JarFile(jarPath);
627 Manifest manifest = jarFile.getManifest();
628 if (manifest == null) {
629 abort(null, "No manifest in jar file %1$s", jarPath);
630 }
631 return manifest.getMainAttributes();
632 } catch (IOException ioe) {
633 abort(ioe, "Error launching jar file %1%s", jarPath);
634 } finally {
635 try {
636 jarFile.close();
637 } catch (IOException ioe) {}
638 }
639 return null;
640 }
641
642 private static void startToolkit() throws InterruptedException {
643 if (toolkitStarted.getAndSet(true)) {
644 return;
645 }
646
647 if (SystemProperties.isDebug()) {
648 MXExtension.initializeIfAvailable();
649 }
650
651 final CountDownLatch startupLatch = new CountDownLatch(1);
652
653 // Note, this method is called on the FX Application Thread
654 PlatformImpl.startup(() -> startupLatch.countDown());
655
656 // Wait for FX platform to start
657 startupLatch.await();
658 }
659
660 private static volatile boolean error = false;
661 private static volatile Throwable pConstructorError = null;
662 private static volatile Throwable pInitError = null;
663 private static volatile Throwable pStartError = null;
664 private static volatile Throwable pStopError = null;
665 private static volatile Throwable constructorError = null;
666 private static volatile Throwable initError = null;
667 private static volatile Throwable startError = null;
668 private static volatile Throwable stopError = null;
669
670 private static void launchApplication1(final Class<? extends Application> appClass,
671 final Class<? extends Preloader> preloaderClass,
672 final String[] args) throws Exception {
673
674 startToolkit();
675
676 if (savedMainCcl != null) {
677 /*
678 * The toolkit was already started by the java launcher, and the
679 * main method of the application class was called. Check to see
680 * whether the CCL has been changed. If so, then we need
681 * to pass the context class loader to the FX app thread so that it
682 * correctly picks up the current setting.
683 */
684 final ClassLoader ccl = Thread.currentThread().getContextClassLoader();
685 if (ccl != null && ccl != savedMainCcl) {
686 PlatformImpl.runLater(() -> {
687 Thread.currentThread().setContextClassLoader(ccl);
688 });
689 }
690 }
691
692 final AtomicBoolean pStartCalled = new AtomicBoolean(false);
693 final AtomicBoolean startCalled = new AtomicBoolean(false);
694 final AtomicBoolean exitCalled = new AtomicBoolean(false);
695 final AtomicBoolean pExitCalled = new AtomicBoolean(false);
696 final CountDownLatch shutdownLatch = new CountDownLatch(1);
697 final CountDownLatch pShutdownLatch = new CountDownLatch(1);
698
699 final PlatformImpl.FinishListener listener = new PlatformImpl.FinishListener() {
700 @Override public void idle(boolean implicitExit) {
701 if (!implicitExit) {
702 return;
703 }
704
705 // System.err.println("JavaFX Launcher: system is idle");
706 if (startCalled.get()) {
707 shutdownLatch.countDown();
708 } else if (pStartCalled.get()) {
709 pShutdownLatch.countDown();
710 }
711 }
712
713 @Override public void exitCalled() {
714 // System.err.println("JavaFX Launcher: received exit notification");
715 exitCalled.set(true);
716 shutdownLatch.countDown();
717 }
718 };
719 PlatformImpl.addListener(listener);
720
721 try {
722 final AtomicReference<Preloader> pldr = new AtomicReference<>();
723 if (preloaderClass != null) {
724 // Construct an instance of the preloader on the FX thread, then
725 // call its init method on this (launcher) thread. Then call
726 // the start method on the FX thread.
727 PlatformImpl.runAndWait(() -> {
728 try {
729 Constructor<? extends Preloader> c = preloaderClass.getConstructor();
730 pldr.set(c.newInstance());
731 // Set startup parameters
732 ParametersImpl.registerParameters(pldr.get(), new ParametersImpl(args));
733 } catch (Throwable t) {
734 System.err.println("Exception in Preloader constructor");
735 pConstructorError = t;
736 error = true;
737 }
738 });
739 }
740 currentPreloader = pldr.get();
741
742 // Call init method unless exit called or error detected
743 if (currentPreloader != null && !error && !exitCalled.get()) {
744 try {
745 // Call the application init method (on the Launcher thread)
746 currentPreloader.init();
747 } catch (Throwable t) {
748 System.err.println("Exception in Preloader init method");
749 pInitError = t;
750 error = true;
751 }
752 }
753
754 // Call start method unless exit called or error detected
755 if (currentPreloader != null && !error && !exitCalled.get()) {
756 // Call the application start method on FX thread
757 PlatformImpl.runAndWait(() -> {
758 try {
759 pStartCalled.set(true);
760
761 // Create primary stage and call preloader start method
762 final Stage primaryStage = new Stage();
763 primaryStage.impl_setPrimary(true);
764 currentPreloader.start(primaryStage);
765 } catch (Throwable t) {
766 System.err.println("Exception in Preloader start method");
767 pStartError = t;
768 error = true;
769 }
770 });
771
772 // Notify preloader of progress
773 if (!error && !exitCalled.get()) {
774 notifyProgress(currentPreloader, 0.0);
775 }
776 }
777
778 // Construct an instance of the application on the FX thread, then
779 // call its init method on this (launcher) thread. Then call
780 // the start method on the FX thread.
781 final AtomicReference<Application> app = new AtomicReference<>();
782 if (!error && !exitCalled.get()) {
783 if (currentPreloader != null) {
784 if (simulateSlowProgress) {
785 for (int i = 0; i < 100; i++) {
786 notifyProgress(currentPreloader, (double)i / 100.0);
787 Thread.sleep(10);
788 }
789 }
790 notifyProgress(currentPreloader, 1.0);
791 notifyStateChange(currentPreloader,
792 StateChangeNotification.Type.BEFORE_LOAD, null);
793 }
794
795 PlatformImpl.runAndWait(() -> {
796 try {
797 Constructor<? extends Application> c = appClass.getConstructor();
798 app.set(c.newInstance());
799 // Set startup parameters
800 ParametersImpl.registerParameters(app.get(), new ParametersImpl(args));
801 PlatformImpl.setApplicationName(appClass);
802 } catch (Throwable t) {
803 System.err.println("Exception in Application constructor");
804 constructorError = t;
805 error = true;
806 }
807 });
808 }
809 final Application theApp = app.get();
810
811 // Call init method unless exit called or error detected
812 if (!error && !exitCalled.get()) {
813 if (currentPreloader != null) {
814 notifyStateChange(currentPreloader,
815 StateChangeNotification.Type.BEFORE_INIT, theApp);
816 }
817
818 try {
819 // Call the application init method (on the Launcher thread)
820 theApp.init();
821 } catch (Throwable t) {
822 System.err.println("Exception in Application init method");
823 initError = t;
824 error = true;
825 }
826 }
827
828 // Call start method unless exit called or error detected
829 if (!error && !exitCalled.get()) {
830 if (currentPreloader != null) {
831 notifyStateChange(currentPreloader,
832 StateChangeNotification.Type.BEFORE_START, theApp);
833 }
834 // Call the application start method on FX thread
835 PlatformImpl.runAndWait(() -> {
836 try {
837 startCalled.set(true);
838
839 // Create primary stage and call application start method
840 final Stage primaryStage = new Stage();
841 primaryStage.impl_setPrimary(true);
842 theApp.start(primaryStage);
843 } catch (Throwable t) {
844 System.err.println("Exception in Application start method");
845 startError = t;
846 error = true;
847 }
848 });
849 }
850
851 if (!error) {
852 shutdownLatch.await();
853 // System.err.println("JavaFX Launcher: time to call stop");
854 }
855
856 // Call stop method if start was called
857 if (startCalled.get()) {
858 // Call Application stop method on FX thread
859 PlatformImpl.runAndWait(() -> {
860 try {
861 theApp.stop();
862 } catch (Throwable t) {
863 System.err.println("Exception in Application stop method");
864 stopError = t;
865 error = true;
866 }
867 });
868 }
869
870 if (error) {
871 if (pConstructorError != null) {
872 throw new RuntimeException("Unable to construct Preloader instance: "
873 + appClass, pConstructorError);
874 } else if (pInitError != null) {
875 throw new RuntimeException("Exception in Preloader init method",
876 pInitError);
877 } else if(pStartError != null) {
878 throw new RuntimeException("Exception in Preloader start method",
879 pStartError);
880 } else if (pStopError != null) {
881 throw new RuntimeException("Exception in Preloader stop method",
882 pStopError);
883 } else if (constructorError != null) {
884 String msg = "Unable to construct Application instance: " + appClass;
885 if (!notifyError(msg, constructorError)) {
886 throw new RuntimeException(msg, constructorError);
887 }
888 } else if (initError != null) {
889 String msg = "Exception in Application init method";
890 if (!notifyError(msg, initError)) {
891 throw new RuntimeException(msg, initError);
892 }
893 } else if(startError != null) {
894 String msg = "Exception in Application start method";
895 if (!notifyError(msg, startError)) {
896 throw new RuntimeException(msg, startError);
897 }
898 } else if (stopError != null) {
899 String msg = "Exception in Application stop method";
900 if (!notifyError(msg, stopError)) {
901 throw new RuntimeException(msg, stopError);
902 }
903 }
904 }
905 } finally {
906 PlatformImpl.removeListener(listener);
907 // Workaround until RT-13281 is implemented
908 // Don't call exit if we detect an error in javaws mode
909 // PlatformImpl.tkExit();
910 final boolean isJavaws = System.getSecurityManager() != null;
911 if (error && isJavaws) {
912 System.err.println("Workaround until RT-13281 is implemented: keep toolkit alive");
913 } else {
914 PlatformImpl.tkExit();
915 }
916 }
917 }
918
919 private static void notifyStateChange(final Preloader preloader,
920 final StateChangeNotification.Type type,
921 final Application app) {
922
923 PlatformImpl.runAndWait(() -> preloader.handleStateChangeNotification(
924 new StateChangeNotification(type, app)));
925 }
926
927 private static void notifyProgress(final Preloader preloader, final double d) {
928 PlatformImpl.runAndWait(() -> preloader.handleProgressNotification(
929 new Preloader.ProgressNotification(d)));
930 }
931
932 private static boolean notifyError(final String msg, final Throwable constructorError) {
933 final AtomicBoolean result = new AtomicBoolean(false);
934 PlatformImpl.runAndWait(() -> {
935 if (currentPreloader != null) {
936 try {
937 ErrorNotification evt = new ErrorNotification(null, msg, constructorError);
938 boolean rval = currentPreloader.handleErrorNotification(evt);
939 result.set(rval);
940 } catch (Throwable t) {
941 t.printStackTrace();
942 }
943 }
944 });
945
946 return result.get();
947 }
948
949 private static void notifyCurrentPreloader(final PreloaderNotification pe) {
950 PlatformImpl.runAndWait(() -> {
951 if (currentPreloader != null) {
952 currentPreloader.handleApplicationNotification(pe);
953 }
954 });
955 }
956
957 private static Method notifyMethod = null;
958
959 public static void notifyPreloader(Application app, final PreloaderNotification info) {
960 if (launchCalled.get()) {
961 // Standalone launcher mode
962 notifyCurrentPreloader(info);
963 return;
964 }
965
966 synchronized (LauncherImpl.class) {
967 if (notifyMethod == null) {
968 final String fxPreloaderClassName =
969 "com.sun.deploy.uitoolkit.impl.fx.FXPreloader";
970 try {
971 Class fxPreloaderClass = Class.forName(fxPreloaderClassName);
972 notifyMethod = fxPreloaderClass.getMethod(
973 "notifyCurrentPreloader", PreloaderNotification.class);
974 } catch (Exception ex) {
975 ex.printStackTrace();
976 return;
977 }
978 }
979 }
980
981 try {
982 // Call using reflection: FXPreloader.notifyCurrentPreloader(pe)
983 notifyMethod.invoke(null, info);
984 } catch (Exception ex) {
985 ex.printStackTrace();
986 }
987 }
988
989 // Not an instantiable class.
990 private LauncherImpl() {
991 // Should never get here.
992 throw new InternalError();
993 }
994
995 }