static {
try {
final Class<MyData> flavorClass = MyData.class;
final Thread currentThread = Thread.currentThread();
final ClassLoader currentLoader = currentThread.getContextClassLoader();
try {
currentThread.setContextClassLoader(flavorClass.getClassLoader());
ourDataFlavor =
new DataFlavor(
DataFlavor.javaJVMLocalObjectMimeType + ";class=" + flavorClass.getName());
} finally {
currentThread.setContextClassLoader(currentLoader);
}
} catch (ClassNotFoundException e) {
throw new RuntimeException(e);
}
}
public void startRunInjectors(@NotNull final Document hostDocument, final boolean synchronously) {
if (myProject.isDisposed()) return;
if (!synchronously && ApplicationManager.getApplication().isWriteAccessAllowed()) return;
// use cached to avoid recreate PSI in alien project
final PsiDocumentManager documentManager = PsiDocumentManager.getInstance(myProject);
final PsiFile hostPsiFile = documentManager.getCachedPsiFile(hostDocument);
if (hostPsiFile == null) return;
final CopyOnWriteArrayList<DocumentWindow> injected =
(CopyOnWriteArrayList<DocumentWindow>)
InjectedLanguageUtil.getCachedInjectedDocuments(hostPsiFile);
if (injected.isEmpty()) return;
if (myProgress.isCanceled()) {
myProgress = new DaemonProgressIndicator();
}
final Processor<DocumentWindow> commitProcessor =
new Processor<DocumentWindow>() {
@Override
public boolean process(DocumentWindow documentWindow) {
if (myProject.isDisposed()) return false;
ProgressIndicator indicator = ProgressManager.getInstance().getProgressIndicator();
if (indicator != null && indicator.isCanceled()) return false;
if (documentManager.isUncommited(hostDocument) || !hostPsiFile.isValid())
return false; // will be committed later
Segment[] ranges = documentWindow.getHostRanges();
Segment rangeMarker = ranges.length > 0 ? ranges[0] : null;
PsiElement element =
rangeMarker == null
? null
: hostPsiFile.findElementAt(rangeMarker.getStartOffset());
if (element == null) {
synchronized (PsiLock.LOCK) {
injected.remove(documentWindow);
}
return true;
}
final DocumentWindow[] stillInjectedDocument = {null};
// it is here where the reparse happens and old file contents replaced
InjectedLanguageUtil.enumerate(
element,
hostPsiFile,
true,
new PsiLanguageInjectionHost.InjectedPsiVisitor() {
@Override
public void visit(
@NotNull PsiFile injectedPsi,
@NotNull List<PsiLanguageInjectionHost.Shred> places) {
stillInjectedDocument[0] =
(DocumentWindow) injectedPsi.getViewProvider().getDocument();
PsiDocumentManagerImpl.checkConsistency(injectedPsi, stillInjectedDocument[0]);
}
});
synchronized (PsiLock.LOCK) {
if (stillInjectedDocument[0] == null) {
injected.remove(documentWindow);
} else if (stillInjectedDocument[0] != documentWindow) {
injected.remove(documentWindow);
injected.addIfAbsent(stillInjectedDocument[0]);
}
}
return true;
}
};
final Runnable commitInjectionsRunnable =
new Runnable() {
@Override
public void run() {
if (myProgress.isCanceled()) return;
JobLauncher.getInstance()
.invokeConcurrentlyUnderProgress(
new ArrayList<DocumentWindow>(injected),
myProgress,
!synchronously,
commitProcessor);
}
};
if (synchronously) {
if (Thread.holdsLock(PsiLock.LOCK)) {
// hack for the case when docCommit was called from within PSI modification, e.g. in
// formatter.
// we can't spawn threads to do injections there, otherwise a deadlock is imminent
ContainerUtil.process(new ArrayList<DocumentWindow>(injected), commitProcessor);
} else {
commitInjectionsRunnable.run();
}
} else {
JobLauncher.getInstance()
.submitToJobThread(
Job.DEFAULT_PRIORITY,
new Runnable() {
@Override
public void run() {
ApplicationManagerEx.getApplicationEx()
.tryRunReadAction(commitInjectionsRunnable);
}
});
}
}
@Override
public void commitAndRunReadAction(@NotNull final Runnable runnable) {
final Application application = ApplicationManager.getApplication();
if (SwingUtilities.isEventDispatchThread()) {
commitAllDocuments();
runnable.run();
} else {
if (ApplicationManager.getApplication().isReadAccessAllowed()) {
LOG.error(
"Don't call commitAndRunReadAction inside ReadAction, it will cause a deadlock otherwise. "
+ Thread.currentThread());
}
final Semaphore s1 = new Semaphore();
final Semaphore s2 = new Semaphore();
final boolean[] committed = {false};
application.runReadAction(
new Runnable() {
@Override
public void run() {
if (myUncommittedDocuments.isEmpty()) {
runnable.run();
committed[0] = true;
} else {
s1.down();
s2.down();
final Runnable commitRunnable =
new Runnable() {
@Override
public void run() {
commitAllDocuments();
s1.up();
s2.waitFor();
}
};
final ProgressIndicator progressIndicator =
ProgressManager.getInstance().getProgressIndicator();
if (progressIndicator == null) {
ApplicationManager.getApplication().invokeLater(commitRunnable);
} else {
ApplicationManager.getApplication()
.invokeLater(commitRunnable, progressIndicator.getModalityState());
}
}
}
});
if (!committed[0]) {
s1.waitFor();
application.runReadAction(
new Runnable() {
@Override
public void run() {
s2.up();
runnable.run();
}
});
}
}
}
@Override
public void startRunInjectors(@NotNull final Document hostDocument, final boolean synchronously) {
if (myProject.isDisposed()) return;
if (!synchronously && ApplicationManager.getApplication().isWriteAccessAllowed()) return;
// use cached to avoid recreate PSI in alien project
final PsiDocumentManager documentManager = PsiDocumentManager.getInstance(myProject);
final PsiFile hostPsiFile = documentManager.getCachedPsiFile(hostDocument);
if (hostPsiFile == null) return;
final ConcurrentList<DocumentWindow> injected =
InjectedLanguageUtil.getCachedInjectedDocuments(hostPsiFile);
if (injected.isEmpty()) return;
if (myProgress.isCanceled()) {
myProgress = new DaemonProgressIndicator();
}
final Set<DocumentWindow> newDocuments = Collections.synchronizedSet(new THashSet<>());
final Processor<DocumentWindow> commitProcessor =
documentWindow -> {
if (myProject.isDisposed()) return false;
ProgressIndicator indicator = ProgressManager.getInstance().getProgressIndicator();
if (indicator != null && indicator.isCanceled()) return false;
if (documentManager.isUncommited(hostDocument) || !hostPsiFile.isValid())
return false; // will be committed later
// it is here where the reparse happens and old file contents replaced
InjectedLanguageUtil.enumerate(
documentWindow,
hostPsiFile,
(injectedPsi, places) -> {
DocumentWindow newDocument =
(DocumentWindow) injectedPsi.getViewProvider().getDocument();
if (newDocument != null) {
PsiDocumentManagerBase.checkConsistency(injectedPsi, newDocument);
newDocuments.add(newDocument);
}
});
return true;
};
final Runnable commitInjectionsRunnable =
() -> {
if (myProgress.isCanceled()) return;
JobLauncher.getInstance()
.invokeConcurrentlyUnderProgress(
new ArrayList<>(injected), myProgress, true, commitProcessor);
synchronized (ourInjectionPsiLock) {
injected.clear();
injected.addAll(newDocuments);
}
};
if (synchronously) {
if (Thread.holdsLock(PsiLock.LOCK)) {
// hack for the case when docCommit was called from within PSI modification, e.g. in
// formatter.
// we can't spawn threads to do injections there, otherwise a deadlock is imminent
ContainerUtil.process(new ArrayList<>(injected), commitProcessor);
} else {
commitInjectionsRunnable.run();
}
} else {
JobLauncher.getInstance()
.submitToJobThread(
() ->
ApplicationManagerEx.getApplicationEx()
.tryRunReadAction(commitInjectionsRunnable),
null);
}
}
