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Proper 'async' support for JdtLs fallback

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This commit is contained in:
Kris De Volder
2018-03-26 15:33:47 -07:00
parent 13633746cb
commit 3d9752cbdb
2 changed files with 25 additions and 17 deletions
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34
headless-services/spring-boot-language-server/src/main/java/org/springframework/ide/vscode/boot/jdt/ls/JdtLsProjectCache.java
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@@ -108,28 +108,30 @@ public class JdtLsProjectCache implements JavaProjectsService {
@Override
public void addListener(Listener listener) {
Assert.isLegal(initialized.isDone()); //Adding / removing listeners prior to inialization isn't supported. (If this is really needed, it can be
// bit its a bit trickier to implement that correctly)
if (initialized.isCompletedExceptionally()) {
fallback.addListener(listener);
} else {
synchronized (listeners) {
listeners.add(listener);
initialized.handle((success, failed) -> {
if (failed!=null) {
fallback.addListener(listener);
} else {
synchronized (listeners) {
listeners.add(listener);
}
}
}
return null;
});
}
@Override
public void removeListener(Listener listener) {
Assert.isLegal(initialized.isDone()); //Adding / removing listeners prior to inialization isn't supported. (If this is really needed, it can be
// bit its a bit trickier to implement that correctly)
if (initialized.isCompletedExceptionally()) {
fallback.removeListener(listener);
} else {
synchronized (listeners) {
listeners.remove(listener);
initialized.handle((success, failed) -> {
if (failed!=null) {
fallback.removeListener(listener);
} else {
synchronized (listeners) {
listeners.remove(listener);
}
}
}
return null;
});
}
private void notifyDelete(JdtLsProject deleted) {