I’m developing an IntelliJ-idea plugin and want to run code in background task (visible in the background tasks dialog and in another thread than the UI).
I found the following Helper class and tried it by passing a Runnable object and implement its run method but it still blocking the UI and when I tried to do the threading myself i got the following error
Read access is allowed from event dispatch thread or inside read-action only (see com.intellij.openapi.application.Application.runReadAction())
Details: Current thread: Thread[Thread-69 [WriteAccessToken],6,Idea Thread Group] 532224832
Our dispatch thread:Thread[AWT-EventQueue-1 12.1.4#IU-129.713, eap:false,6,Idea Thread Group] 324031064
SystemEventQueueThread: Thread[AWT-EventQueue-1 12.1.4#IU-129.713, eap:false,6,Idea Thread Group] 324031064
Answer
I have found a better way to run the process as background task where you can update the progress bar percentage and text
ProgressManager.getInstance().run(new Task.Backgroundable(project, "Title"){
public void run(@NotNull ProgressIndicator progressIndicator) {
// start your process
// Set the progress bar percentage and text
progressIndicator.setFraction(0.10);
progressIndicator.setText("90% to finish");
// 50% done
progressIndicator.setFraction(0.50);
progressIndicator.setText("50% to finish");
// Finished
progressIndicator.setFraction(1.0);
progressIndicator.setText("finished");
}});
If you need to read some data from another thread you should use
AccessToken token = null;
try {
token = ApplicationManager.getApplication().acquireReadActionLock();
//do what you need
} finally {
token.finish();
}