import com.intellij.openapi.startup.StartupActivity; //导入依赖的package包/类
public void runPostStartupActivitiesFromExtensions() {
  for (final StartupActivity extension : Extensions.getExtensions(StartupActivity.POST_STARTUP_ACTIVITY)) {
    final Runnable runnable = new Runnable() {
      @Override
      public void run() {
        if (!myProject.isDisposed()) {
          extension.runActivity(myProject);
        }
      }
    };
    if (extension instanceof DumbAware) {
      runActivity(runnable);
    }
    else {
      queueSmartModeActivity(runnable);
    }
  }
}
 

import com.intellij.openapi.startup.StartupActivity; //导入依赖的package包/类
public void runPostStartupActivitiesFromExtensions(@Nonnull UIAccess uiAccess) {
  StartupActivity[] extensions = Extensions.getExtensions(StartupActivity.POST_STARTUP_ACTIVITY);
  for (final StartupActivity extension : extensions) {
    final Runnable runnable = () -> {
      if (!myProject.isDisposed()) {
        long start = System.currentTimeMillis();
        extension.runActivity(uiAccess, myProject);
        long duration = System.currentTimeMillis() - start;
        if (duration > 200) {
          LOG.info(extension.getClass().getSimpleName() + " run in " + duration);
        }
      }
    };
    if (extension instanceof DumbAware) {
      runActivity(runnable);
    }
    else {
      queueSmartModeActivity(runnable);
    }
  }
}
 

import com.intellij.openapi.startup.StartupActivity; //导入依赖的package包/类
public static PythonSdkUpdater getInstance() {
  final StartupActivity[] extensions = Extensions.getExtensions(StartupActivity.POST_STARTUP_ACTIVITY);
  for (StartupActivity extension : extensions) {
    if (extension instanceof PythonSdkUpdater) {
      return (PythonSdkUpdater)extension;
    }
  }
  throw new UnsupportedOperationException("could not find self");
}
 

import com.intellij.openapi.startup.StartupActivity; //导入依赖的package包/类
public static StudyCoursesUpdater getInstance() {
  final StartupActivity[] extensions = Extensions.getExtensions(StartupActivity.POST_STARTUP_ACTIVITY);
  for (StartupActivity extension : extensions) {
    if (extension instanceof StudyCoursesUpdater) {
      return (StudyCoursesUpdater) extension;
    }
  }
  throw new UnsupportedOperationException("could not find self");
}
 

import com.intellij.openapi.startup.StartupActivity; //导入依赖的package包/类
private void addFiltersToStartupActivities() {
  ExtensionPoint<StartupActivity> ep =
      Extensions.getRootArea().getExtensionPoint(StartupActivity.POST_STARTUP_ACTIVITY);
  for (Class<? extends StartupActivity> startupActivity :
      CidrStartupActivitiesToSuppress.STARTUP_ACTIVITIES_TO_SUPPRESS) {
    StartupActivity startupActivityInstance =
        StartupActivity.POST_STARTUP_ACTIVITY.findExtension(startupActivity);
    Preconditions.checkNotNull(startupActivityInstance);
    StartupActivity replacementStartupActivity =
        new BlazeSuppressStartupActivity(startupActivityInstance);
    ep.registerExtension(
        replacementStartupActivity, LoadingOrder.before(startupActivity.getSimpleName()));
    ep.unregisterExtension(startupActivityInstance);
  }
}
 

import com.intellij.openapi.startup.StartupActivity; //导入依赖的package包/类
public void runPostStartupActivitiesFromExtensions() {
  final StartupActivity[] extensions = Extensions.getExtensions(StartupActivity.POST_STARTUP_ACTIVITY);
  if (extensions.length == 0) {
    return;
  }

  final List<Runnable> dumbAwareActivities = new ArrayList<Runnable>();
  final List<Runnable> normalActivities = new ArrayList<Runnable>();
  for (final StartupActivity extension : extensions) {
    final Runnable runnable = new Runnable() {
      public void run() {
        if (!myProject.isDisposed()) {
          extension.runActivity(myProject);
        }
      }
    };
    if (extension instanceof DumbAware) {
      dumbAwareActivities.add(runnable);
    }
    else {
      normalActivities.add(runnable);
    }
  }

  runActivities(dumbAwareActivities);

  if (!normalActivities.isEmpty()) {
    DumbService.getInstance(myProject).runWhenSmart(new Runnable() {
      public void run() {
        if (!myProject.isDisposed()) {
          runActivities(normalActivities);
        }
      }
    });
  }
}
 

import com.intellij.openapi.startup.StartupActivity; //导入依赖的package包/类
private BlazeSuppressStartupActivity(StartupActivity original) {
  this.original = original;
}