/*
* Copyright 2000-2016 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.intellij.openapi.project;
import com.intellij.openapi.application.Application;
import com.intellij.openapi.application.ApplicationManager;
import com.intellij.openapi.diagnostic.Logger;
import com.intellij.openapi.vfs.VirtualFileManager;
import com.intellij.psi.impl.DebugUtil;
import com.intellij.psi.util.PsiModificationTracker;
import com.intellij.util.messages.MessageBus;
import java.util.HashSet;
import java.util.Set;
/**
* @author peter
*/
public class NoAccessDuringPsiEvents {
private static final Logger LOG = Logger.getInstance("#com.intellij.openapi.project.NoAccessDuringPsiEvents");
private static final Set<String> ourReportedTraces = new HashSet<>();
public static void checkCallContext() {
if (isInsideEventProcessing() && ourReportedTraces.add(DebugUtil.currentStackTrace())) {
LOG.error("It's prohibited to access index during event dispatching");
}
}
public static boolean isInsideEventProcessing() {
Application application = ApplicationManager.getApplication();
if (!application.isWriteAccessAllowed()) return false;
MessageBus bus = application.getMessageBus();
return bus.hasUndeliveredEvents(VirtualFileManager.VFS_CHANGES) || bus.hasUndeliveredEvents(PsiModificationTracker.TOPIC);
}
}