/*
* Copyright 2000-2015 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.util.indexing;
import com.intellij.openapi.application.ApplicationManager;
import com.intellij.openapi.diagnostic.Logger;
import org.jetbrains.annotations.NotNull;
import java.text.MessageFormat;
/**
* Created by Maxim.Mossienko on 11/23/2015.
*/
public class IndexAccessValidator {
private final ThreadLocal<ID<?, ?>> ourAlreadyProcessingIndices = new ThreadLocal<>();
public void checkAccessingIndexDuringOtherIndexProcessing(@NotNull ID<?, ?> indexKey) {
final ID<?, ?> alreadyProcessingIndex = ourAlreadyProcessingIndices.get();
if (alreadyProcessingIndex != null && alreadyProcessingIndex != indexKey) {
final String message = MessageFormat.format("Accessing ''{0}'' during processing ''{1}''. Nested different indices processing may cause deadlock",
indexKey.toString(),
alreadyProcessingIndex.toString());
if (ApplicationManager.getApplication().isUnitTestMode()) throw new RuntimeException(message);
Logger.getInstance(FileBasedIndexImpl.class).error(message); // RuntimeException to skip rebuild
}
}
public void startedProcessingActivityForIndex(ID<?,?> indexId) { ourAlreadyProcessingIndices.set(indexId); }
public void stoppedProcessingActivityForIndex(ID<?,?> indexId) { ourAlreadyProcessingIndices.set(null); }
}