/*
* JBoss, Home of Professional Open Source
* Copyright 2009 Red Hat Inc. and/or its affiliates and other
* contributors as indicated by the @author tags. All rights reserved.
* See the copyright.txt in the distribution for a full listing of
* individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.infinispan.lucene.profiling;
import java.util.HashSet;
import java.util.concurrent.BlockingDeque;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.LinkedBlockingDeque;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.atomic.AtomicLong;
/**
* SharedState is used by LuceneUserThread when used concurrently to coordinate
* the assertions: different threads need a shared state to know what to assert
* about the Index contents.
*
* @author Sanne Grinovero
* @since 4.0
*/
public class SharedState {
final BlockingDeque<String> stringsInIndex = new LinkedBlockingDeque<String>();
final BlockingDeque<String> stringsOutOfIndex = new LinkedBlockingDeque<String>();
private final AtomicLong indexWriterActionCount = new AtomicLong();
private final AtomicLong searchingActionCount = new AtomicLong();
private final AtomicInteger errors = new AtomicInteger(0);
private volatile boolean quit = false;
private final CountDownLatch startSignal = new CountDownLatch(1);
public SharedState(int initialDictionarySize) {
HashSet<String> strings = new HashSet<String>();
for (int i=1; i<=initialDictionarySize; i++){
strings.add( String.valueOf(i));
}
stringsOutOfIndex.addAll(strings);
}
public boolean needToQuit() {
return quit || (errors.get()!=0);
}
public void errorManage(Exception e){
errors.incrementAndGet();
e.printStackTrace();
}
public long incrementIndexWriterTaskCount(long delta) {
return indexWriterActionCount.addAndGet(delta);
}
public long incrementIndexSearchesCount(long delta) {
return searchingActionCount.addAndGet(delta);
}
public String getStringToAddToIndex() throws InterruptedException {
return stringsOutOfIndex.take();
}
public void quit() {
quit = true;
}
public void addStringWrittenToIndex(String termToAdd) {
stringsInIndex.add(termToAdd);
}
public void waitForStart() throws InterruptedException {
startSignal.await();
}
public void startWaitingThreads() {
startSignal.countDown();
}
}