TrackingMergeScheduler.java

/*
 * Licensed to ElasticSearch and Shay Banon under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. ElasticSearch licenses this
 * file to you 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 org.apache.lucene.index;

import org.elasticsearch.common.util.concurrent.ConcurrentCollections;

import java.util.concurrent.ConcurrentMap;

/**
 */
public class TrackingMergeScheduler {

    private static final ConcurrentMap<Thread, MergePolicy.OneMerge> merges = ConcurrentCollections.newConcurrentMap();

    public static void setCurrentMerge(MergePolicy.OneMerge merge) {
        merges.put(Thread.currentThread(), merge);
    }

    public static void removeCurrentMerge() {
        merges.remove(Thread.currentThread());
    }

    public static MergePolicy.OneMerge getCurrentMerge() {
        return merges.get(Thread.currentThread());
    }
}