topology-manager/src/main/java/org/apache/aries/rsa/topologymanager/NamedThreadFactory.java

/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF 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.aries.rsa.topologymanager;

import java.util.concurrent.ThreadFactory;
import java.util.concurrent.atomic.AtomicInteger;

public class NamedThreadFactory implements ThreadFactory {
    /**
     * Counter used when constructing unique Thread names
     */
    private final AtomicInteger count = new AtomicInteger(0);
    /**
     * Pattern used when constructing Thread names. This pattern must include the sequence
     * %d which will be used to replace with a Thread count.
     */
    private final String namePattern;

    /**
     * @param context Class name will be used to name threads created by this ThreadFactory.
     */
    public NamedThreadFactory(Class<?> context) {
        this.namePattern = context.getSimpleName() + "-%d";
    }

    @Override
    public Thread newThread(Runnable r) {
        return new Thread(r, String.format(namePattern, count.getAndIncrement()));
    }
}