| /* |
| * 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.ignite.internal.thread; |
| |
| import java.util.concurrent.atomic.AtomicLong; |
| import org.apache.ignite.internal.tostring.S; |
| import org.apache.ignite.internal.util.worker.IgniteWorker; |
| |
| /** |
| * This class adds some necessary plumbing on top of the {@link Thread} class. Specifically, it adds: |
| * <ul> |
| * <li>Consistent naming of threads</li>; |
| * <li>Name of the ignite node this thread belongs to</li>. |
| * </ul> |
| * <b>Note</b>: this class is intended for internal use only. |
| */ |
| public class IgniteThread extends Thread { |
| /** Number of all ignite threads in the system. */ |
| private static final AtomicLong THREAD_COUNTER = new AtomicLong(); |
| |
| /** The name of the Ignite instance this thread belongs to. */ |
| protected final String igniteInstanceName; |
| |
| /** |
| * Creates thread with given worker. |
| * |
| * @param worker Worker to create thread with. |
| */ |
| public IgniteThread(IgniteWorker worker) { |
| this(worker.igniteInstanceName(), worker.name(), worker); |
| } |
| |
| /** |
| * Creates ignite thread with given name for a given Ignite instance. |
| * |
| * @param nodeName Name of the Ignite instance this thread is created for. |
| * @param threadName Name of thread. |
| */ |
| public IgniteThread(String nodeName, String threadName) { |
| this(nodeName, threadName, null); |
| } |
| |
| /** |
| * Creates ignite thread with given name for a given Ignite instance. |
| * |
| * @param nodeName Name of the Ignite instance this thread is created for. |
| * @param threadName Name of thread. |
| * @param r Runnable to execute. |
| */ |
| public IgniteThread(String nodeName, String threadName, Runnable r) { |
| super(r, createName(THREAD_COUNTER.incrementAndGet(), threadName, nodeName)); |
| |
| this.igniteInstanceName = nodeName; |
| } |
| |
| /** |
| * Gets name of the Ignite instance this thread belongs to. |
| * |
| * @return Name of the Ignite instance this thread belongs to. |
| */ |
| public String getIgniteInstanceName() { |
| return igniteInstanceName; |
| } |
| |
| /** |
| * Returns IgniteThread or {@code null} if current thread is not an instance of IgniteThread. |
| * |
| * @return IgniteThread or {@code null} if current thread is not an instance of IgniteThread. |
| */ |
| public static IgniteThread current() { |
| Thread thread = Thread.currentThread(); |
| |
| return thread.getClass() == IgniteThread.class || thread instanceof IgniteThread |
| ? ((IgniteThread) thread) : null; |
| } |
| |
| /** |
| * Create prefix for thread name. |
| */ |
| public static String threadPrefix(String nodeName, String threadName) { |
| return "%" + nodeName + "%" + threadName + "-"; |
| } |
| |
| /** |
| * Creates new thread name. |
| * |
| * @param num Thread number. |
| * @param threadName Thread name. |
| * @param nodeName Ignite instance name. |
| * @return New thread name. |
| */ |
| protected static String createName(long num, String threadName, String nodeName) { |
| return threadPrefix(nodeName, threadName) + num; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| public String toString() { |
| return S.toString(IgniteThread.class, this, "name", getName()); |
| } |
| } |