001/* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache license, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the license for the specific language governing permissions and 015 * limitations under the license. 016 */ 017package org.apache.logging.log4j.core.async; 018 019import java.util.concurrent.BlockingQueue; 020 021import com.conversantmedia.util.concurrent.DisruptorBlockingQueue; 022import com.conversantmedia.util.concurrent.SpinPolicy; 023import org.apache.logging.log4j.core.config.Node; 024import org.apache.logging.log4j.core.config.plugins.Plugin; 025import org.apache.logging.log4j.core.config.plugins.PluginAttribute; 026import org.apache.logging.log4j.core.config.plugins.PluginFactory; 027 028/** 029 * Factory for creating instances of {@link DisruptorBlockingQueue}. 030 * 031 * @since 2.7 032 */ 033@Plugin(name = "DisruptorBlockingQueue", category = Node.CATEGORY, elementType = BlockingQueueFactory.ELEMENT_TYPE) 034public class DisruptorBlockingQueueFactory<E> implements BlockingQueueFactory<E> { 035 036 private final SpinPolicy spinPolicy; 037 038 private DisruptorBlockingQueueFactory(final SpinPolicy spinPolicy) { 039 this.spinPolicy = spinPolicy; 040 } 041 042 @Override 043 public BlockingQueue<E> create(final int capacity) { 044 return new DisruptorBlockingQueue<>(capacity, spinPolicy); 045 } 046 047 @PluginFactory 048 public static <E> DisruptorBlockingQueueFactory<E> createFactory( 049 @PluginAttribute(value = "SpinPolicy", defaultString = "WAITING") final SpinPolicy spinPolicy 050 ) { 051 return new DisruptorBlockingQueueFactory<>(spinPolicy); 052 } 053}