org.tinygroup.queue.impl.DefaultPriorityIncreaseStrategy Maven / Gradle / Ivy
/**
* Copyright (c) 1997-2013, www.tinygroup.org (luo_guo@icloud.com).
*
* Licensed under the GPL, Version 3.0 (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.gnu.org/licenses/gpl.html
*
* 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.tinygroup.queue.impl;
import org.tinygroup.queue.PriorityIncreaseStrategy;
import org.tinygroup.queue.PriorityQueue;
/**
* 默认的优先级提升策略
*/
public class DefaultPriorityIncreaseStrategy implements PriorityIncreaseStrategy {
public void increasePriority(PriorityQueue queue) {
PriorityQueueImpl priorityQueue = (PriorityQueueImpl) queue;
// 默认设定调用次数是队列大小的时候触发优先提升
if (priorityQueue.getCallTimes() == priorityQueue.getSize()) {
synchronized (priorityQueue.dateQueueListArray) {
for (int i = priorityQueue.getReverseLevel(); i < priorityQueue.dateQueueListArray.length - 1; i++) {
priorityQueue.dateQueueListArray[i].addAll(priorityQueue.dateQueueListArray[i + 1]);
priorityQueue.dateQueueListArray[i + 1].clear();
}
}
}
}
}