| /* |
| * 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.openejb.util.executor; |
| |
| import org.apache.openejb.util.Duration; |
| |
| import java.util.concurrent.RejectedExecutionException; |
| import java.util.concurrent.RejectedExecutionHandler; |
| import java.util.concurrent.ThreadPoolExecutor; |
| import java.util.concurrent.TimeUnit; |
| |
| /** |
| * @version $Rev$ $Date$ |
| */ |
| public class OfferRejectedExecutionHandler implements RejectedExecutionHandler { |
| |
| private long timeout = 30; |
| private TimeUnit seconds = TimeUnit.SECONDS; |
| |
| public OfferRejectedExecutionHandler(Duration duration) { |
| this(duration.getTime(), duration.getUnit() == null ? TimeUnit.SECONDS : duration.getUnit()); |
| } |
| |
| public OfferRejectedExecutionHandler(long timeout, TimeUnit timeUnit) { |
| if (timeout <= 0) throw new IllegalArgumentException("timeout must be greater than zero"); |
| if (timeUnit == null) throw new IllegalArgumentException("TimeUnit must not be null"); |
| |
| this.timeout = timeout; |
| this.seconds = timeUnit; |
| } |
| |
| @Override |
| public void rejectedExecution(final Runnable r, final ThreadPoolExecutor tpe) { |
| |
| if (null == r || null == tpe || tpe.isShutdown() || tpe.isTerminated() || tpe.isTerminating()) { |
| return; |
| } |
| |
| try { |
| if (!tpe.getQueue().offer(r, timeout, seconds)) { |
| throw new RejectedExecutionException("Timeout waiting for executor slot: waited " + timeout + " " + seconds.toString().toLowerCase()); |
| } |
| } catch (InterruptedException e) { |
| throw new RejectedExecutionException("Interrupted waiting for executor slot"); |
| } |
| } |
| } |