001 /* 002 * Licensed to the Apache Software Foundation (ASF) under one 003 * or more contributor license agreements. See the NOTICE file 004 * distributed with this work for additional information 005 * regarding copyright ownership. The ASF licenses this file 006 * to you under the Apache License, Version 2.0 (the 007 * "License"); you may not use this file except in compliance 008 * with the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, 013 * software distributed under the License is distributed on an 014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 015 * KIND, either express or implied. See the License for the 016 * specific language governing permissions and limitations 017 * under the License. 018 */ 019 020 021 package org.apache.geronimo.jetty6.connector; 022 023 import java.util.concurrent.RejectedExecutionException; 024 import java.util.concurrent.TimeUnit; 025 026 import org.apache.commons.logging.Log; 027 import org.apache.commons.logging.LogFactory; 028 import org.apache.geronimo.system.threads.ThreadPool; 029 030 /** 031 * @version $Rev: 543715 $ $Date: 2007-06-02 04:10:16 -0400 (Sat, 02 Jun 2007) $ 032 */ 033 public class JettyThreadPool implements org.mortbay.thread.ThreadPool { 034 035 private static final Log log = LogFactory.getLog(JettyThreadPool.class); 036 private final ThreadPool executor; 037 private final String name; 038 039 040 public JettyThreadPool(ThreadPool executor, String name) { 041 this.executor = executor; 042 this.name = name; 043 } 044 045 public boolean dispatch(Runnable runnable) { 046 try { 047 executor.execute(name, runnable); 048 return true; 049 } catch (RejectedExecutionException e) { 050 log.warn(e); 051 return false; 052 } catch (InterruptedException e) { 053 log.warn(e); 054 return false; 055 } 056 } 057 058 public void join() throws InterruptedException { 059 //umm, this is doubtful 060 executor.awaitTermination(Long.MAX_VALUE, TimeUnit.MILLISECONDS); 061 } 062 063 public int getThreads() { 064 return executor.getPoolSize(); 065 } 066 067 public int getIdleThreads() { 068 return executor.getMaximumPoolSize() - executor.getPoolSize(); 069 } 070 071 public boolean isLowOnThreads() { 072 return executor.getPoolSize() >= executor.getMaximumPoolSize(); 073 } 074 }