| /** |
| * 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.camel.builder; |
| |
| import java.util.concurrent.ExecutorService; |
| import java.util.concurrent.RejectedExecutionHandler; |
| import java.util.concurrent.TimeUnit; |
| |
| import org.apache.camel.CamelContext; |
| import org.apache.camel.ThreadPoolRejectedPolicy; |
| import org.apache.camel.model.ThreadPoolProfileDefinition; |
| import org.apache.camel.util.CamelContextHelper; |
| |
| /** |
| * A builder to create thread pools. |
| * |
| * @version |
| */ |
| public final class ThreadPoolBuilder { |
| |
| private final CamelContext camelContext; |
| private ThreadPoolProfileDefinition threadPoolDefinition; |
| |
| public ThreadPoolBuilder(CamelContext camelContext) { |
| this.camelContext = camelContext; |
| // use the default thread profile as the base |
| this.threadPoolDefinition = new ThreadPoolProfileDefinition(camelContext.getExecutorServiceStrategy().getDefaultThreadPoolProfile()); |
| } |
| |
| public ThreadPoolBuilder poolSize(int poolSize) { |
| threadPoolDefinition.poolSize(poolSize); |
| return this; |
| } |
| |
| public ThreadPoolBuilder maxPoolSize(int maxPoolSize) { |
| threadPoolDefinition.maxPoolSize(maxPoolSize); |
| return this; |
| } |
| |
| public ThreadPoolBuilder keepAliveTime(long keepAliveTime) { |
| threadPoolDefinition.keepAliveTime(keepAliveTime); |
| return this; |
| } |
| |
| public ThreadPoolBuilder timeUnit(TimeUnit timeUnit) { |
| threadPoolDefinition.timeUnit(timeUnit); |
| return this; |
| } |
| |
| public ThreadPoolBuilder maxQueueSize(int maxQueueSize) { |
| threadPoolDefinition.maxQueueSize(maxQueueSize); |
| return this; |
| } |
| |
| public ThreadPoolBuilder rejectedPolicy(ThreadPoolRejectedPolicy rejectedPolicy) { |
| threadPoolDefinition.rejectedPolicy(rejectedPolicy); |
| return this; |
| } |
| |
| /** |
| * Builds the new thread pool |
| * |
| * @param name name which is appended to the thread name |
| * @return the created thread pool |
| * @throws Exception is thrown if error building the thread pool |
| */ |
| public ExecutorService build(String name) throws Exception { |
| return build(null, name); |
| } |
| |
| /** |
| * Builds the new thread pool |
| * |
| * @param source the source object, usually it should be <tt>this</tt> passed in as parameter |
| * @param name name which is appended to the thread name |
| * @return the created thread pool |
| * @throws Exception is thrown if error building the thread pool |
| */ |
| public ExecutorService build(Object source, String name) throws Exception { |
| int size = CamelContextHelper.parseInteger(camelContext, threadPoolDefinition.getPoolSize()); |
| int max = CamelContextHelper.parseInteger(camelContext, threadPoolDefinition.getMaxPoolSize()); |
| long keepAlive = CamelContextHelper.parseLong(camelContext, threadPoolDefinition.getKeepAliveTime()); |
| int queueSize = CamelContextHelper.parseInteger(camelContext, threadPoolDefinition.getMaxQueueSize()); |
| TimeUnit unit = threadPoolDefinition.getTimeUnit(); |
| RejectedExecutionHandler handler = threadPoolDefinition.getRejectedExecutionHandler(); |
| |
| ExecutorService answer = camelContext.getExecutorServiceStrategy().newThreadPool(source, name, |
| size, max, keepAlive, unit, queueSize, handler, true); |
| return answer; |
| } |
| |
| } |