cn.itcast.httpclient.ClientEvictExpiredConnections.java Source code

Introduction

Here is the source code for cn.itcast.httpclient.ClientEvictExpiredConnections.java

Source

/*
 * ====================================================================
 * 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.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 *
 */
package cn.itcast.httpclient;

import org.apache.http.conn.HttpClientConnectionManager;
import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;

public class ClientEvictExpiredConnections {

    public static void main(String[] args) throws Exception {
        PoolingHttpClientConnectionManager cm = new PoolingHttpClientConnectionManager();
        // 
        cm.setMaxTotal(200);
        // ???
        cm.setDefaultMaxPerRoute(20);

        new IdleConnectionEvictor(cm).start();
    }

    public static class IdleConnectionEvictor extends Thread {

        private final HttpClientConnectionManager connMgr;

        private volatile boolean shutdown;

        public IdleConnectionEvictor(HttpClientConnectionManager connMgr) {
            this.connMgr = connMgr;
        }

        @Override
        public void run() {
            try {
                while (!shutdown) {
                    synchronized (this) {
                        wait(5000);
                        // 
                        connMgr.closeExpiredConnections();
                    }
                }
            } catch (InterruptedException ex) {
                // ?
            }
        }

        public void shutdown() {
            shutdown = true;
            synchronized (this) {
                notifyAll();
            }
        }
    }

}