内容简介:本文主要研究一下jest的IdleConnectionReaperjest-common-6.3.1-sources.jar!/io/searchbox/client/config/idle/IdleConnectionReaper.javajest-common-6.3.1-sources.jar!/io/searchbox/client/config/idle/ReapableConnectionManager.java
序
本文主要研究一下jest的IdleConnectionReaper
IdleConnectionReaper
jest-common-6.3.1-sources.jar!/io/searchbox/client/config/idle/IdleConnectionReaper.java
public class IdleConnectionReaper extends AbstractScheduledService { final static Logger logger = LoggerFactory.getLogger(IdleConnectionReaper.class); private final ReapableConnectionManager reapableConnectionManager; private final ClientConfig clientConfig; public IdleConnectionReaper(ClientConfig clientConfig, ReapableConnectionManager reapableConnectionManager) { this.reapableConnectionManager = reapableConnectionManager; this.clientConfig = clientConfig; } @Override protected void runOneIteration() throws Exception { logger.debug("closing idle connections..."); reapableConnectionManager.closeIdleConnections(clientConfig.getMaxConnectionIdleTime(), clientConfig.getMaxConnectionIdleTimeDurationTimeUnit()); } @Override protected Scheduler scheduler() { return Scheduler.newFixedDelaySchedule(0l, clientConfig.getMaxConnectionIdleTime(), clientConfig.getMaxConnectionIdleTimeDurationTimeUnit()); } @Override protected ScheduledExecutorService executor() { final ScheduledExecutorService executor = Executors.newSingleThreadScheduledExecutor( new ThreadFactoryBuilder() .setDaemon(true) .setNameFormat(serviceName()) .build()); // Add a listener to shutdown the executor after the service is stopped. This ensures that the // JVM shutdown will not be prevented from exiting after this service has stopped or failed. // Technically this listener is added after start() was called so it is a little gross, but it // is called within doStart() so we know that the service cannot terminate or fail concurrently // with adding this listener so it is impossible to miss an event that we are interested in. addListener(new Listener() { @Override public void terminated(State from) { executor.shutdown(); } @Override public void failed(State from, Throwable failure) { executor.shutdown(); }}, MoreExecutors.directExecutor()); return executor; } }
- IdleConnectionReaper继承了AbstractScheduledService,它的构造器接收clientConfig及reapableConnectionManager;其runOneIteration执行了reapableConnectionManager.closeIdleConnections;其scheduler方法创建的是fixedDelay Scheduler;其executor方法创建的是SingleThreadScheduledExecutor
ReapableConnectionManager
jest-common-6.3.1-sources.jar!/io/searchbox/client/config/idle/ReapableConnectionManager.java
public interface ReapableConnectionManager { void closeIdleConnections(long idleTimeout, TimeUnit unit); }
- ReapableConnectionManager接口定义了closeIdleConnections方法
HttpReapableConnectionManager
jest-6.3.1-sources.jar!/io/searchbox/client/config/idle/HttpReapableConnectionManager.java
public class HttpReapableConnectionManager implements ReapableConnectionManager { private final HttpClientConnectionManager connectionManager; private final NHttpClientConnectionManager nConnectionManager; public HttpReapableConnectionManager(HttpClientConnectionManager connectionManager, NHttpClientConnectionManager nConnectionManager) { if(connectionManager == null || nConnectionManager == null) throw new IllegalArgumentException(); this.connectionManager = connectionManager; this.nConnectionManager = nConnectionManager; } @Override public void closeIdleConnections(long idleTimeout, TimeUnit unit) { connectionManager.closeIdleConnections(idleTimeout, unit); nConnectionManager.closeIdleConnections(idleTimeout, unit); } }
- HttpReapableConnectionManager实现了ReapableConnectionManager接口;其构造器要求输入connectionManager及nConnectionManager,二者不能同时为null;其closeIdleConnections方法分别执行了connectionManager.closeIdleConnections及nConnectionManager.closeIdleConnections
小结
- IdleConnectionReaper继承了AbstractScheduledService,它的构造器接收clientConfig及reapableConnectionManager;其runOneIteration执行了reapableConnectionManager.closeIdleConnections;其scheduler方法创建的是fixedDelay Scheduler;其executor方法创建的是SingleThreadScheduledExecutor
- ReapableConnectionManager接口定义了closeIdleConnections方法
- HttpReapableConnectionManager实现了ReapableConnectionManager接口;其构造器要求输入connectionManager及nConnectionManager,二者不能同时为null;其closeIdleConnections方法分别执行了connectionManager.closeIdleConnections及nConnectionManager.closeIdleConnections
doc
以上所述就是小编给大家介绍的《聊聊jest的IdleConnectionReaper》,希望对大家有所帮助,如果大家有任何疑问请给我留言,小编会及时回复大家的。在此也非常感谢大家对 码农网 的支持!
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设计原本
Frederick P. Brooks, Jr. / InfoQ中文站、王海鹏、高博 / 机械工业出版社 / 2011-1-1 / 55.00元
无论是软件开发、工程还是建筑,有效的设计都是工作的核心。《设计原本:计算机科学巨匠Frederick P. Brooks的思考》将对设计过程进行深入分析,揭示进行有效和优雅设计的方法。 本书包含了多个行业设计者的特别领悟。Frederick P. Brooks, Jr.精确发现了所有设计项目中内在的不变因素,揭示 了进行优秀设计的过程和模式。通过与几十位优秀设计者的对话,以及他自己在几个设计......一起来看看 《设计原本》 这本书的介绍吧!