• [转]Thrift连接池实现


    简介

    Thrift是Facebook的核心框架之一,使不同的开发语言开发的系统可以通过该框架实现彼此的通信,类似于webservice,但是Thrift提供了近乎变态的效率和开发的方便性,是webservice所不能比拟的。给分布式开发带来了极大的方便。但是这柄利器也有一些不完美。

    问题

    首先文档相当的少,只有一个wiki网站提供相应的帮助。这对于Thrift的推广极为不利。

    其次框架本身实现有一些缺陷,就Thrift的java部分来说,没有提供连接池的支持,对RPC的调用效率有所影响。

    对于文档稀少的问题,只能是通过一些Thrift的开发者和使用者多供献一些自己的心得来解决。这得需要一个过程。而连接池的问题的解决则可以快速一些。

             提到池一般做过Java开发的肯定会想到ObjectPool,Apache Commons项目确实给我们的开发得来了很大的便利性,其中的pool项目正是我们实现thrift连接池的基础,当然也少不了神器spring framework。

    实现

    一,定义thrift连接池接口

    ConnectionProvider 
    
    Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->/*
     * @(#)ConnectionProvider.java    0.1 05/11/17
     *
     * Copyright 2010 QISI, Inc. All rights reserved.
     * QISI PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
     */
    package com.qidea.thrift.pool;
    import org.apache.thrift.transport.TSocket;
    /**
     * 
     * @author sunwei
     * @version 2010-8-6
     * @since JDK1.5
     */
    public interface ConnectionProvider
    {
        /**
         * 取链接池中的一个链接
         * 
         * @return
         */
        public TSocket getConnection();
        /**
         * 返回链接
         * 
         * @param socket
         */
        public void returnCon(TSocket socket);
    }

    二,实现连接池

    GenericConnectionProvider 
    
    Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->/*
     * @(#)DefaultConnectionProviderImpl.java    0.1 05/11/17
     *
     * Copyright 2010 QISI, Inc. All rights reserved.
     * QISI PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
     */
    package com.qidea.thrift.pool;
    import org.apache.commons.pool.ObjectPool;
    import org.apache.commons.pool.impl.GenericObjectPool;
    import org.apache.thrift.transport.TSocket;
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    import org.springframework.beans.factory.DisposableBean;
    import org.springframework.beans.factory.InitializingBean;
    /**
     * 
     * @author sunwei
     * @version 2010-8-10
     * @since JDK1.5
     */
    public class GenericConnectionProvider implements ConnectionProvider,
            InitializingBean, DisposableBean
    {
        public static final Logger logger = LoggerFactory
                .getLogger(GenericConnectionProvider.class);
        /** 服务的IP地址 */
        private String serviceIP;
        /** 服务的端口 */
        private int servicePort;
        /** 连接超时配置 */
        private int conTimeOut;
        /** 可以从缓存池中分配对象的最大数量 */
        private int maxActive = GenericObjectPool.DEFAULT_MAX_ACTIVE;
        /** 缓存池中最大空闲对象数量 */
        private int maxIdle = GenericObjectPool.DEFAULT_MAX_IDLE;
        /** 缓存池中最小空闲对象数量 */
        private int minIdle = GenericObjectPool.DEFAULT_MIN_IDLE;
        /** 阻塞的最大数量 */
        private long maxWait = GenericObjectPool.DEFAULT_MAX_WAIT;
        /** 从缓存池中分配对象,是否执行PoolableObjectFactory.validateObject方法 */
        private boolean testOnBorrow = GenericObjectPool.DEFAULT_TEST_ON_BORROW;
        private boolean testOnReturn = GenericObjectPool.DEFAULT_TEST_ON_RETURN;
        private boolean testWhileIdle = GenericObjectPool.DEFAULT_TEST_WHILE_IDLE;
        /** 对象缓存池 */
        private ObjectPool objectPool = null;
        /**
         * 
         */
        @Override
        public void afterPropertiesSet() throws Exception
        {
            // 对象池
            objectPool = new GenericObjectPool();
            //
            ((GenericObjectPool) objectPool).setMaxActive(maxActive);
            ((GenericObjectPool) objectPool).setMaxIdle(maxIdle);
            ((GenericObjectPool) objectPool).setMinIdle(minIdle);
            ((GenericObjectPool) objectPool).setMaxWait(maxWait);
            ((GenericObjectPool) objectPool).setTestOnBorrow(testOnBorrow);
            ((GenericObjectPool) objectPool).setTestOnReturn(testOnReturn);
            ((GenericObjectPool) objectPool).setTestWhileIdle(testWhileIdle);
            ((GenericObjectPool) objectPool)
                    .setWhenExhaustedAction(GenericObjectPool.WHEN_EXHAUSTED_BLOCK);
            // 设置factory
            ThriftPoolableObjectFactory thriftPoolableObjectFactory = new ThriftPoolableObjectFactory(
                    serviceIP, servicePort, conTimeOut);
            objectPool.setFactory(thriftPoolableObjectFactory);
        }
        @Override
        public void destroy()
        {
            try
            {
                objectPool.close();
            }
            catch (Exception e)
            {
                throw new RuntimeException("erorr destroy()", e);
            }
        }
        @Override
        public TSocket getConnection()
        {
            try
            {
                TSocket socket = (TSocket) objectPool.borrowObject();
                return socket;
            }
            catch (Exception e)
            {
                throw new RuntimeException("error getConnection()", e);
            }
        }
        @Override
        public void returnCon(TSocket socket)
        {
            try
            {
                objectPool.returnObject(socket);
            }
            catch (Exception e)
            {
                throw new RuntimeException("error returnCon()", e);
            }
        }
        public String getServiceIP()
        {
            return serviceIP;
        }
        public void setServiceIP(String serviceIP)
        {
            this.serviceIP = serviceIP;
        }
        public int getServicePort()
        {
            return servicePort;
        }
        public void setServicePort(int servicePort)
        {
            this.servicePort = servicePort;
        }
        public int getConTimeOut()
        {
            return conTimeOut;
        }
        public void setConTimeOut(int conTimeOut)
        {
            this.conTimeOut = conTimeOut;
        }
        public int getMaxActive()
        {
            return maxActive;
        }
        public void setMaxActive(int maxActive)
        {
            this.maxActive = maxActive;
        }
        public int getMaxIdle()
        {
            return maxIdle;
        }
        public void setMaxIdle(int maxIdle)
        {
            this.maxIdle = maxIdle;
        }
        public int getMinIdle()
        {
            return minIdle;
        }
        public void setMinIdle(int minIdle)
        {
            this.minIdle = minIdle;
        }
        public long getMaxWait()
        {
            return maxWait;
        }
        public void setMaxWait(long maxWait)
        {
            this.maxWait = maxWait;
        }
        public boolean isTestOnBorrow()
        {
            return testOnBorrow;
        }
        public void setTestOnBorrow(boolean testOnBorrow)
        {
            this.testOnBorrow = testOnBorrow;
        }
        public boolean isTestOnReturn()
        {
            return testOnReturn;
        }
        public void setTestOnReturn(boolean testOnReturn)
        {
            this.testOnReturn = testOnReturn;
        }
        public boolean isTestWhileIdle()
        {
            return testWhileIdle;
        }
        public void setTestWhileIdle(boolean testWhileIdle)
        {
            this.testWhileIdle = testWhileIdle;
        }
        public ObjectPool getObjectPool()
        {
            return objectPool;
        }
        public void setObjectPool(ObjectPool objectPool)
        {
            this.objectPool = objectPool;
        }
    }
    ThriftPoolableObjectFactory 
    
    Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->/*
     * @(#)ThriftPoolableObjectFactory.java    0.1 05/11/17
     *
     * Copyright 2010 QISI, Inc. All rights reserved.
     * QISI PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
     */
    package com.qidea.thrift.pool;
    import org.apache.commons.pool.PoolableObjectFactory;
    import org.apache.thrift.transport.TSocket;
    import org.apache.thrift.transport.TTransport;
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    /**
     * 
     * @author sunwei
     * @version 2010-8-10
     * @since JDK1.5
     */
    public class ThriftPoolableObjectFactory implements PoolableObjectFactory
    {
        /** 日志记录器 */
        public static final Logger logger = LoggerFactory
                .getLogger(ThriftPoolableObjectFactory.class);
        /** 服务的IP */
        private String serviceIP;
        /** 服务的端口 */
        private int servicePort;
        /** 超时设置 */
        private int timeOut;
        /**
         * 
         * @param serviceIP
         * @param servicePort
         * @param timeOut
         */
        public ThriftPoolableObjectFactory(String serviceIP, int servicePort,
                int timeOut)
        {
            this.serviceIP = serviceIP;
            this.servicePort = servicePort;
            this.timeOut = timeOut;
        }
        @Override
        public void destroyObject(Object arg0) throws Exception
        {
            if (arg0 instanceof TSocket)
            {
                TSocket socket = (TSocket) arg0;
                if (socket.isOpen())
                {
                    socket.close();
                }
            }
        }
        /**
         * 
         */
        @Override
        public Object makeObject() throws Exception
        {
            try
            {
                TTransport transport = new TSocket(this.serviceIP,
                        this.servicePort, this.timeOut);
                transport.open();
                return transport;
            }
            catch (Exception e)
            {
                logger.error("error ThriftPoolableObjectFactory()", e);
                throw new RuntimeException(e);
            }
        }
        @Override
        public boolean validateObject(Object arg0)
        {
            try
            {
                if (arg0 instanceof TSocket)
                {
                    TSocket thriftSocket = (TSocket) arg0;
                    if (thriftSocket.isOpen())
                    {
                        return true;
                    }
                    else
                    {
                        return false;
                    }
                }
                else
                {
                    return false;
                }
            }
            catch (Exception e)
            {
                return false;
            }
        }
        @Override
        public void passivateObject(Object arg0) throws Exception
        {
            // DO NOTHING
        }
        @Override
        public void activateObject(Object arg0) throws Exception
        {
            // DO NOTHING
        }
        public String getServiceIP()
        {
            return serviceIP;
        }
        public void setServiceIP(String serviceIP)
        {
            this.serviceIP = serviceIP;
        }
        public int getServicePort()
        {
            return servicePort;
        }
        public void setServicePort(int servicePort)
        {
            this.servicePort = servicePort;
        }
        public int getTimeOut()
        {
            return timeOut;
        }
        public void setTimeOut(int timeOut)
        {
            this.timeOut = timeOut;
        }
    }

      三,定义连接的管理类 

    ConnectionManager 
    
    Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->/*
     * @(#)ConnectionManager.java    0.1 05/11/17
     *
     * Copyright 2010 QISI, Inc. All rights reserved.
     * QISI PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
     */
    package com.qidea.thrift.pool;
    import org.aopalliance.intercept.MethodInterceptor;
    import org.aopalliance.intercept.MethodInvocation;
    import org.apache.thrift.transport.TSocket;
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    /**
     * 
     * @author sunwei
     * @version 2010-8-10
     * @since JDK1.5
     */
    public class ConnectionManager implements MethodInterceptor
    {
        /** 日志记录器 */
        public Logger logger = LoggerFactory.getLogger(ConnectionManager.class);
        /** 保存local对象 */
        ThreadLocal<TSocket> socketThreadSafe = new ThreadLocal<TSocket>();
        /** 连接提供池 */
        public ConnectionProvider connectionProvider;
        @Override
        public Object invoke(MethodInvocation arg0) throws Throwable
        {
            TSocket socket = null;
            try
            {
                socket = connectionProvider.getConnection();
                socketThreadSafe.set(socket);
                Object ret = arg0.proceed();
                return ret;
            }
            catch (Exception e)
            {
                logger.error("error ConnectionManager.invoke()", e);
                throw new Exception(e);
            }
            finally
            {
                connectionProvider.returnCon(socket);
                socketThreadSafe.remove();
            }
        }
        /**
         * 取socket
         * 
         * @return
         */
        public TSocket getSocket()
        {
            return socketThreadSafe.get();
        }
        public ConnectionProvider getConnectionProvider()
        {
            return connectionProvider;
        }
        public void setConnectionProvider(ConnectionProvider connectionProvider)
        {
            this.connectionProvider = connectionProvider;
        }
    }

    四,定义spring配置,对受管的bean提供thrift连接

    Thrift连接池spring配置 
    
    Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/--><?xml version="1.0" encoding="UTF-8"?>
    <beans xmlns="http://www.springframework.org/schema/beans"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:jee="http://www.springframework.org/schema/jee"
        xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
        xmlns:flex="http://www.springframework.org/schema/flex" xmlns:context="http://www.springframework.org/schema/context"
        xsi:schemaLocation="http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd
        http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-2.5.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsd
        http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd
          http://www.springframework.org/schema/flex http://www.springframework.org/schema/flex/spring-flex-1.0.xsd">
    
        <!-- thrift连接池配置 -->
        <bean id="connectionProvider" class="com.qidea.thrift.pool.GenericConnectionProvider">
            <property name="serviceIP" value="localhost" />
            <property name="servicePort" value="9090" />
            <property name="maxActive" value="10" />
            <property name="maxIdle" value="10" />
            <property name="testOnBorrow" value="true" />
            <property name="testOnReturn" value="true" />
            <property name="testWhileIdle" value="true" />
            <property name="conTimeOut" value="2000" />
        </bean>
        <!-- thrift连接管理配置  -->
        <bean id="connectionManager" class="com.qidea.thrift.pool.ConnectionManager">
            <property name="connectionProvider" ref="connectionProvider" />
        </bean>
        <!-- 客户端接口配置  -->
        <bean class="com.qidea.pushserver.rpc.client.PushServiceClient">
            <property name="connectionManager" ref="connectionManager" />
        </bean>
        <!-- thrift连接AOP配置  -->
        <aop:config proxy-target-class="true">
            <aop:pointcut id="clientMethods"
                expression="execution(* com.qidea.pushserver.rpc.client.*.*(..))" />
            <aop:advisor advice-ref="connectionManager" pointcut-ref="clientMethods" />
        </aop:config>
    </beans>

    五,使用连接池

    PushRPCClient 
    
    Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->/*
     * @(#)PushRPCClient.java    0.1 05/11/17
     *
     * Copyright 2010 QISI, Inc. All rights reserved.
     * QISI PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
     */
    package com.qidea.pushserver.rpc;
    import java.util.ArrayList;
    import java.util.List;
    import org.apache.thrift.TException;
    import org.apache.thrift.protocol.TBinaryProtocol;
    import org.apache.thrift.protocol.TProtocol;
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    import com.qidea.pushserver.ServiceException;
    import com.qidea.thrift.pool.ConnectionManager;
    /**
     * 
     * @author sunwei
     * @version 2010-8-11
     * @since JDK1.5
     */
    public class PushRPCClient
    {
        public static Logger logger = LoggerFactory.getLogger(PushRPCClient.class);
        private ConnectionManager connectionManager;
        /**
         * 取在线玩家列表
         * 
         * @param roleIdList
         * @return
         * @throws ServiceException
         */
        public List<Long> getOnLineRoleIdList(List<Long> roleIdList)
        {
            TProtocol protocol = new TBinaryProtocol(connectionManager.getSocket());
            PushRPCService.Client client = new PushRPCService.Client(protocol);
            try
            {
                List<Long> onLineIdList = client.getOnLineRoleIdList(roleIdList);
                return onLineIdList;
            }
            catch (TException e)
            {
                logger.error("error getOnLineRoleIdList()", e);
            }
            return new ArrayList<Long>();
        }
        /**
         * 解散联盟
         * 
         * @param allianceId
         */
        public void dismissAlliance(long allianceId)
        {
            TProtocol protocol = new TBinaryProtocol(connectionManager.getSocket());
            PushRPCService.Client client = new PushRPCService.Client(protocol);
            try
            {
                client.dismissAlliance(allianceId);
            }
            catch (TException e)
            {
                logger.error("error dismissAlliance()", e);
            }
        }
        /**
         * 加入联盟
         * 
         * @param roleId
         * @param allianceId
         */
        public void joinAlliance(long roleId, long allianceId)
        {
            TProtocol protocol = new TBinaryProtocol(connectionManager.getSocket());
            PushRPCService.Client client = new PushRPCService.Client(protocol);
            try
            {
                client.joinAlliance(roleId, allianceId);
            }
            catch (TException e)
            {
                logger.error("error joinAlliance()", e);
            }
        }
        /**
         * 解散联盟
         * 
         * @param roleId
         * @param allianceId
         */
        public void getOutAlliance(long roleId, long allianceId)
        {
            TProtocol protocol = new TBinaryProtocol(connectionManager.getSocket());
            PushRPCService.Client client = new PushRPCService.Client(protocol);
            try
            {
                client.getOutAlliance(roleId, allianceId);
            }
            catch (Exception e)
            {
                logger.error("error getOutAlliance()", e);
            }
        }
        public ConnectionManager getConnectionManager()
        {
            return connectionManager;
        }
        public void setConnectionManager(ConnectionManager connectionManager)
        {
            this.connectionManager = connectionManager;
        }
    }
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  • 原文地址:https://www.cnblogs.com/lihaozy/p/3035113.html
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