JDG_003：JDG 6.3 Quick Start 例子学习：Carmart

运行环境：JBoss Data Grid 6.3.0

Carmart既可以运行在Library mode下，也可以运行在Remote Client-Server mode下。

学习重点：

1. Library mode和Remote Client-Server mode编译时是如何切换的？
（1）编译前，选择library-jbossas profile，profile具体信息查看pom.xml。

@ApplicationScoped
public class LocalCacheContainerProvider extends CacheContainerProvider {
    private Logger log = Logger.getLogger(this.getClass().getName());

    private BasicCacheContainer manager;

    public BasicCacheContainer getCacheContainer() {
        if (manager == null) {
            GlobalConfiguration glob = new GlobalConfigurationBuilder()
                .nonClusteredDefault() //Helper method that gets you a default constructed GlobalConfiguration, preconfigured for use in LOCAL mode
                .globalJmxStatistics().enable() //This method allows enables the jmx statistics of the global configuration.
                .build(); //Builds  the GlobalConfiguration object
            Configuration loc = new ConfigurationBuilder()
                .jmxStatistics().enable() //Enable JMX statistics
                .clustering().cacheMode(CacheMode.LOCAL) //Set Cache mode to LOCAL - Data is not replicated.
                .locking().isolationLevel(IsolationLevel.REPEATABLE_READ) //Sets the isolation level of locking
                .eviction().maxEntries(4).strategy(EvictionStrategy.LIRS) //Sets  4 as maximum number of entries in a cache instance and uses the LIRS strategy - an efficient low inter-reference recency set replacement policy to improve buffer cache performance
                .persistence().passivation(false).addSingleFileStore().purgeOnStartup(true) //Disable passivation and adds a SingleFileStore that is Purged on Startup
                .build(); //Builds the Configuration object
            manager = new DefaultCacheManager(glob, loc, true);
            log.info("=== Using DefaultCacheManager (library mode) ===");
        }
        return manager;
    }

    @PreDestroy
    public void cleanUp() {
        manager.stop();
        manager = null;
    }
}

（2）编译前，选择remote-jbossas profile，profile具体信息查看pom.xml。
@ApplicationScoped
public class RemoteCacheContainerProvider extends CacheContainerProvider {

    private Logger log = Logger.getLogger(this.getClass().getName());

    private BasicCacheContainer manager;

    public BasicCacheContainer getCacheContainer() {
        if (manager == null) {
            ConfigurationBuilder builder = new ConfigurationBuilder();
            builder.addServer()
                 .host(jdgProperty(DATAGRID_HOST))
                 .port(Integer.parseInt(jdgProperty(HOTROD_PORT)));
            manager = new RemoteCacheManager(builder.build());
            log.info("=== Using RemoteCacheManager (Hot Rod) ===");
        }
        return manager;
    }

    @PreDestroy
    public void cleanUp() {
        manager.stop();
        manager = null;
    }
}

2. 依赖注入到CarManager中的CacheContainerProvider，使用的到底是哪个实现？
@Inject
private CacheContainerProvider provider;
选择不同的profile进行编译时，只有一个实现，要么是library mode，要么是remote client-server mode，所以不会冲突。

3. EmbeddedCacheManager 返回的是Cache类型的缓存实例，RemoteCacheManager返回的是 RemoteCache类型的缓存实例，二者有共同的接口吗？
有，BasicCache。
private BasicCache carCache;

4. 编译、部署、运行

4.1 library mode
（1）编译：选择library-jbossas profile
（2）启动JBoss EAP 6.3
cd /Users/maping/Redhat/Eap/jboss-eap-6.3-jdg-carmart/bin
./standalone.sh。
（3）访问：http://localhost:8080/jboss-carmart。

4.2 remote client-server mode
（1）编译：选择remote-jbossas profile
（2）启动JBoss EAP 6.3
cd /Users/maping/Redhat/Eap/jboss-eap-6.3-jdg-carmart/bin
./standalone.sh
（3）修改JBoss Data Grid 6.3中的配置文件 standalone.xml，增加carcache
<subsystem xmlns="urn:infinispan:server:core:6.1" default-cache-container="local">
            <cache-container name="local" default-cache="default" statistics="true">
                <local-cache name="carcache" start="EAGER"
                             batching="false"
                             statistics="true">
                    <eviction strategy="LIRS" max-entries="4"/>
                </local-cache>
                <local-cache name="default" start="EAGER">
                    <locking isolation="NONE" acquire-timeout="30000" concurrency-level="1000" striping="false"/>
                    <transaction mode="NONE"/>
                </local-cache>
                <local-cache name="memcachedCache" start="EAGER">
                    <locking isolation="NONE" acquire-timeout="30000" concurrency-level="1000" striping="false"/>
                    <transaction mode="NONE"/>
                </local-cache>
                <local-cache name="namedCache" start="EAGER"/>
            </cache-container>
            <cache-container name="security"/>
</subsystem>

（4）启动JBoss Data Grid 6.3
/Users/maping/Redhat/Datagrid/jboss-datagrid-6.3.0-server/bin
./standalone.sh -c standalone-carmart.xml

（5）访问：http://localhost:8080/jboss-carmart。