melon-idfactory

<context:component-scan base-package="com.fetech"/>

<bean id="propertyConfigurer" class="com.fetech.melon.context.property.MelonPropertyPlaceholderConfigurer">
    <property name="locations">
        <list>
            <value>classpath*:META-INF/melon/idfactory_conf.properties</value>
        </list>
    </property>
</bean>

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = {"classpath*:META-INF/spring/spring-test-idfactory-client.xml"})
public class TestIF {

    @Resource
    private IdFactoryClient idFactoryClient;

    @Test
    public void uuid() {
        LogUtil.debug("uuid:");
        for (int i = 0; i < 10; i++) {
            LogUtil.debug(idFactoryClient.getUUID());
        }
    }

    @Test
    public void uid() {
        LogUtil.debug("64 uid:");
        for (int i = 0; i < 10; i++) {
            long id = idFactoryClient.get64Uid();
            LogUtil.debug(id + "");
            LogUtil.debug(idFactoryClient.parse64Uid(id));
        }
    }

    @Test
    public void incrementId() {
        LogUtil.debug("auto increment id:");
        for (int i = 0; i < 10; i++) {
            LogUtil.debug(idFactoryClient.getIncrementId("test_1") + "");
        }
    }

    @Test
    public void incrementId2() {
        LogUtil.debug("auto increment2 id:");
        boolean ret = idFactoryClient.initIncrementId("test_2", 10);
        Assert.assertTrue(ret);
        for (int i = 0; i < 10; i++) {
            LogUtil.debug(idFactoryClient.getIncrementId("test_2") + "");
        }
    }
}

/**
 * 获取自增长的主键
 *
 * @param key 主键的key，一般可以使用表名
 * @return long exp:1,2,3...
 */
long getIncrementId(String key);

/**
 * 手动初始化自增长的主键，一般初始化一次即可，如没有初始化，默认getIncrementId从1开始
 *
 * @param key   主键的key，一般可以使用表名
 * @param start 组件的初始值，默认为0，则从1开始
 * @return boolean 初始化成功或失败
 */
boolean initIncrementId(String key, long start);

/**
 * 获取32位的UUID
 *
 * @return String exp:ea5846a348764fc4a7311d6a340e9d14,ae2653087ec84dd59b3adcf4c307cf97...
 */
String getUUID();

/**
 * 获取有序的64位的ID，推荐使用
 *
 * @return long exp:69728553533104128,69728553533104129,69728553533104130...
 */
long get64Uid();

/**
 * 解析有序的64位的ID
 *
 * @param uid 有序的64位的ID
 * @return json exp:
 * {
 * "UID": "69728553533104129",
 * "timestamp": "2017-11-08 11:42:48",
 * "workerId": "87",
 * "sequence": "1"
 * }
 */
String parse64Uid(long uid);