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update: fescar的DataSource拦截改成Ioc事件监听器来做, 实现对任意数据源的全局事务支持,不仅限于NutDao
需要配合最新的nutz版本,否则DataSource替换会失败 不良后果: 由于DataSourceProxy并没有继承DruidDataSource,所以depose event对应的close方法不存在 但nutzboot服务器一般不存在关闭流程,所以这个影响应该是可以接受的
This commit is contained in:
Wendal Chen
parent
343d164aad
commit
65f26c4b45
@ -1,26 +1,16 @@
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package org.nutz.boot.starter.fescar;
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import java.sql.Connection;
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import java.sql.Statement;
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import javax.sql.DataSource;
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import org.nutz.boot.AppContext;
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import org.nutz.boot.annotation.PropDoc;
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import org.nutz.boot.starter.ServerFace;
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import org.nutz.dao.impl.NutDao;
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import org.nutz.ioc.impl.PropertiesProxy;
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import org.nutz.ioc.loader.annotation.Inject;
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import org.nutz.ioc.loader.annotation.IocBean;
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import org.nutz.log.Log;
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import org.nutz.log.Logs;
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import com.alibaba.druid.pool.DruidDataSource;
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import com.alibaba.fescar.common.util.StringUtils;
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import com.alibaba.fescar.config.ConfigurationFactory;
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import com.alibaba.fescar.rm.RMClient;
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import com.alibaba.fescar.rm.datasource.DataSourceManager;
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import com.alibaba.fescar.rm.datasource.DataSourceProxy;
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import com.alibaba.fescar.tm.TMClient;
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@IocBean
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@ -45,14 +35,12 @@ public class FescarStarter implements ServerFace {
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@Inject
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protected AppContext appContext;
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private final boolean disableGlobalTransaction = ConfigurationFactory.getInstance().getBoolean("service.disableGlobalTransaction", false);
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private String applicationId;
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private String txServiceGroup;
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@Override
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public void start() throws Exception {
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if (disableGlobalTransaction) {
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if (FescarHelper.disableGlobalTransaction) {
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if (log.isInfoEnabled()) {
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log.info("Global transaction is disabled.");
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}
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@ -67,40 +55,6 @@ public class FescarStarter implements ServerFace {
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log.infof("fescar applicationId=%s txServiceGroup=%s", applicationId, txServiceGroup);
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initClient();
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DataSource ds = appContext.getIoc().get(DataSource.class);
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if (!(ds instanceof DruidDataSource)) {
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log.error("only DruidDataSource is support by fescar!!!");
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throw new RuntimeException("only DruidDataSource is support by fescar!!!");
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}
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if (conf.getBoolean(PROP_CREATE_UNDO, true)) {
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try (Connection conn = ds.getConnection()) {
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Statement st = conn.createStatement();
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st.execute("CREATE TABLE IF NOT EXISTS " + "`undo_log` (\r\n" +
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" `id` bigint(20) NOT NULL AUTO_INCREMENT,\r\n" +
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" `branch_id` bigint(20) NOT NULL,\r\n" +
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" `xid` varchar(100) NOT NULL,\r\n" +
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" `rollback_info` longblob NOT NULL,\r\n" +
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" `log_status` int(11) NOT NULL,\r\n" +
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" `log_created` datetime NOT NULL,\r\n" +
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" `log_modified` datetime NOT NULL,\r\n" +
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" `ext` varchar(100) DEFAULT NULL,\r\n" +
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" PRIMARY KEY (`id`),\r\n" +
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" UNIQUE KEY `ux_undo_log` (`xid`,`branch_id`)\r\n" +
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") ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8");
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st.close();
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}
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}
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DataSourceProxy proxy = new DataSourceProxy((DruidDataSource) ds, "DEFAULT");
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DataSourceManager.get().registerResource(proxy);
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if (appContext.getIoc().has("dao")) {
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log.info("looking for NutDao instance and replace DataSource");
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NutDao dao = appContext.getIoc().get(NutDao.class, "dao");
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dao.setDataSource(proxy);
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}
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else {
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log.info("NutDao instance not found, skip it");
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}
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}
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protected void initClient() {
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@ -108,15 +62,12 @@ public class FescarStarter implements ServerFace {
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log.info("Initializing Global Transaction Clients ... ");
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}
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if (StringUtils.isNullOrEmpty(applicationId) || StringUtils.isNullOrEmpty(txServiceGroup)) {
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throw new IllegalArgumentException(
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"applicationId: " + applicationId + ", txServiceGroup: " + txServiceGroup);
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throw new IllegalArgumentException("applicationId: " + applicationId + ", txServiceGroup: " + txServiceGroup);
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}
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// init TM
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TMClient.init(applicationId, txServiceGroup);
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if (log.isInfoEnabled()) {
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log.info(
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"Transaction Manager Client is initialized. applicationId[" + applicationId + "] txServiceGroup["
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+ txServiceGroup + "]");
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log.info("Transaction Manager Client is initialized. applicationId[" + applicationId + "] txServiceGroup[" + txServiceGroup + "]");
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}
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// init RM
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RMClient.init(applicationId, txServiceGroup);
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@ -0,0 +1,75 @@
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package org.nutz.boot.starter.fescar.datasource;
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import java.sql.Connection;
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import java.sql.Statement;
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import org.nutz.boot.starter.fescar.FescarHelper;
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import org.nutz.boot.starter.fescar.FescarStarter;
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import org.nutz.ioc.IocEventListener;
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import org.nutz.ioc.impl.PropertiesProxy;
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import org.nutz.ioc.loader.annotation.Inject;
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import org.nutz.ioc.loader.annotation.IocBean;
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import org.nutz.log.Log;
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import org.nutz.log.Logs;
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import com.alibaba.druid.pool.DruidDataSource;
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import com.alibaba.fescar.rm.datasource.DataSourceManager;
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import com.alibaba.fescar.rm.datasource.DataSourceProxy;
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@IocBean
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public class FescarDataSourceHandler implements IocEventListener {
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private static final Log log = Logs.get();
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@Inject
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protected PropertiesProxy conf;
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public Object afterBorn(Object obj, String beanName) {
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return obj;
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}
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public Object afterCreate(Object obj, String beanName) {
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if (obj == null)
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return null;
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if (obj instanceof DruidDataSource) {
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if (FescarHelper.disableGlobalTransaction) {
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if (log.isInfoEnabled()) {
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log.info("Global transaction is disabled.");
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}
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return obj;
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}
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log.info("proxy DruidDataSource : " + obj.hashCode());
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DruidDataSource ds = (DruidDataSource)obj;
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DataSourceProxy proxy = new DataSourceProxy(ds, "DEFAULT");
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DataSourceManager.get().registerResource(proxy);
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if (conf.getBoolean(FescarStarter.PROP_CREATE_UNDO, true)) {
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try (Connection conn = ds.getConnection()) {
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Statement st = conn.createStatement();
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st.execute("CREATE TABLE IF NOT EXISTS " + "`undo_log` (\r\n" +
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" `id` bigint(20) NOT NULL AUTO_INCREMENT,\r\n" +
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" `branch_id` bigint(20) NOT NULL,\r\n" +
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" `xid` varchar(100) NOT NULL,\r\n" +
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" `rollback_info` longblob NOT NULL,\r\n" +
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" `log_status` int(11) NOT NULL,\r\n" +
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" `log_created` datetime NOT NULL,\r\n" +
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" `log_modified` datetime NOT NULL,\r\n" +
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" `ext` varchar(100) DEFAULT NULL,\r\n" +
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" PRIMARY KEY (`id`),\r\n" +
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" UNIQUE KEY `ux_undo_log` (`xid`,`branch_id`)\r\n" +
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") ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8");
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st.close();
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}
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catch (Throwable e) {
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log.warn("fail to create fescar's undo_log table", e);
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}
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}
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return proxy;
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}
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return obj;
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}
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public int getOrder() {
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return 0;
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}
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}
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