PeppaO commented on code in PR #7509: URL: https://github.com/apache/incubator-seata/pull/7509#discussion_r2250434292
########## integration-tx-api/src/main/java/org/apache/seata/integration/tx/api/interceptor/handler/CombineTransactionalInterceptorHandler.java: ########## @@ -0,0 +1,150 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You under the Apache License, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package org.apache.seata.integration.tx.api.interceptor.handler; + +import org.apache.seata.config.CachedConfigurationChangeListener; +import org.apache.seata.config.ConfigurationChangeEvent; +import org.apache.seata.core.context.RootContext; +import org.apache.seata.core.model.BranchType; +import org.apache.seata.integration.tx.api.interceptor.InvocationHandlerType; +import org.apache.seata.integration.tx.api.interceptor.InvocationWrapper; +import org.apache.seata.integration.tx.api.interceptor.SeataInterceptorPosition; +import org.apache.seata.integration.tx.api.util.ClassUtils; +import org.apache.seata.rm.datasource.combine.CombineConnectionHolder; +import org.apache.seata.rm.datasource.combine.CombineContext; +import org.apache.seata.rm.datasource.xa.ConnectionProxyXA; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import java.lang.reflect.Method; +import java.util.Set; +import java.util.concurrent.ScheduledThreadPoolExecutor; + +/** + * The type Combine transactional interceptor handler. + * + */ +public class CombineTransactionalInterceptorHandler extends AbstractProxyInvocationHandler + implements CachedConfigurationChangeListener { + + private static final Logger LOGGER = LoggerFactory.getLogger(CombineTransactionalInterceptorHandler.class); + + private Set<String> methodsToProxy; + + private static volatile ScheduledThreadPoolExecutor executor; + + public CombineTransactionalInterceptorHandler(Set<String> methodsToProxy) { + this.methodsToProxy = methodsToProxy; + } + + @Override + protected Object doInvoke(InvocationWrapper invocation) throws Throwable { + Class<?> targetClass = invocation.getTarget().getClass(); + Method specificMethod = ClassUtils.getMostSpecificMethod(invocation.getMethod(), targetClass); + if (specificMethod != null && !specificMethod.getDeclaringClass().equals(Object.class)) { + return handleCombineTransactional(invocation); + } + return invocation.proceed(); + } + + private Object handleCombineTransactional(final InvocationWrapper methodInvocation) throws Throwable { + if (!RootContext.inGlobalTransaction()) { + // not in transaction, or this interceptor is disabled + return methodInvocation.proceed(); + } + RootContext.bindBranchType(BranchType.XA); + if (!CombineContext.set()) { + // The same global transaction, the aspect does not need to enter + return methodInvocation.proceed(); + } + + try { + // First cut entry + Object result = methodInvocation.proceed(); + + // doCleanupAfterCompletion marks the end of the transaction, resets and closes the connection + CombineContext.clear(); + // doCommit + for (ConnectionProxyXA conn : CombineConnectionHolder.getDsConn()) { + conn.commit(); + } + return result; + } catch (Exception e) { + LOGGER.error( + String.format( + "@CombineTransactional failed to handle,xid: %s occur exp msg: %s", + RootContext.getXID(), e.getMessage()), + e); + CombineContext.clear(); + // doRollback + for (ConnectionProxyXA conn : CombineConnectionHolder.getDsConn()) { + conn.rollback(); + } + throw e; + } finally { + CombineContext.clear(); + for (ConnectionProxyXA conn : CombineConnectionHolder.getDsConn()) { + try { + // Reset autocommit (if not autocommitting) + if (!conn.getAutoCommit()) { + conn.setAutoCommit(true); + } + } catch (Throwable t) { + // Record the exception of resetting the auto-commit, but do not interrupt and continue to try to + // close + LOGGER.error("Failed to reset autoCommit to true for connection: {}", conn, t); + } + try { + if (conn.isClosed()) { + LOGGER.warn("Connection is closed: {}", conn); + } + conn.close(); + } catch (Throwable t) { + // Record the exception of closing the connection, but do not interrupt the loop and continue to + // process the next connection + LOGGER.error("Failed to close connection: {}", conn, t); + } + } + // Clean up local cache connections + CombineConnectionHolder.clear(); + RootContext.unbindBranchType(); + } + } + + @Override + public void onChangeEvent(ConfigurationChangeEvent event) {} + + @Override + public Set<String> getMethodsToProxy() { + return methodsToProxy; + } + + @Override + public SeataInterceptorPosition getPosition() { + return SeataInterceptorPosition.AfterTransaction; + } + + @Override + public String type() { + return InvocationHandlerType.CombineTransactional.name(); + } + + @Override + public int order() { + return 1; Review Comment: yes，globalTrasnactional‘s order num is 0 -- This is an automated message from the Apache Git Service. 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