roodkcab commented on a change in pull request #14130:
URL: https://github.com/apache/shardingsphere/pull/14130#discussion_r771771667
##########
File path:
shardingsphere-kernel/shardingsphere-transaction/shardingsphere-transaction-core/src/main/java/org/apache/shardingsphere/transaction/core/TransactionType.java
##########
@@ -22,7 +22,7 @@
*/
public enum TransactionType {
- LOCAL, XA, BASE;
+ LOCAL, XA, BASE, MANUALXA;
Review comment:
yes, how about JTAXA?
##########
File path:
shardingsphere-proxy/shardingsphere-proxy-backend/src/main/java/org/apache/shardingsphere/proxy/backend/text/transaction/TransactionXAHandler.java
##########
@@ -0,0 +1,105 @@
+/*
+ * 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.shardingsphere.proxy.backend.text.transaction;
+
+import lombok.RequiredArgsConstructor;
+import org.apache.shardingsphere.infra.binder.statement.SQLStatementContext;
+import
org.apache.shardingsphere.proxy.backend.communication.jdbc.connection.JDBCBackendConnection;
+import
org.apache.shardingsphere.proxy.backend.communication.jdbc.transaction.BackendTransactionManager;
+import org.apache.shardingsphere.proxy.backend.response.header.ResponseHeader;
+import org.apache.shardingsphere.proxy.backend.session.ConnectionSession;
+import org.apache.shardingsphere.proxy.backend.text.TextProtocolBackendHandler;
+import
org.apache.shardingsphere.proxy.backend.text.data.impl.SchemaAssignedDatabaseBackendHandler;
+import
org.apache.shardingsphere.sql.parser.sql.common.statement.tcl.TCLStatement;
+import
org.apache.shardingsphere.sql.parser.sql.common.statement.tcl.XAStatement;
+import org.apache.shardingsphere.transaction.TransactionHolder;
+import org.apache.shardingsphere.transaction.core.TransactionType;
+
+import java.sql.SQLException;
+import java.util.Collection;
+import java.util.Collections;
+
+/**
+ * XA transaction handler.
+ */
+@RequiredArgsConstructor
+public final class TransactionXAHandler implements TextProtocolBackendHandler {
+
+ private final XAStatement tclStatement;
+
+ private final ConnectionSession connectionSession;
+
+ private final SchemaAssignedDatabaseBackendHandler backendHandler;
+
+ public TransactionXAHandler(final SQLStatementContext<? extends
TCLStatement> sqlStatementContext, final String sql, final ConnectionSession
connectionSession) {
+ this.tclStatement = (XAStatement)
sqlStatementContext.getSqlStatement();
+ this.connectionSession = connectionSession;
+ this.backendHandler = new
SchemaAssignedDatabaseBackendHandler(sqlStatementContext, sql,
connectionSession);
+ }
+
+ @Override
+ public boolean next() throws SQLException {
+ return this.tclStatement.getOp().equals("RECOVER") &&
this.backendHandler.next();
+ }
+
+ @Override
+ public Collection<Object> getRowData() throws SQLException {
+ return this.tclStatement.getOp().equals("RECOVER") ?
this.backendHandler.getRowData() : Collections.emptyList();
+ }
+
+ @Override
+ public ResponseHeader execute() throws SQLException {
+ switch (tclStatement.getOp()) {
+ case "START":
+ case "BEGIN":
+ /**
+ * we have to let session occupy the thread when doing xa
transaction.
+ * according to
https://dev.mysql.com/doc/refman/5.7/en/xa-states.html XA and local
transactions are mutually exclusive
+ */
+ if
(connectionSession.getTransactionStatus().isInTransaction()) {
+ if (TransactionType.MANUALXA !=
connectionSession.getTransactionStatus().getTransactionType()) {
+ BackendTransactionManager backendTransactionManager =
new BackendTransactionManager((JDBCBackendConnection)
connectionSession.getBackendConnection());
+ backendTransactionManager.commit();
+ } else {
+ throw new SQLException("already in XA transaction");
+ }
+ }
+ TransactionHolder.setInTransaction();
+ connectionSession.setAutoCommit(false);
+ connectionSession.getTransactionStatus().setManualXA(true);
+ JDBCBackendConnection connection = (JDBCBackendConnection)
connectionSession.getBackendConnection();
+ connection.closeDatabaseCommunicationEngines(true);
+ connection.closeConnections(false);
+ return backendHandler.execute();
+ case "END":
+ case "PREPARE":
+ case "RECOVER":
+ return backendHandler.execute();
+ case "COMMIT":
+ case "ROLLBACK":
+ try {
+ return backendHandler.execute();
+ } finally {
+
connectionSession.getTransactionStatus().setManualXA(false);
+ TransactionHolder.clear();
+ }
+ default:
+ throw new SQLException("unrecognized XA statement");
Review comment:
no problem
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