1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17
18 package org.apache.shardingsphere.infra.executor.sql.execute.engine.driver.jdbc;
19
20 import lombok.RequiredArgsConstructor;
21 import org.apache.shardingsphere.infra.session.connection.ConnectionContext;
22 import org.apache.shardingsphere.infra.executor.kernel.ExecutorEngine;
23 import org.apache.shardingsphere.infra.executor.kernel.model.ExecutionGroupContext;
24 import org.apache.shardingsphere.infra.executor.sql.execute.engine.SQLExecutorExceptionHandler;
25
26 import java.sql.SQLException;
27 import java.util.Collections;
28 import java.util.List;
29
30 /**
31 * JDBC executor.
32 */
33 @RequiredArgsConstructor
34 public final class JDBCExecutor {
35
36 private final ExecutorEngine executorEngine;
37
38 private final ConnectionContext connectionContext;
39
40 /**
41 * Execute.
42 *
43 * @param executionGroupContext execution group context
44 * @param callback JDBC execute callback
45 * @param <T> class type of return value
46 * @return execute result
47 * @throws SQLException SQL exception
48 */
49 public <T> List<T> execute(final ExecutionGroupContext<JDBCExecutionUnit> executionGroupContext, final JDBCExecutorCallback<T> callback) throws SQLException {
50 return execute(executionGroupContext, null, callback);
51 }
52
53 /**
54 * Execute.
55 *
56 * @param executionGroupContext execution group context
57 * @param firstCallback first JDBC execute callback
58 * @param callback JDBC execute callback
59 * @param <T> class type of return value
60 * @return execute result
61 * @throws SQLException SQL exception
62 */
63 public <T> List<T> execute(final ExecutionGroupContext<JDBCExecutionUnit> executionGroupContext,
64 final JDBCExecutorCallback<T> firstCallback, final JDBCExecutorCallback<T> callback) throws SQLException {
65 try {
66 return executorEngine.execute(executionGroupContext, firstCallback, callback, connectionContext.getTransactionContext().isInDistributedTransaction());
67 } catch (final SQLException ex) {
68 SQLExecutorExceptionHandler.handleException(ex);
69 return Collections.emptyList();
70 }
71 }
72 }