| /* |
| * 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.skywalking.oap.server.storage.plugin.jdbc; |
| |
| import lombok.RequiredArgsConstructor; |
| import lombok.extern.slf4j.Slf4j; |
| import org.apache.skywalking.oap.server.library.client.request.InsertRequest; |
| import org.apache.skywalking.oap.server.library.client.request.PrepareRequest; |
| import org.apache.skywalking.oap.server.library.client.request.UpdateRequest; |
| import java.sql.Connection; |
| import java.sql.PreparedStatement; |
| import java.sql.SQLException; |
| import java.util.List; |
| |
| /** |
| * A Batch SQL executor. |
| */ |
| @Slf4j |
| @RequiredArgsConstructor |
| public class BatchSQLExecutor implements InsertRequest, UpdateRequest { |
| |
| private final List<PrepareRequest> prepareRequests; |
| |
| public void invoke(Connection connection, int maxBatchSqlSize) throws SQLException { |
| if (log.isDebugEnabled()) { |
| log.debug("execute sql batch. sql by key size: {}", prepareRequests.size()); |
| } |
| if (prepareRequests.size() == 0) { |
| return; |
| } |
| String sql = prepareRequests.get(0).toString(); |
| try (PreparedStatement preparedStatement = connection.prepareStatement(sql)) { |
| int pendingCount = 0; |
| for (int k = 0; k < prepareRequests.size(); k++) { |
| SQLExecutor sqlExecutor = (SQLExecutor) prepareRequests.get(k); |
| sqlExecutor.setParameters(preparedStatement); |
| preparedStatement.addBatch(); |
| if (k > 0 && k % maxBatchSqlSize == 0) { |
| executeBatch(preparedStatement, maxBatchSqlSize, sql); |
| pendingCount = 0; |
| } else { |
| pendingCount++; |
| } |
| } |
| if (pendingCount > 0) { |
| executeBatch(preparedStatement, pendingCount, sql); |
| } |
| } |
| } |
| |
| private void executeBatch(PreparedStatement preparedStatement, int pendingCount, String sql) throws SQLException { |
| long start = System.currentTimeMillis(); |
| preparedStatement.executeBatch(); |
| if (log.isDebugEnabled()) { |
| long end = System.currentTimeMillis(); |
| long cost = end - start; |
| log.debug("execute batch sql, batch size: {}, cost:{}ms, sql: {}", pendingCount, cost, sql); |
| } |
| } |
| } |