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/*
* SonarQube
* Copyright (C) 2009-2024 SonarSource SA
* mailto:info AT sonarsource DOT com
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
package org.sonar.db;
import java.util.List;
import java.util.Map;
import org.apache.ibatis.executor.BatchResult;
import org.apache.ibatis.executor.keygen.Jdbc3KeyGenerator;
import org.apache.ibatis.executor.keygen.KeyGenerator;
import org.apache.ibatis.mapping.MappedStatement;
import org.apache.ibatis.session.Configuration;
import org.apache.ibatis.session.ResultHandler;
import org.apache.ibatis.session.RowBounds;
import org.apache.ibatis.session.SqlSession;
public class BatchSession extends DbSessionImpl {
public static final int MAX_BATCH_SIZE = 250;
private final int batchSize;
private int count = 0;
public BatchSession(SqlSession session) {
this(session, MAX_BATCH_SIZE);
}
BatchSession(SqlSession session, int batchSize) {
super(session);
this.batchSize = batchSize;
}
@Override
public void select(String statement, Object parameter, ResultHandler handler) {
reset();
super.select(statement, parameter, handler);
}
@Override
public void select(String statement, ResultHandler handler) {
reset();
super.select(statement, handler);
}
@Override
public <T> T selectOne(String statement) {
reset();
return super.selectOne(statement);
}
@Override
public <T> T selectOne(String statement, Object parameter) {
reset();
return super.selectOne(statement, parameter);
}
@Override
public <E> List<E> selectList(String statement) {
reset();
return super.selectList(statement);
}
@Override
public <E> List<E> selectList(String statement, Object parameter) {
reset();
return super.selectList(statement, parameter);
}
@Override
public <E> List<E> selectList(String statement, Object parameter, RowBounds rowBounds) {
reset();
return super.selectList(statement, parameter, rowBounds);
}
@Override
public <K, V> Map<K, V> selectMap(String statement, String mapKey) {
reset();
return super.selectMap(statement, mapKey);
}
@Override
public <K, V> Map<K, V> selectMap(String statement, Object parameter, String mapKey) {
reset();
return super.selectMap(statement, parameter, mapKey);
}
@Override
public <K, V> Map<K, V> selectMap(String statement, Object parameter, String mapKey, RowBounds rowBounds) {
reset();
return super.selectMap(statement, parameter, mapKey, rowBounds);
}
@Override
public void select(String statement, Object parameter, RowBounds rowBounds, ResultHandler handler) {
reset();
super.select(statement, parameter, rowBounds, handler);
}
@Override
public int insert(String statement) {
makeSureGeneratedKeysAreNotUsedInBatchInserts(statement);
increment();
return super.insert(statement);
}
@Override
public int insert(String statement, Object parameter) {
makeSureGeneratedKeysAreNotUsedInBatchInserts(statement);
increment();
return super.insert(statement, parameter);
}
private void makeSureGeneratedKeysAreNotUsedInBatchInserts(String statement) {
Configuration configuration = super.getConfiguration();
if (null != configuration) {
MappedStatement mappedStatement = configuration.getMappedStatement(statement);
if (null != mappedStatement) {
KeyGenerator keyGenerator = mappedStatement.getKeyGenerator();
if (keyGenerator instanceof Jdbc3KeyGenerator) {
throw new IllegalStateException("Batch inserts cannot use generated keys");
}
}
}
}
@Override
public int update(String statement) {
increment();
return super.update(statement);
}
@Override
public int update(String statement, Object parameter) {
increment();
return super.update(statement, parameter);
}
@Override
public int delete(String statement) {
increment();
return super.delete(statement);
}
@Override
public int delete(String statement, Object parameter) {
increment();
return super.delete(statement, parameter);
}
@Override
public void commit() {
super.commit();
reset();
}
@Override
public void commit(boolean force) {
super.commit(force);
reset();
}
@Override
public void rollback() {
super.rollback();
reset();
}
@Override
public void rollback(boolean force) {
super.rollback(force);
reset();
}
@Override
public List<BatchResult> flushStatements() {
List<BatchResult> batchResults = super.flushStatements();
reset();
return batchResults;
}
@Override
public <T> T getMapper(Class<T> type) {
return getConfiguration().getMapper(type, this);
}
private BatchSession increment() {
count += 1;
if (count >= batchSize) {
commit();
}
return this;
}
private void reset() {
count = 0;
}
}
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