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public interface IService<T> {
int DEFAULT_BATCH_SIZE = 1000;
@Transactional(
rollbackFor = {Exception.class}
)
default boolean saveBatch(Collection<T> entityList) {
return this.saveBatch(entityList, 1000);
}
boolean saveBatch(Collection<T> entityList, int batchSize);
@Transactional(
rollbackFor = {Exception.class}
)
default boolean saveOrUpdateBatch(Collection<T> entityList) {
return this.saveOrUpdateBatch(entityList, 1000);
}
boolean saveOrUpdateBatch(Collection<T> entityList, int batchSize);
@Transactional(
rollbackFor = {Exception.class}
)
default boolean updateBatchById(Collection<T> entityList) {
return this.updateBatchById(entityList, 1000);
}
boolean updateBatchById(Collection<T> entityList, int batchSize);
}
public class ServiceImpl<M extends BaseMapper<T>, T> implements IService<T> {
@Transactional(
rollbackFor = {Exception.class}
)
public boolean saveBatch(Collection<T> entityList, int batchSize) {
String sqlStatement = this.getSqlStatement(SqlMethod.INSERT_ONE);
return this.executeBatch(entityList, batchSize, (sqlSession, entity) -> {
sqlSession.insert(sqlStatement, entity);
});
}
@Transactional(
rollbackFor = {Exception.class}
)
public boolean saveOrUpdateBatch(Collection<T> entityList, int batchSize) {
TableInfo tableInfo = TableInfoHelper.getTableInfo(this.entityClass);
Assert.notNull(tableInfo, "error: can not execute. because can not find cache of TableInfo for entity!", new Object[0]);
String keyProperty = tableInfo.getKeyProperty();
Assert.notEmpty(keyProperty, "error: can not execute. because can not find column for id from entity!", new Object[0]);
return SqlHelper.saveOrUpdateBatch(this.entityClass, this.mapperClass, this.log, entityList, batchSize, (sqlSession, entity) -> {
Object idVal = ReflectionKit.getFieldValue(entity, keyProperty);
return StringUtils.checkValNull(idVal) || CollectionUtils.isEmpty(sqlSession.selectList(this.getSqlStatement(SqlMethod.SELECT_BY_ID), entity));
}, (sqlSession, entity) -> {
ParamMap<T> param = new ParamMap();
param.put("et", entity);
sqlSession.update(this.getSqlStatement(SqlMethod.UPDATE_BY_ID), param);
});
}
@Transactional(
rollbackFor = {Exception.class}
)
public boolean updateBatchById(Collection<T> entityList, int batchSize) {
String sqlStatement = this.getSqlStatement(SqlMethod.UPDATE_BY_ID);
return this.executeBatch(entityList, batchSize, (sqlSession, entity) -> {
ParamMap<T> param = new ParamMap();
param.put("et", entity);
sqlSession.update(sqlStatement, param);
});
}
@Deprecated
protected boolean executeBatch(Consumer<SqlSession> consumer) {
return SqlHelper.executeBatch(this.entityClass, this.log, consumer);
}
protected <E> boolean executeBatch(Collection<E> list, int batchSize, BiConsumer<SqlSession, E> consumer) {
return SqlHelper.executeBatch(this.entityClass, this.log, list, batchSize, consumer);
}
protected <E> boolean executeBatch(Collection<E> list, BiConsumer<SqlSession, E> consumer) {
return this.executeBatch(list, 1000, consumer);
}
}
public final class SqlHelper {
public static boolean executeBatch(Class<?> entityClass, Log log, Consumer<SqlSession> consumer) {
SqlSessionFactory sqlSessionFactory = sqlSessionFactory(entityClass);
SqlSessionHolder sqlSessionHolder = (SqlSessionHolder)TransactionSynchronizationManager.getResource(sqlSessionFactory);
boolean transaction = TransactionSynchronizationManager.isSynchronizationActive();
SqlSession sqlSession;
if (sqlSessionHolder != null) {
sqlSession = sqlSessionHolder.getSqlSession();
sqlSession.commit(!transaction);
}
sqlSession = sqlSessionFactory.openSession(ExecutorType.BATCH);
if (!transaction) {
log.warn("SqlSession [" + sqlSession + "] was not registered for synchronization because DataSource is not transactional");
}
boolean var7;
try {
consumer.accept(sqlSession);
sqlSession.commit(!transaction);
var7 = true;
} catch (Throwable var13) {
sqlSession.rollback();
Throwable unwrapped = ExceptionUtil.unwrapThrowable(var13);
if (unwrapped instanceof RuntimeException) {
MyBatisExceptionTranslator myBatisExceptionTranslator = new MyBatisExceptionTranslator(sqlSessionFactory.getConfiguration().getEnvironment().getDataSource(), true);
throw (DataAccessException)Objects.requireNonNull(myBatisExceptionTranslator.translateExceptionIfPossible((RuntimeException)unwrapped));
}
throw ExceptionUtils.mpe(unwrapped);
} finally {
sqlSession.close();
}
return var7;
}
public static <E> boolean executeBatch(Class<?> entityClass, Log log, Collection<E> list, int batchSize, BiConsumer<SqlSession, E> consumer) {
Assert.isFalse(batchSize < 1, "batchSize must not be less than one", new Object[0]);
return !CollectionUtils.isEmpty(list) && executeBatch(entityClass, log, (sqlSession) -> {
int size = list.size();
int i = 1;
for(Iterator var6 = list.iterator(); var6.hasNext(); ++i) {
E element = var6.next();
consumer.accept(sqlSession, element);
if (i % batchSize == 0 || i == size) {
sqlSession.flushStatements();
}
}
});
}
}
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