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    • org.sagacity.sqltoy.dialect.impl.OpenGaussDialect Maven / Gradle / Ivy

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    package org.sagacity.sqltoy.dialect.impl;

import java.io.Serializable;
import java.sql.Connection;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;

import org.sagacity.sqltoy.SqlToyContext;
import org.sagacity.sqltoy.callback.DecryptHandler;
import org.sagacity.sqltoy.callback.GenerateSavePKStrategy;
import org.sagacity.sqltoy.callback.GenerateSqlHandler;
import org.sagacity.sqltoy.callback.ReflectPropsHandler;
import org.sagacity.sqltoy.callback.UpdateRowHandler;
import org.sagacity.sqltoy.config.model.EntityMeta;
import org.sagacity.sqltoy.config.model.PKStrategy;
import org.sagacity.sqltoy.config.model.SqlToyConfig;
import org.sagacity.sqltoy.config.model.SqlType;
import org.sagacity.sqltoy.dialect.Dialect;
import org.sagacity.sqltoy.dialect.model.SavePKStrategy;
import org.sagacity.sqltoy.dialect.utils.DefaultDialectUtils;
import org.sagacity.sqltoy.dialect.utils.DialectExtUtils;
import org.sagacity.sqltoy.dialect.utils.DialectUtils;
import org.sagacity.sqltoy.dialect.utils.OpenGaussDialectUtils;
import org.sagacity.sqltoy.dialect.utils.PostgreSqlDialectUtils;
import org.sagacity.sqltoy.model.ColumnMeta;
import org.sagacity.sqltoy.model.LockMode;
import org.sagacity.sqltoy.model.QueryExecutor;
import org.sagacity.sqltoy.model.QueryResult;
import org.sagacity.sqltoy.model.StoreResult;
import org.sagacity.sqltoy.model.TableMeta;
import org.sagacity.sqltoy.model.inner.QueryExecutorExtend;
import org.sagacity.sqltoy.utils.SqlUtil;

@SuppressWarnings({ "rawtypes" })
public class OpenGaussDialect implements Dialect {

	/**
	 * 判定为null的函数
	 */
	public static final String NVL_FUNCTION = "NVL";

	@Override
	public boolean isUnique(SqlToyContext sqlToyContext, Serializable entity, String[] paramsNamed, Connection conn,
			final Integer dbType, String tableName) {
		return DialectUtils.isUnique(sqlToyContext, entity, paramsNamed, conn, dbType, tableName,
				(entityMeta, realParamNamed, table, topSize) -> {
					String queryStr = DialectExtUtils.wrapUniqueSql(entityMeta, realParamNamed, dbType, table);
					return queryStr + " limit " + topSize;
				});
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.sagacity.sqltoy.dialect.Dialect#getRandomResult(org.sagacity.sqltoy.
	 * SqlToyContext, org.sagacity.sqltoy.config.model.SqlToyConfig,
	 * org.sagacity.sqltoy.model.QueryExecutor, java.lang.Long, java.lang.Long,
	 * java.sql.Connection)
	 */
	@Override
	public QueryResult getRandomResult(SqlToyContext sqlToyContext, SqlToyConfig sqlToyConfig,
			QueryExecutor queryExecutor, final DecryptHandler decryptHandler, Long totalCount, Long randomCount,
			Connection conn, final Integer dbType, final String dialect, final int fetchSize, final int maxRows)
			throws Exception {
		return PostgreSqlDialectUtils.getRandomResult(sqlToyContext, sqlToyConfig, queryExecutor, decryptHandler,
				totalCount, randomCount, conn, dbType, dialect, fetchSize, maxRows);
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.sagacity.sqltoy.dialect.Dialect#findPageBySql(org.sagacity.sqltoy.
	 * SqlToyContext, org.sagacity.sqltoy.config.model.SqlToyConfig,
	 * org.sagacity.sqltoy.model.QueryExecutor, java.lang.Long, java.lang.Integer,
	 * java.sql.Connection)
	 */
	@Override
	public QueryResult findPageBySql(SqlToyContext sqlToyContext, SqlToyConfig sqlToyConfig,
			QueryExecutor queryExecutor, final DecryptHandler decryptHandler, Long pageNo, Integer pageSize,
			Connection conn, final Integer dbType, final String dialect, final int fetchSize, final int maxRows)
			throws Exception {
		return DefaultDialectUtils.findPageBySql(sqlToyContext, sqlToyConfig, queryExecutor, decryptHandler, pageNo,
				pageSize, conn, dbType, dialect, fetchSize, maxRows);
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.sagacity.sqltoy.dialect.Dialect#findTopBySql(org.sagacity.sqltoy.
	 * SqlToyContext, org.sagacity.sqltoy.config.model.SqlToyConfig,
	 * org.sagacity.sqltoy.model.QueryExecutor, double, java.sql.Connection)
	 */
	@Override
	public QueryResult findTopBySql(SqlToyContext sqlToyContext, SqlToyConfig sqlToyConfig, QueryExecutor queryExecutor,
			final DecryptHandler decryptHandler, Integer topSize, Connection conn, final Integer dbType,
			final String dialect, final int fetchSize, final int maxRows) throws Exception {
		return DefaultDialectUtils.findTopBySql(sqlToyContext, sqlToyConfig, queryExecutor, decryptHandler, topSize,
				conn, dbType, dialect, fetchSize, maxRows);
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.sagacity.sqltoy.dialect.Dialect#findBySql(org.sagacity.sqltoy.
	 * SqlToyContext, org.sagacity.sqltoy.config.model.SqlToyConfig,
	 * java.lang.String, java.lang.Object[],
	 * org.sagacity.sqltoy.callback.RowCallbackHandler, java.sql.Connection)
	 */
	@Override
	public QueryResult findBySql(SqlToyContext sqlToyContext, SqlToyConfig sqlToyConfig, String sql,
			Object[] paramsValue, QueryExecutorExtend queryExecutorExtend, final DecryptHandler decryptHandler,
			final Connection conn, final LockMode lockMode, final Integer dbType, final String dialect,
			final int fetchSize, final int maxRows) throws Exception {
		String realSql = sql.concat(getLockSql(sql, dbType, lockMode));
		return DialectUtils.findBySql(sqlToyContext, sqlToyConfig, realSql, paramsValue, queryExecutorExtend,
				decryptHandler, conn, dbType, 0, fetchSize, maxRows);
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.sagacity.sqltoy.dialect.Dialect#getCountBySql(org.sagacity.sqltoy.
	 * SqlToyContext, java.lang.String, java.lang.Object[], boolean,
	 * java.sql.Connection)
	 */
	@Override
	public Long getCountBySql(SqlToyContext sqlToyContext, final SqlToyConfig sqlToyConfig, String sql,
			Object[] paramsValue, boolean isLastSql, Connection conn, final Integer dbType, final String dialect)
			throws Exception {
		return DialectUtils.getCountBySql(sqlToyContext, sqlToyConfig, sql, paramsValue, isLastSql, conn, dbType);
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.sagacity.sqltoy.dialect.Dialect#load(org.sagacity.sqltoy.
	 * SqlToyContext, java.io.Serializable, java.util.List,
	 * org.sagacity.sqltoy.lock.LockMode, java.sql.Connection)
	 */
	@Override
	public Serializable load(SqlToyContext sqlToyContext, Serializable entity, boolean onlySubTables,
			List cascadeTypes, LockMode lockMode, Connection conn, final Integer dbType, final String dialect,
			final String tableName) throws Exception {
		EntityMeta entityMeta = sqlToyContext.getEntityMeta(entity.getClass());
		// 获取loadsql(loadsql 可以通过@loadSql进行改变，所以需要sqltoyContext重新获取)
		SqlToyConfig sqlToyConfig = sqlToyContext.getSqlToyConfig(entityMeta.getLoadSql(tableName), SqlType.search,
				dialect, null);
		String loadSql = sqlToyConfig.getSql(dialect);
		loadSql = loadSql.concat(getLockSql(loadSql, dbType, lockMode));
		return (Serializable) DialectUtils.load(sqlToyContext, sqlToyConfig, loadSql, entityMeta, entity, onlySubTables,
				cascadeTypes, conn, dbType);
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.sagacity.sqltoy.dialect.Dialect#loadAll(org.sagacity.sqltoy.
	 * SqlToyContext, java.util.List, java.util.List,
	 * org.sagacity.sqltoy.lock.LockMode, java.sql.Connection)
	 */
	@Override
	public List loadAll(SqlToyContext sqlToyContext, List entities, boolean onlySubTables,
			List cascadeTypes, LockMode lockMode, Connection conn, final Integer dbType, final String dialect,
			final String tableName, final int fetchSize, final int maxRows) throws Exception {
		return DialectUtils.loadAll(sqlToyContext, entities, onlySubTables, cascadeTypes, lockMode, conn, dbType,
				tableName, (sql, dbTypeValue, lockedMode) -> {
					return getLockSql(sql, dbTypeValue, lockedMode);
				}, fetchSize, maxRows);
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.sagacity.sqltoy.dialect.Dialect#save(org.sagacity.sqltoy.
	 * SqlToyContext, java.io.Serializable, java.sql.Connection)
	 */
	@Override
	public Object save(SqlToyContext sqlToyContext, Serializable entity, Connection conn, final Integer dbType,
			final String dialect, final String tableName) throws Exception {
		EntityMeta entityMeta = sqlToyContext.getEntityMeta(entity.getClass());
		PKStrategy pkStrategy = OpenGaussDialectUtils.getSavePkStrategy(entityMeta, entity, dbType, conn);
		String sequence = entityMeta.getSequence() + ".nextval";
		boolean isAssignPK = OpenGaussDialectUtils.isAssignPKValue(pkStrategy);
		String insertSql = DialectExtUtils.generateInsertSql(sqlToyContext.getUnifyFieldsHandler(), dbType, entityMeta,
				pkStrategy, NVL_FUNCTION, sequence, isAssignPK, tableName);
		return DialectUtils.save(sqlToyContext, entityMeta, pkStrategy, isAssignPK, insertSql, entity,
				new GenerateSqlHandler() {
					@Override
					public String generateSql(EntityMeta entityMeta, String[] forceUpdateField) {
						PKStrategy pkStrategy = entityMeta.getIdStrategy();
						String sequence = entityMeta.getSequence() + ".nextval";
						return DialectExtUtils.generateInsertSql(sqlToyContext.getUnifyFieldsHandler(), dbType,
								entityMeta, pkStrategy, NVL_FUNCTION, sequence,
								OpenGaussDialectUtils.isAssignPKValue(pkStrategy), null);
					}
				}, new GenerateSavePKStrategy() {
					@Override
					public SavePKStrategy generate(EntityMeta entityMeta) {
						return new SavePKStrategy(entityMeta.getIdStrategy(),
								OpenGaussDialectUtils.isAssignPKValue(entityMeta.getIdStrategy()));
					}
				}, conn, dbType);
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.sagacity.sqltoy.dialect.Dialect#saveAll(org.sagacity.sqltoy.
	 * SqlToyContext, java.util.List,
	 * org.sagacity.sqltoy.callback.ReflectPropsHandler, java.sql.Connection)
	 */
	@Override
	public Long saveAll(SqlToyContext sqlToyContext, List entities, final int batchSize,
			ReflectPropsHandler reflectPropsHandler, Connection conn, final Integer dbType, final String dialect,
			final Boolean autoCommit, final String tableName) throws Exception {
		EntityMeta entityMeta = sqlToyContext.getEntityMeta(entities.get(0).getClass());
		PKStrategy pkStrategy = entityMeta.getIdStrategy();
		String sequence = entityMeta.getSequence() + ".nextval";
		boolean isAssignPK = OpenGaussDialectUtils.isAssignPKValue(pkStrategy);
		String insertSql = DialectExtUtils.generateInsertSql(sqlToyContext.getUnifyFieldsHandler(), dbType, entityMeta,
				pkStrategy, NVL_FUNCTION, sequence, isAssignPK, tableName);
		return DialectUtils.saveAll(sqlToyContext, entityMeta, pkStrategy, isAssignPK, insertSql, entities, batchSize,
				reflectPropsHandler, conn, dbType, autoCommit);
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.sagacity.sqltoy.dialect.Dialect#update(org.sagacity.sqltoy.
	 * SqlToyContext, java.io.Serializable, java.lang.String[], boolean,
	 * java.lang.Class[], java.util.HashMap, java.sql.Connection)
	 */
	@Override
	public Long update(SqlToyContext sqlToyContext, Serializable entity, String[] forceUpdateFields, boolean cascade,
			Class[] forceCascadeClasses, HashMap subTableForceUpdateProps, Connection conn,
			final Integer dbType, final String dialect, final String tableName) throws Exception {
		return DialectUtils.update(sqlToyContext, entity, NVL_FUNCTION, forceUpdateFields, cascade,
				(cascade == false) ? null : new GenerateSqlHandler() {
					@Override
					public String generateSql(EntityMeta entityMeta, String[] forceUpdateFields) {
						PKStrategy pkStrategy = entityMeta.getIdStrategy();
						String sequence = entityMeta.getSequence() + ".nextval";
						boolean isAssignPK = OpenGaussDialectUtils.isAssignPKValue(pkStrategy);
						// update 级联操作过程中会自动判断数据库类型
						return DialectUtils.getSaveOrUpdateSql(sqlToyContext, sqlToyContext.getUnifyFieldsHandler(),
								dbType, entityMeta, pkStrategy, forceUpdateFields, null, NVL_FUNCTION, sequence,
								isAssignPK, null);
					}
				}, forceCascadeClasses, subTableForceUpdateProps, conn, dbType, tableName);
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.sagacity.sqltoy.dialect.Dialect#updateAll(org.sagacity.sqltoy.
	 * SqlToyContext, java.util.List, java.lang.String[],
	 * org.sagacity.sqltoy.callback.ReflectPropsHandler, java.sql.Connection)
	 */
	@Override
	public Long updateAll(SqlToyContext sqlToyContext, List entities, final int batchSize,
			final String[] uniqueFields, String[] forceUpdateFields, ReflectPropsHandler reflectPropsHandler,
			Connection conn, final Integer dbType, final String dialect, final Boolean autoCommit,
			final String tableName) throws Exception {
		return DialectUtils.updateAll(sqlToyContext, entities, batchSize, forceUpdateFields, reflectPropsHandler,
				NVL_FUNCTION, conn, dbType, autoCommit, tableName, false);
	}

	@Override
	public Serializable updateSaveFetch(SqlToyContext sqlToyContext, Serializable entity,
			UpdateRowHandler updateRowHandler, String[] uniqueProps, Connection conn, Integer dbType, String dialect,
			String tableName) throws Exception {
		return DefaultDialectUtils.updateSaveFetch(sqlToyContext, entity, updateRowHandler, uniqueProps, conn, dbType,
				dialect, tableName);
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.sagacity.sqltoy.dialect.Dialect#saveOrUpdate(org.sagacity.sqltoy.
	 * SqlToyContext, java.io.Serializable, java.lang.String[], java.sql.Connection,
	 * java.lang.Boolean)
	 */
	@Override
	public Long saveOrUpdate(SqlToyContext sqlToyContext, Serializable entity, String[] forceUpdateFields,
			Connection conn, final Integer dbType, final String dialect, final Boolean autoCommit,
			final String tableName) throws Exception {
		List entities = new ArrayList();
		entities.add(entity);
		return saveOrUpdateAll(sqlToyContext, entities, sqlToyContext.getBatchSize(), null, forceUpdateFields, conn,
				dbType, dialect, autoCommit, tableName);
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.sagacity.sqltoy.dialect.Dialect#saveOrUpdateAll(org.sagacity.sqltoy.
	 * SqlToyContext, java.util.List,
	 * org.sagacity.sqltoy.callback.ReflectPropsHandler, java.lang.String[],
	 * java.sql.Connection, java.lang.Boolean)
	 */
	@Override
	public Long saveOrUpdateAll(SqlToyContext sqlToyContext, List entities, final int batchSize,
			ReflectPropsHandler reflectPropsHandler, String[] forceUpdateFields, Connection conn, final Integer dbType,
			final String dialect, final Boolean autoCommit, final String tableName) throws Exception {
		EntityMeta entityMeta = sqlToyContext.getEntityMeta(entities.get(0).getClass());
		return DialectUtils.saveOrUpdateAll(sqlToyContext, entities, batchSize, entityMeta, forceUpdateFields,
				new GenerateSqlHandler() {
					@Override
					public String generateSql(EntityMeta entityMeta, String[] forceUpdateFields) {
						PKStrategy pkStrategy = entityMeta.getIdStrategy();
						String sequence = entityMeta.getSequence() + ".nextval";
						boolean isAssignPK = OpenGaussDialectUtils.isAssignPKValue(pkStrategy);
						return DialectUtils.getSaveOrUpdateSql(sqlToyContext, sqlToyContext.getUnifyFieldsHandler(),
								dbType, entityMeta, pkStrategy, forceUpdateFields, null, NVL_FUNCTION, sequence,
								isAssignPK, tableName);
					}
				}, reflectPropsHandler, conn, dbType, autoCommit);
	}

	@Override
	public Long saveAllIgnoreExist(SqlToyContext sqlToyContext, List entities, final int batchSize,
			ReflectPropsHandler reflectPropsHandler, Connection conn, final Integer dbType, final String dialect,
			final Boolean autoCommit, final String tableName) throws Exception {
		EntityMeta entityMeta = sqlToyContext.getEntityMeta(entities.get(0).getClass());
		return DialectUtils.saveAllIgnoreExist(sqlToyContext, entities, batchSize, entityMeta,
				new GenerateSqlHandler() {
					@Override
					public String generateSql(EntityMeta entityMeta, String[] forceUpdateFields) {
						PKStrategy pkStrategy = entityMeta.getIdStrategy();
						String sequence = entityMeta.getSequence() + ".nextval";
						boolean isAssignPK = OpenGaussDialectUtils.isAssignPKValue(pkStrategy);
						return DialectExtUtils.mergeIgnore(sqlToyContext.getUnifyFieldsHandler(), dbType, entityMeta,
								pkStrategy, null, NVL_FUNCTION, sequence, isAssignPK, tableName);
					}
				}, reflectPropsHandler, conn, dbType, autoCommit);
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.sagacity.sqltoy.dialect.Dialect#delete(org.sagacity.sqltoy.
	 * SqlToyContext, java.io.Serializable, java.sql.Connection)
	 */
	@Override
	public Long delete(SqlToyContext sqlToyContext, Serializable entity, Connection conn, final Integer dbType,
			final String dialect, final String tableName) throws Exception {
		return DialectUtils.delete(sqlToyContext, entity, conn, dbType, tableName);
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.sagacity.sqltoy.dialect.Dialect#deleteAll(org.sagacity.sqltoy.
	 * SqlToyContext, java.util.List, java.sql.Connection)
	 */
	@Override
	public Long deleteAll(SqlToyContext sqlToyContext, List entities, final int batchSize, Connection conn,
			final Integer dbType, final String dialect, final Boolean autoCommit, final String tableName)
			throws Exception {
		return DialectUtils.deleteAll(sqlToyContext, entities, batchSize, conn, dbType, autoCommit, tableName);
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.sagacity.sqltoy.dialect.Dialect#updateFetch(org.sagacity.sqltoy.
	 * SqlToyContext, org.sagacity.sqltoy.config.model.SqlToyConfig,
	 * java.lang.String, java.lang.Object[],
	 * org.sagacity.sqltoy.callback.UpdateRowHandler, java.sql.Connection)
	 */
	@Override
	public QueryResult updateFetch(SqlToyContext sqlToyContext, SqlToyConfig sqlToyConfig, String sql,
			Object[] paramValues, UpdateRowHandler updateRowHandler, Connection conn, final Integer dbType,
			final String dialect, final LockMode lockMode, final int fetchSize, final int maxRows) throws Exception {
		String realSql = sql.concat(getLockSql(sql, dbType, (lockMode == null) ? LockMode.UPGRADE : lockMode));
		return DialectUtils.updateFetchBySql(sqlToyContext, sqlToyConfig, realSql, paramValues, updateRowHandler, conn,
				dbType, 0, fetchSize, maxRows);
	}

	@Override
	public StoreResult executeStore(SqlToyContext sqlToyContext, final SqlToyConfig sqlToyConfig, final String sql,
			final Object[] inParamsValue, final Integer[] outParamsType, final boolean moreResult,
			final Connection conn, final Integer dbType, final String dialect, final int fetchSize) throws Exception {
		return DialectUtils.executeStore(sqlToyConfig, sqlToyContext, sql, inParamsValue, outParamsType, moreResult,
				conn, dbType, fetchSize);
	}

	@Override
	public List getTableColumns(String catalog, String schema, String tableName, Connection conn,
			Integer dbType, String dialect) throws Exception {
		// 表名转小写
		return DefaultDialectUtils.getTableColumns(catalog, schema, tableName.toLowerCase(), conn, dbType, dialect);
	}

	@Override
	public List getTables(String catalog, String schema, String tableName, Connection conn, Integer dbType,
			String dialect) throws Exception {
		// 这里tableName不是具体的名字，而是正则表达式,要变小写则(?i)
		return DefaultDialectUtils.getTables(catalog == null ? null : catalog.toLowerCase(),
				schema == null ? null : schema.toLowerCase(), tableName == null ? null : tableName.toLowerCase(), conn,
				dbType, dialect);
	}

	private String getLockSql(String sql, Integer dbType, LockMode lockMode) {
		// 判断是否已经包含for update
		if (lockMode == null || SqlUtil.hasLock(sql, dbType)) {
			return "";
		}
		if (lockMode == LockMode.UPGRADE_NOWAIT) {
			return " for update nowait ";
		}
		if (lockMode == LockMode.UPGRADE_SKIPLOCK) {
			return " for update skip locked";
		}
		return " for update ";
	}
}




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