mirror of
https://github.com/alibaba/druid.git
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586 lines
21 KiB
Java
586 lines
21 KiB
Java
/*
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* Copyright 1999-2011 Alibaba Group Holding Ltd.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.alibaba.druid.sql;
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import java.util.ArrayList;
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import java.util.List;
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import com.alibaba.druid.DruidRuntimeException;
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import com.alibaba.druid.sql.ast.SQLExpr;
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import com.alibaba.druid.sql.ast.SQLObject;
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import com.alibaba.druid.sql.ast.SQLStatement;
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import com.alibaba.druid.sql.ast.expr.SQLBinaryOpExpr;
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import com.alibaba.druid.sql.ast.expr.SQLBinaryOperator;
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import com.alibaba.druid.sql.ast.statement.SQLDeleteStatement;
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import com.alibaba.druid.sql.ast.statement.SQLSelectItem;
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import com.alibaba.druid.sql.ast.statement.SQLSelectOrderByItem;
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import com.alibaba.druid.sql.ast.statement.SQLSelectQuery;
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import com.alibaba.druid.sql.ast.statement.SQLSelectQueryBlock;
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import com.alibaba.druid.sql.ast.statement.SQLSelectStatement;
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import com.alibaba.druid.sql.ast.statement.SQLUpdateSetItem;
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import com.alibaba.druid.sql.ast.statement.SQLUpdateStatement;
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import com.alibaba.druid.sql.dialect.db2.visitor.DB2OutputVisitor;
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import com.alibaba.druid.sql.dialect.db2.visitor.DB2SchemaStatVisitor;
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import com.alibaba.druid.sql.dialect.mysql.visitor.MySqlOutputVisitor;
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import com.alibaba.druid.sql.dialect.mysql.visitor.MySqlSchemaStatVisitor;
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import com.alibaba.druid.sql.dialect.odps.visitor.OdpsOutputVisitor;
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import com.alibaba.druid.sql.dialect.oracle.visitor.OracleOutputVisitor;
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import com.alibaba.druid.sql.dialect.oracle.visitor.OracleSchemaStatVisitor;
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import com.alibaba.druid.sql.dialect.oracle.visitor.OracleToMySqlOutputVisitor;
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import com.alibaba.druid.sql.dialect.postgresql.visitor.PGOutputVisitor;
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import com.alibaba.druid.sql.dialect.postgresql.visitor.PGSchemaStatVisitor;
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import com.alibaba.druid.sql.dialect.sqlserver.visitor.SQLServerOutputVisitor;
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import com.alibaba.druid.sql.dialect.sqlserver.visitor.SQLServerSchemaStatVisitor;
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import com.alibaba.druid.sql.parser.ParserException;
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import com.alibaba.druid.sql.parser.SQLExprParser;
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import com.alibaba.druid.sql.parser.SQLParserUtils;
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import com.alibaba.druid.sql.parser.SQLStatementParser;
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import com.alibaba.druid.sql.parser.Token;
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import com.alibaba.druid.sql.visitor.SQLASTOutputVisitor;
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import com.alibaba.druid.sql.visitor.SchemaStatVisitor;
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import com.alibaba.druid.support.logging.Log;
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import com.alibaba.druid.support.logging.LogFactory;
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import com.alibaba.druid.util.JdbcConstants;
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import com.alibaba.druid.util.JdbcUtils;
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import com.alibaba.druid.util.StringUtils;
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public class SQLUtils {
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private final static Log LOG = LogFactory.getLog(SQLUtils.class);
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public static String toSQLString(SQLObject sqlObject, String dbType) {
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if (JdbcUtils.MYSQL.equals(dbType) || //
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JdbcUtils.MARIADB.equals(dbType) || //
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JdbcUtils.H2.equals(dbType)) {
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return toMySqlString(sqlObject);
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}
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if (JdbcUtils.ORACLE.equals(dbType) || JdbcUtils.ALI_ORACLE.equals(dbType)) {
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return toOracleString(sqlObject);
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}
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if (JdbcUtils.POSTGRESQL.equals(dbType)) {
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return toPGString(sqlObject);
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}
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if (JdbcUtils.DB2.equals(dbType)) {
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return toDB2String(sqlObject);
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}
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if (JdbcUtils.ODPS.equals(dbType)) {
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return toOdpsString(sqlObject);
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}
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return toSQLServerString(sqlObject);
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}
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public static String toSQLString(SQLObject sqlObject) {
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StringBuilder out = new StringBuilder();
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sqlObject.accept(new SQLASTOutputVisitor(out));
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String sql = out.toString();
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return sql;
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}
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public static String toOdpsString(SQLObject sqlObject) {
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StringBuilder out = new StringBuilder();
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sqlObject.accept(new OdpsOutputVisitor(out));
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String sql = out.toString();
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return sql;
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}
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public static String toMySqlString(SQLObject sqlObject) {
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StringBuilder out = new StringBuilder();
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sqlObject.accept(new MySqlOutputVisitor(out));
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String sql = out.toString();
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return sql;
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}
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public static SQLExpr toMySqlExpr(String sql) {
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return toSQLExpr(sql, JdbcUtils.MYSQL);
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}
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public static String formatMySql(String sql) {
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return format(sql, JdbcUtils.MYSQL);
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}
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public static String formatOracle(String sql) {
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return format(sql, JdbcUtils.ORACLE);
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}
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public static String formatOdps(String sql) {
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return format(sql, JdbcUtils.ODPS);
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}
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public static String formatSQLServer(String sql) {
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return format(sql, JdbcUtils.SQL_SERVER);
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}
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public static String toOracleString(SQLObject sqlObject) {
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StringBuilder out = new StringBuilder();
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sqlObject.accept(new OracleOutputVisitor(out, false));
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String sql = out.toString();
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return sql;
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}
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public static String toPGString(SQLObject sqlObject) {
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StringBuilder out = new StringBuilder();
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sqlObject.accept(new PGOutputVisitor(out));
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String sql = out.toString();
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return sql;
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}
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public static String toDB2String(SQLObject sqlObject) {
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StringBuilder out = new StringBuilder();
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sqlObject.accept(new DB2OutputVisitor(out));
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String sql = out.toString();
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return sql;
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}
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public static String toSQLServerString(SQLObject sqlObject) {
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StringBuilder out = new StringBuilder();
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sqlObject.accept(new SQLServerOutputVisitor(out));
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String sql = out.toString();
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return sql;
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}
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public static String formatPGSql(String sql) {
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return format(sql, JdbcUtils.POSTGRESQL);
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}
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public static SQLExpr toSQLExpr(String sql, String dbType) {
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SQLExprParser parser = SQLParserUtils.createExprParser(sql, dbType);
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SQLExpr expr = parser.expr();
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if (parser.getLexer().token() != Token.EOF) {
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throw new ParserException("illegal sql expr : " + sql);
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}
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return expr;
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}
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public static SQLSelectOrderByItem toOrderByItem(String sql, String dbType) {
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SQLExprParser parser = SQLParserUtils.createExprParser(sql, dbType);
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SQLSelectOrderByItem orderByItem = parser.parseSelectOrderByItem();
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if (parser.getLexer().token() != Token.EOF) {
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throw new ParserException("illegal sql expr : " + sql);
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}
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return orderByItem;
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}
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public static SQLUpdateSetItem toUpdateSetItem(String sql, String dbType) {
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SQLExprParser parser = SQLParserUtils.createExprParser(sql, dbType);
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SQLUpdateSetItem updateSetItem = parser.parseUpdateSetItem();
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if (parser.getLexer().token() != Token.EOF) {
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throw new ParserException("illegal sql expr : " + sql);
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}
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return updateSetItem;
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}
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public static SQLSelectItem toSelectItem(String sql, String dbType) {
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SQLExprParser parser = SQLParserUtils.createExprParser(sql, dbType);
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SQLSelectItem selectItem = parser.parseSelectItem();
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if (parser.getLexer().token() != Token.EOF) {
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throw new ParserException("illegal sql expr : " + sql);
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}
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return selectItem;
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}
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public static List<SQLStatement> toStatementList(String sql, String dbType) {
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SQLStatementParser parser = SQLParserUtils.createSQLStatementParser(sql, dbType);
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return parser.parseStatementList();
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}
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public static SQLExpr toSQLExpr(String sql) {
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return toSQLExpr(sql, null);
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}
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public static String format(String sql, String dbType) {
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return format(sql, dbType, null);
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}
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public static String format(String sql, String dbType, List<Object> parameters) {
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try {
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SQLStatementParser parser = SQLParserUtils.createSQLStatementParser(sql, dbType);
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parser.setKeepComments(true);
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List<SQLStatement> statementList = parser.parseStatementList();
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return toSQLString(statementList, dbType, parameters);
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} catch (ParserException ex) {
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LOG.warn("format error", ex);
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return sql;
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}
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}
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public static String toSQLString(List<SQLStatement> statementList, String dbType) {
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return toSQLString(statementList, dbType, null);
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}
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public static String toSQLString(List<SQLStatement> statementList, String dbType, List<Object> parameters) {
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StringBuilder out = new StringBuilder();
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SQLASTOutputVisitor visitor = createFormatOutputVisitor(out, statementList, dbType);
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if (parameters != null) {
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visitor.setParameters(parameters);
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}
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for (int i = 0; i < statementList.size(); i++) {
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SQLStatement stmt = statementList.get(i);
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if (i > 0) {
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visitor.print(";");
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SQLStatement preStmt = statementList.get(i - 1);
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List<String> comments = preStmt.getAfterCommentsDirect();
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if (comments != null){
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for (int j = 0; j < comments.size(); ++j) {
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String comment = comments.get(j);
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if (j != 0) {
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visitor.println();
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}
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visitor.print(comment);
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}
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}
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visitor.println();
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}
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{
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List<String> comments = stmt.getBeforeCommentsDirect();
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if (comments != null){
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for(String comment : comments) {
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visitor.println(comment);
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}
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}
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}
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stmt.accept(visitor);
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if (i == statementList.size() - 1) {
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Boolean semi = (Boolean) stmt.getAttribute("format.semi");
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if (semi != null && semi.booleanValue()) {
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// if (stmt.hasAfterComment()) {
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// visitor.println();
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// }
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visitor.print(";");
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}
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List<String> comments = stmt.getAfterCommentsDirect();
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if (comments != null){
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for (int j = 0; j < comments.size(); ++j) {
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String comment = comments.get(j);
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if (j != 0) {
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visitor.println();
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}
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visitor.print(comment);
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}
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}
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}
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}
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return out.toString();
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}
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public static SQLASTOutputVisitor createFormatOutputVisitor(Appendable out, List<SQLStatement> statementList,
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String dbType) {
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if (JdbcUtils.ORACLE.equals(dbType) || JdbcUtils.ALI_ORACLE.equals(dbType)) {
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if (statementList.size() == 1) {
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return new OracleOutputVisitor(out, false);
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} else {
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return new OracleOutputVisitor(out, true);
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}
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}
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if (JdbcUtils.MYSQL.equals(dbType) || //
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JdbcUtils.MARIADB.equals(dbType) || //
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JdbcUtils.H2.equals(dbType)) {
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return new MySqlOutputVisitor(out);
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}
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if (JdbcUtils.POSTGRESQL.equals(dbType)) {
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return new PGOutputVisitor(out);
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}
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if (JdbcUtils.SQL_SERVER.equals(dbType) || JdbcUtils.JTDS.equals(dbType)) {
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return new SQLServerOutputVisitor(out);
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}
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if (JdbcUtils.DB2.equals(dbType)) {
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return new DB2OutputVisitor(out);
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}
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if (JdbcUtils.ODPS.equals(dbType)) {
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return new OdpsOutputVisitor(out);
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}
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return new SQLASTOutputVisitor(out);
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}
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@Deprecated
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public static SchemaStatVisitor createSchemaStatVisitor(List<SQLStatement> statementList, String dbType) {
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return createSchemaStatVisitor(dbType);
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}
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public static SchemaStatVisitor createSchemaStatVisitor(String dbType) {
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if (JdbcUtils.ORACLE.equals(dbType) || JdbcUtils.ALI_ORACLE.equals(dbType)) {
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return new OracleSchemaStatVisitor();
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}
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if (JdbcUtils.MYSQL.equals(dbType) || //
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JdbcUtils.MARIADB.equals(dbType) || //
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JdbcUtils.H2.equals(dbType)) {
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return new MySqlSchemaStatVisitor();
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}
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if (JdbcUtils.POSTGRESQL.equals(dbType)) {
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return new PGSchemaStatVisitor();
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}
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if (JdbcUtils.SQL_SERVER.equals(dbType) || JdbcUtils.JTDS.equals(dbType)) {
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return new SQLServerSchemaStatVisitor();
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}
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if (JdbcUtils.DB2.equals(dbType)) {
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return new DB2SchemaStatVisitor();
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}
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return new SchemaStatVisitor();
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}
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public static List<SQLStatement> parseStatements(String sql, String dbType) {
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SQLStatementParser parser = SQLParserUtils.createSQLStatementParser(sql, dbType);
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List<SQLStatement> stmtList = parser.parseStatementList();
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if (parser.getLexer().token() != Token.EOF) {
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throw new DruidRuntimeException("syntax error : " + sql);
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}
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return stmtList;
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}
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/**
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* @author owenludong.lud
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* @param columnName
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* @param tableAlias
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* @param pattern if pattern is null,it will be set {%Y-%m-%d %H:%i:%s} as mysql default value and set {yyyy-mm-dd
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* hh24:mi:ss} as oracle default value
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* @param dbType {@link JdbcConstants} if dbType is null ,it will be set the mysql as a default value
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*/
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public static String buildToDate(String columnName, String tableAlias, String pattern, String dbType) {
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StringBuilder sql = new StringBuilder();
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if (StringUtils.isEmpty(columnName)) return "";
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if (StringUtils.isEmpty(dbType)) dbType = JdbcConstants.MYSQL;
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String formatMethod = "";
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if (JdbcConstants.MYSQL.equalsIgnoreCase(dbType)) {
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formatMethod = "STR_TO_DATE";
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if (StringUtils.isEmpty(pattern)) pattern = "%Y-%m-%d %H:%i:%s";
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} else if (JdbcConstants.ORACLE.equalsIgnoreCase(dbType)) {
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formatMethod = "TO_DATE";
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if (StringUtils.isEmpty(pattern)) pattern = "yyyy-mm-dd hh24:mi:ss";
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} else {
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return "";
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// expand date's handle method for other database
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}
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sql.append(formatMethod).append("(");
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if (!StringUtils.isEmpty(tableAlias)) sql.append(tableAlias).append(".");
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sql.append(columnName).append(",");
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sql.append("'");
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sql.append(pattern);
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sql.append("')");
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return sql.toString();
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}
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public static List<SQLExpr> split(SQLBinaryOpExpr x) {
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List<SQLExpr> groupList = new ArrayList<SQLExpr>();
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groupList.add(x.getRight());
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SQLExpr left = x.getLeft();
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for (;;) {
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if (left instanceof SQLBinaryOpExpr && ((SQLBinaryOpExpr) left).getOperator() == x.getOperator()) {
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SQLBinaryOpExpr binaryLeft = (SQLBinaryOpExpr) left;
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groupList.add(binaryLeft.getRight());
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left = binaryLeft.getLeft();
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} else {
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groupList.add(left);
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break;
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}
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}
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return groupList;
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}
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public static String translateOracleToMySql(String sql) {
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List<SQLStatement> stmtList = toStatementList(sql, JdbcConstants.ORACLE);
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StringBuilder out = new StringBuilder();
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OracleToMySqlOutputVisitor visitor = new OracleToMySqlOutputVisitor(out, false);
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for (int i = 0; i < stmtList.size(); ++i) {
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stmtList.get(i).accept(visitor);
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}
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String mysqlSql = out.toString();
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return mysqlSql;
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}
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public static String addCondition(String sql, String condition, String dbType) {
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String result = addCondition(sql, condition, SQLBinaryOperator.BooleanAnd, false, dbType);
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return result;
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}
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public static String addCondition(String sql, String condition, SQLBinaryOperator op, boolean left, String dbType) {
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if (sql == null) {
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throw new IllegalArgumentException("sql is null");
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}
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if (condition == null) {
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return sql;
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}
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if (op == null) {
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op = SQLBinaryOperator.BooleanAnd;
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}
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if (op != SQLBinaryOperator.BooleanAnd //
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&& op != SQLBinaryOperator.BooleanOr) {
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throw new IllegalArgumentException("add condition not support : " + op);
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}
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List<SQLStatement> stmtList = parseStatements(sql, dbType);
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if (stmtList.size() == 0) {
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throw new IllegalArgumentException("not support empty-statement :" + sql);
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}
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if (stmtList.size() > 1) {
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throw new IllegalArgumentException("not support multi-statement :" + sql);
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}
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SQLStatement stmt = stmtList.get(0);
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SQLExpr conditionExpr = toSQLExpr(condition, dbType);
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addCondition(stmt, op, conditionExpr, left);
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return toSQLString(stmt, dbType);
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}
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public static void addCondition(SQLStatement stmt, SQLBinaryOperator op, SQLExpr condition, boolean left) {
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if (stmt instanceof SQLSelectStatement) {
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SQLSelectQuery query = ((SQLSelectStatement) stmt).getSelect().getQuery();
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if (query instanceof SQLSelectQueryBlock) {
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SQLSelectQueryBlock queryBlock = (SQLSelectQueryBlock) query;
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SQLExpr newCondition = buildCondition(op, condition, left, queryBlock.getWhere());
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queryBlock.setWhere(newCondition);
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} else {
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throw new IllegalArgumentException("add condition not support " + stmt.getClass().getName());
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}
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return;
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}
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if (stmt instanceof SQLDeleteStatement) {
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SQLDeleteStatement delete = (SQLDeleteStatement) stmt;
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SQLExpr newCondition = buildCondition(op, condition, left, delete.getWhere());
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delete.setWhere(newCondition);
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|
return;
|
|
}
|
|
|
|
if (stmt instanceof SQLUpdateStatement) {
|
|
SQLUpdateStatement update = (SQLUpdateStatement) stmt;
|
|
|
|
SQLExpr newCondition = buildCondition(op, condition, left, update.getWhere());
|
|
update.setWhere(newCondition);
|
|
|
|
return;
|
|
}
|
|
|
|
throw new IllegalArgumentException("add condition not support " + stmt.getClass().getName());
|
|
}
|
|
|
|
public static SQLExpr buildCondition(SQLBinaryOperator op, SQLExpr condition, boolean left, SQLExpr where) {
|
|
if (where == null) {
|
|
return condition;
|
|
}
|
|
|
|
SQLBinaryOpExpr newCondition;
|
|
if (left) {
|
|
newCondition = new SQLBinaryOpExpr(condition, op, where);
|
|
} else {
|
|
newCondition = new SQLBinaryOpExpr(where, op, condition);
|
|
}
|
|
return newCondition;
|
|
}
|
|
|
|
public static String addSelectItem(String selectSql, String expr, String alias, String dbType) {
|
|
return addSelectItem(selectSql, expr, alias, false, dbType);
|
|
}
|
|
|
|
public static String addSelectItem(String selectSql, String expr, String alias, boolean first, String dbType) {
|
|
List<SQLStatement> stmtList = parseStatements(selectSql, dbType);
|
|
|
|
if (stmtList.size() == 0) {
|
|
throw new IllegalArgumentException("not support empty-statement :" + selectSql);
|
|
}
|
|
|
|
if (stmtList.size() > 1) {
|
|
throw new IllegalArgumentException("not support multi-statement :" + selectSql);
|
|
}
|
|
|
|
SQLStatement stmt = stmtList.get(0);
|
|
|
|
SQLExpr columnExpr = toSQLExpr(expr, dbType);
|
|
|
|
addSelectItem(stmt, columnExpr, alias, first);
|
|
|
|
return toSQLString(stmt, dbType);
|
|
}
|
|
|
|
public static void addSelectItem(SQLStatement stmt, SQLExpr expr, String alias, boolean first) {
|
|
if (expr == null) {
|
|
return;
|
|
}
|
|
|
|
if (stmt instanceof SQLSelectStatement) {
|
|
SQLSelectQuery query = ((SQLSelectStatement) stmt).getSelect().getQuery();
|
|
if (query instanceof SQLSelectQueryBlock) {
|
|
SQLSelectQueryBlock queryBlock = (SQLSelectQueryBlock) query;
|
|
addSelectItem(queryBlock, expr, alias, first);
|
|
} else {
|
|
throw new IllegalArgumentException("add condition not support " + stmt.getClass().getName());
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
throw new IllegalArgumentException("add selectItem not support " + stmt.getClass().getName());
|
|
}
|
|
|
|
public static void addSelectItem(SQLSelectQueryBlock queryBlock, SQLExpr expr, String alias, boolean first) {
|
|
SQLSelectItem selectItem = new SQLSelectItem(expr, alias);
|
|
queryBlock.getSelectList().add(selectItem);
|
|
selectItem.setParent(selectItem);
|
|
}
|
|
}
|