/*
* Copyright 1999-2011 Alibaba Group Holding Ltd.
*
* Licensed 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 com.alibaba.druid.sql.dialect.mysql.parser;
import java.util.List;
import com.alibaba.druid.sql.ast.SQLExpr;
import com.alibaba.druid.sql.ast.SQLName;
import com.alibaba.druid.sql.ast.SQLOrderBy;
import com.alibaba.druid.sql.ast.SQLStatement;
import com.alibaba.druid.sql.ast.expr.SQLCharExpr;
import com.alibaba.druid.sql.ast.expr.SQLIdentifierExpr;
import com.alibaba.druid.sql.ast.expr.SQLLiteralExpr;
import com.alibaba.druid.sql.ast.expr.SQLQueryExpr;
import com.alibaba.druid.sql.ast.statement.SQLCreateTableStatement;
import com.alibaba.druid.sql.ast.statement.SQLDropTableStatement;
import com.alibaba.druid.sql.ast.statement.SQLInsertStatement;
import com.alibaba.druid.sql.ast.statement.SQLSelectStatement;
import com.alibaba.druid.sql.ast.statement.SQLTableSource;
import com.alibaba.druid.sql.ast.statement.SQLUpdateSetItem;
import com.alibaba.druid.sql.dialect.mysql.ast.statement.CobarShowStatus;
import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlBinlogStatement;
import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlCommitStatement;
import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlCreateUserStatement;
import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlDeleteStatement;
import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlDescribeStatement;
import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlDropTableStatement;
import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlDropUser;
import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlExecuteStatement;
import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlInsertStatement;
import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlKillStatement;
import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlLoadDataInFileStatement;
import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlLoadXmlStatement;
import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlPrepareStatement;
import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlReplicateStatement;
import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlResetStatement;
import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlRollbackStatement;
import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlSelectQueryBlock;
import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowColumnsStatement;
import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowDatabasesStatement;
import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowStatusStatement;
import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowTablesStatement;
import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlShowWarningsStatement;
import com.alibaba.druid.sql.dialect.mysql.ast.statement.MySqlStartTransactionStatement;
import com.alibaba.druid.sql.parser.Lexer;
import com.alibaba.druid.sql.parser.ParserException;
import com.alibaba.druid.sql.parser.SQLSelectParser;
import com.alibaba.druid.sql.parser.SQLStatementParser;
import com.alibaba.druid.sql.parser.Token;
public class MySqlStatementParser extends SQLStatementParser {
public MySqlStatementParser(String sql) throws ParserException{
this(new MySqlLexer(sql));
this.lexer.nextToken();
this.exprParser = new MySqlExprParser(lexer);
}
public MySqlStatementParser(Lexer lexer){
super(lexer);
this.exprParser = new MySqlExprParser(lexer);
}
public SQLCreateTableStatement parseCreateTable() throws ParserException {
MySqlCreateTableParser parser = new MySqlCreateTableParser(lexer);
return parser.parseCrateTable();
}
public SQLSelectStatement parseSelect() throws ParserException {
return new SQLSelectStatement(new MySqlSelectParser(lexer).select());
}
public MySqlDeleteStatement parseDeleteStatement() throws ParserException {
MySqlDeleteStatement deleteStatement = new MySqlDeleteStatement();
if (lexer.token() == Token.DELETE) {
lexer.nextToken();
if (identifierEquals("LOW_PRIORITY")) {
deleteStatement.setLowPriority(true);
lexer.nextToken();
}
if (identifierEquals("QUICK")) {
deleteStatement.setQuick(true);
lexer.nextToken();
}
if (identifierEquals("IGNORE")) {
deleteStatement.setIgnore(true);
lexer.nextToken();
}
if (lexer.token() == Token.IDENTIFIER) {
deleteStatement.setTableSource(createSQLSelectParser().parseTableSource());
if (lexer.token() == Token.FROM) {
lexer.nextToken();
SQLTableSource tableSource = createSQLSelectParser().parseTableSource();
deleteStatement.setFrom(tableSource);
}
} else {
if (lexer.token() == Token.FROM) {
lexer.nextToken();
deleteStatement.setTableSource(createSQLSelectParser().parseTableSource());
}
}
if (identifierEquals("USING")) {
lexer.nextToken();
SQLTableSource tableSource = createSQLSelectParser().parseTableSource();
deleteStatement.setUsing(tableSource);
}
}
if (lexer.token() == (Token.WHERE)) {
lexer.nextToken();
SQLExpr where = this.exprParser.expr();
deleteStatement.setWhere(where);
}
if (lexer.token() == (Token.ORDER)) {
SQLOrderBy orderBy = exprParser.parseOrderBy();
deleteStatement.setOrderBy(orderBy);
}
if (lexer.token() == Token.LIMIT) {
lexer.nextToken();
MySqlSelectQueryBlock.Limit limit = new MySqlSelectQueryBlock.Limit();
SQLExpr rowCount = exprParser.expr();
limit.setRowCount(rowCount);
deleteStatement.setLimit(limit);
}
return deleteStatement;
}
public SQLStatement parseCreate() throws ParserException {
accept(Token.CREATE);
if (lexer.token() == Token.TABLE || identifierEquals("TEMPORARY")) {
MySqlCreateTableParser parser = new MySqlCreateTableParser(lexer);
return parser.parseCrateTable(false);
}
if (lexer.token() == Token.USER) {
return parseCreateUser();
}
throw new ParserException("TODO " + lexer.token());
}
public SQLStatement parseCreateUser() throws ParserException {
accept(Token.USER);
MySqlCreateUserStatement stmt = new MySqlCreateUserStatement();
for (;;) {
MySqlCreateUserStatement.UserSpecification userSpec = new MySqlCreateUserStatement.UserSpecification();
SQLCharExpr expr = (SQLCharExpr) exprParser.expr();
String user = expr.toString();
if (lexer.token() == Token.VARIANT) {
lexer.nextToken();
SQLCharExpr expr2 = (SQLCharExpr) exprParser.expr();
user += '@';
user += expr2.toString();
}
userSpec.setUser(new SQLIdentifierExpr(user));
if (lexer.token() == Token.IDENTIFIED) {
lexer.nextToken();
if (lexer.token() == Token.BY) {
lexer.nextToken();
if (lexer.token() == Token.PASSWORD) {
lexer.nextToken();
}
SQLCharExpr password = (SQLCharExpr) this.exprParser.expr();
userSpec.setPassword(password);
} else if (lexer.token() == Token.WITH) {
lexer.nextToken();
SQLCharExpr text = (SQLCharExpr) this.exprParser.expr();
userSpec.setAuthPlugin(text);
}
}
stmt.getUsers().add(userSpec);
if (lexer.token() == Token.COMMA) {
lexer.nextToken();
continue;
}
break;
}
return stmt;
}
public SQLStatement parseKill() {
accept(Token.KILL);
MySqlKillStatement stmt = new MySqlKillStatement();
if (identifierEquals("CONNECTION")) {
stmt.setType(MySqlKillStatement.Type.CONNECTION);
lexer.nextToken();
} else if (identifierEquals("QUERY")) {
stmt.setType(MySqlKillStatement.Type.QUERY);
lexer.nextToken();
} else {
throw new ParserException("not support kill type " + lexer.token());
}
SQLExpr threadId = this.exprParser.expr();
stmt.setThreadId(threadId);
return stmt;
}
public SQLStatement parseBinlog() {
acceptIdentifier("binlog");
MySqlBinlogStatement stmt = new MySqlBinlogStatement();
SQLExpr expr = this.exprParser.expr();
stmt.setExpr(expr);
return stmt;
}
public SQLStatement parseReset() {
acceptIdentifier("RESET");
MySqlResetStatement stmt = new MySqlResetStatement();
for (;;) {
if (lexer.token() == Token.IDENTIFIER) {
if (identifierEquals("QUERY")) {
lexer.nextToken();
acceptIdentifier("CACHE");
stmt.getOptions().add("QUERY CACHE");
} else {
stmt.getOptions().add(lexer.stringVal());
lexer.nextToken();
}
if (lexer.token() == Token.COMMA) {
lexer.nextToken();
continue;
}
}
break;
}
return stmt;
}
public boolean parseStatementListDialect(List<SQLStatement> statementList) {
if (lexer.token() == Token.KILL) {
SQLStatement stmt = parseKill();
statementList.add(stmt);
return true;
}
if (identifierEquals("PREPARE")) {
MySqlPrepareStatement stmt = parsePrepare();
statementList.add(stmt);
return true;
}
if (identifierEquals("EXECUTE")) {
MySqlExecuteStatement stmt = parseExecute();
statementList.add(stmt);
return true;
}
if (identifierEquals("LOAD")) {
SQLStatement stmt = parseLoad();
statementList.add(stmt);
return true;
}
if (identifierEquals("REPLACE")) {
MySqlReplicateStatement stmt = parseReplicate();
statementList.add(stmt);
return true;
}
if (identifierEquals("START")) {
MySqlStartTransactionStatement stmt = parseStart();
statementList.add(stmt);
return true;
}
if (identifierEquals("COMMIT")) {
MySqlCommitStatement stmt = parseCommit();
statementList.add(stmt);
return true;
}
if (identifierEquals("ROLLBACK")) {
MySqlRollbackStatement stmt = parseRollback();
statementList.add(stmt);
return true;
}
if (identifierEquals("SHOW")) {
SQLStatement stmt = parseShow();
statementList.add(stmt);
return true;
}
if (identifierEquals("BINLOG")) {
SQLStatement stmt = parseBinlog();
statementList.add(stmt);
return true;
}
if (identifierEquals("RESET")) {
SQLStatement stmt = parseReset();
statementList.add(stmt);
return true;
}
if (identifierEquals("DESCRIBE")) {
SQLStatement stmt = parseDescribe();
statementList.add(stmt);
return true;
}
return false;
}
public SQLStatement parseDescribe() throws ParserException {
acceptIdentifier("DESCRIBE");
MySqlDescribeStatement stmt = new MySqlDescribeStatement();
stmt.setObject(this.exprParser.name());
return stmt;
}
public SQLStatement parseShow() throws ParserException {
acceptIdentifier("SHOW");
if (identifierEquals("FULL")) {
lexer.nextToken();
acceptIdentifier("COLUMNS");
MySqlShowColumnsStatement stmt = parseShowColumns();
stmt.setFull(true);
return stmt;
}
if (identifierEquals("COLUMNS")) {
lexer.nextToken();
MySqlShowColumnsStatement stmt = parseShowColumns();
return stmt;
}
if (identifierEquals("TABLES")) {
lexer.nextToken();
MySqlShowTablesStatement stmt = parseShowTabless();
return stmt;
}
if (identifierEquals("DATABASES")) {
lexer.nextToken();
MySqlShowDatabasesStatement stmt = parseShowDatabases();
return stmt;
}
if (identifierEquals("WARNINGS")) {
lexer.nextToken();
MySqlShowWarningsStatement stmt = parseShowWarnings();
return stmt;
}
if (identifierEquals("COUNT")) {
lexer.nextToken();
accept(Token.LPAREN);
accept(Token.STAR);
accept(Token.RPAREN);
acceptIdentifier("WARNINGS");
MySqlShowWarningsStatement stmt = new MySqlShowWarningsStatement();
stmt.setCount(true);
return stmt;
}
if (identifierEquals("STATUS")) {
lexer.nextToken();
MySqlShowStatusStatement stmt = parseShowStatus();
return stmt;
}
if (identifierEquals("GLOBAL")) {
lexer.nextToken();
if (identifierEquals("STATUS")) {
lexer.nextToken();
MySqlShowStatusStatement stmt = parseShowStatus();
stmt.setGlobal(true);
return stmt;
}
}
if (identifierEquals("SESSION")) {
lexer.nextToken();
if (identifierEquals("STATUS")) {
lexer.nextToken();
MySqlShowStatusStatement stmt = parseShowStatus();
stmt.setSession(true);
return stmt;
}
}
if (identifierEquals("COBAR_STATUS")) {
lexer.nextToken();
return new CobarShowStatus();
}
throw new ParserException("TODO");
}
private MySqlShowStatusStatement parseShowStatus() throws ParserException {
MySqlShowStatusStatement stmt = new MySqlShowStatusStatement();
if (lexer.token() == Token.LIKE) {
lexer.nextToken();
SQLExpr like = exprParser.expr();
stmt.setLike(like);
}
if (lexer.token() == Token.WHERE) {
lexer.nextToken();
SQLExpr where = exprParser.expr();
stmt.setWhere(where);
}
return stmt;
}
private MySqlShowWarningsStatement parseShowWarnings() throws ParserException {
MySqlShowWarningsStatement stmt = new MySqlShowWarningsStatement();
if (lexer.token() == Token.LIMIT) {
lexer.nextToken();
MySqlSelectQueryBlock.Limit limit = new MySqlSelectQueryBlock.Limit();
SQLExpr temp = this.exprParser.expr();
if (lexer.token() == (Token.COMMA)) {
limit.setOffset(temp);
lexer.nextToken();
limit.setRowCount(exprParser.expr());
} else if (identifierEquals("OFFSET")) {
limit.setRowCount(temp);
lexer.nextToken();
limit.setOffset(exprParser.expr());
} else {
limit.setRowCount(temp);
}
stmt.setLimit(limit);
}
return stmt;
}
private MySqlShowDatabasesStatement parseShowDatabases() throws ParserException {
MySqlShowDatabasesStatement stmt = new MySqlShowDatabasesStatement();
if (lexer.token() == Token.LIKE) {
lexer.nextToken();
SQLExpr like = exprParser.expr();
stmt.setLike(like);
}
if (lexer.token() == Token.WHERE) {
lexer.nextToken();
SQLExpr where = exprParser.expr();
stmt.setWhere(where);
}
return stmt;
}
private MySqlShowTablesStatement parseShowTabless() throws ParserException {
MySqlShowTablesStatement stmt = new MySqlShowTablesStatement();
if (lexer.token() == Token.FROM) {
lexer.nextToken();
SQLName database = exprParser.name();
stmt.setDatabase(database);
}
if (lexer.token() == Token.LIKE) {
lexer.nextToken();
SQLExpr like = exprParser.expr();
stmt.setLike(like);
}
if (lexer.token() == Token.WHERE) {
lexer.nextToken();
SQLExpr where = exprParser.expr();
stmt.setWhere(where);
}
return stmt;
}
private MySqlShowColumnsStatement parseShowColumns() throws ParserException {
MySqlShowColumnsStatement stmt = new MySqlShowColumnsStatement();
if (lexer.token() == Token.FROM) {
lexer.nextToken();
SQLName table = exprParser.name();
stmt.setTable(table);
if (lexer.token() == Token.FROM) {
lexer.nextToken();
SQLName database = exprParser.name();
stmt.setDatabase(database);
}
}
if (lexer.token() == Token.LIKE) {
lexer.nextToken();
SQLExpr like = exprParser.expr();
stmt.setLike(like);
}
if (lexer.token() == Token.WHERE) {
lexer.nextToken();
SQLExpr where = exprParser.expr();
stmt.setWhere(where);
}
return stmt;
}
public MySqlStartTransactionStatement parseStart() throws ParserException {
acceptIdentifier("START");
acceptIdentifier("TRANSACTION");
MySqlStartTransactionStatement stmt = new MySqlStartTransactionStatement();
if (identifierEquals("WITH")) {
lexer.nextToken();
acceptIdentifier("CONSISTENT");
acceptIdentifier("SNAPSHOT");
stmt.setConsistentSnapshot(true);
}
if (identifierEquals("BEGIN")) {
lexer.nextToken();
stmt.setBegin(true);
if (identifierEquals("WORK")) {
lexer.nextToken();
stmt.setWork(true);
}
}
return stmt;
}
public MySqlRollbackStatement parseRollback() throws ParserException {
acceptIdentifier("ROLLBACK");
MySqlRollbackStatement stmt = new MySqlRollbackStatement();
if (identifierEquals("WORK")) {
lexer.nextToken();
stmt.setWork(true);
}
if (lexer.token() == Token.AND) {
lexer.nextToken();
if (lexer.token() == Token.NOT) {
lexer.nextToken();
acceptIdentifier("CHAIN");
stmt.setChain(Boolean.FALSE);
} else {
acceptIdentifier("CHAIN");
stmt.setChain(Boolean.TRUE);
}
}
return stmt;
}
public MySqlCommitStatement parseCommit() throws ParserException {
acceptIdentifier("COMMIT");
MySqlCommitStatement stmt = new MySqlCommitStatement();
if (identifierEquals("WORK")) {
lexer.nextToken();
stmt.setWork(true);
}
if (lexer.token() == Token.AND) {
lexer.nextToken();
if (lexer.token() == Token.NOT) {
lexer.nextToken();
acceptIdentifier("CHAIN");
stmt.setChain(Boolean.FALSE);
} else {
acceptIdentifier("CHAIN");
stmt.setChain(Boolean.TRUE);
}
}
return stmt;
}
public MySqlReplicateStatement parseReplicate() throws ParserException {
MySqlReplicateStatement stmt = new MySqlReplicateStatement();
acceptIdentifier("REPLACE");
if (identifierEquals("LOW_PRIORITY")) {
stmt.setLowPriority(true);
lexer.nextToken();
}
if (identifierEquals("DELAYED")) {
stmt.setDelayed(true);
lexer.nextToken();
}
if (lexer.token() == Token.INTO) {
lexer.nextToken();
}
SQLName tableName = exprParser.name();
stmt.setTableName(tableName);
if (lexer.token() == Token.VALUES || identifierEquals("VALUE")) {
lexer.nextToken();
for (;;) {
accept(Token.LPAREN);
SQLInsertStatement.ValuesClause values = new SQLInsertStatement.ValuesClause();
this.exprParser.exprList(values.getValues());
stmt.getValuesList().add(values);
accept(Token.RPAREN);
if (lexer.token() == Token.COMMA) {
lexer.nextToken();
continue;
} else {
break;
}
}
} else if (lexer.token() == Token.SELECT) {
SQLQueryExpr queryExpr = (SQLQueryExpr) this.exprParser.expr();
stmt.setQuery(queryExpr);
} else if (lexer.token() == Token.SET) {
lexer.nextToken();
for (;;) {
SQLUpdateSetItem item = new SQLUpdateSetItem();
item.setColumn(this.exprParser.name());
accept(Token.EQ);
item.setValue(this.exprParser.expr());
stmt.getSetItems().add(item);
if (lexer.token() == (Token.COMMA)) {
lexer.nextToken();
continue;
}
break;
}
}
return stmt;
}
protected SQLStatement parseLoad() throws ParserException {
acceptIdentifier("LOAD");
if (identifierEquals("DATA")) {
SQLStatement stmt = parseLoadDataInFile();
return stmt;
}
if (identifierEquals("XML")) {
SQLStatement stmt = parseLoadXml();
return stmt;
}
throw new ParserException("TODO");
}
protected MySqlLoadXmlStatement parseLoadXml() throws ParserException {
acceptIdentifier("XML");
MySqlLoadXmlStatement stmt = new MySqlLoadXmlStatement();
if (identifierEquals("LOW_PRIORITY")) {
stmt.setLowPriority(true);
lexer.nextToken();
}
if (identifierEquals("CONCURRENT")) {
stmt.setConcurrent(true);
lexer.nextToken();
}
if (identifierEquals("LOCAL")) {
stmt.setLocal(true);
lexer.nextToken();
}
acceptIdentifier("INFILE");
SQLLiteralExpr fileName = (SQLLiteralExpr) exprParser.expr();
stmt.setFileName(fileName);
if (identifierEquals("REPLACE")) {
stmt.setReplicate(true);
lexer.nextToken();
}
if (identifierEquals("IGNORE")) {
stmt.setIgnore(true);
lexer.nextToken();
}
accept(Token.INTO);
accept(Token.TABLE);
SQLName tableName = exprParser.name();
stmt.setTableName(tableName);
if (identifierEquals("CHARACTER")) {
lexer.nextToken();
accept(Token.SET);
if (lexer.token() != Token.LITERAL_CHARS) {
throw new ParserException("syntax error, illegal charset");
}
String charset = lexer.stringVal();
lexer.nextToken();
stmt.setCharset(charset);
}
if (identifierEquals("ROWS")) {
lexer.nextToken();
accept(Token.IDENTIFIED);
accept(Token.BY);
SQLExpr rowsIdentifiedBy = exprParser.expr();
stmt.setRowsIdentifiedBy(rowsIdentifiedBy);
}
if (identifierEquals("IGNORE")) {
throw new ParserException("TODO");
}
if (lexer.token() == Token.SET) {
throw new ParserException("TODO");
}
return stmt;
}
protected MySqlLoadDataInFileStatement parseLoadDataInFile() throws ParserException {
acceptIdentifier("DATA");
MySqlLoadDataInFileStatement stmt = new MySqlLoadDataInFileStatement();
if (identifierEquals("LOW_PRIORITY")) {
stmt.setLowPriority(true);
lexer.nextToken();
}
if (identifierEquals("CONCURRENT")) {
stmt.setConcurrent(true);
lexer.nextToken();
}
if (identifierEquals("LOCAL")) {
stmt.setLocal(true);
lexer.nextToken();
}
acceptIdentifier("INFILE");
SQLLiteralExpr fileName = (SQLLiteralExpr) exprParser.expr();
stmt.setFileName(fileName);
if (identifierEquals("REPLACE")) {
stmt.setReplicate(true);
lexer.nextToken();
}
if (identifierEquals("IGNORE")) {
stmt.setIgnore(true);
lexer.nextToken();
}
accept(Token.INTO);
accept(Token.TABLE);
SQLName tableName = exprParser.name();
stmt.setTableName(tableName);
if (identifierEquals("CHARACTER")) {
lexer.nextToken();
accept(Token.SET);
if (lexer.token() != Token.LITERAL_CHARS) {
throw new ParserException("syntax error, illegal charset");
}
String charset = lexer.stringVal();
lexer.nextToken();
stmt.setCharset(charset);
}
if (identifierEquals("FIELDS") || identifierEquals("COLUMNS")) {
throw new ParserException("TODO");
}
if (identifierEquals("LINES")) {
throw new ParserException("TODO");
}
if (identifierEquals("IGNORE")) {
throw new ParserException("TODO");
}
if (lexer.token() == Token.SET) {
throw new ParserException("TODO");
}
return stmt;
}
public MySqlPrepareStatement parsePrepare() throws ParserException {
acceptIdentifier("PREPARE");
SQLName name = exprParser.name();
accept(Token.FROM);
SQLExpr from = exprParser.expr();
return new MySqlPrepareStatement(name, from);
}
public MySqlExecuteStatement parseExecute() throws ParserException {
acceptIdentifier("EXECUTE");
MySqlExecuteStatement stmt = new MySqlExecuteStatement();
SQLName statementName = exprParser.name();
stmt.setStatementName(statementName);
if (identifierEquals("USING")) {
lexer.nextToken();
exprParser.exprList(stmt.getParameters());
}
return stmt;
}
public SQLInsertStatement parseInsert() {
MySqlInsertStatement insertStatement = new MySqlInsertStatement();
if (lexer.token() == Token.INSERT) {
lexer.nextToken();
if (identifierEquals("LOW_PRIORITY")) {
insertStatement.setLowPriority(true);
lexer.nextToken();
}
if (identifierEquals("DELAYED")) {
insertStatement.setDelayed(true);
lexer.nextToken();
}
if (identifierEquals("HIGH_PRIORITY")) {
insertStatement.setHighPriority(true);
lexer.nextToken();
}
if (identifierEquals("IGNORE")) {
insertStatement.setIgnore(true);
lexer.nextToken();
}
if (lexer.token() == Token.INTO) {
lexer.nextToken();
}
SQLName tableName = this.exprParser.name();
insertStatement.setTableName(tableName);
if (lexer.token() == Token.IDENTIFIER) {
insertStatement.setAlias(lexer.stringVal());
lexer.nextToken();
}
}
if (lexer.token() == (Token.LPAREN)) {
lexer.nextToken();
this.exprParser.exprList(insertStatement.getColumns());
accept(Token.RPAREN);
}
if (lexer.token() == (Token.VALUES)) {
lexer.nextToken();
for (;;) {
accept(Token.LPAREN);
SQLInsertStatement.ValuesClause values = new SQLInsertStatement.ValuesClause();
this.exprParser.exprList(values.getValues());
insertStatement.getValuesList().add(values);
accept(Token.RPAREN);
if (lexer.token() == Token.COMMA) {
lexer.nextToken();
continue;
} else {
break;
}
}
} else if (lexer.token() == (Token.SELECT)) {
SQLQueryExpr queryExpr = (SQLQueryExpr) this.exprParser.expr();
insertStatement.setQuery(queryExpr.getSubQuery());
}
if (lexer.token() == Token.ON) {
lexer.nextToken();
acceptIdentifier("DUPLICATE");
accept(Token.KEY);
accept(Token.UPDATE);
exprParser.exprList(insertStatement.getDuplicateKeyUpdate());
}
return insertStatement;
}
public SQLStatement parseDropUser() throws ParserException {
accept(Token.USER);
MySqlDropUser stmt = new MySqlDropUser();
for (;;) {
SQLCharExpr expr = (SQLCharExpr) this.exprParser.expr();
String user = expr.toString();
if (lexer.token() == Token.VARIANT) {
lexer.nextToken();
SQLCharExpr expr2 = (SQLCharExpr) this.exprParser.expr();
user += '@';
user += expr2.toString();
}
stmt.getUsers().add(new SQLIdentifierExpr(user));
if (lexer.token() == Token.COMMA) {
lexer.nextToken();
continue;
}
break;
}
return stmt;
}
protected SQLDropTableStatement parseDropTable(boolean acceptDrop) {
if (acceptDrop) {
accept(Token.DROP);
}
accept(Token.TABLE);
MySqlDropTableStatement stmt = new MySqlDropTableStatement();
if (lexer.token() == Token.IF) {
lexer.nextToken();
accept(Token.EXISTS);
stmt.setIfExists(true);
}
for (;;) {
SQLName name = this.exprParser.name();
stmt.addTableSource(name);
if (lexer.token() == Token.COMMA) {
lexer.nextToken();
continue;
}
break;
}
return stmt;
}
public SQLSelectParser createSQLSelectParser() {
return new MySqlSelectParser(this.lexer);
}
}