/*
* 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.odps.parser;
import com.alibaba.druid.sql.ast.SQLName;
import com.alibaba.druid.sql.ast.statement.SQLColumnDefinition;
import com.alibaba.druid.sql.ast.statement.SQLCreateTableStatement;
import com.alibaba.druid.sql.dialect.odps.ast.OdpsCreateTableStatement;
import com.alibaba.druid.sql.parser.ParserException;
import com.alibaba.druid.sql.parser.SQLCreateTableParser;
import com.alibaba.druid.sql.parser.SQLExprParser;
import com.alibaba.druid.sql.parser.Token;
public class OdpsCreateTableParser extends SQLCreateTableParser {
public OdpsCreateTableParser(String sql){
super(new OdpsExprParser(sql));
}
public OdpsCreateTableParser(SQLExprParser exprParser){
super(exprParser);
}
public SQLCreateTableStatement parseCrateTable(boolean acceptCreate) {
OdpsCreateTableStatement stmt = new OdpsCreateTableStatement();
if (acceptCreate) {
accept(Token.CREATE);
}
accept(Token.TABLE);
if (lexer.token() == Token.IF || identifierEquals("IF")) {
lexer.nextToken();
accept(Token.NOT);
accept(Token.EXISTS);
stmt.setIfNotExiists(true);
}
stmt.setName(this.exprParser.name());
if (lexer.token() == Token.LIKE) {
lexer.nextToken();
SQLName name = this.exprParser.name();
stmt.setLike(name);
} else {
accept(Token.LPAREN);
for (;;) {
if (lexer.token() != Token.IDENTIFIER) {
throw new ParserException("expect identifier");
}
SQLColumnDefinition column = this.exprParser.parseColumn();
stmt.getTableElementList().add(column);
if (!(lexer.token() == (Token.COMMA))) {
break;
} else {
lexer.nextToken();
}
}
accept(Token.RPAREN);
}
if (lexer.token() == Token.COMMENT) {
lexer.nextToken();
stmt.setComment(this.exprParser.primary());
}
if (lexer.token() == Token.PARTITIONED) {
lexer.nextToken();
accept(Token.BY);
accept(Token.LPAREN);
for (;;) {
if (lexer.token() != Token.IDENTIFIER) {
throw new ParserException("expect identifier");
}
SQLColumnDefinition column = this.exprParser.parseColumn();
stmt.getPartitionColumns().add(column);
if (!(lexer.token() == (Token.COMMA))) {
break;
} else {
lexer.nextToken();
}
}
accept(Token.RPAREN);
}
if (identifierEquals("LIFECYCLE")) {
lexer.nextToken();
stmt.setLifecycle(this.exprParser.expr());
}
return stmt;
}
}