com.alibaba.druid.sql.dialect.odps.parser.OdpsCreateTableParser Maven / Gradle / Ivy
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An JDBC datasource implementation.
/*
* Copyright 1999-2017 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.ClusteringType;
import com.alibaba.druid.sql.ast.SQLExpr;
import com.alibaba.druid.sql.ast.SQLName;
import com.alibaba.druid.sql.ast.expr.SQLIntegerExpr;
import com.alibaba.druid.sql.ast.statement.*;
import com.alibaba.druid.sql.dialect.hive.ast.HiveInputOutputFormat;
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;
import com.alibaba.druid.util.FnvHash;
public class OdpsCreateTableParser extends SQLCreateTableParser {
public OdpsCreateTableParser(String sql) {
super(new OdpsExprParser(sql));
}
public OdpsCreateTableParser(SQLExprParser exprParser) {
super(exprParser);
}
public SQLCreateTableStatement parseCreateTable(boolean acceptCreate) {
OdpsCreateTableStatement stmt = new OdpsCreateTableStatement();
if (acceptCreate) {
accept(Token.CREATE);
}
if (lexer.identifierEquals(FnvHash.Constants.EXTERNAL)) {
lexer.nextToken();
stmt.setExternal(true);
}
accept(Token.TABLE);
if (lexer.token() == Token.IF || lexer.identifierEquals("IF")) {
lexer.nextToken();
accept(Token.NOT);
accept(Token.EXISTS);
stmt.setIfNotExiists(true);
}
stmt.setName(this.exprParser.name());
if (lexer.token() == Token.COMMENT) {
lexer.nextToken();
stmt.setComment(this.exprParser.primary());
}
if (lexer.token() == Token.SEMI || lexer.token() == Token.EOF) {
return stmt;
}
for (; ; ) {
if (lexer.identifierEquals(FnvHash.Constants.TBLPROPERTIES)) {
parseTblProperties(stmt);
continue;
}
if (lexer.identifierEquals(FnvHash.Constants.LIFECYCLE)) {
lexer.nextToken();
stmt.setLifecycle(this.exprParser.expr());
continue;
}
if (lexer.identifierEquals(FnvHash.Constants.STORED)) {
lexer.nextToken();
accept(Token.AS);
if (lexer.identifierEquals(FnvHash.Constants.INPUTFORMAT)) {
HiveInputOutputFormat format = new HiveInputOutputFormat();
lexer.nextToken();
format.setInput(this.exprParser.primary());
if (lexer.identifierEquals(FnvHash.Constants.OUTPUTFORMAT)) {
lexer.nextToken();
format.setOutput(this.exprParser.primary());
}
stmt.setStoredAs(format);
} else {
SQLName name = this.exprParser.name();
stmt.setStoredAs(name);
}
continue;
}
break;
}
if (lexer.token() == Token.LIKE) {
lexer.nextToken();
SQLName name = this.exprParser.name();
stmt.setLike(name);
} else if (lexer.token() == Token.AS) {
lexer.nextToken();
OdpsSelectParser selectParser = new OdpsSelectParser(this.exprParser);
SQLSelect select = selectParser.select();
stmt.setSelect(select);
} else if (lexer.token() != Token.LPAREN && stmt.isExternal()) {
// skip
} else {
accept(Token.LPAREN);
if (lexer.isKeepComments() && lexer.hasComment()) {
stmt.addBodyBeforeComment(lexer.readAndResetComments());
}
for (; ; ) {
SQLColumnDefinition column;
switch (lexer.token()) {
case IDENTIFIER:
case KEY:
case SEQUENCE:
case USER:
case GROUP:
case INDEX:
case ENABLE:
case DISABLE:
case DESC:
case ALL:
case INTERVAL:
case OPEN:
case PARTITION:
case SCHEMA:
case CONSTRAINT:
case COMMENT:
case VIEW:
case SHOW:
case ORDER:
case LEAVE:
case UNIQUE:
case DEFAULT:
case EXPLAIN:
case CHECK:
case CLOSE:
case IN:
case OUT:
case INOUT:
case LIMIT:
case FULL:
case MINUS:
case VALUES:
case TRIGGER:
case USE:
case LIKE:
case DISTRIBUTE:
case DELETE:
case UPDATE:
case IS:
case LEFT:
case RIGHT:
case REPEAT:
case COMPUTE:
case LOCK:
case TABLE:
case DO:
case WHILE:
case LOOP:
case FOR:
case RLIKE:
case PROCEDURE:
case GRANT:
case EXCEPT:
case CREATE:
case PARTITIONED:
case UNION:
case PRIMARY:
case INNER:
case TO:
case DECLARE:
case REFERENCES:
case FOREIGN:
case ESCAPE:
case BY:
case ALTER:
case SOME:
case ASC:
case NULL:
case CURSOR:
case FETCH:
case OVER:
case DATABASE:
column = this.exprParser.parseColumn(stmt);
break;
default:
throw new ParserException("expect identifier. " + lexer.info());
}
stmt.addColumn(column);
if (lexer.isKeepComments() && lexer.hasComment()) {
column.addAfterComment(lexer.readAndResetComments());
}
if (!(lexer.token() == (Token.COMMA))) {
break;
} else {
lexer.nextToken();
if (lexer.isKeepComments() && lexer.hasComment()) {
column.addAfterComment(lexer.readAndResetComments());
}
}
}
accept(Token.RPAREN);
}
for (; ; ) {
if (lexer.token() == Token.COMMENT) {
lexer.nextToken();
stmt.setComment(this.exprParser.primary());
continue;
}
if (lexer.token() == Token.PARTITIONED) {
lexer.nextToken();
accept(Token.BY);
accept(Token.LPAREN);
for (; ; ) {
switch (lexer.token()) {
case INDEX:
case KEY:
case CHECK:
case IDENTIFIER:
case GROUP:
case INTERVAL:
case LOOP:
case USER:
case TABLE:
case PARTITION:
case SEQUENCE:
case VARIANT:
break;
default:
throw new ParserException("expect identifier. " + lexer.info());
}
SQLColumnDefinition column = this.exprParser.parseColumn();
stmt.addPartitionColumn(column);
if (lexer.isKeepComments() && lexer.hasComment()) {
column.addAfterComment(lexer.readAndResetComments());
}
if (lexer.token() != Token.COMMA) {
break;
} else {
lexer.nextToken();
if (lexer.isKeepComments() && lexer.hasComment()) {
column.addAfterComment(lexer.readAndResetComments());
}
}
}
accept(Token.RPAREN);
continue;
}
if (lexer.identifierEquals(FnvHash.Constants.RANGE)) {
lexer.nextToken();
if (lexer.identifierEquals(FnvHash.Constants.CLUSTERED)) {
stmt.setClusteringType(ClusteringType.Range);
}
continue;
}
if (lexer.identifierEquals(FnvHash.Constants.CLUSTERED)) {
lexer.nextToken();
accept(Token.BY);
accept(Token.LPAREN);
for (; ; ) {
SQLSelectOrderByItem item = this.exprParser.parseSelectOrderByItem();
stmt.addClusteredByItem(item);
if (lexer.token() == Token.COMMA) {
lexer.nextToken();
continue;
}
break;
}
accept(Token.RPAREN);
continue;
}
if (lexer.identifierEquals(FnvHash.Constants.ROW)) {
SQLExternalRecordFormat recordFormat = this.exprParser.parseRowFormat();
stmt.setRowFormat(recordFormat);
continue;
}
if (lexer.identifierEquals(FnvHash.Constants.SORTED)) {
lexer.nextToken();
accept(Token.BY);
accept(Token.LPAREN);
for (; ; ) {
SQLSelectOrderByItem item = this.exprParser.parseSelectOrderByItem();
stmt.addSortedByItem(item);
if (lexer.token() == Token.COMMA) {
lexer.nextToken();
continue;
}
break;
}
accept(Token.RPAREN);
continue;
}
if (stmt.getClusteringType() != ClusteringType.Range &&
(stmt.getClusteredBy().size() > 0 || stmt.getSortedBy().size() > 0) && lexer.token() == Token.INTO) {
lexer.nextToken();
if (lexer.token() == Token.LITERAL_INT) {
stmt.setBuckets(lexer.integerValue().intValue());
lexer.nextToken();
} else {
throw new ParserException("into buckets must be integer. " + lexer.info());
}
acceptIdentifier("BUCKETS");
if (lexer.token() == Token.INTO) {
lexer.nextToken();
if (lexer.token() == Token.LITERAL_INT) {
stmt.setShards(lexer.integerValue().intValue());
lexer.nextToken();
} else {
throw new ParserException("into shards must be integer. " + lexer.info());
}
acceptIdentifier("SHARDS");
}
continue;
}
if (lexer.token() == Token.INTO) {
lexer.nextToken();
if (lexer.token() == Token.LITERAL_INT) {
stmt.setIntoBuckets(
new SQLIntegerExpr(lexer.integerValue().intValue()));
lexer.nextToken();
acceptIdentifier("BUCKETS");
} else {
throw new ParserException("into shards must be integer. " + lexer.info());
}
continue;
}
if (lexer.token() == Token.AS && stmt.getSelect() == null) {
lexer.nextToken();
OdpsSelectParser selectParser = new OdpsSelectParser(this.exprParser);
SQLSelect select = selectParser.select();
stmt.setSelect(select);
continue;
}
if (lexer.identifierEquals(FnvHash.Constants.LIFECYCLE)) {
lexer.nextToken();
stmt.setLifecycle(this.exprParser.expr());
continue;
}
if (lexer.identifierEquals(FnvHash.Constants.STORED)) {
lexer.nextToken();
if (lexer.token() == Token.AS) {
lexer.nextToken();
if (lexer.identifierEquals(FnvHash.Constants.INPUTFORMAT)) {
HiveInputOutputFormat format = new HiveInputOutputFormat();
lexer.nextToken();
format.setInput(this.exprParser.primary());
if (lexer.identifierEquals(FnvHash.Constants.OUTPUTFORMAT)) {
lexer.nextToken();
format.setOutput(this.exprParser.primary());
}
stmt.setStoredAs(format);
} else {
SQLName storedAs = this.exprParser.name();
stmt.setStoredAs(storedAs);
}
} else {
accept(Token.BY);
SQLExpr storedBy = this.exprParser.expr();
stmt.setStoredBy(storedBy);
}
continue;
}
if (lexer.identifierEquals(FnvHash.Constants.LIFECYCLE)) {
lexer.nextToken();
stmt.setLifecycle(this.exprParser.expr());
continue;
}
if (lexer.token() == Token.WITH) {
lexer.nextToken();
acceptIdentifier("SERDEPROPERTIES");
accept(Token.LPAREN);
this.exprParser.exprList(stmt.getWithSerdeproperties(), stmt);
accept(Token.RPAREN);
continue;
}
if (lexer.identifierEquals(FnvHash.Constants.TBLPROPERTIES)) {
parseTblProperties(stmt);
continue;
}
if (lexer.identifierEquals(FnvHash.Constants.LOCATION)) {
lexer.nextToken();
SQLExpr location = this.exprParser.expr();
stmt.setLocation(location);
continue;
}
if (lexer.identifierEquals(FnvHash.Constants.TBLPROPERTIES)) {
parseTblProperties(stmt);
continue;
}
if (lexer.identifierEquals(FnvHash.Constants.USING)) {
lexer.nextToken();
SQLExpr using = this.exprParser.expr();
stmt.setUsing(using);
continue;
}
if (lexer.identifierEquals(FnvHash.Constants.LIFECYCLE)) {
lexer.nextToken();
stmt.setLifecycle(this.exprParser.expr());
continue;
}
break;
}
return stmt;
}
private void parseTblProperties(OdpsCreateTableStatement stmt) {
acceptIdentifier("TBLPROPERTIES");
accept(Token.LPAREN);
for (; ; ) {
String name = lexer.stringVal();
lexer.nextToken();
accept(Token.EQ);
SQLExpr value = this.exprParser.primary();
stmt.addTblProperty(name, value);
if (lexer.token() == Token.COMMA) {
lexer.nextToken();
if (lexer.token() == Token.RPAREN) {
break;
}
continue;
}
break;
}
accept(Token.RPAREN);
}
}
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