/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 org.apache.drill.exec.planner.sql.parser.impl;
import java.io.Reader;
import org.apache.drill.exec.planner.physical.PlannerSettings;
import org.apache.drill.exec.planner.sql.parser.CompoundIdentifierConverter;
import org.apache.calcite.sql.SqlNode;
import org.apache.calcite.sql.parser.SqlAbstractParserImpl;
import org.apache.calcite.sql.parser.SqlParserImplFactory;
import org.apache.calcite.sql.util.SqlVisitor;
public class DrillParserWithCompoundIdConverter extends DrillParserImpl {
/**
* {@link org.apache.calcite.sql.parser.SqlParserImplFactory} implementation for creating parser.
*/
public static final SqlParserImplFactory FACTORY = new SqlParserImplFactory() {
public SqlAbstractParserImpl getParser(Reader stream) {
SqlAbstractParserImpl parserImpl = new DrillParserWithCompoundIdConverter(stream);
parserImpl.setIdentifierMaxLength(PlannerSettings.DEFAULT_IDENTIFIER_MAX_LENGTH);
return parserImpl;
}
};
public DrillParserWithCompoundIdConverter(Reader stream) {
super(stream);
}
protected SqlVisitor<SqlNode> createConverter() {
return new CompoundIdentifierConverter();
}
@Override
public SqlNode parseSqlExpressionEof() throws Exception {
SqlNode originalSqlNode = super.parseSqlExpressionEof();
return originalSqlNode.accept(createConverter());
}
@Override
public SqlNode parseSqlStmtEof() throws Exception {
SqlNode originalSqlNode = super.parseSqlStmtEof();
return originalSqlNode.accept(createConverter());
}
}