| /** |
| * 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.lens.cube.parse; |
| |
| import org.apache.lens.server.api.error.LensException; |
| |
| import org.apache.hadoop.hive.ql.parse.ASTNode; |
| |
| import lombok.AllArgsConstructor; |
| import lombok.Data; |
| import lombok.NoArgsConstructor; |
| |
| @Data |
| @AllArgsConstructor |
| @NoArgsConstructor |
| public class DefaultQueryAST implements QueryAST { |
| private ASTNode selectAST, whereAST, groupByAST, havingAST, joinAST, orderByAST; |
| private Integer limitValue; |
| private String fromString; |
| private String whereString; |
| |
| public String getSelectString() { |
| return HQLParser.getString(selectAST); |
| } |
| |
| public String getGroupByString() { |
| if (groupByAST != null) { |
| return HQLParser.getString(groupByAST); |
| } |
| return null; |
| } |
| |
| public String getHavingString() { |
| if (havingAST != null) { |
| return HQLParser.getString(havingAST); |
| } |
| return null; |
| } |
| |
| @Override |
| public String getOrderByString() { |
| if (orderByAST != null) { |
| return HQLParser.getString(orderByAST); |
| } |
| return null; |
| } |
| |
| public static DefaultQueryAST fromStorageCandidate(DimHQLContext sc) throws LensException { |
| return fromStorageCandidate(sc, sc.getQueryAst()); |
| } |
| public static DefaultQueryAST fromStorageCandidate(DimHQLContext sc, QueryAST ast) { |
| return new DefaultQueryAST(ast.getSelectAST(), |
| null, |
| ast.getGroupByAST(), ast.getHavingAST(), ast.getJoinAST(), ast.getOrderByAST(), ast.getLimitValue(), |
| ast.getFromString(), |
| sc != null ? sc.getWhere() : null); |
| } |
| } |