| /* |
| * 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.kylin.cube.kv; |
| |
| import java.util.Map; |
| |
| import org.apache.kylin.common.annotation.Clarification; |
| import org.apache.kylin.common.util.Dictionary; |
| import org.apache.kylin.cube.CubeSegment; |
| import org.apache.kylin.cube.model.CubeDesc; |
| import org.apache.kylin.cube.model.RowKeyColDesc; |
| import org.apache.kylin.dimension.DictionaryDimEnc; |
| import org.apache.kylin.dimension.DimensionEncoding; |
| import org.apache.kylin.dimension.DimensionEncodingFactory; |
| import org.apache.kylin.dimension.FixedLenDimEnc; |
| import org.apache.kylin.dimension.IDimensionEncodingMap; |
| import org.apache.kylin.metadata.model.TblColRef; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import org.apache.kylin.shaded.com.google.common.collect.Maps; |
| |
| @Clarification(deprecated = true, msg = "Dimension dict is removed in Kylin 4 .") |
| public class CubeDimEncMap implements IDimensionEncodingMap, java.io.Serializable { |
| |
| private static final Logger logger = LoggerFactory.getLogger(CubeDimEncMap.class); |
| |
| final private CubeDesc cubeDesc; |
| final private CubeSegment seg; |
| final private Map<TblColRef, Dictionary<String>> dictionaryMap; |
| final private Map<TblColRef, DimensionEncoding> encMap = Maps.newHashMap(); |
| |
| public CubeDimEncMap(CubeSegment seg) { |
| this.cubeDesc = seg.getCubeDesc(); |
| this.seg = seg; |
| this.dictionaryMap = null; |
| } |
| |
| public CubeDimEncMap(CubeDesc cubeDesc, Map<TblColRef, Dictionary<String>> dictionaryMap) { |
| this.cubeDesc = cubeDesc; |
| this.seg = null; |
| this.dictionaryMap = dictionaryMap; |
| } |
| |
| @Override |
| public DimensionEncoding get(TblColRef col) { |
| DimensionEncoding result = encMap.get(col); |
| if (result == null) { |
| RowKeyColDesc colDesc = cubeDesc.getRowkey().getColDesc(col); |
| if (colDesc.isUsingDictionary()) { |
| // special dictionary encoding |
| Dictionary<String> dict = getDictionary(col); |
| if (dict == null) { |
| logger.warn("No dictionary found for dict-encoding column " + col + ", segment " + seg); |
| result = new FixedLenDimEnc(0); |
| } else { |
| result = new DictionaryDimEnc(dict); |
| } |
| } else { |
| // normal case |
| result = DimensionEncodingFactory.create(colDesc.getEncodingName(), colDesc.getEncodingArgs(), colDesc.getEncodingVersion()); |
| } |
| encMap.put(col, result); |
| } |
| return result; |
| } |
| |
| @Override |
| public Dictionary<String> getDictionary(TblColRef col) { |
| // if (seg == null) |
| return dictionaryMap.get(col); |
| // else |
| // return seg.getDictionary(col); |
| } |
| |
| } |