| /* |
| * 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.carbondata.core.mutate; |
| |
| import java.io.DataInput; |
| import java.io.DataOutput; |
| import java.io.IOException; |
| import java.io.Serializable; |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.apache.hadoop.io.Writable; |
| |
| /** |
| * VO object which contains the info used in CDC case during cache loading in Index server |
| */ |
| public class CdcVO implements Serializable, Writable { |
| |
| /** |
| * This collection contains column to index mapping which give info about the index for a column |
| * in IndexRow object to fetch min max |
| */ |
| private Map<String, Integer> columnToIndexMap; |
| |
| /** |
| * This list will contain the column indexes to fetch from the min max row in blocklet |
| */ |
| private List<Integer> indexesToFetch; |
| |
| public CdcVO(Map<String, Integer> columnToIndexMap) { |
| this.columnToIndexMap = columnToIndexMap; |
| } |
| |
| public CdcVO() { |
| } |
| |
| public Map<String, Integer> getColumnToIndexMap() { |
| return columnToIndexMap; |
| } |
| |
| public List<Integer> getIndexesToFetch() { |
| return indexesToFetch; |
| } |
| |
| @Override |
| public void write(DataOutput dataOutput) throws IOException { |
| Collection<Integer> indexesToFetch = columnToIndexMap.values(); |
| dataOutput.writeInt(indexesToFetch.size()); |
| for (Integer index : indexesToFetch) { |
| dataOutput.writeInt(index); |
| dataOutput.writeInt(index); |
| } |
| } |
| |
| @Override |
| public void readFields(DataInput dataInput) throws IOException { |
| this.indexesToFetch = new ArrayList<>(); |
| int lengthOfIndexes = dataInput.readInt(); |
| for (int i = 0; i < lengthOfIndexes; i++) { |
| indexesToFetch.add(dataInput.readInt()); |
| } |
| } |
| } |