| /* |
| * 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.index.dev.expr; |
| |
| import java.io.IOException; |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.UUID; |
| |
| import org.apache.carbondata.core.index.IndexFilter; |
| import org.apache.carbondata.core.index.IndexInputSplit; |
| import org.apache.carbondata.core.index.IndexLevel; |
| import org.apache.carbondata.core.index.Segment; |
| import org.apache.carbondata.core.index.TableIndex; |
| import org.apache.carbondata.core.index.dev.Index; |
| import org.apache.carbondata.core.indexstore.ExtendedBlocklet; |
| import org.apache.carbondata.core.indexstore.PartitionSpec; |
| import org.apache.carbondata.core.metadata.schema.table.IndexSchema; |
| import org.apache.carbondata.core.scan.filter.resolver.FilterResolverIntf; |
| |
| public class IndexExprWrapperImpl extends IndexExprWrapper { |
| |
| private static final long serialVersionUID = -6240385328696074171L; |
| |
| private transient TableIndex index; |
| |
| private FilterResolverIntf expression; |
| |
| private String uniqueId; |
| |
| public IndexExprWrapperImpl(TableIndex index, FilterResolverIntf expression) { |
| this.index = index; |
| this.expression = expression; |
| this.uniqueId = UUID.randomUUID().toString(); |
| } |
| |
| @Override |
| public List<ExtendedBlocklet> prune(List<Segment> segments, List<PartitionSpec> partitionsToPrune) |
| throws IOException { |
| return index.prune(segments, new IndexFilter(expression), partitionsToPrune); |
| } |
| |
| public List<ExtendedBlocklet> prune(IndexInputSplit distributable, |
| List<PartitionSpec> partitionsToPrune) |
| throws IOException { |
| List<Index> indices = index.getTableIndexes(distributable); |
| return index.prune(indices, distributable, expression, partitionsToPrune); |
| } |
| |
| @Override |
| public List<ExtendedBlocklet> pruneBlocklets(List<ExtendedBlocklet> blocklets) { |
| List<ExtendedBlocklet> blockletList = new ArrayList<>(); |
| for (ExtendedBlocklet blocklet: blocklets) { |
| if (blocklet.getIndexUniqueId().equals(uniqueId)) { |
| blockletList.add(blocklet); |
| } |
| } |
| return blockletList; |
| } |
| |
| @Override |
| public FilterResolverIntf getFilterResolverIntf() { |
| return expression; |
| } |
| |
| @Override |
| public FilterResolverIntf getFilterResolverIntf(String uniqueId) { |
| if (this.uniqueId.equals(uniqueId)) { |
| return expression; |
| } |
| return null; |
| } |
| |
| @Override |
| public List<IndexInputSplitWrapper> toDistributable(List<Segment> segments) { |
| List<IndexInputSplit> indexInputSplits = index.toDistributable(segments); |
| List<IndexInputSplitWrapper> wrappers = new ArrayList<>(); |
| for (IndexInputSplit distributable : indexInputSplits) { |
| wrappers.add(new IndexInputSplitWrapper(uniqueId, distributable)); |
| } |
| return wrappers; |
| } |
| |
| @Override |
| public IndexLevel getIndexLevel() { |
| return index.getIndexFactory().getIndexLevel(); |
| } |
| |
| public IndexSchema getIndexSchema() { |
| return index.getIndexSchema(); |
| } |
| |
| @Override |
| public IndexExprWrapper getLeftIndexWrapper() { |
| return null; |
| } |
| |
| @Override |
| public IndexExprWrapper getRightIndexWrapper() { |
| return null; |
| } |
| |
| /** |
| * Convert segment to distributable object. |
| */ |
| public IndexInputSplitWrapper toDistributableSegment(Segment segment) |
| throws IOException { |
| return index.toDistributableSegment(segment, uniqueId); |
| } |
| } |