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/core/src/main/java/org/apache/carbondata/core/indexstore/blockletindex/BlockletDataMapFactory.java

/*
 * 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.indexstore.blockletindex;

import java.io.IOException;
import java.util.*;
import java.util.concurrent.ConcurrentHashMap;

import org.apache.carbondata.core.cache.Cache;
import org.apache.carbondata.core.cache.CacheProvider;
import org.apache.carbondata.core.cache.CacheType;
import org.apache.carbondata.core.constants.CarbonCommonConstants;
import org.apache.carbondata.core.datamap.DataMapDistributable;
import org.apache.carbondata.core.datamap.DataMapMeta;
import org.apache.carbondata.core.datamap.Segment;
import org.apache.carbondata.core.datamap.dev.CacheableDataMap;
import org.apache.carbondata.core.datamap.dev.DataMap;
import org.apache.carbondata.core.datamap.dev.DataMapBuilder;
import org.apache.carbondata.core.datamap.dev.DataMapWriter;
import org.apache.carbondata.core.datamap.dev.cgdatamap.CoarseGrainDataMap;
import org.apache.carbondata.core.datamap.dev.cgdatamap.CoarseGrainDataMapFactory;
import org.apache.carbondata.core.datastore.block.SegmentProperties;
import org.apache.carbondata.core.datastore.filesystem.CarbonFile;
import org.apache.carbondata.core.datastore.impl.FileFactory;
import org.apache.carbondata.core.features.TableOperation;
import org.apache.carbondata.core.indexstore.Blocklet;
import org.apache.carbondata.core.indexstore.BlockletDataMapIndexWrapper;
import org.apache.carbondata.core.indexstore.BlockletDetailsFetcher;
import org.apache.carbondata.core.indexstore.ExtendedBlocklet;
import org.apache.carbondata.core.indexstore.PartitionSpec;
import org.apache.carbondata.core.indexstore.SegmentPropertiesFetcher;
import org.apache.carbondata.core.indexstore.TableBlockIndexUniqueIdentifier;
import org.apache.carbondata.core.indexstore.TableBlockIndexUniqueIdentifierWrapper;
import org.apache.carbondata.core.memory.MemoryException;
import org.apache.carbondata.core.metadata.AbsoluteTableIdentifier;
import org.apache.carbondata.core.metadata.schema.table.CarbonTable;
import org.apache.carbondata.core.metadata.schema.table.DataMapSchema;
import org.apache.carbondata.core.scan.filter.resolver.FilterResolverIntf;
import org.apache.carbondata.core.util.BlockletDataMapUtil;
import org.apache.carbondata.core.util.path.CarbonTablePath;
import org.apache.carbondata.events.Event;

import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.LocatedFileStatus;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.fs.RemoteIterator;

/**
 * Table map for blocklet
 */
public class BlockletDataMapFactory extends CoarseGrainDataMapFactory
    implements BlockletDetailsFetcher, SegmentPropertiesFetcher, CacheableDataMap {

  private static final String NAME = "clustered.btree.blocklet";
  /**
   * variable for cache level BLOCKLET
   */
  public static final String CACHE_LEVEL_BLOCKLET = "BLOCKLET";

  public static final DataMapSchema DATA_MAP_SCHEMA =
      new DataMapSchema(NAME, BlockletDataMapFactory.class.getName());

  private AbsoluteTableIdentifier identifier;

  // segmentId -> list of index file
  private Map<String, Set<TableBlockIndexUniqueIdentifier>> segmentMap = new ConcurrentHashMap<>();

  private Cache<TableBlockIndexUniqueIdentifierWrapper, BlockletDataMapIndexWrapper> cache;

  public BlockletDataMapFactory(CarbonTable carbonTable, DataMapSchema dataMapSchema) {
    super(carbonTable, dataMapSchema);
    this.identifier = carbonTable.getAbsoluteTableIdentifier();
    cache = CacheProvider.getInstance()
        .createCache(CacheType.DRIVER_BLOCKLET_DATAMAP);
  }

  /**
   * create dataMap based on cache level
   *
   * @param carbonTable
   * @return
   */
  public static DataMap createDataMap(CarbonTable carbonTable) {
    boolean cacheLevelBlock = BlockletDataMapUtil.isCacheLevelBlock(carbonTable);
    if (cacheLevelBlock) {
      // case1: when CACHE_LEVEL = BLOCK
      return new BlockDataMap();
    } else {
      // case2: when CACHE_LEVEL = BLOCKLET
      return new BlockletDataMap();
    }
  }

  @Override
  public DataMapWriter createWriter(Segment segment, String shardName,
      SegmentProperties segmentProperties) throws IOException {
    throw new UnsupportedOperationException("not implemented");
  }

  @Override
  public DataMapBuilder createBuilder(Segment segment, String shardName,
      SegmentProperties segmentProperties) throws IOException {
    throw new UnsupportedOperationException("not implemented");
  }

  /**
   * Get the datamap for all segments
   */
  public Map<Segment, List<CoarseGrainDataMap>> getDataMaps(List<Segment> segments)
      throws IOException {
    List<TableBlockIndexUniqueIdentifierWrapper> tableBlockIndexUniqueIdentifierWrappers =
        new ArrayList<>();
    Map<Segment, List<CoarseGrainDataMap>> dataMaps = new HashMap<>();
    Map<String, Segment> segmentMap = new HashMap<>();
    for (Segment segment : segments) {
      segmentMap.put(segment.getSegmentNo(), segment);
      Set<TableBlockIndexUniqueIdentifier> identifiers =
          getTableBlockIndexUniqueIdentifiers(segment);

      for (TableBlockIndexUniqueIdentifier tableBlockIndexUniqueIdentifier : identifiers) {
        tableBlockIndexUniqueIdentifierWrappers.add(
            new TableBlockIndexUniqueIdentifierWrapper(tableBlockIndexUniqueIdentifier,
                this.getCarbonTable(), segment.getConfiguration()));
      }
    }
    List<BlockletDataMapIndexWrapper> blockletDataMapIndexWrappers =
        cache.getAll(tableBlockIndexUniqueIdentifierWrappers);
    for (BlockletDataMapIndexWrapper wrapper : blockletDataMapIndexWrappers) {
      Segment segment = segmentMap.get(wrapper.getSegmentId());
      List<CoarseGrainDataMap> datamapList = dataMaps.get(segment);
      if (null == datamapList) {
        datamapList = new ArrayList<CoarseGrainDataMap>();
      }
      datamapList.addAll(wrapper.getDataMaps());
      dataMaps.put(segment, datamapList);
    }
    return dataMaps;
  }

  @Override public List<CoarseGrainDataMap> getDataMaps(Segment segment) throws IOException {
    List<CoarseGrainDataMap> dataMaps = new ArrayList<>();
    Set<TableBlockIndexUniqueIdentifier> identifiers =
        getTableBlockIndexUniqueIdentifiers(segment);
    List<TableBlockIndexUniqueIdentifierWrapper> tableBlockIndexUniqueIdentifierWrappers =
        new ArrayList<>(identifiers.size());
    for (TableBlockIndexUniqueIdentifier tableBlockIndexUniqueIdentifier : identifiers) {
      tableBlockIndexUniqueIdentifierWrappers.add(
          new TableBlockIndexUniqueIdentifierWrapper(tableBlockIndexUniqueIdentifier,
              this.getCarbonTable()));
    }
    List<BlockletDataMapIndexWrapper> blockletDataMapIndexWrappers =
        cache.getAll(tableBlockIndexUniqueIdentifierWrappers);
    for (BlockletDataMapIndexWrapper wrapper : blockletDataMapIndexWrappers) {
      dataMaps.addAll(wrapper.getDataMaps());
    }
    return dataMaps;
  }

  private Set<TableBlockIndexUniqueIdentifier> getTableBlockIndexUniqueIdentifiers(Segment segment)
      throws IOException {
    Set<TableBlockIndexUniqueIdentifier> tableBlockIndexUniqueIdentifiers =
        segmentMap.get(segment.getSegmentNo());
    if (tableBlockIndexUniqueIdentifiers == null) {
      tableBlockIndexUniqueIdentifiers =
          BlockletDataMapUtil.getTableBlockUniqueIdentifiers(segment);
      if (tableBlockIndexUniqueIdentifiers.size() > 0) {
        segmentMap.put(segment.getSegmentNo(), tableBlockIndexUniqueIdentifiers);
      }
    }
    return tableBlockIndexUniqueIdentifiers;
  }

  /**
   * Get the blocklet detail information based on blockletid, blockid and segmentid. This method is
   * exclusively for BlockletDataMapFactory as detail information is only available in this
   * default datamap.
   */
  @Override
  public List<ExtendedBlocklet> getExtendedBlocklets(List<Blocklet> blocklets, Segment segment)
      throws IOException {
    List<ExtendedBlocklet> detailedBlocklets = new ArrayList<>();
    // If it is already detailed blocklet then type cast and return same
    if (blocklets.size() > 0 && blocklets.get(0) instanceof ExtendedBlocklet) {
      for (Blocklet blocklet : blocklets) {
        detailedBlocklets.add((ExtendedBlocklet) blocklet);
      }
      return detailedBlocklets;
    }
    Set<TableBlockIndexUniqueIdentifier> identifiers =
        getTableBlockIndexUniqueIdentifiers(segment);
    Set<TableBlockIndexUniqueIdentifierWrapper> tableBlockIndexUniqueIdentifierWrappers =
        new HashSet<>(identifiers.size());
    for (TableBlockIndexUniqueIdentifier tableBlockIndexUniqueIdentifier : identifiers) {
      tableBlockIndexUniqueIdentifierWrappers.add(
          new TableBlockIndexUniqueIdentifierWrapper(tableBlockIndexUniqueIdentifier,
              this.getCarbonTable()));
    }
    // Retrieve each blocklets detail information from blocklet datamap
    for (Blocklet blocklet : blocklets) {
      detailedBlocklets.add(getExtendedBlocklet(tableBlockIndexUniqueIdentifierWrappers, blocklet));
    }
    return detailedBlocklets;
  }

  @Override
  public ExtendedBlocklet getExtendedBlocklet(Blocklet blocklet, Segment segment)
      throws IOException {
    if (blocklet instanceof ExtendedBlocklet) {
      return (ExtendedBlocklet) blocklet;
    }
    Set<TableBlockIndexUniqueIdentifier> identifiers =
        getTableBlockIndexUniqueIdentifiers(segment);

    Set<TableBlockIndexUniqueIdentifierWrapper> tableBlockIndexUniqueIdentifierWrappers =
        new HashSet<>(identifiers.size());
    for (TableBlockIndexUniqueIdentifier tableBlockIndexUniqueIdentifier : identifiers) {
      tableBlockIndexUniqueIdentifierWrappers.add(
          new TableBlockIndexUniqueIdentifierWrapper(tableBlockIndexUniqueIdentifier,
              this.getCarbonTable()));
    }
    return getExtendedBlocklet(tableBlockIndexUniqueIdentifierWrappers, blocklet);
  }

  private ExtendedBlocklet getExtendedBlocklet(
      Set<TableBlockIndexUniqueIdentifierWrapper> identifiersWrapper, Blocklet blocklet)
      throws IOException {
    for (TableBlockIndexUniqueIdentifierWrapper identifierWrapper : identifiersWrapper) {
      BlockletDataMapIndexWrapper wrapper = cache.get(identifierWrapper);
      List<BlockDataMap> dataMaps = wrapper.getDataMaps();
      for (DataMap dataMap : dataMaps) {
        if (((BlockDataMap) dataMap)
            .getTableTaskInfo(BlockletDataMapRowIndexes.SUMMARY_INDEX_FILE_NAME)
            .startsWith(blocklet.getFilePath())) {
          return ((BlockDataMap) dataMap).getDetailedBlocklet(blocklet.getBlockletId());
        }
      }
    }
    throw new IOException("Blocklet not found: " + blocklet.toString());
  }


  @Override
  public List<DataMapDistributable> toDistributable(Segment segment) {
    List<DataMapDistributable> distributables = new ArrayList<>();
    try {
      Set<TableBlockIndexUniqueIdentifier> tableBlockIndexUniqueIdentifiers =
          getTableBlockIndexUniqueIdentifiers(segment);
      CarbonFile[] carbonIndexFiles = new CarbonFile[tableBlockIndexUniqueIdentifiers.size()];
      int identifierCounter = 0;
      for (TableBlockIndexUniqueIdentifier tableBlockIndexUniqueIdentifier :
          tableBlockIndexUniqueIdentifiers) {
        String indexFilePath = tableBlockIndexUniqueIdentifier.getIndexFilePath();
        String fileName = tableBlockIndexUniqueIdentifier.getIndexFileName();
        carbonIndexFiles[identifierCounter++] = FileFactory
            .getCarbonFile(indexFilePath + CarbonCommonConstants.FILE_SEPARATOR + fileName);
      }
      for (int i = 0; i < carbonIndexFiles.length; i++) {
        Path path = new Path(carbonIndexFiles[i].getPath());
        FileSystem fs = path.getFileSystem(FileFactory.getConfiguration());
        RemoteIterator<LocatedFileStatus> iter = fs.listLocatedStatus(path);
        LocatedFileStatus fileStatus = iter.next();
        String[] location = fileStatus.getBlockLocations()[0].getHosts();
        BlockletDataMapDistributable distributable =
            new BlockletDataMapDistributable(path.toString());
        distributable.setLocations(location);
        distributables.add(distributable);
      }
    } catch (IOException e) {
      throw new RuntimeException(e);
    }
    return distributables;
  }

  @Override
  public void fireEvent(Event event) {

  }

  @Override
  public void clear(Segment segment) {
    Set<TableBlockIndexUniqueIdentifier> blockIndexes = segmentMap.remove(segment.getSegmentNo());
    if (blockIndexes != null) {
      for (TableBlockIndexUniqueIdentifier blockIndex : blockIndexes) {
        TableBlockIndexUniqueIdentifierWrapper blockIndexWrapper =
            new TableBlockIndexUniqueIdentifierWrapper(blockIndex, this.getCarbonTable());
        BlockletDataMapIndexWrapper wrapper = cache.getIfPresent(blockIndexWrapper);
        if (null != wrapper) {
          List<BlockDataMap> dataMaps = wrapper.getDataMaps();
          for (DataMap dataMap : dataMaps) {
            if (dataMap != null) {
              cache.invalidate(blockIndexWrapper);
              dataMap.clear();
            }
          }
        }
      }
    }
  }

  @Override
  public synchronized void clear() {
    if (segmentMap.size() > 0) {
      for (String segmentId : segmentMap.keySet().toArray(new String[segmentMap.size()])) {
        clear(new Segment(segmentId, null, null));
      }
    }
  }

  @Override
  public List<CoarseGrainDataMap> getDataMaps(DataMapDistributable distributable)
      throws IOException {
    BlockletDataMapDistributable mapDistributable = (BlockletDataMapDistributable) distributable;
    List<TableBlockIndexUniqueIdentifierWrapper> identifiersWrapper = new ArrayList<>();
    Path indexPath = new Path(mapDistributable.getFilePath());
    String segmentNo = mapDistributable.getSegment().getSegmentNo();
    if (indexPath.getName().endsWith(CarbonTablePath.INDEX_FILE_EXT)) {
      String parent = indexPath.getParent().toString();
      identifiersWrapper.add(new TableBlockIndexUniqueIdentifierWrapper(
          new TableBlockIndexUniqueIdentifier(parent, indexPath.getName(), null, segmentNo),
          this.getCarbonTable()));
    } else if (indexPath.getName().endsWith(CarbonTablePath.MERGE_INDEX_FILE_EXT)) {
      SegmentIndexFileStore fileStore = new SegmentIndexFileStore();
      CarbonFile carbonFile = FileFactory.getCarbonFile(indexPath.toString());
      String parentPath = carbonFile.getParentFile().getAbsolutePath();
      List<String> indexFiles = fileStore.getIndexFilesFromMergeFile(carbonFile.getAbsolutePath());
      for (String indexFile : indexFiles) {
        identifiersWrapper.add(new TableBlockIndexUniqueIdentifierWrapper(
            new TableBlockIndexUniqueIdentifier(parentPath, indexFile, carbonFile.getName(),
                segmentNo), this.getCarbonTable()));
      }
    }
    List<CoarseGrainDataMap> dataMaps = new ArrayList<>();
    try {
      List<BlockletDataMapIndexWrapper> wrappers = cache.getAll(identifiersWrapper);
      for (BlockletDataMapIndexWrapper wrapper : wrappers) {
        dataMaps.addAll(wrapper.getDataMaps());
      }
    } catch (IOException e) {
      throw new RuntimeException(e);
    }
    return dataMaps;
  }

  @Override
  public DataMapMeta getMeta() {
    // TODO: pass SORT_COLUMNS into this class
    return null;
  }

  @Override
  public void deleteDatamapData(Segment segment) throws IOException {

  }

  @Override public void deleteDatamapData() {

  }

  @Override public SegmentProperties getSegmentProperties(Segment segment) throws IOException {
    List<CoarseGrainDataMap> dataMaps = getDataMaps(segment);
    assert (dataMaps.size() > 0);
    CoarseGrainDataMap coarseGrainDataMap = dataMaps.get(0);
    assert (coarseGrainDataMap instanceof BlockDataMap);
    BlockDataMap dataMap = (BlockDataMap) coarseGrainDataMap;
    return dataMap.getSegmentProperties();
  }

  @Override public List<Blocklet> getAllBlocklets(Segment segment, List<PartitionSpec> partitions)
      throws IOException {
    List<Blocklet> blocklets = new ArrayList<>();
    List<CoarseGrainDataMap> dataMaps = getDataMaps(segment);
    for (CoarseGrainDataMap dataMap : dataMaps) {
      blocklets.addAll(
          dataMap.prune((FilterResolverIntf) null, getSegmentProperties(segment), partitions));
    }
    return blocklets;
  }

  @Override public boolean willBecomeStale(TableOperation operation) {
    return false;
  }

  @Override
  public void cache(TableBlockIndexUniqueIdentifierWrapper tableBlockIndexUniqueIdentifierWrapper,
      BlockletDataMapIndexWrapper blockletDataMapIndexWrapper) throws IOException, MemoryException {
    cache.put(tableBlockIndexUniqueIdentifierWrapper, blockletDataMapIndexWrapper);
  }

  @Override
  public List<DataMapDistributable> getAllUncachedDistributables(
      List<DataMapDistributable> distributables) throws IOException {
    List<DataMapDistributable> distributablesToBeLoaded = new ArrayList<>(distributables.size());
    for (DataMapDistributable distributable : distributables) {
      Segment segment = distributable.getSegment();
      Set<TableBlockIndexUniqueIdentifier> tableBlockIndexUniqueIdentifiers =
          getTableBlockIndexUniqueIdentifiers(segment);
      // filter out the tableBlockIndexUniqueIdentifiers based on distributable
      TableBlockIndexUniqueIdentifier validIdentifier = BlockletDataMapUtil
          .filterIdentifiersBasedOnDistributable(tableBlockIndexUniqueIdentifiers,
              (BlockletDataMapDistributable) distributable);
      if (null == cache.getIfPresent(
          new TableBlockIndexUniqueIdentifierWrapper(validIdentifier, this.getCarbonTable()))) {
        ((BlockletDataMapDistributable) distributable)
            .setTableBlockIndexUniqueIdentifier(validIdentifier);
        distributablesToBeLoaded.add(distributable);
      }
    }
    return distributablesToBeLoaded;
  }
}

1	/*
2	* Licensed to the Apache Software Foundation (ASF) under one or more
3	* contributor license agreements. See the NOTICE file distributed with
4	* this work for additional information regarding copyright ownership.
5	* The ASF licenses this file to You under the Apache License, Version 2.0
6	* (the "License"); you may not use this file except in compliance with
7	* the License. You may obtain a copy of the License at
8	*
9	* http://www.apache.org/licenses/LICENSE-2.0
10	*
11	* Unless required by applicable law or agreed to in writing, software
12	* distributed under the License is distributed on an "AS IS" BASIS,
13	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14	* See the License for the specific language governing permissions and
15	* limitations under the License.
16	*/
17	package org.apache.carbondata.core.indexstore.blockletindex;
18
19	import java.io.IOException;
20	import java.util.*;
21	import java.util.concurrent.ConcurrentHashMap;
22
23	import org.apache.carbondata.core.cache.Cache;
24	import org.apache.carbondata.core.cache.CacheProvider;
25	import org.apache.carbondata.core.cache.CacheType;
26	import org.apache.carbondata.core.constants.CarbonCommonConstants;
27	import org.apache.carbondata.core.datamap.DataMapDistributable;
28	import org.apache.carbondata.core.datamap.DataMapMeta;
29	import org.apache.carbondata.core.datamap.Segment;
30	import org.apache.carbondata.core.datamap.dev.CacheableDataMap;
31	import org.apache.carbondata.core.datamap.dev.DataMap;
32	import org.apache.carbondata.core.datamap.dev.DataMapBuilder;
33	import org.apache.carbondata.core.datamap.dev.DataMapWriter;
34	import org.apache.carbondata.core.datamap.dev.cgdatamap.CoarseGrainDataMap;
35	import org.apache.carbondata.core.datamap.dev.cgdatamap.CoarseGrainDataMapFactory;
36	import org.apache.carbondata.core.datastore.block.SegmentProperties;
37	import org.apache.carbondata.core.datastore.filesystem.CarbonFile;
38	import org.apache.carbondata.core.datastore.impl.FileFactory;
39	import org.apache.carbondata.core.features.TableOperation;
40	import org.apache.carbondata.core.indexstore.Blocklet;
41	import org.apache.carbondata.core.indexstore.BlockletDataMapIndexWrapper;
42	import org.apache.carbondata.core.indexstore.BlockletDetailsFetcher;
43	import org.apache.carbondata.core.indexstore.ExtendedBlocklet;
44	import org.apache.carbondata.core.indexstore.PartitionSpec;
45	import org.apache.carbondata.core.indexstore.SegmentPropertiesFetcher;
46	import org.apache.carbondata.core.indexstore.TableBlockIndexUniqueIdentifier;
47	import org.apache.carbondata.core.indexstore.TableBlockIndexUniqueIdentifierWrapper;
48	import org.apache.carbondata.core.memory.MemoryException;
49	import org.apache.carbondata.core.metadata.AbsoluteTableIdentifier;
50	import org.apache.carbondata.core.metadata.schema.table.CarbonTable;
51	import org.apache.carbondata.core.metadata.schema.table.DataMapSchema;
52	import org.apache.carbondata.core.scan.filter.resolver.FilterResolverIntf;
53	import org.apache.carbondata.core.util.BlockletDataMapUtil;
54	import org.apache.carbondata.core.util.path.CarbonTablePath;
55	import org.apache.carbondata.events.Event;
56
57	import org.apache.hadoop.fs.FileSystem;
58	import org.apache.hadoop.fs.LocatedFileStatus;
59	import org.apache.hadoop.fs.Path;
60	import org.apache.hadoop.fs.RemoteIterator;
61
62	/**
63	* Table map for blocklet
64	*/
65	public class BlockletDataMapFactory extends CoarseGrainDataMapFactory	2✔
66	implements BlockletDetailsFetcher, SegmentPropertiesFetcher, CacheableDataMap {
67
68	private static final String NAME = "clustered.btree.blocklet";
69	/**
70	* variable for cache level BLOCKLET
71	*/
72	public static final String CACHE_LEVEL_BLOCKLET = "BLOCKLET";
73
74	public static final DataMapSchema DATA_MAP_SCHEMA =	2✔
75	new DataMapSchema(NAME, BlockletDataMapFactory.class.getName());	2✔
76
77	private AbsoluteTableIdentifier identifier;
78
79	// segmentId -> list of index file
80	private Map<String, Set<TableBlockIndexUniqueIdentifier>> segmentMap = new ConcurrentHashMap<>();	2✔
81
82	private Cache<TableBlockIndexUniqueIdentifierWrapper, BlockletDataMapIndexWrapper> cache;
83
84	public BlockletDataMapFactory(CarbonTable carbonTable, DataMapSchema dataMapSchema) {
85	super(carbonTable, dataMapSchema);	2✔
86	this.identifier = carbonTable.getAbsoluteTableIdentifier();	2✔
87	cache = CacheProvider.getInstance()	2✔
88	.createCache(CacheType.DRIVER_BLOCKLET_DATAMAP);	2✔
89	}	2✔
90
91	/**
92	* create dataMap based on cache level
93	*
94	* @param carbonTable
95	* @return
96	*/
97	public static DataMap createDataMap(CarbonTable carbonTable) {
98	boolean cacheLevelBlock = BlockletDataMapUtil.isCacheLevelBlock(carbonTable);	1✔
99	if (cacheLevelBlock) {	1✔
100	// case1: when CACHE_LEVEL = BLOCK
101	return new BlockDataMap();	1✔
102	} else {
103	// case2: when CACHE_LEVEL = BLOCKLET
104	return new BlockletDataMap();	1✔
105	}
106	}
107
108	@Override
109	public DataMapWriter createWriter(Segment segment, String shardName,
110	SegmentProperties segmentProperties) throws IOException {
111	throw new UnsupportedOperationException("not implemented");	×
112	}
113
114	@Override
115	public DataMapBuilder createBuilder(Segment segment, String shardName,
116	SegmentProperties segmentProperties) throws IOException {
117	throw new UnsupportedOperationException("not implemented");	×
118	}
119
120	/**
121	* Get the datamap for all segments
122	*/
123	public Map<Segment, List<CoarseGrainDataMap>> getDataMaps(List<Segment> segments)
124	throws IOException {
125	List<TableBlockIndexUniqueIdentifierWrapper> tableBlockIndexUniqueIdentifierWrappers =	1✔
126	new ArrayList<>();
127	Map<Segment, List<CoarseGrainDataMap>> dataMaps = new HashMap<>();	1✔
128	Map<String, Segment> segmentMap = new HashMap<>();	1✔
129	for (Segment segment : segments) {	1✔
130	segmentMap.put(segment.getSegmentNo(), segment);	1✔
131	Set<TableBlockIndexUniqueIdentifier> identifiers =	1✔
132	getTableBlockIndexUniqueIdentifiers(segment);	1✔
133
134	for (TableBlockIndexUniqueIdentifier tableBlockIndexUniqueIdentifier : identifiers) {	1✔
135	tableBlockIndexUniqueIdentifierWrappers.add(	1✔
136	new TableBlockIndexUniqueIdentifierWrapper(tableBlockIndexUniqueIdentifier,
137	this.getCarbonTable(), segment.getConfiguration()));	1✔
138	}	1✔
139	}	1✔
140	List<BlockletDataMapIndexWrapper> blockletDataMapIndexWrappers =	1✔
141	cache.getAll(tableBlockIndexUniqueIdentifierWrappers);	1✔
142	for (BlockletDataMapIndexWrapper wrapper : blockletDataMapIndexWrappers) {	1✔
143	Segment segment = segmentMap.get(wrapper.getSegmentId());	1✔
144	List<CoarseGrainDataMap> datamapList = dataMaps.get(segment);	1✔
145	if (null == datamapList) {	1✔
146	datamapList = new ArrayList<CoarseGrainDataMap>();	1✔
147	}
148	datamapList.addAll(wrapper.getDataMaps());	1✔
149	dataMaps.put(segment, datamapList);	1✔
150	}	1✔
151	return dataMaps;	1✔
152	}
153
154	@Override public List<CoarseGrainDataMap> getDataMaps(Segment segment) throws IOException {
155	List<CoarseGrainDataMap> dataMaps = new ArrayList<>();	1✔
156	Set<TableBlockIndexUniqueIdentifier> identifiers =	1✔
157	getTableBlockIndexUniqueIdentifiers(segment);	1✔
158	List<TableBlockIndexUniqueIdentifierWrapper> tableBlockIndexUniqueIdentifierWrappers =	1✔
159	new ArrayList<>(identifiers.size());	1✔
160	for (TableBlockIndexUniqueIdentifier tableBlockIndexUniqueIdentifier : identifiers) {	1✔
161	tableBlockIndexUniqueIdentifierWrappers.add(	1✔
162	new TableBlockIndexUniqueIdentifierWrapper(tableBlockIndexUniqueIdentifier,
163	this.getCarbonTable()));	1✔
164	}	1✔
165	List<BlockletDataMapIndexWrapper> blockletDataMapIndexWrappers =	1✔
166	cache.getAll(tableBlockIndexUniqueIdentifierWrappers);	1✔
167	for (BlockletDataMapIndexWrapper wrapper : blockletDataMapIndexWrappers) {	1✔
168	dataMaps.addAll(wrapper.getDataMaps());	1✔
169	}	1✔
170	return dataMaps;	1✔
171	}
172
173	private Set<TableBlockIndexUniqueIdentifier> getTableBlockIndexUniqueIdentifiers(Segment segment)
174	throws IOException {
175	Set<TableBlockIndexUniqueIdentifier> tableBlockIndexUniqueIdentifiers =	1✔
176	segmentMap.get(segment.getSegmentNo());	1✔
177	if (tableBlockIndexUniqueIdentifiers == null) {	1✔
178	tableBlockIndexUniqueIdentifiers =	1✔
179	BlockletDataMapUtil.getTableBlockUniqueIdentifiers(segment);	1✔
180	if (tableBlockIndexUniqueIdentifiers.size() > 0) {	1✔
181	segmentMap.put(segment.getSegmentNo(), tableBlockIndexUniqueIdentifiers);	1✔
182	}
183	}
184	return tableBlockIndexUniqueIdentifiers;	1✔
185	}
186
187	/**
188	* Get the blocklet detail information based on blockletid, blockid and segmentid. This method is
189	* exclusively for BlockletDataMapFactory as detail information is only available in this
190	* default datamap.
191	*/
192	@Override
193	public List<ExtendedBlocklet> getExtendedBlocklets(List<Blocklet> blocklets, Segment segment)
194	throws IOException {
195	List<ExtendedBlocklet> detailedBlocklets = new ArrayList<>();	1✔
196	// If it is already detailed blocklet then type cast and return same
197	if (blocklets.size() > 0 && blocklets.get(0) instanceof ExtendedBlocklet) {	1✔
198	for (Blocklet blocklet : blocklets) {	1✔
199	detailedBlocklets.add((ExtendedBlocklet) blocklet);	1✔
200	}	1✔
201	return detailedBlocklets;	1✔
202	}
203	Set<TableBlockIndexUniqueIdentifier> identifiers =	1✔
204	getTableBlockIndexUniqueIdentifiers(segment);	1✔
205	Set<TableBlockIndexUniqueIdentifierWrapper> tableBlockIndexUniqueIdentifierWrappers =	1✔
206	new HashSet<>(identifiers.size());	1✔
207	for (TableBlockIndexUniqueIdentifier tableBlockIndexUniqueIdentifier : identifiers) {	1✔
208	tableBlockIndexUniqueIdentifierWrappers.add(	1✔
209	new TableBlockIndexUniqueIdentifierWrapper(tableBlockIndexUniqueIdentifier,
210	this.getCarbonTable()));	1✔
211	}	1✔
212	// Retrieve each blocklets detail information from blocklet datamap
213	for (Blocklet blocklet : blocklets) {	1✔
214	detailedBlocklets.add(getExtendedBlocklet(tableBlockIndexUniqueIdentifierWrappers, blocklet));	1✔
215	}	1✔
216	return detailedBlocklets;	1✔
217	}
218
219	@Override
220	public ExtendedBlocklet getExtendedBlocklet(Blocklet blocklet, Segment segment)
221	throws IOException {
222	if (blocklet instanceof ExtendedBlocklet) {	1✔
223	return (ExtendedBlocklet) blocklet;	×
224	}
225	Set<TableBlockIndexUniqueIdentifier> identifiers =	1✔
226	getTableBlockIndexUniqueIdentifiers(segment);	1✔
227
228	Set<TableBlockIndexUniqueIdentifierWrapper> tableBlockIndexUniqueIdentifierWrappers =	1✔
229	new HashSet<>(identifiers.size());	1✔
230	for (TableBlockIndexUniqueIdentifier tableBlockIndexUniqueIdentifier : identifiers) {	1✔
231	tableBlockIndexUniqueIdentifierWrappers.add(	1✔
232	new TableBlockIndexUniqueIdentifierWrapper(tableBlockIndexUniqueIdentifier,
233	this.getCarbonTable()));	1✔
234	}	1✔
235	return getExtendedBlocklet(tableBlockIndexUniqueIdentifierWrappers, blocklet);	1✔
236	}
237
238	private ExtendedBlocklet getExtendedBlocklet(
239	Set<TableBlockIndexUniqueIdentifierWrapper> identifiersWrapper, Blocklet blocklet)
240	throws IOException {
241	for (TableBlockIndexUniqueIdentifierWrapper identifierWrapper : identifiersWrapper) {	1✔
242	BlockletDataMapIndexWrapper wrapper = cache.get(identifierWrapper);	1✔
243	List<BlockDataMap> dataMaps = wrapper.getDataMaps();	1✔
244	for (DataMap dataMap : dataMaps) {	1✔
245	if (((BlockDataMap) dataMap)	1✔
246	.getTableTaskInfo(BlockletDataMapRowIndexes.SUMMARY_INDEX_FILE_NAME)	1✔
247	.startsWith(blocklet.getFilePath())) {	1✔
248	return ((BlockDataMap) dataMap).getDetailedBlocklet(blocklet.getBlockletId());	1✔
249	}
250	}	×
251	}	×
252	throw new IOException("Blocklet not found: " + blocklet.toString());	×
253	}
254
255
256	@Override
257	public List<DataMapDistributable> toDistributable(Segment segment) {
258	List<DataMapDistributable> distributables = new ArrayList<>();	×
259	try {
260	Set<TableBlockIndexUniqueIdentifier> tableBlockIndexUniqueIdentifiers =	×
261	getTableBlockIndexUniqueIdentifiers(segment);	×
262	CarbonFile[] carbonIndexFiles = new CarbonFile[tableBlockIndexUniqueIdentifiers.size()];	×
263	int identifierCounter = 0;	×
264	for (TableBlockIndexUniqueIdentifier tableBlockIndexUniqueIdentifier :
265	tableBlockIndexUniqueIdentifiers) {	×
266	String indexFilePath = tableBlockIndexUniqueIdentifier.getIndexFilePath();	×
267	String fileName = tableBlockIndexUniqueIdentifier.getIndexFileName();	×
268	carbonIndexFiles[identifierCounter++] = FileFactory	×
269	.getCarbonFile(indexFilePath + CarbonCommonConstants.FILE_SEPARATOR + fileName);	×
270	}	×
271	for (int i = 0; i < carbonIndexFiles.length; i++) {	×
272	Path path = new Path(carbonIndexFiles[i].getPath());	×
273	FileSystem fs = path.getFileSystem(FileFactory.getConfiguration());	×
274	RemoteIterator<LocatedFileStatus> iter = fs.listLocatedStatus(path);	×
275	LocatedFileStatus fileStatus = iter.next();	×
276	String[] location = fileStatus.getBlockLocations()[0].getHosts();	×
277	BlockletDataMapDistributable distributable =	×
278	new BlockletDataMapDistributable(path.toString());	×
279	distributable.setLocations(location);	×
280	distributables.add(distributable);	×
281	}
282	} catch (IOException e) {	×
283	throw new RuntimeException(e);	×
284	}	×
285	return distributables;	×
286	}
287
288	@Override
289	public void fireEvent(Event event) {
290
291	}	×
292
293	@Override
294	public void clear(Segment segment) {
295	Set<TableBlockIndexUniqueIdentifier> blockIndexes = segmentMap.remove(segment.getSegmentNo());	1✔
296	if (blockIndexes != null) {	1✔
297	for (TableBlockIndexUniqueIdentifier blockIndex : blockIndexes) {	1✔
298	TableBlockIndexUniqueIdentifierWrapper blockIndexWrapper =	1✔
299	new TableBlockIndexUniqueIdentifierWrapper(blockIndex, this.getCarbonTable());	1✔
300	BlockletDataMapIndexWrapper wrapper = cache.getIfPresent(blockIndexWrapper);	1✔
301	if (null != wrapper) {	1✔
302	List<BlockDataMap> dataMaps = wrapper.getDataMaps();	1✔
303	for (DataMap dataMap : dataMaps) {	1✔
304	if (dataMap != null) {	1✔
305	cache.invalidate(blockIndexWrapper);	1✔
306	dataMap.clear();	1✔
307	}
308	}	1✔
309	}
310	}	1✔
311	}
312	}	1✔
313
314	@Override
315	public synchronized void clear() {
316	if (segmentMap.size() > 0) {	1✔
317	for (String segmentId : segmentMap.keySet().toArray(new String[segmentMap.size()])) {	1✔
318	clear(new Segment(segmentId, null, null));	1✔
319	}
320	}
321	}	1✔
322
323	@Override
324	public List<CoarseGrainDataMap> getDataMaps(DataMapDistributable distributable)
325	throws IOException {
326	BlockletDataMapDistributable mapDistributable = (BlockletDataMapDistributable) distributable;	×
327	List<TableBlockIndexUniqueIdentifierWrapper> identifiersWrapper = new ArrayList<>();	×
328	Path indexPath = new Path(mapDistributable.getFilePath());	×
329	String segmentNo = mapDistributable.getSegment().getSegmentNo();	×
330	if (indexPath.getName().endsWith(CarbonTablePath.INDEX_FILE_EXT)) {	×
331	String parent = indexPath.getParent().toString();	×
332	identifiersWrapper.add(new TableBlockIndexUniqueIdentifierWrapper(	×
333	new TableBlockIndexUniqueIdentifier(parent, indexPath.getName(), null, segmentNo),	×
334	this.getCarbonTable()));	×
335	} else if (indexPath.getName().endsWith(CarbonTablePath.MERGE_INDEX_FILE_EXT)) {	×
336	SegmentIndexFileStore fileStore = new SegmentIndexFileStore();	×
337	CarbonFile carbonFile = FileFactory.getCarbonFile(indexPath.toString());	×
338	String parentPath = carbonFile.getParentFile().getAbsolutePath();	×
339	List<String> indexFiles = fileStore.getIndexFilesFromMergeFile(carbonFile.getAbsolutePath());	×
340	for (String indexFile : indexFiles) {	×
341	identifiersWrapper.add(new TableBlockIndexUniqueIdentifierWrapper(	×
342	new TableBlockIndexUniqueIdentifier(parentPath, indexFile, carbonFile.getName(),	×
343	segmentNo), this.getCarbonTable()));	×
344	}	×
345	}
346	List<CoarseGrainDataMap> dataMaps = new ArrayList<>();	×
347	try {
348	List<BlockletDataMapIndexWrapper> wrappers = cache.getAll(identifiersWrapper);	×
349	for (BlockletDataMapIndexWrapper wrapper : wrappers) {	×
350	dataMaps.addAll(wrapper.getDataMaps());	×
351	}	×
352	} catch (IOException e) {	×
353	throw new RuntimeException(e);	×
354	}	×
355	return dataMaps;	×
356	}
357
358	@Override
359	public DataMapMeta getMeta() {
360	// TODO: pass SORT_COLUMNS into this class
361	return null;	×
362	}
363
364	@Override
365	public void deleteDatamapData(Segment segment) throws IOException {
366
367	}	×
368
369	@Override public void deleteDatamapData() {
370
371	}	×
372
373	@Override public SegmentProperties getSegmentProperties(Segment segment) throws IOException {
374	List<CoarseGrainDataMap> dataMaps = getDataMaps(segment);	1✔
375	assert (dataMaps.size() > 0);	1✔
376	CoarseGrainDataMap coarseGrainDataMap = dataMaps.get(0);	1✔
377	assert (coarseGrainDataMap instanceof BlockDataMap);	1✔
378	BlockDataMap dataMap = (BlockDataMap) coarseGrainDataMap;	1✔
379	return dataMap.getSegmentProperties();	1✔
380	}
381
382	@Override public List<Blocklet> getAllBlocklets(Segment segment, List<PartitionSpec> partitions)
383	throws IOException {
384	List<Blocklet> blocklets = new ArrayList<>();	1✔
385	List<CoarseGrainDataMap> dataMaps = getDataMaps(segment);	1✔
386	for (CoarseGrainDataMap dataMap : dataMaps) {	1✔
387	blocklets.addAll(	1✔
388	dataMap.prune((FilterResolverIntf) null, getSegmentProperties(segment), partitions));	1✔
389	}	1✔
390	return blocklets;	1✔
391	}
392
393	@Override public boolean willBecomeStale(TableOperation operation) {
394	return false;	×
395	}
396
397	@Override
398	public void cache(TableBlockIndexUniqueIdentifierWrapper tableBlockIndexUniqueIdentifierWrapper,
399	BlockletDataMapIndexWrapper blockletDataMapIndexWrapper) throws IOException, MemoryException {
400	cache.put(tableBlockIndexUniqueIdentifierWrapper, blockletDataMapIndexWrapper);	2✔
401	}	2✔
402
403	@Override
404	public List<DataMapDistributable> getAllUncachedDistributables(
405	List<DataMapDistributable> distributables) throws IOException {
406	List<DataMapDistributable> distributablesToBeLoaded = new ArrayList<>(distributables.size());	2✔
407	for (DataMapDistributable distributable : distributables) {	2✔
408	Segment segment = distributable.getSegment();	2✔
409	Set<TableBlockIndexUniqueIdentifier> tableBlockIndexUniqueIdentifiers =	2✔
410	getTableBlockIndexUniqueIdentifiers(segment);	2✔
411	// filter out the tableBlockIndexUniqueIdentifiers based on distributable
412	TableBlockIndexUniqueIdentifier validIdentifier = BlockletDataMapUtil	2✔
413	.filterIdentifiersBasedOnDistributable(tableBlockIndexUniqueIdentifiers,	2✔
414	(BlockletDataMapDistributable) distributable);
415	if (null == cache.getIfPresent(	2✔
416	new TableBlockIndexUniqueIdentifierWrapper(validIdentifier, this.getCarbonTable()))) {	2✔
417	((BlockletDataMapDistributable) distributable)	2✔
418	.setTableBlockIndexUniqueIdentifier(validIdentifier);	2✔
419	distributablesToBeLoaded.add(distributable);	2✔
420	}
421	}	2✔
422	return distributablesToBeLoaded;	2✔
423	}
424	}

apache / carbondata / 2686

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