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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.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
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 Log LOG = LogFactory.getLog(BlockletDataMapFactory.class);
  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.commons.logging.Log;
58	import org.apache.commons.logging.LogFactory;
59	import org.apache.hadoop.fs.FileSystem;
60	import org.apache.hadoop.fs.LocatedFileStatus;
61	import org.apache.hadoop.fs.Path;
62	import org.apache.hadoop.fs.RemoteIterator;
63
64	/**
65	* Table map for blocklet
66	*/
67	public class BlockletDataMapFactory extends CoarseGrainDataMapFactory	2✔
68	implements BlockletDetailsFetcher, SegmentPropertiesFetcher, CacheableDataMap {
69
70	private static final Log LOG = LogFactory.getLog(BlockletDataMapFactory.class);	2✔
71	private static final String NAME = "clustered.btree.blocklet";
72	/**
73	* variable for cache level BLOCKLET
74	*/
75	public static final String CACHE_LEVEL_BLOCKLET = "BLOCKLET";
76
77	public static final DataMapSchema DATA_MAP_SCHEMA =	2✔
78	new DataMapSchema(NAME, BlockletDataMapFactory.class.getName());	2✔
79
80	private AbsoluteTableIdentifier identifier;
81
82	// segmentId -> list of index file
83	private Map<String, Set<TableBlockIndexUniqueIdentifier>> segmentMap = new ConcurrentHashMap<>();	2✔
84
85	private Cache<TableBlockIndexUniqueIdentifierWrapper, BlockletDataMapIndexWrapper> cache;
86
87	public BlockletDataMapFactory(CarbonTable carbonTable, DataMapSchema dataMapSchema) {
88	super(carbonTable, dataMapSchema);	2✔
89	this.identifier = carbonTable.getAbsoluteTableIdentifier();	2✔
90	cache = CacheProvider.getInstance()	2✔
91	.createCache(CacheType.DRIVER_BLOCKLET_DATAMAP);	2✔
92	}	2✔
93
94	/**
95	* create dataMap based on cache level
96	*
97	* @param carbonTable
98	* @return
99	*/
100	public static DataMap createDataMap(CarbonTable carbonTable) {
101	boolean cacheLevelBlock = BlockletDataMapUtil.isCacheLevelBlock(carbonTable);	1✔
102	if (cacheLevelBlock) {	1✔
103	// case1: when CACHE_LEVEL = BLOCK
104	return new BlockDataMap();	1✔
105	} else {
106	// case2: when CACHE_LEVEL = BLOCKLET
107	return new BlockletDataMap();	1✔
108	}
109	}
110
111	@Override
112	public DataMapWriter createWriter(Segment segment, String shardName,
113	SegmentProperties segmentProperties) throws IOException {
114	throw new UnsupportedOperationException("not implemented");	×
115	}
116
117	@Override
118	public DataMapBuilder createBuilder(Segment segment, String shardName,
119	SegmentProperties segmentProperties) throws IOException {
120	throw new UnsupportedOperationException("not implemented");	×
121	}
122
123	/**
124	* Get the datamap for all segments
125	*/
126	public Map<Segment, List<CoarseGrainDataMap>> getDataMaps(List<Segment> segments)
127	throws IOException {
128	List<TableBlockIndexUniqueIdentifierWrapper> tableBlockIndexUniqueIdentifierWrappers =	1✔
129	new ArrayList<>();
130	Map<Segment, List<CoarseGrainDataMap>> dataMaps = new HashMap<>();	1✔
131	Map<String, Segment> segmentMap = new HashMap<>();	1✔
132	for (Segment segment : segments) {	1✔
133	segmentMap.put(segment.getSegmentNo(), segment);	1✔
134	Set<TableBlockIndexUniqueIdentifier> identifiers =	1✔
135	getTableBlockIndexUniqueIdentifiers(segment);	1✔
136
137	for (TableBlockIndexUniqueIdentifier tableBlockIndexUniqueIdentifier : identifiers) {	1✔
138	tableBlockIndexUniqueIdentifierWrappers.add(	1✔
139	new TableBlockIndexUniqueIdentifierWrapper(tableBlockIndexUniqueIdentifier,
140	this.getCarbonTable(), segment.getConfiguration()));	1✔
141	}	1✔
142	}	1✔
143	List<BlockletDataMapIndexWrapper> blockletDataMapIndexWrappers =	1✔
144	cache.getAll(tableBlockIndexUniqueIdentifierWrappers);	1✔
145	for (BlockletDataMapIndexWrapper wrapper : blockletDataMapIndexWrappers) {	1✔
146	Segment segment = segmentMap.get(wrapper.getSegmentId());	1✔
147	List<CoarseGrainDataMap> datamapList = dataMaps.get(segment);	1✔
148	if (null == datamapList) {	1✔
149	datamapList = new ArrayList<CoarseGrainDataMap>();	1✔
150	}
151	datamapList.addAll(wrapper.getDataMaps());	1✔
152	dataMaps.put(segment, datamapList);	1✔
153	}	1✔
154	return dataMaps;	1✔
155	}
156
157	@Override public List<CoarseGrainDataMap> getDataMaps(Segment segment) throws IOException {
158	List<CoarseGrainDataMap> dataMaps = new ArrayList<>();	1✔
159	Set<TableBlockIndexUniqueIdentifier> identifiers =	1✔
160	getTableBlockIndexUniqueIdentifiers(segment);	1✔
161	List<TableBlockIndexUniqueIdentifierWrapper> tableBlockIndexUniqueIdentifierWrappers =	1✔
162	new ArrayList<>(identifiers.size());	1✔
163	for (TableBlockIndexUniqueIdentifier tableBlockIndexUniqueIdentifier : identifiers) {	1✔
164	tableBlockIndexUniqueIdentifierWrappers.add(	1✔
165	new TableBlockIndexUniqueIdentifierWrapper(tableBlockIndexUniqueIdentifier,
166	this.getCarbonTable()));	1✔
167	}	1✔
168	List<BlockletDataMapIndexWrapper> blockletDataMapIndexWrappers =	1✔
169	cache.getAll(tableBlockIndexUniqueIdentifierWrappers);	1✔
170	for (BlockletDataMapIndexWrapper wrapper : blockletDataMapIndexWrappers) {	1✔
171	dataMaps.addAll(wrapper.getDataMaps());	1✔
172	}	1✔
173	return dataMaps;	1✔
174	}
175
176	private Set<TableBlockIndexUniqueIdentifier> getTableBlockIndexUniqueIdentifiers(Segment segment)
177	throws IOException {
178	Set<TableBlockIndexUniqueIdentifier> tableBlockIndexUniqueIdentifiers =	1✔
179	segmentMap.get(segment.getSegmentNo());	1✔
180	if (tableBlockIndexUniqueIdentifiers == null) {	1✔
181	tableBlockIndexUniqueIdentifiers =	1✔
182	BlockletDataMapUtil.getTableBlockUniqueIdentifiers(segment);	1✔
183	if (tableBlockIndexUniqueIdentifiers.size() > 0) {	1✔
184	segmentMap.put(segment.getSegmentNo(), tableBlockIndexUniqueIdentifiers);	1✔
185	}
186	}
187	return tableBlockIndexUniqueIdentifiers;	1✔
188	}
189
190	/**
191	* Get the blocklet detail information based on blockletid, blockid and segmentid. This method is
192	* exclusively for BlockletDataMapFactory as detail information is only available in this
193	* default datamap.
194	*/
195	@Override
196	public List<ExtendedBlocklet> getExtendedBlocklets(List<Blocklet> blocklets, Segment segment)
197	throws IOException {
198	List<ExtendedBlocklet> detailedBlocklets = new ArrayList<>();	1✔
199	// If it is already detailed blocklet then type cast and return same
200	if (blocklets.size() > 0 && blocklets.get(0) instanceof ExtendedBlocklet) {	1✔
201	for (Blocklet blocklet : blocklets) {	1✔
202	detailedBlocklets.add((ExtendedBlocklet) blocklet);	1✔
203	}	1✔
204	return detailedBlocklets;	1✔
205	}
206	Set<TableBlockIndexUniqueIdentifier> identifiers =	1✔
207	getTableBlockIndexUniqueIdentifiers(segment);	1✔
208	Set<TableBlockIndexUniqueIdentifierWrapper> tableBlockIndexUniqueIdentifierWrappers =	1✔
209	new HashSet<>(identifiers.size());	1✔
210	for (TableBlockIndexUniqueIdentifier tableBlockIndexUniqueIdentifier : identifiers) {	1✔
211	tableBlockIndexUniqueIdentifierWrappers.add(	1✔
212	new TableBlockIndexUniqueIdentifierWrapper(tableBlockIndexUniqueIdentifier,
213	this.getCarbonTable()));	1✔
214	}	1✔
215	// Retrieve each blocklets detail information from blocklet datamap
216	for (Blocklet blocklet : blocklets) {	1✔
217	detailedBlocklets.add(getExtendedBlocklet(tableBlockIndexUniqueIdentifierWrappers, blocklet));	1✔
218	}	1✔
219	return detailedBlocklets;	1✔
220	}
221
222	@Override
223	public ExtendedBlocklet getExtendedBlocklet(Blocklet blocklet, Segment segment)
224	throws IOException {
225	if (blocklet instanceof ExtendedBlocklet) {	1✔
226	return (ExtendedBlocklet) blocklet;	×
227	}
228	Set<TableBlockIndexUniqueIdentifier> identifiers =	1✔
229	getTableBlockIndexUniqueIdentifiers(segment);	1✔
230
231	Set<TableBlockIndexUniqueIdentifierWrapper> tableBlockIndexUniqueIdentifierWrappers =	1✔
232	new HashSet<>(identifiers.size());	1✔
233	for (TableBlockIndexUniqueIdentifier tableBlockIndexUniqueIdentifier : identifiers) {	1✔
234	tableBlockIndexUniqueIdentifierWrappers.add(	1✔
235	new TableBlockIndexUniqueIdentifierWrapper(tableBlockIndexUniqueIdentifier,
236	this.getCarbonTable()));	1✔
237	}	1✔
238	return getExtendedBlocklet(tableBlockIndexUniqueIdentifierWrappers, blocklet);	1✔
239	}
240
241	private ExtendedBlocklet getExtendedBlocklet(
242	Set<TableBlockIndexUniqueIdentifierWrapper> identifiersWrapper, Blocklet blocklet)
243	throws IOException {
244	for (TableBlockIndexUniqueIdentifierWrapper identifierWrapper : identifiersWrapper) {	1✔
245	BlockletDataMapIndexWrapper wrapper = cache.get(identifierWrapper);	1✔
246	List<BlockDataMap> dataMaps = wrapper.getDataMaps();	1✔
247	for (DataMap dataMap : dataMaps) {	1✔
248	if (((BlockDataMap) dataMap)	1✔
249	.getTableTaskInfo(BlockletDataMapRowIndexes.SUMMARY_INDEX_FILE_NAME)	1✔
250	.startsWith(blocklet.getFilePath())) {	1✔
251	return ((BlockDataMap) dataMap).getDetailedBlocklet(blocklet.getBlockletId());	1✔
252	}
253	}	×
254	}	×
255	throw new IOException("Blocklet not found: " + blocklet.toString());	×
256	}
257
258
259	@Override
260	public List<DataMapDistributable> toDistributable(Segment segment) {
261	List<DataMapDistributable> distributables = new ArrayList<>();	×
262	try {
263	Set<TableBlockIndexUniqueIdentifier> tableBlockIndexUniqueIdentifiers =	×
264	getTableBlockIndexUniqueIdentifiers(segment);	×
265	CarbonFile[] carbonIndexFiles = new CarbonFile[tableBlockIndexUniqueIdentifiers.size()];	×
266	int identifierCounter = 0;	×
267	for (TableBlockIndexUniqueIdentifier tableBlockIndexUniqueIdentifier :
268	tableBlockIndexUniqueIdentifiers) {	×
269	String indexFilePath = tableBlockIndexUniqueIdentifier.getIndexFilePath();	×
270	String fileName = tableBlockIndexUniqueIdentifier.getIndexFileName();	×
271	carbonIndexFiles[identifierCounter++] = FileFactory	×
272	.getCarbonFile(indexFilePath + CarbonCommonConstants.FILE_SEPARATOR + fileName);	×
273	}	×
274	for (int i = 0; i < carbonIndexFiles.length; i++) {	×
275	Path path = new Path(carbonIndexFiles[i].getPath());	×
276	FileSystem fs = path.getFileSystem(FileFactory.getConfiguration());	×
277	RemoteIterator<LocatedFileStatus> iter = fs.listLocatedStatus(path);	×
278	LocatedFileStatus fileStatus = iter.next();	×
279	String[] location = fileStatus.getBlockLocations()[0].getHosts();	×
280	BlockletDataMapDistributable distributable =	×
281	new BlockletDataMapDistributable(path.toString());	×
282	distributable.setLocations(location);	×
283	distributables.add(distributable);	×
284	}
285	} catch (IOException e) {	×
286	throw new RuntimeException(e);	×
287	}	×
288	return distributables;	×
289	}
290
291	@Override
292	public void fireEvent(Event event) {
293
294	}	×
295
296	@Override
297	public void clear(Segment segment) {
298	Set<TableBlockIndexUniqueIdentifier> blockIndexes = segmentMap.remove(segment.getSegmentNo());	1✔
299	if (blockIndexes != null) {	1✔
300	for (TableBlockIndexUniqueIdentifier blockIndex : blockIndexes) {	1✔
301	TableBlockIndexUniqueIdentifierWrapper blockIndexWrapper =	1✔
302	new TableBlockIndexUniqueIdentifierWrapper(blockIndex, this.getCarbonTable());	1✔
303	BlockletDataMapIndexWrapper wrapper = cache.getIfPresent(blockIndexWrapper);	1✔
304	if (null != wrapper) {	1✔
305	List<BlockDataMap> dataMaps = wrapper.getDataMaps();	1✔
306	for (DataMap dataMap : dataMaps) {	1✔
307	if (dataMap != null) {	1✔
308	cache.invalidate(blockIndexWrapper);	1✔
309	dataMap.clear();	1✔
310	}
311	}	1✔
312	}
313	}	1✔
314	}
315	}	1✔
316
317	@Override
318	public synchronized void clear() {
319	if (segmentMap.size() > 0) {	1✔
320	for (String segmentId : segmentMap.keySet().toArray(new String[segmentMap.size()])) {	1✔
321	clear(new Segment(segmentId, null, null));	1✔
322	}
323	}
324	}	1✔
325
326	@Override
327	public List<CoarseGrainDataMap> getDataMaps(DataMapDistributable distributable)
328	throws IOException {
329	BlockletDataMapDistributable mapDistributable = (BlockletDataMapDistributable) distributable;	×
330	List<TableBlockIndexUniqueIdentifierWrapper> identifiersWrapper = new ArrayList<>();	×
331	Path indexPath = new Path(mapDistributable.getFilePath());	×
332	String segmentNo = mapDistributable.getSegment().getSegmentNo();	×
333	if (indexPath.getName().endsWith(CarbonTablePath.INDEX_FILE_EXT)) {	×
334	String parent = indexPath.getParent().toString();	×
335	identifiersWrapper.add(new TableBlockIndexUniqueIdentifierWrapper(	×
336	new TableBlockIndexUniqueIdentifier(parent, indexPath.getName(), null, segmentNo),	×
337	this.getCarbonTable()));	×
338	} else if (indexPath.getName().endsWith(CarbonTablePath.MERGE_INDEX_FILE_EXT)) {	×
339	SegmentIndexFileStore fileStore = new SegmentIndexFileStore();	×
340	CarbonFile carbonFile = FileFactory.getCarbonFile(indexPath.toString());	×
341	String parentPath = carbonFile.getParentFile().getAbsolutePath();	×
342	List<String> indexFiles = fileStore.getIndexFilesFromMergeFile(carbonFile.getAbsolutePath());	×
343	for (String indexFile : indexFiles) {	×
344	identifiersWrapper.add(new TableBlockIndexUniqueIdentifierWrapper(	×
345	new TableBlockIndexUniqueIdentifier(parentPath, indexFile, carbonFile.getName(),	×
346	segmentNo), this.getCarbonTable()));	×
347	}	×
348	}
349	List<CoarseGrainDataMap> dataMaps = new ArrayList<>();	×
350	try {
351	List<BlockletDataMapIndexWrapper> wrappers = cache.getAll(identifiersWrapper);	×
352	for (BlockletDataMapIndexWrapper wrapper : wrappers) {	×
353	dataMaps.addAll(wrapper.getDataMaps());	×
354	}	×
355	} catch (IOException e) {	×
356	throw new RuntimeException(e);	×
357	}	×
358	return dataMaps;	×
359	}
360
361	@Override
362	public DataMapMeta getMeta() {
363	// TODO: pass SORT_COLUMNS into this class
364	return null;	×
365	}
366
367	@Override
368	public void deleteDatamapData(Segment segment) throws IOException {
369
370	}	×
371
372	@Override public void deleteDatamapData() {
373
374	}	×
375
376	@Override public SegmentProperties getSegmentProperties(Segment segment) throws IOException {
377	List<CoarseGrainDataMap> dataMaps = getDataMaps(segment);	1✔
378	assert (dataMaps.size() > 0);	1✔
379	CoarseGrainDataMap coarseGrainDataMap = dataMaps.get(0);	1✔
380	assert (coarseGrainDataMap instanceof BlockDataMap);	1✔
381	BlockDataMap dataMap = (BlockDataMap) coarseGrainDataMap;	1✔
382	return dataMap.getSegmentProperties();	1✔
383	}
384
385	@Override public List<Blocklet> getAllBlocklets(Segment segment, List<PartitionSpec> partitions)
386	throws IOException {
387	List<Blocklet> blocklets = new ArrayList<>();	1✔
388	List<CoarseGrainDataMap> dataMaps = getDataMaps(segment);	1✔
389	for (CoarseGrainDataMap dataMap : dataMaps) {	1✔
390	blocklets.addAll(	1✔
391	dataMap.prune((FilterResolverIntf) null, getSegmentProperties(segment), partitions));	1✔
392	}	1✔
393	return blocklets;	1✔
394	}
395
396	@Override public boolean willBecomeStale(TableOperation operation) {
397	return false;	×
398	}
399
400	@Override
401	public void cache(TableBlockIndexUniqueIdentifierWrapper tableBlockIndexUniqueIdentifierWrapper,
402	BlockletDataMapIndexWrapper blockletDataMapIndexWrapper) throws IOException, MemoryException {
403	cache.put(tableBlockIndexUniqueIdentifierWrapper, blockletDataMapIndexWrapper);	2✔
404	}	2✔
405
406	@Override
407	public List<DataMapDistributable> getAllUncachedDistributables(
408	List<DataMapDistributable> distributables) throws IOException {
409	List<DataMapDistributable> distributablesToBeLoaded = new ArrayList<>(distributables.size());	2✔
410	for (DataMapDistributable distributable : distributables) {	2✔
411	Segment segment = distributable.getSegment();	2✔
412	Set<TableBlockIndexUniqueIdentifier> tableBlockIndexUniqueIdentifiers =	2✔
413	getTableBlockIndexUniqueIdentifiers(segment);	2✔
414	// filter out the tableBlockIndexUniqueIdentifiers based on distributable
415	TableBlockIndexUniqueIdentifier validIdentifier = BlockletDataMapUtil	2✔
416	.filterIdentifiersBasedOnDistributable(tableBlockIndexUniqueIdentifiers,	2✔
417	(BlockletDataMapDistributable) distributable);
418	if (null == cache.getIfPresent(	2✔
419	new TableBlockIndexUniqueIdentifierWrapper(validIdentifier, this.getCarbonTable()))) {	2✔
420	((BlockletDataMapDistributable) distributable)	2✔
421	.setTableBlockIndexUniqueIdentifier(validIdentifier);	2✔
422	distributablesToBeLoaded.add(distributable);	2✔
423	}
424	}	2✔
425	return distributablesToBeLoaded;	2✔
426	}
427	}

apache / carbondata / 9585

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