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/datamap/bloom/src/main/java/org/apache/carbondata/datamap/bloom/BloomCoarseGrainDataMapFactory.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.datamap.bloom;

import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;

import org.apache.carbondata.common.annotations.InterfaceAudience;
import org.apache.carbondata.common.exceptions.sql.MalformedDataMapCommandException;
import org.apache.carbondata.common.logging.LogServiceFactory;
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.CarbonV3DataFormatConstants;
import org.apache.carbondata.core.datamap.DataMapDistributable;
import org.apache.carbondata.core.datamap.DataMapLevel;
import org.apache.carbondata.core.datamap.DataMapMeta;
import org.apache.carbondata.core.datamap.Segment;
import org.apache.carbondata.core.datamap.dev.DataMapBuilder;
import org.apache.carbondata.core.datamap.dev.DataMapFactory;
import org.apache.carbondata.core.datamap.dev.DataMapWriter;
import org.apache.carbondata.core.datamap.dev.cgdatamap.CoarseGrainDataMap;
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.metadata.schema.table.CarbonTable;
import org.apache.carbondata.core.metadata.schema.table.DataMapSchema;
import org.apache.carbondata.core.metadata.schema.table.column.CarbonColumn;
import org.apache.carbondata.core.scan.filter.intf.ExpressionType;
import org.apache.carbondata.core.statusmanager.SegmentStatusManager;
import org.apache.carbondata.core.util.CarbonUtil;
import org.apache.carbondata.core.util.path.CarbonTablePath;
import org.apache.carbondata.events.Event;

import org.apache.commons.lang3.StringUtils;
import org.apache.log4j.Logger;

/**
 * This class is for Bloom Filter for blocklet level
 */
@InterfaceAudience.Internal
public class BloomCoarseGrainDataMapFactory extends DataMapFactory<CoarseGrainDataMap> {
  private static final Logger LOGGER = LogServiceFactory.getLogService(
      BloomCoarseGrainDataMapFactory.class.getName());
  /**
   * property for size of bloom filter
   */
  private static final String BLOOM_SIZE = "bloom_size";
  /**
   * default size for bloom filter, cardinality of the column.
   */
  private static final int DEFAULT_BLOOM_FILTER_SIZE =
      CarbonV3DataFormatConstants.NUMBER_OF_ROWS_PER_BLOCKLET_COLUMN_PAGE_DEFAULT * 20;
  /**
   * property for fpp(false-positive-probability) of bloom filter
   */
  private static final String BLOOM_FPP = "bloom_fpp";
  /**
   * default value for fpp of bloom filter is 0.001%
   */
  private static final double DEFAULT_BLOOM_FILTER_FPP = 0.00001d;

  /**
   * property for compressing bloom while saving to disk.
   */
  private static final String COMPRESS_BLOOM = "bloom_compress";
  /**
   * Default value of compressing bloom while save to disk.
   */
  private static final boolean DEFAULT_BLOOM_COMPRESS = true;

  private DataMapMeta dataMapMeta;
  private String dataMapName;
  private int bloomFilterSize;
  private double bloomFilterFpp;
  private boolean bloomCompress;
  private Cache<BloomCacheKeyValue.CacheKey, BloomCacheKeyValue.CacheValue> cache;
  // segmentId -> list of index file
  private Map<String, Set<String>> segmentMap = new ConcurrentHashMap<>();

  public BloomCoarseGrainDataMapFactory(CarbonTable carbonTable, DataMapSchema dataMapSchema)
      throws MalformedDataMapCommandException {
    super(carbonTable, dataMapSchema);
    Objects.requireNonNull(carbonTable);
    Objects.requireNonNull(dataMapSchema);

    this.dataMapName = dataMapSchema.getDataMapName();

    List<CarbonColumn> indexedColumns = carbonTable.getIndexedColumns(dataMapSchema);
    this.bloomFilterSize = validateAndGetBloomFilterSize(dataMapSchema);
    this.bloomFilterFpp = validateAndGetBloomFilterFpp(dataMapSchema);
    this.bloomCompress = validateAndGetBloomCompress(dataMapSchema);
    List<ExpressionType> optimizedOperations = new ArrayList<ExpressionType>();
    // todo: support more optimize operations
    optimizedOperations.add(ExpressionType.EQUALS);
    optimizedOperations.add(ExpressionType.IN);
    this.dataMapMeta = new DataMapMeta(this.dataMapName, indexedColumns, optimizedOperations);
    LOGGER.info(String.format("DataMap %s works for %s with bloom size %d",
        this.dataMapName, this.dataMapMeta, this.bloomFilterSize));
    try {
      this.cache = CacheProvider.getInstance()
          .createCache(new CacheType("bloom_cache"), BloomDataMapCache.class.getName());
    } catch (Exception e) {
      LOGGER.error(e.getMessage(), e);
      throw new MalformedDataMapCommandException(e.getMessage());
    }
  }

  /**
   * validate Lucene DataMap BLOOM_SIZE
   * 1. BLOOM_SIZE property is optional, 32000 * 20 will be the default size.
   * 2. BLOOM_SIZE should be an integer that greater than 0
   */
  private int validateAndGetBloomFilterSize(DataMapSchema dmSchema)
      throws MalformedDataMapCommandException {
    String bloomFilterSizeStr = dmSchema.getProperties().get(BLOOM_SIZE);
    if (StringUtils.isBlank(bloomFilterSizeStr)) {
      LOGGER.warn(
          String.format("Bloom filter size is not configured for datamap %s, use default value %d",
              dataMapName, DEFAULT_BLOOM_FILTER_SIZE));
      return DEFAULT_BLOOM_FILTER_SIZE;
    }
    int bloomFilterSize;
    try {
      bloomFilterSize = Integer.parseInt(bloomFilterSizeStr);
    } catch (NumberFormatException e) {
      throw new MalformedDataMapCommandException(
          String.format("Invalid value of bloom filter size '%s', it should be an integer",
              bloomFilterSizeStr));
    }
    // todo: reconsider the boundaries of bloom filter size
    if (bloomFilterSize <= 0) {
      throw new MalformedDataMapCommandException(
          String.format("Invalid value of bloom filter size '%s', it should be greater than 0",
              bloomFilterSizeStr));
    }
    return bloomFilterSize;
  }

  /**
   * validate bloom DataMap BLOOM_FPP
   * 1. BLOOM_FPP property is optional, 0.00001 will be the default value.
   * 2. BLOOM_FPP should be (0, 1)
   */
  private double validateAndGetBloomFilterFpp(DataMapSchema dmSchema)
      throws MalformedDataMapCommandException {
    String bloomFilterFppStr = dmSchema.getProperties().get(BLOOM_FPP);
    if (StringUtils.isBlank(bloomFilterFppStr)) {
      LOGGER.warn(
          String.format("Bloom filter FPP is not configured for datamap %s, use default value %f",
              dataMapName, DEFAULT_BLOOM_FILTER_FPP));
      return DEFAULT_BLOOM_FILTER_FPP;
    }
    double bloomFilterFpp;
    try {
      bloomFilterFpp = Double.parseDouble(bloomFilterFppStr);
    } catch (NumberFormatException e) {
      throw new MalformedDataMapCommandException(
          String.format("Invalid value of bloom filter fpp '%s', it should be an numeric",
              bloomFilterFppStr));
    }
    if (bloomFilterFpp < 0 || bloomFilterFpp - 1 >= 0) {
      throw new MalformedDataMapCommandException(
          String.format("Invalid value of bloom filter fpp '%s', it should be in range 0~1",
              bloomFilterFppStr));
    }
    return bloomFilterFpp;
  }

  /**
   * validate bloom DataMap COMPRESS_BLOOM
   * Default value is true
   */
  private boolean validateAndGetBloomCompress(DataMapSchema dmSchema) {
    String bloomCompress = dmSchema.getProperties().get(COMPRESS_BLOOM);
    if (StringUtils.isBlank(bloomCompress)) {
      LOGGER.warn(
          String.format("Bloom compress is not configured for datamap %s, use default value %b",
              dataMapName, DEFAULT_BLOOM_COMPRESS));
      return DEFAULT_BLOOM_COMPRESS;
    }
    return Boolean.parseBoolean(bloomCompress);
  }

  @Override
  public DataMapWriter createWriter(Segment segment, String shardName,
      SegmentProperties segmentProperties) throws IOException {
    LOGGER.info(
        String.format("Data of BloomCoarseGranDataMap %s for table %s will be written to %s",
            this.dataMapName, getCarbonTable().getTableName() , shardName));
    return new BloomDataMapWriter(getCarbonTable().getTablePath(), this.dataMapName,
        this.dataMapMeta.getIndexedColumns(), segment, shardName, segmentProperties,
        this.bloomFilterSize, this.bloomFilterFpp, bloomCompress);
  }

  @Override
  public DataMapBuilder createBuilder(Segment segment, String shardName,
      SegmentProperties segmentProperties) throws IOException {
    return new BloomDataMapBuilder(getCarbonTable().getTablePath(), this.dataMapName,
        this.dataMapMeta.getIndexedColumns(), segment, shardName, segmentProperties,
        this.bloomFilterSize, this.bloomFilterFpp, bloomCompress);
  }

  /**
   * returns all shard directories of bloom index files for query
   * if bloom index files are merged we should get only one shard path
   */
  private Set<String> getAllShardPaths(String tablePath, String segmentId) {
    String dataMapStorePath = CarbonTablePath.getDataMapStorePath(
        tablePath, segmentId, dataMapName);
    CarbonFile[] carbonFiles = FileFactory.getCarbonFile(dataMapStorePath).listFiles();
    Set<String> shardPaths = new HashSet<>();
    boolean mergeShardInprogress = false;
    CarbonFile mergeShardFile = null;
    for (CarbonFile carbonFile : carbonFiles) {
      if (carbonFile.getName().equals(BloomIndexFileStore.MERGE_BLOOM_INDEX_SHARD_NAME)) {
        mergeShardFile = carbonFile;
      } else if (carbonFile.getName().equals(BloomIndexFileStore.MERGE_INPROGRESS_FILE)) {
        mergeShardInprogress = true;
      } else if (carbonFile.isDirectory()) {
        shardPaths.add(FileFactory.getPath(carbonFile.getAbsolutePath()).toString());
      }
    }
    if (mergeShardFile != null && !mergeShardInprogress) {
      // should only get one shard path if mergeShard is generated successfully
      shardPaths.clear();
      shardPaths.add(FileFactory.getPath(mergeShardFile.getAbsolutePath()).toString());
    }
    return shardPaths;
  }

  @Override
  public List<CoarseGrainDataMap> getDataMaps(Segment segment) throws IOException {
    List<CoarseGrainDataMap> dataMaps = new ArrayList<>();
    try {
      Set<String> shardPaths = segmentMap.get(segment.getSegmentNo());
      if (shardPaths == null) {
        shardPaths = getAllShardPaths(getCarbonTable().getTablePath(), segment.getSegmentNo());
        segmentMap.put(segment.getSegmentNo(), shardPaths);
      }
      Set<String> filteredShards = segment.getFilteredIndexShardNames();
      for (String shard : shardPaths) {
        if (shard.endsWith(BloomIndexFileStore.MERGE_BLOOM_INDEX_SHARD_NAME) ||
            filteredShards.contains(new File(shard).getName())) {
          // Filter out the tasks which are filtered through Main datamap.
          // for merge shard, shard pruning delay to be done before pruning blocklet
          BloomCoarseGrainDataMap bloomDM = new BloomCoarseGrainDataMap();
          bloomDM.init(new BloomDataMapModel(shard, cache, segment.getConfiguration()));
          bloomDM.initIndexColumnConverters(getCarbonTable(), dataMapMeta.getIndexedColumns());
          bloomDM.setFilteredShard(filteredShards);
          dataMaps.add(bloomDM);
        }
      }
    } catch (Exception e) {
      throw new IOException("Error occurs while init Bloom DataMap", e);
    }
    return dataMaps;
  }

  @Override
  public List<CoarseGrainDataMap> getDataMaps(DataMapDistributable distributable)
      throws IOException {
    List<CoarseGrainDataMap> dataMaps = new ArrayList<>();
    String indexPath = ((BloomDataMapDistributable) distributable).getIndexPath();
    Set<String> filteredShards = ((BloomDataMapDistributable) distributable).getFilteredShards();
    BloomCoarseGrainDataMap bloomDM = new BloomCoarseGrainDataMap();
    bloomDM.init(new BloomDataMapModel(indexPath, cache, FileFactory.getConfiguration()));
    bloomDM.initIndexColumnConverters(getCarbonTable(), dataMapMeta.getIndexedColumns());
    bloomDM.setFilteredShard(filteredShards);
    dataMaps.add(bloomDM);
    return dataMaps;
  }


  @Override
  public List<DataMapDistributable> toDistributable(Segment segment) {
    List<DataMapDistributable> dataMapDistributableList = new ArrayList<>();
    Set<String> shardPaths = segmentMap.get(segment.getSegmentNo());
    if (shardPaths == null) {
      shardPaths = getAllShardPaths(getCarbonTable().getTablePath(), segment.getSegmentNo());
      segmentMap.put(segment.getSegmentNo(), shardPaths);
    }
    Set<String> filteredShards = segment.getFilteredIndexShardNames();
    for (String shardPath : shardPaths) {
      // Filter out the tasks which are filtered through Main datamap.
      // for merge shard, shard pruning delay to be done before pruning blocklet
      if (shardPath.endsWith(BloomIndexFileStore.MERGE_BLOOM_INDEX_SHARD_NAME) ||
          filteredShards.contains(new File(shardPath).getName())) {
        DataMapDistributable bloomDataMapDistributable =
            new BloomDataMapDistributable(shardPath, filteredShards);
        dataMapDistributableList.add(bloomDataMapDistributable);
      }
    }
    return dataMapDistributableList;
  }

  @Override
  public void fireEvent(Event event) {

  }

  @Override
  public void clear(Segment segment) {
    Set<String> shards = segmentMap.remove(segment.getSegmentNo());
    if (shards != null) {
      for (String shard : shards) {
        for (CarbonColumn carbonColumn : dataMapMeta.getIndexedColumns()) {
          cache.invalidate(new BloomCacheKeyValue.CacheKey(shard, carbonColumn.getColName()));
        }
      }
    }
  }

  @Override
  public synchronized void clear() {
    if (segmentMap.size() > 0) {
      List<String> segments = new ArrayList<>(segmentMap.keySet());
      for (String segmentId : segments) {
        clear(new Segment(segmentId, null, null));
      }
    }
  }

  @Override
  public void deleteDatamapData(Segment segment) throws IOException {
    try {
      String segmentId = segment.getSegmentNo();
      String datamapPath = CarbonTablePath
          .getDataMapStorePath(getCarbonTable().getTablePath(), segmentId, dataMapName);
      if (FileFactory.isFileExist(datamapPath)) {
        CarbonFile file = FileFactory.getCarbonFile(datamapPath,
            FileFactory.getFileType(datamapPath));
        CarbonUtil.deleteFoldersAndFilesSilent(file);
      }
      clear(segment);
    } catch (InterruptedException ex) {
      throw new IOException("Failed to delete datamap for segment_" + segment.getSegmentNo());
    }
  }

  @Override
  public void deleteDatamapData() {
    SegmentStatusManager ssm =
        new SegmentStatusManager(getCarbonTable().getAbsoluteTableIdentifier());
    try {
      List<Segment> validSegments = ssm.getValidAndInvalidSegments().getValidSegments();
      for (Segment segment : validSegments) {
        deleteDatamapData(segment);
      }
    } catch (IOException e) {
      LOGGER.error("drop datamap failed, failed to delete datamap directory");
    }
  }

  @Override
  public boolean willBecomeStale(TableOperation operation) {
    switch (operation) {
      case ALTER_RENAME:
        return false;
      case ALTER_DROP:
        return true;
      case ALTER_ADD_COLUMN:
        return false;
      case ALTER_CHANGE_DATATYPE:
        return true;
      case ALTER_COLUMN_RENAME:
        return true;
      case STREAMING:
        return false;
      case DELETE:
        return true;
      case UPDATE:
        return true;
      case PARTITION:
        return true;
      default:
        return false;
    }
  }

  @Override
  public boolean isOperationBlocked(TableOperation operation, Object... targets) {
    switch (operation) {
      case ALTER_DROP: {
        // alter table drop columns
        // will be blocked if the columns in bloomfilter datamap
        List<String> columnsToDrop = (List<String>) targets[0];
        List<String> indexedColumnNames = dataMapMeta.getIndexedColumnNames();
        for (String indexedcolumn : indexedColumnNames) {
          for (String column : columnsToDrop) {
            if (column.equalsIgnoreCase(indexedcolumn)) {
              return true;
            }
          }
        }
        return false;
      }
      case ALTER_CHANGE_DATATYPE:
      case ALTER_COLUMN_RENAME: {
        // alter table change one column datatype, or rename
        // will be blocked if the column in bloomfilter datamap
        String columnToChangeDatatype = (String) targets[0];
        List<String> indexedColumnNames = dataMapMeta.getIndexedColumnNames();
        for (String indexedcolumn : indexedColumnNames) {
          if (indexedcolumn.equalsIgnoreCase(columnToChangeDatatype)) {
            return true;
          }
        }
        return false;
      }
      default:
        return false;
    }
  }

  @Override
  public DataMapMeta getMeta() {
    return this.dataMapMeta;
  }

  @Override
  public DataMapLevel getDataMapLevel() {
    return DataMapLevel.CG;
  }
}

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.datamap.bloom;
18
19	import java.io.File;
20	import java.io.IOException;
21	import java.util.ArrayList;
22	import java.util.HashSet;
23	import java.util.List;
24	import java.util.Map;
25	import java.util.Objects;
26	import java.util.Set;
27	import java.util.concurrent.ConcurrentHashMap;
28
29	import org.apache.carbondata.common.annotations.InterfaceAudience;
30	import org.apache.carbondata.common.exceptions.sql.MalformedDataMapCommandException;
31	import org.apache.carbondata.common.logging.LogServiceFactory;
32	import org.apache.carbondata.core.cache.Cache;
33	import org.apache.carbondata.core.cache.CacheProvider;
34	import org.apache.carbondata.core.cache.CacheType;
35	import org.apache.carbondata.core.constants.CarbonV3DataFormatConstants;
36	import org.apache.carbondata.core.datamap.DataMapDistributable;
37	import org.apache.carbondata.core.datamap.DataMapLevel;
38	import org.apache.carbondata.core.datamap.DataMapMeta;
39	import org.apache.carbondata.core.datamap.Segment;
40	import org.apache.carbondata.core.datamap.dev.DataMapBuilder;
41	import org.apache.carbondata.core.datamap.dev.DataMapFactory;
42	import org.apache.carbondata.core.datamap.dev.DataMapWriter;
43	import org.apache.carbondata.core.datamap.dev.cgdatamap.CoarseGrainDataMap;
44	import org.apache.carbondata.core.datastore.block.SegmentProperties;
45	import org.apache.carbondata.core.datastore.filesystem.CarbonFile;
46	import org.apache.carbondata.core.datastore.impl.FileFactory;
47	import org.apache.carbondata.core.features.TableOperation;
48	import org.apache.carbondata.core.metadata.schema.table.CarbonTable;
49	import org.apache.carbondata.core.metadata.schema.table.DataMapSchema;
50	import org.apache.carbondata.core.metadata.schema.table.column.CarbonColumn;
51	import org.apache.carbondata.core.scan.filter.intf.ExpressionType;
52	import org.apache.carbondata.core.statusmanager.SegmentStatusManager;
53	import org.apache.carbondata.core.util.CarbonUtil;
54	import org.apache.carbondata.core.util.path.CarbonTablePath;
55	import org.apache.carbondata.events.Event;
56
57	import org.apache.commons.lang3.StringUtils;
58	import org.apache.log4j.Logger;
59
60	/**
61	* This class is for Bloom Filter for blocklet level
62	*/
63	@InterfaceAudience.Internal
64	public class BloomCoarseGrainDataMapFactory extends DataMapFactory<CoarseGrainDataMap> {
65	private static final Logger LOGGER = LogServiceFactory.getLogService(	1✔
66	BloomCoarseGrainDataMapFactory.class.getName());	1✔
67	/**
68	* property for size of bloom filter
69	*/
70	private static final String BLOOM_SIZE = "bloom_size";
71	/**
72	* default size for bloom filter, cardinality of the column.
73	*/
74	private static final int DEFAULT_BLOOM_FILTER_SIZE =
75	CarbonV3DataFormatConstants.NUMBER_OF_ROWS_PER_BLOCKLET_COLUMN_PAGE_DEFAULT * 20;
76	/**
77	* property for fpp(false-positive-probability) of bloom filter
78	*/
79	private static final String BLOOM_FPP = "bloom_fpp";
80	/**
81	* default value for fpp of bloom filter is 0.001%
82	*/
83	private static final double DEFAULT_BLOOM_FILTER_FPP = 0.00001d;
84
85	/**
86	* property for compressing bloom while saving to disk.
87	*/
88	private static final String COMPRESS_BLOOM = "bloom_compress";
89	/**
90	* Default value of compressing bloom while save to disk.
91	*/
92	private static final boolean DEFAULT_BLOOM_COMPRESS = true;
93
94	private DataMapMeta dataMapMeta;
95	private String dataMapName;
96	private int bloomFilterSize;
97	private double bloomFilterFpp;
98	private boolean bloomCompress;
99	private Cache<BloomCacheKeyValue.CacheKey, BloomCacheKeyValue.CacheValue> cache;
100	// segmentId -> list of index file
101	private Map<String, Set<String>> segmentMap = new ConcurrentHashMap<>();	1✔
102
103	public BloomCoarseGrainDataMapFactory(CarbonTable carbonTable, DataMapSchema dataMapSchema)
104	throws MalformedDataMapCommandException {
105	super(carbonTable, dataMapSchema);	1✔
106	Objects.requireNonNull(carbonTable);	1✔
107	Objects.requireNonNull(dataMapSchema);	1✔
108
109	this.dataMapName = dataMapSchema.getDataMapName();	1✔
110
111	List<CarbonColumn> indexedColumns = carbonTable.getIndexedColumns(dataMapSchema);	1✔
112	this.bloomFilterSize = validateAndGetBloomFilterSize(dataMapSchema);	1✔
113	this.bloomFilterFpp = validateAndGetBloomFilterFpp(dataMapSchema);	1✔
114	this.bloomCompress = validateAndGetBloomCompress(dataMapSchema);	1✔
115	List<ExpressionType> optimizedOperations = new ArrayList<ExpressionType>();	1✔
116	// todo: support more optimize operations
117	optimizedOperations.add(ExpressionType.EQUALS);	1✔
118	optimizedOperations.add(ExpressionType.IN);	1✔
119	this.dataMapMeta = new DataMapMeta(this.dataMapName, indexedColumns, optimizedOperations);	1✔
120	LOGGER.info(String.format("DataMap %s works for %s with bloom size %d",	1✔
121	this.dataMapName, this.dataMapMeta, this.bloomFilterSize));	1✔
122	try {
123	this.cache = CacheProvider.getInstance()	1✔
124	.createCache(new CacheType("bloom_cache"), BloomDataMapCache.class.getName());	1✔
125	} catch (Exception e) {	×
126	LOGGER.error(e.getMessage(), e);	×
127	throw new MalformedDataMapCommandException(e.getMessage());	×
128	}	1✔
129	}	1✔
130
131	/**
132	* validate Lucene DataMap BLOOM_SIZE
133	* 1. BLOOM_SIZE property is optional, 32000 * 20 will be the default size.
134	* 2. BLOOM_SIZE should be an integer that greater than 0
135	*/
136	private int validateAndGetBloomFilterSize(DataMapSchema dmSchema)
137	throws MalformedDataMapCommandException {
138	String bloomFilterSizeStr = dmSchema.getProperties().get(BLOOM_SIZE);	1✔
139	if (StringUtils.isBlank(bloomFilterSizeStr)) {	1✔
140	LOGGER.warn(	1✔
141	String.format("Bloom filter size is not configured for datamap %s, use default value %d",	1✔
142	dataMapName, DEFAULT_BLOOM_FILTER_SIZE));	1✔
143	return DEFAULT_BLOOM_FILTER_SIZE;	1✔
144	}
145	int bloomFilterSize;
146	try {
147	bloomFilterSize = Integer.parseInt(bloomFilterSizeStr);	1✔
148	} catch (NumberFormatException e) {	×
149	throw new MalformedDataMapCommandException(	×
150	String.format("Invalid value of bloom filter size '%s', it should be an integer",	×
151	bloomFilterSizeStr));
152	}	1✔
153	// todo: reconsider the boundaries of bloom filter size
154	if (bloomFilterSize <= 0) {	1✔
155	throw new MalformedDataMapCommandException(	×
156	String.format("Invalid value of bloom filter size '%s', it should be greater than 0",	×
157	bloomFilterSizeStr));
158	}
159	return bloomFilterSize;	1✔
160	}
161
162	/**
163	* validate bloom DataMap BLOOM_FPP
164	* 1. BLOOM_FPP property is optional, 0.00001 will be the default value.
165	* 2. BLOOM_FPP should be (0, 1)
166	*/
167	private double validateAndGetBloomFilterFpp(DataMapSchema dmSchema)
168	throws MalformedDataMapCommandException {
169	String bloomFilterFppStr = dmSchema.getProperties().get(BLOOM_FPP);	1✔
170	if (StringUtils.isBlank(bloomFilterFppStr)) {	1✔
171	LOGGER.warn(	1✔
172	String.format("Bloom filter FPP is not configured for datamap %s, use default value %f",	1✔
173	dataMapName, DEFAULT_BLOOM_FILTER_FPP));	1✔
174	return DEFAULT_BLOOM_FILTER_FPP;	1✔
175	}
176	double bloomFilterFpp;
177	try {
178	bloomFilterFpp = Double.parseDouble(bloomFilterFppStr);	1✔
179	} catch (NumberFormatException e) {	×
180	throw new MalformedDataMapCommandException(	×
181	String.format("Invalid value of bloom filter fpp '%s', it should be an numeric",	×
182	bloomFilterFppStr));
183	}	1✔
184	if (bloomFilterFpp < 0 \|\| bloomFilterFpp - 1 >= 0) {	1✔
185	throw new MalformedDataMapCommandException(	×
186	String.format("Invalid value of bloom filter fpp '%s', it should be in range 0~1",	×
187	bloomFilterFppStr));
188	}
189	return bloomFilterFpp;	1✔
190	}
191
192	/**
193	* validate bloom DataMap COMPRESS_BLOOM
194	* Default value is true
195	*/
196	private boolean validateAndGetBloomCompress(DataMapSchema dmSchema) {
197	String bloomCompress = dmSchema.getProperties().get(COMPRESS_BLOOM);	1✔
198	if (StringUtils.isBlank(bloomCompress)) {	1✔
199	LOGGER.warn(	1✔
200	String.format("Bloom compress is not configured for datamap %s, use default value %b",	1✔
201	dataMapName, DEFAULT_BLOOM_COMPRESS));	1✔
202	return DEFAULT_BLOOM_COMPRESS;	1✔
203	}
204	return Boolean.parseBoolean(bloomCompress);	1✔
205	}
206
207	@Override
208	public DataMapWriter createWriter(Segment segment, String shardName,
209	SegmentProperties segmentProperties) throws IOException {
210	LOGGER.info(	1✔
211	String.format("Data of BloomCoarseGranDataMap %s for table %s will be written to %s",	1✔
212	this.dataMapName, getCarbonTable().getTableName() , shardName));	1✔
213	return new BloomDataMapWriter(getCarbonTable().getTablePath(), this.dataMapName,	1✔
214	this.dataMapMeta.getIndexedColumns(), segment, shardName, segmentProperties,	1✔
215	this.bloomFilterSize, this.bloomFilterFpp, bloomCompress);
216	}
217
218	@Override
219	public DataMapBuilder createBuilder(Segment segment, String shardName,
220	SegmentProperties segmentProperties) throws IOException {
221	return new BloomDataMapBuilder(getCarbonTable().getTablePath(), this.dataMapName,	1✔
222	this.dataMapMeta.getIndexedColumns(), segment, shardName, segmentProperties,	1✔
223	this.bloomFilterSize, this.bloomFilterFpp, bloomCompress);
224	}
225
226	/**
227	* returns all shard directories of bloom index files for query
228	* if bloom index files are merged we should get only one shard path
229	*/
230	private Set<String> getAllShardPaths(String tablePath, String segmentId) {
231	String dataMapStorePath = CarbonTablePath.getDataMapStorePath(	1✔
232	tablePath, segmentId, dataMapName);
233	CarbonFile[] carbonFiles = FileFactory.getCarbonFile(dataMapStorePath).listFiles();	1✔
234	Set<String> shardPaths = new HashSet<>();	1✔
235	boolean mergeShardInprogress = false;	1✔
236	CarbonFile mergeShardFile = null;	1✔
237	for (CarbonFile carbonFile : carbonFiles) {	1✔
238	if (carbonFile.getName().equals(BloomIndexFileStore.MERGE_BLOOM_INDEX_SHARD_NAME)) {	1✔
239	mergeShardFile = carbonFile;	1✔
240	} else if (carbonFile.getName().equals(BloomIndexFileStore.MERGE_INPROGRESS_FILE)) {	×
241	mergeShardInprogress = true;	×
242	} else if (carbonFile.isDirectory()) {	×
243	shardPaths.add(FileFactory.getPath(carbonFile.getAbsolutePath()).toString());	×
244	}
245	}
246	if (mergeShardFile != null && !mergeShardInprogress) {	1✔
247	// should only get one shard path if mergeShard is generated successfully
248	shardPaths.clear();	1✔
249	shardPaths.add(FileFactory.getPath(mergeShardFile.getAbsolutePath()).toString());	1✔
250	}
251	return shardPaths;	1✔
252	}
253
254	@Override
255	public List<CoarseGrainDataMap> getDataMaps(Segment segment) throws IOException {
256	List<CoarseGrainDataMap> dataMaps = new ArrayList<>();	1✔
257	try {
258	Set<String> shardPaths = segmentMap.get(segment.getSegmentNo());	1✔
259	if (shardPaths == null) {	1✔
260	shardPaths = getAllShardPaths(getCarbonTable().getTablePath(), segment.getSegmentNo());	1✔
261	segmentMap.put(segment.getSegmentNo(), shardPaths);	1✔
262	}
263	Set<String> filteredShards = segment.getFilteredIndexShardNames();	1✔
264	for (String shard : shardPaths) {	1✔
265	if (shard.endsWith(BloomIndexFileStore.MERGE_BLOOM_INDEX_SHARD_NAME) \|\|	1✔
266	filteredShards.contains(new File(shard).getName())) {	×
267	// Filter out the tasks which are filtered through Main datamap.
268	// for merge shard, shard pruning delay to be done before pruning blocklet
269	BloomCoarseGrainDataMap bloomDM = new BloomCoarseGrainDataMap();	1✔
270	bloomDM.init(new BloomDataMapModel(shard, cache, segment.getConfiguration()));	1✔
271	bloomDM.initIndexColumnConverters(getCarbonTable(), dataMapMeta.getIndexedColumns());	1✔
272	bloomDM.setFilteredShard(filteredShards);	1✔
273	dataMaps.add(bloomDM);	1✔
274	}
275	}	1✔
276	} catch (Exception e) {	×
277	throw new IOException("Error occurs while init Bloom DataMap", e);	×
278	}	1✔
279	return dataMaps;	1✔
280	}
281
282	@Override
283	public List<CoarseGrainDataMap> getDataMaps(DataMapDistributable distributable)
284	throws IOException {
285	List<CoarseGrainDataMap> dataMaps = new ArrayList<>();	1✔
286	String indexPath = ((BloomDataMapDistributable) distributable).getIndexPath();	1✔
287	Set<String> filteredShards = ((BloomDataMapDistributable) distributable).getFilteredShards();	1✔
288	BloomCoarseGrainDataMap bloomDM = new BloomCoarseGrainDataMap();	1✔
289	bloomDM.init(new BloomDataMapModel(indexPath, cache, FileFactory.getConfiguration()));	1✔
290	bloomDM.initIndexColumnConverters(getCarbonTable(), dataMapMeta.getIndexedColumns());	1✔
291	bloomDM.setFilteredShard(filteredShards);	1✔
292	dataMaps.add(bloomDM);	1✔
293	return dataMaps;	1✔
294	}
295
296
297	@Override
298	public List<DataMapDistributable> toDistributable(Segment segment) {
299	List<DataMapDistributable> dataMapDistributableList = new ArrayList<>();	1✔
300	Set<String> shardPaths = segmentMap.get(segment.getSegmentNo());	1✔
301	if (shardPaths == null) {	1✔
302	shardPaths = getAllShardPaths(getCarbonTable().getTablePath(), segment.getSegmentNo());	1✔
303	segmentMap.put(segment.getSegmentNo(), shardPaths);	1✔
304	}
305	Set<String> filteredShards = segment.getFilteredIndexShardNames();	1✔
306	for (String shardPath : shardPaths) {	1✔
307	// Filter out the tasks which are filtered through Main datamap.
308	// for merge shard, shard pruning delay to be done before pruning blocklet
309	if (shardPath.endsWith(BloomIndexFileStore.MERGE_BLOOM_INDEX_SHARD_NAME) \|\|	1✔
310	filteredShards.contains(new File(shardPath).getName())) {	×
311	DataMapDistributable bloomDataMapDistributable =	1✔
312	new BloomDataMapDistributable(shardPath, filteredShards);
313	dataMapDistributableList.add(bloomDataMapDistributable);	1✔
314	}
315	}	1✔
316	return dataMapDistributableList;	1✔
317	}
318
319	@Override
320	public void fireEvent(Event event) {
321
322	}	×
323
324	@Override
325	public void clear(Segment segment) {
326	Set<String> shards = segmentMap.remove(segment.getSegmentNo());	1✔
327	if (shards != null) {	1✔
328	for (String shard : shards) {	1✔
329	for (CarbonColumn carbonColumn : dataMapMeta.getIndexedColumns()) {	1✔
330	cache.invalidate(new BloomCacheKeyValue.CacheKey(shard, carbonColumn.getColName()));	1✔
331	}	1✔
332	}	1✔
333	}
334	}	1✔
335
336	@Override
337	public synchronized void clear() {
338	if (segmentMap.size() > 0) {	1✔
339	List<String> segments = new ArrayList<>(segmentMap.keySet());	1✔
340	for (String segmentId : segments) {	1✔
341	clear(new Segment(segmentId, null, null));	1✔
342	}	1✔
343	}
344	}	1✔
345
346	@Override
347	public void deleteDatamapData(Segment segment) throws IOException {
348	try {
349	String segmentId = segment.getSegmentNo();	1✔
350	String datamapPath = CarbonTablePath	1✔
351	.getDataMapStorePath(getCarbonTable().getTablePath(), segmentId, dataMapName);	1✔
352	if (FileFactory.isFileExist(datamapPath)) {	1✔
353	CarbonFile file = FileFactory.getCarbonFile(datamapPath,	1✔
354	FileFactory.getFileType(datamapPath));	1✔
355	CarbonUtil.deleteFoldersAndFilesSilent(file);	1✔
356	}
357	clear(segment);	1✔
358	} catch (InterruptedException ex) {	×
359	throw new IOException("Failed to delete datamap for segment_" + segment.getSegmentNo());	×
360	}	1✔
361	}	1✔
362
363	@Override
364	public void deleteDatamapData() {
365	SegmentStatusManager ssm =	1✔
366	new SegmentStatusManager(getCarbonTable().getAbsoluteTableIdentifier());	1✔
367	try {
368	List<Segment> validSegments = ssm.getValidAndInvalidSegments().getValidSegments();	1✔
369	for (Segment segment : validSegments) {	1✔
370	deleteDatamapData(segment);	×
371	}	×
372	} catch (IOException e) {	×
373	LOGGER.error("drop datamap failed, failed to delete datamap directory");	×
374	}	1✔
375	}	1✔
376
377	@Override
378	public boolean willBecomeStale(TableOperation operation) {
379	switch (operation) {	1✔
380	case ALTER_RENAME:
381	return false;	1✔
382	case ALTER_DROP:
383	return true;	1✔
384	case ALTER_ADD_COLUMN:
385	return false;	1✔
386	case ALTER_CHANGE_DATATYPE:
387	return true;	1✔
388	case ALTER_COLUMN_RENAME:
389	return true;	1✔
390	case STREAMING:
391	return false;	×
392	case DELETE:
393	return true;	×
394	case UPDATE:
395	return true;	×
396	case PARTITION:
397	return true;	×
398	default:
399	return false;	×
400	}
401	}
402
403	@Override
404	public boolean isOperationBlocked(TableOperation operation, Object... targets) {
405	switch (operation) {	1✔
406	case ALTER_DROP: {
407	// alter table drop columns
408	// will be blocked if the columns in bloomfilter datamap
409	List<String> columnsToDrop = (List<String>) targets[0];	×
410	List<String> indexedColumnNames = dataMapMeta.getIndexedColumnNames();	×
411	for (String indexedcolumn : indexedColumnNames) {	×
412	for (String column : columnsToDrop) {	×
413	if (column.equalsIgnoreCase(indexedcolumn)) {	×
414	return true;	×
415	}
416	}	×
417	}	×
418	return false;	×
419	}
420	case ALTER_CHANGE_DATATYPE:
421	case ALTER_COLUMN_RENAME: {
422	// alter table change one column datatype, or rename
423	// will be blocked if the column in bloomfilter datamap
424	String columnToChangeDatatype = (String) targets[0];	×
425	List<String> indexedColumnNames = dataMapMeta.getIndexedColumnNames();	×
426	for (String indexedcolumn : indexedColumnNames) {	×
427	if (indexedcolumn.equalsIgnoreCase(columnToChangeDatatype)) {	×
428	return true;	×
429	}
430	}	×
431	return false;	×
432	}
433	default:
434	return false;	1✔
435	}
436	}
437
438	@Override
439	public DataMapMeta getMeta() {
440	return this.dataMapMeta;	1✔
441	}
442
443	@Override
444	public DataMapLevel getDataMapLevel() {
445	return DataMapLevel.CG;	1✔
446	}
447	}

apache / carbondata / 2158

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