Package org.apache.tajo.storage.index.bst

Examples of org.apache.tajo.storage.index.bst.BSTIndex$BSTIndexReader

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  private final Schema schema;
  private final TupleComparator comp;

  public RangeRetrieverHandler(File outDir, Schema schema, TupleComparator comp) throws IOException {
    this.file = outDir;
    BSTIndex index = new BSTIndex(new TajoConf());
    this.schema = schema;
    this.comp = comp;
    FileSystem fs = FileSystem.getLocal(new Configuration());
    Path indexPath = fs.makeQualified(new Path(outDir.getCanonicalPath(), "index"));
    this.idxReader =
        index.getIndexReader(indexPath, this.schema, this.comp);
    this.idxReader.open();
    LOG.info("BSTIndex is loaded from disk (" + idxReader.getFirstKey() + ", "
        + idxReader.getLastKey());
  }
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  public FileChunk getFileCunks(Path outDir,
                                      String startKey,
                                      String endKey,
                                      boolean last) throws IOException {
    BSTIndex index = new BSTIndex(new TajoConf());
    BSTIndex.BSTIndexReader idxReader =
        index.getIndexReader(new Path(outDir, "index"));
    idxReader.open();
    Schema keySchema = idxReader.getKeySchema();
    TupleComparator comparator = idxReader.getComparator();

    LOG.info("BSTIndex is loaded from disk (" + idxReader.getFirstKey() + ", "
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  public FileChunk getFileCunks(Path outDir,
                                      String startKey,
                                      String endKey,
                                      boolean last) throws IOException {
    BSTIndex index = new BSTIndex(new TajoConf());
    BSTIndex.BSTIndexReader idxReader =
        index.getIndexReader(new Path(outDir, "index"));
    idxReader.open();
    Schema keySchema = idxReader.getKeySchema();
    TupleComparator comparator = idxReader.getComparator();

    LOG.info("BSTIndex is loaded from disk (" + idxReader.getFirstKey() + ", "
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    keySchema.addColumn(new Column("long", Type.INT8));
    keySchema.addColumn(new Column("double", Type.FLOAT8));

    TupleComparator comp = new TupleComparator(keySchema, sortKeys);

    BSTIndex bst = new BSTIndex(conf);
    BSTIndexWriter creater = bst.getIndexWriter(new Path(testDir,
        "FindValueInCSV.idx"), BSTIndex.TWO_LEVEL_INDEX, keySchema, comp);
    creater.setLoadNum(LOAD_NUM);
    creater.open();

    SeekableScanner fileScanner = new CSVScanner(conf, meta, tablet);
    fileScanner.init();
    Tuple keyTuple;
    long offset;
    while (true) {
      keyTuple = new VTuple(2);
      offset = fileScanner.getNextOffset();
      tuple = fileScanner.next();
      if (tuple == null)
        break;

      keyTuple.put(0, tuple.get(1));
      keyTuple.put(1, tuple.get(2));
      creater.write(keyTuple, offset);
    }

    creater.flush();
    creater.close();
    fileScanner.close();

    tuple = new VTuple(keySchema.getColumnNum());
    BSTIndexReader reader = bst.getIndexReader(new Path(testDir,
        "FindValueInCSV.idx"), keySchema, comp);
    reader.open();
    fileScanner = new CSVScanner(conf, meta, tablet);
    fileScanner.init();
    for (int i = 0; i < TUPLE_NUM - 1; i++) {
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    keySchema.addColumn(new Column("int", Type.INT4));
    keySchema.addColumn(new Column("long", Type.INT8));

    TupleComparator comp = new TupleComparator(keySchema, sortKeys);
   
    BSTIndex bst = new BSTIndex(conf);
    BSTIndexWriter creater = bst.getIndexWriter(new Path(testDir, "FindNextKeyValueInCSV.idx"),
        BSTIndex.TWO_LEVEL_INDEX, keySchema, comp);
    creater.setLoadNum(LOAD_NUM);
    creater.open();
   
    SeekableScanner fileScanner  = new CSVScanner(conf, meta, tablet);
    fileScanner.init();
    Tuple keyTuple;
    long offset;
    while (true) {
      keyTuple = new VTuple(2);
      offset = fileScanner.getNextOffset();
      tuple = fileScanner.next();
      if (tuple == null) break;
     
      keyTuple.put(0, tuple.get(0));
      keyTuple.put(1, tuple.get(1));
      creater.write(keyTuple, offset);
    }
   
    creater.flush();
    creater.close();
    fileScanner.close();   
   
    BSTIndexReader reader = bst.getIndexReader(new Path(testDir, "FindNextKeyValueInCSV.idx"), keySchema, comp);
    reader.open();
    fileScanner  = new CSVScanner(conf, meta, tablet);
    fileScanner.init();
    Tuple result;
    for(int i = 0 ; i < TUPLE_NUM -1 ; i ++) {
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    keySchema.addColumn(new Column("long", Type.INT8));
    keySchema.addColumn(new Column("double", Type.FLOAT8));

    TupleComparator comp = new TupleComparator(keySchema, sortKeys);
   
    BSTIndex bst = new BSTIndex(conf);
    BSTIndexWriter creater = bst.getIndexWriter(new Path(testDir, "FindValueInCSV.idx"),
        BSTIndex.TWO_LEVEL_INDEX,
        keySchema, comp);   
    creater.setLoadNum(LOAD_NUM);
    creater.open();

    SeekableScanner scanner = StorageManagerFactory.getSeekableScanner(conf, meta, tablet, meta.getSchema());
    scanner.init();

    Tuple keyTuple;
    long offset;
    while (true) {
      keyTuple = new VTuple(2);
      offset = scanner.getNextOffset();
      tuple = scanner.next();
      if (tuple == null) break;
     
      keyTuple.put(0, tuple.get(1));
      keyTuple.put(1, tuple.get(2));
      creater.write(keyTuple, offset);
    }
   
    creater.flush();
    creater.close();
    scanner.close();
   
    tuple = new VTuple(keySchema.getColumnNum());
    BSTIndexReader reader = bst.getIndexReader(new Path(testDir, "FindValueInCSV.idx"), keySchema, comp);
    reader.open();
    scanner = StorageManagerFactory.getSeekableScanner(conf, meta, tablet, meta.getSchema());
    scanner.init();

    for(int i = 0 ; i < TUPLE_NUM -1 ; i ++) {
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    keySchema.addColumn(new Column("long", Type.INT8));
    keySchema.addColumn(new Column("double", Type.FLOAT8));

    TupleComparator comp = new TupleComparator(keySchema, sortKeys);

    BSTIndex bst = new BSTIndex(conf);
    BSTIndexWriter creater = bst.getIndexWriter(new Path(testDir, "BuildIndexWithAppender.idx"),
        BSTIndex.TWO_LEVEL_INDEX, keySchema, comp);
    creater.setLoadNum(LOAD_NUM);
    creater.open();

    Tuple tuple;
    long offset;
    for(int i = 0 ; i < TUPLE_NUM; i ++ ) {
      tuple = new VTuple(5);
      tuple.put(0, DatumFactory.createInt4(i));
      tuple.put(1, DatumFactory.createInt8(i));
      tuple.put(2, DatumFactory.createFloat8(i));
      tuple.put(3, DatumFactory.createFloat4(i));
      tuple.put(4, DatumFactory.createText("field_" + i));

      offset = appender.getOffset();
      appender.addTuple(tuple);
      creater.write(tuple, offset);
    }
    appender.flush();
    appender.close();

    creater.flush();
    creater.close();


    FileStatus status = fs.getFileStatus(tablePath);
    long fileLen = status.getLen();
    Fragment tablet = new Fragment("table1_1", status.getPath(), meta, 0, fileLen);

    tuple = new VTuple(keySchema.getColumnNum());
    BSTIndexReader reader = bst.getIndexReader(new Path(testDir, "BuildIndexWithAppender.idx"),
        keySchema, comp);
    reader.open();
    SeekableScanner scanner = StorageManagerFactory.getSeekableScanner(conf, meta, tablet, meta.getSchema());
    scanner.init();
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    keySchema.addColumn(new Column("long", Type.INT8));
    keySchema.addColumn(new Column("double", Type.FLOAT8));

    TupleComparator comp = new TupleComparator(keySchema, sortKeys);
   
    BSTIndex bst = new BSTIndex(conf);
    BSTIndexWriter creater = bst.getIndexWriter(new Path(testDir, "FindOmittedValueInCSV.idx"),
        BSTIndex.TWO_LEVEL_INDEX, keySchema, comp);
    creater.setLoadNum(LOAD_NUM);
    creater.open();

    SeekableScanner scanner  = StorageManagerFactory.getSeekableScanner(conf, meta, tablet, meta.getSchema());
    scanner.init();

    Tuple keyTuple;
    long offset;
    while (true) {
      keyTuple = new VTuple(2);
      offset = scanner.getNextOffset();
      tuple = scanner.next();
      if (tuple == null) break;
     
      keyTuple.put(0, tuple.get(1));
      keyTuple.put(1, tuple.get(2));
      creater.write(keyTuple, offset);
    }
   
    creater.flush();
    creater.close();
    scanner.close();

    BSTIndexReader reader = bst.getIndexReader(new Path(testDir, "FindOmittedValueInCSV.idx"), keySchema, comp);
    reader.open();
    for(int i = 1 ; i < TUPLE_NUM -1 ; i+=2) {
      keyTuple.put(0, DatumFactory.createInt8(i));
      keyTuple.put(1, DatumFactory.createFloat8(i));
      long offsets = reader.find(keyTuple);
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    keySchema.addColumn(new Column("int", Type.INT4));
    keySchema.addColumn(new Column("long", Type.INT8));

    TupleComparator comp = new TupleComparator(keySchema, sortKeys);
   
    BSTIndex bst = new BSTIndex(conf);
    BSTIndexWriter creater = bst.getIndexWriter(new Path(testDir, "FindNextKeyValueInCSV.idx"),
        BSTIndex.TWO_LEVEL_INDEX, keySchema, comp);
    creater.setLoadNum(LOAD_NUM);
    creater.open();

    SeekableScanner scanner  = StorageManagerFactory.getSeekableScanner(conf, meta, tablet, meta.getSchema());
    scanner.init();

    Tuple keyTuple;
    long offset;
    while (true) {
      keyTuple = new VTuple(2);
      offset = scanner.getNextOffset();
      tuple = scanner.next();
      if (tuple == null) break;
     
      keyTuple.put(0, tuple.get(0));
      keyTuple.put(1, tuple.get(1));
      creater.write(keyTuple, offset);
    }
   
    creater.flush();
    creater.close();
    scanner.close();
   
    BSTIndexReader reader = bst.getIndexReader(new Path(testDir, "FindNextKeyValueInCSV.idx"),
        keySchema, comp);
    reader.open();
    scanner  = StorageManagerFactory.getSeekableScanner(conf, meta, tablet, meta.getSchema());
    scanner.init();
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    keySchema.addColumn(new Column("int", Type.INT4));
    keySchema.addColumn(new Column("long", Type.INT8));

    TupleComparator comp = new TupleComparator(keySchema, sortKeys);
   
    BSTIndex bst = new BSTIndex(conf);
    BSTIndexWriter creater = bst.getIndexWriter(new Path(testDir,
        "FindNextKeyOmittedValueInCSV.idx"), BSTIndex.TWO_LEVEL_INDEX, keySchema, comp);
    creater.setLoadNum(LOAD_NUM);
    creater.open();

    SeekableScanner scanner  = StorageManagerFactory.getSeekableScanner(conf, meta, tablet, meta.getSchema());
    scanner.init();

    Tuple keyTuple;
    long offset;
    while (true) {
      keyTuple = new VTuple(2);
      offset = scanner.getNextOffset();
      tuple = scanner.next();
      if (tuple == null) break;
     
      keyTuple.put(0, tuple.get(0));
      keyTuple.put(1, tuple.get(1));
      creater.write(keyTuple, offset);
    }
   
    creater.flush();
    creater.close();
    scanner.close();
   
    BSTIndexReader reader = bst.getIndexReader(new Path(testDir, "FindNextKeyOmittedValueInCSV.idx"),
        keySchema, comp);
    reader.open();
    scanner  = StorageManagerFactory.getSeekableScanner(conf, meta, tablet, meta.getSchema());
    scanner.init();
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Related Classes of org.apache.tajo.storage.index.bst.BSTIndex$BSTIndexReader

  • org.apache.hadoop.fs.FSDataOutputStream
  • org.apache.hadoop.fs.Path
  • org.apache.tajo.catalog.proto.CatalogProtos.SchemaProto
  • org.apache.tajo.catalog.Schema
  • org.apache.tajo.engine.planner.physical.BSTIndexScanExec
  • org.apache.tajo.engine.planner.physical.IndexedStoreExec
  • org.apache.tajo.engine.planner.physical.RangeShuffleFileWriteExec
  • org.apache.tajo.engine.planner.physical.TestBSTIndexExec
  • org.apache.tajo.engine.planner.physical.TestPhysicalPlanner
  • org.apache.tajo.pullserver.PullServerAuxService
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