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

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

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    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();

    for(int i = 0 ; i < TUPLE_NUM -1 ; i ++) {
      tuple.put(0, DatumFactory.createInt8(i));
      tuple.put(1, DatumFactory.createFloat8(i));
      long offsets = reader.find(tuple);
      scanner.seek(offsets);
      tuple = scanner.next();
      assertTrue("[seek check " + (i) + " ]", (i) == (tuple.get(1).asInt8()));
      assertTrue("[seek check " + (i) + " ]" , (i) == (tuple.get(2).asFloat8()));

      offsets = reader.next();
      if (offsets == -1) {
        continue;
      }
      scanner.seek(offsets);
      tuple = scanner.next();
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    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);
      assertEquals(-1, offsets);
    }
  }
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    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();

    Tuple result;
    for(int i = 0 ; i < TUPLE_NUM -1 ; i ++) {
      keyTuple = new VTuple(2);
      keyTuple.put(0, DatumFactory.createInt4(i));
      keyTuple.put(1, DatumFactory.createInt8(i));
      long offsets = reader.find(keyTuple, true);
      scanner.seek(offsets);
      result = scanner.next();
      assertTrue("[seek check " + (i + 1) + " ]",
          (i + 1) == (result.get(0).asInt4()));
      assertTrue("[seek check " + (i + 1) + " ]" , (i + 1) == (result.get(1).asInt8()));
     
      offsets = reader.next();
      if (offsets == -1) {
        continue;
      }
      scanner.seek(offsets);
      result = scanner.next();
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    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();

    Tuple result;
    for(int i = 1 ; i < TUPLE_NUM -1 ; i+=2) {
      keyTuple = new VTuple(2);
      keyTuple.put(0, DatumFactory.createInt4(i));
      keyTuple.put(1, DatumFactory.createInt8(i));
      long offsets = reader.find(keyTuple, true);
      scanner.seek(offsets);
      result = scanner.next();
      assertTrue("[seek check " + (i + 1) + " ]" , (i + 1) == (result.get(0).asInt4()));
      assertTrue("[seek check " + (i + 1) + " ]" , (i + 1) == (result.get(1).asInt8()));
    }
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    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++) {
      tuple.put(0, DatumFactory.createInt8(i));
      tuple.put(1, DatumFactory.createFloat8(i));
      long offsets = reader.find(tuple);
      fileScanner.seek(offsets);
      tuple = fileScanner.next();
      assertEquals(i,  (tuple.get(1).asInt8()));
      assertEquals(i, (tuple.get(2).asFloat8()) , 0.01);

      offsets = reader.next();
      if (offsets == -1) {
        continue;
      }
      fileScanner.seek(offsets);
      tuple = fileScanner.next();
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    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 ++) {
      keyTuple = new VTuple(2);
      keyTuple.put(0, DatumFactory.createInt4(i));
      keyTuple.put(1, DatumFactory.createInt8(i));
      long offsets = reader.find(keyTuple, true);
      fileScanner.seek(offsets);
      result = fileScanner.next();
      assertTrue("[seek check " + (i + 1) + " ]" , (i + 1) == (result.get(0).asInt4()));
      assertTrue("[seek check " + (i + 1) + " ]" , (i + 1) == (result.get(1).asInt8()));
     
      offsets = reader.next();
      if (offsets == -1) {
        continue;
      }
      fileScanner.seek(offsets);
      result = fileScanner.next();
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    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 ++) {
      tuple.put(0, DatumFactory.createInt8(i));
      tuple.put(1, DatumFactory.createFloat8(i));
      long offsets = reader.find(tuple);
      scanner.seek(offsets);
      tuple = scanner.next();
      assertTrue("seek check [" + (i) + " ," +(tuple.get(1).asInt8())+ "]" , (i) == (tuple.get(1).asInt8()));
      assertTrue("seek check [" + (i) + " ,"  +(tuple.get(2).asFloat8())+"]" , (i) == (tuple.get(2).asFloat8()));
     
      offsets = reader.next();
      if (offsets == -1) {
        continue;
      }
      scanner.seek(offsets);
      tuple = scanner.next();
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    creater.flush();
    creater.close();
    fileScanner.close();

    tuple = new VTuple(keySchema.size());
    BSTIndexReader reader = bst.getIndexReader(new Path(testDir,
        "FindValueInCSV.idx"), keySchema, comp);
    reader.open();
    fileScanner = new CSVScanner(conf, schema, meta, tablet);
    fileScanner.init();
    for (int i = 0; i < TUPLE_NUM - 1; i++) {
      tuple.put(0, DatumFactory.createInt8(i));
      tuple.put(1, DatumFactory.createFloat8(i));
      long offsets = reader.find(tuple);
      fileScanner.seek(offsets);
      tuple = fileScanner.next();
      assertEquals(i,  (tuple.get(1).asInt8()));
      assertEquals(i, (tuple.get(2).asFloat8()) , 0.01);

      offsets = reader.next();
      if (offsets == -1) {
        continue;
      }
      fileScanner.seek(offsets);
      tuple = fileScanner.next();
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    creater.flush();
    creater.close();
    fileScanner.close();   
   
    BSTIndexReader reader = bst.getIndexReader(new Path(testDir, "FindNextKeyValueInCSV.idx"), keySchema, comp);
    reader.open();
    fileScanner  = new CSVScanner(conf, schema, meta, tablet);
    fileScanner.init();
    Tuple result;
    for(int i = 0 ; i < TUPLE_NUM -1 ; i ++) {
      keyTuple = new VTuple(2);
      keyTuple.put(0, DatumFactory.createInt4(i));
      keyTuple.put(1, DatumFactory.createInt8(i));
      long offsets = reader.find(keyTuple, true);
      fileScanner.seek(offsets);
      result = fileScanner.next();
      assertTrue("[seek check " + (i + 1) + " ]" , (i + 1) == (result.get(0).asInt4()));
      assertTrue("[seek check " + (i + 1) + " ]" , (i + 1) == (result.get(1).asInt8()));
     
      offsets = reader.next();
      if (offsets == -1) {
        continue;
      }
      fileScanner.seek(offsets);
      result = fileScanner.next();
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    creater.flush();
    creater.close();
    scanner.close();

    tuple = new VTuple(keySchema.size());
    BSTIndexReader reader = bst.getIndexReader(new Path(testDir, "testFindValue_" + storeType + ".idx"), keySchema, comp);
    reader.open();
    scanner = StorageManagerFactory.getSeekableScanner(conf, meta, schema, tablet, schema);
    scanner.init();

    for (int i = 0; i < TUPLE_NUM - 1; i++) {
      tuple.put(0, DatumFactory.createInt8(i));
      tuple.put(1, DatumFactory.createFloat8(i));
      long offsets = reader.find(tuple);
      scanner.seek(offsets);
      tuple = scanner.next();
      assertTrue("seek check [" + (i) + " ," + (tuple.get(1).asInt8()) + "]", (i) == (tuple.get(1).asInt8()));
      assertTrue("seek check [" + (i) + " ," + (tuple.get(2).asFloat8()) + "]", (i) == (tuple.get(2).asFloat8()));

      offsets = reader.next();
      if (offsets == -1) {
        continue;
      }
      scanner.seek(offsets);
      tuple = scanner.next();
      assertTrue("[seek check " + (i + 1) + " ]", (i + 1) == (tuple.get(0).asInt4()));
      assertTrue("[seek check " + (i + 1) + " ]", (i + 1) == (tuple.get(1).asInt8()));
    }
    reader.close();
    scanner.close();
  }
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Related Classes of org.apache.tajo.storage.index.bst.BSTIndex.BSTIndexReader

  • org.apache.tajo.storage.index.TestBSTIndex
  • org.apache.tajo.storage.index.TestSingleCSVFileBSTIndex
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