Package org.apache.hadoop.hbase.index.client

Examples of org.apache.hadoop.hbase.index.client.SingleIndexExpression

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    "TestScanFilterEvaluatorForIndexInScan").toString();

  @Test
  public void testSingleIndexExpressionWithOneEqualsExpression() throws Exception {
    String indexName = "idx1";
    SingleIndexExpression singleIndexExpression = new SingleIndexExpression(indexName);
    byte[] value = "1".getBytes();
    Column column = new Column(FAMILY1, QUALIFIER1);
    EqualsExpression equalsExpression = new EqualsExpression(column, value);
    singleIndexExpression.addEqualsExpression(equalsExpression);

    Scan scan = new Scan();
    scan.setAttribute(Constants.INDEX_EXPRESSION, IndexUtils.toBytes(singleIndexExpression));
    Filter filter = new SingleColumnValueFilter(FAMILY1, QUALIFIER1, CompareOp.EQUAL, value);
    scan.setFilter(filter);
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  }

  @Test
  public void testSingleIndexExpressionWithMoreEqualsExpsAndOneRangeExp() throws Exception {
    String indexName = "idx1";
    SingleIndexExpression singleIndexExpression = new SingleIndexExpression(indexName);
    byte[] value1 = "1".getBytes();
    byte[] value2 = Bytes.toBytes(1234);
    Column column = new Column(FAMILY1, QUALIFIER1);
    EqualsExpression equalsExpression = new EqualsExpression(column, value1);
    singleIndexExpression.addEqualsExpression(equalsExpression);
    column = new Column(FAMILY1, QUALIFIER2);
    equalsExpression = new EqualsExpression(column, value2);
    singleIndexExpression.addEqualsExpression(equalsExpression);
    column = new Column(FAMILY1, QUALIFIER3);
    byte[] value3_1 = Bytes.toBytes(10.4F);
    byte[] value3_2 = Bytes.toBytes(16.91F);
    RangeExpression re = new RangeExpression(column, value3_1, value3_2, true, false);
    singleIndexExpression.setRangeExpression(re);

    Scan scan = new Scan();
    scan.setAttribute(Constants.INDEX_EXPRESSION, IndexUtils.toBytes(singleIndexExpression));
    FilterList fl = new FilterList(Operator.MUST_PASS_ALL);
    Filter filter = new SingleColumnValueFilter(FAMILY1, QUALIFIER1, CompareOp.EQUAL, value1);
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  @Test
  public void testMultiIndexExpression() throws Exception {
    MultiIndexExpression multiIndexExpression = new MultiIndexExpression(GroupingCondition.AND);
    String index1 = "idx1";
    SingleIndexExpression singleIndexExpression = new SingleIndexExpression(index1);
    byte[] value2 = Bytes.toBytes(1234);
    Column column = new Column(FAMILY1, QUALIFIER2);
    EqualsExpression equalsExpression = new EqualsExpression(column, value2);
    singleIndexExpression.addEqualsExpression(equalsExpression);
    column = new Column(FAMILY1, QUALIFIER3);
    byte[] value3_1 = Bytes.toBytes(10.4F);
    byte[] value3_2 = Bytes.toBytes(16.91F);
    RangeExpression re = new RangeExpression(column, value3_1, value3_2, true, false);
    singleIndexExpression.setRangeExpression(re);
    multiIndexExpression.addIndexExpression(singleIndexExpression);

    MultiIndexExpression multiIndexExpression2 = new MultiIndexExpression(GroupingCondition.OR);
    String index2 = "idx2";
    singleIndexExpression = new SingleIndexExpression(index2);
    byte[] value1 = Bytes.toBytes("asdf");
    column = new Column(FAMILY1, QUALIFIER1);
    equalsExpression = new EqualsExpression(column, value1);
    singleIndexExpression.addEqualsExpression(equalsExpression);
    multiIndexExpression2.addIndexExpression(singleIndexExpression);

    String index3 = "idx3";
    singleIndexExpression = new SingleIndexExpression(index3);
    byte[] value4 = Bytes.toBytes(567.009D);
    column = new Column(FAMILY2, QUALIFIER1);
    equalsExpression = new EqualsExpression(column, value4);
    singleIndexExpression.addEqualsExpression(equalsExpression);
    multiIndexExpression2.addIndexExpression(singleIndexExpression);

    multiIndexExpression.addIndexExpression(multiIndexExpression2);

    Scan scan = new Scan();
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    p = new Put("row3".getBytes());
    p.add("cf1".getBytes(), "cq".getBytes(), "rrr_sss_hhh_bangalore_karnataka".getBytes());
    table.put(p);

    Scan scan = new Scan();
    SingleIndexExpression singleIndexExpression = new SingleIndexExpression("idx1");
    byte[] value = "huawei".getBytes();
    Column column = new Column("cf1".getBytes(), "cq".getBytes(), vp);
    EqualsExpression equalsExpression = new EqualsExpression(column, value);
    singleIndexExpression.addEqualsExpression(equalsExpression);
    scan.setAttribute(Constants.INDEX_EXPRESSION, IndexUtils.toBytes(singleIndexExpression));
    scan.setFilter(new SingleColumnValuePartitionFilter(hcd.getName(), "cq".getBytes(),
        CompareOp.EQUAL, "huawei".getBytes(), vp));
    int i = 0;
    ResultScanner scanner = table.getScanner(scan);
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        nlfn.addFilterNode(fn);
      }
      return nlfn;
    } else {
      // SingleIndexExpression
      SingleIndexExpression sie = (SingleIndexExpression) indexExpression;
      IndexSpecification index = nameVsIndex.get(sie.getIndexName());
      if (index == null) {
        throw new RuntimeException("No index:" + sie.getIndexName() + " added for table:"
            + tableName);
      }
      Map<Column, ColumnQualifier> colVsCQ = new HashMap<Column, ColumnQualifier>();
      for (ColumnQualifier cq : index.getIndexColumns()) {
        colVsCQ
            .put(new Column(cq.getColumnFamily(), cq.getQualifier(), cq.getValuePartition()), cq);
      }
      // TODO -- seems some thing wrong with IndexFilterNode! Ideally I need to create that here.
      NonLeafFilterNode nlfn = new NonLeafFilterNode(null);
      List<FilterColumnValueDetail> fcvds = new ArrayList<FilterColumnValueDetail>();
      // Here by we expect that the equals expressions are given the order of columns in index.
      // TODO add reordering if needed?
      for (EqualsExpression ee : sie.getEqualsExpressions()) {
        ColumnQualifier cq = colVsCQ.get(ee.getColumn());
        if (cq == null) {
          throw new RuntimeException("The column:[" + ee.getColumn() + "] is not a part of index: "
              + sie.getIndexName());
        }
        FilterColumnValueDetail fcvd =
            new FilterColumnValueDetail(ee.getColumn(), ee.getValue(), CompareOp.EQUAL);
        fcvd.maxValueLength = cq.getMaxValueLength();
        fcvd.valueType = cq.getType();
        fcvds.add(fcvd);
      }
      // RangeExpression to come after the EqualsExpressions
      RangeExpression re = sie.getRangeExpression();
      if (re != null) {
        ColumnQualifier cq = colVsCQ.get(re.getColumn());
        if (cq == null) {
          throw new RuntimeException("The column:[" + re.getColumn() + "] is not a part of index: "
              + sie.getIndexName());
        }
        CompareOp lowerBoundCompareOp =
            re.isLowerBoundInclusive() ? CompareOp.GREATER_OR_EQUAL : CompareOp.GREATER;
        CompareOp upperBoundCompareOp =
            re.isUpperBoundInclusive() ? CompareOp.LESS_OR_EQUAL : CompareOp.LESS;
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Related Classes of org.apache.hadoop.hbase.index.client.SingleIndexExpression

  • org.apache.hadoop.hbase.index.coprocessor.regionserver.ScanFilterEvaluator
  • org.apache.hadoop.hbase.index.coprocessor.regionserver.TestScanFilterEvaluatorForIndexInScan
  • org.apache.hadoop.hbase.index.TestValuePartitionInScan
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