Package org.apache.hadoop.hbase.filter

Examples of org.apache.hadoop.hbase.filter.PrefixFilter

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  private ResultScanner buildScanner(String keyPrefix, String value, HTable ht)
      throws IOException {
    // OurFilterList allFilters = new OurFilterList();
    FilterList allFilters = new FilterList(/* FilterList.Operator.MUST_PASS_ALL */);
    allFilters.addFilter(new PrefixFilter(Bytes.toBytes(keyPrefix)));
    SingleColumnValueFilter filter = new SingleColumnValueFilter(Bytes
        .toBytes("trans-tags"), Bytes.toBytes("qual2"), CompareOp.EQUAL, Bytes
        .toBytes(value));
    filter.setFilterIfMissing(true);
    allFilters.addFilter(filter);
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  private ResultScanner buildScanner(String keyPrefix, String value, HTable ht)
      throws IOException {
    // OurFilterList allFilters = new OurFilterList();
    FilterList allFilters = new FilterList(/* FilterList.Operator.MUST_PASS_ALL */);
    allFilters.addFilter(new PrefixFilter(Bytes.toBytes(keyPrefix)));
    SingleColumnValueFilter filter = new SingleColumnValueFilter(Bytes
        .toBytes("trans-tags"), Bytes.toBytes("qual2"), CompareOp.EQUAL, Bytes
        .toBytes(value));
    filter.setFilterIfMissing(true);
    allFilters.addFilter(filter);
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      // Test filters are serialized properly.
      scan = new Scan(startRow);
      final String name = "testScan";
      byte [] prefix = Bytes.toBytes(name);
      scan.setFilter(new PrefixFilter(prefix));
      scanProto = ProtobufUtil.toScan(scan);
      desScan = ProtobufUtil.toScan(scanProto);
      Filter f = desScan.getFilter();
      assertTrue(f instanceof PrefixFilter);
    }
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  private InternalScanner buildScanner(String keyPrefix, String value, HRegion r)
      throws IOException {
    // Defaults FilterList.Operator.MUST_PASS_ALL.
    FilterList allFilters = new FilterList();
    allFilters.addFilter(new PrefixFilter(Bytes.toBytes(keyPrefix)));
    // Only return rows where this column value exists in the row.
    SingleColumnValueFilter filter = new SingleColumnValueFilter(Bytes.toBytes("trans-tags"),
        Bytes.toBytes("qual2"), CompareOp.EQUAL, Bytes.toBytes(value));
    filter.setFilterIfMissing(true);
    allFilters.addFilter(filter);
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        "-D" + Import.FILTER_ARGS_CONF_KEY + "=" + Bytes.toString(ROW1), IMPORT_TABLE, FQ_OUTPUT_DIR,
        "1000" };
    assertTrue(runImport(args));

    // get the count of the source table for that time range
    PrefixFilter filter = new PrefixFilter(ROW1);
    int count = getCount(exportTable, filter);

    Assert.assertEquals("Unexpected row count between export and import tables", count,
      getCount(importTable, null));
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    if (filterCriteria == null) return null;
    if (filterCriteria.startsWith("^")) {
      String regexPattern = filterCriteria.substring(1, filterCriteria.length());
      rowFilter = new RowFilter(CompareFilter.CompareOp.EQUAL, new RegexStringComparator(regexPattern));
    } else {
      rowFilter = new PrefixFilter(Bytes.toBytes(filterCriteria));
    }
    return rowFilter;
  }
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    if (filterCriteria == null) return null;
    if (filterCriteria.startsWith("^")) {
      String regexPattern = filterCriteria.substring(1, filterCriteria.length());
      rowFilter = new RowFilter(CompareFilter.CompareOp.EQUAL, new RegexStringComparator(regexPattern));
    } else {
      rowFilter = new PrefixFilter(Bytes.toBytes(filterCriteria));
    }
    return rowFilter;
  }
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  public void testRowCountWithPrefixFilter() throws Throwable {
    AggregationClient aClient = new AggregationClient(conf);
    Scan scan = new Scan();
    scan.addColumn(TEST_FAMILY, TEST_QUALIFIER);
    final ColumnInterpreter<Long, Long> ci = new LongColumnInterpreter();
    Filter f = new PrefixFilter(Bytes.toBytes("foo:bar"));
    scan.setFilter(f);
    long rowCount = aClient.rowCount(TEST_TABLE, ci,
        scan);
    assertEquals(0, rowCount);
  }
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  public void testMaxWithFilter() throws Throwable {
    Long max = 0l;
    AggregationClient aClient = new AggregationClient(conf);
    Scan scan = new Scan();
    scan.addColumn(TEST_FAMILY, TEST_QUALIFIER);
    Filter f = new PrefixFilter(Bytes.toBytes("foo:bar"));
    scan.setFilter(f);
    final ColumnInterpreter<Long, Long> ci = new LongColumnInterpreter();
    max = aClient.max(TEST_TABLE, ci, scan);
    assertEquals(null, max);
  }
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  @Test
  public void testMinWithFilter() throws Throwable {
    AggregationClient aClient = new AggregationClient(conf);
    Scan scan = new Scan();
    scan.addColumn(TEST_FAMILY, TEST_QUALIFIER);
    Filter f = new PrefixFilter(Bytes.toBytes("foo:bar"));
    scan.setFilter(f);
    final ColumnInterpreter<Long, Long> ci = new LongColumnInterpreter();
    Long min = null;
    min = aClient.min(TEST_TABLE, ci, scan);
    assertEquals(null, min);
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