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

org.apache.hadoop.hbase.filter.RegexStringComparator
P address "(((25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\.){3,3}" + "(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?))(\\/[0-9]+)?" + "|" + // v6 IP address "((([\\dA-Fa-f]{1,4}:){7}[\\dA-Fa-f]{1,4})(:([\\d]{1,3}.)" + "{3}[\\d]{1,3})?)(\\/[0-9]+)?"));

      ht.put(put);
    }
    Scan scan = new Scan();
    scan.addFamily(FAMILY);
    Filter filter = new QualifierFilter(CompareOp.EQUAL,
        new RegexStringComparator("col[1-5]"));
    scan.setFilter(filter);
    ResultScanner scanner = ht.getScanner(scan);
    int expectedIndex = 1;
    for(Result result : ht.getScanner(scan)) {
      assertEquals(result.size(), 1);

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      Scan scan = new Scan();
      scan.addFamily(ACL_LIST_FAMILY);


      String columnName = Bytes.toString(column);
      scan.setFilter(new QualifierFilter(CompareOp.EQUAL, new RegexStringComparator(
                     String.format("(%s%s%s)|(%s%s)$",
                     ACL_KEY_DELIMITER, columnName, ACL_KEY_DELIMITER,
                     ACL_KEY_DELIMITER, columnName))));


      Set<byte[]> qualifierSet = new TreeSet<byte[]>(Bytes.BYTES_COMPARATOR);

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      Scan scan = new Scan();
      scan.addFamily(ACL_LIST_FAMILY);


      String columnName = Bytes.toString(column);
      scan.setFilter(new QualifierFilter(CompareOp.EQUAL, new RegexStringComparator(
                     String.format("(%s%s%s)|(%s%s)$",
                     ACL_KEY_DELIMITER, columnName, ACL_KEY_DELIMITER,
                     ACL_KEY_DELIMITER, columnName))));


      Set<byte[]> qualifierSet = new TreeSet<byte[]>(Bytes.BYTES_COMPARATOR);

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      ht.put(put);
    }
    Scan scan = new Scan();
    scan.addFamily(FAMILY);
    Filter filter = new QualifierFilter(CompareOp.EQUAL,
      new RegexStringComparator("col[1-5]"));
    scan.setFilter(filter);
    ResultScanner scanner = ht.getScanner(scan);
    int expectedIndex = 1;
    for(Result result : ht.getScanner(scan)) {
      assertEquals(result.size(), 1);

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      scan.addColumn(family.getBytes(), column.getBytes());
      scan.setStartRow(startRow.getBytes());
      scan.setTimeRange(startTime, endTime);
      scan.setMaxVersions();
      if(filterByRowKey) {
        RowFilter rf = new RowFilter(CompareOp.EQUAL, new 
            RegexStringComparator("[0-9]+-"+rkey+"$")); 
        scan.setFilter(rf);
      }
      ResultScanner results = table.getScanner(scan);
      Iterator<Result> it = results.iterator();

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      ht.put(put);
    }
    Scan scan = new Scan();
    scan.addFamily(FAMILY);
    Filter filter = new QualifierFilter(CompareOp.EQUAL,
        new RegexStringComparator("col[1-5]"));
    scan.setFilter(filter);
    ResultScanner scanner = ht.getScanner(scan);
    int expectedIndex = 1;
    for(Result result : ht.getScanner(scan)) {
      assertEquals(result.size(), 1);

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            // This isn't good (who would ever want to use a regex to check string length?)
            // However, short of writing an entire input format, this is the best we can do.
            // It seems to improve performance by >50% with NSRL loaded in, so it's better
            // than nothing.
            scan.setFilter(new RowFilter(CompareOp.EQUAL, new RegexStringComparator(".{20,}")));


            HBaseConfiguration.addHbaseResources(j.getConfiguration());


            j.getConfiguration().set(TableInputFormat.INPUT_TABLE, "hash");
            j.getConfiguration().set(TableInputFormat.SCAN, convertScanToString(scan));

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      ht.put(put);
    }
    Scan scan = new Scan();
    scan.addFamily(FAMILY);
    Filter filter = new QualifierFilter(CompareOp.EQUAL,
      new RegexStringComparator("col[1-5]"));
    scan.setFilter(filter);
    ResultScanner scanner = ht.getScanner(scan);
    int expectedIndex = 1;
    for(Result result : ht.getScanner(scan)) {
      assertEquals(result.size(), 1);

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    }
    Scan scan = new Scan();
    scan.setReversed(true);
    scan.addFamily(FAMILY);
    Filter filter = new QualifierFilter(CompareOp.EQUAL,
        new RegexStringComparator("col[1-5]"));
    scan.setFilter(filter);
    ResultScanner scanner = ht.getScanner(scan);
    int expectedIndex = 5;
    for (Result result : scanner) {
      assertEquals(result.size(), 1);

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    // Test getting a single row, single key using Row, Qualifier, and Value 
    // regular expression and substring filters
    // Use must pass all
    List<Filter> filters = new ArrayList<Filter>();
    filters.add(new RowFilter(CompareOp.EQUAL,
      new RegexStringComparator(".+-2")));
    filters.add(new QualifierFilter(CompareOp.EQUAL,
      new RegexStringComparator(".+-2")));
    filters.add(new ValueFilter(CompareOp.EQUAL,
      new SubstringComparator("One")));
    Filter f = new FilterList(Operator.MUST_PASS_ALL, filters);
    Scan s = new Scan();
    s.addFamily(FAMILIES[0]);
    s.setFilter(f);
    KeyValue [] kvs = {
        new KeyValue(ROWS_ONE[2], FAMILIES[0], QUALIFIERS_ONE[2], VALUES[0])
    };
    verifyScanFull(s, kvs);


    // Test getting everything with a MUST_PASS_ONE filter including row, qf,
    // val, regular expression and substring filters
    filters.clear();
    filters.add(new RowFilter(CompareOp.EQUAL,
      new RegexStringComparator(".+Two.+")));
    filters.add(new QualifierFilter(CompareOp.EQUAL,
      new RegexStringComparator(".+-2")));
    filters.add(new ValueFilter(CompareOp.EQUAL,
      new SubstringComparator("One")));
    f = new FilterList(Operator.MUST_PASS_ONE, filters);
    s = new Scan();
    s.setFilter(f);

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