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]+)?"));


    // Match all values using regex
    expectedRows = numRows;
    expectedKeys = colsPerRow;
    f = new ValueFilter(CompareOp.EQUAL,
        new RegexStringComparator("testValue((One)|(Two))"));
    s = new Scan();
    s.setFilter(f);
    verifyScanNoEarlyOut(s, expectedRows, expectedKeys);


    // Match values less than

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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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            break;
          case NullComparator:
            comparator = new NullComparator();
            break;
          case RegexStringComparator:
            comparator = new RegexStringComparator(value);
            break;
          case SubstringComparator:
            comparator = new SubstringComparator(value);
            break;
          default:

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    Filter exportFilter = null;
    String filterCriteria = (args.length > 5) ? args[5]: null;
    if (filterCriteria == null) return null;
    if (filterCriteria.startsWith("^")) {
      String regexPattern = filterCriteria.substring(1, filterCriteria.length());
      exportFilter = new RowFilter(CompareOp.EQUAL, new RegexStringComparator(regexPattern));
    } else {
      exportFilter = new PrefixFilter(Bytes.toBytes(filterCriteria));
    }
    return exportFilter;
  }

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    Filter rowFilter = null;
    String filterCriteria = (args.length > 3) ? args[3]: null;
    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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      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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        m_cols[i] = Base64.decodeBase64(Bytes.toBytes(colNames[i]));
    }
    setInputColumns(m_cols);
    if (job.get(ROW_FILTER_REGEX) != null) {
        LOG.info("Row Regex Filter[" + job.get(ROW_FILTER_REGEX) + "]");
        setRowFilter(new RowFilter(CompareFilter.CompareOp.EQUAL, new RegexStringComparator(job.get(ROW_FILTER_REGEX))));
    }
    if (job.get(START_ROW) != null) {
        LOG.info("Start Row[" + job.get(START_ROW) + "]");
        try {
            setStartRow(Base64.decodeBase64(job.get(START_ROW).getBytes("US-ASCII")));

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    singleColumnValueFilter.setFilterIfMissing(true);
    return whereScanner.addFilter(singleColumnValueFilter);
  }


  public Where<? extends QueryOps<ROW_ID_TYPE>, ROW_ID_TYPE> match(String regexPattern) {
    RegexStringComparator regexStringComparator = new RegexStringComparator(regexPattern);
    SingleColumnValueFilter singleColumnValueFilter = new SingleColumnValueFilter(family, qualifier,
        CompareOp.EQUAL, regexStringComparator);
    singleColumnValueFilter.setFilterIfMissing(true);
    return whereScanner.addFilter(singleColumnValueFilter);
  }

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  @Override
  public QualifierFilter createQualifierFilterFromRegex(
      CompareFilter.CompareOp op,
      String regexString
  ) {
    return new QualifierFilter(op, new RegexStringComparator(regexString));
  }

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  }


  /** {@inheritDoc} */
  @Override
  public RowFilter createRowFilterFromRegex(CompareFilter.CompareOp op, String regexString) {
    final RegexStringComparator comparator = new RegexStringComparator(regexString);
    comparator.setCharset(Charsets.ISO_8859_1);
    return new RowFilter(op, comparator);
  }

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