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

org.apache.hadoop.hbase.filter.FilterList
Implementation of {@link Filter} that represents an ordered List of Filterswhich will be evaluated with a specified boolean operator {@link Operator#MUST_PASS_ALL}(!AND) or {@link Operator#MUST_PASS_ONE} (!OR).Since you can use Filter Lists as children of Filter Lists, you can create a hierarchy of filters to be evaluated. Defaults to {@link Operator#MUST_PASS_ALL}.
TODO: Fix creation of Configuration on serialization and deserialization.

        AccessControlFilter filter = new AccessControlFilter(authManager,
            user, table);


        // wrap any existing filter
        if (scan.hasFilter()) {
          FilterList wrapper = new FilterList(FilterList.Operator.MUST_PASS_ALL,
              Lists.newArrayList(filter, scan.getFilter()));
          scan.setFilter(wrapper);
        } else {
          scan.setFilter(filter);
        }

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        AccessControlFilter filter = new AccessControlFilter(authManager,
            requestUser, table);


        // wrap any existing filter
        if (get.getFilter() != null) {
          FilterList wrapper = new FilterList(FilterList.Operator.MUST_PASS_ALL,
              Lists.newArrayList(filter, get.getFilter()));
          get.setFilter(wrapper);
        } else {
          get.setFilter(filter);
        }

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        AccessControlFilter filter = new AccessControlFilter(authManager,
            user, table);


        // wrap any existing filter
        if (scan.hasFilter()) {
          FilterList wrapper = new FilterList(FilterList.Operator.MUST_PASS_ALL,
              Lists.newArrayList(filter, scan.getFilter()));
          scan.setFilter(wrapper);
        } else {
          scan.setFilter(filter);
        }

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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);
    Scan scan = new Scan();
    scan.addFamily(Bytes.toBytes("trans-blob"));
    scan.addFamily(Bytes.toBytes("trans-type"));
    scan.addFamily(Bytes.toBytes("trans-date"));
    scan.addFamily(Bytes.toBytes("trans-tags"));

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      put.add(family, qual1, 2L, Bytes.toBytes(2L));
      region.put(put);


      Scan idxScan = new Scan();
      idxScan.addFamily(family);
      idxScan.setFilter(new FilterList(FilterList.Operator.MUST_PASS_ALL, Arrays.<Filter> asList(
          new SingleColumnValueFilter(family, qual1, CompareOp.GREATER_OR_EQUAL,
              new BinaryComparator(Bytes.toBytes(0L))), new SingleColumnValueFilter(family, qual1,
              CompareOp.LESS_OR_EQUAL, new BinaryComparator(Bytes.toBytes(3L))))));
      InternalScanner scanner = region.getScanner(idxScan);
      List<Cell> res = new ArrayList<Cell>();

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    }


    protected Scan constructScan(byte[] valuePrefix) throws IOException {
      Scan scan = new Scan();
      scan.addColumn(FAMILY_NAME, QUALIFIER_NAME);
      FilterList list = new FilterList();
      list.addFilter(new SingleColumnValueFilter(
          FAMILY_NAME, QUALIFIER_NAME, CompareFilter.CompareOp.EQUAL,
          new BinaryComparator(valuePrefix)
      ));
      if (this.filterAll) {
        list.addFilter(new FilterAllFilter());
      }
      scan.setFilter(list);
      return scan;
    }

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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);
    Scan scan = new Scan();
    scan.addFamily(Bytes.toBytes("trans-blob"));
    scan.addFamily(Bytes.toBytes("trans-type"));
    scan.addFamily(Bytes.toBytes("trans-date"));
    scan.addFamily(Bytes.toBytes("trans-tags"));

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      put.add(family, qual1, 2L, Bytes.toBytes(2L));
      region.put(put);


      Scan idxScan = new Scan();
      idxScan.addFamily(family);
      idxScan.setFilter(new FilterList(FilterList.Operator.MUST_PASS_ALL,
          Arrays.<Filter>asList(new SingleColumnValueFilter(family, qual1,
              CompareOp.GREATER_OR_EQUAL,
              new BinaryComparator(Bytes.toBytes(0L))),
              new SingleColumnValueFilter(family, qual1, CompareOp.LESS_OR_EQUAL,
                  new BinaryComparator(Bytes.toBytes(3L)))

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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);


    // allFilters.addFilter(new
    // RowExcludingSingleColumnValueFilter(Bytes.toBytes("trans-tags"),
    // Bytes.toBytes("qual2"), CompareOp.EQUAL, Bytes.toBytes(value)));

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    @Override
    void testRow(final int i) throws IOException {
      Scan scan = new Scan(getRandomRow(this.rand, this.totalRows));
      scan.addColumn(FAMILY_NAME, QUALIFIER_NAME);
      FilterList list = new FilterList();
      if (this.filterAll) {
        list.addFilter(new FilterAllFilter());
      }
      list.addFilter(new WhileMatchFilter(new PageFilter(120)));
      scan.setFilter(list);
      ResultScanner s = this.table.getScanner(scan);
      for (Result rr; (rr = s.next()) != null;) ;
      s.close();
    }

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