Examples with Builder com.google.bigtable.v2.ReadRowsRequest.Builder used on opensource projects

Example 1 with Builder

use of com.google.bigtable.v2.ReadRowsRequest.Builder in project YCSB by brianfrankcooper.

the class GoogleBigtableClient method scan.

@Override
public Status scan(String table, String startkey, int recordcount, Set<String> fields, Vector<HashMap<String, ByteIterator>> result) {
    setTable(table);
    RowFilter filter = RowFilter.newBuilder().setFamilyNameRegexFilterBytes(ByteStringer.wrap(columnFamilyBytes)).build();
    if (fields != null && fields.size() > 0) {
        Builder filterChain = RowFilter.Chain.newBuilder();
        filterChain.addFilters(filter);
        filterChain.addFilters(RowFilter.newBuilder().setCellsPerColumnLimitFilter(1).build());
        int count = 0;
        // usually "field#" so pre-alloc
        final StringBuilder regex = new StringBuilder(fields.size() * 6);
        for (final String field : fields) {
            if (count++ > 0) {
                regex.append("|");
            }
            regex.append(field);
        }
        filterChain.addFilters(RowFilter.newBuilder().setColumnQualifierRegexFilter(ByteStringer.wrap(regex.toString().getBytes()))).build();
        filter = RowFilter.newBuilder().setChain(filterChain.build()).build();
    }
    final RowRange range = RowRange.newBuilder().setStartKeyClosed(ByteStringer.wrap(startkey.getBytes())).build();
    final RowSet rowSet = RowSet.newBuilder().addRowRanges(range).build();
    final ReadRowsRequest.Builder rrr = ReadRowsRequest.newBuilder().setTableNameBytes(ByteStringer.wrap(lastTableBytes)).setFilter(filter).setRows(rowSet);
    List<Row> rows;
    try {
        rows = client.readRowsAsync(rrr.build()).get();
        if (rows == null || rows.isEmpty()) {
            return Status.NOT_FOUND;
        }
        int numResults = 0;
        for (final Row row : rows) {
            final HashMap<String, ByteIterator> rowResult = new HashMap<String, ByteIterator>(fields != null ? fields.size() : 10);
            for (final Family family : row.getFamiliesList()) {
                if (Arrays.equals(family.getNameBytes().toByteArray(), columnFamilyBytes)) {
                    for (final Column column : family.getColumnsList()) {
                        // we should only have a single cell per column
                        rowResult.put(column.getQualifier().toString(UTF8_CHARSET), new ByteArrayByteIterator(column.getCells(0).getValue().toByteArray()));
                        if (debug) {
                            System.out.println("Result for field: " + column.getQualifier().toString(UTF8_CHARSET) + " is: " + column.getCells(0).getValue().toString(UTF8_CHARSET));
                        }
                    }
                }
            }
            result.add(rowResult);
            numResults++;
            if (numResults >= recordcount) {
                // if hit recordcount, bail out
                break;
            }
        }
        return Status.OK;
    } catch (InterruptedException e) {
        System.err.println("Interrupted during scan: " + e);
        Thread.currentThread().interrupt();
        return Status.ERROR;
    } catch (ExecutionException e) {
        System.err.println("Exception during scan: " + e);
        return Status.ERROR;
    }
}

Example 2 with Builder

use of com.google.bigtable.v2.ReadRowsRequest.Builder in project java-bigtable-hbase by googleapis.

the class TestRowRangeAdapter method testGreaterThan.

@Test
public void testGreaterThan() {
    ByteString key = ByteString.copyFromUtf8("hi");
    RowSet in = RowSet.newBuilder().addRowRanges(RowRange.newBuilder().setStartKeyOpen(key)).build();
    RangeSet<RowKeyWrapper> out = adapter.rowSetToRangeSet(in);
    RangeSet<RowKeyWrapper> expected = ImmutableRangeSet.<RowKeyWrapper>builder().add(Range.greaterThan(new RowKeyWrapper(key))).build();
    assertEquals(expected, out);
    adapter.rangeSetToByteStringRange(out, query);
    assertEquals(in, query.toProto(requestContext).getRows());
}

Example 3 with Builder

use of com.google.bigtable.v2.ReadRowsRequest.Builder in project java-bigtable-hbase by googleapis.

the class TestRowRangeAdapter method testMultipleDisjoint.

@Test
public void testMultipleDisjoint() {
    RowSet in = RowSet.newBuilder().addRowKeys(ByteString.copyFromUtf8("point1")).addRowKeys(ByteString.copyFromUtf8("point2")).addRowRanges(RowRange.newBuilder().setEndKeyClosed(ByteString.copyFromUtf8("b"))).addRowRanges(RowRange.newBuilder().setStartKeyClosed(ByteString.copyFromUtf8("c")).setEndKeyClosed(ByteString.copyFromUtf8("d"))).addRowRanges(RowRange.newBuilder().setStartKeyOpen(ByteString.copyFromUtf8("y"))).build();
    RangeSet<RowKeyWrapper> out = adapter.rowSetToRangeSet(in);
    RangeSet<RowKeyWrapper> expected = ImmutableRangeSet.<RowKeyWrapper>builder().add(Range.singleton(new RowKeyWrapper(ByteString.copyFromUtf8("point1")))).add(Range.singleton(new RowKeyWrapper(ByteString.copyFromUtf8("point2")))).add(Range.atMost(new RowKeyWrapper(ByteString.copyFromUtf8("b")))).add(Range.closed(new RowKeyWrapper(ByteString.copyFromUtf8("c")), new RowKeyWrapper(ByteString.copyFromUtf8("d")))).add(Range.greaterThan(new RowKeyWrapper(ByteString.copyFromUtf8("y")))).build();
    assertEquals(expected, out);
    adapter.rangeSetToByteStringRange(out, query);
    assertEquals(in, query.toProto(requestContext).getRows());
}

Example 4 with Builder

use of com.google.bigtable.v2.ReadRowsRequest.Builder in project java-bigtable-hbase by googleapis.

the class TestRowRangeAdapter method testSingleClosedOpenRangeRowSet.

@Test
public void testSingleClosedOpenRangeRowSet() {
    ByteString key1 = ByteString.copyFromUtf8("myKey");
    ByteString key2 = ByteString.copyFromUtf8("otherKey");
    RowSet in = RowSet.newBuilder().addRowRanges(RowRange.newBuilder().setStartKeyClosed(key1).setEndKeyOpen(key2)).build();
    RangeSet<RowKeyWrapper> out = adapter.rowSetToRangeSet(in);
    RangeSet<RowKeyWrapper> expected = ImmutableRangeSet.<RowKeyWrapper>builder().add(Range.closedOpen(new RowKeyWrapper(key1), new RowKeyWrapper(key2))).build();
    assertEquals(expected, out);
    adapter.rangeSetToByteStringRange(out, query);
    assertEquals(in, query.toProto(requestContext).getRows());
}

Example 5 with Builder

use of com.google.bigtable.v2.ReadRowsRequest.Builder in project java-bigtable-hbase by googleapis.

the class TestRowRangeAdapter method testLesserThan.

@Test
public void testLesserThan() {
    ByteString key = ByteString.copyFromUtf8("hi");
    RowSet in = RowSet.newBuilder().addRowRanges(RowRange.newBuilder().setEndKeyOpen(key)).build();
    RangeSet<RowKeyWrapper> out = adapter.rowSetToRangeSet(in);
    RangeSet<RowKeyWrapper> expected = ImmutableRangeSet.<RowKeyWrapper>builder().add(Range.lessThan(new RowKeyWrapper(key))).build();
    assertEquals(expected, out);
    adapter.rangeSetToByteStringRange(out, query);
    assertEquals(in, query.toProto(requestContext).getRows());
}