Examples with Column com.google.bigtable.v2.Column used on opensource projects

Example 1 with Column

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

the class GoogleBigtableClient method read.

@Override
public Status read(String table, String key, Set<String> fields, HashMap<String, ByteIterator> result) {
    if (debug) {
        System.out.println("Doing read from Bigtable columnfamily " + new String(columnFamilyBytes));
        System.out.println("Doing read for key: " + key);
    }
    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 ReadRowsRequest.Builder rrr = ReadRowsRequest.newBuilder().setTableNameBytes(ByteStringer.wrap(lastTableBytes)).setFilter(filter).setRowKey(ByteStringer.wrap(key.getBytes()));
    List<Row> rows;
    try {
        rows = client.readRowsAsync(rrr.build()).get();
        if (rows == null || rows.isEmpty()) {
            return Status.NOT_FOUND;
        }
        for (final Row row : rows) {
            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
                        result.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));
                        }
                    }
                }
            }
        }
        return Status.OK;
    } catch (InterruptedException e) {
        System.err.println("Interrupted during get: " + e);
        Thread.currentThread().interrupt();
        return Status.ERROR;
    } catch (ExecutionException e) {
        System.err.println("Exception during get: " + e);
        return Status.ERROR;
    }
}

Example 2 with Column

use of com.google.bigtable.v2.Column 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().setStartKey(ByteStringer.wrap(startkey.getBytes())).build();
    final ReadRowsRequest.Builder rrr = ReadRowsRequest.newBuilder().setTableNameBytes(ByteStringer.wrap(lastTableBytes)).setFilter(filter).setRowRange(range);
    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 3 with Column

use of com.google.bigtable.v2.Column in project simple-bigtable by spotify.

the class ColumnReadImplTest method testParentDataTypeToDataType.

@Test
public void testParentDataTypeToDataType() throws Exception {
    assertEquals(Optional.empty(), columnRead.parentTypeToCurrentType().apply(Optional.empty()));
    assertEquals(Optional.empty(), columnRead.parentTypeToCurrentType().apply(Optional.of(Family.getDefaultInstance())));
    final Column column = Column.getDefaultInstance();
    final Family family = Family.newBuilder().addColumns(column).build();
    assertEquals(Optional.of(column), columnRead.parentTypeToCurrentType().apply(Optional.of(family)));
}

Example 4 with Column

use of com.google.bigtable.v2.Column in project simple-bigtable by spotify.

the class ColumnsReadImplTest method testParentDataTypeToDataType.

@Test
public void testParentDataTypeToDataType() throws Exception {
    assertEquals(Lists.newArrayList(), columnsRead.parentTypeToCurrentType().apply(Optional.empty()));
    assertEquals(Lists.newArrayList(), columnsRead.parentTypeToCurrentType().apply(Optional.of(Family.getDefaultInstance())));
    final Column column = Column.getDefaultInstance();
    final Family family = Family.newBuilder().addColumns(column).build();
    assertEquals(ImmutableList.of(column), columnsRead.parentTypeToCurrentType().apply(Optional.of(family)));
}

Example 5 with Column

use of com.google.bigtable.v2.Column in project beam by apache.

the class BigtableTableTestUtils method setFixedTimestamp.

// There is no possibility to insert a value with fixed timestamp so we have to replace it
// for the testing purpose.
static com.google.bigtable.v2.Row setFixedTimestamp(com.google.bigtable.v2.Row row) {
    Family family = row.getFamilies(0);
    List<Column> columnsReplaced = family.getColumnsList().stream().map(column -> {
        Cell cell = column.getCells(0);
        return column(column.getQualifier().toStringUtf8(), cell.getValue().toByteArray());
    }).collect(toList());
    Family familyReplaced = Family.newBuilder().setName(family.getName()).addAllColumns(columnsReplaced).build();
    return com.google.bigtable.v2.Row.newBuilder().setKey(row.getKey()).addFamilies(familyReplaced).build();
}