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

Example 11 with Builder

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

the class ReadRowsResumptionStrategy method getResumeRequest.

/**
 * {@inheritDoc}
 *
 * <p>Given a request, this implementation will narrow that request to exclude all row keys and
 * ranges that would produce rows that come before {@link #lastKey}. Furthermore this
 * implementation takes care to update the row limit of the request to account for all of the
 * received rows.
 */
@Override
public ReadRowsRequest getResumeRequest(ReadRowsRequest originalRequest) {
    // so resume with the original request object.
    if (lastKey.isEmpty()) {
        return originalRequest;
    }
    RowSet remaining = RowSetUtil.split(originalRequest.getRows(), lastKey).getRight();
    // for more details.
    if (remaining == null || (originalRequest.getRowsLimit() > 0 && originalRequest.getRowsLimit() == numProcessed)) {
        return ReadRowsRetryCompletedCallable.FULFILLED_REQUEST_MARKER;
    }
    Builder builder = originalRequest.toBuilder().setRows(remaining);
    if (originalRequest.getRowsLimit() > 0) {
        Preconditions.checkState(originalRequest.getRowsLimit() > numProcessed, "Detected too many rows for the current row limit during a retry.");
        builder.setRowsLimit(originalRequest.getRowsLimit() - numProcessed);
    }
    return builder.build();
}

Example 12 with Builder

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

the class GoogleBigtableClient method read.

@Override
public Status read(String table, String key, Set<String> fields, Map<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).setRows(RowSet.newBuilder().addRowKeys(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 13 with Builder

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

the class TestRowMutationsAdapter method toMutateRowRequest.

private MutateRowRequest toMutateRowRequest(byte[] rowKey, com.google.cloud.bigtable.data.v2.models.Mutation mutation) {
    RowMutation rowMutation = toRowMutationModel(rowKey, mutation);
    MutateRowRequest.Builder builder = rowMutation.toProto(REQUEST_CONTEXT).toBuilder();
    return builder.build();
}

Example 14 with Builder

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

the class TestRowRangeAdapter method testLesserOrEqThan.

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

Example 15 with Builder

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

the class TestRowRangeAdapter method testGreaterOrEqThan.

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