Examples with DeleteType org.apache.hadoop.hbase.protobuf.generated.ClientProtos.MutationProto.DeleteType used on opensource projects

Example 1 with DeleteType

use of org.apache.hadoop.hbase.protobuf.generated.ClientProtos.MutationProto.DeleteType in project hbase by apache.

the class ProtobufUtil method toDelete.

/**
   * Convert a protocol buffer Mutate to a Delete
   *
   * @param proto the protocol buffer Mutate to convert
   * @param cellScanner if non-null, the data that goes with this delete.
   * @return the converted client Delete
   * @throws IOException
   */
public static Delete toDelete(final MutationProto proto, final CellScanner cellScanner) throws IOException {
    MutationType type = proto.getMutateType();
    assert type == MutationType.DELETE : type.name();
    long timestamp = proto.hasTimestamp() ? proto.getTimestamp() : HConstants.LATEST_TIMESTAMP;
    Delete delete = proto.hasRow() ? new Delete(proto.getRow().toByteArray(), timestamp) : null;
    int cellCount = proto.hasAssociatedCellCount() ? proto.getAssociatedCellCount() : 0;
    if (cellCount > 0) {
        // The proto has metadata only and the data is separate to be found in the cellScanner.
        if (cellScanner == null) {
            // TextFormat should be fine for a Delete since it carries no data, just coordinates.
            throw new DoNotRetryIOException("Cell count of " + cellCount + " but no cellScanner: " + TextFormat.shortDebugString(proto));
        }
        for (int i = 0; i < cellCount; i++) {
            if (!cellScanner.advance()) {
                // TextFormat should be fine for a Delete since it carries no data, just coordinates.
                throw new DoNotRetryIOException("Cell count of " + cellCount + " but at index " + i + " no cell returned: " + TextFormat.shortDebugString(proto));
            }
            Cell cell = cellScanner.current();
            if (delete == null) {
                delete = new Delete(cell.getRowArray(), cell.getRowOffset(), cell.getRowLength(), timestamp);
            }
            delete.addDeleteMarker(cell);
        }
    } else {
        if (delete == null) {
            throw new IllegalArgumentException("row cannot be null");
        }
        for (ColumnValue column : proto.getColumnValueList()) {
            byte[] family = column.getFamily().toByteArray();
            for (QualifierValue qv : column.getQualifierValueList()) {
                DeleteType deleteType = qv.getDeleteType();
                byte[] qualifier = null;
                if (qv.hasQualifier()) {
                    qualifier = qv.getQualifier().toByteArray();
                }
                long ts = HConstants.LATEST_TIMESTAMP;
                if (qv.hasTimestamp()) {
                    ts = qv.getTimestamp();
                }
                if (deleteType == DeleteType.DELETE_ONE_VERSION) {
                    delete.addColumn(family, qualifier, ts);
                } else if (deleteType == DeleteType.DELETE_MULTIPLE_VERSIONS) {
                    delete.addColumns(family, qualifier, ts);
                } else if (deleteType == DeleteType.DELETE_FAMILY_VERSION) {
                    delete.addFamilyVersion(family, ts);
                } else {
                    delete.addFamily(family, ts);
                }
            }
        }
    }
    delete.setDurability(toDurability(proto.getDurability()));
    for (NameBytesPair attribute : proto.getAttributeList()) {
        delete.setAttribute(attribute.getName(), attribute.getValue().toByteArray());
    }
    return delete;
}