modules/platforms/cpp/odbc/src/streaming/streaming_batch.cpp

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include "ignite/impl/interop/interop_output_stream.h"
#include "ignite/impl/binary/binary_writer_impl.h"

#include "ignite/odbc/app/parameter_set.h"
#include "ignite/odbc/streaming/streaming_batch.h"

namespace ignite
{
    namespace odbc
    {
        namespace streaming
        {
            StreamingBatch::StreamingBatch() :
                currentSql(),
                size(0),
                data(1024 * 16)
            {
                // No-op.
            }

            StreamingBatch::~StreamingBatch()
            {
                // No-op.
            }

            void StreamingBatch::AddRow(const std::string& sql, const app::ParameterSet& params)
            {
                impl::interop::InteropOutputStream out(&data);

                out.Position(data.Length());

                impl::binary::BinaryWriterImpl writer(&out, 0);

                if (currentSql != sql)
                {
                    currentSql = sql;

                    writer.WriteString(sql);
                }
                else
                    writer.WriteNull();

                params.Write(writer);
                ++size;

                out.Synchronize();
            }

            void StreamingBatch::Clear()
            {
                currentSql.clear();

                size = 0;

                data.Length(0);
            }
        }
    }
}