| /* |
| * 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. |
| */ |
| |
| package org.apache.carbondata.presto.readers; |
| |
| import org.apache.carbondata.core.metadata.datatype.DataType; |
| import org.apache.carbondata.core.scan.result.vector.impl.CarbonColumnVectorImpl; |
| |
| import io.prestosql.spi.block.Block; |
| import io.prestosql.spi.block.BlockBuilder; |
| import io.prestosql.spi.type.BigintType; |
| import io.prestosql.spi.type.Type; |
| |
| public class LongStreamReader extends CarbonColumnVectorImpl implements PrestoVectorBlockBuilder { |
| |
| protected int batchSize; |
| |
| protected Type type = BigintType.BIGINT; |
| |
| protected BlockBuilder builder; |
| |
| public LongStreamReader(int batchSize, DataType dataType) { |
| super(batchSize, dataType); |
| this.batchSize = batchSize; |
| this.builder = type.createBlockBuilder(null, batchSize); |
| } |
| |
| @Override |
| public Block buildBlock() { |
| return builder.build(); |
| } |
| |
| @Override |
| public void setBatchSize(int batchSize) { |
| this.batchSize = batchSize; |
| } |
| |
| @Override |
| public void putLong(int rowId, long value) { |
| type.writeLong(builder, value); |
| } |
| |
| @Override |
| public void putLongs(int rowId, int count, long value) { |
| for (int i = 0; i < count; i++) { |
| type.writeLong(builder, value); |
| } |
| } |
| |
| @Override |
| public void putNull(int rowId) { |
| builder.appendNull(); |
| } |
| |
| @Override |
| public void reset() { |
| builder = type.createBlockBuilder(null, batchSize); |
| } |
| |
| @Override |
| public void putNulls(int rowId, int count) { |
| for (int i = 0; i < count; i++) { |
| builder.appendNull(); |
| } |
| } |
| |
| @Override |
| public void putObject(int rowId, Object value) { |
| if (value == null) { |
| putNull(rowId); |
| } else { |
| putLong(rowId, (long) value); |
| } |
| } |
| } |