/**
* 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.drill.exec.record;
import com.google.common.collect.Lists;
import io.netty.buffer.ByteBuf;
import org.apache.drill.exec.proto.BitData.FragmentRecordBatch;
import org.apache.drill.exec.proto.ExecProtos.FragmentHandle;
import org.apache.drill.exec.proto.UserBitShared.QueryId;
import org.apache.drill.exec.proto.UserBitShared.RecordBatchDef;
import org.apache.drill.exec.proto.UserBitShared.RecordBatchDefOrBuilder;
import org.apache.drill.exec.proto.UserBitShared.SerializedField;
import java.util.List;
public class FragmentWritableBatch{
static final org.slf4j.Logger logger = org.slf4j.LoggerFactory.getLogger(FragmentWritableBatch.class);
private static RecordBatchDef EMPTY_DEF = RecordBatchDef.newBuilder().setRecordCount(0).build();
private final ByteBuf[] buffers;
private final FragmentRecordBatch header;
public FragmentWritableBatch(boolean isLast, QueryId queryId, int sendMajorFragmentId, int sendMinorFragmentId, int receiveMajorFragmentId, int receiveMinorFragmentId, WritableBatch batch){
this(isLast, queryId, sendMajorFragmentId, sendMinorFragmentId, receiveMajorFragmentId, receiveMinorFragmentId, batch.getDef(), batch.getBuffers());
}
private FragmentWritableBatch(boolean isLast, QueryId queryId, int sendMajorFragmentId, int sendMinorFragmentId, int receiveMajorFragmentId, int receiveMinorFragmentId, RecordBatchDef def, ByteBuf... buffers){
this.buffers = buffers;
FragmentHandle handle = FragmentHandle //
.newBuilder() //
.setMajorFragmentId(receiveMajorFragmentId) //
.setMinorFragmentId(receiveMinorFragmentId) //
.setQueryId(queryId) //
.build();
this.header = FragmentRecordBatch //
.newBuilder() //
.setIsLastBatch(isLast) //
.setDef(def) //
.setHandle(handle) //
.setSendingMajorFragmentId(sendMajorFragmentId) //
.setSendingMinorFragmentId(sendMinorFragmentId) //
.build();
}
public static FragmentWritableBatch getEmptyLast(QueryId queryId, int sendMajorFragmentId, int sendMinorFragmentId, int receiveMajorFragmentId, int receiveMinorFragmentId){
return new FragmentWritableBatch(true, queryId, sendMajorFragmentId, sendMinorFragmentId, receiveMajorFragmentId, receiveMinorFragmentId, EMPTY_DEF);
}
public static FragmentWritableBatch getEmptyLastWithSchema(QueryId queryId, int sendMajorFragmentId, int sendMinorFragmentId,
int receiveMajorFragmentId, int receiveMinorFragmentId, BatchSchema schema){
List<SerializedField> fields = Lists.newArrayList();
for (MaterializedField field : schema) {
fields.add(field.getAsBuilder().build());
}
RecordBatchDef def = RecordBatchDef.newBuilder().addAllField(fields).build();
return new FragmentWritableBatch(true, queryId, sendMajorFragmentId, sendMinorFragmentId, receiveMajorFragmentId, receiveMinorFragmentId, def);
}
public ByteBuf[] getBuffers(){
return buffers;
}
public long getByteCount() {
long n = 0;
for (ByteBuf buf : buffers) {
n += buf.readableBytes();
}
return n;
}
public FragmentRecordBatch getHeader() {
return header;
}
}