| /* |
| * 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.iotdb.db.mpp.plan.planner.plan.node.source; |
| |
| import org.apache.iotdb.common.rpc.thrift.TRegionReplicaSet; |
| import org.apache.iotdb.commons.path.AlignedPath; |
| import org.apache.iotdb.commons.path.PartialPath; |
| import org.apache.iotdb.commons.path.PathDeserializeUtil; |
| import org.apache.iotdb.db.mpp.plan.planner.plan.node.PlanNode; |
| import org.apache.iotdb.db.mpp.plan.planner.plan.node.PlanNodeId; |
| import org.apache.iotdb.db.mpp.plan.planner.plan.node.PlanNodeType; |
| import org.apache.iotdb.db.mpp.plan.planner.plan.node.PlanNodeUtil; |
| import org.apache.iotdb.db.mpp.plan.planner.plan.node.PlanVisitor; |
| import org.apache.iotdb.db.mpp.plan.statement.component.Ordering; |
| import org.apache.iotdb.tsfile.common.constant.TsFileConstant; |
| import org.apache.iotdb.tsfile.read.filter.basic.Filter; |
| import org.apache.iotdb.tsfile.read.filter.factory.FilterFactory; |
| import org.apache.iotdb.tsfile.utils.ReadWriteIOUtils; |
| |
| import com.google.common.collect.ImmutableList; |
| |
| import javax.annotation.Nullable; |
| |
| import java.io.DataOutputStream; |
| import java.io.IOException; |
| import java.nio.ByteBuffer; |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.Objects; |
| |
| public class AlignedSeriesScanNode extends SeriesSourceNode { |
| |
| // The paths of the target series which will be scanned. |
| private final AlignedPath alignedPath; |
| |
| // The order to traverse the data. |
| // Currently, we only support TIMESTAMP_ASC and TIMESTAMP_DESC here. |
| // The default order is TIMESTAMP_ASC, which means "order by timestamp asc" |
| private Ordering scanOrder = Ordering.ASC; |
| |
| // time filter for current series, could be null if doesn't exist |
| @Nullable private Filter timeFilter; |
| |
| // value filter for current series, could be null if doesn't exist |
| @Nullable private Filter valueFilter; |
| |
| // Limit for result set. The default value is -1, which means no limit |
| private int limit; |
| |
| // offset for result set. The default value is 0 |
| private int offset; |
| |
| // The id of DataRegion where the node will run |
| private TRegionReplicaSet regionReplicaSet; |
| |
| public AlignedSeriesScanNode(PlanNodeId id, AlignedPath alignedPath) { |
| super(id); |
| this.alignedPath = alignedPath; |
| } |
| |
| public AlignedSeriesScanNode(PlanNodeId id, AlignedPath alignedPath, Ordering scanOrder) { |
| this(id, alignedPath); |
| this.scanOrder = scanOrder; |
| } |
| |
| public AlignedSeriesScanNode( |
| PlanNodeId id, |
| AlignedPath alignedPath, |
| Ordering scanOrder, |
| @Nullable Filter timeFilter, |
| @Nullable Filter valueFilter, |
| int limit, |
| int offset, |
| TRegionReplicaSet dataRegionReplicaSet) { |
| this(id, alignedPath, scanOrder); |
| this.timeFilter = timeFilter; |
| this.valueFilter = valueFilter; |
| this.limit = limit; |
| this.offset = offset; |
| this.regionReplicaSet = dataRegionReplicaSet; |
| } |
| |
| public AlignedPath getAlignedPath() { |
| return alignedPath; |
| } |
| |
| public Ordering getScanOrder() { |
| return scanOrder; |
| } |
| |
| @Nullable |
| public Filter getTimeFilter() { |
| return timeFilter; |
| } |
| |
| public void setTimeFilter(@Nullable Filter timeFilter) { |
| this.timeFilter = timeFilter; |
| } |
| |
| @Nullable |
| public Filter getValueFilter() { |
| return valueFilter; |
| } |
| |
| public int getLimit() { |
| return limit; |
| } |
| |
| public int getOffset() { |
| return offset; |
| } |
| |
| @Override |
| public void open() throws Exception {} |
| |
| @Override |
| public TRegionReplicaSet getRegionReplicaSet() { |
| return regionReplicaSet; |
| } |
| |
| @Override |
| public void setRegionReplicaSet(TRegionReplicaSet regionReplicaSet) { |
| this.regionReplicaSet = regionReplicaSet; |
| } |
| |
| @Override |
| public void close() throws Exception {} |
| |
| @Override |
| public List<PlanNode> getChildren() { |
| return ImmutableList.of(); |
| } |
| |
| @Override |
| public int allowedChildCount() { |
| return NO_CHILD_ALLOWED; |
| } |
| |
| @Override |
| public void addChild(PlanNode child) { |
| throw new UnsupportedOperationException("no child is allowed for AlignedSeriesScanNode"); |
| } |
| |
| @Override |
| public PlanNode clone() { |
| return new AlignedSeriesScanNode( |
| getPlanNodeId(), |
| getAlignedPath(), |
| getScanOrder(), |
| getTimeFilter(), |
| getValueFilter(), |
| getLimit(), |
| getOffset(), |
| this.regionReplicaSet); |
| } |
| |
| @Override |
| public List<String> getOutputColumnNames() { |
| List<String> outputColumnNames = new ArrayList<>(); |
| String deviceName = alignedPath.getDevice(); |
| for (String measurement : alignedPath.getMeasurementList()) { |
| outputColumnNames.add(deviceName.concat(TsFileConstant.PATH_SEPARATOR + measurement)); |
| } |
| return outputColumnNames; |
| } |
| |
| @Override |
| public <R, C> R accept(PlanVisitor<R, C> visitor, C context) { |
| return visitor.visitAlignedSeriesScan(this, context); |
| } |
| |
| @Override |
| protected void serializeAttributes(ByteBuffer byteBuffer) { |
| PlanNodeType.ALIGNED_SERIES_SCAN.serialize(byteBuffer); |
| alignedPath.serialize(byteBuffer); |
| ReadWriteIOUtils.write(scanOrder.ordinal(), byteBuffer); |
| if (timeFilter == null) { |
| ReadWriteIOUtils.write((byte) 0, byteBuffer); |
| } else { |
| ReadWriteIOUtils.write((byte) 1, byteBuffer); |
| timeFilter.serialize(byteBuffer); |
| } |
| if (valueFilter == null) { |
| ReadWriteIOUtils.write((byte) 0, byteBuffer); |
| } else { |
| ReadWriteIOUtils.write((byte) 1, byteBuffer); |
| valueFilter.serialize(byteBuffer); |
| } |
| ReadWriteIOUtils.write(limit, byteBuffer); |
| ReadWriteIOUtils.write(offset, byteBuffer); |
| } |
| |
| @Override |
| protected void serializeAttributes(DataOutputStream stream) throws IOException { |
| PlanNodeType.ALIGNED_SERIES_SCAN.serialize(stream); |
| alignedPath.serialize(stream); |
| ReadWriteIOUtils.write(scanOrder.ordinal(), stream); |
| if (timeFilter == null) { |
| ReadWriteIOUtils.write((byte) 0, stream); |
| } else { |
| ReadWriteIOUtils.write((byte) 1, stream); |
| timeFilter.serialize(stream); |
| } |
| if (valueFilter == null) { |
| ReadWriteIOUtils.write((byte) 0, stream); |
| } else { |
| ReadWriteIOUtils.write((byte) 1, stream); |
| valueFilter.serialize(stream); |
| } |
| ReadWriteIOUtils.write(limit, stream); |
| ReadWriteIOUtils.write(offset, stream); |
| } |
| |
| public static AlignedSeriesScanNode deserialize(ByteBuffer byteBuffer) { |
| AlignedPath alignedPath = (AlignedPath) PathDeserializeUtil.deserialize(byteBuffer); |
| Ordering scanOrder = Ordering.values()[ReadWriteIOUtils.readInt(byteBuffer)]; |
| byte isNull = ReadWriteIOUtils.readByte(byteBuffer); |
| Filter timeFilter = null; |
| if (isNull == 1) { |
| timeFilter = FilterFactory.deserialize(byteBuffer); |
| } |
| isNull = ReadWriteIOUtils.readByte(byteBuffer); |
| Filter valueFilter = null; |
| if (isNull == 1) { |
| valueFilter = FilterFactory.deserialize(byteBuffer); |
| } |
| int limit = ReadWriteIOUtils.readInt(byteBuffer); |
| int offset = ReadWriteIOUtils.readInt(byteBuffer); |
| PlanNodeId planNodeId = PlanNodeId.deserialize(byteBuffer); |
| return new AlignedSeriesScanNode( |
| planNodeId, alignedPath, scanOrder, timeFilter, valueFilter, limit, offset, null); |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| if (this == o) { |
| return true; |
| } |
| if (o == null || getClass() != o.getClass()) { |
| return false; |
| } |
| if (!super.equals(o)) { |
| return false; |
| } |
| AlignedSeriesScanNode that = (AlignedSeriesScanNode) o; |
| return limit == that.limit |
| && offset == that.offset |
| && alignedPath.equals(that.alignedPath) |
| && scanOrder == that.scanOrder |
| && Objects.equals(timeFilter, that.timeFilter) |
| && Objects.equals(valueFilter, that.valueFilter) |
| && Objects.equals(regionReplicaSet, that.regionReplicaSet); |
| } |
| |
| @Override |
| public int hashCode() { |
| return Objects.hash( |
| super.hashCode(), |
| alignedPath, |
| scanOrder, |
| timeFilter, |
| valueFilter, |
| limit, |
| offset, |
| regionReplicaSet); |
| } |
| |
| public String toString() { |
| return String.format( |
| "AlignedSeriesScanNode-%s:[SeriesPath: %s, DataRegion: %s]", |
| this.getPlanNodeId(), |
| this.getAlignedPath().getFormattedString(), |
| PlanNodeUtil.printRegionReplicaSet(getRegionReplicaSet())); |
| } |
| |
| @Override |
| public PartialPath getPartitionPath() { |
| return alignedPath; |
| } |
| |
| @Override |
| public Filter getPartitionTimeFilter() { |
| return timeFilter; |
| } |
| } |